CN215042128U - Pure electric vehicle and power supply control circuit and system thereof - Google Patents

Pure electric vehicle and power supply control circuit and system thereof Download PDF

Info

Publication number
CN215042128U
CN215042128U CN202120999500.6U CN202120999500U CN215042128U CN 215042128 U CN215042128 U CN 215042128U CN 202120999500 U CN202120999500 U CN 202120999500U CN 215042128 U CN215042128 U CN 215042128U
Authority
CN
China
Prior art keywords
vehicle
relay
coil
charging socket
power supply
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.)
Active
Application number
CN202120999500.6U
Other languages
Chinese (zh)
Inventor
崔振亚
薛琦
宋向坤
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.)
Zhengzhou Yutong Mining Equipment Co ltd
Original Assignee
Zhengzhou Yutong Mining Equipment Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhengzhou Yutong Mining Equipment Co ltd filed Critical Zhengzhou Yutong Mining Equipment Co ltd
Priority to CN202120999500.6U priority Critical patent/CN215042128U/en
Application granted granted Critical
Publication of CN215042128U publication Critical patent/CN215042128U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • 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
    • Y02T90/14—Plug-in electric vehicles

Landscapes

  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The utility model provides a pure electric vehicles and power supply control circuit and system thereof belongs to pure electric vehicles technical field. The power supply control circuit comprises a BMS, a DC/DC converter and a relay, wherein a normally open contact of the relay is used for being connected with a vehicle ignition switch in parallel, whether a coil of the relay is electrified or not is controlled by a low-voltage power output port of the vehicle charging socket, when the low-voltage power output port of the vehicle charging socket is electrified, the coil of the relay is electrified, and when the low-voltage power output port of the vehicle charging socket is not electrified, the coil of the relay is not electrified. The existing pure electric vehicle power supply control system shown in the figure 1 is improved by eliminating the auxiliary DC/DC and adding a relay, the power supply control circuit can still enable the main DC/DC of the vehicle to be kept working as VCU, TBOX and BTM power supply under the condition that the vehicle is charged but an ignition switch is turned off, a 24V storage battery can be charged, the circuit is simple and low in cost, and the risk of power shortage of the storage battery when the vehicle is parked for a long time can be eliminated.

