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Control system for exhaust gas recirculation system

  • US 6,209,530 B1
  • Filed: 03/01/1999
  • Issued: 04/03/2001
  • Est. Priority Date: 07/03/1997
  • Status: Expired due to Fees
First Claim
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1. A control system (81) for an exhaust gas recirculation system (10) having two or more actuating devices, said control system (81) comprising:

  • an engine controller (80) adapted for receiving two or more engine operating parameter inputs (88,90) and providing two or more actuator control output signals (108,132);

    a first actuator (84) coupled to said engine controller (80) and having an input for receiving a first actuator control output signal (108) from said engine controller (80), said first actuator (84) further connected to a first actuating device of said exhaust gas recirculation system (10) and adapted for controlling said first actuating device in response to said first actuator control output signal (108);

    a second actuator (86) coupled to said engine controller (80) and having an input for receiving a second actuator control output signal (132) from said engine controller (80), said second actuator (86) further connected to a second actuating device of said exhaust gas recirculation system (10) and adapted for controlling said second actuating device in response to said second actuator control output signal (132); and

    wherein said engine controller (80) is adapted to generate said second actuator control output signal (132) based on said engine operating parameter inputs (88,90) and said control signals associated with said first actuator (84).

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