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Wheel hub system for electric vehicle, and method for driving, braking and supplementing electric energy to system

An electric wheel hub and electric vehicle technology are applied in the driving of electric devices, the range extension design of electric vehicles, and the braking field to achieve the effects of low cost, short continuation mileage and simple structure.

Inactive Publication Date: 2016-07-27
刘粤荣 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the wheel hub motors used in the existing electric vehicles, to provide an electric wheel hub device that is different from the traditional structure and controlled by sequential current, and to provide an electric vehicle based on supplementing electric energy during driving. Advanced range-extending technology scheme, simple structure, large torque, and easy process

Method used

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  • Wheel hub system for electric vehicle, and method for driving, braking and supplementing electric energy to system
  • Wheel hub system for electric vehicle, and method for driving, braking and supplementing electric energy to system
  • Wheel hub system for electric vehicle, and method for driving, braking and supplementing electric energy to system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] A hub system for a power-assisted electric two-wheeled vehicle, comprising an electric hub device 13, a battery pack 8 and a range-extending system 16; Figure 10a As shown; the battery pack 8 selects a nominal 24V10Ah lithium iron phosphate battery and is installed inside the horizontal bar of the vehicle frame; the range-extending system uses a methanol generator system as an electric energy supplementary device 18, and the generator system consists of a methanol fuel tank, a methanol internal combustion engine, The generator and the rectifier are combined; the logic charging device 17 of the range-extending system is mainly composed of functional modules such as a battery pack real-time voltage monitoring module, a constant voltage limited current charging module and a working logic control module, and its input terminal 17a is electrically connected to the electric energy The supplementary device, its output terminal 17b is electrically connected to the positive and ...

Embodiment 2

[0110] The power supply device of the range-extending system in Example 1 is changed from a methanol generator system to an aluminum-air primary battery; the power modulator 1 is realized by pulse digital technology, and the core module includes a conventional CPU and a drive module with a design power of 800W. working logic like Figure 5b As shown, the pulse conversion conditioning circuit is mainly to complete the conversion of the pulse signal into a ladder wave signal, the pulse signal generator mainly generates the required pulse signal, and secondly outputs the peak pulse through the differential circuit, and then passes through the limiting circuit to convert the negative of the peak pulse The half-cycle is filtered out, and the positive half-axis peak pulse is left. The integral circuit composed of an integrated operational amplifier is used for integral accumulation, and a voltage comparator and a control circuit are added to form a complete ladder pulse signal, and t...

Embodiment 3

[0114] Using T on the basis of Example 2 2 Time-domain electrification adds an electromagnetic force braking function to the electric hub device.

[0115] The power supply modulator correspondingly adds a braking signal input terminal 1e to electrically connect the electromagnetic braking device 9b, such as Figure 5c As shown, the electromagnetic braking device is a ten-stage rheostat; when the manual control electromagnetic braking device sends a braking signal, the power modulator cuts off T 1 corresponding to the timing current, start T 2 Time domain energization, the brake energization time domain is set in the time period when the sensing unit 3c senses the rotor unit 3b around the axis to the position where θ is 15 degrees to θ is 0.

[0116] The brake current output by the power modulator corresponds to the ten-level resistance of the electromagnetic braking device 9b, which is set to ten-level intensity. The set output current intensity is: the first level is 5A, th...

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Abstract

The invention relates to a wheel hub system for an electric vehicle. The system comprises a motor wheel chair hub device, a battery pack and a range extending system. The motor wheel chair hub device includes a wheel hub, a deceleration / torque-varying device, a power supply modulator, a drive control device and at least one set of electric device. The electric device comprises a coaxial rotating body, at least one stator unit and a plurality of rotor units. The coaxial rotating body is in the form of an annular mechanical ring with a rotating shaft. Each rotor unit comprises at least one permanent magnet rotor unit and at least one magnetizer rotor unit, and is arranged on the coaxial rotating body. The stator unit is arranged inside the coaxial rotating body and the air gap thereof is not larger than 55 mm. The coaxial rotating body and the wheel hub are coaxially arranged. The electric device and the deceleration / torque-varying device are arranged inside the wheel hub. The power supply modulator acquires a user instruction through the drive control device / electromagnetic brake device and then outputs a timing current. In this way, the driving / braking effect of the motor wheel chair hub device is realized. The range extending system supplies power to the battery pack.

Description

technical field [0001] The invention relates to the field of power design of electric bicycles, in particular to a method for driving and braking an electric device controlled by periodic time-sequence currents and a method for designing range-extending electric vehicles matched with it. Background technique [0002] At present, the mainstream of the electric bicycle market is to use electric wheels. This type of electric wheel actually deforms the electric motor installed on the shaft in the wheel hub, and extends the rotor design to transmit the torque to the rim through a mechanical device. Strictly speaking, The wheel hub in the narrow sense refers to the flange, bearing seat and other parts connected to the drive shaft. At present, domestic users refer to the wheel rim more. The wheel hub described in this manual covers the two parts of the wheel hub and the rim in the narrow sense. [0003] Hub motors, also known as built-in wheel motors, are not a new thing. As early ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/00H02K1/27H02P6/16B60L11/18
CPCY02T10/64Y02T10/70
Inventor 刘粤荣陈方
Owner 刘粤荣
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