COLLISION PROTECTION METHOD AND COLLISION PROTECTION DEVICE FOR A DISPLACEABLE VEHICLE PART AND VEHICLE HAVING THE COLLISION PROTECTION DEVICE
First Claim
1. A collision protection method for a displaceable vehicle part of a vehicle, wherein during a displacement of the displaceable vehicle part, performing the following steps of:
- scanning a travel path region upstream from the displaceable vehicle part along a predefined scanning path by a focused light beam;
detecting reflected radiation of the focused light beam by a light-sensitive sensor;
concluding a presence or absence of an obstruction in the travel path region on a basis of the reflected radiation; and
stopping or reversing the displacement if the obstruction is recognized in the travel path region.
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Accused Products
Abstract
In the case of a collision protection method for a displaceable vehicle part of a vehicle, during the displacement of the vehicle part, a focused light beam is deflected by a light deflection unit along a predefined scanning path and reflected radiation of the same light beam is detected by a light-sensitive sensor to scan a travel path region upstream from the vehicle part. The presence or absence of an obstruction in the upstream travel path region is concluded on the basis of the reflected radiation, wherein the displacement is stopped or reversed if an obstruction is recognized in the upstream travel path region.
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Citations
18 Claims
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1. A collision protection method for a displaceable vehicle part of a vehicle, wherein during a displacement of the displaceable vehicle part, performing the following steps of:
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scanning a travel path region upstream from the displaceable vehicle part along a predefined scanning path by a focused light beam; detecting reflected radiation of the focused light beam by a light-sensitive sensor; concluding a presence or absence of an obstruction in the travel path region on a basis of the reflected radiation; and stopping or reversing the displacement if the obstruction is recognized in the travel path region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A collision protection device for a displaceable vehicle part of a vehicle, the collision protection device comprising:
a sensor unit having a light source for a focused light beam, a light deflection unit for deflecting the focused light beam, and a light-sensitive sensor for detecting reflected radiation of the focused light beam; and a control and analysis unit configured to carry out a collision protection method for the displaceable vehicle part, wherein during a displacement of the displaceable vehicle part, said control and analysis unit programmed to; scan a travel path region upstream from the displaceable vehicle part along a predefined scanning path by the focused light beam; detecting the reflected radiation of the focused light beam by said light-sensitive sensor; concluding a presence or absence of an obstruction in the travel path region on a basis of the reflected radiation; and stopping or reversing the displacement if the obstruction is recognized in the travel path region. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A vehicle, comprising:
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a vehicle door; a collision protection device mounted in said vehicle door, said collision protection device having; a sensor unit having a light source for a focused light beam, a light deflection unit for deflecting the focused light beam, and a light-sensitive sensor for detecting reflected radiation of the focused light beam; and a control and analysis unit configured to carry out a collision protection method for said vehicle door, wherein during a displacement of said vehicle door, said control and analysis unit programmed to; scan a travel path region upstream from said vehicle door along a predefined scanning path by the focused light beam; detecting the reflected radiation of the focused light beam by said light-sensitive sensor; concluding a presence or absence of an obstruction in the travel path region on a basis of the reflected radiation; and stopping or reversing the displacement if the obstruction is recognized in the travel path region.
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Specification