Description

Pure electric vehicle and power supply control circuit and system thereof
Technical Field
The utility model relates to a pure electric vehicles and power supply control circuit and system thereof belongs to pure electric vehicles technical field.
Background
For a pure electric vehicle, some electric appliance parts (such as a vehicle control unit, a new energy monitoring host, a battery thermal management system and a battery management system) are required to keep working states in the charging process so as to ensure monitoring and control of the charging process and determine continuous and stable charging process.
As shown in fig. 1, a pure electric vehicle power supply control system in the prior art is configured to convert a high voltage HV into a 24V low voltage by a secondary DC/DC converter (i.e., DC/DC2) to supply power to a vehicle control unit VCU, a new energy monitoring host TBOX and a battery thermal management system BTM when a vehicle is charged but an ignition switch is turned off (when a primary DC/DC (i.e., DC/DC1) does not work) by installing the secondary DC/DC converter (i.e., DC/DC2) inside a battery management system BMS, according to a specific operation principle:
when the vehicle is connected to the charging gun CHG for charging and the vehicle ignition switch SW is turned off (i.e. SW is turned off), the charging socket SOK outputs 12V low voltage to electrically activate the BMS, and the BMS starts to operate, at which time the sub DC/DC inside the BMS converts the high voltage HV into 24V low voltage to supply VCU, TBOX and BTM;
when the vehicle is charged by connecting the charging gun CHG and the vehicle ignition switch SW is turned on (i.e., SW is turned on), the BMS starts operating and actively cuts off the sub DC/DC power supply, and at the same time, the 24V battery BAT supplies power to the input enable pin IN of the main DC/DC, the main DC/DC starts operating, the main DC/DC converts the high voltage HV into a 24V low voltage and outputs the 24V low voltage to the VCU, TBOX and BTM through the output pin OUT thereof, and at the same time, charges the 24V battery BAT.
However, the pure electric vehicle power supply control system shown in fig. 1 has the following disadvantages and shortcomings: (1) in the case of charging the vehicle but turning off the ignition switch, in order to supply power to the VCU, TBOX and BTM, an additional secondary DC/DC is required for the vehicle, and the system complexity and cost are high; (2) in the case where the vehicle is charged but the ignition switch is turned off, the 24V battery BAT cannot be charged, and if the vehicle is parked for a long period of time, the 24V battery still runs the risk of a power shortage causing the vehicle to be unable to start.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pure electric vehicles and power supply control circuit and system thereof, but under the condition that ignition switch closed at the vehicle charging, still enable the main DC of vehicle to keep working to the 24V battery can be charged, and the circuit is simple, with low costs, can also eliminate the risk that the vehicle parked the battery insufficient voltage for a long time.
In order to achieve the purpose, the utility model provides a pure electric vehicles power supply control circuit, including BMS and DC/DC converter, the awakening signal input part of BMS is used for connecting the low voltage output port that the vehicle charges the socket, the high voltage input pin of DC/DC converter is used for connecting the high voltage output port that the vehicle charges the socket, and the voltage output pin of DC/DC converter is used for connecting the positive pole of 24V battery, and the input enable pin of DC/DC converter is used for being connected the positive pole of 24V battery after establishing ties with vehicle ignition switch, and the series connection point of input enable pin and vehicle ignition switch of DC/DC converter still connects the voltage input end of whole vehicle controller, new forms of energy monitoring host computer and battery thermal management system respectively; the power supply control circuit further comprises a relay, the relay comprises a coil part and a normally open contact part, the normally open contact of the relay is used for being connected with a vehicle ignition switch in parallel, whether the coil of the relay is electrified or not is controlled by the low-voltage output port of the vehicle charging socket, when the low-voltage output port of the vehicle charging socket is electrified, the coil of the relay is electrified, and when the low-voltage output port of the vehicle charging socket is not electrified, the coil of the relay is not electrified.
The beneficial effect of this pure electric vehicles power supply control circuit is: (1) the existing pure electric vehicle power supply control system shown in the figure 1 is improved by canceling the auxiliary DC/DC and adding the relay, when the vehicle is charged but the ignition switch is turned off, the low-voltage output port of the vehicle charging socket is electrified, then the coil of the relay is electrified, the normally open contact of the relay is closed, and a 24V storage battery supplies power to the input enabling pin of the DC/DC converter through the line where the normally open contact of the relay is located, so that the vehicle main DC/DC maintainer can still be used as VCU, TBOX and BTM power supply, the circuit is simplified, and the cost is saved; (2) under the condition that the vehicle is charged but the ignition switch is turned off, the DC/DC converter works to convert the high-voltage power output by the high-voltage power output port of the vehicle charging socket into 24V low-voltage power to charge the 24V storage battery, and the risk of power shortage of the storage battery when the vehicle is parked for a long time can be eliminated because the 24V storage battery can be charged.
Further, in the pure electric vehicle power supply control circuit, one end of a coil of the relay is grounded, and the other end of the coil is used for connecting a low-voltage output port of a vehicle charging socket.
