CN107031409A - A kind of high voltage distribution box of the electric automobile controlled based on CAN - Google Patents
A kind of high voltage distribution box of the electric automobile controlled based on CAN Download PDFInfo
- Publication number
- CN107031409A CN107031409A CN201710098836.3A CN201710098836A CN107031409A CN 107031409 A CN107031409 A CN 107031409A CN 201710098836 A CN201710098836 A CN 201710098836A CN 107031409 A CN107031409 A CN 107031409A
- Authority
- CN
- China
- Prior art keywords
- voltage
- high voltage
- distribution box
- circuit
- controlled based
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The present invention is provided in a kind of high voltage distribution box of the electric automobile controlled based on CAN, high voltage distribution box and is provided with high-tension panel, high voltage connector, insurance and some sensors；High-tension panel is connected by CAN with entire car controller, for realizing the control of contactor and the interaction of data.To reduce the change to original high-voltaghe compartment, the present invention increases high-tension panel on the basis of conventional high-tension block terminal, the break-make demand of high voltage connector is sent to high-tension panel by entire car controller in the way of CAN message, the break-make of high-tension panel response message control contactor, and the feedback of contactor and the collection signal of sensor are sent into entire car controller in the way of CAN in real time.
Description
Technical field
The invention belongs to pure electric automobile technical field, the high voltage control and monitoring system of pure electric automobile are related generally to.
Background technology
High voltage distribution box, as the key components of pure electric automobile high-pressure system, is that vehicle high pressure supplies distribution management
Core.More than high voltage distribution box on current pure electric automobile by the way of rigid line control, i.e., the control of high voltage connector is drawn
Pin is drawn out to outside high voltage distribution box by low voltage wiring harness and low-pressure port and accesses low-voltage distribution box, and entire car controller passes through control
The level output of low-voltage distribution box, so as to reach the purpose of control high voltage connector break-make.Meanwhile, the feedback of high voltage connector is drawn
Pin, the output signal of sensor are that full-vehicle control is drawn out to outside high voltage distribution box and accessed by low voltage wiring harness and low-pressure port
Device, is directly gathered by entire car controller.Vehicle control unit controls port and collection port requirements are compared using such a block terminal
Height, increases the task amount of entire car controller.The use of simultaneously excessive wire harness and connector can add the trouble point of vehicle,
Reduce the reliability and security of vehicle.
The content of the invention
It is an object of the invention to provide a kind of intelligent high-pressure control box based on CAN, entire car controller and high pressure
Only need 1 pair of CAN line to complete high voltage control and monitoring between block terminal, reduce the use of low voltage wiring harness, reduce entire car controller
Task amount, can reduce integral vehicle cost while improve Full Vehicle System reliability and security.
It is to solve the technical scheme that is used of above-mentioned technical problem：
A kind of high voltage distribution box of the electric automobile controlled based on CAN, it is characterised in that in the high voltage distribution box
Provided with high-tension panel, high voltage connector, insurance and some state sensors；The high-tension panel passes through CAN all the way
Connected with entire car controller, for realizing control and entire car controller and high voltage power distribution of the entire car controller to high voltage connector
Data interaction between plate；
The high-tension panel includes：Main control module MCU, power supply conditioning module, digital quantity output circuit, digital quantity input
Circuit, communication interface circuit, analog input interface circuit, voltage x current Acquisition Circuit；The state sensor accesses voltage
Status signal is sent into by main control module MCU by analog input interface circuit after current collection circuit；The digital output
Circuit is connected with high voltage connector or radiator fan, for control signal output；High voltage connector feedback signal passes through the number
Word amount input circuit feeding main control module MCU；External 9~36V the working powers of power supply conditioning module, it is conditioned after it is right respectively
Main control module MCU and state sensor are powered.
The state sensor includes block terminal state sensor and whole vehicle state sensor, for gathering block terminal and whole
Car status signal, wherein whole vehicle state sensor are Hall voltage current sensor.
