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Improving auto efficiency

  1. Jun 20, 2008 #1
    Why can't we improve the efficiency (miles/gallon) of ICE autos?

    It seems to me there are two areas that can be used to add efficiency:

    1) Heat recovery with some form of a "bottoming cycle" to generate additional torque or electricity from heat lost in the radiator, and

    2) Breaking energy - generating electricity from engaging an alternator when the brake pedal is used, or maybe when the driver takes his foot of the gas. A lot of energy is wasted in breaking.

    These may be more important in hybrid vehicles where electricity is being used in a greater proportion of the fuel mix.

    Has anyone here looked at this?
  2. jcsd
  3. Jun 20, 2008 #2


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    Gold Member

    These are all good ideas. And they are already being implemented by various companies around the world. You might want to check the https://www.physicsforums.com/showthread.php?t=232274" for even more ideas.

    I'm working on a gas, steam, electric, pneumatic, hydraulic, spring, and flywheel hybrid vehicle. With pedals as an option of course.:smile:
    Last edited by a moderator: Apr 23, 2017
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