DBW

[Ralle#67]

Hello,
I'm looking for the webinar on "Drive by Wire"
maybe someone has a link for me?
Regards
Ralf

[Stephen Dean]

Hi Ralf,

What sort of information are you chasing on DBW?

[Ralle#67]

Hi Stephen,
I want to adjust my throttle bodies.
Regards
Ralf

[Ralle#67]

The Offset position of Bank 1 is 0,473 V.
And the Offset Position of Bank 2 is 4,502V,
the Voltage absolute is also 4,502V.
I think this is not o.k.

Regards Ralf

[David Ferguson]

That could be OK. What happens when you move disconnect the motor and move the throttle blades by hand?

Do you have a logged data file showing the problem you are having?

[Ralle#67]

Thank you David,

When I calibrate the throttle at 4.5V I get error messages.
And if I open the throttle by hand and then calibrate, the ECU says the throttle is 100% open.

[Ralle#67]

S1_#13135_20220216_210450.ld

(1.28 MiB) Downloaded 340 times

I try to send an Log File.
Regards

[David Ferguson]

The log file isn't useful, but the copy of your M1 package it contains is.

In Calibrating the throttle bodies -- are you manually pressing the throttle plate fully closed, then highlighting the "Throttle Servo Bank x Position Sensor Main Offset" and pressing the "Q" key? That should set your 0% position, (currently at 0.473v for bank 1 and 4.502v for bank 2).

Then you highlight the "Throttle Servo Bank x Position Sensor Main Scale" hold the throttle blade vertical (or nearly fully open) and press the "Q" key. This should set the %/V to reach 100% using the current offset. Bank 1 looks like a reasonable 25.0%/v, but Bank 2 is 25.1 which can't be right, if you started at 4.5V, you would expect that sensor to go to a lower voltage, so the scale should probably be closer to -25%/v.

Did you press the "Q" for the correct bank, when the throttle was open? Or did you have the throttle open when you set the Offset for bank 1? That's why it's 4.5V instead of closer to .5V.

Your firmware package comes from MoTeC UK/Europe -- I would work directly with them to get you calibrated.

[Ralle#67]

Hello David,
thank you very much for your explanations.
The M 170 and the package are from Motec UK.
But unfortunately I have not received an answer to 2 inquiries by mail
Regards
Ralf Fischer

[Stephen Dean]

Hi Ralf,

When you sent the enquiries into MoTeC Europe, did you use the support @ moteceurope.co.uk address? and did you receive a confirmation email back? If you received a confirmation email back, could you please supply the ticket number so that I can look into what is happening with that ticket.