CN207274416U - A kind of four-wheel driving electric vehicle transmission system - Google Patents

A kind of four-wheel driving electric vehicle transmission system Download PDF

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Publication number
CN207274416U
CN207274416U CN201721205188.9U CN201721205188U CN207274416U CN 207274416 U CN207274416 U CN 207274416U CN 201721205188 U CN201721205188 U CN 201721205188U CN 207274416 U CN207274416 U CN 207274416U
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CN
China
Prior art keywords
control unit
motor
output terminal
wheel hub
front wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201721205188.9U
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Chinese (zh)
Inventor
龚文资
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Institute of Commerce
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Wuxi Institute of Commerce
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Filing date
Publication date
Application filed by Wuxi Institute of Commerce filed Critical Wuxi Institute of Commerce
Priority to CN201721205188.9U priority Critical patent/CN207274416U/en
Application granted granted Critical
Publication of CN207274416U publication Critical patent/CN207274416U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The utility model discloses a kind of four-wheel driving electric vehicle transmission system, including power battery, its first output terminal is connected with control unit, its second output terminal is connected with DC/DC converters;The output terminal of the DC/DC converters is connected with booster battery, and the output terminal of the booster battery is connected by ignition switch with control unit;The input terminal of described control unit also respectively with provided steering wheel rotation direction and angle to control unit steering wheel angle sensor, to control unit provide whether stepping on accelerator pedal and the degree signal stepped on accelerator pedal position sensor, driving switch, the braking of gear information are provided to control unit when the brake switch of brake signal is provided to control unit, and the vehicle speed sensor connection of speed signal is provided to control unit;The output terminal of described control unit is connected with wheel hub motor and rear driving motor.The utility model can realize a variety of drive forms such as rear-guard, four-wheel drive, to adapt to the needs of different road driving conditions.The utility model is easy to implement energy regenerating, improves the economy of automobile.

Description

A kind of four-wheel driving electric vehicle transmission system
Technical field
It the utility model is related to a kind of four-wheel driving electric vehicle transmission system.
Background technology
Electric automobile has the advantages that energy-saving and environmental protection, good economy performance, and existing electric automobile has the driving sections such as differential mechanism Part, makes vehicle transmission structure more complicated, adds vehicle weight, reduce transmission efficiency.Existing electric automobile can not be realized Energy regenerating, high energy consumption.
Utility model content
The utility model aim is to provide a kind of four-wheel driving electric vehicle power train in view of the defects existing in the prior art System.
The utility model to achieve the above object, adopts the following technical scheme that:A kind of four-wheel driving electric vehicle power train System, including power battery, its first output terminal are connected with control unit, its second output terminal is connected with DC/DC converters;It is described The output terminal of DC/DC converters is connected with booster battery, and the output terminal of the booster battery passes through ignition switch and control Unit connects;The input terminal of described control unit is also respectively with providing the steering of steering wheel rotation direction and angle to control unit Disk angular transducer, to control unit provide whether stepping on accelerator pedal and the degree signal stepped on accelerator pedal position sensor, The brake switch of brake signal is provided when driving switch, the braking of gear information are provided to control unit to control unit, and The vehicle speed sensor connection of speed signal is provided to control unit;The output terminal of described control unit is electric with left front wheel hub respectively Machine, off-front wheel hub motor are connected with rear driving motor;It is described after driving motor output terminal by differential mechanism respectively with left back car Wheel is connected with right rear wheel;Wherein, the power battery is high voltage power supply, it is used for for the high voltage device in described control unit Working power is provided, while voltage, electricity, temperature and current information are fed back into control unit;The DC/DC converters DC/ DC converters are used to the high voltage direct current of the power battery being converted into 12V DC electricity, charge to the booster battery;Institute It is low-tension supply to state booster battery, its magnitude of voltage is 12V, and working power is provided for described control unit and each sensor.
Further, the left front wheel hub motor, off-front wheel hub motor and rear driving motor are permanent magnet brushless dc Motivation, when work, are separate;Any one motor is in the left front wheel hub motor, off-front wheel hub motor and rear driving motor During drive pattern, control unit controls the rotation direction of the wheel hub motor and rotating speed size by controlling phase sequence with frequency.
Further, described control unit can control the left front wheel hub motor, off-front wheel hub motor and after drive motor In any one motor when being in power generation operation pattern, the part kinetic energy that vehicle travels can be converted into electric energy, and store to dynamic In power battery.
Further, the left front wheel hub motor, off-front wheel hub motor and rear driving motor can be by respective rotor-positions Control unit is fed back to motor temperature technical parameter, control unit is controlled corresponding motor, and is sent out in corresponding motor Starting protection pattern during raw misoperation.
The beneficial effects of the utility model:1) a variety of drive forms such as rear-guard, four-wheel drive can be achieved, to adapt to not people having a common goal The needs of road driving conditions.(2) energy regenerating is easy to implement, improves the economy of automobile.
Brief description of the drawings
The operation principle schematic diagram of Fig. 1 the utility model.
Embodiment
Shown in Fig. 1, be related to a kind of four-wheel driving electric vehicle transmission system, including power battery, its first output terminal with Control unit connects, its second output terminal is connected with DC/DC converters;The output terminal of the DC/DC converters and auxiliary electric power storage Pond connects, and the output terminal of the booster battery is connected by ignition switch with control unit;The input terminal of described control unit Also it is with providing the steering wheel angle sensor of steering wheel rotation direction and angle to control unit, being provided to control unit respectively The accelerator pedal position sensor of no stepping on accelerator pedal and the degree signal stepped on, the gear to control unit offer gear information are opened The brake switch of brake signal is provided when closing, braking to control unit, and the speed biography of speed signal is provided to control unit Sensor connects;The output terminal of described control unit is connected with left front wheel hub motor, off-front wheel hub motor and rear driving motor respectively; The output terminal of driving motor is connected with rear left wheel and right rear wheel respectively by differential mechanism after described;Wherein, the power electric Pond is high voltage power supply, it is used to provide working power for the high voltage device in described control unit, while by voltage, electricity, temperature Degree and current information feed back to control unit;The DC/DC converters DC/DC converters are used for the high pressure of the power battery Direct current is converted into 12V DC electricity, charges to the booster battery;The booster battery is low-tension supply, its magnitude of voltage For 12V, working power is provided for described control unit and each sensor.
Table 1 is the action principle of each critical piece in the utility model.
Table 1
Operation principle and the course of work:Ignition switch closes, and electric automobile enters working status.Control unit is according to steering The signal of the sensors such as disk angle, accelerator pedal position, gear, braking, speed, by analyzing, calculating definite each wheel hub motor The pattern for whether working and working.
When anxious deceleration, braking or speed exceed the max. speed set when driving for vehicle advance, control unit automatically will The operating mode of wheel hub motor switchs to energy recuperation mode, and vehicle energy switchs to electric energy, to power battery charging.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality Within new spirit and principle, any modification, equivalent replacement, improvement and so on, should be included in the guarantor of the utility model Within the scope of shield.

