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Electronic throttle control

  • US 6,318,337 B1
  • Filed: 05/19/2000
  • Issued: 11/20/2001
  • Est. Priority Date: 05/19/2000
  • Status: Expired due to Fees
First Claim
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1. A throttle control apparatus in a vehicle having a throttle valve with a default position intermediate a fully-closed position and a fully-open position, and a spring mechanism coupled to the throttle valve that creates torque to move the throttle valve toward the default position in the absence of other torque, the throttle control apparatus comprising:

  • an actuator for generating torque to open and close the throttle valve in response to a control signal, wherein the actuator is attached to the throttle valve by a mechanical coupling having lash; and

    a processor in communication with the actuator, the processor generating the control signal based upon a command signal, the processor executing a stored program including a portion to;

    (i) compare a new value of the command signal with a prior value of the command signal, and (ii) generate the control signal as a function of the deviation between the new and prior values of the command signal.

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