Invention Grant
- Patent Title: Powertrain including an electric machine, an internal combustion engine and a continuously variable transmission
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Application No.: US15421688Application Date: 2017-02-01
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Publication No.: US10286772B2Publication Date: 2019-05-14
- Inventor: Chengwu Duan , Jian Yao , Zhen Gao
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn IP Law
- Main IPC: B60K6/543
- IPC: B60K6/543 ; F16H9/16 ; B60K6/365 ; B60K6/48 ; F16H57/04 ; F16H61/00 ; F16H61/662

Abstract:
A powertrain includes an internal combustion engine, an electric machine including a rotor, a geartrain including a pump drive mechanism, a first clutch and a second clutch and a variator for a continuously variable transmission (CVT). The internal combustion engine is rotatably coupled to the rotor of the electric machine by activation of a second clutch. The internal combustion engine is rotatably coupled to the variator by activation of first and second clutches. The rotor of the electric machine is rotatably coupled to the variator by activation of the first clutch, and the electric machine is operative in either a forward direction or a reverse direction. The geartrain is disposed to operate the pump drive mechanism to drive a fluidic pump in a first direction when the electric machine is operating in the forward direction and when the electric machine is operating in the reverse direction.
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