Further, in the above-mentioned pure electric vehicles power supply control circuit, coil one end ground connection of relay, the other end is used for connecting the output of BMS, and BMS awakens up when the low-voltage electricity output port of vehicle charging socket is electrified, and BMS awakens up the back and outputs a control signal and makes the coil of relay get electric.
The utility model also provides a pure electric vehicle power supply control system, which comprises a BMS, a DC/DC converter, a vehicle charging socket, a 24V storage battery, a vehicle ignition switch, a whole vehicle controller, a new energy monitoring host and a battery thermal management system, the system comprises a BMS (battery management system), a vehicle charging socket, a DC/DC converter, a vehicle ignition switch, a vehicle controller, a new energy monitoring host and a battery thermal management system, wherein the input end of a wake-up signal of the BMS is connected with a low-voltage output port of the vehicle charging socket, a high-voltage input pin of the DC/DC converter is connected with a high-voltage output port of the vehicle charging socket, a voltage output pin of the DC/DC converter is connected with the anode of the 24V storage battery, an input enabling pin of the DC/DC converter is connected with the anode of the 24V storage battery after being connected with the vehicle ignition switch in series, and the series connection point of the input enabling pin of the DC/DC converter and the vehicle ignition switch is also respectively connected with the voltage input ends of the vehicle controller, the new energy monitoring host and the battery thermal management system; the power supply control system further comprises a relay, the relay comprises a coil part and a normally open contact part, the normally open contact of the relay is connected with the vehicle ignition switch in parallel, whether the coil of the relay is electrified or not is controlled by whether the low-voltage output port of the vehicle charging socket is electrified or not, when the low-voltage output port of the vehicle charging socket is electrified, the coil of the relay is electrified, and when the low-voltage output port of the vehicle charging socket is not electrified, the coil of the relay is not electrified.
The beneficial effect of this pure electric vehicles power supply control system is: (1) the conventional pure electric vehicle power supply control system shown in the figure 1 is improved by canceling the auxiliary DC/DC and adding the relay, so that the main DC/DC of the vehicle can still be used as VCU (voltage control unit), TBOX (tunnel boring machine) and BTM (base station) power supply under the condition that the vehicle is charged but an ignition switch is turned off, the circuit is simplified, and the cost is saved; (2) in the case of charging the vehicle but with the ignition switch off, the 24V battery can also be charged using the DC/DC converter, and since the 24V battery can be charged, the risk of the battery running short when the vehicle is parked for a long period can be eliminated.
Further, in the pure electric vehicle power supply control system, one end of a coil of the relay is grounded, and the other end of the coil is connected with a low-voltage output port of a vehicle charging socket.
Further, in the above-mentioned pure electric vehicles power supply control system, coil one end ground connection of relay, the output of BMS is connected to the other end, and BMS awakens up when the low-voltage electricity output port of vehicle charging socket is electrified, and BMS awakens up the back and outputs a control signal and makes the coil of relay get electric.
The utility model also provides a pure electric vehicles, including vehicle body and pure electric vehicles power supply control system, pure electric vehicles power supply control system is foretell pure electric vehicles power supply control system.
Drawings
FIG. 1 is a circuit diagram of a prior art power supply control system for a blade electric vehicle;
fig. 2 is a circuit diagram of a pure electric vehicle power supply control system in a vehicle embodiment of the present invention;
in the figure, CHG is a charging gun, SOK is a vehicle charging socket, 12V is a direct current 12V low voltage power, HV is a direct current high voltage power, BMS is a battery management system, DC/DC1 is a main DC/DC, DC/DC2 is a sub DC/DC, 24V is a direct current 24V low voltage power, BAT is a 24V battery, SW is a vehicle ignition switch, R is a relay, VCU is a vehicle controller, TBOX is a new energy monitoring host, and BTM is a battery thermal management system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
The embodiment of the vehicle is as follows:
the pure electric vehicles of this embodiment, including vehicle body and pure electric vehicles power supply control system, as shown in fig. 2, the pure electric vehicles power supply control system of this embodiment includes: the system comprises a battery management system BMS, a DC/DC converter (namely DC/DC1), a vehicle charging socket SOK, a 24V storage battery BAT, a vehicle ignition switch SW, a vehicle control unit VCU, a new energy monitoring host TBOX, a battery thermal management system BTM and a relay R, wherein the DC/DC converter is used for converting high voltage output by a high voltage output port of the vehicle charging socket into 24V low voltage;
the system comprises a BMS, a vehicle charging socket SOK, a vehicle power battery pack, a Battery Management System (BMS), a power supply and a power supply, wherein the wake-up signal input end of the BMS is connected with a 12V low-voltage output port of the vehicle charging socket SOK, and a high-voltage output port HV of the vehicle charging socket SOK is connected with the vehicle power battery pack through the BMS;
a high-voltage input pin of the DC/DC1 is connected with a high-voltage output port HV of a vehicle charging socket SOK, a voltage output pin OUT of the DC/DC1 is connected with the anode of a 24V storage battery BAT, an input enable pin IN of the DC/DC1 is connected with a vehicle ignition switch SW IN series and then connected with the anode of the 24V storage battery BAT, the cathode of the 24V storage battery BAT is grounded, and the series connection point of the input enable pin IN of the DC/DC1 and the vehicle ignition switch SW is also respectively connected with voltage input ends of VCU, TBOX and BTM;
