CN206211575U - A kind of automobile and automobile power supply system dormancy control circuit - Google Patents
A kind of automobile and automobile power supply system dormancy control circuit Download PDFInfo
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- CN206211575U CN206211575U CN201621128947.1U CN201621128947U CN206211575U CN 206211575 U CN206211575 U CN 206211575U CN 201621128947 U CN201621128947 U CN 201621128947U CN 206211575 U CN206211575 U CN 206211575U
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Abstract
A kind of automobile and automobile power supply system dormancy control circuit, including startup power supply, BMS main frames and at least one BMS slaves, CAN, at least one supply voltage detection unit and at least one slave PMU；The slave PMU is connected between the corresponding BMS slaves and startup power supply；Wherein, the BMS main frames enter starting state and resting state according to the enabling signal and stop signal of automobile, and control to power and power off to the CAN；The slave PMU controls electricity or power-off on the connected BMS slaves according to the supply voltage of the CAN.Start and stop state according to automobile, by the power supply of all BMS slaves of BMS host computer controls, to ensure automobile all slave module all power down dormancy in the case where not use is stopped, once automobile starting is waken up all slave module normal works by main frame again, greatly reduce the power consumption of system, it is to avoid startup power supply is under-voltage or off-capacity.
Description
Technical field
The utility model is related to battery control technology, and more particularly to a kind of automobile and automobile power supply system dormancy control are electric
Road.
Background technology
At present, all power supplies of BMS (Battery Management System, battery management system) system are all from vapour
Automobile battery 12V/24V D/C powers are powered, and BMS systems are in continuous state during automobile parking, and battery capacity is limited, to certain
Time storage battery energy can be depleted so that BMS system cisco unity malfunctions.
With the high speed development of New-energy electric vehicle, the BMS systems to electric automobile require increasingly harsher, mesh from power consumption
The electric power system of preceding electric automobile BMS is essentially all power taking, the electric power system of current slave on storage battery is started：
1. vehicle storage battery is for often electricity：All of slave module passes through CAN (Controller Area Network, controller
LAN) bus connection, wherein CAN include CAN+ ports, CAN- ports, GND ports, VCC+ ports, VCC- ports,
Wherein VCC+ ports and VCC- ports is taken from the startup power supply of automobile.Shortcoming has：All slave modules are serially connected in bus,
When a node power is destroyed follow-up module and will be stopped in bus；When startup power supply is under-voltage or off-capacity, it is impossible to
All of slave module will be stopped when providing the power supply of stabilization for slave module.
2. the power taking in battery case, takes several batteries for being powered to slave.Shortcoming has：The power supply disunity of CAN, can make
Into bus interference；Slave module is powered using startup power supply always can cause the inconsistency of battery to increase into degree.
Utility model content
Based on this, it is necessary to provide a kind of automobile power supply system dormancy control saved system energy consumption, reduce bus interference
Circuit.
The utility model provides a kind of automobile power supply system dormancy and controls circuit, including startup power supply and the startup
The BMS main frames and at least one BMS slaves being connected with the BMS main frames of power supply connection also include being connected with the BMS main frames
CAN, at least one supply voltage detection unit being connected with the power line of the CAN and at least one with it is described
The slave PMU of supply voltage detection unit connection；The slave PMU is connected to corresponding described
Between BMS slaves and startup power supply；
Wherein, the BMS main frames enter starting state and resting state according to the enabling signal and stop signal of automobile, and
Control to power and power off to the CAN；The slave PMU is controlled according to the supply voltage of the CAN
Electricity or power-off on the connected BMS slaves.
Preferably, the slave PMU includes controller and voltage conversion circuit, the voltage conversion circuit
Connected with the power port of the startup power supply and the corresponding BMS slaves；The controller is detected with the supply voltage
Unit and the voltage conversion circuit are connected, and the controller controls institute according to the supply voltage of the power line of the CAN
State voltage conversion circuit work.
