Control system for electrically operated components of an automotive vehicle

US4697092A · kind A · utility

Assignee

• Petri AG · DE

Inventors

• Peter Roggendorf · Frankfurt, DE
• Rainer Buchmann · Frankfurt, DE

Key dates

• Filing date: Jul 16, 1984
• Grant date: Sep 29, 1987
• Expiry date: Jul 16, 2004

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/20834
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An automotive vehicle has a horn which is mounted on the vehicle chassis. The horn is connected with the vehicle battery by a first conductor. A switch for the horn is mounted on the steering wheel and is connected with the horn via a second conductor. The second conductor is divided into two sections of which one is rotatable with the steering wheel and the other is fixed on the chassis. A control system for controlling electrical components of the vehicle other than the horn has a transmitting unit which is mounted on the steering wheel. The transmitting unit has an output which is connected with the rotatable section of the conductor leading from the horn switch to the horn. The control system further includes a receiving unit which is mounted on the vehicle chassis and has an input connected with the fixed section of this conductor. When the operator of the vehicle presses a switch in order to activate an electrical component, input signals are delivered to the transmitting unit. The transmitting unit codes the input signals, modulates the coded signals onto high frequency carrier signals, and forwards the modulated carrier signals to the receiving unit. The receiving unit, whi…