the relay R comprises a coil part and a normally open contact part, the normally open contact of the relay R is connected with the vehicle ignition switch SW IN parallel (as can be seen from figure 2, one end of the normally open contact of the relay R is connected with the positive electrode of BAT, the other end of the normally open contact of the relay R is connected with the series connection point of the input enabling pin IN of the DC/DC1 and the vehicle ignition switch SW), whether the coil of the relay R is electrified or not is controlled by whether the 12V low-voltage output port of the vehicle charging socket SOK is electrified or not, when the 12V low-voltage output port of the vehicle charging socket SOK is electrified, the coil of the relay R is electrified, and when the 12V low-voltage output port of the vehicle charging socket SOK is not electrified.
In this embodiment, one end of the coil of the relay R is grounded, the other end of the coil is connected to the 12V low-voltage output port of the vehicle charging socket SOK, and the normally open contact of the relay R is connected in parallel with the vehicle ignition switch SW. As another embodiment, one end of the coil of the relay R may be grounded, and the other end of the coil may be connected to the output end of the BMS, so that the BMS wakes up when the 12V low voltage output port of the vehicle charging socket SOK is charged, and outputs a control signal to energize the coil of the relay R after the BMS wakes up.
The working principle of the pure electric vehicle power supply control system of the embodiment is as follows:
when the vehicle is connected with a charging gun CHG for charging and a vehicle ignition switch SW is closed, a charging socket SOK outputs 12V low-voltage electric activation BMS to electrify a coil of a relay R and close a normally open contact of the relay R, at the same time, a 24V storage battery BAT supplies power to an input enabling pin IN of DC/DC1 through a line where the normally open contact of the relay R is located, DC/DC1 starts to work, DC/DC1 converts high-voltage HV into 24V low-voltage electricity and outputs the 24V low-voltage electricity to VCU, TBOX and BTM through an output pin OUT (a power supply line is: output pin OUT of DC/DC1 → a line where the normally open contact of the relay R is located → VCU, TBOX and BTM), and DC/DC1 charges the 24V storage battery BAT (a charging line is: output pin OUT → BAT of DC/DC 1).
When the vehicle is connected with the charging gun CHG for charging and the vehicle ignition switch SW is turned on, the working principle is similar to that when the vehicle is connected with the charging gun CHG for charging and the vehicle ignition switch SW is turned off, and the description is omitted.
In summary, the pure electric vehicle power supply control system of the embodiment has the following advantages:
(1) the existing pure electric vehicle power supply control system shown in the figure 1 is improved by canceling the auxiliary DC/DC and adding the relay R, when the vehicle is charged but the ignition switch is turned off, the low-voltage output port of the vehicle charging socket is electrified, then the coil of the relay is electrified, the normally open contact of the relay is closed, and a 24V storage battery supplies power to the input enabling pin of the DC/DC converter through the line where the normally open contact of the relay is located, so that the vehicle main DC/DC maintainer can still be used as VCU, TBOX and BTM power supply, the circuit is simplified, and the cost is saved;
(2) under the condition that the vehicle is charged but the ignition switch is turned off, the DC/DC1 works to convert the high-voltage power output by the high-voltage power output port of the vehicle charging socket into 24V low-voltage power to charge the 24V storage battery, and the risk of power shortage of the storage battery when the vehicle is parked for a long time can be eliminated because the 24V storage battery can be charged.
Power supply control circuit embodiment:
as shown in fig. 2, the pure electric vehicle power supply control circuit of the embodiment includes: the system comprises a BMS, a DC/DC converter and a relay; the system comprises a BMS (battery management system), a DC/DC converter, a vehicle ignition switch, a vehicle charging socket, a vehicle management system and a battery thermal management system, wherein a wake-up signal input end of the BMS is used for connecting a low-voltage output port of the vehicle charging socket, a high-voltage input pin of the DC/DC converter is used for connecting a high-voltage output port of the vehicle charging socket, a voltage output pin of the DC/DC converter is used for connecting the anode of a 24V storage battery, an input enabling pin of the DC/DC converter is used for connecting the anode of the 24V storage battery after being connected with the vehicle ignition switch in series, and the series connection point of the input enabling pin of the DC/DC converter and the vehicle ignition switch is also respectively connected with the voltage input ends of the whole vehicle controller, the new energy monitoring host and the battery thermal management system; the relay includes coil part and normally open contact part, and the normally open contact of relay is used for connecting in parallel with vehicle ignition switch, and whether the coil of relay gets electric and receives the low-tension electricity output port of vehicle charging socket to control whether electrified, and the coil of relay gets electric when the low-tension electricity output port of vehicle charging socket is electrified, and the coil of relay loses electricity when the low-tension electricity output port of vehicle charging socket is uncharged.
The specific implementation of the power supply control circuit of the pure electric vehicle refers to vehicle embodiments, and details are not repeated here.
Power supply control system embodiment:
the pure electric vehicle power supply control system of this embodiment is as shown in fig. 2, and is the same as the pure electric vehicle power supply control system in the vehicle embodiment, and is not described herein again.

