CN106364426A - Automobile starting and stopping protective system and method - Google Patents
Automobile starting and stopping protective system and method Download PDFInfo
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- CN106364426A CN106364426A CN201610873801.8A CN201610873801A CN106364426A CN 106364426 A CN106364426 A CN 106364426A CN 201610873801 A CN201610873801 A CN 201610873801A CN 106364426 A CN106364426 A CN 106364426A
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- message
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- body controller
- accumulator
- car body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention relates to an automobile starting and stopping protective system and method. The automobile starting and stopping protective system comprises a storage battery, an electric quantity sensor and an automobile body controller which is connected with a CAN bus. The electric quantity sensor is arranged at the output end of the storage battery, is used for detecting the discharge current of the storage battery and is connected with the communication end of the automobile body controller through a LIN bus. When an ignition lock ON gear switch is disconnected, the automobile body controller sends a network dormant message through the CAN bus, so that idle electronic equipment connected with the CAN bus enters the dormant state, and the automobile body controller enters the dormant state after the discharge current of the storage battery is smaller than a first threshold value. After the automobile body controller enters the dormant state, if the discharge current of the storage battery is larger than a second threshold value, constant electricity output by the storage battery is controlled to be disconnected in the set time, and a forced outage message and a failure warning message are sent through the CAN bus. Through the automobile starting and stopping protective system and method, the safety of an automobile can be improved, and the energy consumption of the automobile is reduced.
Description
Technical field
The present invention relates to technical field of automotive electronics, more particularly, to a kind of automobile start and stop protection system and method.
Background technology
The electrical arrangement more and more higher of automobile, leads to the increase of quiescent current after car load standing, due to the increasing of electrical arrangement
Plus, because some abnormal signals lead to the abnormal probability of car load Electro-Static Discharge also can increase, if put to these ANOMALOUS VARIATIONS
Electricity output electric current does not control, then may result in car load power shortage, thus affecting the starting of engine.Put out in car load simultaneously
When fiery, some systems must complete certain function and could enter resting state, and such as, the carbamide in engine aftertreatment system sprays
Penetrate, due to needing urea pipe is carried out empty with a period of time that still will work after car load stops working, if directly cut off the electricity supply
Then may result in carbamide management and thoroughly emptying can not can lead to urea crystals, but can not be energized for a long time again.Also have
System remains able to constantly keep work, such as door-locking system etc. after being maintained at car load locking again.How effective control car load
Dormancy problem after automobile flameout for the electronic equipment, it is to avoid car load occur power shortage make automobile cannot normal starting problem, to minimizing
The energy resource consumption of automobile has important meaning view.
Content of the invention
The present invention provides a kind of automobile start and stop protection system and method, solves electronic equipment after automobile is closed down and occurs extremely
Situation, the problem being easily caused car load power shortage and cannot starting.Improve the safety of automobile, and reduce the energy resource consumption of automobile.
For realizing object above, present invention offer technical scheme below:
A kind of automobile start and stop protection system, comprising: accumulator, electrical quantity sensor and the Body Control being connected with can bus
Device；
Described electrical quantity sensor is arranged on described accumulator output end, for detecting the discharge current of described accumulator, and
It is connected with the communication terminal of described car body controller by lin bus；
When ignition lock on gear switch disconnects, described car body controller sends net dormancy message by can bus, so that
The free electronic equipment being connected with can bus enters resting state, and described car body controller is in the electric discharge electricity of described accumulator
Stream, less than after first threshold, enters itself resting state；
After described car body controller enters itself resting state, if the discharge current of described accumulator is more than the second threshold
Value, then control accumulator output often electricity disconnect in setting time, and by can bus send force power-off message and
Fault alarm message.
Preferably, also include: instrument controller, drive recorder and the engine controller being connected with can bus；
Described instrument controller, described drive recorder and described engine controller are receiving described net dormancy report
Wen Hou, judges whether post processing work completes, if it is, after can bus sends itself dormancy message, entering itself and stop
Dormancy state, until receiving WOL message, otherwise passes through can bus forward delay interval message；Described car body controller receives
After described time delay message, extend the normal electricity disconnecting accumulator output by setting time；
Described instrument controller, described drive recorder and described engine controller are receiving described pressure power-off report
Wen Hou, enters itself resting state.
Preferably, also include: relay and car load power supply unit；
The input of described relay is connected with the positive pole of described accumulator, the outfan of described relay and described car load
The input of power supply unit is connected, and the coil-end of described relay is serially connected in the positive pole of described accumulator and described car body controller
The first outfan between；
When the first outfan of described car body controller is low level, described relay connects the positive pole of described accumulator
Electrical connection with the input of described car load power supply unit；
When the discharge current of described accumulator is more than Second Threshold, the first outfan of described car body controller is setting
Output high level in time, so that the often electrically disconnected connection of accumulator output.
