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Front end motor-generator system and hybrid electric vehicle operating method

  • US 10,343,677 B2
  • Filed: 12/14/2016
  • Issued: 07/09/2019
  • Est. Priority Date: 12/14/2016
  • Status: Active Grant
First Claim
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1. A hybrid electric arrangement for an internal combustion engine having a front end opposite a rear end at which an engine flywheel is located, comprising:

  • a motor;

    a switchable coupling configured to be positioned in a region adjacent to the front end of the engine, the switchable coupling includingan engine-side portion connectable to a rotatable shaft at the front end of the engine,a drive portion selectively engageable with the engine-side portion, andan engagement actuator configured to selectively engage the drive portion with the engine-side portion,wherein at least a portion of the drive portion and the engagement actuator concentrically overlap one another axially along a coupling rotation axis;

    a torque transfer segment configured to transfer torque between the motor and the drive portion of the switchable coupling, the switchable coupling being coupled to a first end of the torque transfer segment and the motor being coupled to a second end of the torque transfer segment opposite the first end, the second end being located laterally offset from the coupling rotation axis; and

    a front end motor controller configured to control actuation of the switchable coupling between engaged and disengaged states.

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