Claims (7)

1. A pure electric vehicle power supply control circuit comprises a BMS and a DC/DC converter, wherein a wake-up signal input end of the BMS is used for being connected with a low-voltage output port of a vehicle charging socket, a high-voltage input pin of the DC/DC converter is used for being connected with a high-voltage output port of the vehicle charging socket, a voltage output pin of the DC/DC converter is used for being connected with the anode of a 24V storage battery, an input enabling pin of the DC/DC converter is used for being connected with the anode of the 24V storage battery after being connected with a vehicle ignition switch in series, and a series connection point of the input enabling pin of the DC/DC converter and the vehicle ignition switch is also respectively connected with a voltage input end of a whole vehicle controller, a new energy monitoring host and a battery thermal management system; the vehicle charging socket is characterized in that the power supply control circuit further comprises a relay, the relay comprises a coil part and a normally open contact part, the normally open contact of the relay is used for being connected with a vehicle ignition switch in parallel, whether a coil of the relay is electrified or not is controlled by a low-voltage power output port of the vehicle charging socket, the coil of the relay is electrified when the low-voltage power output port of the vehicle charging socket is electrified, and the coil of the relay is not electrified when the low-voltage power output port of the vehicle charging socket is not electrified.
2. A pure electric vehicle power supply control circuit according to claim 1, wherein one end of the coil of the relay is grounded, and the other end of the coil is used for connecting a low-voltage output port of a vehicle charging socket.
3. The pure electric vehicle power supply control circuit according to claim 1, wherein one end of the coil of the relay is grounded, the other end of the coil is used for being connected with an output end of the BMS, the BMS is awakened when a low-voltage power output port of the vehicle charging socket is electrified, and the BMS outputs a control signal to electrify the coil of the relay after being awakened.
4. A pure electric vehicle power supply control system comprises a BMS, a DC/DC converter, a vehicle charging socket, a 24V storage battery, a vehicle ignition switch, a whole vehicle controller, a new energy monitoring host and a battery thermal management system, the system comprises a BMS (battery management system), a vehicle charging socket, a DC/DC converter, a vehicle ignition switch, a vehicle controller, a new energy monitoring host and a battery thermal management system, wherein the input end of a wake-up signal of the BMS is connected with a low-voltage output port of the vehicle charging socket, a high-voltage input pin of the DC/DC converter is connected with a high-voltage output port of the vehicle charging socket, a voltage output pin of the DC/DC converter is connected with the anode of the 24V storage battery, an input enabling pin of the DC/DC converter is connected with the anode of the 24V storage battery after being connected with the vehicle ignition switch in series, and the series connection point of the input enabling pin of the DC/DC converter and the vehicle ignition switch is also respectively connected with the voltage input ends of the vehicle controller, the new energy monitoring host and the battery thermal management system; the vehicle charging socket is characterized by further comprising a relay, the relay comprises a coil part and a normally open contact part, the normally open contact of the relay is connected with a vehicle ignition switch in parallel, whether the coil of the relay is electrified or not is controlled by the low-voltage output port of the vehicle charging socket, the coil of the relay is electrified when the low-voltage output port of the vehicle charging socket is electrified, and the coil of the relay is not electrified when the low-voltage output port of the vehicle charging socket is not electrified.
5. A pure electric vehicle power supply control system according to claim 4, wherein one end of the coil of the relay is grounded, and the other end of the coil of the relay is connected with a low-voltage power output port of a vehicle charging socket.
6. A pure electric vehicle power supply control system according to claim 4, wherein one end of the coil of the relay is grounded, the other end of the coil of the relay is connected with the output end of the BMS, the BMS is awakened when the low-voltage power output port of the vehicle charging socket is electrified, and the BMS outputs a control signal to electrify the coil of the relay after being awakened.
7. A pure electric vehicle comprises a vehicle body and a pure electric vehicle power supply control system, and is characterized in that the pure electric vehicle power supply control system is the pure electric vehicle power supply control system of any one of claims 4 to 6.
CN202120999500.6U 2021-05-11 2021-05-11 Pure electric vehicle and power supply control circuit and system thereof Active CN215042128U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120999500.6U CN215042128U (en) 2021-05-11 2021-05-11 Pure electric vehicle and power supply control circuit and system thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120999500.6U CN215042128U (en) 2021-05-11 2021-05-11 Pure electric vehicle and power supply control circuit and system thereof

