Hacker News Reader

Comment by amluto | Hacker News Reader

Unless the Model 3 is very different from the other Tesla cars, there is no such tradeoff. In a Model S, regenerative braking is triggered by releasing the accelerator pedal. Mechanical braking is triggered by stepping on the brake pedal.

I assume that Tesla just screwed up the antilock breaks. If you push the brake pedal all the way down on a dry road, you’re supposed to get full braking power by a mechanical linkage. No software needed.

View on HN

In a Camry Hybrid, the "tachometer" has a charging section, to show how much of the regeneration you're using when braking. Above the crawl speed, it also trims the car speed as regenerative braking. Pressing the brake pedal increases regenerative braking - up to maximum, and engages the mechanical brakes at some point.

I'd hope Teslas aren't wasting all of their stopping energy as brake heat, and instead regain some through regeneration as well. Ideally, both braking systems would be combined to maximize stopping ability. However not combining them might explain the Model 3's abysmal (longer than an F-150!) stopping distance.

> antilock breaks.

Break is what the car does when the brakes don't work. Petals will be on the flowers if you don't press the pedal. English is fun.

Toyota and Tesla do braking completely differently. Tesla has one pedal driving, same as the Bolt. Taking your foot off the accelerator does regenerative braking. Pressing the brake pedal also engages the mechanical brakes.

>> antilock breaks

antilock brakes

Reply on news.ycombinator.com