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Control device for final control elements of an internal combustion engine, control unit for actuator drives of an internal combustion engine and a method for controlling an internal combustion engine

  • US 6,606,552 B2
  • Filed: 05/30/2002
  • Issued: 08/12/2003
  • Est. Priority Date: 11/30/1999
  • Status: Expired due to Fees
First Claim
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1. A control device for final control elements of an internal combustion engine having sensors sensing at least one measured variable, an incremental crankshaft angle sensor having an increment number and supplying a measurement signal having pulses, final control elements, actuator drives connected to the final control elements, and a control unit having a synchronizer for synchronizing counters and a control unit counter with a counter reading, the control unit at least in part driving the final control elements with the actuator drives, the control device comprising:

  • a control command generator connected to the actuator drives and controlling the actuator drives as a function of the at least one measured variable, said generator generating control commands with setpoint counter readings for execution of control functions of the engine;

    a communications interface for exchanging messages with the control unit, said interface connecting said control command generator to the control unit;

    a revolving counter independent of the control unit counter and having a counter reading;

    dependent upon parameters including the pulses of the measurement signal of the crankshaft angle sensor; and

    independent from the increment number of the crankshaft angle sensor during a working cycle of the engine;

    said counter reading of said revolving counter and the counter reading of the control unit counter synchronized through the synchronizer of the control unit; and

    the counter reading of the control unit counter being dependent upon said parameters.

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