" FI "  Electronic Fuel Injection System

Electronic Control Unit Instruction Manual

" In tro d u c tio n " T hank you very m uch for purchasing the "F i" system E C U (E lectronic C ontrol U nit) "F I" is a fu e l in je c tio n s y s te m fo r s m a ll d is p la c e m e n t m o to rc y c le , a n d th is s y s te m is n o t a sim plified but a full functional system , as w ell as it of large displacem e n t M o to rc yc le . E C U ca n d e te c t v a rio u s s ta te s o f e n g in e b y v a rio u s s e n s o rs a n d c o n tro l th e o p tim a l v o lu m e o f fu e l. F u rth e rm o re , if y o u u s e th is s ys te m , it is p o s sib le to s e t u p a lm o s t a ll th e p a ra m e te rs a b o u t Injection w ith the personal com puter linked to E C U . A lm ost all param eters can be set up by the full range. O f course, you can use a setup w hich F C design prepares and can also do a setup from zero.

P le a s e r e a d n o t e s o f th e fo llo w in g p a g e b e f o r e b e g i n n in g t o u s e t h is s y s te m . If you have any questions about this system or instruction m anual, please contuct us.

F C D e s ig n 2-1-48-101, H onm achi, F uchucho, A kigun, H iroshim a, Japan post code 735-0006 T el + 81-82-287-0211 F ax + 81-82-287-0212 http://w w w .fc-design.com E -m ail:info@ fc-design.com

" A tten tio n " (1)

T his product is only for racing use. T herefore, w e recom m end strongly that you use this system in safe places w hich can respond to the em ergency engine stole by the m istaken arrangem ent etc., such as a circuit.

(2)

P lease install controller in the place w hich avoided raindrops, splash, etc.

(3)

D o not install a controller in places w hich becom e high tem perature extrem ely, such a s near an exhaust pipe.

(4)

W hen you arrange setting or check this system w ith engine started, w e recom m end you to go in a w ell ventilated place,strongly.

(5)

S ince high pressure has started the fuel line, please check pipe and hose to keep a perform ance and safety. M oreover, please be sure to check before a running.

(6)

In o rd e r to a v o id th e a c c id e n t, p le a s e d e c o m p re s s th e p re s s u re in fu e l lin e b e fo re decom pose a fuel pipe system .

(7)

D o not use this product other than the original purpose.

(8)

Y ou shall not about this system (H ardw ear,S oftw ear,D ocum ents,etc.): (a)C opy, in w hole or in part. (b)M odify (c)R everse engineering of the com position parts of this product containing softw are. (R everse com pile or reverse assem ble the P C softw ear and E C U firm w ear) (d) T ransfer softw are, a docum ent, and C D -R O M independently.

(9)

W hen you use this system com bining the products of the other com pany ,w e do not take responsibility for other com pany 's products .

(10)

If you have troubles and accidents by using this product w ithout observing notes above,w e w ill not take no com pensation and responsibility.

Danger

Warning For Racing Use Only

Caution

! fu el p res su re o ve r 4 kg f/c m 2

F ire strict p roh ibition in d is as se m b ly

a vo id e xp os ure to w a ter

a vo id s ta tic e le ctricity a nd e le ctric s ho ck

" W h en y o u co n n e ct E C U to th e s ys te m h a rn e s s... "

(1)

A fter rem oving term inal of vehicle w iring w hich are connected to the battery, connect system harness to w iring of vehicles, attach or rem ove E C U to system harness.

(2)

W hen E C U is connected for the first tim e, please look at the lam p display of E C U w ell. P lease turn off a sw itch prom ptly, and check the polarity of a pow er supply, and connection, w hen a pow er supply lam p does not light up.

(3)

W hen you disconnect a coupler from system harness, be careful not to cut the w ire of it.  

" C o n te n t " (1 )

P ro d u c t o u tlin e (a) E C U exterior  (b) Fuel Injection C ontrol (c) O ther C ontrols (d) O ther P arts of S ystem (e) D ial C ontroller (f) Lam p D isplay F unction

(2 )

p1-1 p1-3 p1-6 p1-7 p1-9 p1-11

T u to ria l o f P C s o ftw a re [ S W B ]   (a) H ow to Install (b) O utline of "SW B " (c) S tart and E xit (d) H ow to Set-up the S ettings -- "M ap" (e) R ead Settings from E C U (f) R ead Settings from the File (g) S ave S ettings to the File (h) E dit "B asic Injection T im e" Settings (A ) "C hanging a value for every point" (B ) "M ultiplying "G ain" to every dom ain "

p2-1 p2-2 p2-5 p2-6 p2-7 p2-9 p2-10 p2-11 p2-12 p2-14 p2-15 p2-18 p2-19 p2-21

    (C ) exam ple     (D ) S et the M utiple rate every R .P .M .  (i) Enable / D isable of C om pensations.  (j) "Fuel P um p D rive" settring.  (k) R ev. lim itter & Indicator.  (l) "C om pensation" setting. p2-22      H ow to change.          W arm -U p C om pensation p2-23     Start-U p C om pensation     Start-U p Injection Tim e p2-24     Asynchronous Injection     Fuel C ut C ontrol A ccelerate C om pensation ( for *D -Jetronic onlyp2-25 )  p2-26  (m ) S ending "S etting" to EC U .       (n) D ata M onitoring W indow p2-27  

The chapters show n in a red character are going to translate into E nglish now .

(3 ) configure and sensor ajustm ent (a) S etting of close values and full open value of throttle sensor (b) T hreshold of Idle T hrottle . (c) A djust "M ap" to "Injector C apacity" & "Engine D isplacem ant.     (4 ) To start "M ap S etting" -- H Int of w ork (a) "constant" load(throttle) setting. (b) "(rapid)C hange T hrpttle" setting. < Asynchronous Injection> A ppendix. (5 ) (a) spec.

．．．p3-1 ．．．p3-3 ．．．p3-4

．．．p4-1 ．．．p4-3

．．．p5-2

* M icrosoft and W indow s are registered tradem arks in the U nited S tates and other countries of M icrosoft C orporation(U S A ).       

The chapters show n in a red character are going to translate into E nglish now .

(1) " P ro d u c t O u tlin e "  (a) E C U ex te rio r

Photo. " Fi" system ECU (Elrctronic Control Unit) 

C oupler :E C U 10P :10pins

ECU

C oupler :E C U 8P :8pins

C on ne cto r for co m m u nica tio n ca ble

E C U 8P ,E C U 10P : In case a coupler is connected, a m ain part is pushed in by hand until sound "C lick".  W hen disconnecting , couplers are pulled, after pushing in the button of the coupler upper part. B e c a re fu l n o t to c u t th e w ire o f it.  A com m unication cable connects only the cases at the tim e of an setting arrangem ent etc. w ith P C serial port by the cable contained in this products. In addition, it can attach also in the state of pow er supply O N , or can rem ove.

1-1

   Photo : ECU has two display lamps.

Red : Information Indicator Lamp ( Same Function as Dial Controller Lamp) Green : Power Supply Indicator Lamp  T he lam p on the right-hand side of a photograph is a lam p of the red w hich perform s a system inform ation display. It is the display of an injection tim ing signal input, a system error, etc. D isplay function is alm ost sam e as dial controller lam p. (except a shift-up indicator function) * P le a s e re a d C h a p te r (f) " L a m p D is p la y F u n c tio n " fo r d e ta ils .. T he lam p on the left-hand side of a photograph is red lam p ,E C U pow er supply indicator, w hen the pow er supply is on.  W hen IG key-off, E C U pow er O F F is postponed only for betw een the change check of arrangem ent data. In this period an E C U pow er are supplied from "B ackup" w ire of system harness w hich is connected to battery plus term inal. A fter that, E C U is turned off and holding data does not need pow er supply.

1-2

 (b ) F u e l In jec tio n C o n tro l T he volum e of fuel is controlled in tim e of O N period of injector. V olum e(cc) = Injector flow rate(cc/m in) / 60 (sec) x Injector O N period (sec) B y the text after this, tim e of O N period of injector is called injection tim e. Y ou can set injection tim e to 32m sec at the m axim um in each cycle. Injection tim e is calculated as follow s. Injection tim e (Ti) = B asic Tim e(Td) x Startup C om pensation x W arm -up C om pensation x *A cceleration C om pensation + Injector D ead tim e *Speed-Density System O nly (*D -Jetronic version)

Y ou can set these com pensation values to "1.0" quickly w ith each enable/disable property on softw are.T he low er figure expresses control of injection.

B as ic T im e (M a p)

S tartu p Com p. (K s)

W arm up Com p. (K w )

*A cc el. Com p. (K d)

x

x

x

*S pe ed -D en sity S ystem O n ly (*D Je tro nic ve rsion )

Ti

Td

S tartu p Inje ction T im e

Ts

P lease R ead C hapter(e) about " D ial C ontroller."

T i / Ts C h an ge C o ntro l by R .P .M .

D ial C o nto lle r

+

F ue l Cut C o ntro l

R .P .M . L im itte r

Inje cto r D rive

A sy n ch ron o us Inje ction c on trol

T he outline of each control is explained in the follow ing page. *"D -Jetronic" is the registered tradem ark of B osh A G

1-3

" B a sic In jec tio n T im e " T h ro ttle - S p ee d C o n tro l V e rs io n (A lp h a -N ) T here is a m ap of injection tim e to the volum e of intake air determ ined w ith tw o param eters, the open angle of throttle and engine speed, in E C U , and the "basic injection tim e " is determ ined w ith reference to the m ap. E ven w hen the open angle of throttle and engine rotation speed take the value betw een axes, the injection tim e is com puted by com plem ent calculation. A n injection m ap can be edited from P C . T he axis of a m ap can be set up to 31 at the m axim um to each of the open angleof throttle, and engine rotation speed. It is possible to set up arbitrary num ber of the axis to the arbitrary axis value in this range.

S p e e d - D e n s ity C o n tro l V e rs io n (*D -J e tro n ic) T here is a m ap of injection tim e to the volum e of intake air determ ined w ith tw o param eters, intake m anifold pressure and engine speed, in E C U , and the "basic injection tim e " is determ ined w ith reference to the m ap. O ther control function is sam e as "T hrottle-S peed C ontrol". T his C ontrol M ethod is best for s u p e r c h a rg e d e n g in e(turbo,etc.). In a super charged engine version, intake m anifold pressure is detected to about 2 kg/cm 2 (1600m m H g). (N orm al version sensor is up to 800m m H g.)

* A ccelerate C om pensation is only for "*D -Jetronic". S ee D etai (S ection)

*"D -Jetronic" is the registered tradem ark of B osh A G

1-4

" C o m p en s atio n " P lease read C hapter 2 for details.

