Patent ID: 8355849

Claim:
A procedure for determining and monitoring a clutch position of a clutch which is arranged in a double clutch transmission of an automotive vehicle, said clutch comprising a clutch actuation system comprising an incremental path counter and said automotive vehicle comprising a control device including a functional module associated with operation of the vehicle and a monitoring module for checking safe operation of the vehicle, the procedure comprising: determining, using the control device and the functional module, a first clutch position by a referencing procedure for referencing the clutch and by a position determining procedure for determining the first clutch position; observing, using the control device and the monitoring module, a movement path of the double clutch during the referencing procedure; determining, using the control device and the monitoring module, a reference position; determining, using the control device and the monitoring module, a second clutch position, redundantly to the functional module, out of the count of the incremental path counter and the determined reference position; evaluating, using the control device and the monitoring module, the first clutch position as a non-safe clutch position if: the reference position determined and evaluated by the monitoring module is evaluated as non-safe; or an input signal indicates that the incremental path counter contains wrong values; or the value of the second clutch position determined by the monitoring module lies outside of a range; or the value of the second clutch position determined by the monitoring module leaps up implausibly, or the value of the first clutch position determined by the functional module and the value of the second clutch position determined by the monitoring module deviate too strongly from each other; or a referencing or plausibility check of the none-safety functions was terminated with errors; or, evaluating, using the control device and the monitoring module, the first clutch position as a safe clutch position if: the reference position determined and evaluated by the monitoring module is not evaluated as non-safe; and an input signal indicates that the incremental path counter does not contain wrong values; and the value of the second clutch position determined by the monitoring module does not lie outside of a range; and the value of the second clutch position determined by the monitoring module does not leap up implausibly, and the value of the first clutch position determined by the functional module and the value of the second clutch position determined by the monitoring module do not deviate too strongly from each other; and a referencing or plausibility check of the functional module was not terminated with errors.