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
First Claim
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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Accused Products
Abstract
A control device for an internal combustion engine has a device for generating control commands for controlling final control elements in accordance with at least one measured value. The control device also has a communications interface for exchanging messages with a control unit for final control elements. A counter is also provided, the status of the counter being dependent on pulses of a measuring signal of an incremental crankshaft angle sensor. The control commands contain desired counter statuses for carrying out the control task. A control unit also has a counter whose counter status depends on the pulses of the measuring signal of the incremental crankshaft angle sensor. Also provided is a device for carrying out the control tasks in accordance with the counter status and the desired counter status.
52 Citations
13 Claims
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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:
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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. - View Dependent Claims (2, 3, 4)
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5. 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:
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a means for generating control commands connected to the actuator drives and controlling the actuator drives as a function of the at least one measured variable, said control command generating means 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 generating means 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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6. In 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, a control device for the final control elements comprising:
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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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7. A control unit for actuator drives of an internal combustion engine having a control device generating control commands for controlling the actuator drives, the control commands containing setpoint counter readings for execution of engine control functions, a communications interface for exchanging data with the control device, an incremental crankshaft angle sensor having an increment number and generating a measurement signal having pulses, and a counter with a first counter reading, the control unit comprising:
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a revolving counter independent from the counter and having a second counter reading;
dependent upon parameters including the pulses of the measurement signal; and
independent of the increment number of the crankshaft angle sensor during a working cycle of the engine;
a controller executing the engine control functions as a function of said second counter reading and the setpoint counter readings;
a synchronizer for synchronizing said second counter reading and the first counter reading; and
the first counter reading being dependent upon said parameters. - View Dependent Claims (8, 9, 10)
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11. A control unit for actuator drives of an internal combustion engine having a control device generating control commands for controlling the actuator drives, the control commands containing setpoint counter readings for execution of engine control functions, a communications interface for exchanging data with the control device, an incremental crankshaft angle sensor having an increment number and generating a measurement signal having pulses, and a counter with a first counter reading, the control unit comprising:
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a revolving counter independent from the counter and having a second counter reading;
dependent upon parameters including the pulses of the measurement signal; and
independent of the increment number of the crankshaft angle sensor during a working cycle of the engine;
means for executing the engine control functions as a function of said second counter reading and the setpoint counter readings;
means for synchronizing said second counter reading and the first counter reading; and
the first counter reading being dependent upon said parameters.
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12. In an internal combustion engine having actuator drives, a control device generating control commands for controlling the actuator drives, the control commands containing setpoint counter readings for execution of engine control functions, a communications interface for exchanging data with the control device, an incremental crankshaft angle sensor having an increment number and generating a measurement signal having pulses, and a counter with a first counter reading, a control unit for the actuator drives comprising:
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a revolving counter independent from the counter and having a second counter reading;
dependent upon parameters including the pulses of the measurement signal; and
independent of the increment number of the crankshaft angle sensor during a working cycle of the engine;
a controller executing the engine control functions as a function of said second counter reading and the setpoint counter readings;
a synchronizer for synchronizing said second counter reading and the first counter reading; and
the first counter reading being dependent upon said parameters.
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13. A method for controlling an internal combustion engine having actuator drives, which comprises:
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generating control commands for controlling the actuator drives as a function of at least one measured variable in a control device, the control commands containing setpoint counter readings for an execution of engine control functions;
transmitting the control commands to a control unit for the actuator drives;
changing a counter reading of a first counter as a function of pulses of a measurement signal from an incremental crankshaft angle sensor having an increment number, the first counter being a revolving counter with a maximum counter reading independent of the increment number of the crankshaft angle sensor during a working cycle of the engine; and
executing, in the control unit, the engine control functions predefined by the control commands as a function of;
the counter reading of the first counter;
the setpoint counter readings; and
a counter reading of a second counter independent of the first counter.
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Specification