CN113734078A - Emergency starting system and control method for special cross-country vehicle - Google Patents
Emergency starting system and control method for special cross-country vehicle Download PDFInfo
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- CN113734078A CN113734078A CN202111083971.3A CN202111083971A CN113734078A CN 113734078 A CN113734078 A CN 113734078A CN 202111083971 A CN202111083971 A CN 202111083971A CN 113734078 A CN113734078 A CN 113734078A
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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
- B60R16/033—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 characterised by the use of electrical cells or batteries
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- 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
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Abstract
The invention discloses an emergency starting system of a special off-road vehicle, which comprises a vehicle-mounted storage battery, a super capacitor and an emergency power supply, wherein the vehicle-mounted storage battery and the super capacitor are connected in parallel, the emergency power supply is detachably connected, and the super capacitor and the emergency power supply are both electrically connected with an oil way degassing system, an in-cylinder preheating system and an air inlet preheating system; the invention also discloses a control method of the emergency starting system of the special off-road vehicle, after the vehicle is electrified, the emergency power supply and/or the super capacitor are controlled to supply power to the starting power supply loop, the oil path degassing system, the cylinder preheating system and the air inlet preheating system are sequentially started, and after the oil path degassing, the cylinder preheating and the air inlet preheating are completed, a driver is prompted to start the engine. The invention can realize quick start in an ultralow temperature environment.
Description
Technical Field
The invention relates to the technical field of automobile starting, in particular to an emergency starting system and a control method for a special off-road vehicle.
Background
At present, most of special off-road vehicles in China are diesel vehicles, and the quick start requirement of-41 ℃ is provided according to the domestic low-temperature distribution characteristics, but the cold start requirement can be met only by adopting a preheating process of about half an hour due to the limitation to the domestic technical current situation. And as the technology of wheeled combat vehicles and armored vehicles seeps, even more so-43 ℃ is mentioned for low temperature requirements, how to reduce start preparation time in a battlefield environment will be critical in determining tactical countermeasures and battle victory.
The existing cold starting mode is mainly fuel liquid heating, not only is an extra heavy fuel liquid heating system required to be added, but also the engine water path can be preheated after the fuel liquid heating system is heated for 20-30 minutes, so that the starting preparation condition is achieved, and the rapid response capability of a vehicle is greatly limited during military operation.
Secondly, the existing preheating system not only needs a water channel for heating, but also needs a large-capacity low-temperature vehicle-mounted storage battery, after the vehicle is started, the capacity of the vehicle-mounted storage battery is redundant, the vehicle is not light, and the vehicle-mounted storage battery is basically fatally damaged after being discharged by large current for many times.
Thirdly, when a portable starting power supply is adopted, the power supply clamp can be only used for clamping the pile heads of the vehicle-mounted storage battery, the pile heads of the anode and the cathode of the vehicle-mounted storage battery are close, the short circuit ignition phenomenon is easily caused, and the vehicle-mounted storage battery can be fatally damaged or even generate fire.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an emergency starting system and a control method for a special off-road vehicle, and the system and the method can realize ultralow-temperature rapid emergency starting.
In order to achieve the purpose, the invention provides an emergency starting system of a special off-road vehicle, which comprises a vehicle-mounted storage battery and a super capacitor which are connected in parallel, and further comprises an emergency power supply which is detachably connected with a starting power supply loop, wherein the super capacitor and the emergency power supply are electrically connected with an oil way degassing system, an in-cylinder preheating system and an air inlet preheating system, and further comprises an emergency starting controller which is detachably connected with a CAN bus;
the emergency starting controller is used for controlling an emergency power supply and/or a super capacitor to supply power to the starting power supply loop and controlling the opening and closing of the oil line degassing system, the in-cylinder preheating system and the air inlet preheating system.
Furthermore, the emergency starting controller is also used for controlling the emergency power supply and the super capacitor to supply power to the starting power supply loop after the vehicle is detected to be powered on, sequentially starting the oil path degassing system, the in-cylinder preheating system and the air inlet preheating system, and prompting a driver to start the engine after the oil path degassing, the in-cylinder preheating and the air inlet preheating are detected to be completed.
Further, still include the capacitor control ware all connected with super capacitor and emergency starting control ware, the capacitor control ware is used for when receiving the instruction of charging, breaks off on-vehicle battery and super capacitor's being connected to charge for super capacitor, still be used for when receiving emergency starting instruction, insert the starting power supply circuit with super capacitor.
Further, oil circuit degasification system includes the fuel tank, the fuel tank oil-out is parallelly connected the one end of electronic deaeration pump and check valve, electronic deaeration pump with the other end of check valve is established ties and is had oil water separation coarse filtration ware, low-pressure pump, oil water separation secondary filter, high-pressure pump, oil spout common rail pipe and fuel sprayer.
