Cooling system for a vehicle having an internal-combustion engine

US5215044A · kind A · utility

Assignee

• Behr GmbH & Co. · DE

Inventors

• Matthias Banzhaf · Heilbronn, DE
• Wilhelm Baruschke · Schallstadt, DE
• Juergen Barwig · Stuttgart, DE
• Dieter Bauer · Munich, DE
• Jochen Eitel · Lotus Pond, DE
• Kurt Hauser · Markdorf, DE
• Werner Helms · Eßlingen, DE
• Karl Lochmahr · Leinfelden, DE

Key dates

• Filing date: Feb 4, 1992
• Grant date: Jun 1, 1993
• Expiry date: Feb 4, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A cooling system for a vehicle having an internal-combustion engine has a plurality of cooling circuits with heat exchangers for each circuit. The temperatures of different cooling media are measured and processed in a switching device to form an output signal which serves to control a fan. In this way, the air flow through the heat exchangers can be varied depending on measured temperature conditions. Individual capacity control of each cooling circuit is possible, thereby preventing unfavorable operating conditions in the individual circuits. The cooling capacity demand of the individual cooling circuits is determined by a central control unit which receives signals from temperature sensors in each circuit. The central control unit includes a microprocessor. Each cooling circuit has an actuating means for individually controlling the capacity of the relevant heat exchanger.