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.

Date of Patent:
Jun. 04, 2024

Filed:

Dec. 20, 2021
Applicant:

Nanjing Chervon Industry Co., Ltd., Nanjing, CN;

Inventors:

Dezhong Yang, Nanjing, CN;

Xiubo Dai, Nanjing, CN;

Lei Wang, Nanjing, CN;

Wenqi Zhen, Nanjing, CN;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60L 15/20 (2006.01); A01D 34/00 (2006.01); A01D 69/02 (2006.01); H02P 21/12 (2016.01); H02P 21/18 (2016.01); H02P 21/22 (2016.01); A01D 34/66 (2006.01); A01D 34/78 (2006.01); A01D 101/00 (2006.01);
U.S. Cl.
CPC ...
B60L 15/20 (2013.01); A01D 34/006 (2013.01); A01D 69/02 (2013.01); H02P 21/12 (2013.01); H02P 21/18 (2016.02); H02P 21/22 (2016.02); A01D 34/66 (2013.01); A01D 34/78 (2013.01); A01D 2101/00 (2013.01); B60L 2240/429 (2013.01); B60L 2240/461 (2013.01);
Abstract

A riding lawn mower includes a running assembly, a power output assembly, a power supply device, a driver circuit, an operating device, and a control module. The running assembly includes running wheels and a first motor for driving the running wheels. The operating device is configured to set at least one of target torque or a target rotational speed of the first motor. The control module is configured to output a control signal to the driver circuit to make an input current or an input voltage of the first motor vary with a rotor position of the first motor and make an actual torque of the first motor reach or basically reach the target torque within a preset time.


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