MaxECU

XE164 Injector pulse measurement

2009-12-13T23:19:00.000+01:00

XE164 has to acquire, measure and sincronize to the INJ-in signals (one for each motorbike injectors).The best way is to use a dedicated XE164 peripheral: the CAPCOM2 unit.The CAPCOM unit is designed for capturing, measuring various signals in respect to a base timer. The idea is the following:- a timer is resetted and started once necessary (TIMER7)- various I/O port signals can be used to

MaxPowerCMD: the logic gates

2009-12-01T21:46:00.017+01:00

As anticipated, the logic gates have been added between the motorbike ECU Injector signal to the replicated Injector driver.I have defined it by defining the transfer function table, as:Once the transfer function have been fully defined, it is now possible to give some examples.Example 1: Injection Pulsewidth enlargementIn this case, the XE164 will set EN='1' just before that the real motorbike

Engine Management: Ignition Primary Circuits

2009-11-30T21:10:00.015+01:00

Before starting the real Injection system, is important to understand what is key and important to know.Let's start from the Aprilia Caponord ECU Injection system:Therefore each injection coil is connected to +12V directly and grounded via the ECU circuit, the ECU Injector driver circuit looks like this:The above picture represent a simple ECU circuit to drive the Fuel Injector. In essence, the

MaxPowerCMD

2009-11-28T15:41:00.018+01:00

Since my old Caponord need some "power injection" and that in any case the Traction Control need engine power adaptation, I thought is time to design my own Power Cmd.The basic idea is to build up an electronic system to be connected at ECU inputs (trottle position, engine RPM, engine speed, ...) and outputs (injector driving signals, ...) so to change the injections maps during engine

First Project (the simplest!) - Part 2

2009-09-13T18:24:00.003+02:00

After a long time I restarted playing with servomotors to control the intake air system ram. Here my latest achievements with servo motors: Stai tuned....

Weeling Display goes to PCB

2009-05-09T10:53:00.017+02:00

It's time now to create a real PCB for the Weeling Display, so everyone of you could create his own Weeling Traction Control.First of all, if you do not know, just have a look to the old posts:Display It!Display It! (Cont...)Display It! (Cont...)XE164 to Display connectionsAfter the debug and the "in circuit" test, I drawn the schematic using Eagle (Eagle 5.5.0), here you can see it:the above is

Some pictures

2009-05-01T12:00:00.002+02:00

Here the Weeling Box and display connected to the Yamaha R6:

Traction Control Connections

2009-04-17T11:29:00.003+02:00

Weeling in mounted on my Yamaha R6, I still have to decide how to operate the Traction Control and how to connect it to the byke ECU.Thinking and rethinking I had the idea to connect the traction control as the Electronic Shift units are doing. I found the following instructions:so, if I have correctly understood the idea is to cut the power supply of the fuel injectors or of the spark coils.Some

Yamaha R6 (2003 Model) Water Temperature Sensor

2009-04-10T15:40:00.012+02:00

Finally I was able to connect my "Welling" to the Yamaha R6 (2003 model) ECU in order to acquire the water temperature.I explayin how to do, looking to the Yamaha R6 electrical circuit manual, the water temperasture sensor (#23 in the picture) is directly connected to the ECU:Therefore is quite simple to connect it: just take a cable and solder it on the ECU connector G/W (Green/White- mainly is

Traction Control Settings (Con't)

2009-04-02T22:08:00.008+02:00

As promised, here it comes the debug... So, the only bug I discover was that in my calculation I have used 10-bit ADC resolution, but in reality the XE164 has 12-bit resolution (from 0 to 4095), so the only modification I did was to shift the value as: uiTmp = ( ADC1_RESRA0 >> 2 ); // Get latest Manettino valueMoreover I have added a piece of code to show on display the TC settings, the meaning

Traction Control Settings

2009-04-01T23:43:00.009+02:00

As you can immagine, I'm continuosly thinking on how to tune the Traction Control (TC). One idea could be to flash some key parameters or to control it more easily. Looking around I've seen this very interesting solution: (Bazzaz)I like since seems user frendly... I try to go for it!Step 1first is to select the adjustment switch: I go for a 10K potentiometer since it is cheap and I think it ca do

Accellerometers and traction control

2009-03-31T11:08:00.005+02:00

As my friend Fabio suggested, I should include some accellerator sensors to better perform the traction control.The task should not so difficult since there are many accellerometers on the market even for low prices. In particular, I think is better to look at those having a digital interface (i.e. IIC2 or SPI bus) instead of those having pure analogue output. Looking around I've found many but

XE164 KeyChain ERRATA

2009-03-30T14:21:00.001+02:00

Please take care that the KeyChain serigraphy of connector J4 is wrong: pin P04 is bottom-right and not top-left. the following picture try to explayin it:

How works CDI

2009-03-28T21:22:00.010+01:00

Since I need to modulate the engine power, I need to understand the CDI technology:Capacitor The Capacitor is the main component: in the fist phase it is charged whle in the second phase it is discharged trought the coil and the spark. Typically is value is from 0.47uF to 2µF . Switch The Switch element has the purpose to transfer the energy from the capacitor to the coil, typically it is

Elettronicamente.com

2009-03-28T21:00:00.000+01:00

Sito segnalato da:La risorsa Italiana per l'elettronica.

