Invention Grant
- Patent Title: Detection and control of electric machine with any combination of position sensor number of pole pairs and electric machine number of pole pairs
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Application No.: US16808681Application Date: 2020-03-04
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Publication No.: US11411516B2Publication Date: 2022-08-09
- Inventor: Silong Li , Jiyao Wang , Michael W. Degner
- Applicant: Ford Global Technologies, LLC
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Brooks Kushman P.C.
- Agent David B. Kelley
- Main IPC: H02P6/17
- IPC: H02P6/17 ; G01B7/30 ; H02K11/33 ; H02K11/21 ; H02K7/00

Abstract:
A vehicle includes an electric machine having a number of pole pairs, N, a position sensor having a number of pole pairs, M, that generates output indicative of a rotational position of the electric machine, and one or more controllers. The one or more controllers generate a remapped rotational position according to a product of the rotational position and L/N, generate a scaled position according to a product of the remapped rotational position and N/M, and command the electric machine to produce a specified torque or speed based on the scaled position. M is not equal to and not a factor of N, and L is a minimum common multiplier of N and M.
Public/Granted literature
- US20210281199A1 DETECTION AND CONTROL OF ELECTRIC MACHINE WITH ANY COMBINATION OF POSITION SENSOR NUMBER OF POLE PAIRS Public/Granted day:2021-09-09
Information query