2022 Toyota Yaris - B mode

Dear Tom & Ray
In response to “What’s the “B” mode in a hybrid all about?” you’ve told Gayle that her husband has his head up his brake line, and then gone onto describe the regenerative braking system as increasing friction. This is clearly nonsense.

Are you able to describe how this system actually works, or do you not really know?

Is excess energy dumped to a resistor bank that requires extra cooling for example, or does it apply the brakes when the batteries are approaching their max state of charge?

That info was from 2009, many explanations available on the web.

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