CN204089254U - A kind of electric automobile whole control device - Google Patents
A kind of electric automobile whole control device Download PDFInfo
- Publication number
- CN204089254U CN204089254U CN201420473575.0U CN201420473575U CN204089254U CN 204089254 U CN204089254 U CN 204089254U CN 201420473575 U CN201420473575 U CN 201420473575U CN 204089254 U CN204089254 U CN 204089254U
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- control unit
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of electric automobile whole control device, comprise full-vehicle control unit, digital intelligent display screen, motor control unit, drive motors, power battery pack and battery management unit; Full-vehicle control unit is connected with digital intelligent display screen, motor control unit and battery management unit respectively by communication bus; Drive motors is bi-directionally connected respectively by signal wire harness, power supply wire harness and motor control unit; Battery management unit is connected with power battery pack by detection signal wire harness.Battery management unit comprises multiple single power battery protective circuit, low electricity alarm signal drive circuit, discharge prevention signal drive circuit and charge protection signal drive circuit, and described full-vehicle control unit comprises Master control chip, power supply input and interface circuit, separation sensor signal input interface circuit, communication interface and digital intelligent display screen output interface circuit.The utility model improves security performance, energy savings, low-carbon environment-friendly.
Description
Technical field
The utility model relates to Control of Electric Vehicles field, particularly relates to a kind of electric automobile whole control device.
Background technology
In recent years, urban transport problems is day by day subject to people and pays close attention to, although automobile, motorcycle, etc. popularize gradually in the world because it has the advantage such as easy to use as walking-replacing tool, but along with the continuous increase of city automobile, motorcycle recoverable amount, the problem of problem of environmental pollution and energy aspect is also day by day serious.Along with the continuous progress of novel high-energy secondary cell technology especially lithium-ion-power cell technology, the technological development of battery-operated motor cycle, electric bicycle, electric bicycle, electric recreation vehicle and applying comes into one's own day by day.
The novel high-energy such as lithium ion battery, Ni-MH battery secondary cell is relative to lead-acid battery, and its energy Ratios density improves greatly, does not have environmental pollution, more and more applied, along with the maturation of technology and the expansion of market scale, its price also will significantly reduce, and will replace lead-acid battery.But because the novel high-energy such as lithium battery, Ni-MH battery secondary cell Property comparison enlivens; strict requirement is had to the voltage of discharge and recharge, electric current and operational environment; overcharge or cross to put and all can cause its permanent damage; even bring potential safety hazard; ensure electrokinetic cell normally for motor vehicle provides drive energy; must whole-control system be equipped with, its operation is managed and protected.Employing lithium-ion-power cell is the electric motor car driving administrating system of electric energy in the market, lack system, original with lead-acid battery be electric energy drive system of electric motor vehicle on, merely add defencive function simply, defencive function simply is all adopted to complete to the management of drive energy and protection, both by the MOSFET in battery protection system as controlling battery pack to the medium of motor conveying capacity, simultaneously again or brownout too high as some monomer battery voltages in battery pack time battery protection system controls MOSFET shutoff battery pack major loop, to protect the performer of the safety of battery pack.Mainly there are three problems in these class methods:
(1) MOSFET is when big current works, and very easily damages because of overheated, cannot long-time stable, reliably working under conditions of high current; MOSFET is when turning off battery pack major loop, and because voltage is high, electric current conference produces larger surge impact, very easily damages the components and parts be directly electrically connected with it and on electric path; For proof load is balanced, battery protection system is while will being equipped with MOSFET, and also must be equipped with load balancing control module, technical sophistication, cost is higher;
(2) there is no energy feedback charge protection, easily cause battery to overcharge;
(3) lack battery low-electricity quantity alarm function, easily cause motor vehicle midway in advancing to be cast anchor, affect traffic safety.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of electric automobile whole control device, improves security performance, energy savings, low-carbon environment-friendly.
In order to achieve the above object, the technical solution adopted in the utility model is:
A kind of electric automobile whole control device, comprises full-vehicle control unit, digital intelligent display screen, motor control unit, drive motors, power battery pack and battery management unit;
Full-vehicle control unit is connected with digital intelligent display screen, motor control unit and battery management unit respectively by communication bus;
Drive motors is bi-directionally connected respectively by signal wire harness, power supply wire harness and motor control unit;
Battery management unit is connected with power battery pack by detection signal wire harness.
