×

System and method for coupled and decoupled engine starting in a hybrid vehicle

  • US 9,937,919 B2
  • Filed: 03/10/2016
  • Issued: 04/10/2018
  • Est. Priority Date: 03/10/2016
  • Status: Active Grant
First Claim
Patent Images

1. A vehicle having an engine with a starter motor and coupled by a first clutch to an electric machine, which is coupled by a second clutch to a step-ratio transmission, comprising:

  • a processor programmed to start the engine using the starter motor for a first engine start after vehicle key-on and if vehicle speed is less than an associated threshold, and using the electric machine if vehicle speed exceeds the associated threshold, the processor further programmed to release electric machine torque reserved for starting the engine to propel the vehicle in response to scheduling a subsequent engine start using the starter motor.

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