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Coupled axle drive system for a vehicle

  • US 8,751,076 B2
  • Filed: 01/31/2011
  • Issued: 06/10/2014
  • Est. Priority Date: 02/05/2010
  • Status: Active Grant
First Claim
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1. A coupled axle drive system for a vehicle, comprising:

  • a first axle drive device for driving a first axle of the vehicle by a connected engine;

    a second axle drive device for driving a second axle of the vehicle, the second axle drive device having at least one electric machine for driving wheels of the second axleat least one energy storage device connected to the electric machine;

    a control device connected to the second axle drive device and to an engine control device or being part of the engine control device, the controller including a route simulator for determining which sections of a specified route should be driven by both the first and second drive devices to achieve quickest traversal of the route and applying power by the second axle drive device based on the determined charge state of the energy store to achieve uniform handling of the vehicle in each of the sections of the route in which the second drive device is actuated.

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