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:
Aug. 15, 2017
Filed:
Oct. 09, 2013
Denso Corporation, Kariya, Aichi-pref., JP;
Hideyuki Mori, Chiryu, JP;
Nobuyuki Satake, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A fuel supply device () has a valve () in a fuel passage between a fuel pump () and an engine (). In a storage portion of an ECU (-) is stored a relationship between a fuel pressure and a flow rate, which are required by the engine, and voltage which is supplied to a motor (). The ECU senses voltages V, V, Vsupplied to the motor from a controller () when the valve is opened from change points C', C′, C′ at which a characteristic between the voltage and the current which are supplied to the motor () is changed. Then, the ECU corrects the voltage stored in the storage portion on the basis of differences between voltages V, V, Vstored in the storage portion at the change points C, C, Cand the voltages V, V, Vwhen the valve is opened. In this way, the fuel supply device can correctly control the motor in correspondence to the fuel pressure and the flow rate which are required by the engine.