Electric cars prove we need to rethink brake lights

Re:Electric cars prove we need to rethink brake lights by mindslight on Thursday May 25, 2023 @01:15PM (#36073384)

AFAIK ABS modules already have accelerometers. If I had to guess it falls into the domain of the ABS module, and it's just easier to talk about it as an accelerometer, when it's really using multiple inputs (wheel speed sensors can fail).

I hope whatever new regulation is intelligent enough to not consider the deceleration from coasting up a hill to be part of triggering the brake lights. Brake lights should only come on when there is deceleration beyond what you'd expect from a naturally rolling car.

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Re:Electric cars prove we need to rethink brake lights by Gordonjcp on Thursday May 25, 2023 @03:06PM (#36074710)

One would assume it's not a difficult process to model.

If the driver presses the brake, put the brake lights on.

If the driver lifts off the throttle in heavy regen mode and the vehicle slows faster than <some amount> put the brake light on.

If the vehicle slows faster than <some amount> with the throttle "off idle", do not put the brake light on.

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