CN207466410U - A kind of electric vehicle electricity system - Google Patents
A kind of electric vehicle electricity system Download PDFInfo
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- CN207466410U CN207466410U CN201721486377.8U CN201721486377U CN207466410U CN 207466410 U CN207466410 U CN 207466410U CN 201721486377 U CN201721486377 U CN 201721486377U CN 207466410 U CN207466410 U CN 207466410U
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- oxide
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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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a kind of electric vehicle electricity systems,Including battery management system and vehicle control syetem,The battery management system includes battery,The electric discharge interface being connect with the positive and negative anodes of battery by the first positive wire and cathode conductor,The contactor and controller being arranged on the first positive wire,The anode of the first positive wire connection battery,Cathode conductor connects the cathode of battery,The vehicle control syetem is connect with the electrical connection of electric discharge interface and with controller signals,The battery management system, which further includes, is arranged on the first metal-oxide-semiconductor and the second metal-oxide-semiconductor in parallel with contactor on the second positive wire,The source electrode of first metal-oxide-semiconductor is connect with the source electrode of the second metal-oxide-semiconductor,The drain electrode of first metal-oxide-semiconductor is connected to the anode of battery by the second positive wire,The drain electrode of second metal-oxide-semiconductor is connected to electric discharge interface by the second positive wire,The controller controls the first metal-oxide-semiconductor,The disconnection of second metal-oxide-semiconductor and contactor and closure.The electric vehicle electricity system can be directed to the different electricity consumption situation of vehicle with different loop power supplies, can effectively reduce energy consumption.
Description
Technical field
The utility model is related to new energy field more particularly to a kind of electronic vehicle electric systems for low-speed electronic automobile
System.
Background technology
In electric vehicle, on the one hand need to power for motor, on the one hand need system power supply in order to control, due to motor only
It only needs to be powered it during automobile is advanced, and control system stops during automobile is advanced and in automobile
It is also required to be powered during traveling, in order to save energy consumption, people are respectively adopted two independent current sources and are in order to control respectively
System and motor power supply, the very big trouble that two independent current sources are brought to the management of power supply, and need onboard for two
Independent current source sets corresponding structure, needs to occupy certain space, while increase the cost of vehicle.For this purpose, some manufacturers
Motor and control system are directly accessed into same circuit, when not being powered to motor, are still required for connecting circuit to control
System power supply necessarily increases standby energy consumption.The way also having at present is to make the controlling party of negative control of metal-oxide-semiconductor to loop of power circuit
Method, although this reduces power consumption, the equipment such as battery management system and vehicle altogether, are not needed plus are isolated, be necessarily required to increase
Addition sheet.
Utility model content
The main purpose of the utility model is that a kind of electric vehicle electricity system is provided, using same power supply and using MOS
It manages the mode just controlled to be powered for vehicle and control system, electricity can be controlled by controlling the switch of metal-oxide-semiconductor and contactor
The output in pond, reduces energy consumption.
To achieve the above objectives, the technical solution adopted in the utility model is：A kind of electric vehicle electricity system, including battery
Management system and vehicle control syetem, the battery management system include battery, are led with the positive and negative anodes of battery by the first anode
The line electric discharge interface connected with cathode conductor, the contactor and controller that are arranged on the first positive wire, described first just
Polar conductor connects the anode of battery, and cathode conductor connects the cathode of battery, and the vehicle control syetem is electrically connected with electric discharge interface
And connect with controller signals, which is characterized in that the battery management system further include be arranged on the second positive wire with
The first metal-oxide-semiconductor and the second metal-oxide-semiconductor of contactor parallel connection, the source electrode of first metal-oxide-semiconductor are connect with the source electrode of the second metal-oxide-semiconductor, the
The drain electrode of one metal-oxide-semiconductor is connected to the anode of battery by the second positive wire, and the drain electrode of the second metal-oxide-semiconductor passes through the second positive wire
Electric discharge interface is connected to, the controller controls disconnection and the closure of the first metal-oxide-semiconductor, the second metal-oxide-semiconductor and contactor.
Preferably, the battery is electrically connected with the controller by DC/DC modules.
Preferably, the battery management system further include the charging interface that is connect with the first positive wire and cathode conductor and
The charger being connected on charging interface, the charger are connect with controller signals.
Preferably, after charger accesses power supply, controller control contactor is closed, the first metal-oxide-semiconductor disconnects.
Preferably, the vehicle control syetem includes the MCU being connect with controller signals, when a vehicle is started, controller
It can be closed according to the vehicle launch signal control contactor that MCU is sent, the second metal-oxide-semiconductor disconnects.
Preferably, current limit circuit is set on the second positive wire.
Compared with prior art, the utility model has the advantages that：
The battery management system of the electric vehicle electricity system controls the mode that battery exports in a manner that metal-oxide-semiconductor is just controlled,
So that the circuit for having more electrical equipment using one when vehicle needs larger output, needs to use during smaller output another
A circuit with less electrical equipment, reduces energy consumption.
Description of the drawings
Fig. 1 is the schematic diagram of the electric vehicle electricity system of a preferred embodiment according to the present utility model
Fig. 2 is the connection figure of the metal-oxide-semiconductor of a preferred embodiment according to the present utility model
Specific embodiment
It is described below to disclose the utility model so that those skilled in the art can realize the utility model.It retouches below
Preferred embodiment in stating is only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
A kind of electric vehicle electricity system as illustrated in fig. 1 and 2, including battery management system and with battery management system signal
Connection and the vehicle control syetem of electrical connection, the battery management system and vehicle control syetem can be communicated in real time and
Battery management system can control the output of electricity according to the state of vehicle control syetem.
The battery management system includes battery 1 and the positive and negative anodes of battery pass through the first positive wire 11 and cathode conductor
The electric discharge interface 21 and charging interface 22 of 12 connections, are arranged on the second anode at the contactor 3 being arranged on the first positive wire 11
First metal-oxide-semiconductor 41 in parallel with contactor 3 and the second metal-oxide-semiconductor 42 and the first metal-oxide-semiconductor 41 of control and the second metal-oxide-semiconductor on conducting wire 13
42 disconnect (OFF) and are closed the controller 5 of (ON), and 41 and second metal-oxide-semiconductor 42 of the first metal-oxide-semiconductor is arranged in series, and first
The source S of metal-oxide-semiconductor 41 is extremely connected with the source S of the second metal-oxide-semiconductor 42, the drain D of first metal-oxide-semiconductor 41 and the anode phase of battery 1
Even, the drain D of the second metal-oxide-semiconductor 41 is connected with electric discharge interface 21.
The electric discharge interface 21 connect with vehicle control syetem and then can realize that battery 1 is supplied for vehicle control syetem simultaneously
Electricity.The vehicle control syetem includes MCU, instrument with host computer etc., specifically, the prior art may be used.The controller 5
Which can be selected through circuit pair by control contactor 3, the disconnection of the first metal-oxide-semiconductor 41 and the second metal-oxide-semiconductor 42 and closure
Vehicle control syetem is powered.
Specifically, the controller 5 is connect by the first driver 51 with the grid G of the first metal-oxide-semiconductor 41, is driven by second
Dynamic device 52 is connect with the grid G of the second metal-oxide-semiconductor 42, and the controller 5 can by the first driver 51 and the second driver 52
Disconnection and the closure of the first metal-oxide-semiconductor 41 and the second metal-oxide-semiconductor 42 are controlled respectively.Specifically, the driver to the control of metal-oxide-semiconductor all
Belong to the prior art, no further details here.
