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:
May. 05, 1998
Filed:
Nov. 08, 1996
Akira Susaki, Higashimurayama, JP;
Tsugio Tomita, Hitachi, JP;
Syuuichi Nakano, Hitachinaka, JP;
Koichi Ono, Naka-machi, JP;
Hitachi Ltd., , JP;
Abstract
A throttle valve control system and a control method thereof prevents an output of throttle sensors from becoming discontinuous at a point of switching the throttle sensors, and obtains a continuous output over the whole range of the sensor output, and accordingly can perform highly accurate throttle control. The system includes a first A/D converter for converting an output signal of a throttle sensor into a digital signal, an amplifier for amplifying the output signal of the throttle sensor, a second A/D converter for converting the amplified output signal into a digital signal and an amplification factor adjuster for receiving outputs from one or the other of the A/D converters and scaling the received output signal. A correction is provided for the amplification factor of the adjuster whereby a continuous actual opening degree signal without any step is obtainable over the entire range of the throttle sensor output.