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Plug-in Hybrid Electric Vehicle

  • US 20130066499A1
  • Filed: 09/11/2012
  • Published: 03/14/2013
  • Est. Priority Date: 09/14/2011
  • Status: Active Grant
First Claim
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1. A plug-in hybrid electric vehicle with a propulsion system comprising:

  • an internal combustion engine driving a pair of wheels on a first axle and having a crankshaft;

    a transmission drivingly connecting the internal combustion engine and the wheels on the first axle;

    a starter-generator mounted on the internal combustion engine crankshaft, between said internal combustion engine and the transmission;

    at least one electric motor driving the pair of wheels on the first axle;

    a main battery pack connected to at least one further electric motor arranged to supply electric power for driving wheels on a second axle;

    a power electronics unit connected between the main battery pack and the at least one further electric motor and arranged to convert electric power from the main battery pack from a first voltage to a second voltage;

    wherein the power electronics unit is further connected between the main battery pack and the starter-generator and arranged to supply electric power for starting the internal combustion engine; and

    a first transformer unit connected to the main battery pack and arranged to supply a charging current to the main battery pack when connected to an external source of electricity,wherein the vehicle further comprises at least one additional battery connected to the starter-generator and arranged to supply electric power for starting the internal combustion engine.

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