zlacker

[return to "Only 7k Miles? EV Owners Not Happy About Tires Not Lasting Long"]
1. london+Q7[view] [source] 2024-01-27 21:56:48
>>LinuxB+(OP)
Tyre damage is almost entirely caused by tyres slipping.

EV's could easily have a 'make tyres last longer' mode which prevented tyres slipping entirely by reducing power in all situations where the tyres are likely to slip.

The car has accelerometers in, and knows fairly precisely the downforce on every wheel, and has a reasonably good guess at the road surface, so should be able to make a pretty good guess at what point tyre slippage is likely to happen, and can then keep torque slightly below that the vast majority of the time.

As a bonus, if you can do this perfectly, you actually get more acceleration, since the coefficient of static friction is higher than the coefficient of dynamic friction for nearly all surfaces.

◧◩
2. huijze+Ta[view] [source] 2024-01-27 22:20:39
>>london+Q7
Ah so traction control plus surface grip estimation via cameras? Current traction control is already pretty good though.
[go to top]