Claims (4)

  1. A kind of 1. four-wheel driving electric vehicle transmission system, it is characterised in that including power battery, its first output terminal and control Unit connects, its second output terminal is connected with DC/DC converters;The output terminal of the DC/DC converters connects with booster battery Connect, the output terminal of the booster battery is connected by ignition switch with control unit;The input terminal of described control unit also divides Not with providing the steering wheel angle sensor of steering wheel rotation direction and angle to control unit, providing and whether step on to control unit The accelerator pedal position sensor of accelerator pedal and the degree signal stepped on, to control unit provide gear information driving switch, The brake switch of brake signal is provided during braking to control unit, and the vehicle speed sensor of speed signal is provided to control unit Connection;The output terminal of described control unit is connected with left front wheel hub motor, off-front wheel hub motor and rear driving motor respectively;It is described The output terminal of motor is driven to be connected respectively with rear left wheel and right rear wheel by differential mechanism afterwards;Wherein, the power battery is High voltage power supply, it is used to provide working power for the high voltage device in described control unit, at the same by voltage, electricity, temperature and Current information feeds back to control unit;The DC/DC converters are used to the high voltage direct current of the power battery being converted into 12V Direct current, charges to the booster battery;The booster battery is low-tension supply, its magnitude of voltage is 12V, is the control Unit and each sensor provide working power.
  2. A kind of 2. four-wheel driving electric vehicle transmission system as claimed in claim 1, it is characterised in that the left front wheel hub electricity Machine, off-front wheel hub motor and rear driving motor are brushless, permanently excited direct current motor, and when work is separate;The left front wheel hub When any one motor is drive pattern in motor, off-front wheel hub motor and rear driving motor, control unit is by controlling phase sequence The rotation direction of the wheel hub motor and rotating speed size are controlled with frequency.
  3. 3. a kind of four-wheel driving electric vehicle transmission system as claimed in claim 1, it is characterised in that described control unit can Control the left front wheel hub motor, off-front wheel hub motor and drive any one motor in motor to be in power generation operation pattern afterwards When, the part kinetic energy that vehicle travels can be converted into electric energy, and store to power battery.
  4. A kind of 4. four-wheel driving electric vehicle transmission system as claimed in claim 1, it is characterised in that the left front wheel hub electricity It is single that respective rotor-position and motor temperature technical parameter can be fed back to control by machine, off-front wheel hub motor and rear driving motor Member, makes control unit be controlled corresponding motor, and the starting protection pattern when corresponding motor is abnormal operation.
CN201721205188.9U 2017-09-13 2017-09-13 A kind of four-wheel driving electric vehicle transmission system Withdrawn - After Issue CN207274416U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721205188.9U CN207274416U (en) 2017-09-13 2017-09-13 A kind of four-wheel driving electric vehicle transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721205188.9U CN207274416U (en) 2017-09-13 2017-09-13 A kind of four-wheel driving electric vehicle transmission system

Publications (1)

Publication Number Publication Date
CN207274416U true CN207274416U (en) 2018-04-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721205188.9U Withdrawn - After Issue CN207274416U (en) 2017-09-13 2017-09-13 A kind of four-wheel driving electric vehicle transmission system

Country Status (1)

Country Link
CN (1) CN207274416U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109080560A (en) * 2018-08-27 2018-12-25 上海精虹新能源科技有限公司 A kind of pure electric automobile DCDC control system and control method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109080560A (en) * 2018-08-27 2018-12-25 上海精虹新能源科技有限公司 A kind of pure electric automobile DCDC control system and control method

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Granted publication date: 20180427

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Granted publication date: 20180427

Effective date of abandoning: 20220530