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Electronically controlled throttle apparatus

  • US 20050092292A1
  • Filed: 10/29/2004
  • Published: 05/05/2005
  • Est. Priority Date: 10/30/2003
  • Status: Active Grant
First Claim
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1. An electronically controlled throttle apparatus comprising:

  • a throttle valve held rotatably in a throttle body, an actuator for driving said throttle valve, a return spring which gives a force to return said throttle valve in the full open direction, a throttle position sensor for detecting the opening of said throttle valve, and a throttle actuator control unit for driving said actuator based on the opening of said throttle valve detected by said throttle position sensor and a target opening, wherein said throttle actuator control unit is provided with a control means which controls said actuator, when EGR control or DPF control has ended, so that said throttle valve turns toward the full open position in a longer period of time than the length of time in which said throttle valve is turned toward the full open position by said return spring only.

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