Preferably, described power battery pack consisted of serial or parallel connection multiple single power battery.
Preferably, described single power battery is lithium-ion-power cell or Ni-MH power cell.
Preferably; the described battery management unit be connected with power battery pack comprises multiple single power battery protective circuit, low electricity alarm signal drive circuit, discharge prevention signal drive circuit and charge protection signal drive circuit, and single power battery protective circuit detects output line by overcharging, mistake is put detection output line and is connected with charge protection signal drive circuit, discharge prevention signal drive circuit and low electricity alarm signal drive circuit respectively with low electric power detection output line.
Preferably, in described power battery pack, each single power battery correspondence arranges a single power battery protective circuit.
Preferably, described drive motors is asynchronous AC motor, permagnetic synchronous motor or brshless DC motor.
Preferably, described full-vehicle control unit comprises Master control chip, power supply input and interface circuit, separation sensor signal input interface circuit, communication interface and digital intelligent display screen output interface circuit; Power supply input and interface circuit, separation sensor signal input interface circuit, communication interface, digital intelligent display screen output interface circuit are connected with Master control chip respectively; Power supply input and interface circuit are connected with external power source; Separation sensor signal input interface circuit is connected with separation sensor; Communication interface is connected with battery management unit, motor control unit respectively; Digital intelligent display screen output interface circuit is connected with intelligent display screen.
Preferably, described separation sensor comprises rotating speed separation sensor, voltage separation sensor, current separation transducer and temperature separation sensor.
Compared with prior art, the beneficial effects of the utility model are:
(1) achieve the system interconnection of the critical components such as battery management unit, motor control unit, charger, carry out unified management by full-vehicle control unit, constitute the electric automobile whole-control system of control integration;
(2) power battery pack carries out monitoring and management by battery management unit, perform the charge and discharge protection to power battery pack, drive motors is undertaken controlling by motor control unit and manages, and full-vehicle control unit performs control and the management of car load rank, improves efficiency and the reliability of system;
(3) vehicle operating alarm can be shown by digital intelligent display screen, full-vehicle control unit controls battery management unit limits power battery pack discharging current, control electric machine control system restriction drive motors power output, tell that driver takes appropriate measures simultaneously, prevent vehicle midway from casting anchor, improve drive safety;
(4) energy feeding braking mode is adopted, effective 2 level system energy management modes; Full-vehicle control unit performs the energy management of car load level, and battery management unit and motor driven systems perform the energy management of power battery pack and drive motors respectively; Such as: in power battery pack quantity of electric charge fully loaded situation, overcharging of energy feedback possibility structure battery pair, needs to protect the battery of energy feedback charging, prevents battery overcharge.
Accompanying drawing explanation
Fig. 1 is device overall structure schematic diagram of the present utility model;
fig. 2 is full-vehicle control unit construction principle figure of the present utility model.
Embodiment
Be described in detail, to be interpretated more in-depth technical characteristic of the present utility model and advantage with reference to accompanying drawing below in conjunction with embodiment.
Device overall structure schematic diagram of the present utility model as shown in Figure 1, as shown in Figure 1, electric automobile control device is specially the electric automobile whole control device of control integration, and this device comprises: full-vehicle control unit 1, communication bus 2, digital intelligent display screen 3, communication bus 4, other control control screen in subelement 5(such as electric air-conditioning subsystem, amusements), motor control unit 6, signal wire harness 7, drive motors 8, power supply wire harness 9, power battery pack 10, detection signal wire harness 11 and battery management unit 12; Battery management unit 12 is connected with power battery pack 10 by detection signal wire harness 11; Motor control unit 6 is connected with drive motors 8 with signal wire harness 7 by power supply wire harness 9; Battery management unit 12, motor control unit 6 are controlled subelement 5 with other and are connected with full-vehicle control unit 1 by communication bus 4; Full-vehicle control unit 1 is connected with digital intelligent display screen 3 by communication bus 2.
