VW start stop hack

[oldtamiyaphile]

Originally Posted by ar5boosted

The Stop/Start system would be interesting to have even on non-vw cars. So whatever algorithm you came up with for that could be a generic template for other cars.

To me, I would pick gps based start-stop. Because many logic-assumptions would be based on things like distance to the next traffic lights and current speed, are you going up a known incline or down.

What you're talking about is more like automated hypermiling.

Here's what a current basic OEM Stop/ Start algorithm looks like:

For Speed = or < 8km/h, clutch = up, gear =neutral, battery= full

THEN

Stop

(there are a few more overides like reverse gear selection and cabin temp)

There's always going to be a situation where doing thing like light detection fails, like the main light is red, but you're turning on a green arrow or give way slip lane, or it picks up a light from a set ahead of you (closely spaced lights), or the light is up hill and you actually need to use the engine,or you've anticipated the red from 1km away or a reflection of a red dot on a truck, a high mount brake light etc etc.

Way too many variables when you could just fit a switch.