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:
Feb. 14, 2012
Filed:
Jun. 14, 2007
Tsutomu Miyazaki, Aichi-ken, JP;
Akihiro Kamiya, Takahama, JP;
Naoto Miyauchi, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Aisan Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
In an embodiment, conductance of electricity to a heating element () for heating a throttle valve () of an automobile engine and a peripheral section thereof is performed only during a period wherein this heating can be performed effectively. Specifically, a controller () receives an output signal from an air flow sensor (), and when a quantity of intake air is equal to or less than a predetermined 'intake air quantity criterion for heating', conduction of electricity to the heating element () is carried out. Conversely, when the quantity of intake air is greater than this 'intake air quantity criterion for heating', conduction of electricity to the heating elementis prohibited.