CN208855434U - A kind of new energy vehicle power battery anticreeping fire alarm system - Google Patents
A kind of new energy vehicle power battery anticreeping fire alarm system Download PDFInfo
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- CN208855434U CN208855434U CN201821208579.0U CN201821208579U CN208855434U CN 208855434 U CN208855434 U CN 208855434U CN 201821208579 U CN201821208579 U CN 201821208579U CN 208855434 U CN208855434 U CN 208855434U
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- power battery
- controller
- entire car
- new energy
- car controller
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Abstract
A kind of new energy vehicle power battery anticreeping fire alarm system, including entire car controller and power battery；Entire car controller connects instrument, BMS module, monitoring host computer and five in one controller by CAN bus；The relay of control instrument, BMS module, monitoring host computer and the power supply of five in one controller is at least arranged in entire car controller connecting circuit box, interior of electrical box；The current sensor of BMS module connecting detection power battery interior electric current.After the utility model is by the electricity under key, to the delay cut-off of BMS module, the detection of the power battery electric discharge after realizing power-off, and then alarm, improve safety.
Description
Technical field
The utility model belongs to automobile-used control field, and in particular to a kind of new energy vehicle power battery anticreeping fire alarm system.
Background technique
Pure electric vehicle low-pressure system consists of two parts: a part be it is relevant to three electric systems, be related to three electric control
Device input and output (containing signal and power supply), such as the related harness on entire car controller；Another part is low other than three electric systems
Volt circuit, such as instrument, automobile data recorder etc..Two parts low-pressure system generally separately designs at present, the power supply of new energy low-pressure system
By vehicle control unit controls, low-voltage power supply system is sentenced by its own according to certain condition (such as key gear) except three electric systems
Disconnected, vehicle low-pressure system two parts cannot make full use of resource each other, can not achieve and be uniformly controlled.
Some vehicles for some reason (product quality problem operates with habit, product service life), make five simultaneously
In-one controller inside contactor is adhered, and high pressure cannot be fully disconnected when leading to electric under vehicle, in no monitoring and alarm condition
Under make battery capacity over-discharge, cause cell damage, generate huge economic loss.
Utility model content
The utility model provides one kind and can still alarm the electric leakage of power battery after electricity under key
Device, it is of the existing technology to solve the problems, such as.
The utility model uses following technical scheme:
A kind of new energy vehicle power battery anticreeping fire alarm system, including entire car controller and power battery；
Entire car controller connects instrument, BMS module, monitoring host computer and five in one controller by CAN bus；
Control instrument, BMS module, monitoring host computer and five is at least arranged in entire car controller connecting circuit box, interior of electrical box
The relay of in-one controller power supply；
The current sensor of BMS module connecting detection power battery interior electric current.
Power battery connects five in one controller by high-tension circuit, and five in one controller is connected negative by high-tension circuit
It carries.
Instrument includes the controller connecting with entire car controller, and control circuit, control circuit connection are arranged inside controller
Liquid crystal display and buzzer.
The utility model has the beneficial effects that after the utility model is by the electricity under key, to the delay cut-off of BMS module,
The detection of power battery electric discharge after realizing power-off, and then alarm, improve safety.
Detailed description of the invention
Fig. 1 is the system construction drawing of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, the utility model provides a kind of new energy vehicle power battery anticreeping fire alarm system, including full-vehicle control
Device and power battery；Entire car controller is the control of existing vehicle engine assembly, and power battery is to provide the power of vehicle operation
Source.Power battery connects BMS module, i.e. battery management system, and the management and monitoring of power battery are carried out by BMS.
In the utility model, entire car controller connects instrument, BMS module, monitoring host computer and five in one control by CAN bus
Device processed carries out information exchange, and entire car controller connecting circuit box by CAN bus and each module, by electrical appliance kit after
The control that electric appliance is powered above-mentioned each module.The instrument of control instrument power supply is at least arranged in i.e. above-mentioned interior of electrical box
The prison for the monitoring host computer power supply that supply relay, the BMS supply relay for controlling BMS module for power supply, control monitoring host computer are powered
Host supplying power relay is controlled, and the relay of control five in one controller power supply respectively.
