Arrangement for monitoring a transducer for detecting an operating variable in a motor vehicle

US5375056A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Werner Nitschke · Ditzingen, DE
• Thomas Frey · Friolzheim, DE
• Reinhard Pfeufer · Asperg, DE
• Thomas Zeller · Ditzingen, DE

Key dates

• Filing date: Apr 16, 1992
• Grant date: Dec 20, 1994
• Expiry date: Apr 16, 2012

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H2061/1284
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

An arrangement for detecting a changing variable in a motor vehicle includes at least one transducer having terminals with at least one terminal being connected to a pole of a supply voltage. In addition, an actuable switch element is provided which interrupts at least one connecting line connected to a terminal. The potential of this terminal is detected relative to a reference potential when the switch element is open and a fault state of the transducer is assumed when there is an impermissible fluctuation of the potential value during at least two detecting operations.