A dual-mode pure electric drive system for vehicles

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. The effect of reducing power performance requirements

Inactive Publication Date: 2016-05-11
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
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  • 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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  • A dual-mode pure electric drive system for vehicles
  • A dual-mode pure electric drive system for vehicles
  • A dual-mode pure electric drive system for vehicles

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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 serve as power terminals for driving the vehicle;

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

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Abstract

The invention discloses a dual-mode pure electric drive system for a vehicle, which includes: a drive motor, a drive mechanism for variable mode shifting, a transmission assembly, a half shaft and a wheel assembly, and other electronic control system accessories. It is a pure electric drive system dedicated to electric vehicles that can realize the automatic switching of the centralized drive of the main and auxiliary motors and the distributed drive of the dual motors, and has a two-speed automatic transmission function. Using this system to drive in different modes can greatly reduce the requirements on the working characteristics of the drive motor, and significantly improve the power and reliability of the vehicle; selecting different drive modes according to different working conditions and coordinating the torque output of the motors on both sides will help improve The operation economy and driving stability of the vehicle; it can realize the centralized drive of a single motor, avoiding the disadvantages of the vehicle being difficult to drive normally due to the accidental failure of one side of the motor during the distributed drive, and is more flexible and 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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Patent Type & Authority Patents(China)
IPC IPC(8): B60K17/28B60W30/182
Inventor 张利鹏祁炳楠
Owner YANSHAN UNIV
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