Hub motor driving system of double-rotor motor integrated drum brake

A dual-rotor motor, drum brake technology, applied in the direction of brakes, brake components, motion deposition, etc., can solve the problems of deteriorating the driving comfort and handling stability of electric vehicles, increasing the unsprung mass and the moment of inertia of the wheel hub, etc. Improve system efficiency and power density, compact structure, improve power density and efficiency

Inactive Publication Date: 2019-03-08
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the hub motor drive system greatly increases the unsprung mass and hub moment of inertia, which deteriorates the driving comfort and handling stability of electric vehicles to a certain extent.

Method used

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  • Hub motor driving system of double-rotor motor integrated drum brake
  • Hub motor driving system of double-rotor motor integrated drum brake

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Experimental program
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Embodiment

[0023] The hub motor drive system of this dual-rotor motor integrated drum brake is mainly composed of hub bearing 1, brake drum 2, rotor support plate 3, rim 4, heat dissipation plate 5, support sleeve 6, outer rotor 7, sealing ring 8, stator Assembly 9, outer stator winding 9A, inner stator winding 9B, stator support plate (including cooling water channel) 10, inner rotor 11, brake actuator (brake shoe, brake wheel cylinder, etc.) 12, brake base plate 13.

[0024] Such as figure 1 and 2 As shown, the dual-rotor motor and the drum brake are integrated in the rim of the drive wheel. The double-rotor motor is mainly composed of outer rotor 7, outer stator assembly 9, stator support plate (including cooling water channel) 10, inner stator winding 9B, inner rotor 11 and other components. The drum brake is mainly composed of brake base plate 13, brake actuator 12 (brake shoe, brake wheel cylinder, etc.), brake drum 2 and other components. The outer rotor 7 and the inner rotor 1...

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Abstract

The invention relates to a hub motor driving system of a double-rotor motor integrated drum brake. The system comprises a hub bearing, a wheel rim, a double-rotor motor and the drum brake, wherein thedouble-rotor motor and the drum brake are arranged in the wheel rim. Compared with the prior art, the system has the advantages of being high in power, compact in structure, low in loss and the like.

Description

technical field [0001] The invention relates to the field of driving and braking of a wheel hub motor of an electric vehicle, in particular to a wheel hub motor drive system with a dual-rotor motor integrated with a drum brake. Background technique [0002] According to the structural form, the drive system of electric vehicles can be divided into two types: centralized drive system and distributed wheel drive system. Compared with the centralized drive system, the main structural feature of the distributed wheel drive system is that the drive motor is directly installed in or near the drive wheel, which has the advantages of short drive transmission chain, efficient transmission, and compact structure. The torque is independently controlled by the wheel motors, which is conducive to the realization of high-performance vehicle dynamics control. [0003] The structural schemes of the distributed wheel drive system can be divided into two categories: the high-speed wheel moto...

Claims

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Application Information

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IPC IPC(8): B60K7/00B60T1/06
CPCB60K7/0007B60K2007/0038B60K2007/0092B60T1/067
Inventor 孟德建陈辛波张立军徐杰
Owner TONGJI UNIV
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