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View Diary: Obama Administration looking to raise CAFE Standards to 56 mpg! (44 comments)

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  •  could even be a retrofit. (0+ / 0-)

    All of these vehicles (the old boxy Scion would be a good tradesman's micro-van too; sliding side doors would be helpful) are front wheel drive.   Therefore one could add wheel motors to the rear wheels, and run them off a battery that's recharged from the vehicle's electrical system.  

    With the right tweaks and interfaces, one could apply power to the rear wheels this way and let the IC engine coast while dealing with city stop-and-go.  The electric motors would basically serve to get the vehicle moving from each standing stop, to a speed of perhaps 5 - 10 mph, so they would not even need much of a battery pack.  

    •  That would be a major project (1+ / 0-)
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      since you'd have to replace the whole rear axel assembly.  There is no way to apply drive to the wheels as it is.  It would also be difficult to smoothly synchronize the engine start/stop, which is key to stop-and-go efficiency.  It's a very nice car as it is . . . I wouldn't want to turn it into a golf cart style jerkmobile.

      Both Honda and Toyota have the electric engine-assist motor technology pretty well worked out . . . it would have been easy on the vtec engine used in the initial Scions and the Toyota Yaris.  but it was a price-point car, and they were  pushing Hybrid upscale in the Prius (for $10,000 more at the time I bought the Scion) and they clearly didn't want to dilute the brand . . .

      I'll get another 10-15 years out of the Scion . . . by then they'll have something worth replacing it . . .

      Fake Left, Drive Right . . . not my idea of a Democrat . . .

      by Deward Hastings on Tue Jun 28, 2011 at 09:05:26 PM PDT

      [ Parent ]

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