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Integrated electric wheel drive unit for electric automobile

An integrated electric wheel and electric vehicle technology, applied in the direction of electric vehicles, electromechanical devices, power devices, etc., can solve the problems of reducing the axial space of the wheel and increasing the axial size of the hub motor, and achieves compact structure, easy installation, and improved The effect of transmission efficiency

Inactive Publication Date: 2009-10-28
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The outer rotor hub motor can be installed with a variety of brake discs, and by setting a positioning boss on the outer rotor hub motor, a variety of different types of brake discs can be installed to realize the integration of driving and braking. The brake disc is installed on the end face of the hub motor, which increases the axial size of the hub motor, thus further reducing the axial space of the wheel and limiting the movement space of the wheel

Method used

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  • Integrated electric wheel drive unit for electric automobile
  • Integrated electric wheel drive unit for electric automobile
  • Integrated electric wheel drive unit for electric automobile

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 1 As shown, the integrated electric wheel drive device for electric vehicles of the present invention includes a disc motor 1 , a motor controller 2 , a battery pack 3 , a vehicle control unit ECU4 and an axle 5 . The disc motor 1 is installed in the tire 13 through the axle 5; the disc motor 1 includes a stator 9, a rotor 15, a brake caliper 14, a permanent magnet 11, a stator winding 10, a motor rotor shaft 16 and a motor housing 12; the stator winding 10 Wound on the stator 9, the permanent magnet 11 is attached to the rotor 15, which is located on the opposite side of the stator 9; the brake caliper 14 is fixed on the motor casing 12, and cooperates with the rotor 15 to brake the rotation of the rotor; the rotor 15 is fixed on the rotor shaft of the motor One end of 16, the other end of motor rotor shaft 16 is fixed on the wheel hub 18 of tire 13 through bearing 17; 6 and shock absorber 7 are connected with frame 8. The vehicle control unit ECU4, th...

Embodiment 2

[0033] figure 2 It is a schematic diagram of the driving device used to realize the four-wheel drive pure electric vehicle. The four-wheel drive electric vehicle does not need to use a traditional engine, so the emission is zero, and it is a new type of pollution-free vehicle. Such as figure 2 Shown: each wheel has a figure 1In the electric drive device shown, the motor controller 2 controls each wheel electric drive device individually. The battery pack 3 is a storage battery, and the vehicle-mounted DC / DC 19 is a power electronic device, which is connected with the motor controller 2 at a high voltage, and is used to control the voltage of the disc motor. The vehicle control unit ECU4 is connected to the battery pack 3, the motor controller 2 and the stator 9 sequentially through a high-voltage wire harness, and the vehicle control unit ECU4 is also connected to the motor controller 2 for signals, and the motor controller 2 is respectively connected to the four wheel ele...

Embodiment 3

[0039] image 3 It is a schematic diagram of the principle used to realize the driving device of the front-drive pure electric vehicle. Like Embodiment 1, it does not need to use a traditional engine, and the emission is zero. It is a new type of non-polluting vehicle. Such as image 3 As shown, each wheel of the front axle is equipped with figure 1 In the electric drive device shown, the motor controller 2 controls the two wheel electric drive devices separately. The rear axle is a non-drive axle, using a differential 20 and a transmission shaft 21 to connect the two wheels to realize the differential function of the axle. Other structural forms and control functions are similar to Embodiment 1.

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Abstract

The invention discloses an integrated electric wheel drive unit for an electric automobile, which comprises a disc motor, a motor controller, a battery unit, a whole vehicle electronic control unit ECU, a vehicle bridge and a brake caliper, wherein the brake caliper is fixed on a motor shell and matched with a rotor and brakes the rotor to rotate; the rotor is fixed at one end of a motor rotor shaft, while the other end is fixed on a vehicle wheel hub of a tire through a bearing; a stator is fixed on the motor shell which is fixed with the vehicle bridge; the whole vehicle electronic control unit ECU, the battery unit, the motor controller and the stator are connected with each other in turn through a high voltage wire bale; and the whole vehicle electronic control unit ECU is also in signal connection with the motor controller which is in signal connection with the brake caliper. The invention saves the conventional clutch, the conventional gear box, the conventional main speed reducer, the conventional differential mechanism and other components, simplifies the structure of the whole vehicle, improves the transmission efficiency, and can realize the electronic differential speed control of an electric wheel by control technology.

Description

technical field [0001] The invention relates to an integrated electric wheel driving device for an electric vehicle, in particular to a disc motor driving device integrating driving and braking. technical background [0002] Electric wheel drive electric vehicles have the advantages that centralized motor drive electric vehicles cannot compare with traditional electric vehicles, and are considered to be an ideal choice for high-end fuel cell vehicles in the future. car research. [0003] Electric wheel drive electric vehicles do not need transmissions, differentials, ball universal joints, half shafts and other components, and the motor (motor + reduction mechanism) is directly placed inside the rim, so that the structure is compact and the internal space utilization of the body is high. The center of gravity of the whole vehicle is lowered, and the driving stability of the vehicle is improved; and because the power transmission chain is short (or directly drives the wheels...

Claims

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Application Information

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IPC IPC(8): B60K7/00B60R16/02B60L7/00H02K7/10
CPCY02T10/641Y02T10/64
Inventor 罗玉涛旷鹏谭迪
Owner SOUTH CHINA UNIV OF TECH
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