The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 08, 1997
Filed:
Jan. 11, 1996
Roland Saur, Stuttgart, DE;
Peter Leu, Denkendorf, DE;
Abstract
A cooling system and a method for controlling a cooling system for an internal-combustion engine of a motor vehicle having a thermostatic valve which can be switched over from a higher control level to a lower control level. A fan is provided which is assigned to a coolant radiator and which contains a fan control circuit with a temperature comparison step which compares the ACTUAL temperature of the coolant with a desired value. When the desired value is exceeded, a temperature signal is generated which is applied to an input of an AND-element. A switching signal for the switch-over of the thermostatic valve to the lower control level is applied to the other input of the AND-element which forms a switch-on signal for the fan.