Auxiliary back-up and trailer coupling device for motor vehicles
AssigneeRobert Bosch GmbH
InventorsMartin Noll, Ulrich Kanzler, Klaus Krockenberger, Juergen Leinberger
Life of this patent
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Abstract
An auxiliary back-up and trailer coupling device for motor vehicles includes ultrasonic sensors mounted on the motor vehicle. The ultrasonic sensors transmit and receive sound waves, and are linked to a control and display device. The device permits the position of a trailer unit that is equipped with a coupling device and arranged behind the motor vehicle to be exactly determined. The trailer is equipped with a coupling device, preferably a tow bar, and has an additional transmitting and receiving ultrasonic sensor.
Claims12
A device for assisting a driver of a motor vehicle to back-up and hitch a trailer equipped with a coupling device, comprising:
- a) ultrasonic sensors, the ultrasonic sensors
- i) mounted on the motor vehicle, and
- ii) adapted to transmit and receive sound waves;
- b) a control unit coupled with the ultrasonic sensors and having an output;
- c) a display device having an input coupled with the output of the control unit;
- and
- d) an additional ultrasonic sensor, the additional ultrasonic sensor
- i) disposed in a fixed position relative to the coupling device of the trailer, and
- ii) adapted to receive said sound waves, and further adapted to transmit additional sound waves in response to said sound waves transmitted by said ultrasonic sensors and received by said additional ultrasonic sensor;
- wherein said control unit determines a position of the motor vehicle relative to the trailer based on said additional sound waves transmitted by said additional ultrasonic sensor.
Dependencies are inferred from the claim text.