@GreenCrunch@piefed.blahaj.zone
Post #1521253
2026-04-22 02:19 UTC
Haha! Fool! My Prius knowledge is finally useful!
B mode is actually engine braking. Energy from the wheels is intentionally wasted to turn the engine (with valves timed to compress and release air, with no fuel). It’s there basically just for big downhills, to save your brake pads a bit. The Prius uses regenerative braking all the time with the brake pedal (unless the traction battery is full).
By the way, cruise control does use engine braking under a specific circumstance - again with downhills, if you’ve filled up the battery, preventing further regeneration, and it needs to slow down, it will use engine braking even outside of B mode.
Replies (4)
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@Assassassin@lemmy.dbzer0.com 2026-04-22 03:54
I am a fool! Thank you for sharing your knowledge, I didn’t realize I had been misinformed! Engine braking totally makes sense though.
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@drosophila@lemmy.blahaj.zone 2026-04-22 17:09
I didn’t know Priuses had jake brakes.
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@astropenguin5@lemmy.world 2026-04-22 19:52
Oh hey, I drive this era of Prius and I didn’t know that! Cool! Not that I have many downhill to use it on cuz I live in fucking indiana but y’know. Still cool to learn more about my car :D
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@astropenguin5@lemmy.world 2026-04-22 19:52
Oh hey, I drive this era of Prius and I didn’t know that! Cool! Not that I have many downhill to use it on cuz I live in fucking indiana but y’know. Still cool to learn more about my car :D