Motor control unit 6 is connected with full-vehicle control unit 1 by communication bus 4, for sending the information such as drive motors operating current, power, temperature; Battery management unit 12 is connected with full-vehicle control unit 1 by communication bus 4, for sending the information such as low charge alert signal, low-voltage variation signal and high voltage protective signal.Performed to motor control unit 6 and battery management unit 12 by communication bus 4 output information after full-vehicle control unit 1 processes.The external digital intelligent display screen 3 of full-vehicle control unit 1, for showing vehicle operating information.
In the utility model, described power battery pack consisted of serial or parallel connection multiple single power battery.Described single power battery is lithium-ion-power cell or Ni-MH power cell.
As preferred embodiment of the present utility model, the described battery management unit 12 be connected with power battery pack 10 comprises multiple single power battery protective circuit, (shown low electricity is for arranging a threshold values for low electricity alarm signal drive circuit, when being then judged to be low electricity lower than this threshold values), discharge prevention signal drive circuit and charge protection signal drive circuit, single power battery protective circuit is by overcharging detection output line, cross put detect output line and low electric power detection output line respectively with charge protection signal drive circuit, discharge prevention signal drive circuit is connected with low electricity alarm signal drive circuit.In described power battery pack, each single power battery correspondence arranges a single power battery protective circuit.
Motor control unit 6 can select motor control unit market had with full-vehicle control unit and battery management unit communication function, and motor control unit comprises main control chip, power supply input circuit, E-Gas signal input interface circuit, electric brake signal input interface circuit, rotating speed, voltage, electric current, temperature signal input interface circuit, communication interface, motor control signal output interface circuit; Increase in main control chip and electronic differential counting circuit is set.Motor control signal output interface circuit, communication interface, rotating speed, voltage, electric current, temperature signal input interface circuit, electric brake signal input interface circuit, E-Gas signal input interface circuit.Power supply input circuit connects external power provides power supply guarantee for electric machine controller normally works; E-Gas signal input interface circuit is connected with E-Gas, and electric machine controller input is connected with efp, for obtaining E-Gas open position signal by E-Gas signal input interface circuit; Electric brake signal input interface circuit is connected with electric brake pedal, and electric machine controller input is connected with electric brake pedal, for obtaining electric brake open position signal by electric brake signal input interface circuit; Rotating speed, voltage, electric current, temperature signal input interface circuit are connected with the various kinds of sensors of rotating speed, voltage, electric current and temperature; Electric machine controller is connected with the various kinds of sensors of temperature with rotating speed, voltage, electric current, for obtaining rotating speed, voltage, electric current and state of temperature information by rotating speed, voltage, electric current, temperature signal input interface circuit.The driver intention that above input interface circuit gathers and travel condition of vehicle information, deliver to main control chip by the on-chip bus such as data wire or SPI, I2C.Communication interface is connected with vehicle other system; Motor control signal output interface circuit is connected with motor; Electric machine controller carries out data interaction by communication interface and vehicle other system, such as whole-control system, battery management system.Master control chip is connected with motor by motor control signal output interface circuit.As 48v series attached brushless DC motor of electric vehicle controller, ET24350W controller for electric vehicle etc.
Preferably, described drive motors is asynchronous AC motor, permagnetic synchronous motor or brshless DC motor.Drive motors rated operating range 300w to 15Kw, range of nominal tension 24V to 96V.
As shown in Figure 2, full-vehicle control unit 1 comprises Master control chip 13, power supply input and interface circuit 14, separation sensor signal input interface circuit 15, communication interface 16, digital intelligent display screen output interface circuit 17 to full-vehicle control unit construction principle figure of the present utility model; Power supply input and interface circuit 14, separation sensor signal input interface circuit 15, communication interface 16, digital intelligent display screen output interface circuit 17 are connected with Master control chip 13 respectively; Preferably, Master control chip 13 selects model to be the embedded microprocessor of STM32F205VG, has set up vehicle driving safety and control and car load level energy management unit in Master control chip 13.Power supply input and interface circuit 14, separation sensor signal input interface circuit 15, communication interface 16, digital intelligent display screen output interface circuit 17 can use reference class like parts corresponding in wagon control class application product.Power supply input and interface circuit 14 connect external power, and the separation sensors such as separation sensor signal input interface circuit 15 and rotating speed, voltage, electric current, temperature are connected.The travel condition of vehicle information that above input interface circuit gathers, delivers to Master control chip 13 by the on-chip bus such as data wire or SPI, I2C.Communication interface 16 is connected with other unit of vehicle and intelligent display screen respectively with digital intelligent display screen output interface circuit 17; Vehicle driving safety control information exports battery management unit, electric machine control system and other subelements to by communication interface 16 and performs after Master control chip 13.Energy management in vehicle travel process performs by exporting battery management unit, motor control unit and other subelements to by communication interface 16 after the car load level energy management unit process in Master control chip 13.Security alarm information exports intelligent display screen display to by digital intelligent display screen output interface circuit 17.
