nice features to have "request"

[dnb]

might be worth trying a kalmann filter on the lambda input into EGO correction so it accurately predicts the error coming up based on previous errors.

It already uses a Kalman filter in the lambda smoothing.  It is admittedly a very simple one based on coping with the limited stats, the differing modes of operation it is required to cope with, and the integer precision.  There are features designed in already to do things like limit the history of the smoothing under certain conditions.

I would guess there's little to be gained by predicting the EGO for a cycle since the covariance would be large in comparison to the actual error given the lack of decent stats etc - before you knew what was happening you'd be running multi-hypothesis filters and consuming an awful lot of processor!

[fphil]

Another features    Smoothing the idle threshold.

I may be wrong, but the idle value one defines by the option "Control enable, Max TPS Value" is a hard threshold, yes/no.

So:
- when the throttle position is about that value and the rpm is over the overrun band , then, because of the noise on the TPS, the engine mode may toggle between idle/not idle and the fuel cut between on/off
-  when the ignition idle control is commanding an ignition retard of the max enabled value say 8° during a deceleration,  a slight move of the tps above the idle threshold leads to big change for the spark angle and for the engine torque.

There are several solutions which can improve these concerns however they mostly depends on the fw implementation.

Philippe

[Sprocket]

Leading on from that, a lot of modern car have an increase in target idle by about 75-100rpm when wheel speed is detected.

[gunni]

CAN .

Will the Auxiliary box have CAN? If so I would like to request that the CAN setup is similar to the Link one, its very easy to make new messages and calibrate the results.

To many ECU's are just way to complicated or trouble some when it comes to CAN setups. Also CAN streams made should be exportable as .xaml files to share with others.

Todays ECU simply must have CAN, VEMS can be no different.

[VEMS]

Hello Gunni,

Will the Auxiliary box have CAN?

Yes.

Best regards, Dave

[Leonhard]

Thoughts about advanced safty features

Overboost

the boost limit action is a fuelcut that works immediately...but it's brutal. A small MAP range before the limit, with reducing boost refDC to zero, would soften this threshold.

Advanced knock action

the current knock action is based on ignition retard and increasing fuel. If knock isn't cured this way and remains, there is no further safty action left.
My request would be a time-threshold for permanent exceeding "knock mean value" with the effect of reducing "boost refDC" to zero.

Also a faulty cylinder detected by "individual power" could lead to reduced load (boost refDC) preventing further damage.

Thanks

[Sprocket]

Misc 1 and Misc 2 outputs hysteresis setting


Theshold hysteresis. Only one hysteresis, but selectable for either MAP, RPM or temperature dependent on application perhaps?

For example. We enable water methanol injection primaraly based on MAP. Currently when MAP is at theshold, the output flutters on and off rapidly.

We also enable a supercharger bypass solenoid based on MAP. This too flutters on and off when at threshold threshold.

[Sam8888]

It'd be nice to able to change the launchcontrol RPM limit in the VEMSDisplay app, or by attach a variable resistor to one of the inputs.

[VEMS]

It'd be nice to able to change the launchcontrol RPM limit in the VEMSDisplay app, or by attach a variable resistor to one of the inputs.

See anytrim: http://vems.hu/vt/help/v3/v3_anytrim_control.html launch(rpm) adjustment.

[Sam8888]

Someone could explain this to me.  ???
Sry, but im a newbie, and the documentation isn't too detailed.

[Kamuto]

hope one day vems will have features like this :D

Injector Drives 16 Low/High Impedance
Ignition Drives 12 Internal Clamp
PWM Outputs 15 (10A)
Relay Outputs 8 (1A)
H-Bridge Drivers 2 (6A)
Moog Drives 2
Crank Sensor Type Twin Hall Effect / Inductive
Cam Sensor Type Hall Effect / Inductive
Analogue Inputs 25 General Purpose
2 UEGO Lambda
4 K-type thermocouple
6 x Knock Sensors
Digital Inputs 15 General Purpose
Switch / Load Cell /Rotation
6 Internal Sensors 5 ECU Temperatures
Battery Voltage
Communication RS232 and 3 x CAN 2.0B
Data Throughput 2000 Hz
Engine Configuration 1 to 12 Cylinders
Natural
Forced Induction
20000 rpm maximum

[VEMS]

Hi Kamuto,

You mean the specs of the Pectel T10S-F ECU ? Would you still like them if we asked their prices too ?

Best regards, Dave

[Kamuto]

Hi Kamuto,

You mean the specs of the Pectel T10S-F ECU ? Would you still like them if we asked their prices too ?

Best regards, Dave

i know the price :D just got bored waiting something new from vems ;)

[VEMS]

i know the price :D just got bored waiting something new from vems ;)

But the Pectel T10S-F ECU system specs are very good indeed.

[Kamuto]

i know the price :D just got bored waiting something new from vems ;)

But the Pectel T10S-F ECU system specs are very good indeed.

interesting how it looks from inside :) yes, very good :)