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Speed-adjustable double-motor multi-mode power system and driving method

A power system and dual-motor technology, applied in the direction of electric power devices, electric vehicles, control drives, etc., can solve the problems that there is no way to integrate torque coupling and speed coupling at the same time, reduce the overall efficiency of the dual-motor power system, and meet the power requirements. effect of demand

Inactive Publication Date: 2016-01-06
FUJIAN WANRUN NEW ENERGY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Patents CN203739605U, CN102490599, CN201110257806 and ACN104015600 all adopt a parallel connection mode, and its structure can only realize the torque coupling or speed coupling driving mode of two motors, but there is no way to integrate the two coupling modes of torque coupling and speed coupling at the same time, and it is impossible to combine The performance integration advantages of the two motors are maximized, thereby reducing the overall efficiency of the dual-motor power system

Method used

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  • Speed-adjustable double-motor multi-mode power system and driving method
  • Speed-adjustable double-motor multi-mode power system and driving method

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Embodiment Construction

[0042] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0043] see figure 1 , an embodiment of the present invention is an adjustable-speed dual-motor multi-mode power system, which includes a main drive motor 1, an auxiliary motor 2, a first clutch 3, a second clutch 4, a ring gear brake 5, and a single-row planetary gear train ( figure 1 PG in). The single-row planetary gear train includes a sun gear, a planetary gear, a planetary carrier, a ring gear and a ring gear brake, the planetary gear is arranged on the planetary carrier, the sun gear meshes with the planetary gear, and the planetary gear meshes with the ring gear. Wherein, the number of teeth of the sun gear is Zs, the number of teeth of the ring gear is Zr, and k=Zr / Zs are the characteristic parameters of the planetary gear train....

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Abstract

The invention discloses a speed-adjustable double-motor multi-mode power system. The speed-adjustable double-motor multi-mode power system comprises a main drive motor, an auxiliary motor, a first clutch, a second clutch and a single-row planetary gear train. The single-row planetary gear train comprises a sun wheel, a planetary wheel, a planetary carrier, a gear ring and a gear ring brake, wherein the planetary wheel is arranged on the planetary carrier, the sun wheel is meshed with the planetary wheel, and the planetary wheel is meshed with the gear ring. The main drive motor is connected to the sun wheel through a drive shaft, the auxiliary motor is coupled to the gear ring through the first clutch and is coupled to the sun wheel through the second clutch, and the planetary carrier is the power output end of the double-motor multi-mode power system. The speed-adjustable double-motor multi-mode power system greatly improves the working efficiency of double motors and fully utilizes the performance of the double motors. The invention further discloses a speed-adjustable double-motor multi-mode driving method.

Description

technical field [0001] The invention relates to the field of motor drive, in particular to an adjustable-speed dual-motor multi-mode power system and a drive method. Background technique [0002] At present, there are mainly two types of drive system structures for pure electric vehicles on the market: centralized single-motor drive system and discrete multi-motor drive system (in-wheel motor or wheel-side motor structure). The centralized single-motor system has technical problems such as low overall efficiency and high motor performance requirements due to the inability of the motor to run efficiently under all vehicle speed conditions; while the discrete multi-motor drive system has difficulties in integrated manufacturing and multi-motor coordinated control. And the main technical problems such as short motor vibration fatigue life. To this end, a new centralized powertrain design based on dual motors becomes another solution. [0003] In the existing technology, the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L15/32B60K1/02
Inventor 余捷林立胡旭军张辉
Owner FUJIAN WANRUN NEW ENERGY TECH
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