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Operation of power electronics during battery communication loss

  • US 10,286,899 B2
  • Filed: 11/16/2016
  • Issued: 05/14/2019
  • Est. Priority Date: 11/16/2016
  • Status: Active Grant
First Claim
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1. A method of controlling an electric powertrain comprising:

  • in response to an absence of a state of charge (SOC) value of a battery broadcast by a battery module at a periodic interval,limiting net power flow of the electric powertrain to maintain the SOC value to within a predetermined range that is based on a predicted SOC value of the battery,diverting power between an accessory high-voltage load and the electric powertrain such that a change in power flow is minimized, andcommanding an electrical generating machine torque of the electric powertrain at an angular speed to a power equal to provide power propulsion demand and parasitic losses of the electric powertrain to diminish a change in net battery power.

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