The communication interface circuit includes CAN communication interface circuit and RS232 serial interface circuits, CAN communication interface electricity
Road is used to realize high-tension panel and the connection of outside CAN, and RS232 serial interface circuits are used for programming program or for being
The real-time monitoring of system.
The main control module MCU of high-tension panel model MC9S12XEP100.
The CAN communication interface circuit includes CAN and drives transceiver U10, photo-coupler U9, U11 and common mode inductance L5；Institute
State the CAN communication pin PM5 that CAN driving transceivers U10 data sending terminal TXD passes through photo-coupler U9 and main control module MCU
Connection；The CAN communication pin that CAN driving transceivers U10 data receiver RXD passes through photo-coupler U11 and main control module MCU
PM4 connections；The CANH pins and CANL pins of the CAN driving transceivers U10 is connected by common mode inductance L5 with outside CAN
Connect, the two ends that the common mode inductance L5 is connected with outside CAN are connected by resistance R15, R13 and electric capacity C34 one end respectively
Connect, then the electric capacity C34 other end accesses the slope resistance input RS that CAN drives transceiver U10 by resistance R14.
The two pins access that the common mode inductance L5 is connected with outside CAN suppresses two poles by two TVS transient voltages
The diode clamp protection circuit D6 that pipe is constituted is with being followed by CAN.
Power isolation circuit, the isolated from power electricity are additionally provided between the CAN communication interface circuit and outside CAN
Routing power isolating chip U3 is constituted, and isolated from power chip U3 control source VS and input ground 0VIN connect system work respectively
Electric capacity C18 is connected between the VCC and GND of power supply, isolated from power chip U3 control source VS and input ground 0VIN；Power supply every
Off-chip piece U3 voltage output VO and output ground 0VOUT is respectively as the power supply VCC_CAN and GND_CAN of CAN, electricity
Electric capacity C22 is connected between source isolating chip U3 voltage output VO and output ground 0VOUT.
The digital quantity output circuit is the multichannel being made up of Darlington U12 and some low pressure control relay circuits
Output interface, the controlling switch of multiple input pins of the Darlington U12 respectively with main control module MCU is connected, and is used for
The signal input of low pressure control relay circuit；The low pressure control relay circuit includes a low-voltage relay RL, composite crystal
The output pin of body pipe connects low-voltage relay RL coil, another termination low-voltage relay driving electricity of the coil of low-voltage relay
VBAT is pressed, the output end of low-voltage relay and the coil of high-voltage relay are connected.
The digital input circuit includes multiple structure identical interface circuits and corresponds to different signal inputs respectively, its
In interface circuit include resistance R39, R41, R44, voltage-regulator diode D22 and electric capacity C44 are constituted, resistance R39, R41, R44
One end connect altogether, common port is used as signal input part, resistance R39 another termination low-voltage relay driving voltage VBAT, resistance
R44 other end ground connection, voltage-regulator diode D22 is in parallel with electric capacity C44, and voltage-regulator diode D22 negative electrode connects another with resistance R41
One end is connected, voltage-regulator diode D22 plus earth, resistance R41 and voltage-regulator diode D22 public termination main control module MCU
Signal acquisition pin.
The voltage x current Acquisition Circuit includes 6 tunnel 0~5V voltage collection circuits, 1 tunnel 0~15V voltage collection circuits, 1
Road 0~24V voltage collection circuits, 2 tunnel 0~50mA current collection circuits, 1 road ﹣ 50~50mA current collection circuits.
The high voltage distribution box of the present invention is removed under special circumstances (such as：It is on fire, intake, uncap, insulation fault) will not actively
The break-make of high voltage connector is controlled, and is in response to the CAN control instructions of entire car controller, electric current, the voltage sensor collected
Signal will not be used as logic control, but send entire car controller to.All logical operations are completed by entire car controller, from
And the high voltage distribution box is well adapted to different automobile types.
