CN116316993A - Protection device for preventing storage battery from being deficient in power, control method and early warning method - Google Patents
Protection device for preventing storage battery from being deficient in power, control method and early warning method Download PDFInfo
- Publication number
- CN116316993A CN116316993A CN202310310891.XA CN202310310891A CN116316993A CN 116316993 A CN116316993 A CN 116316993A CN 202310310891 A CN202310310891 A CN 202310310891A CN 116316993 A CN116316993 A CN 116316993A
- Authority
- CN
- China
- Prior art keywords
- storage battery
- early warning
- power supply
- voltage
- vehicle
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000002950 deficient Effects 0.000 title claims description 7
- BULVZWIRKLYCBC-UHFFFAOYSA-N phorate Chemical compound CCOP(=S)(OCC)SCSCC BULVZWIRKLYCBC-UHFFFAOYSA-N 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019506 cigar Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0069—Charging or discharging for charge maintenance, battery initiation or rejuvenation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a protection device for preventing battery power shortage, a control method and an early warning method, which are based on a battery voltage value acquired by a vehicle-mounted terminal, judge whether an electric appliance is not closed or the quiescent current of the vehicle-mounted terminal is lost by comparing a discharge characteristic curve equation of the battery voltage and time when electric equipment connected with normal electricity is operated after a key is powered off, and when the battery voltage is reduced to a preset grading early warning voltage value, an internet of things platform pushes early warning information to an after-sale service department and a user APP end to prompt a user to process in time. The invention can effectively prevent the battery from losing power, prolong the service life of the battery and reduce the maintenance and replacement cost.
Description
Technical Field
The invention relates to a protection device for preventing storage battery from losing power, a control method and an early warning method, and belongs to the field of engineering machinery.
Background
The excavator storage battery is an important component part of the excavator, except for supplying power to an excavator starting circuit during starting, and supplying power to electric equipment when the generator does not generate electricity, low idle speed power generation is insufficient or overload; in addition, the storage battery is equivalent to a large capacitor, can absorb instantaneous overvoltage appearing in a circuit, protects electronic elements and keeps the voltage of the whole vehicle electrical system stable. Therefore, the electric efficiency of the whole vehicle is improved, the power consumption of the storage battery is reduced, and the electric system of the whole vehicle is ensured to work normally.
When the user turns off the key switch without turning off the power supply main switch and does not use the vehicle for a long time, the battery is seriously consumed and even scrapped due to the fact that the electric appliance connected to the normal electricity is not turned off or the quiescent current is lost. At present, no effective prevention and early warning is performed for the situation.
At present, the electric appliances such as the on-board terminal of the excavator, the indoor lamp, the cigar lighter, the engine ECM and the like are generally connected to constant electricity, and can work after the key switch is disconnected. Along with the continuous intelligent development trend of engineering machinery, more and more electric appliances are used for the whole vehicle, particularly on a pure electric excavator, a plurality of electric appliances connected to the constant electricity are added, such as a DC/DC controller, a VCU, TMS, BMS and the like, and the quiescent current loss of the whole vehicle is greatly increased. Only when the main power switch is turned off, the electric appliances can be turned off.
When the user turns off the key switch without turning off the power supply main switch and does not use the vehicle for a long time, the battery is seriously consumed or even scrapped due to the fact that the electric appliance (such as an indoor lamp) connected to the normal electricity is not turned off or the quiescent current is lost. At present, the situation is not effectively prevented and early-warned, after the fault occurs, service personnel need to go to the door to check the fault reason, and the storage battery is replaced, so that the waste of manpower and material resources is caused.
Disclosure of Invention
The invention provides a protection device for preventing battery power shortage, a control method and an early warning method, which are based on a battery voltage value acquired by a vehicle-mounted terminal, and judge whether an electric appliance is not closed or the static current of a normal ECU unit is lost by comparing a discharge characteristic curve equation of the battery voltage and time when electric equipment connected with normal electricity is in work after a key is powered off, and when the battery voltage is reduced to a preset grading early warning voltage value, an Internet of things platform pushes early warning information to an after-sale service department and a user APP end to prompt a user to process in time. The problems disclosed in the background art are solved.