Preferably, the voltage conversion circuit is Buck circuits or Boost circuit.
Preferably, the controller is boost pressure controller or buck controller.
Preferably, the slave PMU also includes that switching is switched, and the switching switch is connected to the startup
Power supply and the supply voltage detection unit are connected, for controlling the slave PMU to cut between automatically and manually
Change.
Preferably, the supply voltage detection unit includes photoelectrical coupler, the input termination institute of the photoelectrical coupler
The power line of CAN is stated, the photoelectrical coupler output connects the controller.
The utility model additionally provides a kind of automobile, including above-mentioned automobile power supply system dormancy control circuit.
A kind of automobile, including above-mentioned automobile power supply system dormancy control circuit.
Above-mentioned automobile power supply system dormancy controls circuit, the start and stop state according to automobile, by all BMS of BMS host computer controls
The power supply of slave, to ensure automobile all slave module all power down dormancy in the case where not use is stopped, once automobile starting
All slave module normal works are waken up by main frame again, the power consumption of system is greatly reduced, it is to avoid startup power supply is under-voltage or holds
Amount is not enough；In addition, providing the insulating power supply in CAN by the unification of BMS main frames, the CAN isolation electricity on each BMS slave is reduced
The cost in source is simpler in CAN structure, it is to avoid to cause bus to disturb.
Brief description of the drawings
Fig. 1 is the module diagram of automobile power supply system dormancy control circuit in the utility model preferred embodiment；
Fig. 2 is the circuit theory diagrams of automobile power supply system dormancy control circuit in the utility model first embodiment；
Fig. 3 is the circuit theory diagrams of automobile power supply system dormancy control circuit in the utility model second embodiment.
Specific embodiment
In order that the technical problems to be solved in the utility model, technical scheme and beneficial effect become more apparent, below
With reference to drawings and Examples, the utility model is further elaborated.It should be appreciated that specific implementation described herein
Example is only used to explain the utility model, is not used to limit the utility model.
Fig. 1 and Fig. 2 is referred to, automobile power supply system dormancy control circuit includes starting in the utility model preferred embodiment
The BMS slaves 130 that power supply 110 and the BMS main frames 120 and at least one of the connection of startup power supply 110 are connected with BMS main frames 120,
Also include the supply voltage that the CAN 140, at least one being connected with BMS main frames 120 is connected with the power line of CAN 140
The slave PMU 160 that detection unit 150 and at least one is connected with supply voltage detection unit 150；From electromechanical source
Administrative unit 160 is connected between corresponding BMS slaves 130 and startup power supply 110；Wherein, BMS main frames 120 are by startup power supply
110 often power supplies, BMS main frames 120 enter starting state and resting state, and control according to the enabling signal and stop signal of automobile
Power and power off to CAN 140；Slave PMU 160 connects according to the control of the supply voltage of CAN 140 with it
Electricity or power-off on the BMS slaves 130 for connecing.
BMS main frames 120 provide all of CAN 140 of system insulating power supply VCC+ and VCC-, and with CAN+, CAN-,
GND forms CAN 140 and is connected with BMS slaves 130.
When the car is stopped, BMS main frames 120 receive the insulating power supply VCC+ of CAN 140 after stop signal and
VCC- is closed, and BMS main frames 120 oneself enter dormancy low power consumpting state；It is total that supply voltage detection unit 150 does not detect CAN
During the supply voltage of the power line of line 140, feed back to slave PMU 160, slave PMU 160 by oneself
Cut-out battery supply line causes that BMS slaves 130 are in power-down state, reaches dormancy purpose；During normal work, work as automotive ignition
During startup, BMS main frames 120 receive enabling signal and automatically waken up, and insulating power supply, supply voltage detection are provided to CAN 140
Unit 150 detects the power supply signal of the power line of bus, and this signal is fed back into slave PMU 160, slave
PMU 160 connects the supply line of startup power supply 110 and BMS slaves 130, and BMS slaves 130 are started working.
