Invention Grant
- Patent Title: Electromagnetically controlled clutch assembly and control method for the same
- Patent Title (中): 电磁控制离合器总成及控制方法相同
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Application No.: US13041476Application Date: 2011-03-07
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Publication No.: US08522943B2Publication Date: 2013-09-03
- Inventor: Edward D. Tate, Jr. , Alan G. Holmes
- Applicant: Edward D. Tate, Jr. , Alan G. Holmes
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operation LLC
- Current Assignee: GM Global Technology Operation LLC
- Current Assignee Address: US MI Detroit
- Agency: Quinn Law Group, PLLC
- Main IPC: F16D27/108
- IPC: F16D27/108

Abstract:
An electromagnetic (EM) clutch assembly includes input and output discs, a plunger, a control solenoid, and a controller. The input disc is connected to a rotatable input member, and defines an input face having a mechanical feature. The output disc is connected to a rotatable output member, and includes a bore wall defining a bore. The plunger is positioned at least partially within the bore. The controller transmits a time-varying electrical control signal to the solenoid to thereby resonate the plunger toward the input disc, and transmits a steady-state electrical control signal to capture the plunger in an engaged position. Rotation of the discs is controlled until the plunger encounters the mechanical feature, thereby placing the assembly in an engaged state. A vehicle having a transmission and the EM clutch assembly is also disclosed, as is a method for controlling the clutch assembly via the electrical control signals.
Public/Granted literature
- US20120228076A1 ELECTROMAGNETICALLY CONTROLLED CLUTCH ASSEMBLY AND CONTROL METHOD FOR THE SAME Public/Granted day:2012-09-13
Information query
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