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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 10111378 B1

PDFFull Text
Date of Patent:
Oct. 30, 2018

Filed:

Jun. 01, 2017

Electric lawn mower control apparatus

Applicant:

Honda Motor Co., Ltd., Tokyo, JP;

Inventors:

Yoshihiko Yamagishi, Wako, JP;

Toru Yuki, Wako, JP;

Shinsaku Nakayama, Wako, JP;

Assignee:

HONDA MOTOR CO., LTD., Tokyo, JP;

Attorney:

Duft & Bornsen, PC

Primary Examiner:

Robert E Pezzuto

Int. Cl.
CPC ...
A01D 34/00 (2006.01); A01D 34/58 (2006.01); A01D 34/78 (2006.01); A01D 34/68 (2006.01); A01D 34/82 (2006.01); G01R 31/36 (2006.01); H01M 10/0525 (2010.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H02J 7/00 (2006.01); H02J 7/14 (2006.01); H02P 27/08 (2006.01); B60L 7/14 (2006.01); A01D 101/00 (2006.01);
U.S. Cl.
CPC ...
A01D 34/006 (2013.01); A01D 34/6806 (2013.01); A01D 34/78 (2013.01); A01D 34/82 (2013.01); B60L 7/14 (2013.01); G01R 31/3606 (2013.01); H01M 10/0525 (2013.01); H01M 10/44 (2013.01); H01M 10/486 (2013.01); H02J 7/0068 (2013.01); H02J 7/1438 (2013.01); H02P 27/08 (2013.01); A01D 2101/00 (2013.01); H01M 2220/20 (2013.01);
Abstract

In a control apparatus of a walk-behind electric lawn mower equipped with an electric motor, a blade cutter connected to the electric motor, a rechargeable battery connected to the electric motor, a motor driver circuit to adjust supply of operating electric power to the electric motor, ON/OFF of a first switching element disposed in a current path connecting the battery and the electric motor and a second switching element interposed in the current path in series with a braking resistor to allow charge current from the electric motor to the braking resistor, wherein operation of the first and second switching elements are controlled based on detected battery temperature and internal voltage of the motor driver circuit.

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