In the present embodiment, slave PMU 160 includes voltage conversion circuit 162 and controller 164, voltage conversion
Circuit 162 is connected with the power port of startup power supply 110 and corresponding BMS slaves 130；Controller 164 is detected with supply voltage
Unit 150 and voltage conversion circuit 162 are connected, and controller 164 controls electricity according to the supply voltage of the power line of CAN 140
Voltage conversion circuit 162 works.
Preferably, voltage conversion circuit 162 is Buck circuits or Boost circuit.
Preferably, with reference to Fig. 3, slave PMU 160 also includes that switching switch S4, switching switch S4 are connected to and open
Dynamic power supply 110 and supply voltage detection unit 150 are connected, for controlling slave PMU 160 between automatically and manually
Switching.
Supply voltage detection unit 150 includes photoelectrical coupler OP1, the input termination CAN of photoelectrical coupler OP1
140 power line, photoelectrical coupler OP1 outputs connect controller 164.Preferably, controller 164 is boost pressure controller 164 or drop
Pressure controller 164.Supply voltage detection unit 150 can be a multiple, when being one, each slave PMU
160 supply voltages that CAN 140 is detected by the supply voltage detection unit 150；During for multiple, each is from electromechanical source
Administrative unit 160 detects the supply voltage of CAN 140 by corresponding supply voltage detection unit 150 respectively.
Switching switch S4 is single-pole double-throw switch (SPDT), and its moved end connects startup power supply 110, the first motionless termination photoelectrical coupler
The input of OP1 light-receiving devices, the output end of the second motionless termination photoelectrical coupler OP1 light-receiving devices and the test side of controller 164
Mouthful.Realize that control slave PMU 160 switches between automatically and manually.When moved end engages with the first motionless end, slave
PMU 160 is in auto state, the detection signal work according to supply voltage detection unit 150.Moved end and second
When motionless end engages, slave PMU 160 is in manual mode, always on startup power supply 110.
The light-receiving device of detection port (as shown in Figure 3 to enable pin ENABLE) with photoelectrical coupler OP1 of controller 164
End connection, when the power line of CAN 140 is powered, the light emitting source conducting of photoelectrical coupler OP1 so that photoelectrical coupler OP1
Light-receiving device be also switched on, the detection port of controller 164 is placed in low level, then (such as Fig. 3 shows the control port of controller 164
Output pin GDRV) output pwm signal control voltage change-over circuit 162 (specifically controlling metal-oxide-semiconductor) work make from electromechanical source
Administrative unit 160 has voltage output to BMS slaves 130.When the power line power down of CAN 140, the detection of controller 164
Port is placed in high level, and the control port of controller 164 is exported without pwm signal, and voltage conversion circuit 162 is turned off, and no-voltage is defeated
Go out to BMS slaves 130, for holding state.
It is understood that the test side mouthful of controller 164 is really the power supply ground terminal in slave PMU 160
Mouthful, when the port is placed in level, controller 164 and voltage conversion circuit 162 work, electricity on BMS slaves 130；Conversely, control
Device 164 and voltage conversion circuit 162 do not work, the power down of BMS slaves 130.
The utility model additionally provides a kind of automobile, including above-mentioned automobile power supply system dormancy control circuit.
Above-mentioned automobile power supply system dormancy controls circuit, the start and stop state according to automobile, is controlled to own by BMS main frames 120
The power supply of BMS slaves 130, to ensure automobile all slave module all power down dormancy in the case where not use is stopped, once vapour
Car startup is waken up all slave module normal works by main frame again, greatly reduces the power consumption of system, it is to avoid startup power supply 110
Under-voltage or off-capacity；In addition, by BMS main frames 120 unify provide CAN 140 on insulating power supply, reduce each BMS from
The cost of the CAN insulating power supplies on machine 130 is simpler in the structure of CAN 140, it is to avoid to cause bus to disturb.
