Cruise control hack/modification?

[ArtFox]

Anybody found a way to modify the parameters for accel/coast on a cruise control? It would be great to devise a +/- 5mph so that hill climbing would gradually decel to your - 5mph setting. Also allowing the car to coast 5mph faster than the setting going downhill...

[ArtFox]

I guess one would have to wire in an inclineometer?

[RH77]

I just setup a governing block on the cam that pulls the cruise cable. Essentially, it will pull the throttle setting (in my case, a ~12% throttle limit) up to the set speed, and then on hills, modulate the throttle for the set speed as usual. If the limit is hit on a hill or in strong winds, the load-up/slow-down occurs. It overshoots the setpoint a bit on downhills, but not much. It's still good if you need to focus on other things, or are too fatigued to hypermile.

RH77

[getnpsi]

if the cruise is working off the vss maybe you can do some sort of altering on the feed from the vss to the cruise electronics.