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Double-motor double-planet-row dynamic coupling driving structure

A technology of power coupling and double planetary row, applied in the direction of electric power device, power device, control device, etc., can solve the problems of low power density, cumbersome control and complex structure of the transmission device

Inactive Publication Date: 2015-03-11
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a dual-motor multi-mode coupling drive structure with high power density and easy operation, so that the two motors can realize torque coupling when the car is running at low speed or a single motor can output large torque through two-stage planetary deceleration; When driving, the two motors can be coupled in speed to output high speed; so that the motor often works in a high-efficiency working area under normal working conditions; it overcomes the problems of low power density, complex structure and cumbersome control of the existing transmission device

Method used

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Embodiment Construction

[0010] Now further illustrate in conjunction with accompanying drawing.

[0011] The present invention is composed of drive axle (1), final reducer (2), No. 1 planetary gear mechanism (7), shaft coupling (8), No. 2 planetary gear mechanism (10), No. 3 brake (12), No. 2 No. reducer (13), No. 2 motor (14), gear (20), No. 1 reducer (21), and No. 1 motor (22), wherein No. 1 planetary gear mechanism (7) is composed of No. 1 ring gear ( 3), No. 1 planet carrier (4), No. 1 planetary gear (5), No. 1 brake (6), No. 1 sun gear (18), No. 2 planetary gear mechanism (10) is composed of No. 2 ring gear (9 ), No. 2 planet carrier (17), No. 2 planetary gear (15), No. 2 brake (11), and No. 2 sun gear (16), it is characterized in that: No. 1 motor (22) output power is decelerated by No. 1 Device (21), gear (20), input to the No. 1 ring gear (3) of No. 1 planetary gear mechanism (7), No. 2 motor (14) output power through No. 2 speed reducer (13), No. 3 brake ( 12), the power is input into the ...

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Abstract

The invention provides a double-motor double-planet-row dynamic coupling driving structure. A double-planet-row system consisting of a planet gear mechanism I 7 and a planet gear mechanism II 10 serves as a dynamic coupling device of a motor I 22 and a motor II 14; a brake I 6 is used for locking and unlocking a gear ring I 3; a brake II 11 is used for locking and unlocking a planet carrier II 17; a brake III 12 is used for locking and unlocking a sun wheel II 16. The double-motor double-planet-row dynamic coupling driving structure can be used for realizing multiple working modes including a double-motor separate drive mode, a double-motor rotation speed coupling drive mode and a double-motor torque coupling drive mode and can meet the different running requirements of vehicles.

Description

technical field [0001] The invention belongs to the technical field of power assembly components, and in particular relates to a dual-motor power coupling drive assembly. Background technique [0002] At present, the driving system of heavy-duty electric vehicles in the field of civil vehicles in my country mainly adopts the form of a large motor plus a transmission. By controlling the speed ratio of the gearbox, the driving torque of the motor is adjusted to meet the requirements of the car's climbing, acceleration and maximum speed. Require. However, this type of drive has stricter requirements on the bearings of large motors. Heavy-duty vehicles such as electric buses mostly work at low speeds, resulting in the motors often working in a low-efficiency working area. Power interruption will occur during the shifting process of the traditional transmission mechanism, which will cause unnecessary impact and affect the riding comfort and other problems. The invention aims to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/02B60K17/28B60L7/10
Inventor 张硕张承宁韩光伟
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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