Invention Grant
- Patent Title: Door latch detection with motor current analysis
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Application No.: US17469592Application Date: 2021-09-08
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Publication No.: US12021463B2Publication Date: 2024-06-25
- Inventor: Pratyaksh Rohatgi
- Applicant: WHIRLPOOL CORPORATION
- Applicant Address: US MI Benton Harbor
- Assignee: WHIRLPOOL CORPORATION
- Current Assignee: WHIRLPOOL CORPORATION
- Current Assignee Address: US MI Benton Harbor
- Agency: Brooks Kushman P.C.
- Main IPC: H02P7/00
- IPC: H02P7/00 ; F24C14/02 ; F24C15/02 ; G01R19/00 ; H02K17/32 ; H02K23/68 ; H02P21/22 ; E05B47/00

Abstract:
Controlling a door latch of a cooking appliance is provided. A controller monitors motor current of a motor driving a door latch during a locking operation of a door of the cooking appliance. The controller deactivates the motor responsive to the motor current reaching a closed door threshold amount of current. The controller indicates the door being in a closed state responsive to the current draw over time matching a predefined current draw curve.
Public/Granted literature
- US20230076336A1 DOOR LATCH DETECTION WITH MOTOR CURRENT ANALYSIS Public/Granted day:2023-03-09
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