×

Method of operating a vehicle and electric powertrain

  • US 8,502,410 B2
  • Filed: 02/04/2010
  • Issued: 08/06/2013
  • Est. Priority Date: 02/04/2010
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of operating a vehicle having an electric powertrain comprising a high voltage bus, an electric machine, and a traction inverter coupled between the high voltage bus and the electric machine, the method comprising:

  • said electric machine and the traction inverter generating an electric voltage for the high voltage bus when the electric machine is driven mechanically;

    limiting the generated electric voltage;

    converting the limited voltage to a predetermined voltage lower than the limited voltage; and

    powering a unit of the vehicle with said predetermined voltage;

    wherein the generated electric voltage varies, according to a sawtooth pattern, between two pre-given voltage levels.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×