W a rm -u p C o m p e n s atio n (E n g in e T e m p e ra tu re C o m p en sa tio n ) T his is com pensating the lack of fuel evaporation and increase in volum e of air filled in engine w hen engine has got cold. S ta rt u p co m p e n s a tio n  T his is com pensation w hich increases fuel after starting of engine until it carries out stable rotation. S ta rt u p in je c tio n tim e T his is not a com pensation value. It is injection tim e w hich w ill be injected in a period until it becom es a rotation speed stable. A s y n c h ro n o u s in je c tio n tim e A synchronous injection is the function to perform com pensation injection, w hen change of the intake air volum e rapidly betw een the tim ings of synchronous injection. F u e l C u t C o n tro l In engine rotation speed over idol speed, fuel injection is stopped at idle throttle position. T his functions also as an idol R .P .M . lim iter. A c c e le ra te C o m p e n s a tio n ( fo r *D -J e tro n ic o n ly ) T his function correct a gap of the air / fuel ratio resulting from change of the intake pressure by acceleration or slow dow n. It differs from the asynchronous injection w hich perform s com pensation injection tem porarily that the volum e of synchronous injection is increased or decreased betw een a certain set-up cycles. *"D -Jetronic" is the registered tradem ark of B osh A G

1-5

 (c) O th e r C o n tro ls

" P u m p C o n tro l" T he pressure of fuel is required for fuel injection. T he in-line pum p is controlled from E C U .  In order to suppress useless consum ption of a battery, interm ittence according to required quantity is driven in the low rotation speed dom ain. T he P W M drive is perform ed in the high rotation speed dom ain. It is possible to perform a setup of a drive from P C connected w ith E C U . *E C U is not m easuring the pressure of fuel. P lease set up the param eter of E C U , looking at the pressure gauge attached to this products("F i S ystem set") so that required pressure m ay be obtained. " R e v o lu tio n S p e e d L im itte r" F uel injection w ill be stopped if it becom es m ore than the set-up rotation speed. Y ou can set it as arbitrary values from P C . " S h ift-U p In d ica to r" T he lam p w ith w hich the dial controller is equipped is turned on w hen it becom es m ore than arbitrary rotation speed. Y ou can use it as a shift-up indicator. *O p tio n " E x te n d e d In je c to r c o n tro l" E C U also C ontorols E xtend Injector for O xygen injection system (O ption). P lease read the description of an oxygen injection system for details.

P lease read C hapter 2 for details.

1-6

 (d ) O th er P a rts o f S y stem

" T h ro ttle b o d y " It is the throttle of a rotary valve. Injector, the throttle sensor, and the extraction m outh of intake pressure are attached to this.

" S ig n a l in terfa ce u n it " T his is the unit w hich m akes the signal for injection from an ignition signal. T his m akes 1 tim e of a signal to tw o rotations of a crank.

" T em p e ratu re se n s o r " T he elem ent for tem perature detection is enclosed. It attaches in the cylinder side and the tem perature of engine is detected.

" D ia l C o n tro lle r " T here are a dial w hich changes fuel injection tim e by one point tem porarily, and a lam p w hich displays inform ation in this. T he chapter(e) explains for details. " Fuel pum p " It is the in line pum p for fuel driven on the voltage of 12V . T he m axim um output pressure is about 4 kgf/cm 2. T he rated pressure of a system is 2.5 kgf/cm 2.

1-7

" F u e l p re ss u re reg u la to r " It attaches in the fuel piping. T his keeps the pressure of fuel constant.

" A c c u m u lato r " T his suppresses change of the output pressure of a pum p by w hich an interm ittent drive is carried out.

" P re s s u re s en s o r " T his detects the pressure of intake m anifold. T his sensor is only for "D -Jetronic system " S ensor of version for supercharged engine m axim um : 1600m m H g( about 2kg/cm 2 ) S ensor of version for norm al engine m axim um : 800m m H g ( about 1kg/cm 2 )

1-8

(e) D ial C o n tro ller Photo : Dial Controller

Fuel Contorl Dial

Information Indicator Lamp

" F u n c tio n " T he "D ial C ontroller" is equipped w ith the dial w hich can increase or decrease injection tim e (w hole m ap) tem porarily, and the lam p w hich displays the inform ation on E C U . It is possible to change injection tim e in the quite big range from 0.1 tim es to 1.9 tim es by the dial. A left rotation side is the direction of "rich" (upper scale 1-1.9 tim e), and a right rotation side is the direction of "lean" (low er scale 0.1-1 tim e). T he m inim um scale is 0.1. In addition, since a setup of the range corresponding to a dial can be changed into arbitrary values from P C , adjustm ent w idth can be m ade large (for exam ple, 0.05 tim e -4 tim e etc.), or it can be narrow ed (for exam ple, 0.5 tim es to 1.5 tim es etc.).

P lease read C hapter (f) for " Lam p D isplay F unction " details.

1-9

  T h e e x am p le o f u s e o f a " D ial C o n tro lle r" A lthough, as for a dial controller, only a prim itive setup of changing the w hole can be perform ed, according to a w ay, it can use for the arrangem ent of a m ap quite conveniently. T he follow ing is an exam ple of use of a dial.

(1)

A fter attachm ent "F i", w hen starting the engine for the first tim e, the engine can be started correcting a gap of the injection tim e of the original m ap w ith a dial. Y ou put engine into operation, turning a dial and changing various injection tim e first. Y ou look for a dial position so that engine m ay carry out stable rotation. A fter engine starts, you look for the position w hich engine strats m isfire by turning a dial. T hereby, you can know the "R ich" side lim it of the injection tim e, and the lim it by the side of "Lean". Y ou read the scale of a position w hich turned to the "R ich" side a little from the m iddle of those dial positions.Y ou can know that that is the best injection tim e near an idol. It is good for you to adjust the injection tim e of the idol area of a m ap w ith this value of a dial.

(2)

It m ay be good to apply the m ultiple value w hich corrected an idol's injection tim e also to the w hole m ap.

(3)

It is very difficult to touch a dial during a runnig, so you turn a dial before running and you run at a certain degree of throttle. Y ou run in the som e dial position and read the dial position w hich becom es the largest pow er. A nd you correct the injection tim e of dom ain, w hich you check on the m ap.