Brief description of the drawings
Fig. 1 is the high voltage distribution box structural principle block diagram that the present invention is provided；
Fig. 2 is CAN communication circuit diagram of the present invention；
Fig. 3 is power isolation circuit figure of the present invention；
Fig. 4 is digital quantity output circuit Darlington of the present invention and output interface circuit figure all the way；
Fig. 5 is the wherein input interface circuit figure all the way of digital input circuit of the present invention；
Fig. 6 is the present invention 0~5V voltage collection circuit figures；
Fig. 7 is the present invention 0~15V voltage collection circuit figures；
Fig. 8 is the present invention 0~24V voltage collection circuit figures；
Fig. 9 is the present invention 0~50mA current collection circuit figures；
Figure 10 is the present invention -50~50mA current collection circuit figures.
Embodiment
The embodiment to the present invention is described further below in conjunction with the accompanying drawings.Herein it should be noted that for
The explanation of these embodiments is used to help understand the present invention, but does not constitute limitation of the invention.
As shown in figure 1, a kind of high voltage distribution box of the electric automobile controlled based on CAN, it is characterised in that the height
Press and high-tension panel is provided with block terminal, high voltage connector insures and some state sensors；The high-tension panel passes through one
Road CAN is connected with entire car controller, for realizing control and entire car controller of the entire car controller to high voltage connector
Data interaction between high-tension panel；
The high-tension panel includes：Model MC9S12XEP100 main control module MCU, power supply conditioning module, numeral
Output circuit is measured, digital input circuit, communication interface circuit, analog input interface circuit, voltage x current Acquisition Circuit is led to
Believe that interface includes CAN communication interface circuit all the way and is used for the RS232 strings of programming program or the real-time monitoring for system all the way
Line interface circuit；The CAN communication interface circuit is connected with main control module MCU CAN communication pin；The state sensor bag
Block terminal state sensor and whole vehicle state sensor are included, for gathering block terminal and whole vehicle state signal, wherein whole vehicle state
Sensor is Hall voltage current sensor, and state sensor passes through analog input interface after accessing voltage x current Acquisition Circuit
By status signal feeding main control module MCU；The digital quantity output circuit is connected with high voltage connector or radiator fan, for controlling
Signal output processed；High voltage connector feedback signal sends into main control module by the digital input circuit；The power supply conditioning
External 9~36V the working powers of module, it is conditioned after main control module and block terminal state sensor are powered respectively.
CAN communication interface circuit includes CAN and drives transceiver U10, photo-coupler U9, U11 and common mode inductance L5, such as Fig. 2
Shown, CAN drivings transceiver U10 uses PCA82C251 chips, its CANH pin and CANL pins respectively with a common mode inductance L5
The connection of Same Name of Ends two pins, the two pins of the corresponding common mode inductance L5 of the Same Name of Ends two pins other end are respectively connected to outside
The CANH and CANL of CAN；The two pins that common mode inductance L5 is connected with outside CAN are accessed by two TVS transient voltages
Suppress the diode clamp protection circuit D6 of diode composition with being followed by CAN；
The data sending terminal TXD and photo-coupler U9 of the CAN driving transceivers U10 open-collector output VO connect
Connect；The data receiver RXD and photo-coupler U11 of the CAN driving transceivers U10 light-emitting diodes tube cathode pass through resistance
R18 connections；The GND pin of the CAN driving transceivers U10 after photo-coupler U9 GND pin short circuit with CAN with powering
The GND_CAN ends connection of power supply, the light emitting diode sun of the VCC pin and photo-coupler U11 of the CAN driving transceivers U10
Extremely short connect is connected with the VCC_CAN ends of CAN power supply afterwards；
VCC_CAN after the VCC pin and enable input VE short circuits of the photo-coupler U9 with CAN power supply
End connection, photo-coupler U9 open-collector output VO accesses VCC_CAN ends by resistance R12；Photo-coupler U9 hair
Optical diode anode meets MCU operating voltage VCC, and light-emitting diodes tube cathode connects main control module MCU CAN communication by resistance R16
Pin PM5；
The open-collector output VO of the photo-coupler U11 meets main control module MCU CAN communication pin PM4, and logical
Cross resistance R17 to be connected with main control module MCU power supply VCC ends, photo-coupler U9 VCC pin and enable input VE short circuits
It is followed by main control module MCU power supply VCC ends.
Fig. 3 is the power isolation circuit of CAN communication, and U3 is isolated from power chip DCR010505U, and MCU 5V is worked into electric
Source VCC, GND be converted between 5V power supplies VCC_CAN, GND_CAN of CAN, two power supplys for isolation voltage 1000V.
Fig. 4 for digital quantity output circuit Darlington and wherein output interface circuit figure all the way.Output interface circuit
Load can both connect high-voltage relay, can also connect control circuit of cooling fan.RL1 is low-voltage relay in figure, using compound
Transistor U12 drives low-voltage relay, and U12 input pin IN1~IN7 meets MCU, output pin OUT1~OUT7 connect low pressure after
The coil of electrical equipment, another termination low-voltage relay driving voltage VBAT of coil of low-voltage relay.RL1_IN is high voltage connector
Driving voltage is inputted, and RL1_OUT exports for high-voltage relay driving voltage.
When needing control high voltage connector closure, the OUT1 pins of high level, then U12 are exported by MCU controlling switch PB5
Ctrl_RL1 is output as low level, and VBAT conductings, RL1 adhesives, high voltage connector power supply passes through RL1_IN, RL1_OUT, contactor
Coil, so as to drive contactor to close.
When needing control high voltage connector to disconnect, the OUT1 pins of low level, then U12 are exported by MCU controlling switch PB5
Ctrl_RL1 exports high-impedance state, and VBAT cut-offs, RL1 disconnects, and RL1_IN is separated with RL1_OUT, and high voltage connector power supply is not
Contactor coil can be flowed into, high voltage connector disconnects.
Due to not being joined directly together between U12, MCU of RL1_IN, RL1_OUT and drive circuit, high-voltage relay disconnects
The impact to U12, MCU is not resulted in closure moment.
Fig. 5 is the wherein input interface circuit figure all the way of digital input circuit, and the digital quantity input of high-tension panel connects
Mouth circuit can monitor the feedback signal of contactor in real time, and conventional digital quantity detection circuit can only distinguish high level state and low electricity
Level state, can not then judge vacant state, and the present invention gathers the level of input signal by AD, so as to distinguish high electricity
Flat, hanging, three kinds of input states of low level.I_S_HL1 inputs for contactor feedback signal in figure, and AD18 gathers for MCU AD
Pin, VBAT is the power supply of system, and R39 is 100K Ω resistance, and R44 is 10K Ω resistance, and D22 is 5V voltage-stabiliser tubes.Work as I_S_
When HL1 is high level, MCU collections AD18 voltage is 5V；When I_S_HL1 is low level, MCU collections AD18 voltage is
0V；When I_S_HL1 is vacant state, MCU gathers AD18 voltage Vad18=VBAT*10/110.
Fig. 6 is 0~5V voltage collection circuits：I_A_V1 is 0~5V analog input signals in figure, and AD9 adopts for MCU AD
Collect pin, D21 is 5V voltage-stabiliser tubes, when I_A_V1 input voltage vins 1 are more than 5V, voltage-stabiliser tube can be by voltage stabilization to 5V, to protect
Card MCU pins are not damaged by.When I_A_V1 input voltage vins 1 are in the range of 0~5V, AD9 collection voltages Vad9=Vin1.
Fig. 7 is 0~15V voltage collection circuits：I_A_V5 is 0~15V analog input signals in figure, and AD4 is MCU AD
Pin is gathered, D27 is 5V voltage-stabiliser tubes, and R58 is the 10K Ω resistance of precision 0.1%, and R60 is the 4.02K Ω resistance of essence 0.1%.I_
A_V5 input voltage vins 2 pass through R58, R60 partial pressure, AD4 collection partial pressure Vad4=Vin2*4.02/ (4.02+10).