Traction Control (Con't)

2009-03-27T15:51:00.000+01:00

I did some researches in vision of the traction control: I look for POWER MOS capable to sustain high voltages....Here what I found (and get!!!):1. IPB50N10S3L-162. IPD50P03P4L-11Humm, not really useful for the CDI, the best would be to get:* IPP60R099CPA * IPP60R099CP available from Farnell... I think I should order from Farnel...

Weeling Project goes to Traction Control

2009-03-22T13:40:00.018+01:00

Since the Weeling Project is now working, I like to extend it with the Traction Control feature.The basic idea is to cut the torque each time the rear weel is spinning above a certain threshold (same threshold used for the blinking white LED).I've done some researches and I found out that one idea could to reduce the engine torque is to cut one cilinder spark firing.Let's start to understand how

Putting it together (Con't...)

2009-03-14T01:20:00.012+01:00

After one day on the race-track, I've try to understand the YAMAHA R6 (2003 model) ECU signals, these are the garage photos: after I have connected the new weels speed sensors: and the rear one: as is visible in the photo, the inductive sensor does not detect the metal braking disk (LED is OFF), when moving the weel it comes near by the metal the contact is activated (LED in ON): I also

Putting it together...

2009-03-01T07:32:00.006+01:00

It is time to put the pieces together.... even if all is not ready. The "XE164 to Display connections" post explayin how the XE164 is driving the Display module, now remains only to solder the connectors: I decided to solder connectors to the XE164 KeyChain board so to be flexible to replace it (you never know... and since I have not done any dedicated PCB, I'm afraid that I will need maintenance

Logger

2009-02-28T22:32:00.008+01:00

It is also time to use the internal Flash Memory for Logging various important parameters. In order to do this, I like to use the XE164 internal flash memory: in fact it has 3x256Kb flash modules and for my purpose one module could be enought:The SW becomes: // Update LOG data LogData.uiSpeed = uiSpeed; LogData.uiRPM_REAR = uiRPM_REAR; LogData.uiRPM_ENGINE = uiRPM_ENGINE;

XE164 to Display connections

2009-02-28T21:55:00.008+01:00

It is time to connect the XE164 KeyChain to the display. I start from the XE164 KeyChain schematic: it is published by Infineon at (also Eagle Layout is available). Based on this, I created the list of used I/Os (it is easier to show it instead of explayining it):One important note is to presenve the HWCFG[0] = HWCFG[1] = 1 otherwise the uC will not boot from internal flash memory (this I/Os

Display It! (cont...)

2009-02-28T21:45:00.011+01:00

Step by step I have also built an alluminium box for the Display...For the front panel, I have followed the instructions of some other blogger and I have created a front panel design:(I'm not so proud of it, but is a starting point...).I started drawing it, I printed on transparent paper and painted with White syntetic spray paint after having protected the two areas that must remain transparent:

Display It! (Cont...)

2009-02-08T13:02:00.016+01:00

Finally I added some LEDs on the 7-Segment display: a very bright set of 5 LEDs for the Weeling Flash indicator and a set of 5 standard red LEDs for the FUEL indication (if tank is empty, it should be ON).Due to the uC IO max current limitation (I mean, the fact that the uC could not supply more then 2mA per IO), I have inserted a NPN transistor (BC337). Here the electrical circuit:With very

Weeling Project (cont...)

2009-01-29T17:52:00.002+01:00

Finally I start to look in deep to the weeling ratio (I intend to buid an ECU capable to show me if rear weel is spinning by flashing a LED).The SW must do:6. LED must blink (flash) proportionally to the spinning ratio:slow spin -> LED is blinking slow high spin -> LED is blinking very fast The Angular speed is:while the Tangential speed is:where r (weel radius) can be derived from the weel

Weeling Project (Cont...)

