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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 11820218 B1

PDFFull Text
Date of Patent:
Nov. 21, 2023

Filed:

Aug. 10, 2017

User-scalable power unit including removable battery packs

Applicant:

Briggs & Stratton, Llc, Wauwatosa, WI (US);

Inventors:

Jeffrey Zeiler, Pewaukee, WI (US);

Robert John Koenen, Pewaukee, WI (US);

Jacob Schmalz, Milwaukee, WI (US);

Albert Liu, Dongguan, CN;

Nick Zeidler, Brookfield, WI (US);

Scott Funke, New Berlin, WI (US);

David Procknow, Elm Grove, WI (US);

Assignee:

Briggs & Stratton, LLC, Wauwatosa, WI (US);

Attorney:

Foley & Lardner LLP

Primary Examiner:

Daniel Cavallari

Int. Cl.
CPC ...
B60K 1/04 (2019.01); H01M 10/44 (2006.01); H02J 7/00 (2006.01); B60L 53/80 (2019.01); A01D 69/02 (2006.01); H01M 50/213 (2021.01); B60L 50/60 (2019.01); B60L 58/22 (2019.01); H01M 10/42 (2006.01); H02J 7/14 (2006.01);
U.S. Cl.
CPC ...
B60K 1/04 (2013.01); A01D 69/02 (2013.01); B60L 50/66 (2019.02); B60L 53/80 (2019.02); B60L 58/22 (2019.02); H01M 10/4257 (2013.01); H01M 10/441 (2013.01); H01M 50/213 (2021.01); H02J 7/0016 (2013.01); H02J 7/0024 (2013.01); H02J 7/0025 (2020.01); H02J 7/0045 (2013.01); H02J 7/0063 (2013.01); B60K 2001/0416 (2013.01); B60K 2001/0455 (2013.01); B60K 2001/0466 (2013.01); B60L 2200/42 (2013.01); B60Y 2200/124 (2013.01); B60Y 2200/15 (2013.01); B60Y 2200/223 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/20 (2013.01); H02J 7/14 (2013.01); H02J 7/1423 (2013.01); H02J 7/1438 (2013.01); Y02T 10/70 (2013.01);
Abstract

A scalable power unit for powering one or more electric motors of a riding vehicle and/or a piece of outdoor power equipment includes a number of interconnected battery packs. The battery pack are received in a battery tray or stacked to form the scalable power unit. Each battery pack is configured to be removed and used separately or added to a combination of battery packs. A control unit selectively opens and closes switching elements to separately control the connections between the battery packs and an electrical load, such as a motor. During charging, the control unit opens and closes switching elements to control the charging rate of the individual battery packs. When the battery packs are connected to an electrical load, the control unit controls the state of the switching elements to selectively discharge the battery packs to power the riding vehicle and/or electric loads.

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