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Synchronizer in electro-mechanical transmission

A technology of electromechanical transmission and synchronizer, which is applied in the direction of vehicle gearbox, mechanical drive clutch, clutch, etc., and can solve the problems of complex hydraulic system, difficult to manufacture valve body, large volume, etc.

Active Publication Date: 2011-06-08
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hydraulic systems are complex, expensive, and require many components, including, inter alia, valve bodies that are bulky and difficult to manufacture

Method used

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  • Synchronizer in electro-mechanical transmission
  • Synchronizer in electro-mechanical transmission
  • Synchronizer in electro-mechanical transmission

Examples

Experimental program
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Effect test

Embodiment Construction

[0052] Referring now to the drawings, wherein the illustrations are for illustration of certain exemplary embodiments only and not for limitation of the embodiments, figure 1 A hybrid transmission 10 is schematically shown having an internal combustion engine 14 , a first motor / generator 56 , a second motor / generator 72 , and three subsets of planetary gears 24 , 26 , 28 .

[0053] As used herein, the term "control module" means any suitable one or various combinations of the following circuits: an application specific integrated circuit (ASIC), an electronic circuit, a central processing unit (preferably a microprocessor) executing one or more software or firmware programs. processor) and associated memory storage (ROM, PROM, RAM, hard drive, etc.), combinational logic circuits, input / output circuits and devices, appropriate signal conditioning and buffering circuits, and other suitable components to provide the described functions. The control module has a set of control al...

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PUM

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Abstract

The present invention relates to a synchronizer in an electro-mechanical transmission. Concretely provided is an electro-mechanical transmission including a plurality of transmission components and at least one synchronizer configured to selectively engage and disengage at least two of the transmission components to effect operation in a speed range in the transmission. The synchronizer further includes a plurality of input components associated with one of the transmission components and a plurality of output components including a clutching mechanism configured to engage to at least one of the input components when the synchronizer is activated and disengage from the input component when the synchronizer is deactivated.

Description

technical field [0001] The present invention relates to torque transmitting devices used in hybrid vehicle transmissions. Background technique [0002] Hybrid drive powertrains utilize electric motors to replace, augment, and recover energy from other drive energy sources such as internal combustion engines. The electric motor may be utilized by attaching the electric motor to the driveline via a transmission, such as a transmission gear set. Using the electric motor in this manner enables the vehicle control system to utilize various control schemes aimed at improving the fuel efficiency of the vehicle. However, those of ordinary skill in the art will appreciate that any mechanical system that is attached to the driveline through a gear set increases the overall losses due to friction and requires more energy to accelerate due to increased rotational inertia . Whether or not the electric motor is in use, the electric motor and the gears associated with being attached to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/08F16H3/62
CPCY02T10/6239F16H2037/106F16D48/06F16H2200/2041F16H61/0403F16H2061/6603F16D2023/0681F16H2037/102F16D2500/70404F16D2500/10456F16D23/04F16H2037/101F16H2200/201F16H3/728B60K6/445Y02T10/62
Inventor F·萨米A·米勒曼C·J·李
Owner GM GLOBAL TECH OPERATIONS LLC