Invention Grant
- Patent Title: Drive systems including transmissions and magnetic coupling devices for electric and hybrid electric vehicles
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Application No.: US15874001Application Date: 2018-01-18
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Publication No.: US10781920B2Publication Date: 2020-09-22
- Inventor: John W. Kimes , Philip B. Woodley
- Applicant: Means Industries, Inc.
- Applicant Address: US MI Saginaw
- Assignee: Means Industries, Inc.
- Current Assignee: Means Industries, Inc.
- Current Assignee Address: US MI Saginaw
- Agency: Brooks Kushman P.C.
- Main IPC: B60K6/48
- IPC: B60K6/48 ; F16D27/118 ; B60K6/36 ; F16H63/30 ; F16H61/32 ; F16D27/12 ; B60K6/547 ; F16H3/089 ; F16D21/04 ; B60K6/387 ; F16H61/28

Abstract:
Drive systems or powertrains including transmissions for electric and hybrid electric vehicles are provided. 3-position linear motor, 2-way clutches (i.e. CMDs) are included in the transmissions. An electric 3-speed AMT having a magnetic coupling device such as a magnetic torque converter is provided to magnetically transfer a portion of rotating mechanical energy of an electric powerplant or motor to a transmission output shaft in response to an electrical signal to synchronize angular velocities of the transmission output shaft and an output shaft of the electric powerplant during a change in state of one of the CMDs. Torque is transferred to the transmission output shaft during the change in state.
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