Preferably, described car body controller is additionally operable to, when ignition lock on gear switch connects, calculate the surplus of described accumulator
Remaining electricity, and judge whether described dump energy starts required power threshold more than car load, if it is less, total by can
Line sends electric quantity of power supply warning message；
After described instrument controller receives described electric quantity of power supply warning message, control display instrument display alarm.
Preferably, also include door lock module；
Described car body controller, when described door lock module controls car door unblock or locks, controls Lamp for indicating change of drive direction flicker one
Secondary.
Preferably, described door lock module includes: door-lock motor, position induction device, wireless communication module and Car's door controlling
Device；
The outfan of described position induction device is connected with the first input end of described Car's door controlling device, described wireless telecommunications
The outfan of module is connected with the second input of described Car's door controlling device, the control end of described door-lock motor and described car door control
The outfan of device processed is connected；
Described position induction device, for detecting the position of remote-control key；
Described wireless communication module, for receiving unblock or upper lock signal；
Described Car's door controlling device, according to described unblock or upper lock signal, controls the unblock of door-lock motor or locks；
Described Car's door controlling device is also connected with can bus, after receiving described electric quantity of power supply warning message, described car door
Controller controls described door-lock motor to be in released state.
Preferably, described Second Threshold is more than described first threshold, and described first threshold is 3ma, and described Second Threshold is
100ma.
The present invention also provides a kind of automobile start and stop guard method, comprises the following steps:
Car body controller obtains the discharge current of accumulator in real time；
Car body controller, when ignition lock on gear switch disconnects, sends net dormancy message and judges that described discharge current is
No less than first threshold, if it is, entering itself resting state；
In itself resting state described, if described discharge current is more than Second Threshold, car body controller controls storage
The often electricity of battery output disconnects in setting time, and sends pressure power-off message and fault alarm report by can bus
Literary composition.
Preferably, methods described also includes:
The electronic equipment being connected with can bus, after receiving described net dormancy message, judges that post processing work is
No complete, if it is, after can bus sends itself dormancy message, entering itself resting state until receiving network
Wake up message, otherwise pass through can bus forward delay interval message；Described electronic equipment receive described pressure power-off message after,
Enter itself resting state；
After described car body controller receives described time delay message, extend by setting time and disconnect the normal of accumulator output
Electricity.
Preferably, described electronic equipment includes: instrument controller, drive recorder and engine controller.
The present invention provides a kind of automobile start and stop protection system and method, by detecting to the discharge current of accumulator,
After automobile is closed down, when electronic equipment is if there is abnormal conditions, storage battery power supply can be cut off in time, it is to avoid car load occurs and loses
Electricity and the problem that cannot start, improve the safety of automobile, and reduce the energy resource consumption of automobile.
Brief description
In order to be illustrated more clearly that the specific embodiment of the present invention, below by the accompanying drawing work to use required in embodiment
Simply introduce.
Fig. 1: be a kind of automobile start and stop protection system schematic diagram that the present invention provides；
Fig. 2: be a kind of automobile start and stop protection schematic flow sheet that the present invention provides.
Reference
1 electrical quantity sensor
2 accumulator
3 car body controllers
K1 car key insertion switch
K2 ignition lock on gear switch
R1 relay
Specific embodiment
In order that those skilled in the art more fully understand the scheme of the embodiment of the present invention, below in conjunction with the accompanying drawings and implement
Mode is described in further detail to the embodiment of the present invention.
After closing down for current automobile, if abnormal conditions in finished vehicle electronic equipment, asking of car load power shortage easily occurs
Topic, the present invention provides a kind of automobile to close down protection system, by detecting to the discharge current of accumulator, closes down in automobile
Afterwards, electronic equipment if there is abnormal when, storage battery power supply can be cut off in time, and message be sent by can bus, so that electric
Sub- equipment disconnects electrical connection, it is to avoid problem car load power shortage and cannot starting, and improves the safety of automobile, and reduces automobile
Energy resource consumption.
