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Vehicular multifunctional electromagnetic differential system

A multi-functional, electromagnetic technology, applied in the field of differential speed and auxiliary braking of motor vehicles, and auxiliary braking of vehicles, it can solve the problems of electronic products being less reliable than mechanical products and expensive to manufacture, so as to shorten the power transmission path and improve the efficiency. , the effect of simple structure

Inactive Publication Date: 2006-07-12
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it needs to be equipped with ABS and EBD systems, which are expensive and in harsh off-road environments, the reliability of electronic products is not as good as that of mechanical products, and the driving force of one-sided wheels is not as large as that of locking differentials.

Method used

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  • Vehicular multifunctional electromagnetic differential system
  • Vehicular multifunctional electromagnetic differential system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The vehicle multifunctional electromagnetic differential system is used for the differential. The motor is a squirrel-cage AC asynchronous counter-rotating double-rotor motor. for hybrid vehicles.

[0023] Such as figure 2 , the device of the present invention is made up of counter-rotating towing double-rotor motor 15, differential housing 6, reversing gear 11, left and right constant velocity universal joints 5, motor controller 10, power bus 9, anti-skid electromagnetic brake 12, etc. The counter-rotating dragging dual-rotor motor 15 is composed of an outer rotor 17 wound by an excitation winding and an inner rotor 16. The outer rotor 17 is connected to the wheel 4 on one side through a connecting device, and the inner rotor 16 is connected to the other side wheel 4 through a reversing gear 11 and a connecting device. The wheels 4 are connected; the excitation winding 7 on the outer rotor 17 is connected to the controller 10 through the slip ring mechanism 8 , and...

Embodiment 2

[0053] The vehicle multifunctional electromagnetic differential system is used for the differential. The permanent magnet DC motor is selected as the counter-rotating and dragging dual-rotor motor. for internal combustion engine vehicles.

[0054] Compared with Example 1, the dual-rotor permanent-magnet DC motor with counter-rotating dragging uses permanent magnets instead of excitation windings as a constant magnetic field source, which can improve the volume, weight, loss and heat of the motor, and its structure is simple and easy Easy to process. There are many types of permanent magnet materials used in the motor, such as general-purpose ferrite, aluminum-nickel drill, rare earth permanent magnet, bonded permanent magnet, etc., and this embodiment is ferrite. The shape of the permanent magnet material generally also has ring shape, tile shape, fan shape, square etc., and the present embodiment is tile shape. According to the performance requirements of internal combusti...

Embodiment 3

[0056] The vehicle multifunctional electromagnetic differential system is used for the differential. The series-excited DC motor is selected as the counter-rotating dragging double-rotor motor. For pure electric vehicles.

[0057] Series excited DC motor has the characteristics of high speed, small size, light weight, and convenient speed regulation, so it is used as a power source in many electric tools. The double-rotor motor in this system can also choose this type of motor. However, the series motor is more prone to stall and the armature temperature rises sharply. Therefore, when using series excited motors, relatively high requirements should be put forward in terms of manufacturing quality, and reasonable control strategies and safety protection measures should be used. The motor is controlled by a common DC controller. The structure and working principle of the system are the same as those in Embodiment 1.

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Abstract

The invention relates to a multifunctional electromagnetic speed differential system which can be used a drive speed differential integrated system of electric power vehicle and mixed power vehicle, and as a speed baffle used in the driven bridge of traditional vehicle. The invention comprises a dual-rotor motor and a controller. Wherein, the dual-rotor motor is formed by a outer rotor and a inner rotor coiled by excitation winding and; one rotor via connection device is connected to the wheels on one side; another rotor via steering gear and connection device is connected to the wheel on another side; the excitation winding of outer rotor via sliding ring is connected to the controller; and the controller is connected to vehicle power resource. The invention can reduce mechanical transmission to attain high transmission efficiency, smaller size and lighter weight.

Description

technical field [0001] The invention relates to the field of differential speed and auxiliary braking of motor vehicles, in particular to the power differential system of various pure electric vehicles and hybrid electric vehicles, especially the integration of traditional vehicle-mounted power sources (engines, motors) and differentials into one set The multifunctional power differential system, the invention also relates to the field of vehicle auxiliary braking. Background technique [0002] At present, various electric vehicles and hybrid vehicles are developing rapidly, but many existing electric vehicles or hybrid vehicles are composed of electric motors and other power components on the basis of the transmission system of traditional vehicles. technology, but it greatly reduces the performance of electric vehicles. Such as figure 1 As shown, the traditional open differential is a typical planetary gear set structure, including planetary carrier 1, planetary gear 2, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/12B60L15/20
CPCY02T10/72
Inventor 罗玉涛黄向东周斯加赵克刚杨荣山
Owner SOUTH CHINA UNIV OF TECH
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