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Extended-range electric bicycle and driving, braking and electric energy supplementing method thereof

An electric vehicle and range-extending technology, which is applied in the fields of braking, range-extending electric vehicles, mechanical structure and its drive, to achieve the effects of simple structure, short mileage and low cost

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 defect that the existing electric vehicle is limited to a motor with a unit structure and a power supply mode to reverse the current direction, and to provide an electric device with separate mechanical devices on the frame and wheels, controlled by sequential power supply, and at the same time provide A range-extending technical solution with simple structure, large torque and easy process

Method used

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  • Extended-range electric bicycle and driving, braking and electric energy supplementing method thereof
  • Extended-range electric bicycle and driving, braking and electric energy supplementing method thereof
  • Extended-range electric bicycle and driving, braking and electric energy supplementing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] A power-assisted electric range-extending two-wheeled vehicle, comprising an electric device 13 battery pack 8 and a range-extending system 16; Figure 2a As shown; the battery pack 8 of the electric vehicle selects a nominal 24V10Ah lithium iron phosphate battery and is installed inside 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 , a generator and a rectifier; 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 As for the power supply device, its output terminal 17b is electrically connected to the positive and negative poles of the battery pack. ...

Embodiment 2

[0104] 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 550W. 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

[0108] The aforementioned example is added with an electromagnetic brake function.

[0109] The power supply modulator correspondingly adds a braking signal input terminal 1e to be electrically connected to the electromagnetic braking device 9b, and the electromagnetic braking device is a ten-stage rheostat, such as Figure 5c shown. The braking logic of the power modulator is: when the manual control electromagnetic brake device sends out a braking signal, the power modulator cuts off the T 1 corresponding to the timing current while starting T 2 The time domain is powered on, and the brake power supply time domain is set to from 5 degrees The time period to the 0 degree position.

[0110] The brake current output by the power modulator corresponds to the ten-level resistance setting of the electromagnetic braking device 9b as ten-level intensity, and the set output current intensity is: the first level is 3A, the last level is 11A, and the ten-level current is set on a...

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PUM

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Abstract

The invention discloses an extended-range electric bicycle which comprises a power supply modulator, a battery pack, a range extending system, a driving control device, a frame and at least one wheel. The wheels of the electric bicycle are provided with an electric device in a matched mode; the electric device comprises at least one stator unit and a plurality of rotor units; the stator units are installed on the portions, close to bicycle rims, of the frame; the rotor units comprise at least one permanent magnet rotor unit and at least one magnetizer rotor unit which are arranged on the bicycle rims in a combined mode, and the size of periodic relative air gaps formed by the rotor units and the stator units is not larger than 90 mm; the magnetic pole directions of the permanent magnet rotor units arranged on the bicycle rims are same; the power supply modulator acquires user commands through the driving control device or an electromagnetic braking device and correspondingly outputs timing sequence currents to drive or brake the wheels; the range extending system of the electric bicycle supplements electric energy to the battery pack.

Description

technical field [0001] The invention relates to the field of power supply design for electric vehicles, in particular to a mechanical structure in which an electric device is separately arranged on a vehicle frame and a wheel, a driving and braking method thereof, and a range-extending method of an electric vehicle. Background technique [0002] The market ownership of electric bicycles in my country has reached more than 150 million. In 2013, the output of electric tricycles exceeded 10 million. Regional electric four-wheelers are developing rapidly. Electric vehicles in the market are generally equipped with permanent magnet brushless motors, and the accessories industry chain is mature. At present, they are developing from general-purpose to professional design. The power controllers equipped with them also try to use pulse modulation technology to reduce the reactive power loss of the motor during operation. . [0003] In recent years, PWQ technology has been widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/12B60L15/00B62M6/40B60L50/15
CPCY02T10/70
Inventor 刘粤荣姚飞
Owner NANJING MENGQI INTELLIGENT TECH
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