Drive by wire weirdness?

Drive by wire weirdness?

Author
Discussion

Mr Whippy

Original Poster:

29,924 posts

248 months

Thursday 19th October 2006
quotequote all
Had just jet washed my car (306 Hdi) driving down a dual carriageway and hadn't braked, so just left my foot lightly on the throttle while I pressed the brakes.
Just being curious I left my foot on and after around a second or so the engine just went dead, and I could put my foot right down on the throttle and it just made no difference to the engine output...

Is this one of those tampering drive by wire things? Seems a bit odd that it would sense you were doing that and cut the throttle back!?

Or could there be a reasonable reason for it I wonder... Hmmmm??

Dave

Mikey G

4,784 posts

247 months

Thursday 19th October 2006
quotequote all
My petrol Seat Ibiza would do that, first time i was pushing it a bit i left foot braked into a corner and found it didnt give me the desired effect i was looking for eek

Think it is a safety feature so as not to stress the engine or brakes.

groomi

9,323 posts

250 months

Thursday 19th October 2006
quotequote all
Or think of it as nannying control-freakery getting in the way of proper driving.

Mr Whippy

Original Poster:

29,924 posts

248 months

Thursday 19th October 2006
quotequote all
Indeed, in snow you can left foot brake a fwd to get a very rudimentary diff lockup so both wheels drive, to hell with that idea now

Might see if I can un-tick that box in my ECU software editing mission

Dave

GreenV8S

30,479 posts

291 months

Thursday 19th October 2006
quotequote all
Cutting the power when you touch the brakes seems like a common trick with drive-by-wire systems. It does seem common though that you can override this if you take your foot right off the throttle and then reapply while holding the brakes on, so left-foot-braking may still be possible, just a bit more awkward.