Enova’s Unique Post Transmission Hybrid Drive System

March 13, 2007 Enova’s Post Transmission Hybrid System offers a very different way of looking at hybrid power transmission in automotive applications – it is a non-invasive system that requires almost no modification to chassis, body, or instrument panel. The system does not intrude on nor require any alteration to the Engine Control/Communication system, thus avoiding any emissions certification issues. The system monitors but does not impact anything within the existing engine and does not effect the existing engine calibration. The hybrid system can be designed as either a Charge Sustaining or Charge Depleting (“Plug In”) system. Depending on the route, fuel economy improvement is from 30% to 55% for a Post Transmission Charge Sustaining System, and 70-100% or better for Post Transmission Charge Depleting Systems. Perhaps retro-fitting hybrid systems to the existing national fleet might be the quickest way to reduce emissions.

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