EV regenrative braking

[McWigglebum4th]

All electric cars have some form of regenrative braking where the electric motor becomes a generator and recharges the battery pack.

This gives you something similar to engine braking in a normal car but to a much greater level.


So how would you prefer this to be controlled

With the throttle pedal so if you are at zero throttle you get max regeneration

Or with the brake pedal so the first part of the travel controlls regen braking before going further onto conventianl brakes

Yes Matt we know only 4 electric cars have sold in the history of the universe and renault is collasping next week due to the zoe

[alangla]

Bizarrely enough, when I drove an iMiev, it went into regen when you were at 0% throttle & brake, so you had something analogous to engine braking, but turned the regen off when you actually used the brake pedal. I much prefer the situation in the Prius where you get blended regen on the brake pedal & have the option to enhance the regen if you're descending a hill. One good trick the Prius does is that if you hit the top of the hill on the Northbound M77 near Silverburn at 50mph, then select extra regen with the brakes off, it'll descend at exactly 50 most of the way to the M8!

[anonymous-user]

Conventional cars have "braking" that occurs on the throttle pedal too, and it's dependent on engine speed (energy is lost to engine friction)


There is no reasons that electric cars couldn't just have one pedal tbh, but keeping with two is obviously more familiar.

There is a large cost saving to be had if all the regen is done via the accelerator pedal, in that you don't need to 'blend' the hydraulic service brakes and the regen braking. This means the hydraulic brake system can be simple and cheap. To that end i'd expect EV's to move towards full regen on a completely released accel pedal.

[Synchromesh]

I like the brake to be the brakes. Would rather have decent regen on a trailing throttle.

Given the majority of the population don't read the road any further than the end of their bonnet, I also think this would help people maximise range, as they wouldn't have to keep jumping onto the brake and wasting energy as friction.

[R26Andy]

Thinking aloud...if I come off the throttle and the brake effect is to severe, it will change my driving behaviour and I`m likely to just ease up and not come completely off then probably go straight for the brake pedal when I do eventually lift off. Therefore, max regen at throttle off is pointless.

[The Wookie]

Or another choice, what about a third pedal?

[McWigglebum4th]

The Wookie said:

Or another choice, what about a third pedal?

2 pedals to slow down only one of which stops the car quickly.


I can't see that being overly successful