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My Toyota hybrid says it's charging the battery while coasting downhill: HOW????

If I'm touching the brakes, sure, regenerative braking shoul...
Hyperventilating bright puppy principal's office
  11/07/25
wow you’re really dumb
charcoal roommate
  11/07/25
does the gearing go opposite direction and generate electric...
confused weed whacker giraffe
  11/07/25
the gas motor itself charges the batteries. don’t need...
charcoal roommate
  11/07/25
No, the animation in the dash cluster shows the battery bein...
Hyperventilating bright puppy principal's office
  11/07/25
park the car for two hours in neutral and see what happens w...
charcoal roommate
  11/07/25
Keep spinning Jared
Hyperventilating bright puppy principal's office
  11/07/25
lol@ this fat dumb bitch thinking he knows the answer. It's ...
Hyperventilating bright puppy principal's office
  11/07/25
Aren’t you both Liberal
White Bonkers Voyeur Potus
  11/07/25
In a gas powered car you can downshift when going downhill a...
White Bonkers Voyeur Potus
  11/07/25
I know what engine braking is and it generates friction. Wha...
Hyperventilating bright puppy principal's office
  11/07/25
lol at nsam driving a Prius
Maroon Razzle-dazzle Corner
  11/07/25
Prius is the best car ever made
Hyperventilating bright puppy principal's office
  11/07/25
This guy gets it, but why is this better than frictionless c...
Hyperventilating bright puppy principal's office
  11/07/25
Get a load of this: your car can even MOVE ITSELF down a hil...
excitant factory reset button
  11/07/25
Imagine if your gas tank refilled itself every time you coas...
Hyperventilating bright puppy principal's office
  11/07/25


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Reply Favorite

Date: November 7th, 2025 12:29 AM
Author: Hyperventilating bright puppy principal's office

If I'm touching the brakes, sure, regenerative braking should charge the battery. But when my foot is off both pedals, the car should just coast like it's in neutral. How is electricity being generated at that time?

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409142)



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Date: November 7th, 2025 2:30 AM
Author: charcoal roommate

wow you’re really dumb

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409190)



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Date: November 7th, 2025 2:47 AM
Author: confused weed whacker giraffe

does the gearing go opposite direction and generate electricity?

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409194)



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Date: November 7th, 2025 3:26 AM
Author: charcoal roommate

the gas motor itself charges the batteries. don’t need to be in gear or in motion for that

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409198)



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Date: November 7th, 2025 6:35 AM
Author: Hyperventilating bright puppy principal's office

No, the animation in the dash cluster shows the battery being charged from the wheels not the engine you tard. The engine isn't even running when it's going downhill. Goddamn you're stupid

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409269)



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Date: November 7th, 2025 9:14 AM
Author: charcoal roommate

park the car for two hours in neutral and see what happens when the battery charge dips

hint: the wheels don’t have to move to recharge the battery

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409403)



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Date: November 7th, 2025 9:15 AM
Author: Hyperventilating bright puppy principal's office

Keep spinning Jared

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409410)



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Date: November 7th, 2025 6:35 AM
Author: Hyperventilating bright puppy principal's office

lol@ this fat dumb bitch thinking he knows the answer. It's RSF of course

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409270)



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Date: November 7th, 2025 7:24 AM
Author: White Bonkers Voyeur Potus

Aren’t you both Liberal

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409293)



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Date: November 7th, 2025 7:23 AM
Author: White Bonkers Voyeur Potus

In a gas powered car you can downshift when going downhill and barely use any fuel. The force of going downhill keeps the engine moving. You aren’t “in neutral” in an automatic or manual in that situation. Same principle in your hybrid. It’s using momentum to charge. And it takes more energy to go uphill than to climb a flat surface btw. What liberal art did you major in btw?

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409291)



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Date: November 7th, 2025 8:33 AM
Author: Hyperventilating bright puppy principal's office

I know what engine braking is and it generates friction. What is generating friction that recharges the battery when I coast in a hybrid? Is Toyota capturing waste heat from the tires?

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409337)



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Date: November 7th, 2025 7:23 AM
Author: Maroon Razzle-dazzle Corner

lol at nsam driving a Prius

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409292)



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Date: November 7th, 2025 8:35 AM
Author: Hyperventilating bright puppy principal's office

Prius is the best car ever made

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409339)



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Date: November 7th, 2025 9:18 AM
Author: Hyperventilating bright puppy principal's office

This guy gets it, but why is this better than frictionless coasting?

----

There is mild regen even when coasting (unless you actually switch the car into N) but obviously more if you depress the brake pedal.

Once the regen reaches the “off” line that’s when you know you’ve engaged the friction brakes.

I could do a deep dive into this as I find forced regen of any kind a detriment to efficiency, but I’ll suffice it to say this:

Coasting > regen braking > friction braking

https://www.reddit.com/r/rav4club/s/KhGhdzXROs

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409418)



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Date: November 7th, 2025 9:22 AM
Author: excitant factory reset button

Get a load of this: your car can even MOVE ITSELF down a hill without any gas! Cons??? Libs???

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409426)



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Date: November 7th, 2025 9:30 AM
Author: Hyperventilating bright puppy principal's office

Imagine if your gas tank refilled itself every time you coasted downhill

(http://www.autoadmit.com/thread.php?thread_id=5794500&forum_id=2Vannesa#49409458)