lulzfish wrote:qwerty_uk wrote:BiggAl wrote:I don't get the problem with the prius? surely people have heard of engine breaking? Just change down a few gears and you'll slow down as you let the clutch out - not sure how that would work with the hybrid stopping though - anyone here got a prius?
Actually, engine braking was part of the problem. When you press the (electronic) brake pedal lightly, it doesn't use the brakes at all, but uses engine braking whilst capturing the returned energy to charge the batteries. When you need to brake more, the actual brakes take over. It was the transition that was sometimes getting screwed-up, allowing the cars to cruse without brakes for a little while. At least that's what I heard.
No, engine braking is when you downshift and cause the combustion engine to rev up without getting extra fuel. The energy of braking goes into compressing air in the cylinders, but since there's not extra fuel to ignite it, it just disappears, and the car slows down.
In a hybrid vehicle, pressing lightly on the brakes applies regenerative braking, where the transmission is connected to one of the motors, which is used as a generator to slow the vehicle while recharging the battery.
I hadn't heard of a problem with the brakes, though, just with the electronic accelerators getting stuck.
Apparently there's a minor problem with the ABS where although it works it doesn't quite work as you'd expect.
But considering the fact that my car doesn't even /have/ ABS, I don't see what people are crying about...Toyota wrote:Some owners have reported experiencing inconsistent brake feel during slow and steady application of the brakes on rough or slick road surfaces when the anti-lock brake system (ABS) is activated in an effort to maintain tire traction.