Hybrid powertrain with centrifugally actuated electric motor disconnect clutch and control method

A technology for hybrid vehicles and clutches, applied in the direction of automatic clutches, hybrid vehicles, clutches, etc., can solve problems such as restrictions, and achieve the effects of eliminating needs, reducing rotation losses, and eliminating power requirements and rotation losses

Active Publication Date: 2016-06-01
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electric drive modules may be limited in terms of gear ratio due to several factors, in particular due to the top speed of the motor

Method used

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  • Hybrid powertrain with centrifugally actuated electric motor disconnect clutch and control method
  • Hybrid powertrain with centrifugally actuated electric motor disconnect clutch and control method

Examples

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Embodiment Construction

[0009] Referring to the drawings, wherein like reference numerals represent like parts throughout the several views, figure 1 A hybrid electric vehicle 10 is schematically shown having a frame 11 (shown in phantom) having a first axle 12 connected to a first pair of wheels 14 and a second axle connected to a second pair of wheels 18 16. In one embodiment, wheels 14 are front wheels and wheels 18 are rear wheels. exist figure 1 In , wheels 14 , 18 are shown attached to tires 19 . Each axle 12, 16 has two separate axle sections connected via a respective differential 15, 17, as known to those skilled in the art. Each wheel 14, 18 has a friction braking mechanism 20, shown as a disc brake. The first axle can be connected to a transmission 22 and the second axle 16 can be connected to an electric drive module 24 . The transmission 22 may be an automatic transmission and may or may not include an electric motor / generator such that the transmission 22 may or may not be a hybrid...

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PUM

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Abstract

A hybrid vehicle includes an electric machine with a rotatable rotor. A centrifugally-actuated clutch has a first rotatable member, a second rotatable member, and at least one actuation member attached to the first rotatable member. One of the first rotatable member and the second rotatable member is operatively connected to the wheel. The other of the first rotatable member and the second rotatable member is operatively connected to the rotor. The actuation member is configured to transmit an amount of torque between the first rotatable member and the second rotatable member, the amount of torque due to acting on the actuation member when the rotational speed of the first rotatable member increases The centrifugal force is reduced. A control method is also provided.

Description

technical field [0001] The present invention generally relates to a hybrid vehicle having a centrifugally actuated clutch to disconnect the electric machine. Background technique [0002] An electric drive module for a hybrid vehicle includes an electric machine connected by a transmission to a vehicle drive axle. The electric motor provides propulsion assistance in certain vehicle operating modes. The higher gear ratio of the transmission allows the motor to have a relatively low maximum torque because the torque provided by the motor is multiplied by the gear ratio. The electric drive module may be limited in terms of gear ratio due to various factors, in particular due to the top speed of the electric motor. That is, at high axle speeds, the speed of the motor will be higher due to the high gear ratio, so the gear ratio must be kept below a high gear ratio that would cause the motor to exceed its maximum speed. Contents of the invention [0003] A hybrid vehicle is p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K6/36B60K6/38B60W20/10B60W10/02B60W10/10B60W10/08B60W10/06
CPCB60K6/38B60K6/52B60K2001/001B60Y2400/416F16H47/06F16H47/08F16D2043/145Y02T10/62F16D43/18
Inventor A.G.霍尔姆斯M-J.金S.A.塔诺斯基
Owner GM GLOBAL TECH OPERATIONS LLC
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