Further, the in-cylinder preheating system comprises an in-cylinder preheating heater arranged in the cylinder wall and an in-cylinder preheating indicator lamp connected with the in-cylinder preheating heater in series.
Further, the intake air preheating system comprises an intake air preheating heater arranged in the intake passage and an intake air preheating indicator lamp connected with the intake air preheating heater in series.
The invention also provides a control method based on the emergency starting system of the special off-road vehicle, after the vehicle is powered on, the super capacitor is charged fully, then the emergency power supply and the super capacitor are controlled to supply power to the starting power supply loop, the oil line degassing system, the in-cylinder preheating system and the air inlet preheating system are sequentially started, and after the oil line degassing, the in-cylinder preheating and the air inlet preheating are finished, a driver is prompted to start the engine.
Further, the super capacitor intermittently supplies power to the starting power supply loop.
Further, the power supply process of the super capacitor comprises a first power supply stage, a first stop stage, a second power supply stage, a second stop stage and a third power supply stage which are sequentially continuous.
Further, oil way degassing is completed when the first stop phase is finished, and cylinder preheating is completed when the second stop phase is finished.
Further, the preheating system in the cylinder is started after the oil way is degassed, and the air inlet preheating system is started after the preheating in the cylinder is completed.
And further, after the starting of the engine is finished, the emergency power supply and the vehicle-mounted storage battery are controlled to be connected in parallel for supplying power.
The invention has the beneficial effects that: and the quick start is realized in an ultralow temperature environment. When the cold start is carried out in an ultralow temperature environment, the external emergency start controller controls the emergency power supply and the super capacitor to simultaneously supply power to the oil line degassing system, the in-cylinder preheating system and the air inlet preheating system, so that oil line degassing, in-cylinder preheating and air inlet preheating are sequentially completed, the temperature and the combustion efficiency of the air cylinder are greatly improved, and the start time of the engine is shortened; in addition, because the super capacitor mainly provides instantaneous high-power discharge, the super capacitor adopts intermittent power supply, so that the discharge time of the super capacitor can be prolonged and the whole starting time can be supported, and the starting time of the engine is further shortened.
Drawings
Fig. 1 is a schematic structural diagram of an emergency starting system according to the present invention.
FIG. 2 is a schematic structural diagram of an oil degassing system.
FIG. 3 is a flow chart of the control method of the present invention.
The components in the figures are numbered as follows: the system comprises an emergency starting controller 100, an emergency power supply 200, a vehicle-mounted storage battery 300, a super capacitor 400, a capacitor controller 500, an oil-way degassing system 600, a fuel tank 601, an electric degassing pump 602, a one-way valve 603, an oil-water separation coarse filter 604, a low-pressure pump 605, an oil-water separation fine filter 606, a high-pressure pump 607, an oil injection common rail pipe 608, an oil injection nozzle 609, an oil return pressure regulating valve 610, an in-cylinder preheating system 700, an air inlet preheating system 800 and a starter 900.
Detailed Description
The following detailed description is provided to further explain the claimed embodiments of the present invention in order to make it clear for those skilled in the art to understand the claims. The scope of the invention is not limited to the following specific examples. It is intended that the scope of the invention be determined by those skilled in the art from the following detailed description, which includes claims that are directed to this invention.
As shown in fig. 1, the emergency starting system for the special off-road vehicle comprises a starting power supply loop, wherein a starter, a vehicle-mounted storage battery 300, a super capacitor 400, an oil line degassing system 600, an in-cylinder preheating system 700 and an air inlet preheating system 800 are connected in the starting power supply loop, an emergency power supply 200 is connected to the starting power supply loop through a vehicle auxiliary starting socket, and the vehicle-mounted storage battery 300 and the super capacitor 400 are connected in parallel. The emergency power supply 200 is connected to the starting power supply loop only when the vehicle-mounted storage battery is fed or the emergency starting is carried out at low temperature, and the emergency power supply is convenient to disassemble.
The emergency starting system further comprises an emergency starting controller 100 connected with the CAN bus through an external OBD interface, acquires and sends vehicle control signals through the CAN bus, and a capacitor controller 500 in communication connection with the super capacitor 400 and the emergency starting controller 100. The emergency starting controller 100 is connected to the CAN bus only when the vehicle-mounted storage battery is fed or the emergency starting is carried out at low temperature, and the emergency starting controller is convenient to disassemble.
The emergency starting controller 100 is used for controlling the emergency power supply 200 and/or the super capacitor 400 to supply power to the starting power supply loop and controlling the oil line degassing system 600, the in-cylinder preheating system 700 and the air inlet preheating system 800 to be opened and closed.