2009-01-28T19:36:00.001+01:00

Recently I update the software adding the feature to store the odometer distance into the internal Flash.This are the added static variables:unsigned int uiDistanceTrip; // ODO meter distance (reset at SW start)unsigned int uiDistanceOdo; // Total Distance meter (stored in Flash memory)During the drive also the estimated distance is calculated multiplying the RPM by the weel circonference lenght/

XE164

2009-01-25T13:28:00.006+01:00

"Weeling Project" is progressing in different directions: speed sensor, display and software. The day by day learnng is forcing me to reconsider each day the project's decisions, forst of all, the selected uC. In fact the problem to use the XC164 USB stick is the limited number of avalable I/Os, so it is ok for small projects, but not for the "Weeling Project".Thanks to my friend Ronny, I got

Speed Sensor

2009-01-19T23:46:00.011+01:00

The Weeling Project requires to capture the Rear Weel and Front Weel speed (rotation per minute), therefore I had to think about a method to sense them.For the Rear Weel, there is no problem , since the bike alreay have a dedicated sensor that goes into the engine control unit (ECU), so, I just need a pick-up and a simple signal conditioning circuit: I think a 100kOhm and 2 diodes as protection

Display IT !

2009-01-10T12:33:00.018+01:00

Also during xMas holidays, I have worked on the Display hardware. Since my goal is to use "Weeling" in the race, I need to have something clearly readable: so I prefer to use "old-fashon" 7-segment LED displays and not LCDs. The LED displays are much more lighty, insensible to sun light (if mounted below a red coloured plexiglas glass) and glamour.I look around and I found the following proposed

Chrono Timer "Reverse Engineering"

2009-01-04T16:36:00.019+01:00

My friend Baldo ask me to check his chrono, so I took the time to perform some reverse engineering. Let's see what a chrono is: "digital chronometer which can determine lap times using a infrared transponder". Seems to be asy, but how it works?!? You must know that it is composed of two parts: the chrono has to be mounted on the bike and the transponder has to be placed in the pit-lane. A coded

Weeling Project (Con't)

2009-01-04T00:08:00.016+01:00

During xMas holidays, I've been thinking about my Weeling Project, I had the impression that something was not yet ok and also simulations show me that sometime the RPM calculaion is not precise enough. The Weeling Project goal is to show how much the rear weel is weeling (spinning) in respect to the front weel, but if the HW / SW would be not enough precise, I fear that all will be for nothing

Engine Considerations

2008-12-20T14:51:00.018+01:00

I'm sure that reading MaxECU you got the impression that something is not clear or is simply difficult to understand it.I try now to share my mechanic considerations: let's talk about the engine and the power transmission and tourque. I do not like to repeat what is already available in Wikipedia at: http://en.wikipedia.org/wiki/Horsepower (or in italian language: http://it.wikipedia.org/wiki/

DAvE Development Tool

2008-12-18T10:44:00.003+01:00

The Max ECU software development is done using the given Infineon DAvE tool.What is DAvE:DAvE is a graphical software generator to support CPU configuration and to generate the C files templates. It permits to configure each system's peripherals (timers, Watch-Dog, serial communication, CAN nodes, PWM, etc...), to configure the Ports (input, output) and the system frequency (with or without PLL,

Weeling Project

2008-12-13T20:16:00.031+01:00

Based on same HW (XC164CM, see "http://www.ehitex.de/p_info.php?xPD=113_117&products_id=264"), I intend to buid an ECU capable to show me if rear weel is spinning (or weeling: the project name) by flashing a LED. Moreover, this dedicated ECU would have a 7-segment display to show the current inserted Gear. In future I plan to add also a CAN node to communicate to other ECUs and dash-boards.The SW

First Project (the simplest!)

2008-12-08T22:58:00.032+01:00

My aim is to develop an ECU dedicated to control the intake air system ram.Short air rams allow fast intake, while long air rams allow slow air wave. Yamaha with its YCC-I, now available on R1 and R6, controls the air rams lenghts.As example, some R1 engine tests show:- long rams: at high regimes the output power would be reduced to 145,1 CV (at 10.250 rpm), while at lower regimes it is increased

The Bike

2008-12-07T16:43:00.005+01:00

Yamaha R6 (M.Y. 2003)Filtro by BMCScarico by Arrow titanio 4-2-1 con terminale in carbonioCandele by NGK iridioMonoammortizzatore by Ohlins TTXForcelle by JosuéPowerCommander by FerracciContamarce by GPRTubi Freno by FrentuboPedane e manettini regolazione forcelle by 4-racingTrasmissione by DID RacingCondotti Airbox in carbonio by VTRMOTOTappo serbatoio by ValterMoto

Intro

2008-12-07T16:15:00.000+01:00

Hallo to all,I decided to open a public Blog on self made Electronic Control Units (ECUs). My goal is to publish my experiments and results in order to keep trace of my own projects and to get the contribution of everyone.Get fun and feedback me !