Thinking Of Buying A Pruis

[timberwolf]

When you press the brake pedal, the car uses a combination of regenerative and friction braking. Press the brake pedal lightly and the braking is going to be mostly regenerative. Press the pedal hard and regenerative braking alone isn't sufficient. Below about 7 mph on the Gen 2, it will be all friction braking as regenerative braking doesn't work effectively at very low speeds.

As I understand it, B-mode uses regenerative braking first and then if the Battery becomes fully charged it then switches to using engine compression with no or little fuel injected for I guess real engine braking.

[Fujisan]

The B position serves just like lower gears in a normal car, and it's really only there to slow the car when you will be descending a long enough hill that you would have to constantly apply the brakes. .

When you press the brake pedal, the car uses a combination of regenerative and friction braking. Press the brake pedal lightly and the braking is going to be mostly regenerative. Press the pedal hard and regenerative braking alone isn't sufficient. Below about 7 mph on the Gen 2, it will be all friction braking as regenerative braking doesn't work effectively at very low speeds.

As I understand it, B-mode uses regenerative braking first and then if the battery becomes fully charged it then switches to using engine compression with no or little fuel injected for I guess real engine braking.

Thanks

[johalareewi]

Does anyone actually use the B on the gear leaver, I read its for when you go down hills to charge the battery.

B mode doesn't boost charging the Battery - it throws energy away instead of storing it in the Battery.

For normal braking, the Prius uses the generator and friction brakes.

On a long downhill, the HV Battery can become fully charged so to avoid over charging, the Prius switches to friction brakes only (just like a normal car). This could cause the brakes to overheat and fade (not good) just like a normal car.

In a normal car, you would engage a low gear and use the engine as a brake to help the friction brakes out.

With the Prius, there is B mode which tells the Prius to use the engine as a brake as well as the generator and friction brakes.

In a nutshell, B mode is the Prius's version of 'engage low gear' for downhill descents.

Full details here...

http://www.techno-fandom.org/~hobbit/cars/b-mode.html

[Fujisan]

Full details here...

http://www.techno-fandom.org/~hobbit/cars/b-mode.html

Great link Thank you