OPD, car rolls backwards when stopping on downhill slopes (merged thread)

[NLMGSAN]

I'd be careful what you wish for. MG may tackle the problem simply by significantly reducing the regen level when in OPD mode.

It looks like that is exactly what has happened. They flattened the regen profile with the last part of the braking cut at 20%.
I will try to mimic this reverse drive effect next weekend.

 

[Howard68]

Definitely real. Happened to me twice today using OPD and coming to a halt at the base of a slope with light use of breaks and then releasing the break. Probably happened today because I was breaking more than usual because of wife in the car. The car felt like it went back a metre. Probably not that far in reality but several decimeters, not “a few centimetres”. So this has not been fixed in over a year? (In Australia in a late-2024 model Excite).

 

[Howard68]

@Rockstar this just happened to us on the weekend with our brand new MG HS + EV.
Within two days of ownership the vehicle shifted into reverse on three separate occasions while in Drive. Each time, the only way to correct the issue was to turn the car off and restart it. This issue was witnessed by my passenger and discussed in real time.

On Sunday night my husband was driving the car when it happened again. However this time the vehicle reversed suddenly with force, narrowly missing our child who was walking behind the car. The car then collided with our house

A brief search online indicates other owners of this car who have had similar incidents. So far, I have the names of 20 Australians who have commented on two MG Facebook pages, about this happening to them.

This is an extremely dangerous defect that could have resulted in serious injury or worse. Given the severity of the issue, I have requested the ACCC to investigate immediately.

Let me know if you had any response.
Thanks.

Were you using OPD?

 

[NLMGSAN]

Were you using OPD?

It looks like that is exactly what has happened. They flattened the regen profile with the last part of the braking cut at 20%.
I will try to mimic this reverse drive effect next weekend.

Forgot to report back. Steepest slope to test it is about 7% here. But only very short. I did need the breaks to get it stopped. Car did not reverse.
Regen did go all the way to 25 when breaking. So it looks like dropping OPD regen levels does not have an influence. Maybe it does if the slope is less steep and the car stops on OPD only?