Crash detection when a motor vehicle is at a standstill
First Claim
1. A method for detecting whether a motor vehicle in a parked state and in a switched-off state has been hit or moved, said method comprising the steps of:
- transmitting at least one sensor signal as a function of a position of the motor vehicle relative to at least one vehicle-external reference object from a sensor to a monitoring device in communication with a control unit for controlling the action of the monitoring device;
comparing the at least one sensor signal with at least one predetermined signal pattern or with at least one predetermined value interval or with at least one predetermined signal template;
transmitting at least one control command initiating a safety measure to at least one unit of the motor vehicle, when the comparing step reveals a difference;
generating an impedance value signal as the sensor signal in an inductive charging system, the inductive charging system including a primary coil and a secondary coil and a charging device of a traction battery of the motor vehicle, wherein the impedance value signal changes when a position of the secondary coil relative to the primary coil changes;
detecting a collision on the basis of the at least one predetermined signal pattern or the at least one predetermined value interval or the at least one predetermined signal template, which includes a predetermined momentum or a predetermined acceleration or a predetermined displacement path of the motor vehicle or a predetermined timing course; and
deploying an airbag in an event of a collision.
1 Assignment
0 Petitions
Accused Products
Abstract
In a method for detecting whether a motor vehicle in a parked state, in particular in the switched-off state, has been hit or moved, at least one sensor signal is transmitted as a function of a position of the motor vehicle relative to at least one vehicle-external reference object from a sensor device to a control device. The control device compares the at least one sensor signal with at least one predetermined signal pattern or with at least one predetermined value interval or with at least one predetermined signal template, and transmits at least one control command for initiating a safety measure to at least one unit of the motor vehicle, when the comparison reveals a difference.
17 Citations
15 Claims
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1. A method for detecting whether a motor vehicle in a parked state and in a switched-off state has been hit or moved, said method comprising the steps of:
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transmitting at least one sensor signal as a function of a position of the motor vehicle relative to at least one vehicle-external reference object from a sensor to a monitoring device in communication with a control unit for controlling the action of the monitoring device; comparing the at least one sensor signal with at least one predetermined signal pattern or with at least one predetermined value interval or with at least one predetermined signal template; transmitting at least one control command initiating a safety measure to at least one unit of the motor vehicle, when the comparing step reveals a difference; generating an impedance value signal as the sensor signal in an inductive charging system, the inductive charging system including a primary coil and a secondary coil and a charging device of a traction battery of the motor vehicle, wherein the impedance value signal changes when a position of the secondary coil relative to the primary coil changes; detecting a collision on the basis of the at least one predetermined signal pattern or the at least one predetermined value interval or the at least one predetermined signal template, which includes a predetermined momentum or a predetermined acceleration or a predetermined displacement path of the motor vehicle or a predetermined timing course; and deploying an airbag in an event of a collision. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A motor vehicle, comprising:
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a sensor configured to generate at a standstill of the motor vehicle a sensor signal which is dependent on a relative position of the motor vehicle with respect to at least one vehicle-external reference object, said sensor being impedance measuring sensors in an inductive charging system generating an impedance value signal as the sensor signal; a monitoring device in communication with a control unit for controlling the action of the monitoring device configured to receive the sensor signal and to compare the at least one sensor signal with at least one predetermined signal pattern or with at least one predetermined value interval or with at least one predetermined signal template, said monitoring device transmitting at least one control command initiating a safety measure to at least one unit of the motor vehicle, when the comparison reveals a difference; and an inductive charging system including a primary coil and a secondary coil and a charging device of a traction battery of the motor vehicle, said sensor forming part of the inductive charging system and configured as a positioning device to transmit a positioning signal to the monitoring device, wherein the impedance value signal changes when a position of the secondary coil relative to the primary coil changes; wherein on the basis of the at least one predetermined signal pattern or the at least one predetermined value interval or the at least one predetermined signal template, a collision is detected, which includes a predetermined momentum or a predetermined acceleration or a predetermined displacement path of the motor vehicle or a predetermined timing course, and an airbag is deployed. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification