Hybrid Car – More Fun with Less Gas

Regenerative braking.

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Posted by harry on August 16, 2009, 7:29 pm

Anyone know how regenerative braking works on a petrol engined car?
 I see the BMW MINI has it.

Posted by news on August 16, 2009, 8:07 pm

On Sun, 16 Aug 2009 12:29:40 -0700 (PDT), harry

I don't know how the MINI does it, but there is a hydraulic
regenrative braking system for bigger trucks (10,000lb GVW and
higher).  It uses the braking energy to pump hydraulic fluid into a
reservoir at high pressure, then uses the stored, pressurized
hydraulic fluid to drive a hydraulic motor to assist with start-up
acceleration.  It's supposedly able to capture and re-use 70% or more
of the braking energy.


Posted by Michael B on August 17, 2009, 4:49 am

Is that the one set up to engage as soon as the gas pedal is
no longer being pushed? If it is, that would be annoying.

Posted by harry on August 17, 2009, 6:48 pm

No, though it has that as well.  If you stop, the engine is switched
off after a few seconds and is started when you press the accelarator.
Bit about it here.

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