As shown in figure 1, a kind of automobile start and stop protection system schematic diagram providing for the present invention.This system includes: accumulator
2nd, electrical quantity sensor 1 and the car body controller 3 being connected with can bus.Electrical quantity sensor 1 is arranged on accumulator 2 outfan, is used for
The discharge current of detection accumulator 2, and be connected with the communication terminal of car body controller 3 by lin bus.In ignition lock on gear switch
When k2 disconnects, car body controller 3 sends net dormancy message by can bus, so that the free electronic being connected with can bus is set
Standby entrance resting state, and car body controller 3, after the discharge current of accumulator 2 is less than first threshold, enters itself dormancy shape
State.After car body controller 3 enters itself resting state, if the discharge current of accumulator 2 is more than Second Threshold, controls and store
The often electricity of battery output disconnects in setting time, and sends pressure power-off message and fault alarm report by can bus
Literary composition.
It should be noted that in order to avoid vehicle electronics because dormancy time is different, causing each in same bus
Electronic equipment needs entirety to meet dormancy condition could to enter dormancy situation.Separately carried out using network dormancy and itself dormancy
Formula side, in the case of making certain equipment in bus can not meet local dormancy, can send sleep request by bus, make total
Other electronic equipments on line can first carry out dormancy.
Further, this system includes: instrument controller, drive recorder and the engine controller being connected with can bus.
Described instrument controller, described drive recorder and described engine controller, after receiving described net dormancy message, are sentenced
Whether process work of having no progeny completes, if it is, after can bus sends itself dormancy message, entering itself resting state
Until receiving WOL message, otherwise pass through can bus forward delay interval message；Described car body controller prolongs described in receiving
When message after, by setting time extend disconnect accumulator output normal electricity.Described instrument controller, described drive recorder and institute
State engine controller after receiving described pressure power-off message, enter itself resting state.
Specifically, as shown in Fig. 2 protecting schematic flow sheet for a kind of automobile start and stop that the present invention provides.By vehicle body control
Device processed judges to whether ignition lock on gear switch disconnects, and closes down if off then showing that automobile enters, now Body Control
Device sends net dormancy message, so that the other free electronic equipment in can bus can carry out dormancy in advance.And other electronics
After receiving net dormancy message, whether the post processing work to itself completes to judge equipment, if completed, enters
Itself dormancy, otherwise forward delay interval message.After car body controller receives time delay message, electric power storage is disconnected according to setting time time delay
The normal electricity of pond output, makes the electronic equipment of forward delay interval message have time enough to carry out post processing work.
Further, this system also includes: relay r1 and car load power supply unit.The input of relay r1 and accumulator
2 positive pole is connected, and the outfan of relay r1 is connected with the input of described car load power supply unit, the coil-end string of relay r1
It is connected between the positive pole of accumulator 2 and the first outfan of car body controller 3.It is low in the first outfan of car body controller 3
During level, relay r1 connects the electrical connection of the positive pole of accumulator 2 and the input of described car load power supply unit.In accumulator 2
Discharge current be more than Second Threshold when, the first outfan of car body controller 3 export high level in setting time so that storage
The often electrically disconnected connection of battery output.
In actual applications, as shown in figure 1, the p3 pin of car body controller 3 is connected with key insertion switch k1, p4 pin
It is connected with ignition lock on gear switch k2, p2 pin is connected with the coil-end of relay, the outfan of p8 pin and electrical quantity sensor 1
It is connected.When p2 pin is low level, relay r1 closes, the energising of conducting accumulator 2 and car load power supply unit.
Described car body controller is additionally operable to calculate the dump energy of described accumulator when ignition lock on gear switch connects,
And judge whether described dump energy starts required power threshold more than car load, if it is less, electricity is sent by can bus
Source electricity warning message.After described instrument controller receives described electric quantity of power supply warning message, control display instrument display report
Alert.
If it should be noted that the dump energy of accumulator is not enough to car load being again started up, can determine whether that accumulator occurs
Fault, needs to be changed in time or keep in repair, it is to avoid cause vehicle cannot start.
Further, including door lock module, described car body controller controls car door unblock or when locking in described door lock module,
Lamp for indicating change of drive direction is controlled to flash once.
In actual applications, car body controller receive unblock or on lock signal when, often control car light flicker and loudspeaker
Pipe once, so that driver is reminded.
Further, described door lock module includes: door-lock motor, position induction device, wireless communication module and car door control
Device processed.The outfan of described position induction device is connected with the first input end of described Car's door controlling device, described wireless telecommunications mould
The outfan of block is connected with the second input of described Car's door controlling device, the control end of described door-lock motor and described Car's door controlling
The outfan of device is connected.Described position induction device, for detecting the position of remote-control key.Described wireless communication module, is used for
Receive unblock or upper lock signal.Described Car's door controlling device according to described unblock or upper lock signal, control door-lock motor unblock or
Lock.Described Car's door controlling device is also connected with can bus, after receiving described electric quantity of power supply warning message, described car door control
Device processed controls described door-lock motor to be in released state.