Power battery connects five in one controller by high-tension circuit, and five in one controller is connected negative by high-tension circuit
It carries.Power battery also by high-tension circuit connect BMS module, electrical appliance kit by low-voltage circuit connection instrument, five in one controller,
Monitoring host computer, BMS module.
BMS module connects multiple current sensors of power battery interior, obtains power battery by current sensor
Electric current.
The working principle of the utility model are as follows:
Driver travels shutdown key electricity after terminating parking, and entire car controller controls BMS by the time relay and supplies at this time
Electrical relay is still attracted the time of setting, and BMS monitors whether power battery total current is zero, and battery system information is passed through
CAN bus issues entire car controller.
Due to key shutdown transient, vehicle control unit controls instrument power supply relay is powered off, electricity under instrument；Key powers off wink
Between, vehicle control unit controls five in one supply relay powers off, and electricity under five in one, inside contactor disconnects, the inside contactor
Be broken as theoretic disconnection, i.e., theoretically answer it is not charged, but if the contactor inside five in one is adhered, under vehicle
When electric, high pressure may not be able to be fully disconnected, at this time, it may be necessary to which the electric leakage to power battery is alarmed.
The utility model is after electricity under key, and BMS still works under the action of the time relay, and passes through BMS connection
Power battery interior power sensor detection power battery electric current, if it is possible to the electric current detected is not zero, then says
Bright power battery is still in electric discharge, and BMS sends current signal to entire car controller, and entire car controller obtains the electric current being not zero
After signal, entire car controller sends a signal to the actuation of instrument power supply relay, and instrument powers at this time, and the control circuit of instrument receives
After signal, word alarm is carried out by liquid crystal display on screen, word alarm can prompt that " power battery exists on instrument display screen
Electric discharge ", while audio alert is carried out by buzzer, realize acousto-optic and word alarm to electric leakage.And entire car controller passes through
Warning message is transmitted to new energy monitor supervision platform by monitoring host computer.
And if BMS continues that the letter that the electric current of power battery is not zero is not detected in the time be connected under key after electricity
Number, then vehicle control unit controls BMS supply relay disconnects, electricity under BMS.
It, can be directly by carrying out cutting for power battery manually after driver has found leakage-current alarm information to improve safety
It is disconnected, such as: it pulls out BMS insurance or telephone recourse after-sale service station takes measures to cut off electrical source of power；BMS persistently detects power
Battery current, until electrical source of power is cut off, entire car controller disconnects BMS and instrument power supply relay, electricity under BMS and instrument.Or
Person driver is broken, and rocker switch is electric and battery handle switch is electric, vehicle low-voltage power-off.
Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these also should be considered as
The protection scope of the utility model.
Claims (3)
1. a kind of new energy vehicle power battery anticreeping fire alarm system, it is characterised in that:
Including entire car controller and power battery；
Entire car controller connects instrument, BMS module, monitoring host computer and five in one controller by CAN bus；
Control instrument, BMS module, monitoring host computer and five in one is at least arranged in entire car controller connecting circuit box, interior of electrical box
The relay of controller power supply；
The current sensor of BMS module connecting detection power battery interior electric current.
2. a kind of new energy vehicle power battery anticreeping fire alarm system according to claim 1, it is characterised in that:
Power battery connects five in one controller by high-tension circuit, and five in one controller is connected by high-tension circuit and loaded.
3. a kind of new energy vehicle power battery anticreeping fire alarm system according to claim 1, it is characterised in that:
Instrument includes the controller connecting with entire car controller, and control circuit is arranged inside controller, and control circuit connects liquid crystal
Screen and buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821208579.0U CN208855434U (en) | 2018-07-28 | 2018-07-28 | A kind of new energy vehicle power battery anticreeping fire alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821208579.0U CN208855434U (en) | 2018-07-28 | 2018-07-28 | A kind of new energy vehicle power battery anticreeping fire alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208855434U true CN208855434U (en) | 2019-05-14 |
Family
ID=66413446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821208579.0U Active CN208855434U (en) | 2018-07-28 | 2018-07-28 | A kind of new energy vehicle power battery anticreeping fire alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208855434U (en) |
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2018
- 2018-07-28 CN CN201821208579.0U patent/CN208855434U/en active Active
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