Overcurrent punctures metal-oxide-semiconductor in order to prevent, current limit circuit 9 is set on the second positive wire 13, when controller 5
Detect that electric current is more than control current-limiting circuit cutoff circuit after setting value in circuit, ensures the safety of metal-oxide-semiconductor, when controller leads to
Overvoltage detects that the load in circuit is removed using circuit, and after delay after a period of time, controller control current limliting is electric
Road 9 re-closes, and continues to power.The current-limiting circuit 9 and voltage use the prior art using circuit, and operation principle is no longer detailed
It states.
It is closed contactor 3, while controller 5 makes first when vehicle is started by initiation key or start button
41 and second metal-oxide-semiconductor 42 of metal-oxide-semiconductor is closed, and battery 1 is all of vehicle by the first positive wire 11 and cathode conductor 12 at this time
Power supply for electrical equipment.After vehicle closes vehicle power supply by initiation key or start button, contactor 3 disconnects, controller 5
The first metal-oxide-semiconductor 41 and the second metal-oxide-semiconductor 42 is controlled to open, battery 1 is vehicle by the second positive wire 13 and cathode conductor 12 at this time
Borne control system is powered, and vehicle is closed at this time, and only sub-fraction equipment needs electricity consumption, due to passing through the first MOS
The electric current of 41 and second metal-oxide-semiconductor 42 of pipe efficiently reduces vehicle in dwelling period in this way relative to very little during vehicle normal use
Between battery capacity loss.
When battery discharge to it is under-voltage when, controller 5 control the first metal-oxide-semiconductor 41 disconnect, the second metal-oxide-semiconductor 42 is closed, and battery 5 is not
It is powered, waits to be charged again；When battery charges to full electricity, controller 5 controls the first metal-oxide-semiconductor 41 to disconnect, the second metal-oxide-semiconductor 42
It is closed, waits to be discharged.
When battery can normal use when, by key, start button when starting switches start vehicle when, need at this time compared with
More electricity, MCU detects that starting switch is closed, transmits a signal to the controller 5 of battery management system, and controller 5 makes second
Metal-oxide-semiconductor 42 disconnects, and is closed contactor 3, and battery 1 is vehicle control syetem and other by the circuit where contactor 3 at this time
Power supply for electrical equipment.
The battery management system further includes the charger 6 being connect with charging interface 22, and the charger 6 passes through cell tube
Communication interface 23 in reason system is connect with 5 signal of controller, when controller 5 detects that charger 6 accesses alternating current or other
During power supply, 5 control contactor 3 of controller is closed that (under normal circumstances, the vehicle in front of charging is in dead ship condition, and contactor 3 is in
Off-state), the first metal-oxide-semiconductor 41 disconnects, and the circuit that charger 6 is made up of the first positive wire 11 and cathode conductor 12 is to electricity
It charges in pond 1.
It when charging to battery 5, is charged the battery using charger 6, charger 6 is connected to the second anode and leads
On line 13 and cathode conductor 12, when controller 5 detects that charger 6 accesses alternating current or other power supplys, control contactor 3 closes
It closes to charge to battery 1.
The vehicle control syetem further includes instrument and host computer, and the instrument and host computer pass through communication interface 23 and control
5 signal of device processed connection is to show that the state of battery or the instrument and host computer are communicated by MCU and controller 5.Institute
The communication stated between controller 5 and communication interface 23, communication interface 23 and charger 6, MCU, instrument, host computer uses CAN
Bus.
In order to ensure Electrical Safety, set at position on the first positive wire 11 and not in parallel with the second positive wire 13
It is equipped with fuse 10.
The battery 1 is electrically connected by DC/DC modules 14 with controller 5, and the voltage of battery 1 is adjusted to by DC/DC modules 8
12V。
In order to be detected to some parameters, the battery management system further include connect with controller signals examining
Survey the battery voltage sampling module of cell voltage, the current sampling module of electric current on measure loop, the temperature for detecting battery temperature
Sampling module, the battery voltage sampling module, electric current use the prior art using module and temperature sampling module.And electricity
Using module preferably using current divider 7, the current divider 7 is arranged on cathode conductor 12 stream.The battery management system is also
Including the contactor drive module that is connect with 5 signal of controller driving the opening and closing of contactor 3.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only the utility model principle, on the premise of not departing from the spirit and scope of the utility model the utility model also have respectively
Kind changes and improvements, these changes and improvements are both fallen in claimed the scope of the utility model.The requires of the utility model
Protection domain defined by appended claims and its equivalent.
