Method for monitoring a door contact switch of a driver's door of a motor vehicle
First Claim
1. 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, otherwisedetecting whether a drive unit of the motor vehicle is activated using the control device, andestablishing 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.
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Accused Products
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).
40 Citations
13 Claims
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1. A method for monitoring a door contact switch of a driver'"'"'s door of a motor vehicle in an idle state, the method comprising:
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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); andevaluating, 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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. 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:
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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; andevaluating, 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. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification