Hybrid power driving system with bidirectional power interruption mechanism

A hybrid power and drive system technology, applied in the direction of hybrid power vehicles, motor vehicles, transportation and packaging, etc., to achieve the effect of reducing NVH problems, reducing energy consumption of the whole vehicle, and optimizing the power input structure

Inactive Publication Date: 2020-06-16
东风鼎新动力系统科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hybrid drive system with a two-way power interruption mechanism for the problem of NVH caused by the idling of the gearbox and the drive motor in the prior art

Method used

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  • Hybrid power driving system with bidirectional power interruption mechanism

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Embodiment 1

[0024] Such as figure 1 As shown, a hybrid drive system with a two-way power interruption mechanism includes an engine 1, a transmission 2 and a drive motor 4, the engine 1 is connected to the transmission 2, and is connected to the transmission 2 through a power output gear 3 is connected to a differential, and the other end of the differential is connected to the drive motor 4; a first power disconnection and coupling structure 8 is provided between the power output gear 3 and the differential, so A second power disconnection and connection structure 10 is provided between the drive motor 4 and the differential.

[0025] The hybrid drive system operates by setting the first power disconnection and coupling structure 8 on the power transmission path of the engine 1, and setting the second power disconnection and coupling structure 8 on the power transmission path of the drive motor 4. Combined with the structure 10, a two-way power disconnectable structure is formed, and the...

Embodiment 2

[0035] This embodiment provides the hybrid mode of the hybrid drive system with the bidirectional power interruption mechanism described in the first embodiment.

[0036] In the hybrid mode, the first power disconnection and coupling structure 8 and the second power disconnection and coupling structure 10 are both in a combined state; the power transmission path of the engine 1 passes through the transmission 2 in sequence , the power output gear 3, the first power disconnection and coupling structure 8 and the differential reach the wheels 12; at the same time, the power transmission of the drive motor 4 passes through the motor reduction gear 11, the The second power disconnection and coupling structure 10 , the differential gear reaches the wheels 12 again.

[0037] At this moment, the power of the engine 1 and the drive motor 4 is jointly transmitted and acted on the wheels 12 , so that the hybrid running of the vehicle can be realized with abundant power and fuel saving. ...

Embodiment 3

[0039] This embodiment provides the pure electric mode of the hybrid drive system with the bidirectional power interruption mechanism described in the first embodiment.

[0040] In the pure electric mode, the engine 1 stops working, the first power disconnection and combination structure 8 is in a disconnected state, and the power of the drive motor 4 passes through the second power disconnection and combination state. The combination structure 10 is transmitted to the differential and then to the wheels, so as to realize pure electric driving of the vehicle.

[0041] At this time, the power of the engine has been interrupted in both directions. Even if the drive motor 4 is still running, it can not drive the internal gears such as the engine 1, the transmission 2, and the power output gear 3. The noise caused by the idling of the large gear; the output power of the drive motor 4 is basically transmitted to the wheels 12, reducing power loss and improving the efficiency of the...

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Abstract

The invention discloses a hybrid power driving system with a bidirectional power interruption mechanism, which comprises an engine, a transmission and a driving motor, a power output gear of the transmission is connected with a differential mechanism, and the other end of the differential mechanism is connected with the driving motor; a first power disconnecting and combining structure is arrangedbetween the power output gear and the differential mechanism, and a second power disconnecting and combining structure is arranged between the driving motor and the differential mechanism; accordingto the hybrid power driving system, the first power disconnection and connection structure is arranged on the power transmission path of the engine, and the second power disconnection and connection structure is arranged on the power transmission path of the driving motor; a two-way power disconnectable structure is formed, gear idling is reduced, the transmission efficiency of the driving motor can be improved, the risk of NVH caused by idling of the transmission and the motor can be reduced, the user comfort is improved, and the cost of the driving motor is reduced.

Description

technical field [0001] The invention relates to the technical field of hybrid vehicle drive, in particular to a hybrid drive system with a bidirectional power interruption mechanism. Background technique [0002] The basic structure of hybrid automatic transmissions currently on the market is only to set a clutch at the engine input end to interrupt the power input of the engine, so as to realize pure electric driving. When the user is driving purely electric, the clutch disconnects the connection between the transmission and the engine, the drive motor is connected to the transmission mechanism, and the power of the drive motor is transmitted to the wheels through the output shaft to realize pure electric driving of the vehicle. [0003] However, when the transmission structure is purely electric, the driving motor will additionally drive the gears in the power transmission path of the engine to idle, resulting in additional motor power loss. At the same time, due to the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/40B60W20/20
CPCB60W20/20B60W20/40
Inventor 吴飞
Owner 东风鼎新动力系统科技有限公司
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