In order to solve the technical problems, the invention adopts the following technical scheme: the protection device for preventing the power shortage of the storage battery comprises a power supply main switch S0, a key switch S1, a power supply relay K1, a vehicle-mounted terminal A1, a relay K2, a safety disc F1, a safety disc F2, a safety disc F3 and a safety disc F4;
one end of the power supply main switch S0 is connected with the positive electrode of the storage battery G1, the storage battery G1 provides a direct current power supply, and the other end of the power supply main switch S0 provides a constant power supply through the rupture disc F1; one end of the key SWITCH S1 is connected with a constant electric power supply through a rupture disc F2, and the other end of the key SWITCH S1 is respectively connected with a data acquisition end SWITCH1 and a power relay K1 of the vehicle-mounted terminal A1; one end of a coil terminal of the power relay K1 is grounded, and the other end of the coil terminal is connected with the key switch S1; one end of a contact terminal of the power relay K1 is connected with a constant power supply, and the other end of the contact terminal outputs key power; the vehicle-mounted terminal A1 is connected with the anode of the storage battery G1 through a safety disc F3; one end of a normally closed contact terminal of the relay K2 is connected with a normal electric power supply through a safety disc F4, and the other end of the normally closed contact terminal of the relay K2 is connected with electric equipment; one end of the action coil terminal of the relay K2 is grounded, and the other end of the action coil terminal of the relay K2 is connected with a data output port OUT1 of the vehicle-mounted terminal A1; one end of the reset coil terminal of the relay K2 is grounded, and the other end of the reset coil terminal is connected with a data output port OUT2 of the vehicle-mounted terminal A1.
Further, the relay K2 is a double-coil magnetic latching relay.
A control method of a protection device for preventing the power shortage of a storage battery,
after the vehicle-mounted terminal A1 judges that the key SWITCH S1 is closed through the data acquisition terminal SWITCH1,
when the power supply main switch S0 and the electric equipment are not closed, the voltage of the storage battery G1 is lower than a first-stage early warning value V1 for a duration time t1, and the Internet of things platform pushes first-stage early warning information to a user;
the voltage of the storage battery G1 continuously drops, the voltage is lower than a second-stage early warning value V2 and the duration time is t1, a data output port OUT1 outputs a high level, a relay K2 action coil is powered on, a contact load is disconnected, and an Internet of things platform pushes second-stage early warning information to a user;
when the vehicle-mounted terminal A1 detects that the voltage of the storage battery G1 is higher than a preset value V0 for a duration t1, the data output port OUT2 outputs a high level, the reset coil of the relay K2 is powered on, and the contact load is connected;
wherein V0 > V1 > V2.
Further, the duration t1 is > 5 seconds.
An early warning method of a protection device for preventing the power shortage of a storage battery, after a key switch S1 is closed,
if the power supply main switch S0 is not closed and the electric equipment is not closed, the vehicle-mounted terminal A1 reads the voltage of the storage battery G1 every time period t2 and compares the voltage with a first early warning value V1; if the voltage of the storage battery G1 is lower than a first-level early warning value V1 and the duration time is t1, the Internet of things platform pushes the first-level early warning information to a user; if the voltage of the storage battery G1 continuously drops and is lower than the second-stage early warning value V2 for a duration t1, the relay K2 acts on the coil to turn off the power supply of the electric equipment, and the Internet of things platform pushes the second-stage early warning information to a user;
if the power supply main switch S0 is not closed and the electric equipment is closed, the vehicle-mounted terminal reads the voltage of the storage battery G1 every time period t3 and compares the voltage with a third early warning value V3; if the voltage of the storage battery G1 continuously drops and is lower than a third-level early warning value V3 and the duration time is t1, the Internet of things platform pushes third-level early warning information to a user; if the voltage of the storage battery G1 is lower than a fourth-level early warning value V4 and the duration time is t1, the vehicle-mounted terminal A1 is powered off, and the Internet of things platform pushes fourth-level early warning information to a user;
if the power supply main switch is turned off, the vehicle-mounted terminal A1 reads the voltage value of the storage battery every time period t4 and compares the voltage value with a fourth early warning value V4; if the voltage of the storage battery G1 is lower than a fourth-level early warning value V4 and the duration time is t1, the vehicle-mounted terminal A1 is powered off, and the Internet of things platform pushes fourth-level early warning information to a user;
wherein V1 > V2 > V3 > V4.