Claims (6)
1. a kind of electric vehicle electricity system, including battery management system and vehicle control syetem, the battery management system includes
Battery, the electric discharge interface being connect by the first positive wire and cathode conductor with the positive and negative anodes of battery are arranged on the first anode and lead
Contactor and controller on line, the anode of the first positive wire connection battery, cathode conductor connect the cathode of battery,
The vehicle control syetem is connect with the electrical connection of electric discharge interface and with controller signals, which is characterized in that the battery management
System, which further includes, is arranged on the first metal-oxide-semiconductor and the second metal-oxide-semiconductor in parallel with contactor on the second positive wire, the first MOS
The source electrode of pipe is connect with the source electrode of the second metal-oxide-semiconductor, and the drain electrode of the first metal-oxide-semiconductor is being connected to battery just by the second positive wire
Pole, the drain electrode of the second metal-oxide-semiconductor are connected to electric discharge interface by the second positive wire, and the controller controls the first metal-oxide-semiconductor, second
The disconnection of metal-oxide-semiconductor and contactor and closure.
2. a kind of electric vehicle electricity system according to claim 1, which is characterized in that the battery passes through DC/DC modules
It is electrically connected with the controller.
3. a kind of electric vehicle electricity system according to claim 1, which is characterized in that the battery management system further includes
The charging interface being connect with the first positive wire and cathode conductor and the charger being connected on charging interface, the charger with
Controller signals connect.
4. a kind of electric vehicle electricity system according to claim 3, which is characterized in that after charger accesses power supply, control
Device control contactor processed is closed, the first metal-oxide-semiconductor disconnects.
5. a kind of electric vehicle electricity system according to claim 1, which is characterized in that the vehicle control syetem include with
The MCU of controller signals connection, when a vehicle is started, controller can control contact according to the vehicle launch signal that MCU is sent
Device is closed, the second metal-oxide-semiconductor disconnects.
6. a kind of electric vehicle electricity system according to claim 1, which is characterized in that be provided on the second positive wire
Current-limiting circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721486377.8U CN207466410U (en) | 2017-11-09 | 2017-11-09 | A kind of electric vehicle electricity system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721486377.8U CN207466410U (en) | 2017-11-09 | 2017-11-09 | A kind of electric vehicle electricity system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207466410U true CN207466410U (en) | 2018-06-08 |
Family
ID=62263177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721486377.8U Active CN207466410U (en) | 2017-11-09 | 2017-11-09 | A kind of electric vehicle electricity system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207466410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116533830A (en) * | 2023-07-06 | 2023-08-04 | 中国第一汽车股份有限公司 | Whole vehicle energy-saving control method and device and vehicle |
-
2017
- 2017-11-09 CN CN201721486377.8U patent/CN207466410U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116533830A (en) * | 2023-07-06 | 2023-08-04 | 中国第一汽车股份有限公司 | Whole vehicle energy-saving control method and device and vehicle |
| CN116533830B (en) * | 2023-07-06 | 2023-09-01 | 中国第一汽车股份有限公司 | Whole vehicle energy-saving control method and device and vehicle |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181214 Address after: 20111 4015, 32 Juju Road, Chedun Town, Songjiang District, Shanghai Patentee after: Shanghai Nanku New Energy Technology Co., Ltd. Address before: 201611 2 No. 50 Cheyang Road, Chedun Town, Songjiang District, Shanghai Patentee before: Shanghai Deschamps moves Amperex Technology Limited |