Invention Grant
- Patent Title: Electrically variable transmission with modular construction
- Patent Title (中): 电动变速箱采用模块化结构
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Application No.: US12325655Application Date: 2008-12-01
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Publication No.: US08088030B2Publication Date: 2012-01-03
- Inventor: Alan G. Holmes
- Applicant: Alan G. Holmes
- 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 Law Group, PLLC
- Main IPC: F16H3/72
- IPC: F16H3/72

Abstract:
An electrically-variable transmission is provided with substantially identical motor modules to simplify assembly and realize economies of scale in purchasing and testing the motor modules. First and second motor modules are packaged within a transmission casing and are operatively connecting the input member and the output member and coaxially arranged about the axis of rotation. Each motor module includes a respective motor/generator with a rotor rotatable about the axis of rotation and defining a rotor cavity. A planetary gear set is packaged within the cavity and has a first, a second and a third member. A rotor hub supports the rotor and has first and second annular end portions at opposing ends of the rotor hub, and an annular midportion connected for common rotation with the first member of the planetary gear set. A selectively engagable rotating-type clutch is packaged within the cavity and connected with the rotor hub.
Public/Granted literature
- US20100137090A1 ELECTRICALLY VARIABLE TRANSMISSION WITH MODULAR CONSTRUCTION Public/Granted day:2010-06-03
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