Fig. 8 is 0~24V voltage collection circuits：I_A_V6 is 0~24V analog input signals in figure, and AD6 is MCU AD
Pin is gathered, D23 is 5V voltage-stabiliser tubes, and R47 is the 30K Ω resistance of precision 0.1%, and R48 is the 4.02K Ω resistance of essence 0.1%.I_
A_V6 input voltage vins 3 are after R47,48 partial pressures, AD6 collection partial pressure Vad6=Vin3*4.02/ (4.02+30).
Fig. 9 is 0~50mA current collection circuits：I_A_MA is 0~50mA analog input signals in figure, and AD7 is MCU's
AD gathers pin, and D35 is 5V voltage-stabiliser tubes, and U14 is that 4 channel operation amplifier AD824, R78 are electric for the 1W50 Ω of precision 0.1%
Resistance.The electric current Iin1 of I_A_MA inputs is converted into voltage signal by R78, then by voltage follower U14B, is gathered by AD7
Voltage, AD7 collection voltages Vad7=Iin1*50.
Figure 10 is ﹣ 50~50mA current collection circuits：I_A_PCMA is -50~50mA analog input signals in figure,
AD14 is MCU AD collection pins, and D26 is 5V voltage-stabiliser tubes, and U14 is that 4 channel operation amplifier AD824, R42 are precision 0.1%
1W50 Ω resistance, R49, R50 be precision 0.1% 10K Ω resistance.The electric current Iin2 of I_A_PCMA inputs is changed by R42
It is then V1 by voltage follower U14D output voltages into voltage signal, R49, R50 are bleeder circuit, V2=(VCC-V1)/
2, V2 pass through voltage follower U14C, by AD14 collection voltages, AD14 collection voltages Vad14=V2=(VCC-Iin2*50)/2.
There is polytype sensor in high voltage distribution box, can be divided into according to the output signal type of sensor digital
Sensor and analog sensor.Digital transducer such as Smoke Sensor, water sensor, the output signal of its sensor connect
Enter the digital-quantity input interface to panel, when panel detects smog or water sensor is effective, height can be automatically cut off
Tentaculum is crimped, to ensure passenger and vehicle safety, while failure is sent into entire car controller by CAN.Analog sensor
It is the different types of simulation letter of compatible sensors output such as temperature sensor, Hall voltage sensor, Hall current sensor
Number, high-tension panel is reserved with the voltage sample port of the different amplitudes of 0~5V, 0~15V, tri- kinds of 0~24V, 0~50mA ,-
The current sample port of both 50mA~50mA difference amplitudes.In use, need to be corresponding according to the output signal selection of sensor
Gather port.Panel provides multichannel 5V outputs simultaneously, can be used as the working power of sensor.Temperature sensor is used to supervise in real time
The temperature in high-voltage cage is controlled, panel controls the working condition of radiator fan according to the temperature inside the box.
The high voltage distribution box of the present invention is removed under special circumstances (such as：It is on fire, intake, uncap, insulation fault) will not actively
The break-make of high voltage connector is controlled, and is in response to the CAN control instructions of entire car controller, electric current, the voltage sensor collected
Signal will not be used as logic control, but send entire car controller to.All logical operations are completed by entire car controller, from
And the high voltage distribution box is well adapted to different automobile types.
The part not illustrated in specification is prior art or common knowledge.The present embodiment is merely to illustrate the invention,
Rather than limitation the scope of the present invention, those skilled in the art change for equivalent replacement of the invention made etc. to be considered
Fall into invention claims institute protection domain.
Claims (10)
1. a kind of high voltage distribution box of the electric automobile controlled based on CAN, it is characterised in that set in the high voltage distribution box
There are high-tension panel, high voltage connector, insurance and some state sensors；The high-tension panel by CAN all the way with
Entire car controller is connected, for realizing control and entire car controller and high-tension panel of the entire car controller to high voltage connector
Between data interaction；
The high-tension panel includes：Main control module MCU, power supply conditioning module, digital quantity output circuit, digital quantity input electricity
Road, communication interface circuit, analog input interface circuit, voltage x current Acquisition Circuit；The state sensor access voltage electricity
Status signal is sent into by main control module MCU by analog input interface circuit after stream Acquisition Circuit；The digital output electricity
Road is connected with high voltage connector or radiator fan, for control signal output；High voltage connector feedback signal passes through the numeral
Measure input circuit feeding main control module MCU；External 9~36V the working powers of power supply conditioning module, it is conditioned after respectively to master
Control module MCU and state sensor are powered.