The capacitor controller 500 is configured to disconnect the vehicle-mounted storage battery 300 from the super capacitor 400 when receiving a charging instruction sent by the vehicle control unit, charge the super capacitor 400 through a DC/DC module built in the capacitor controller 500, and connect the super capacitor 400 into a starting power supply circuit when receiving an emergency starting instruction sent by the emergency starting controller 100.
As a preferred embodiment, the emergency start controller 100 is further configured to, after detecting that the vehicle is powered on, control the emergency power supply 200 and the super capacitor 400 to supply power to the start power supply loop, sequentially start the oil line degassing system 600, the in-cylinder preheating system 700, and the intake preheating system 800, and prompt the driver to start the engine after detecting that oil line degassing, in-cylinder preheating, and intake preheating are completed.
As a preferred embodiment, the oil line degassing system 600 includes a fuel tank 601, an oil outlet of the fuel tank is connected in parallel with one end of an electric degassing pump 602 and one end of a one-way valve 603, the other end of the electric degassing pump 602 and the other end of the one-way valve 603 are connected in series with an oil-water separation coarse filter 604, a low-pressure pump 605, an oil-water separation fine filter 606, a high-pressure pump 607, an oil injection common rail pipe 608 and an oil injection nozzle 609, the oil injection common rail pipe is further connected to an inlet of the fuel tank through an oil return pipeline, and an oil return pressure regulating valve 610 is connected in series on the oil return pipeline. When the oil way degassing system is started, the fuel oil sequentially carries out coarse filtration and fine filtration through the electric degassing pump, air in the fuel oil is filtered, and finally the fuel oil enters the oil injection common rail pipe and the oil injection pipe; when the oil degassing system is closed, the fuel in the system cannot flow back to the outlet of the fuel tank from the check valve. Because the vehicle is placed in an extremely low temperature environment for a long time, the interface of each connecting part in the fuel pipeline can cause a tiny gap due to expansion with heat and contraction with cold, so that air is mixed in the fuel pipeline, the air-fuel ratio of the air-containing fuel can be increased when the fuel is injected into a cylinder for combustion, so that the combustion efficiency is reduced, and the engine is difficult to start, so that the combustion efficiency of the cylinder can be improved by removing the fuel through an oil way degassing system before the fuel injection, and the quick start of the engine is facilitated.
As a preferred embodiment, the in-cylinder preheating system 700 includes an in-cylinder preheating heater disposed in the cylinder wall and an in-cylinder preheating indicator light in series with the in-cylinder preheating heater. When opening the interior preheating system of jar, the jar is interior preheating indicator light bright, and the jar is interior preheating heater heats for the cylinder wall, improvement cylinder temperature that can be quick and ambient temperature when the ignition burns to improve the combustion efficiency of fuel in the cylinder, thereby shorten the start-up time.
As a preferred embodiment, the intake air preheating system 800 includes an intake air preheating heater provided in the intake passage and an intake air preheating indicator lamp connected in series with the intake air preheating heater. When opening the system of preheating of admitting air, the pilot lamp of preheating of admitting air, the air that the heater carried out rapid heating for in the inlet channel is preheated in the inlet, because the air is less than the fuel far than the specific heat capacity, therefore it will be fast to preheat than the fuel in the preheating of admitting air, improves combustion efficiency more fast to shorten the start-up time.
As shown in fig. 2, the control process of the emergency starting system of the special off-road vehicle is as follows:
after the vehicle is placed in an extremely low temperature environment for a period of time, the vehicle-mounted storage battery faces the risk of feeding, and the service life of the vehicle in the storage battery is greatly damaged by starting the engine by the vehicle in the storage battery in the extremely low temperature environment, so that firstly, the emergency power supply is connected to a starting power supply loop through a vehicle auxiliary starting socket, and the emergency starting controller 100 is connected to a CAN bus through an external OBD interface.
After a vehicle is powered on, firstly, the emergency starting controller 100 controls the emergency power supply 200 or the vehicle-mounted storage battery to fully charge the super capacitor 400, then the emergency starting controller 100 controls the emergency power supply 200 and the super capacitor 400 to supply power to a starting power supply loop, firstly, the oil path degassing system 600 is started, after 2min, oil path degassing is considered to be completed, then, the in-cylinder preheating system 700 is started, after 2min, the cylinder temperature is considered to reach the target temperature, in-cylinder preheating is completed, then, the air inlet preheating system 800 is started, after 1min, the air inlet temperature is considered to reach the target temperature, air inlet preheating is completed, and at the moment, the emergency starting controller 100 sends out a buzzer to prompt a driver to start the engine.
