Invention Grant
- Patent Title: Control scheme for operating cordless power tool based on battery temperature
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Application No.: US15630094Application Date: 2017-06-22
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Publication No.: US10523087B2Publication Date: 2019-12-31
- Inventor: Joshua M. Lewis , James E. Goble
- Applicant: Black & Decker Inc.
- Applicant Address: US CT New Britain
- Assignee: Black & Decker Inc.
- Current Assignee: Black & Decker Inc.
- Current Assignee Address: US CT New Britain
- Agent Amir Rohani
- Main IPC: H02K7/14
- IPC: H02K7/14 ; B24B23/02 ; B25F5/00

Abstract:
A power tool is provided including a housing; an electric motor disposed within the housing; a power terminal that receives electric power from a battery pack; a power switch circuit disposed between the power terminal and the electric motor; and a controller configured to control a switching operation of the power switch circuit to regulate power being supplied from the power terminal to the electric motor. The controller is configured to receive a temperature signal indicative of a temperature of the battery pack, determine if the temperature of the battery pack is below a lower temperature threshold, and operate the switching operation of the power switch circuit in a normal mode of operation if the temperature of the battery pack is greater than or equal to the low temperature threshold and in a cold mode of operation if the temperature of the battery pack is below the low temperature threshold.
Public/Granted literature
- US20170373615A1 CONTROL SCHEME FOR OPERATING CORDLESS POWER TOOL BASED ON BATTERY TEMPERATURE Public/Granted day:2017-12-28
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