2. a kind of high voltage distribution box of electric automobile controlled based on CAN according to claim 1, its feature is existed
In the state sensor includes block terminal state sensor and whole vehicle state sensor, for gathering block terminal and vehicle shape
State signal, wherein whole vehicle state sensor are Hall voltage current sensor.
3. a kind of high voltage distribution box of electric automobile controlled based on CAN according to claim 2, its feature is existed
In the communication interface circuit includes CAN communication interface circuit and all the way RS232 serial interface circuits all the way, CAN communication interface
Circuit is used to realize high-tension panel and the connection of outside CAN, and RS232 serial interface circuits are used for programming program or are used for
The real-time monitoring of system.
4. a kind of high voltage distribution box of electric automobile controlled based on CAN according to claim 3, its feature is existed
In the main control module MCU of high-tension panel model MC9S12XEP100.
5. a kind of high voltage distribution box of electric automobile controlled based on CAN according to claim 4, its feature is existed
In the CAN communication interface circuit includes CAN and drives transceiver U10, photo-coupler U9, U11 and common mode inductance L5；The CAN
Driving transceiver U10 data sending terminal TXD is connected by photo-coupler U9 with main control module MCU CAN communication pin PM5；
CAN driving transceivers U10 data receiver RXD is connected by photo-coupler U11 and main control module MCU CAN communication pin PM4
Connect；The CANH pins and CANL pins of the CAN driving transceivers U10 is connected by common mode inductance L5 with outside CAN, institute
Two ends that common mode inductance L5 be connected with outside CAN are stated respectively by resistance R15, R13 and electric capacity C34 one end connection, so
The electric capacity C34 other end accesses the slope resistance input RS that CAN drives transceiver U10 by resistance R14 afterwards.
6. a kind of high voltage distribution box of electric automobile controlled based on CAN according to claim 5, its feature is existed
In the two pins access that the common mode inductance L5 is connected with outside CAN is made up of two TVS transient voltage suppressor diodes
Diode clamp protection circuit D6 with being followed by CAN.
7. a kind of high voltage distribution box of electric automobile controlled based on CAN according to claim 6, its feature is existed
Be additionally provided with power isolation circuit between, the CAN communication interface circuit and outside CAN, the power isolation circuit by
Isolated from power chip U3 is constituted, and isolated from power chip U3 control source VS and input ground 0VIN connect system working power respectively
VCC and GND, be connected with electric capacity C18 between isolated from power chip U3 control source VS and input ground 0VIN；Isolated from power core
Piece U3 voltage output VO and output ground 0VOUT respectively as CAN power supply VCC_CAN and GND_CAN, power supply every
Electric capacity C22 is connected between off-chip piece U3 voltage output VO and output ground 0VOUT.
8. a kind of high voltage distribution box of electric automobile controlled based on CAN according to claim 7, its feature is existed
In the digital quantity output circuit is the multiple-channel output being made up of Darlington U12 and some low pressure control relay circuits
Interface, the controlling switch of multiple input pins of the Darlington U12 respectively with main control module MCU is connected, for low pressure
The signal input of control relay circuit；The low pressure control relay circuit includes a low-voltage relay RL, Darlington
Output pin connect low-voltage relay RL coil, another termination low-voltage relay driving voltage of the coil of low-voltage relay
VBAT, the output end of low-voltage relay and the coil of high-voltage relay are connected.