Further, the duration t2 is 2 hours.
Further, the duration t3 is 12 hours.
Further, the duration t4 is 24 hours.
Further, after the key switch S1 is turned off, the vehicle terminal A1 reads the voltages at two ends of the storage battery G1V 0 And go to sleep;
after two hours, the vehicle-mounted terminal A1 wakes up, and the voltage of the storage battery G1 is readV 1 。
Further, the judging method for whether the power supply main switch S0 and the electric equipment are closed is as follows:
presetting the state A as the state A of the power supply main switch S0 which is not closed and the electric equipment which is not closed, and fitting a characteristic curve into a curve equationV A =F A (t)；
Presetting the power supply main switch S0 to be not closed and the power consumption equipment to be closed as a state B, and fitting a characteristic curve into a curve equationV B =F B (t)；
Turning off the power supply main switch S0 to be preset as a state C, fitting a characteristic curve into a curve equationV C =F C (t)；
According to the initial value of the battery voltage G1V 0 Solving the initial discharge timet 0 And then willt 0 +2 substituting into curve equation to solveV A 、V B AndV C Will beV A 、V B AndV C And (3) withV 1 And comparing, judging which of the characteristic curves of the preset state A, B, C is matched with the discharge characteristic, and further judging whether the power supply main switch S0 and the electric equipment are closed or not.
The invention has the beneficial effects that: the invention can effectively prevent the battery from losing power, prolong the service life of the battery and reduce the maintenance and replacement cost.
Drawings
FIG. 1 is a schematic diagram of the circuit principle of the present invention;
FIG. 2 is a graph showing discharge characteristics of battery voltage and time in three states according to the present invention;
FIG. 3 is a flow chart of the early warning method of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1, the protection device for preventing the battery from being deficient in power comprises a battery G1, a main power switch S0, a key switch S1, a power relay K1, a vehicle-mounted terminal A1, a relay K2, a safety piece F1, a safety piece F2, a safety piece F3, a safety piece F4, a safety piece F5 and electric equipment connected with normal electricity (in this embodiment, an indoor lamp E1 and an engine controller A2 are taken as an example).
The storage battery G1 provides a direct current power supply for an excavator electrical system; one end of the power supply main switch S0 is connected with the positive electrode of the storage battery G1, and the other end of the power supply main switch S is used for providing a constant power supply for the whole machine through the safety disc F1; one end of the key SWITCH S1 is connected to a constant electric power supply through a safety disc F2, and the other end of the key SWITCH S1 is respectively connected with a data acquisition end SWITCH1 and a power relay K1 of the vehicle-mounted terminal A1; one end of a coil terminal of the power relay K1 is grounded, the other end of the coil terminal is connected with the key switch S1, a contact terminal 30 of the power relay K1 is connected with a constant power supply, and a 87 end of the power relay K1 outputs key power; the vehicle-mounted terminal A1 and the indoor lamp E1 are connected with a constant electric power supply, and the indoor lamp E1 is connected with a contact end of the double-coil magnetic latching relay K2 and a rocker switch; one end of the normally closed contact terminal of the relay K2 is normally electrified, and the other end of the normally closed contact terminal of the relay K2 is connected with the indoor lamp E1; one end of an action coil terminal of the relay K2 is grounded, and the other end of the action coil terminal is connected with a data output port OUT1 of the vehicle-mounted terminal A1; the engine controller A2 is connected with a constant-power supply through a rupture disc F5; the PWR port of the vehicle-mounted terminal A1 is connected with the anode of the storage battery G1 through the rupture disc F3, the GND port of the vehicle-mounted terminal A1 is grounded, and the vehicle-mounted terminal A1 is respectively connected with the GPS antenna and the GSM antenna.
