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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 10377241 B1

PDFFull Text
Date of Patent:
Aug. 13, 2019

Filed:

Aug. 28, 2017

Speed control device of electromotive vehicle

Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Shuji Inoue, Osaka, JP;

Shinji Masuda, Osaka, JP;

Ryouji Oonishi, Osaka, JP;

Hajime Homma, Kyoto, JP;

Assignee:

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Bhavesh V Amin

Int. Cl.
CPC ...
B60T 8/32 (2006.01); G05D 1/00 (2006.01); G06F 7/00 (2006.01); G06F 17/00 (2019.01); B60L 7/14 (2006.01); B60T 7/12 (2006.01); B60T 8/17 (2006.01); B60L 7/26 (2006.01); B60W 10/188 (2012.01); B60W 30/14 (2006.01); B60L 15/20 (2006.01);
U.S. Cl.
CPC ...
B60L 7/14 (2013.01); B60L 7/26 (2013.01); B60L 15/2009 (2013.01); B60L 15/2018 (2013.01); B60L 15/2027 (2013.01); B60L 15/2072 (2013.01); B60L 15/2081 (2013.01); B60T 7/12 (2013.01); B60T 8/17 (2013.01); B60W 10/188 (2013.01); B60W 30/146 (2013.01); B60L 2240/12 (2013.01); B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60W 2710/182 (2013.01); Y02T 10/645 (2013.01); Y02T 10/72 (2013.01); Y02T 10/7275 (2013.01);
Abstract

Includes electric motor () driving driving wheel () , speed control unit () controlling driving of electric motor () based on instructed speed ω*, brake control unit () controlling hydraulic brake () applying mechanical braking to an electromotive vehicle, speed sensor () detecting traveling speed ωof the electromotive vehicle, and determination unit () determining whether the mechanical braking needs to be applied in response to the difference between instructed speed ω* and traveling speed ω, and controlling operation of brake control unit () based on the determination result. Determination unit () determines that mechanical braking needs to be applied when instructed speed ω* indicates deceleration and traveling speed ωis higher than instructed speed ω* , and performs control so that brake control unit () works hydraulic brake ().

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