Publications (1)

Publication Number Publication Date
CN215042128U true CN215042128U (en) 2021-12-07

Family

ID=79200103

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120999500.6U Active CN215042128U (en) 2021-05-11 2021-05-11 Pure electric vehicle and power supply control circuit and system thereof

Country Status (1)

Country Link
CN (1) CN215042128U (en)

Similar Documents

Publication Publication Date Title
CN105305541B (en) A kind of electric automobile low battery power control method and device
CN109435711A (en) A kind of new-energy automobile low tension battery preventing electric loss system and method
CN110303943B (en) Control method for high-voltage parallel system of double-branch power battery of pure electric rail locomotive
CN110601315A (en) Power supply system and method of high-voltage cable core temperature measurement system
CN109720202A (en) A kind of emergency start circuit when the low tension battery failure for electric car
CN212447121U (en) Subway train activation circuit
CN215042128U (en) Pure electric vehicle and power supply control circuit and system thereof
CN211731070U (en) Charging device for starting battery power shortage of electric automobile
CN202042930U (en) Battery management system for solar air conditioner
CN211032213U (en) Direct current fills electric pile low-power consumption control system
CN208369251U (en) A kind of more battery parallel charge-discharge control devices of automobile
CN210337644U (en) New energy automobile power battery full-time monitoring system
CN211592301U (en) Hydrogen energy vehicle power-on and power-off control device capable of automatically switching fuel and electricity in hybrid mode
CN210149163U (en) Power-on and power-off and control system of mobile charging vehicle charging system
CN113246809A (en) Power supply control system of hydrogen fuel cell automobile
CN112848936A (en) Direct current fills electric pile low-power consumption control system
CN102756664B (en) Range extender for electric vehicle and control method of range extender
CN113910936A (en) Vehicle-mounted charger and control method thereof
CN220022369U (en) Power battery system and engineering machinery
CN116278958B (en) Power battery management system and energy storage device
CN214874321U (en) 220V anti-charging drum charger for electric vehicle
CN218216755U (en) Power supply device for snow sweeper
CN216467444U (en) Vehicle and storage battery power supply device
CN216903089U (en) Zero-power-consumption control module of explosion-proof lithium battery system
CN215042107U (en) Lithium battery power-on control system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant