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.:
Date of Patent:
Nov. 24, 2015
Filed:
Aug. 31, 2012
Troy W. Harris, Iii, Charlotte, NC (US);
Troy W. Harris, III, Charlotte, NC (US);
DEERE & COMPANY, Moline, IL (US);
Abstract
An electric lawn tractor power management system and method including a power management switch having a normal mode setting and a power management mode setting. In response to actuation of the power management switch to the power management mode setting, a blade motor controller commands a blade motor to rotate at a power management speed lower than a normal speed, and a traction drive motor controller commands a traction drive motor to rotate up to a maximum power management speed lower than a normal maximum speed. At least one persistence counter notifies the controllers if excess loading conditions exist on the blade motor or traction drive motor. The controllers change the speeds and/or response of the blade motor and traction drive motor in response to the excess loading conditions.