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Technology / Re: Does regenerative braking have a hazardous complication?
« Last post by Halc on Today at 15:15:50 »Maybe it's a rate thing? Is there a standard set by the industry to address this? ie slow down at more than a specific rate and that's regarded as "braking" and needs a warning light?A rate thing but also a suddenness thing. If I am gently engine-braking down a hill, it would be unsafe to have the brake lights on all the way. What if a deer suddenly pops in front? Now I hit the brake hard and the guy behind me takes considerably longer to react because my brake lights haven't changed state.
This effect BTW is the MO of insurance fraud traps, at least one of which I've been a target. Heavy dense traffic, but at speed, and the car ahead of me has brake lights on for some time without slowing. Suddenly when I'm close he hits it hard, hoping to cash in on my insurance. Didn't work. If I'm that close in heavy traffic, my foot is already hovering on the brake pedal, something I cannot do if the car is going to brake every time I take my foot off the accelerator.
My car (fully EV, Polestar 2) can be set to one pedal or two pedal driving; the former makes maximum use of regenerative breaking and I barely need to use the brakes.How does that work? Take your foot off and the car does full panic braking? Anything less and you either need to use that other pedal in 1-pedal mode, or you have to be really precise at all times as to the pedal pressure being applied.
How does cruise control work with 1-pedal systems?
If the brake lights are to come on at any level of regenerative braking, does cruise control need to put on the brake lights every time it goes down hill despite not slowing down?
Another note: How efficient is regenerative braking. How much energy is lost regenerating and then re-accelerating? How can an EV get decent range if it cannot just coast and allow a minor variation in speed?