The relay K2 is preferably a double-coil magnetic latching relay, so that the cost is low, the energy is not consumed after the state conversion, and the energy and the electricity are saved.
When the vehicle-mounted terminal controller A1 judges that the vehicle is flameout through the key switch S1 and the power supply main switch S0 and the indoor lamp E1 are not closed, the power supply voltage, namely the storage battery voltage, is lower than a first-stage early warning value V1 and lasts for more than 5 seconds, and the Internet of things platform pushes first-stage early warning information to a user APP; when the voltage of the storage battery continuously drops and is lower than a second-level early warning value V2 and lasts for more than 5 seconds, an OUT1 port outputs a high level, a relay K2 action coil is electrified, a contact load is disconnected, and an Internet of things platform pushes second-level early warning information to a user; and one end of a relay K2 reset coil terminal is grounded, the other end of the relay K2 reset coil terminal is connected with a data output port OUT2 of the vehicle-mounted terminal A1, when the vehicle-mounted terminal controller A1 detects that the power supply voltage, namely the storage battery voltage, is higher than a preset value V0 for more than 5 seconds, the data output port OUT2 outputs a high level, the relay K2 reset coil is electrified, and the contact load is connected. Wherein, the preset voltage value satisfies V0 > V1 > V2.
According to another aspect of the present invention, there is provided a protection device early warning method for preventing battery power shortage:
the uploading frequency of the data of the vehicle-mounted terminal A1 can be set remotely by the Internet of things platform or according to the uploading frequency of the parameters set during initialization, and the initial default uploading time interval is 2 hours.
As shown in fig. 2, the discharge characteristic curves of the battery voltage and time under different discharge currents are shown in the graph a, wherein the characteristic curve a is in a preset state that the key switch S1 is turned off, the power main switch S0 is not turned off, and the indoor lamp E1 is not turned off; the characteristic curve B is in a preset state that the key switch S1 is turned off, the power supply main switch S0 is not turned off, and the indoor lamp E1 is turned off; the characteristic curve C is in a preset state where the key switch S1 is turned off and the power master switch S0 is turned off.
Fitting a characteristic curve of the voltage and the discharge time of the storage battery into a curve equation under a preset state A that the key switch S1 is disconnected, the power supply main switch S0 is not closed and the indoor lamp E1 is not closedV A =F A (t) Pre-stored in the vehicle-mounted terminal A1; under the preset state B that the key switch S1 is disconnected, the power supply main switch S0 is not closed, and the indoor lamp E1 is closed, namely when the engine controller A2 and the vehicle-mounted terminal A1 have the static current loss, the characteristic curve of the voltage and the discharge time of the storage battery is fitted into a curve equationV B =F B (t) Pre-stored in the vehicle-mounted terminal A1; in a preset state C in which the key switch S1 is turned off and the power supply main switch S0 is turned off, namely, only the quiescent current of the vehicle-mounted terminal A1 is lost, the characteristic curve of the voltage and the discharge time of the storage battery is fitted into a curve equationV C =F C (t) Stored in the in-vehicle terminal A1 in advance.
After the key is powered off, the vehicle-mounted terminal A1 reads voltages at two ends of the storage batteryV 0 And go to sleep;
after two hours, the vehicle-mounted terminal wakes up and reads the voltage of the storage batteryV 1 ；
According to the initial value of the voltage of the storage batteryV 0 Solving fort 0 And then willt 0 +2 substitution into three curve equation solutionsV A 、V B AndV C And (3) withV 1 Comparing, judging which preset curve A, B, C the discharge characteristic accords with, and further judging whether the power supply main switch and the indoor lamp are turned off or not;
as shown in fig. 3, if the power main switch S0 is not turned off and the indoor lamp E1 is not turned off, the battery voltage is read and compared with the first warning value V1 when the vehicle-mounted terminal A1 wakes up every 2 hours; if the power supply voltage, namely the voltage of the storage battery is lower than the first-stage early warning value V1 and lasts for more than 5 seconds, the Internet of things platform pushes the first-stage early warning information to the user APP, and the early warning information can be set as 'indoor lamp is not closed', so that the storage battery is possibly deficient; if the power supply voltage, namely the storage battery voltage, continues to drop and is lower than the second-stage early warning value V2 for more than 5 seconds, the relay K2 acts on the coil to cut off the indoor lamp E1, the Internet of things platform pushes the second-stage early warning information to the user APP, and the early warning information can be set as 'the indoor lamp is not closed, the storage battery is possibly caused to be deficient, and the storage battery is automatically closed for you';
if the power supply main switch S0 is not closed and the indoor lamp E1 is closed, when the vehicle-mounted terminal wakes up every 12 hours, the voltage of the storage battery is read and compared with a third early warning value V3; if the power supply voltage, namely the storage battery voltage, continues to drop and is lower than the third-level early warning value V3 for more than 5 seconds, the Internet of things platform pushes third-level early warning information to the user APP, the early warning information can be set as 'the power supply main switch is not closed, the static current loss can cause the storage battery to be deficient in power, and the storage battery is closed in time'; if the power supply voltage, namely the storage battery voltage, is lower than the fourth-level early-warning value V4 and lasts for more than 5 seconds, the vehicle-mounted terminal A1 cuts off the main power supply, the Internet of things platform pushes fourth-level early-warning information to the user APP, and the early-warning information can be set as ' storage battery under-voltage ', and the vehicle-mounted terminal cuts off the main power supply ';
if the power supply main switch is closed, when the vehicle-mounted terminal A1 wakes up every 24 hours, the voltage value of the storage battery is read and compared with a fourth early warning value V4; if the power supply voltage, namely the storage battery voltage, is lower than the fourth-level early-warning value V4 and lasts for more than 5 seconds, the vehicle-mounted terminal cuts off the main power supply, the Internet of things platform pushes fourth-level early-warning information to the user APP, the early-warning information can be set as ' storage battery under-voltage ', and the vehicle-mounted terminal cuts off the main power supply '.
Wherein, the relation of early warning value at each level is: v1 > V2 > V3 > V4.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (10)
1. A protection device for preventing battery power shortage is characterized in that: the safety device comprises a power supply main switch S0, a key switch S1, a power supply relay K1, a vehicle-mounted terminal A1, a relay K2, a safety piece F1, a safety piece F2, a safety piece F3 and a safety piece F4;
one end of the power supply main switch S0 is connected with the positive electrode of the storage battery G1, the storage battery G1 provides a direct current power supply, and the other end of the power supply main switch S0 provides a constant power supply through the rupture disc F1; one end of the key SWITCH S1 is connected with a constant electric power supply through a rupture disc F2, and the other end of the key SWITCH S1 is respectively connected with a data acquisition end SWITCH1 and a power relay K1 of the vehicle-mounted terminal A1; one end of a coil terminal of the power relay K1 is grounded, and the other end of the coil terminal is connected with the key switch S1; one end of a contact terminal of the power relay K1 is connected with a constant power supply, and the other end of the contact terminal outputs key power; the vehicle-mounted terminal A1 is connected with the anode of the storage battery G1 through a safety disc F3; one end of a normally closed contact terminal of the relay K2 is connected with a normal electric power supply through a safety disc F4, and the other end of the normally closed contact terminal of the relay K2 is connected with electric equipment; one end of the action coil terminal of the relay K2 is grounded, and the other end of the action coil terminal of the relay K2 is connected with a data output port OUT1 of the vehicle-mounted terminal A1; one end of the reset coil terminal of the relay K2 is grounded, and the other end of the reset coil terminal is connected with a data output port OUT2 of the vehicle-mounted terminal A1.
2. The battery-starved protection device of claim 1, wherein: the relay K2 is a double-coil magnetic latching relay.
3. A control method of a protection device for preventing battery power shortage according to claim 1, characterized in that:
after the vehicle-mounted terminal A1 judges that the key SWITCH S1 is closed through the data acquisition terminal SWITCH1,
when the power supply main switch S0 and the electric equipment are not closed, the voltage of the storage battery G1 is lower than a first-stage early warning value V1 for a duration time t1, and the Internet of things platform pushes first-stage early warning information to a user;
the voltage of the storage battery G1 continuously drops, the voltage is lower than a second-stage early warning value V2 and the duration time is t1, a data output port OUT1 outputs a high level, a relay K2 action coil is powered on, a contact load is disconnected, and an Internet of things platform pushes second-stage early warning information to a user;
when the vehicle-mounted terminal A1 detects that the voltage of the storage battery G1 is higher than a preset value V0 for a duration t1, the data output port OUT2 outputs a high level, the reset coil of the relay K2 is powered on, and the contact load is connected;
wherein V0 > V1 > V2.
4. The control method of the battery-power-loss prevention protection device according to claim 3, characterized in that: the duration t1 is > 5 seconds.
5. An early warning method based on the protection device for preventing the battery from being deficient in power, which is characterized in that:
after the key switch S1 is turned off,
if the power supply main switch S0 is not closed and the electric equipment is not closed, the vehicle-mounted terminal A1 reads the voltage of the storage battery G1 every time period t2 and compares the voltage with a first early warning value V1; if the voltage of the storage battery G1 is lower than a first-level early warning value V1 and the duration time is t1, the Internet of things platform pushes the first-level early warning information to a user; if the voltage of the storage battery G1 continuously drops and is lower than the second-stage early warning value V2 for a duration t1, the relay K2 acts on the coil to turn off the power supply of the electric equipment, and the Internet of things platform pushes the second-stage early warning information to a user;
if the power supply main switch S0 is not closed and the electric equipment is closed, the vehicle-mounted terminal reads the voltage of the storage battery G1 every time period t3 and compares the voltage with a third early warning value V3; if the voltage of the storage battery G1 continuously drops and is lower than a third-level early warning value V3 and the duration time is t1, the Internet of things platform pushes third-level early warning information to a user; if the voltage of the storage battery G1 is lower than a fourth-level early warning value V4 and the duration time is t1, the vehicle-mounted terminal A1 is powered off, and the Internet of things platform pushes fourth-level early warning information to a user;
if the power supply main switch is turned off, the vehicle-mounted terminal A1 reads the voltage value of the storage battery every time period t4 and compares the voltage value with a fourth early warning value V4; if the voltage of the storage battery G1 is lower than a fourth-level early warning value V4 and the duration time is t1, the vehicle-mounted terminal A1 is powered off, and the Internet of things platform pushes fourth-level early warning information to a user;
wherein V1 > V2 > V3 > V4.
6. The method for pre-warning the protection device for preventing the power shortage of the storage battery according to claim 5, wherein the method comprises the following steps: the duration t2 is 2 hours.
7. The method for pre-warning the protection device for preventing the power shortage of the storage battery according to claim 5, wherein the method comprises the following steps: the duration t3 is 12 hours.
8. The method for pre-warning the protection device for preventing the power shortage of the storage battery according to claim 5, wherein the method comprises the following steps: the duration t4 is 24 hours.
9. The method for pre-warning the protection device for preventing the power shortage of the storage battery according to claim 5, wherein the method comprises the following steps: after the key switch S1 is closed, the vehicle-mounted terminal A1 is also used for reading the voltages at two ends of the storage battery G1V 0 And go to sleep;
after two hours, the vehicle-mounted terminal A1 wakes up, and the voltage of the storage battery G1 is readV 1 。
10. The method for pre-warning the protection device for preventing the power shortage of the storage battery according to claim 9, wherein the method comprises the following steps: the judging method for whether the power supply main switch S0 and the electric equipment are closed or not comprises the following steps:
presetting the state A as the state A of the power supply main switch S0 which is not closed and the electric equipment which is not closed, and fitting a characteristic curve into a curve equationV A =F A (t)；
Presetting the power supply main switch S0 to be not closed and the power consumption equipment to be closed as a state B, and fitting a characteristic curve into a curve equationV B =F B (t)；
Turning off the power supply main switch S0 to be preset as a state C, fitting a characteristic curve into a curve equationV C =F C (t)；
According to the initial value of the battery voltage G1V 0 Solving the initial discharge timet 0 And then willt 0 +2 substituting into curve equation to solveV A 、V B AndV C Will beV A 、V B AndV C And (3) withV 1 And comparing, judging which of the characteristic curves of the preset state A, B, C is matched with the discharge characteristic, and further judging whether the power supply main switch S0 and the electric equipment are closed or not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310310891.XA CN116316993B (en) | 2023-03-28 | 2023-03-28 | Protection device for preventing storage battery from being deficient in power, control method and early warning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310310891.XA CN116316993B (en) | 2023-03-28 | 2023-03-28 | Protection device for preventing storage battery from being deficient in power, control method and early warning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116316993A true CN116316993A (en) | 2023-06-23 |
| CN116316993B CN116316993B (en) | 2023-09-29 |
Family
ID=86803036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310310891.XA Active CN116316993B (en) | 2023-03-28 | 2023-03-28 | Protection device for preventing storage battery from being deficient in power, control method and early warning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116316993B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005096598A (en) * | 2003-09-25 | 2005-04-14 | Auto Network Gijutsu Kenkyusho:Kk | On-vehicle power distribution device |
| US20130200690A1 (en) * | 2012-02-08 | 2013-08-08 | Guy T. Rini | Intelligent Battery Disconnect |
| CN203438958U (en) * | 2013-07-26 | 2014-02-19 | 浙江吉利汽车有限公司 | Embedded storage battery outage protector |
| CN203543708U (en) * | 2013-11-15 | 2014-04-16 | 安徽江淮汽车股份有限公司 | Intelligent electric quantity reminding system |
| CN104477109A (en) * | 2014-11-25 | 2015-04-01 | 温州北方电子机械有限公司 | Automobile power supply intelligent main switch and control method thereof |
| CN106364426A (en) * | 2016-09-30 | 2017-02-01 | 安徽江淮汽车股份有限公司 | Automobile starting and stopping protective system and method |
| CN209375122U (en) * | 2019-02-21 | 2019-09-10 | 安徽安凯汽车股份有限公司 | Prevent the protection circuit of car electrical appliance over-discharge |
| CN210852338U (en) * | 2019-07-17 | 2020-06-26 | 郑州宇通客车股份有限公司 | Insufficient voltage prevention control system for storage battery and vehicle |
| WO2022063275A1 (en) * | 2020-09-27 | 2022-03-31 | 深圳市华思旭科技有限公司 | Control system, emergency starting power supply and intelligent battery clip |
| CN114954309A (en) * | 2022-03-11 | 2022-08-30 | 重庆长安汽车股份有限公司 | Automobile static power supply management system, method, power shortage prevention device, equipment and medium |
| CN115071607A (en) * | 2022-07-04 | 2022-09-20 | 中国重汽集团福建海西汽车有限公司 | Control device for preventing vehicle storage battery from being lack of power and control method thereof |
| CN115214502A (en) * | 2021-06-28 | 2022-10-21 | 广州汽车集团股份有限公司 | Vehicle power shortage detection and processing method, device and system based on gateway |
| WO2023039844A1 (en) * | 2021-09-17 | 2023-03-23 | 华为技术有限公司 | Vehicle starting method, power supply and vehicle |
-
2023
- 2023-03-28 CN CN202310310891.XA patent/CN116316993B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005096598A (en) * | 2003-09-25 | 2005-04-14 | Auto Network Gijutsu Kenkyusho:Kk | On-vehicle power distribution device |
| US20130200690A1 (en) * | 2012-02-08 | 2013-08-08 | Guy T. Rini | Intelligent Battery Disconnect |
| CN203438958U (en) * | 2013-07-26 | 2014-02-19 | 浙江吉利汽车有限公司 | Embedded storage battery outage protector |
| CN203543708U (en) * | 2013-11-15 | 2014-04-16 | 安徽江淮汽车股份有限公司 | Intelligent electric quantity reminding system |
| CN104477109A (en) * | 2014-11-25 | 2015-04-01 | 温州北方电子机械有限公司 | Automobile power supply intelligent main switch and control method thereof |
| CN106364426A (en) * | 2016-09-30 | 2017-02-01 | 安徽江淮汽车股份有限公司 | Automobile starting and stopping protective system and method |
| CN209375122U (en) * | 2019-02-21 | 2019-09-10 | 安徽安凯汽车股份有限公司 | Prevent the protection circuit of car electrical appliance over-discharge |
| CN210852338U (en) * | 2019-07-17 | 2020-06-26 | 郑州宇通客车股份有限公司 | Insufficient voltage prevention control system for storage battery and vehicle |
| WO2022063275A1 (en) * | 2020-09-27 | 2022-03-31 | 深圳市华思旭科技有限公司 | Control system, emergency starting power supply and intelligent battery clip |
| CN115214502A (en) * | 2021-06-28 | 2022-10-21 | 广州汽车集团股份有限公司 | Vehicle power shortage detection and processing method, device and system based on gateway |
| WO2023039844A1 (en) * | 2021-09-17 | 2023-03-23 | 华为技术有限公司 | Vehicle starting method, power supply and vehicle |
| CN114954309A (en) * | 2022-03-11 | 2022-08-30 | 重庆长安汽车股份有限公司 | Automobile static power supply management system, method, power shortage prevention device, equipment and medium |
| CN115071607A (en) * | 2022-07-04 | 2022-09-20 | 中国重汽集团福建海西汽车有限公司 | Control device for preventing vehicle storage battery from being lack of power and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116316993B (en) | 2023-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110303943B (en) | Control method for high-voltage parallel system of double-branch power battery of pure electric rail locomotive | |
| CN105383320B (en) | One kind is used for cell management system of electric automobile alternative power source system and application method | |
| CN110641284A (en) | Low-voltage power supply management system for safety monitoring of power battery of electric automobile | |
| CN111660871A (en) | Novel power supply system and power supply method of new energy automobile | |
| US8237305B2 (en) | Auxiliary electrical power system for vehicular fuel economy improvement | |
| CN113799610A (en) | Vehicle redundancy control method and device and vehicle | |
| CN113733911A (en) | Power supply protection device for preventing auxiliary storage battery of pure electric vehicle from over-discharging | |
| CN114024363A (en) | Double-power-supply system based on electric automobile and control method thereof | |
| CN116316993B (en) | Protection device for preventing storage battery from being deficient in power, control method and early warning method | |
| CN114161931A (en) | New energy vehicle type storage battery electricity supplementing control method | |
| CN216231794U (en) | 24-hour monitoring system for power battery for new energy bus | |
| CN112208381B (en) | New energy automobile charging system control circuit and control method | |
| CN114726022A (en) | Lithium battery circuit, device and method for simulating dry battery discharge | |
| CN207565348U (en) | Pure electric coach 24V battery lasts not power shortage system | |
| CN111431230B (en) | Lithium battery power supply system | |
| CN210149163U (en) | Power-on and power-off and control system of mobile charging vehicle charging system | |
| CN211000942U (en) | Low-voltage power supply management system for safety monitoring of power battery of electric automobile | |
| CN205004825U (en) | Storage battery is started to two remainings | |
| CN114142570A (en) | Storage battery management method and system and computer-readable storage medium | |
| CN204044327U (en) | A kind of application system of car battery intelligent sensor | |
| CN208369251U (en) | A kind of more battery parallel charge-discharge control devices of automobile | |
| CN113370919A (en) | Vehicle control method and device, vehicle and equipment | |
| CN105119152A (en) | Protection circuit of switch cabinet | |
| CN113488710B (en) | Self-locking control circuit for preventing over-discharge of storage battery of metro vehicle | |
| CN217902285U (en) | Power-off control circuit and energy vehicle |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |