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:
Jan. 17, 2017
Filed:
Oct. 27, 2015
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Hideki Kamatani, Nagoya, JP;
Takaya Soma, Okazaki, JP;
Takao Itoh, Seto, JP;
Etsushi Taguchi, Kasugai, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Abstract
When all conditions for increasing a regeneration amount are established, and when a motor temperature Tmg is lower than a predetermined temperature, and a rotation speed Nmof a motor MGis lower than a predetermined rotation speed, a motor requirement upper limit value VHlimmg is set by imposing a limit for reducing a drive voltage system voltage VH (S). In so doing, the regeneration amount can be increased by suppressing heat generation by a diode of a lower arm of a step-up converter. When, on the other hand, the motor temperature Tmg equals or exceeds the predetermined temperature or the rotation speed Nmof the motor MGequals or exceeds the predetermined rotation speed, the motor requirement upper limit value VHlimmg is set by relaxing or canceling the limit for reducing the drive voltage system voltage VH (S).