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:
Jun. 28, 2016
Filed:
Nov. 27, 2012
Nissan North America, Inc., Franklin, TN (US);
Ronald S. Eisenhour, West Bloomfield, MI (US);
Richard Madden, Brighton, MI (US);
Nissan North America, Inc., Franklin, TN (US);
Abstract
A vehicle engine warm-up apparatus includes a vehicle engine, a heating system, a coolant temperature sensor, a coolant heater and a controller. The vehicle engine has a coolant passage defined therein. The heating system provides heat to a passenger compartment of a vehicle using heat transferred from the vehicle engine to coolant flowing through the coolant passage. The coolant temperature sensor measures a temperature of the coolant flowing through the coolant passage. The coolant heater is configured to heat the coolant flowing through the coolant passage of the vehicle engine. The controller is configured to operate the coolant heater with the vehicle engine running to increase a rate of heating of the coolant to more rapidly make heat available to the heating system in response to determining that the coolant temperature is below a first temperature threshold.