Hey there
I have a question about the concept behind the HAC feature in our car (i30 GD).
In my imagination (which also is congruent with the description in the german Wikipedia) a HAC should work like this:
- An inclination sensor detects that your car is on a hill
- You press the clutch and the foot brake
- You release the footbrake but the HAC keeps braking
- If you then engage the clutch the HAC detects the propulsion and releases the brake
But here is my experience how the HAC in the i30 actually works:
- An inclination sensor detects that your car is on a hill
- You press the clutch and the foot brake
- You release the footbrake but the HAC keeps braking
-
The HAC keeps braking for a certain amount of time no matter what you do with the clutch--> This leads to the situation that if you're too fast, you'll "push" against the brake and stall the engine (and if you're too slow you'd roll down the hill anyway)
Now my question to the i30 GD owner is: Does the HAC of the i30 really work in this "primitive" time-based way of which I think that I have experienced it serveal times now (by stalling the engine...) or is my HAC somehow defective and it should normally work in the "intelligent" way I described at the beginning.
If I knew how it's supposed to work I could adapt my hill-starting-style accordingly
