05455557 is referenced by 102 patents and cites 5 patents.

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.

Title
Auxiliary back-up and trailer coupling device for motor vehicles
Application Number
8/187974
Publication Number
5455557
Application Date
January 28, 1994
Publication Date
October 3, 1995
Inventor
Juergen Leinberger
Nuremberg
DE
Klaus Krockenberger
Stein
DE
Ulrich Kanzler
Stein
DE
Martin Noll
Muggensturm
DE
Agent
Kenyon & Kenyon
Assignee
Robert Bosch
DE
IPC
G08B 21/00
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