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Torque estimation method for an internal combustion engine

  • US 6,226,585 B1
  • Filed: 04/18/2000
  • Issued: 05/01/2001
  • Est. Priority Date: 04/18/2000
  • Status: Expired due to Term
First Claim
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1. An accessory load torque estimation method for use with an engine having an accessory, the method comprising:

  • learning engine torque based on an engine operating condition when engine torque is less than a predetermined value and the accessory is disengaged; and

    estimating a load torque of the accessory based on said operating condition and said learned engine torque when said engine torque is less than said predetermined value and the accessory is engaged.

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