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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.:

US 11691496 B1

PDFFull Text
Date of Patent:
Jul. 04, 2023

Filed:

Jun. 10, 2021

Vehicle drive system

Applicant:

Mazda Motor Corporation, Hiroshima, JP;

Inventors:

Akihiro Furukawa, Hiroshima, JP;

Ikuo Usami, Hiroshima, JP;

Kazuya Kotani, Hiroshima, JP;

Seiyo Hirano, Hiroshima, JP;

Assignee:

MAZDA MOTOR CORPORATION, Hiroshima, JP;

Attorney:

Xsensus LLP

Primary Examiner:

Erez Gurari

Int. Cl.
CPC ...
B60K 6/28 (2007.10); B60W 20/15 (2016.01); B60L 50/64 (2019.01); B60L 58/22 (2019.01); B60K 1/04 (2019.01); B60K 6/24 (2007.10); B60K 6/26 (2007.10); B60K 7/00 (2006.01); B60L 15/20 (2006.01); B60W 10/06 (2006.01); B60W 10/08 (2006.01); B60W 30/182 (2020.01);
U.S. Cl.
CPC ...
B60K 6/28 (2013.01); B60K 1/04 (2013.01); B60K 6/24 (2013.01); B60K 6/26 (2013.01); B60K 7/0007 (2013.01); B60L 15/20 (2013.01); B60L 50/64 (2019.02); B60L 58/22 (2019.02); B60W 10/06 (2013.01); B60W 10/08 (2013.01); B60W 20/15 (2016.01); B60W 30/182 (2013.01); B60K 2001/0416 (2013.01); B60Y 2200/92 (2013.01); B60Y 2300/91 (2013.01);
Abstract

In a vehicle drive system using a motor for cruising, the connection node of serially-connected first and second batteries is grounded. The operation of an inverter is controlled so that the motor drive voltage is higher than the output voltage of each of the first and second batteries. A battery unit is configured so that third and fourth batteries each in a form of a cartridge are removably loaded, and the loaded third battery is connected in parallel with the first battery and the loaded fourth battery is connected in parallel with the second battery.

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