Electronic throttle spring torque adaptation system

  • US 6,510,839 B1
  • Filed: 10/09/2001
  • Issued: 01/28/2003
  • Est. Priority Date: 10/09/2001
  • Status: Expired due to Term
First Claim
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1. A method for controlling a positioning device of an internal combustion engine, the positioning device having a spring bias torque, the method comprising the steps of:

  • providing an electric motor for actuating the positioning device against the spring bias torque;

    actuating the positioning device using said electric motor;

    learning a motor effort required to oppose the spring bias torque;

    summing said motor effort with a spring opposition term into a calculated control action; and

    controlling said electric motor based upon said calculated control action.

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