• Dec 26, 2008
Eaton, a company primarily known for making superchargers that make your vehicle go like stink, but guzzle even more gas, is also in the series hydraulic hybrid (SHH) business. The drive system in a hydraulic hybrid replaces the conventional drivetrain; the engine is effectively rendered a "pump" for the hydraulics, and energy is stored in two different accumulators that then power the wheels. Fuel savings of 50-70% are achieved by the system being much lighter than a traditional drivetrain, along with regenerative braking and the fact that the engine can be turned off when stopped and when decelerating.
The first real-world application of Eaton's SHH will be in a number of UPS delivery trucks next year. No auto manufacturer has any plans to create an SHH -- because of the lack of batteries, when the engine is cut off, electrical systems like the radio and climate control are also shut down. Eaten has a cooperative working agreement with the EPA to develop its hydraulic hybrid system, and has selected IBM to develop software to refine the system. Thanks for the tip, Gavin!

[Source: Eaton]


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    • 1 Second Ago
  • 10 Comments
      • 6 Years Ago
      A friend of our's had an old Cadillac that had hydraulic window lifts that he could crush beer bottle caps between the glass and the window frame. Late 50's early 60"s caddy I believe.
      • 6 Years Ago
      This is really, really old news - I saw the prototypes at Eaton around six years ago.
      • 6 Years Ago
      How many times do you get to report something before it actually happens?

      Also, Ford is experimenting with this for the f series.
        • 6 Years Ago
        Ford F-150 with 50-70% better fuel economy than current=my next vehicle.

        Even if they only do it on the F-250, it would still be pretty cool to get that kind of mileage.
        • 6 Years Ago
        I agree, this has to be the 6th time this has been reported between ABG and here.
        • 6 Years Ago
        @ Robert
        "Fuel savings will be in excess of 100% compared to today's drive trains."
        So... you will need to empty the fuel tank every once in a while?
      • 6 Years Ago
      "No auto manufacturer has any plans to create an SHH -- because of the lack of batteries, when the engine is cut off, electrical systems like the radio and climate control are also shut down."

      I don't get that line. In the link to the eaton site they say there is a diesel engine also.
      • 6 Years Ago
      I dont get the line either - system has to have 12v powering electrical systems in the vehicle, so what the issue with using electrical ac like current hybrids do?

      I mean if you cant have radio - that would mean that you wouldnt have standard 12v battery - is the vehicle then lacking all of modern electrical gadgets like electric windows, power steering, remote keyfob, etc, etc? Otherwise, that line makes no sense whatsoever.
      • 6 Years Ago
      UPS is looking to deploy this system in their package cars really soon. The technology is promising especially for vehicles that experience extreme stop and go like a majority of UPS vehicles do.