Method for monitoring a door contact switch of a driver's door of a motor vehicle
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorsMatthias Eichin, Thomas Ohl, Bastian Luther
Life of this patent
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Abstract
A method for monitoring a door contact switch of a driver's door of a motor vehicle locked in an idle state includes detecting an unlocking of the driver's door of the motor vehicle, and detecting whether a change in a door contact signal of the door contact switch takes place after the unlocking of the driver's door. If a change in the door contact signal has been detected, a plausibility counter is initialized, otherwise the method includes detecting whether a drive unit of the motor vehicle is activated. A “door contact implausible” state is established and the plausibility counter (P) is incremented if the activation of the drive unit has been detected in step d).
Claims13
A method for monitoring a door contact switch of a driver's door of a motor vehicle in an idle state, the method comprising:
- detecting an unlocking of the driver's door of the motor vehicle using a control device,
- detecting whether a change in a door contact signal of the door contact switch takes place after the unlocking of the driver's door,
- initializing a counter (P) if a change in the door contact signal has been detected, otherwise
- detecting whether a drive unit of the motor vehicle is activated using the control device, and
- establishing a “door contact implausible” state associated with a corresponding suspected fault of the door contact switch and incrementing a variable of the counter (P) using the control device if the activation of the drive unit has been detected in step d);
- and
- evaluating, using the control device, the variable of the counter (P) so as to determine a defect in the door contact switch based on a magnitude of the variable.
A method for monitoring a door contact switch of a driver's door of a motor vehicle based on an idle state in which a drive unit of the motor vehicle is deactivated and the driver's door is either unlocked or internally locked, the method comprising:
- detecting an activation of a drive unit of the motor vehicle using a control device,
- continuing the method with method step a) if the drive unit of the motor vehicle has not been activated, otherwise
- detecting whether a change in a door contact signal of a door contact switch has taken place before the switch to the idle state, and
- initializing a counter (P) if a change in the door contact signal has been detected, otherwise
- establishing a “door contact implausible” state associated with a corresponding suspected fault of the door contact switch and incrementing a variable of the counter (P) using the control device;
- and
- evaluating, using the control device, the variable of the counter (P) so as to determine a defect in the door contact switch based on a magnitude of the variable.
Dependencies are inferred from the claim text.