The utility model is applied to light-weight electric vehicle complete vehicle control system, its operation principle is as follows: light-weight electric Automobile Design speed per hour 60km/h, adopt the DC brushless motor of rated power 7.5W, power battery pack adopts the ferric phosphate lithium cell of 24 120AH to connect, rated voltage 72V.According to ferric phosphate lithium cell characteristic, monomer battery voltage high voltage protective value is set as 3.8V, and low-voltage variation value is set as 2.5V, and low charge alert voltage value is 2.8V.
In light-weight electric car running process, power battery pack 10 powers to electric automobile and each control unit, drives electric automobile to run.Battery management unit 12 monitors the state information such as each monomer battery voltage, electric current, temperature, electricity in power battery pack, export full-vehicle control unit 1 to by communication bus 4, full-vehicle control unit 1 exports digital intelligent display screen 3 to by communication bus 2 and shows; The state informations such as motor control unit 6 monitoring driving motor 8 electric current, temperature, rotating speed, moment of torsion export full-vehicle control unit 1 to by communication bus 4, and full-vehicle control unit 1 exports digital intelligent display screen 3 to by communication bus 2 and shows; The comprehensive battery management unit 12 of full-vehicle control unit 1, motor control unit 6 and other control subelement 5 running state information process, and export each control unit to and perform, travel and each system operational security to protect vehicle by communication bus 4.
Carry out clear, complete description by the technical scheme in above embodiment to the utility model, obviously described embodiment is the embodiment of the utility model part, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Claims (9)
1. an electric automobile whole control device, is characterized in that:
Comprise full-vehicle control unit, digital intelligent display screen, motor control unit, drive motors, power battery pack and battery management unit;
Full-vehicle control unit is connected with digital intelligent display screen, motor control unit and battery management unit respectively by communication bus;
Drive motors is bi-directionally connected respectively by signal wire harness, power supply wire harness and motor control unit;
Battery management unit is connected with power battery pack by detection signal wire harness.
2. electric automobile whole control device according to claim 1, is characterized in that: described power battery pack consisted of serial or parallel connection multiple single power battery.
3. electric automobile whole control device according to claim 2, is characterized in that: described single power battery is lithium-ion-power cell or Ni-MH power cell.
4. electric automobile whole control device according to claim 3; it is characterized in that: the described battery management unit be connected with power battery pack comprises multiple single power battery protective circuit, low electricity alarm signal drive circuit, discharge prevention signal drive circuit and charge protection signal drive circuit, single power battery protective circuit by overcharge detect output line, cross put detect output line be connected with charge protection signal drive circuit, discharge prevention signal drive circuit and low electricity alarm signal drive circuit respectively with low electric power detection output line.
5. electric automobile whole control device according to claim 4, is characterized in that: in described power battery pack, each single power battery correspondence arranges a single power battery protective circuit.
6. electric automobile whole control device according to claim 1, is characterized in that: described drive motors is asynchronous AC motor, permagnetic synchronous motor or brshless DC motor.
7. electric automobile whole control device according to claim 1, is characterized in that: described full-vehicle control unit comprises Master control chip, power supply input and interface circuit, separation sensor signal input interface circuit, communication interface and digital intelligent display screen output interface circuit; Power supply input and interface circuit, separation sensor signal input interface circuit, communication interface, digital intelligent display screen output interface circuit are connected with Master control chip respectively.
8. electric automobile whole control device according to claim 7, is characterized in that: described power supply input and interface circuit are connected with external power source; Separation sensor signal input interface circuit is connected with separation sensor; Communication interface is connected with battery management unit, motor control unit respectively; Digital intelligent display screen output interface circuit is connected with intelligent display screen.
