Short range ultrasonic distance warning system for motor vehicle

US5572484A · kind A · utility

Assignee

• Mercedes-Benz Group AG · DE

Inventors

• Hermann Gaus · Stuttgart, DE
• Gerhard Franke · Rahden, DE
• Wolfgang Stahl · Eckental, DE

Key dates

• Filing date: Jul 19, 1995
• Grant date: Nov 5, 1996
• Expiry date: Jul 19, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S367/909
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A short range ultrasonic distance warning system is used as a parking aid in a motor vehicle. The entire system is active in the case of reverse gear being selected and low speed, and is deactivated automatically at higher speed. If reverse gear is not being selected, only the system part for front space monitoring is active at low speed of travel, while the system is once again automatically kept inactivated at higher speed. This implements a parking aid which is convenient and avoids unnecessary system activations.