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:
Oct. 10, 2017
Filed:
Sep. 18, 2013
Masataka Sugiyama, Toyota, JP;
Hiroaki Kimura, Toyota, JP;
Akitaka Ichikawa, Nissin, JP;
Masaru Ebata, Chita, JP;
Tomohiro Saeki, Anjo, JP;
Tsutomu Sekine, Kariya, JP;
Hiroaki Suezaki, Anjo, JP;
Masataka Sugiyama, Toyota, JP;
Hiroaki Kimura, Toyota, JP;
Akitaka Ichikawa, Nissin, JP;
Masaru Ebata, Chita, JP;
Tomohiro Saeki, Anjo, JP;
Tsutomu Sekine, Kariya, JP;
Hiroaki Suezaki, Anjo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, JP;
AISIN SEIKI KABUSHIKI KAISHA, Kariya-Shi, JP;
Abstract
In a positive torsion angle region in which a torque is transmitted from an engine side, a small hysteresis torque is generated at all times. Therefore, torsional vibrations of a small amplitude occurring during idle operation can be effectively attenuated by the small hysteresis torque, without switching to a large hysteresis torque, for example, during idle operation of the engine. As a result, the driver can be prevented from feeling uncomfortable due to switching to a large hysteresis torque during idle operation, and drivability can therefore be improved.