Preferred embodiment of the present utility model is these are only, is not used to limit the utility model, it is all in this practicality
Any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (7)
1. the BMS main frames of a kind of automobile power supply system dormancy control circuit, including startup power supply and startup power supply connection and
At least one BMS slaves being connected with the BMS main frames, it is characterised in that also including total with the CAN that the BMS main frames are connected
Line, at least one supply voltage detection unit being connected with the power line of the CAN and at least one and power supply electricity
The slave PMU of pressure detection unit connection；The slave PMU is connected to the corresponding BMS slaves
Between startup power supply；
Wherein, the BMS main frames enter starting state and resting state, and control according to the enabling signal and stop signal of automobile
Power and power off to the CAN；The slave PMU is controlled and it according to the supply voltage of the CAN
Electricity or power-off on the BMS slaves of connection.
2. automobile power supply system dormancy as claimed in claim 1 controls circuit, it is characterised in that the slave power management list
Unit includes controller and voltage conversion circuit, the voltage conversion circuit and the startup power supply and the corresponding BMS slaves
Power port connection；The controller is connected with the supply voltage detection unit and the voltage conversion circuit, the control
Device processed controls the voltage conversion circuit work according to the supply voltage of the power line of the CAN.
3. automobile power supply system dormancy as claimed in claim 2 control circuit, it is characterised in that the voltage conversion circuit is
Buck circuits or Boost circuit.
4. automobile power supply system dormancy as claimed in claim 2 or claim 3 controls circuit, it is characterised in that the controller is liter
Pressure controller or buck controller.
5. automobile power supply system dormancy as claimed in claim 2 controls circuit, it is characterised in that the slave power management list
Unit also includes that switching is switched, and the switching switch is connected to the startup power supply and supply voltage detection unit connection, uses
Switch between automatically and manually in the slave PMU is controlled.
6. automobile power supply system dormancy as claimed in claim 2 controls circuit, it is characterised in that the supply voltage detection is single
Unit includes photoelectrical coupler, and the power line of the input termination CAN of the photoelectrical coupler, the photoelectrical coupler is defeated
Go out and connect the controller.
7. a kind of automobile, it is characterised in that control electricity including the automobile power supply system dormancy described in any one of claim 1 to 6
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621128947.1U CN206211575U (en) | 2016-10-17 | 2016-10-17 | A kind of automobile and automobile power supply system dormancy control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621128947.1U CN206211575U (en) | 2016-10-17 | 2016-10-17 | A kind of automobile and automobile power supply system dormancy control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206211575U true CN206211575U (en) | 2017-05-31 |
Family
ID=58756856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621128947.1U Expired - Fee Related CN206211575U (en) | 2016-10-17 | 2016-10-17 | A kind of automobile and automobile power supply system dormancy control circuit |
Country Status (1)
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|---|---|
| CN (1) | CN206211575U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681707A (en) * | 2016-10-17 | 2018-02-09 | 深圳市东方之星电源有限公司 | A kind of automobile and automobile power supply system dormancy control circuit |
| CN110208591A (en) * | 2019-04-30 | 2019-09-06 | 惠州市德赛西威汽车电子股份有限公司 | A kind of voltage detecting circuit and automobile of low quiescent current |
-
2016
- 2016-10-17 CN CN201621128947.1U patent/CN206211575U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681707A (en) * | 2016-10-17 | 2018-02-09 | 深圳市东方之星电源有限公司 | A kind of automobile and automobile power supply system dormancy control circuit |
| CN110208591A (en) * | 2019-04-30 | 2019-09-06 | 惠州市德赛西威汽车电子股份有限公司 | A kind of voltage detecting circuit and automobile of low quiescent current |
| CN110208591B (en) * | 2019-04-30 | 2021-07-30 | 惠州市德赛西威汽车电子股份有限公司 | Voltage detection circuit with low quiescent current and automobile |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170531 Termination date: 20191017 |
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| CF01 | Termination of patent right due to non-payment of annual fee |