(4)

W hen decom posing a fuel piping system , it enables you to low er fuel pressure sim ply by continuing operating engine, w ith a pum p suspended. A t this tim e, it can low er to rem arkable low pressure by consum ption of fuel pressure w ith engine by turning a dial to a rich side w ith descent of fuel pressure.

1-10

(f) L am p D is p la y F u n c tio n T he red display lam p of an E C U and the display lam p on "D ial C ontroller" display the follow ing inform ation.

(1)

T h e d is p lay o f a n in je c tio n sig n a l in p u t A n injection pulse w ill be inputted into E C U if engine is rotated using a kick pedal or a cell m otor. W hen not engine starting, E C U perform s "O N " and "O ff" an inform ation lam p at every input of a signal. If engine starts, this display function w ill be ended. Y ou can know w hether the function of a signal unit is norm al by this display.

(2)

S h ift-U p In d ic a to r ( *D ial C ontroller lam p only) T he light is sw itched on w hen it becom es m ore than the engine rotation speed set up by control softw are (S W B ).

(3)

In je c to r w irin g d isc o n n e c tio n w a rn in g T he light is sw itched on w hen w iring to injector is disconnected. A lighting pattern is as follow s. 0.2sec ON OFF 1.2sec

(4)

P u m p w irin g d is c o n n ec tio n w a rn in g T he light is sw itched on w hen w iring to a pum p is disconnected. A lighting pattern is as follow s.( *N ote1 ) 0.2sec ON OFF 1.2sec

(5)

B a ttery v o lta g e w arn in g  T he light is sw itched on w hen the voltage of a battery becom es low too m uch. ( * N ote 1 and 2) A lighting pattern is as follow s. 0.2sec ON OFF 1.2sec

1-11

 

(6)

W a rn in g a t 1 0 0 % d u ty c y c le T he light is sw itched on w hen the injection tim e exceeds tim e w hile a crank rotates tw o tim es. T hat is, it m eans that only injection tim e as set up cannot be injected. U sually, although it is thought that such a thing does not happen, w hen this display com es out and engine is turning at " Lean", it m eans that the injection capacity of injector is insufficient. A lighting pattern is as follow s. 0.2sec ON OFF 1.2sec

(7)

S e ttin g m a p re a d in g e rro r w a rn in g E C U reads the m ap for control from a m em ory, w hen starting. T his w arning display is turned on w hen a m ap has an error. W hen this display com es out, a controller stops all control. W hen a w arning display does not disappear even if it reboots E C U after transm itting the m ap saved at P C again, please contact us. A lighting pattern is as follow s. 0.2sec ON OFF 1.2sec

1.2sec

*N ote1 W arning - V oltage & P um p P u m p w irin g d is co n n ec tio n w a rn in g and B a tte ry v o ltag e w a rn in g are detected only w hen the drive m ode of a pum p is "P ulse D rive ". T hey are not detected w hen the drive m ode of a pum p is a P W M drive. (H ow ever, they are detected at the tim e of starting of E C U .) *N ote2 B attery V oltage W arning B attery voltage w arning is turned on w hen it's voltage becom es less than 12volts. U sually, since it is norm al that the battery is m aintaining m ore than 12volts, w hen such a display com es out, please charge the battery prom ptly. S ince it is thought that the pum p drive cycle is too short (too m uch driven)w hen this display com es out frequently, I ask you to im prove a pum p drive setup. In addition, even w hen this display com es out, injection control does not stop. W hen it should becom e low voltage during a run, the fuel volum e of injection decreases by the fall of the pum p pressure. In this case, it is possible to run by turning a dial controller to a rich side and com pensating the insufficiency of the fuel volum e of injection.

1-12

(2) " T u to rial o f P C s o ftw a re [ S W B ]" T he setting value of E C U s, such as basic injection tim e and a com pensation value, is set up by the control softw are " S e ttin g W o rk b e n c h F o r W in d o w s" (the text after this describes " S W B " ) w hich operate w ith the personal com puter (*N ote1) of W indow s (*N ote2). N ext, the outline of how to use this control softw are is explained. *N ote1 ) A serial port is required for the personal com puter w hich uses S W B . W hen there is no serial port, w e recom m end you use of a U S B serial conversion adapter. *N ote2 ) W indow s98 S econd E dition, W indow s M e, W indow s2000, W indow s X P

(a) H o w to In sta ll P lease double-click S etup.exe in the folder corresponding to each version of W indow s. In W indow s2000 and W indow sX P , please double-click S etting W orkbench.m si. P lease com plete installation w ith reference to the m essage displayed on a screen. T he new est inform ation about the com bination of corresponding O S and setup file, and installation m ethod are indicated on the label of a C D -R O M case. P lease perform after a check. *W h en y o u in s ta ll, p lea s e b e su re to en d o th er ap p lic a tio n s .

Ic o n o f " S W B "

2-1

  (b ) O u tlin e o f " S W B "

"S W B " m ainly has the follow ing functions.