9. electric automobile whole control device according to claim 8, is characterized in that: described separation sensor comprises rotating speed separation sensor, voltage separation sensor, current separation transducer and temperature separation sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420473575.0U CN204089254U (en) | 2014-08-21 | 2014-08-21 | A kind of electric automobile whole control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420473575.0U CN204089254U (en) | 2014-08-21 | 2014-08-21 | A kind of electric automobile whole control device |
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| CN204089254U true CN204089254U (en) | 2015-01-07 |
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| CN201420473575.0U Expired - Fee Related CN204089254U (en) | 2014-08-21 | 2014-08-21 | A kind of electric automobile whole control device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184191A (en) * | 2014-08-21 | 2014-12-03 | 广州益维电动汽车有限公司 | Whole vehicle control device and control method for electric vehicle |
| CN106921188A (en) * | 2015-12-24 | 2017-07-04 | 杭州骑客智能科技有限公司 | Electrodynamic balance car lithium battery explosion protection system |
| CN110126630A (en) * | 2019-05-23 | 2019-08-16 | 北京华盛源通科技有限公司 | A kind of electrical brake system and operation method of pure electric vehicle rail locomotive |
| CN110126852A (en) * | 2019-05-23 | 2019-08-16 | 北京华盛源通科技有限公司 | A kind of electrical system of pure electric vehicle rail locomotive |
| CN110329110A (en) * | 2019-08-06 | 2019-10-15 | 江西博能上饶客车有限公司 | A kind of cell safety control system and control method for electric motor coach |
| CN111993952A (en) * | 2019-05-27 | 2020-11-27 | 广州雷利诺车业有限公司 | Electric motorcycle and control method thereof |
-
2014
- 2014-08-21 CN CN201420473575.0U patent/CN204089254U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184191A (en) * | 2014-08-21 | 2014-12-03 | 广州益维电动汽车有限公司 | Whole vehicle control device and control method for electric vehicle |
| CN104184191B (en) * | 2014-08-21 | 2016-11-02 | 广州益维电动汽车有限公司 | A kind of electric automobile whole controls device and control method thereof |
| CN106921188A (en) * | 2015-12-24 | 2017-07-04 | 杭州骑客智能科技有限公司 | Electrodynamic balance car lithium battery explosion protection system |
| CN110126630A (en) * | 2019-05-23 | 2019-08-16 | 北京华盛源通科技有限公司 | A kind of electrical brake system and operation method of pure electric vehicle rail locomotive |
| CN110126852A (en) * | 2019-05-23 | 2019-08-16 | 北京华盛源通科技有限公司 | A kind of electrical system of pure electric vehicle rail locomotive |
| CN111993952A (en) * | 2019-05-27 | 2020-11-27 | 广州雷利诺车业有限公司 | Electric motorcycle and control method thereof |
| CN110329110A (en) * | 2019-08-06 | 2019-10-15 | 江西博能上饶客车有限公司 | A kind of cell safety control system and control method for electric motor coach |
| CN110329110B (en) * | 2019-08-06 | 2020-12-04 | 江西博能上饶客车有限公司 | Battery safety control system and control method for electric motor coach |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| C56 | Change in the name or address of the patentee | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Xiao Inventor after: Li Huiqi Inventor after: OuYang Jian Inventor after: Zhou Yuanshan Inventor before: Li Huiqi Inventor before: OuYang Jian Inventor before: Zhou Yuanshan |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI HUIQI OU YANGJIAN ZHOU YUANSHAN TO: SUN XIAO LI HUIQI OU YANGJIAN ZHOU YUANSHAN |
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| CP02 | Change in the address of a patent holder |
Address after: 511422 Guangdong Province, Guangzhou City Southern towns Panyu District Xingye Road No. 28 building, 5 floor, Huaxin EV Electric Automobile Co. Ltd. Patentee after: GUANGZHOU YIWE ELECTRIC VEHICLE CO.,LTD. Address before: 511422 No. 38 Xingye Road, South Village, Guangzhou, Guangdong, Panyu District Patentee before: GUANGZHOU YIWE ELECTRIC VEHICLE CO.,LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20210821 |
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| CF01 | Termination of patent right due to non-payment of annual fee |