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:
Jul. 31, 2001
Filed:
May. 26, 2000
Hiroyuki Yamada, Hitachinaka, JP;
Yasuhiro Kamimura, Hitachinaka, JP;
Kenji Ono, Hitachinaka, JP;
Norihiro Isozaki, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A control device for an internal combustion engine is configured to switch over at least one of fuel injection amount and ignition timing to an emergency traveling mode in the event that an electric actuator for driving a throttle valve malfunctions, at which time the throttle valve is set at a default position. At the time of the emergency traveling mode, throttle valve opening degree is set at a value larger than the opening degree when an accelerator pedal is not depressed during normal operation. Fuel amount is set to obtain necessary engine rpm for the emergency traveling mode and when the acceleration pedal is not depressed or the vehicle speed is zero, ignition timing is retarded with respect to ignition timing during normal idling operation.