(1)

E d it " B a s ic In jec tio n T im e" S e ttin g s

p 2 -1 1

A setup of "basic injection tim e " is possible. It is possible to set the rotation speed axis and *throttle angle axis of the point w hich sets up "basic injection tim e ", as arbitrary values. It is possible to m ultiply the w hole setting m ap or arbitrary dom ains by a constant value. *In D -Jetronic, throttle angle axis changes intake pressure axis. (2)

E d it " C o m p e n s a tio n T a b le" S e ttin g s

p 2 -2 2

T he table of the follow ing com pensation coefficients can be edited. W arm -up C om pensation S tart up com pensation A ccelerate C om pensation ( for *D -Jetronic only ) (3)

C h a n g e E n a b le /D is a b le o f E a c h C o m p e n s a tio n

p 2 -1 8

Y ou can set these com pensation values to "1.0" quickly w ith each enable/disable property. (4)

E d it " S ta rt-u p In je c tio n T im e" S e ttin g

p 2-2 4

S etting of this function is also edited in the sam e w indow as edit of a com pensation table. (5)

E d it " A s y n c h ro n o u s In je c tio n T im e" S e ttin g

p 2 -2 4

S etting of this function is also edited in the sam e w indow as edit of a com pensation table. Y ou can stop "A synchronous Injecton " quickly w ith enable/disable property. (6)

E d it " F u e l C u t C o n tro l" S e ttin g

p 2-24

S etting of this function is also edited in the sam e w indow as edit of a com pensation table. (7)

E d it " R e v o lu tio n S p e e d L im itte r " S e ttin g p 2 -21 Y ou can change R .P .M . value of revolution speed lim itter.

(8)

E d it " S h ift-U p In d ic ato r ( In fo rm a tio n L a m p o f R e v o lu tio n S p e e d ) p 2 -2 1 Y ou can set the rotation speed w hich an indicator lam p turns on as arbitrary values.

2-2

(9)

E d it " P u m p C o n tro l" S e ttin g

p 2-1 9

 Y ou can set up the pum p control settings in "P um p S etting " w indow . (10)

C h a n g e E n a b le / D is a b le o f D ia l C o m p e n s a tio n o f " D ia l C o n tro lle r"

p 2-18

Y ou can disable the fuel injection tim e com pensation dial of a dial controller. W hen you use this product w ithout connecting a "D ial C ontroller", please set up "disable". (11)

E d it " H a rd w e a r C o n fig u ra tio n" T he follow ing setup can be changed in this w indow .  T hrottle bore and trottle sensor range. Injector flow rate (feed rate, cc/m in). Idle T hrottle position(% ). Injector reaction period(injector dead tim e,m sec). D ial C ontroller range. Intake pressure sensor (boost sensor) range. *S ince the item set up on this w indow is adjusted to the com position parts of this products[set], before shipping, you do not need to change those settings.

(10)

E C U D a ta M o n ito r

p 2 -2 7

Y ou can see the inform ation in E C U using a "data m onitor" function. A n updating cycle is about 1 tim e in 1 second.

(11)

R e a d s e ttin g s fo rm E C U a n d s a ve to th e file

p 2-7, p 2 -9 , p 2 -1 0 , p 2 -2 6

A setup read from E C U can be saved at a file. M oreover, a setup saved at the file can also be sent to E C U .

2-3

M em o

2-4

(c) S tart an d E xit S ta rt " S W B " P lease click [S tart] > [program ] > [S etting W orkbench] ,It w ill start 

T he 2nd "S W B " can be started w hen one "S W B " has started. F or exam ple, it is possible to edit a T he 2nd "S W B " can be started w hen one "S W B " has started. F or exam ple, it is possible to edit a m ap etc., com paring the screen of tw o "S W B ". H ow ever, since "S W B " does not take out m ap etc., com paring the screen of tw o "S W B ". H ow ever, since "S W B " does not take out w arning to saving to the sam e file in this case, be careful of m anagem ent of a file. w arning to saving to the sam e file in this case, be careful of m anagem ent of a file.

E x it " S W B " S W B w ill be ended w hen "end" button in the w indow upper part is clicked, or X buttons at the right end of an upper end are clicked, or "E xit" of a "F ile" m enu is clicked. A t this tim e,since the m essage w hich checks saving to the file is displayed w hen the read data has change, please click "save" or "cancel".

2-5

(d ) H o w to S e t-u p th e S e ttin g s -- " M ap "

T he flow of the w ork in the case of changing a setup is explained.

A fter starting, setting data is em pty in S W B . F irst, you need to read data from E C U or a file. In this tim e, you cannot choose any item s other than "O pen file" and "E C U > > S W B "

R ead from file

R ead from E C U 2-7

*(A ) W e recom m end you to save the data read from E C U bfore editing as m uch as possible.

2-9

A

N ext, you change the item of the purposes, such as basic injection tim e ,com pensation, pum p setup,etc. T hen, you save data or transm it data to E C U . K eep in m ind that change is not reflected in a setup in E C U until it "transm its."

C ahnge S ettings

2-11 ~ 2-23

*(B ) W e recom m end you to save data before transm ission at a file. S ince E C U reflects change in control im m ediately after transm ission, there is especially no necessity of restart engine.

to the file

S ave

A changed setup is saved at E C U , w hen IG sw itch is cut (w hen E C U is turned off). 2-10

S end to E C U

B

2-24

If the present setup is previously read from E C U before reading a setup from a file w hen If the present setup is previously read from E C U before reading a setup from a file w hen changing a setup read from the file and sending to E C U , only a part w ith change w ill be changing a setup read from the file and sending to E C U , only a part w ith change w ill be transm itted. T he function to transm it only a change part is convenient, w hen changing a transm itted. T he function to transm it only a change part is convenient, w hen changing a setup and arranging it one after another. setup and arranging it one after another.

2-6

(e) R e a d S ettin g s fro m E C U

Y ou connect a personal com puter w ith E C U by the attached com m unication cable first. S ince the w indow of "C O M P O R T " opens w hen a "receiving" button is pushed, please set up a port num ber and click the "O .K ." button. A m ouse icon becom es a sandglass display during reception, and S W B cannot be operated in the m eantim e. R eception takes about about 10 seconds. W hen the m essage of the com pletion is displayed after reception is com pleted, please click the "O .K ." button. T he port num ber of a serial port can be checked w ith " system property "w indow of a personal com puter. S ince S W B displays an error m essage w hen the w rong port num ber is set up, please click a [E C U > > S W B ] button again after clicking [T ool] > [O ption] of a m enu bar and clicking the right num ber of the "C O M P O R T " and the "O .K ." button. 

C onnect "C om m unication C able "

R ecieve from E C U button

" COM PORT" Window

C orrection of a "C O M P O R T " num ber

S ystem P roperty W indow

2-7

If reception of a setup is com pleted, it w ill becom e a screen display as show n in the follow ing figure.

D ate of Last U pdate

ID of E C U

ID of E C U and date of last update are displayed on a status bar. S tatus bar

*T ransm ission and reception of data w ith E C U are possible only at S W B corresponding to the *T ransm ission and reception of data w ith E C U are possible only at S W B corresponding to the version of each E C U . B e sure to use S W B set up from C D -R O M appended to the product, or version of each E C U . B e sure to use S W B set up from C D -R O M appended to the product, or S W B upgraded to the correspondence version. S W B upgraded to the correspondence version.

2-8

  (f) R e ad S ettin g s fro m th e F ile

If the "O pen" button in the w indow upper part is clicked, the dialog of "O pen F ile" w ill apear. P lease select a setting file to open and click the button "O pen." T he extension of a setting file is .sw p. W hen reading is com pleted and the m essage of "reading com pleted" w ill be displayed, please click [O .K .] button.

"O pen" B utton

"O pen F ile" D ialog

"R eading C om pleted"

*A setup of hardw are is saved at the setting file. T he data received and saved from E C U w ith *A setup of hardw are is saved at the setting file. T he data received and saved from E C U w ith different ID cannot be transm itted. different ID cannot be transm itted.

2-9

(g ) S av e S ettin g s to th e F ile

If a setup read from the file is changed or data is received, you can save those data at a file. E C U ID and last update of readed setteing are displayed on a status bar. A com m ent can be added to the file to save. F or exam ple, engine specifications, such as displacem ent volum e, a setting place, the feature of a setup, etc. can be w ritten in freely. W hen you click "F ile" > "S ave A s" from a m enu bar,S W B displays the dialog box of a com m ent input. (if you w ill carry out overw rite, please click "F ile" > "S ave" of a m enu bar.)

D ate of Last U pdate

ID of E C U

S tatus bar

W hen this dialog box is displayed and it is going to save a setup read from the file, the com m ent in the file saved at origin is displayed on the w indow . In the case of the data read from E C U , it is displayed as "N o C om m ent." Input a com m ent here freely and click the "O .K ." button. P lease click "O .K ." to save w ith the com m ent currently displayed. P lease click "C ancel" button, w hen a com m ent is unnecessary. In this case, a com m ent is saved w ith "N o C om m ent."  If "O .K ." or "cancellation" button is clicked in com m ent dialog box, the dialog box of "S ave file" w ill be displayed. P lease save file in arbitrary file nam es and folders.

S ave A s ...

C om m ent dialog box

Y ou can check com m ent of current setting at "file com m ent" in the "D ata P roperty "w indow , Y ou can check com m ent of current setting at "file com m ent" in the "D ata P roperty "w indow , displayed on clicks "edit" > "property" of a m enu bar. displayed on clicks "edit" > "property" of a m enu bar.

2-10

  (h ) E d it " B a sic In jec tio n T im e " S e ttin g s * In the case of the D -Jetronic version, please read "the throttle angle" as "intake pressure." H ow to change a setup of basic injection tim e is explained in this chapter. B asic injection tim e can be changed by the follow ing tw o m ethods. (A ) T he m ethod of changing a value for every point set up by the engine rotation speed axis and throttle angle axis. (B ) T he m ethod of m ultiplying "G ain" to every dom ain of throttle angle.

every point set up by the engine rotation speed axis and throttle angle axis.

(A ) " C h a n g in g a v a lu e fo r e v e ry p o in t" If the tab of "B sic M ap" is clicked, the screen of basic injection tim e w ill open.Y ou can change a value in the form of the w indow low er part. W hen you click button of "E dit R P M A xis" and "E dit T hrottle A xis ", the point of w hich you can edit "injection tim e " m oves. P lease m ove a point to w hitch you w ant to set up. T he current point is show n by blue circle. If button is clicked, a point w ill jum p to an axis of end. M oreover, w hen you delete the axis w hich becam e unnecessary or you new ly increase an axis betw een axes, please click button of each axis w indow .

the tab of "B sic M ap"

"E dit R P M A xis" and "E dit T hrottle A xis "

T he position of an axis can be adjusted w ith slider. Y ou can input a value directly to , and click "O .K ." button. In this case, you need to input a value betw een neighboring axes. Injection tim e settings of points in a plane at the selected R .P .M . axis are displayed on right side graph w indow .It w ill be good to set up referring to left side 3D display and right side 2D display.

2D D isplay (points in a plane at the selected R .P .M . axis )

Y ou can change injection tim e w ith the slider , can also put a direct value into box , and push "O .K ." button on "Injection T im e " w indow . "Injection T im e " w indow .

2-11

 

W hen the point of graph has exceeded the m axim um of a vertical axis in the result of editing injection tim e, please click "V iew " > "S tandard V iew " of a m enu bar. T he m axim um value of a veratical axis w ill be adjusted autom atically. M oreover, if "V iew " > "Z oom In" of a m enu bar is clicked, graph w ill be displayed zoom ing in low rotation speed and low throttle angle. T his is convenient w hen changing an idol dom ain.

click "V iew " > "S tandard V iew "

(B ) M u ltip ly in g " G a in " to e ve ry d o m a in W hen you click the "S et by G ain" button of the "Input M ethod" w indow , the w indow that has m any sliders for adjustm ent displays. P lease adjust a w indow position so that a m ap display is in sight, as show n in the right figure. (B -1) H ow to use m ultiplier ,"G ain" T he slider in a "w hole M ap G ain" w indow is used w hen m ultiply a value to the injection tim e of all points. In the "G ain of T hrottle R ange" w indow , the values in the right side of "throttle % " are the throttle angle of the degree dom ain boundary, and the values under sliders are m ultiplier to the points in their dom ain.

"S et by G ain" W indow

 T he injection tim e of the points in a dom ain betw een the both boundarys are m ultiplied by the values w hich are calcurated by values of both boundary using linear Interpolation. "Input M ethod"

w hole M ap G ain

A m ap shape changes w ith this adjustm ents on the graphs in m ain w indow . T his change w ill be decided if "O .K ." button is clicked. P lease click a "C ancel" button to cancel added change. It returns to the settings before a w indow is displayed. W hen w hich button is clicked, a w indow is closed, and a bordering setting value etc. returns to a default. T he "G ain" calculates based upon an injection setup before a w indow display as 1.0.

"G ain of T hrottle R ange" w indow

2-12

" C o m p e n s a tio n"

W a rm -u p C o m p e n s atio n (E n g in e T e m p e ra tu re C o m p en sa tio n ) T his com pensation is com pensating the lack of fuel evaporation and increase in volum e of air filled in engine w hen engine has got cold. Y ou can set the value to each tem perature points up to 3.5. U sually, 1.0 or m ore values are set to the tem perature of 70 to 80 degrees C or less.  

S ta rt u p co m p e n s a tio n  T his is com pensation w hich increases fuel after starting of engine until it carries out stable rotation. A t the tim e of engine starting, a setting value is determ ined from the table of this com pensation setup based on engine tem perature. A fter starting reduces a com pensation value at a fixed rate. C om pensation is com pleted w hen a value is set to 1.0. Y ou can set the value to each tem perature points up to 3.5.   R eduction value of com pensation is set in the low er side of com pensation w indow . tim e to recovery tem perature at

reduction value

T here is sw icth in right side of w indow .   W hen you click an upper sw itch, a reduction value increases. T hereby, the tim e to the com pletion of com pensation becom es short. C onversely, if a low er sw itch is clicked, the tim e to a com pensation end w ill becom e long. G raph expresses the com pensation end tim e in display tem perature and R .P .M .

2-23

S ta rt u p in je c tio n tim e T his is not a com pensation value. It is injection tim e w hich w ill be injected in a period until it becom es a rotation speed stable. It is not based on the angle of throttle, and rotation speed, but fixed injection tim e is set up for every point of each tem perature. S ince evaporation of fuel runs short w hen engine tem perature is low , injection tim e is increased.

A s y n c h ro n o u s in je c tio n tim e A synchronous injection is the function to perform com pensation injection, w hen change of the intake air volum e rapidly betw een the tim ings of synchronous injection. A synchronous injection tim e is set up to the point of the am ount of open angle change of throttle .

F u e l C u t C o n tro l In engine rotation speed over idol speed, fuel injection is stopped at idle throttle position. U sually, it carries out from a rotation speed som ew hat higher than idol rotation speed. S ince it is easy to carry out a stole w hen engine has got cold, a higher rotation speed is specified. In a right figure, for exam ple,at the engine tem perature of 70 degrees C or m ore, w hen a throttle is an idol position in 3500r.p.m or m ore, fuel injection is stopped. In 23degree C ,Injection is not stopped low er than 8000r.p.m . T his functions also as an idol R .P .M . lim iter.

2-24

A c c e le ra te C o m p e n s a tio n ( fo r *D -J e tro n ic o n ly ) T his function correct a gap of the air / fuel ratio by the follow ing reasons. a) R esponse delay of intake pressure sensor. b) T he difference in the fuel evaporation by the intake pressure at the tim e of acceleration or a slow dow n. (T hrottle open or close)

W hen T hrottle changes in the direction it opens, the volum e of fuel is increased. B ecause engine is changing in the direction w hose intakeair volum e increases and the value of a sensor is follow ing behind tim e. C onversely, fuel is decreased w hen a throttle changes in the direction w hich it closes. B ecause intake air volum e is changing in the direction decreasing and the value of a pressure sensor follow s later than it. In this com pensation, w hen a throttle changes, a value is set, and a value is increased or decreased gradually. C om pensation w ill be ended if a value is set to 1.0.

tim e to recovery

recovery tim e fro m "2" a t 2 00 0r.p.m .

sec

Y ou can set up the value to 0 to 5 tim es to the point of the throttle change speed of arbitrary acceleration or the slow dow n direction. T he value to increase, or the value to reduce is set up in a low er w indow . It sets up w ith this button. If an upper button is clicked, it w ill com e to return early, and if a low er button is clicked, it w ill com e to return slow ly. It differs from the asynchronous injection w hich perform s com pensation injection tem porarily that the volum e of synchronous injection is increased or decreased betw een a certain set-up cycles.

*"D -Jetronic" is the registered tradem ark of B osh A G

2-25

[ Data Monitoring Window ]

 Am ong the control param eters in EC U , the follow ing inform ation can be displayed on the screen of P C by using the com m unication. O pen rate of throttle, tem perature of engine, value of dial controller, and rotational speed of engine, voltage of battery, and injection tim e P lease connect EC U w ith the P C w ith the com m unication cable.  N ext, please operate "dow nload from EC U " referring to the chapter of " R ead S ettings from E C U ". W hen the reception is com pleted, please click "T ool" >> "D ata M onitor" of the m enubar. The data m onitor w indow is displayed. W hen "S tart" button is clicked, it starts displaying. The raw data of the sensor is displayed in the left, and the converted physical quantity is displayed in the right. An open rate of the throttle is converted into an open aria rate of throttle boa. T he open rate of the throttle used in the basic injection m ap is this open area rate. In throttle open rate and engine tem perature, P C converts into a physical num erical value w hen the engine speed is zero, and displays them by a red character. W hen the engine starts rotating, the value in w hich the conversion calculation is done w ith E C U is displayed in blue.

starting "Data monitor"

Data Monitor Window

Click "Start" button to display.

[ [FFoor rththe eDD-J-Je etro trov ve ersrsioionn] ] "intake "intakemmanifold anifoldpressure" pressure"isis added to the display added to the displayitem item. . OOnly nlyafter afterthe theengine enginestarts, starts, PPCCdisplays pressure value. displays pressure value. BBefore eforestarting,the starting,thevalue valueisis displayed displayedbybya ared redcharacter character asas"760". "760".

* Even if the dial controller's setting is "diabled", the num erical value displays the value of the dial. * After engine starting, som e param eters are displayed in red charactor.

2-27

O ther operations of S W B cannot be done w hile receiving the tim er. A right graph displays the position of referred m ap. T he graph can be cleared w ith the button of "G raph C lear". A fter the "com m unication" is stopped by "stop"button, the w indow can be shut w ith the "C lose" button.

In D-Jetro version "Aria Percentage" is changed "Manifold Pressure" .

2-28

(3) co n fig u re a n d se n so r a ju s tm e n t B efore use,it is necessary to do "H ardw are C onfiguration" and "M ap Adjustm ent" after E C U is installed to the vehicle. T hese settings are usually set w hen "FC design" ships it.H ow ever, the thing that shifts by engine vibration the idle adjusting etc. is expected. This chapter explains these adjusting m ethods. The set item . A s a hardw are configuration. (1) Setting of close values and full open value of throttle sensor. (2) Setting of threshold for idle throttle value judgm ent. A s an adjustm ent of the m ap (3) Adjustm ent by capacity of injector and displacem ent of engine.

[S ettin g o f c lo s e v a lu es a n d fu ll o p en v a lu e o f th ro ttle s e n s o r.]  EC U m ust convert from the voltage of the throttle sensor into an open rate of the throttle and refer to the jet m ap. The setting to w hich open rate the voltage of the sensor hits changes according to the installation position of the sensor and the operation angle of the throttle valve. It has usually adjusted it in "F C design" before E C U is shipped. H ow ever, it is likely to shift the overhaul of the throttle body or caused by loosening of the installation by the vibration under use. W e w ill explain the m ethod of adjusting this value here. (i) R e a d F u ll O p e n V a lu e  At first, please operate starting "D ata m onitor"( refer to "D ata M onitor W indow " chapter). O pen the throttle to the w ide(full open) lim it. w hen click "S tart" button, the com m unication begins. A fterw ards, please read the value of the throttle sensor (value of 0-255). If the value is 255 ,please loosen the sensor installation screw of the throttle body, and adjust to becom e a value that is sm aller than 254 w hile seeing the sensor value of D atam onitor.

Data Monitor Window

3-1

(ii) R e a d F u ll C lo s e V a lu e In the sam e w ay, please read the value at full close position. At this tim e, please rotate the idol adjustm ent screw until becom ing a position in w hich not the idol position but the throttle is com pletely closed. P lease read the value at the position in w hich the throttle is com pletely closed. (iii) S e t V a lu e to P C N ext, please set the sensor value to EC U ,according to the follow ing m ethods. P lease return to the m ain w indow , and click "T ool" >> "H ardw are configuration" of the m enu. opens. W hen the m essage is displayed, click "C ontinuation" button, please. "E C U C onfiguration" w indow The value is set to the fram e of "Throttle body" on the left top of the w indow . P lease input the sensor value of full open throttle to the box of "S ensor value of full open". W hen the button of "M anual" in the right of the box , "S ensor value of close" is clicked, the input w indow opens. P lease input the sensor value of full close throttle here, and click the "O K " button. w hen the m essage of "Value is incorrect" is displayed ,the input value m ay be w rong, please try again from the step,"the full open value". T he input of "Throttle D iam eter" is arbitrary. P lease use it as a m em o of the setting(M ap). (iv ) T ra n s m it to E C U P lease confirm the connection of the com m unications cable, confirm the pow er supply of E C U is turning on, and click the "P C >>EC U " button. The m ouse icon becom es an "hourglass" display w hile transm itting, and, m eanw hile, S W B cannot be operated. It takes about ten seconds to transm it. The m essage of "C om plete" is displayed w hen the transm ission is com pleted and click the "O K " button, please. The pow er supply is turned off. EC U m aintains the pow er supply w hile w riting the setting, and the pow er supply cuts afterw ards.

3-2

 

"Fi" Fuel Injection System "Fi" Fuel Injection System Electronic ElectronicControl ControlUnit Unit Instruction Manual Instruction Manual

MMay, ay,2001 2001First Firstedition editionissue issue January, 2003 V er.4 January, 2003 V er.4 February, February,2006 2006VVer.4 er.4EEnglish(U nglish(Under ndertranslation) translation) FC FCDDesign esignCCo.,Ltd. o.,Ltd. 2-1-48-1F , H onm achi, Fuchucho, 2-1-48-1F , H onm achi, Fuchucho,Akigun, Akigun, HHiroshim a, Japan post code 735-0006 iroshim a, Japan post code 735-0006 Tel Tel +81-82-287-0211 +81-82-287-0211 Fax +81-82-287-0212 Fax +81-82-287-0212 http://w http://wwwww.fc-design.com .fc-design.com EE-m ail:info@ -m ail:[email protected] fc-design.com CCopyright opyright(C(C) )fc-design fc-design