Further, described Second Threshold is more than described first threshold, and described first threshold is 3ma, described Second Threshold
For 100ma.In actual applications, each producer sets to the current value of electronic equipment dormancy and work often has difference, but, if
First threshold set too small so that electronic equipment dormancy control is not inconsistent with practical situation, similarly, Second Threshold setting nor
Excessive.It should be noted that first threshold and Second Threshold can be obtained by actual test.
It can be seen that, the present invention provides a kind of automobile start and stop protection system, by detecting to the discharge current of accumulator,
After automobile is closed down, when electronic equipment is if there is abnormal conditions, storage battery power supply can be cut off in time, it is to avoid car load power shortage occurs
And the problem that cannot start, improve the safety of automobile, and reduce the energy resource consumption of automobile.
The present invention also provides a kind of automobile start and stop guard method, comprises the following steps:
Step 1: car body controller obtains the discharge current of accumulator in real time；
Step 2: car body controller, when ignition lock on gear switch disconnects, sends net dormancy message and judges described electric discharge
Whether electric current is less than first threshold, if it is, entering itself resting state；
Step 3: in itself resting state described, if described discharge current is more than Second Threshold, car body controller
The often electricity controlling accumulator output disconnects in setting time, and forces power-off message and fault by the transmission of can bus
Warning message.
Further, the method is further comprising the steps of:
Step 4: the electronic equipment being connected with can bus, after receiving described net dormancy message, judges post processing
Whether work completes, if it is, after can bus sends itself dormancy message, entering itself resting state until receiving
To WOL message, otherwise pass through can bus forward delay interval message；
Step 5: described electronic equipment, after receiving described pressure power-off message, enters itself resting state；
Step 6: after described car body controller receives described time delay message, extend by setting time and disconnect accumulator output
Normal electricity.
Further, described electronic equipment includes: instrument controller, drive recorder and engine controller.
It can be seen that, the present invention provides a kind of automobile start and stop guard method, by detecting to the discharge current of accumulator,
After automobile is closed down, when electronic equipment is if there is abnormal conditions, storage battery power supply can be cut off in time, it is to avoid car load power shortage occurs
And the problem that cannot start, improve the safety of automobile, and reduce the energy resource consumption of automobile.
Construction, feature and the action effect of the present invention, above institute are described in detail above according to diagrammatically shown embodiment
State only presently preferred embodiments of the present invention, but the present invention is not to limit practical range, every structure according to the present invention shown in drawing
Want made change, or be revised as the Equivalent embodiments of equivalent variations, when still covered with diagram without departing from description spiritual,
All should be within the scope of the present invention.
Claims (10)
1. a kind of automobile start and stop protection system is it is characterised in that include: accumulator, electrical quantity sensor and be connected with can bus
Car body controller；
Described electrical quantity sensor is arranged on described accumulator output end, for detecting the discharge current of described accumulator, and passes through
Lin bus is connected with the communication terminal of described car body controller；
When ignition lock on gear switch disconnects, described car body controller sends net dormancy message by can bus, so that with
The free electronic equipment that can bus is connected enters resting state, and described car body controller is in the discharge current of described accumulator
After first threshold, enter itself resting state；
After described car body controller enters itself resting state, if the discharge current of described accumulator is more than Second Threshold,
The often electricity controlling accumulator output disconnects in setting time, and forces power-off message and fault by the transmission of can bus
Warning message.
2. protection system according to claim 1 is it is characterised in that also include: the instrument being connected with can bus is controlled
Device, drive recorder and engine controller；
Described instrument controller, described drive recorder and described engine controller are receiving described net dormancy message
Afterwards, judge whether post processing work completes, if it is, after can bus sends itself dormancy message, entering itself dormancy
State, until receiving WOL message, otherwise passes through can bus forward delay interval message；Described car body controller receives institute
After stating time delay message, extend the normal electricity disconnecting accumulator output by setting time；
Described instrument controller, described drive recorder and described engine controller are receiving described pressure power-off message
Afterwards, enter itself resting state.
3. protection system according to claim 2 is it is characterised in that also include: relay and car load power supply unit；
The input of described relay is connected with the positive pole of described accumulator, the outfan of described relay and described car load distribution
The input of unit is connected, and the coil-end of described relay is serially connected in the of the positive pole of described accumulator and described car body controller
Between one outfan；
When the first outfan of described car body controller is low level, described relay connects positive pole and the institute of described accumulator
State the electrical connection of the input of car load power supply unit；
When the discharge current of described accumulator is more than Second Threshold, the first outfan of described car body controller is in setting time
Interior output high level, so that the often electrically disconnected connection of accumulator output.
