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. 02, 2013
Filed:
Oct. 11, 2012
Ford Global Technologies, Llc, Dearborn, MI (US);
John Moffat, Essex, GB;
Chris James Leck, Middlesex, GB;
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method for controlling a cooling system for a vehicle having an internal combustion engine permits rapid warm-up of the engine by the use of two electrically-operated valves in addition to a conventional thermostat. The method includes controlling a bypass valve and a heater valve to both remain closed at low coolant temperatures and engine speed to inhibit coolant flow through the engine. A control unit opens the bypass valve to prevent cavitation in the water pump if engine speed and/or load exceeds a certain value. The heater valve is opened when a threshold engine coolant temperature is reached permitting warming of the heater matrix.