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. 27, 2019
Filed:
Aug. 03, 2017
Jtekt Corporation, Osaka-shi, Osaka, JP;
Shingo Maeda, Okazaki, JP;
Terutaka Tamaizumi, Okazaki, JP;
Jun Hasegawa, Okazaki, JP;
Masayuki Kita, Okazaki, JP;
Gempei Nakasone, Nisshin, JP;
Hiromasa Tamaki, Okazaki, JP;
JTEKT CORPORATION, Osaka-shi, JP;
Abstract
An ECU includes a deviation calculating circuit an assist control circuit, an automatic steering control circuit including an intervention determination switching circuit, an adder, a current command value calculating circuit The intervention determination switching circuit includes a count amount calculating circuit, an adder, an immediately-preceding count amount output circuit, a switching determination circuit, and an output switching circuit. The count amount calculating circuit calculates a count amount having a positive value or a negative value based on a steering torque absolute value calculated by an absolute value switching circuit. The adder calculates a total count amount that is the total sum of a presently calculated count amount and an immediately-preceding count amount calculated in an immediately-preceding calculation cycle. The switching determination circuit determines a driver's intention to intervene in steering, based on whether the total count amount is equal to or greater than a count amount threshold value.