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Electric vehicle wheel hub system and driving, braking and electric energy compensation method for the same

An electric wheel hub, electric vehicle technology, applied in electric vehicles, motors, electromechanical devices, etc.

Inactive Publication Date: 2016-07-27
NANJING MENGQI INTELLIGENT TECH +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 with a structure different from the traditional design, which is 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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  • Electric vehicle wheel hub system and driving, braking and electric energy compensation method for the same
  • Electric vehicle wheel hub system and driving, braking and electric energy compensation method for the same
  • Electric vehicle wheel hub system and driving, braking and electric energy compensation method for the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] A wheel hub system of a power-assisted electric tricycle, including an electric hub device 13, a battery pack 8 and a range-extending system 16; the electric hub device is arranged on the front wheel, and its supporting frame 4 and mechanical partial schematic structure are as follows: Figure 10a As shown; the battery pack 8 selects a nominal 48V20Ah lead-acid gel battery and is installed on the lower part of the frame; the range-extending system uses a methanol generator system as an electric energy supplement device 18, and the generator system consists of a methanol fuel tank, a methanol internal combustion engine, and a generator It is combined with a rectifying device; 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...

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 implemented using pulse digital technology, and the core module includes a conventional CPU and a drive module with a design power of 1500W. 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...

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 when the sensing unit 3c senses the rotor unit 3b around the shaft to 5 degrees to The time period for the 0 position.

[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, the last leve...

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PUM

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Abstract

The invention discloses an electric vehicle wheel hub system, comprising an electric wheel hub device, a battery group and a range increasing system; the electric hub device comprises a power supply modulator, a deceleration / bending moment device, a wheel hub, a driving operation device and at least one set electric device; the electric device comprises a coaxial rotor, at least one stator unit and a plurality of rotor units; the coaxial rotor is an annular mechanical ring having a rotation axis; the rotor unit comprises at least one permanent magnet rotor unit and at least one magnetizer rotor unit, which is arranged on the coaxial rotor; the stator unit is installed in the coaxial rotor and the air gas between the stator unit and the coaxial rotor is not greater than 40mm; the coaxial rotor is coaxially arranged with the wheel hub; the electric device and the deceleration / bending moment device are arranged inside the wheel hub; the power supply modulator obtains a user order and outputs time sequence current through driving the control device / electromagnetic braking device and realizes the driving / braking of the electric hub device; and the range increasing system compensates the electric energy to the battery group.

Description

technical field [0001] The invention relates to the field of power supply power design of electric bicycles, in particular to a driving and braking method of an electric device controlled by sequential current and a range-extending design method of a matching electric vehicle. Background technique [0002] The mainstream of the domestic electric bicycle market is to use electric wheels. This type of electric wheel actually deforms the traditional electric motor on the shaft into the hub, and extends the rotor design to transmit the torque to the rim through a mechanical device. Strictly speaking, the 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 rim more. The hub described in this manual covers the hub and the rim in the narrow sense. [0003] Wheel hub motor technology is also known as wheel built-in motor technology. Its biggest feature is the integration of power, transmissi...

Claims

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Application Information

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IPC IPC(8): H02K16/00H02K1/27H02P6/16B60L11/18
CPCY02T10/64
Inventor 刘粤荣刘通
Owner NANJING MENGQI INTELLIGENT TECH
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