Method for controlling a motor vehicle air conditioning system

US5099654A · kind A · utility

Assignee

• Sueddeutsche Kuehlerfabrik Julius Fr. Behr GmbH & Co. KG · DE

Inventors

• Wilhelm Baruschke · Schallstadt, DE
• Roland Burk · Stuttgart, DE
• Hans-Joachim Ingelmann · Heubach, DE
• Hans Kampf · Bad Marienberg, DE
• Josef Kern · Berlin, DE
• Karl Lochmahr · Leinfelden, DE
• Rolf Wallner · Stuttgart, DE
• Reinhold Weible · Stuttgart, DE

Key dates

• Filing date: May 17, 1989
• Grant date: Mar 31, 1992
• Expiry date: May 17, 2009

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25B2700/21161
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for controlling a motor vehicle air conditioning system is described. The motor vehicle air conditioning system comprises a refrigeration circuit including a refrigerant compressor, a condenser, an evaporator and a throttle device arranged upstream of the evaporator. The condenser is associated with a ventilating fan and the evaporator is associated with a blower. The compressor capacity, the condenser capacity and the evaporator capacity are directly or indirectly sensed by sensor means and supplied as electrical variables to an electronic control circuit which logically combines these input signals and generates output signals in dependence on at least two of these capacity values and including further parameters. The control circuit acts on electrically controllable acturators for influencing the compressor capacity, the condenser capacity and/or the evaporator capacity.