9. a kind of high voltage distribution box of electric automobile controlled based on CAN according to claim 8, its feature is existed
In the digital input circuit includes multiple structure identical interface circuits and corresponds to different signal inputs respectively, wherein one
Individual interface circuit includes resistance R39, R41, R44, and voltage-regulator diode D22 and electric capacity C44 are constituted, and the one of resistance R39, R41, R44
End connects altogether, and common port is as signal input part, resistance R39 another termination low-voltage relay driving voltage VBAT, resistance R44's
The other end is grounded, and voltage-regulator diode D22 is in parallel with electric capacity C44, and voltage-regulator diode D22 negative electrode connects the other end with resistance R41
Connection, voltage-regulator diode D22 plus earth, resistance R41 and voltage-regulator diode D22 public termination main control module MCU letter
Number collection pin.
10. a kind of high voltage distribution box of electric automobile controlled based on CAN according to claim 9, its feature is existed
In, the voltage x current Acquisition Circuit include 6 tunnel 0~5V voltage collection circuits, 1 tunnel 0~15V voltage collection circuits, 1 tunnel 0~
24V voltage collection circuits, 2 tunnel 0~50mA current collection circuits, 1 road ﹣ 50~50mA current collection circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098836.3A CN107031409A (en) | 2017-02-23 | 2017-02-23 | A kind of high voltage distribution box of the electric automobile controlled based on CAN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098836.3A CN107031409A (en) | 2017-02-23 | 2017-02-23 | A kind of high voltage distribution box of the electric automobile controlled based on CAN |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107031409A true CN107031409A (en) | 2017-08-11 |
Family
ID=59533563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710098836.3A Pending CN107031409A (en) | 2017-02-23 | 2017-02-23 | A kind of high voltage distribution box of the electric automobile controlled based on CAN |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107031409A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621565A (en) * | 2017-10-23 | 2018-01-23 | 宁德时代新能源科技股份有限公司 | High voltage detection circuit, detector, battery device and vehicle |
| CN107995078A (en) * | 2017-11-25 | 2018-05-04 | 贵阳永青仪电科技有限公司 | It is a kind of can USB debugging vehicle-mounted data wireless transmission circuit |
| CN109032030A (en) * | 2018-08-16 | 2018-12-18 | 株洲联诚集团控股股份有限公司 | A kind of overlength trackless bus high-voltaghe compartment and auxiliary converter cabinet monitor system and method |
| CN110539712A (en) * | 2019-09-09 | 2019-12-06 | 陕西致新电子科技有限公司 | Intelligent vehicle-mounted distribution box system and distribution protection method |
| CN113708753A (en) * | 2021-07-15 | 2021-11-26 | 深圳市有为信息技术发展有限公司 | Three-state input interface circuit for detecting switching value of commercial vehicle and vehicle-mounted terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848994A (en) * | 2012-10-10 | 2013-01-02 | 潍柴动力股份有限公司 | Device, system and method for controlling high-voltage distribution box |
| CN103078357A (en) * | 2012-03-09 | 2013-05-01 | 柴冬燕 | Intelligent vehicle-mounted high-voltage power distribution management unit for electric vehicle |
| JP2013187941A (en) * | 2012-03-06 | 2013-09-19 | Suzuki Motor Corp | Vehicular power supply device |
| CN203293925U (en) * | 2013-06-25 | 2013-11-20 | 安徽安凯汽车股份有限公司 | Bus-based electric passenger car high-voltage power distribution control system |
| KR20140020499A (en) * | 2012-08-08 | 2014-02-19 | 현대모비스 주식회사 | Method for protecting high voltage battery of hev |
-
2017
- 2017-02-23 CN CN201710098836.3A patent/CN107031409A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013187941A (en) * | 2012-03-06 | 2013-09-19 | Suzuki Motor Corp | Vehicular power supply device |
| CN103078357A (en) * | 2012-03-09 | 2013-05-01 | 柴冬燕 | Intelligent vehicle-mounted high-voltage power distribution management unit for electric vehicle |
| KR20140020499A (en) * | 2012-08-08 | 2014-02-19 | 현대모비스 주식회사 | Method for protecting high voltage battery of hev |
| CN102848994A (en) * | 2012-10-10 | 2013-01-02 | 潍柴动力股份有限公司 | Device, system and method for controlling high-voltage distribution box |
| CN203293925U (en) * | 2013-06-25 | 2013-11-20 | 安徽安凯汽车股份有限公司 | Bus-based electric passenger car high-voltage power distribution control system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621565A (en) * | 2017-10-23 | 2018-01-23 | 宁德时代新能源科技股份有限公司 | High voltage detection circuit, detector, battery device and vehicle |
| CN107621565B (en) * | 2017-10-23 | 2024-03-22 | 宁德时代新能源科技股份有限公司 | High voltage detection circuit, detector, battery device and vehicle |
| CN107995078A (en) * | 2017-11-25 | 2018-05-04 | 贵阳永青仪电科技有限公司 | It is a kind of can USB debugging vehicle-mounted data wireless transmission circuit |
| CN109032030A (en) * | 2018-08-16 | 2018-12-18 | 株洲联诚集团控股股份有限公司 | A kind of overlength trackless bus high-voltaghe compartment and auxiliary converter cabinet monitor system and method |
| CN109032030B (en) * | 2018-08-16 | 2024-04-09 | 株洲联诚集团控股股份有限公司 | Monitoring system and method for super-long trackless bus high-voltage box and auxiliary converter cabinet |
| CN110539712A (en) * | 2019-09-09 | 2019-12-06 | 陕西致新电子科技有限公司 | Intelligent vehicle-mounted distribution box system and distribution protection method |
| CN110539712B (en) * | 2019-09-09 | 2020-11-10 | 陕西致新电子科技有限公司 | Power distribution protection method of intelligent vehicle-mounted power distribution box system |
| CN113708753A (en) * | 2021-07-15 | 2021-11-26 | 深圳市有为信息技术发展有限公司 | Three-state input interface circuit for detecting switching value of commercial vehicle and vehicle-mounted terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107031409A (en) | A kind of high voltage distribution box of the electric automobile controlled based on CAN | |
| CN108008716B (en) | Portable electric automobile entire car controller detection device and its detection method | |
| CN104133149B (en) | A kind of voltage acquisition line Beam Detector | |
| CN201118218Y (en) | Controller for preventing alternating current contactor adhesion | |
| CN103279109B (en) | Locomotive digital quantity acquisition device based on MVB | |
| CN205301990U (en) | Electrical system experiment bench universal control module and experiment bench | |
| CN105178769A (en) | Bus type control device and monitoring system for electric door closer | |
| CN209756843U (en) | Driving device and battery management system | |
| CN106712279A (en) | Automatic bus connection protection device for dual communication power supply systems | |
| CN209496974U (en) | The fault setting circuit of the new-energy automobile power battery of real training | |
| CN104483917B (en) | A kind of multi-connected machine current ring communication system | |
| CN104251530B (en) | A kind of air-conditioning communication bus distribution protection device and method | |
| CN203287403U (en) | Signal wiring device | |
| CN212007821U (en) | Electrical connection device for single train debugging end of motor train unit | |
| CN105263248A (en) | Fault feedback protection circuit of LED daytime running lamp for vehicles | |
| CN108173298A (en) | A kind of balancing control circuit of power battery module | |
| CN205826811U (en) | A kind of aging testing system | |
| CN207115185U (en) | The test equipment of the housing temperature passage of rail vehicle motion control unit | |
| CN202502372U (en) | Four-way analog quantity input device based on bus control mode | |
| CN207251301U (en) | A kind of electric substation's stand-by power supply control cabinet | |
| CN103941127B (en) | Driving remote control test device | |
| CN102832078A (en) | Contactor control device, contactor control system and contactor control method | |
| CN203535396U (en) | Control and driving system of electric steering engine | |
| CN106291318A (en) | Locomotive control loop ground detection device and control method thereof | |
| CN205899300U (en) | Four ways switch quantity output device based on CIB BUS bus control mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170811 |