4. protection system according to claim 3 is it is characterised in that described car body controller is additionally operable in ignition lock on shelves
When switching connection, calculate the dump energy of described accumulator, and judge whether described dump energy is more than needed for car load starts
Power threshold, if it is less, send electric quantity of power supply warning message by can bus；
After described instrument controller receives described electric quantity of power supply warning message, control display instrument display alarm.
5. protection system according to claim 4 is it is characterised in that also include door lock module；
Described car body controller, when described door lock module controls car door unblock or locks, controls Lamp for indicating change of drive direction to flash once.
6. protection system according to claim 5 is it is characterised in that described door lock module includes: door-lock motor, position sense
Answer device, wireless communication module and Car's door controlling device；
The outfan of described position induction device is connected with the first input end of described Car's door controlling device, described wireless communication module
Outfan be connected with the second input of described Car's door controlling device, the control end of described door-lock motor and described Car's door controlling device
Outfan be connected；
Described position induction device, for detecting the position of remote-control key；
Described wireless communication module, for receiving unblock or upper lock signal；
Described Car's door controlling device, according to described unblock or upper lock signal, controls the unblock of door-lock motor or locks；
Described Car's door controlling device is also connected with can bus, after receiving described electric quantity of power supply warning message, described Car's door controlling
Device controls described door-lock motor to be in released state.
7. the protection system according to any one of claim 1 to 6 is it is characterised in that described Second Threshold is more than described the
One threshold value, described first threshold is 3ma, and described Second Threshold is 100ma.
8. a kind of automobile start and stop guard method is it is characterised in that comprise the following steps:
Car body controller obtains the discharge current of accumulator in real time；
Car body controller, when ignition lock on gear switch disconnects, sends net dormancy message and judges whether described discharge current is little
In first threshold, if it is, entering itself resting state；
In itself resting state described, if described discharge current is more than Second Threshold, car body controller controls accumulator
The often electricity of output disconnects in setting time, and sends pressure power-off message and fault alarm message by can bus.
9. method according to claim 8 is it is characterised in that methods described also includes:
The electronic equipment being connected with can bus, after receiving described net dormancy message, judges whether post processing work is complete
Become, if it is, after can bus sends itself dormancy message, entering itself resting state until receiving WOL
Message, otherwise passes through can bus forward delay interval message；Described electronic equipment, after receiving described pressure power-off message, enters
Itself resting state；
After described car body controller receives described time delay message, extend the normal electricity disconnecting accumulator output by setting time.
10. method according to claim 9 is it is characterised in that described electronic equipment includes: instrument controller, driving note
Record instrument and engine controller.
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| CN201610873801.8A CN106364426B (en) | 2016-09-30 | 2016-09-30 | A kind of automobile start and stop protection system and method |
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| CN201610873801.8A CN106364426B (en) | 2016-09-30 | 2016-09-30 | A kind of automobile start and stop protection system and method |
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Cited By (17)
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| CN108154638A (en) * | 2018-01-31 | 2018-06-12 | 安徽江淮汽车集团股份有限公司 | A kind of automobile fire alarm system and method |
| CN109001524A (en) * | 2018-06-06 | 2018-12-14 | 北京长城华冠汽车技术开发有限公司 | A kind of vehicle quiescent current detection device and detection method |
| CN109116085A (en) * | 2018-08-09 | 2019-01-01 | 重庆长安汽车股份有限公司 | A kind of automobile quiescent current monitoring system and method |
| CN109515357A (en) * | 2018-12-18 | 2019-03-26 | 北奔重型汽车集团有限公司 | A kind of heavy truck electric control starting control system |
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| CN113406942A (en) * | 2020-03-16 | 2021-09-17 | 广州汽车集团股份有限公司 | Vehicle quiescent current control method, system and computer readable medium |
| CN113696840A (en) * | 2021-07-14 | 2021-11-26 | 江铃汽车股份有限公司 | Vehicle power distribution method and system and automobile |
| CN114202824A (en) * | 2021-11-05 | 2022-03-18 | 一汽奔腾轿车有限公司 | Method for monitoring external scene of vehicle in parking state |
| CN114771437A (en) * | 2022-04-28 | 2022-07-22 | 重庆长安汽车股份有限公司 | Automobile power management system and control and remote controller control method thereof |
| CN116316993A (en) * | 2023-03-28 | 2023-06-23 | 徐州徐工挖掘机械有限公司 | Protection device for preventing storage battery from being deficient in power, control method and early warning method |
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