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Automobile double-mode pure power-driven system

A pure electric drive, dual-mode technology, applied in vehicle components, control devices, transportation and packaging, etc., can solve the problems of difficult normal driving of vehicles and inability to independently adjust the motion state of driving wheels, and achieve increased centralized drive and variable speed functions. Effects of reduced power performance requirements

Inactive Publication Date: 2014-02-19
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to design a pure electric drive system for vehicles that can realize the automatic switching of the two drive modes of centralized drive and distributed drive and has two-speed automatic transmission capability. On the basis of requirements, solve the defects that the centralized drive system cannot independently adjust the motion state of each drive wheel, and the vehicle is difficult to drive normally when one side of the distributed drive system fails

Method used

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  • Automobile double-mode pure power-driven system
  • Automobile double-mode pure power-driven system

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Embodiment approach

[0027] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

Embodiment

[0028] Embodiment A dual-mode pure electric drive system for vehicles, the structure can refer to the attached Figure 1-12 , which includes: driving motor, variable mode shifting drive mechanism, transmission assembly, half shaft assembly, wheel assembly and other electronic control system accessories;

[0029] The drive motors are two AC asynchronous motors with the same structure and technical parameters, which are respectively fixed on both sides of the transmission assembly and connected with the input shafts on both sides of the transmission system, as the power source for driving the vehicle;

[0030] The driving half shaft and the wheel assembly are also fixed on both sides of the transmission assembly, respectively connected to the output shafts on both sides of the transmission system, and used as power terminals for driving the vehicle;

[0031] The variable-mode shifting driving mechanism is fixed on the casing of the transmission assembly, and includes three parts...

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Abstract

The invention discloses an automobile double-mode pure power-driven system. The automobile double-mode pure power-driven system comprises drive motors, a mode-changing gear-shifting drive mechanism, a transmission assembly, an axle shaft, a wheel assembly and other electronic control system accessories. The pure power-driven system special for the power-driven automobile can achieve automatic switching of main auxiliary motor integrated drive and double-motor distribution drive and has the function of two-gear automatic speed-changing. The system can be used for driving under different modes and the requirement for the working property of the drive motors is greatly lowered. The power performance and the reliability of the automobile are obviously improved. According to different working conditions, different drive modes are selected and output of torque of the motors on the two sides is coordinated. Operational economy and driving stability of the automobile are favorably improved. Concentrated drive of a single motor is achieved and the defect that the automobile is hard to drive normally due to the fact that the motor on one side accidentally breaks down in the time of distribution drive is overcome. The automobile double-mode pure power-driven system is more flexible and more reliable.

Description

technical field [0001] The present invention relates to a pure electric drive system for vehicles, in particular to a system that integrates the distributed drive function of dual motors and the centralized drive function of main and auxiliary motors, and can realize two-speed automatic shifting and automatic switching between two driving modes. Pure electric vehicle dedicated drive system. technical background [0002] At present, the drive systems used in electric vehicles mainly include single-motor centralized drive and multi-motor distributed drive. The centralized drive technology is relatively mature, but the drive force must be roughly evenly distributed to the left and right axle shafts by the differential, and the drive torque of a single wheel cannot be adjusted independently. Distributed drive cancels the mutual constraints between the wheels, and uses soft connections to replace most of the mechanical transmission components. By flexibly controlling the torque ...

Claims

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Application Information

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IPC IPC(8): B60K17/28B60W30/182
Inventor 张利鹏祁炳楠
Owner YANSHAN UNIV
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