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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...
bat-shit-crazy space
  11/07/25
wow you’re really dumb
cheese-eating scarlet stage
  11/07/25
does the gearing go opposite direction and generate electric...
stirring judgmental tanning salon
  11/07/25
the gas motor itself charges the batteries. don’t need...
cheese-eating scarlet stage
  11/07/25
No, the animation in the dash cluster shows the battery bein...
bat-shit-crazy space
  11/07/25
park the car for two hours in neutral and see what happens w...
cheese-eating scarlet stage
  11/07/25
Keep spinning Jared
bat-shit-crazy space
  11/07/25
lol@ this fat dumb bitch thinking he knows the answer. It's ...
bat-shit-crazy space
  11/07/25
Aren’t you both Liberal
maniacal dun box office elastic band
  11/07/25
In a gas powered car you can downshift when going downhill a...
maniacal dun box office elastic band
  11/07/25
I know what engine braking is and it generates friction. Wha...
bat-shit-crazy space
  11/07/25
lol at nsam driving a Prius
Curious Site
  11/07/25
Prius is the best car ever made
bat-shit-crazy space
  11/07/25
This guy gets it, but why is this better than frictionless c...
bat-shit-crazy space
  11/07/25
Get a load of this: your car can even MOVE ITSELF down a hil...
razzmatazz base people who are hurt
  11/07/25
Imagine if your gas tank refilled itself every time you coas...
bat-shit-crazy space
  11/07/25


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Date: November 7th, 2025 12:29 AM
Author: bat-shit-crazy space

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=2.#49409142)



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Date: November 7th, 2025 2:30 AM
Author: cheese-eating scarlet stage

wow you’re really dumb

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



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Date: November 7th, 2025 2:47 AM
Author: stirring judgmental tanning salon

does the gearing go opposite direction and generate electricity?

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



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Date: November 7th, 2025 3:26 AM
Author: cheese-eating scarlet stage

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=2.#49409198)



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Date: November 7th, 2025 6:35 AM
Author: bat-shit-crazy space

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=2.#49409269)



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Date: November 7th, 2025 9:14 AM
Author: cheese-eating scarlet stage

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=2.#49409403)



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Date: November 7th, 2025 9:15 AM
Author: bat-shit-crazy space

Keep spinning Jared

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



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Date: November 7th, 2025 6:35 AM
Author: bat-shit-crazy space

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=2.#49409270)



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Date: November 7th, 2025 7:24 AM
Author: maniacal dun box office elastic band

Aren’t you both Liberal

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



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Date: November 7th, 2025 7:23 AM
Author: maniacal dun box office elastic band

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=2.#49409291)



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Date: November 7th, 2025 8:33 AM
Author: bat-shit-crazy space

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=2.#49409337)



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Date: November 7th, 2025 7:23 AM
Author: Curious Site

lol at nsam driving a Prius

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



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Date: November 7th, 2025 8:35 AM
Author: bat-shit-crazy space

Prius is the best car ever made

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



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Date: November 7th, 2025 9:18 AM
Author: bat-shit-crazy space

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=2.#49409418)



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Date: November 7th, 2025 9:22 AM
Author: razzmatazz base people who are hurt

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=2.#49409426)



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Date: November 7th, 2025 9:30 AM
Author: bat-shit-crazy space

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

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