As a preferred embodiment, the super capacitor 400 intermittently supplies power to the starting power supply loop in the whole starting process, the super capacitor discharges under a full-charge state, the rated voltage is 32V, after discharging for 1min, the connection between the super capacitor and the starting power supply loop is disconnected through the capacitor controller and lasts for 1min, at this time, oil line degassing is just completed, the super capacitor discharges first and then stops in the oil line degassing process, because the degassing just starts with high power, and after a part of gas in the oil line is removed, high power is not needed, so that the super capacitor can stop discharging to reserve electric quantity; then switching on and discharging for 1min, then switching off for min again, completing in-cylinder preheating right now, and stopping the super capacitor after discharging first in-cylinder preheating process, because the high power is needed to quickly heat up the low-temperature cylinder body when in-cylinder preheating is just started, and the high power is not needed after the temperature of the cylinder body is raised to a certain degree, so that the super capacitor can stop discharging to keep electric quantity; and finally, switching on and discharging again until the engine is started, wherein the super capacitor is uniformly discharged in the air inlet preheating process, the engine is started immediately after the air inlet preheating is finished, and in order to ensure that the super capacitor is in a discharging state when the engine is started, the air inlet preheating of the super capacitor needs to be ensured to be continuously discharged in the process from the air inlet preheating to the engine starting completion. In each discharging process, the discharging voltage and power of the super capacitor are continuously reduced; therefore, if the super capacitor is continuously discharged, large-voltage and large-power discharge can be continuously performed at the beginning, the discharge time is short, and when oil way degassing, cylinder preheating and air inlet preheating are completed quickly, the discharge voltage and power of the super capacitor cannot support the engine starting.
Claims (10)
1. The utility model provides an emergent start-up system of special cross country vehicle which characterized in that: the system comprises a vehicle-mounted storage battery (300) and a super capacitor (400) which are connected in parallel, and further comprises an emergency power supply (200) which is detachably connected with a starting power supply loop, wherein the super capacitor (400) and the emergency power supply (200) are electrically connected with an oil line degassing system (600), an in-cylinder preheating system (700) and an air inlet preheating system (800) through the starting power supply loop, and further comprises an emergency starting controller (100) which is detachably connected with a CAN bus;
the emergency starting controller (100) is used for controlling an emergency power supply (200) and/or a super capacitor (400) to supply power to a starting power supply loop and controlling the opening and closing of an oil way degassing system (600), an in-cylinder preheating system (700) and an air inlet preheating system (800).
2. The emergency starting system for a special off-road vehicle as claimed in claim 1, wherein: the emergency starting controller (100) is further used for controlling an emergency power supply (200) and a super capacitor (400) to supply power to a starting power supply loop after the vehicle is detected to be powered on, sequentially starting an oil line degassing system (600), an in-cylinder preheating system (700) and an air inlet preheating system (800), and prompting a driver to start the engine after oil line degassing, in-cylinder preheating and air inlet preheating are detected to be completed.
3. The emergency starting system for a special off-road vehicle as claimed in claim 1, wherein: the vehicle-mounted battery charger is characterized by further comprising a capacitor controller (500) which is connected with the super capacitor (400) and the emergency starting controller (100), wherein the capacitor controller (500) is used for disconnecting the connection between the vehicle-mounted storage battery (300) and the super capacitor (400) when receiving a charging instruction, charging the super capacitor (400), and connecting the super capacitor (400) into the starting power supply loop when receiving an emergency starting instruction.
4. The emergency starting system for a special off-road vehicle as claimed in claim 1, wherein: the oil way degassing system (600) comprises a fuel tank (601), the oil outlet of the fuel tank is connected with one end of an electric degassing pump (602) and a one-way valve (603) in parallel, and the electric degassing pump (602) and the other end of the one-way valve (603) are connected with an oil-water separation coarse filter (604), a low-pressure pump (605), an oil-water separation fine filter (606), a high-pressure pump (607), an oil injection common rail pipe (608) and an oil injection nozzle (609) in series.
5. The emergency starting system for a special off-road vehicle as claimed in claim 1, wherein: the in-cylinder preheating system (700) comprises an in-cylinder preheating heater arranged in the cylinder wall and an in-cylinder preheating indicator lamp connected with the in-cylinder preheating heater in series; the intake air preheating system (800) comprises an intake air preheating heater arranged in the intake passage and an intake air preheating indicator lamp connected with the intake air preheating heater in series.
6. A control method of the special off-road vehicle emergency starting system based on any one of claims 1 to 5 is characterized in that: after a vehicle is powered on, when an emergency starting condition is met, the super capacitor (400) is charged fully, then the emergency power supply (200) and the super capacitor (400) are controlled to supply power to a starting power supply loop, the oil line degassing system (600), the in-cylinder preheating system (700) and the air inlet preheating system (800) are sequentially started, and after oil line degassing, in-cylinder preheating and air inlet preheating are completed, a driver is prompted to start an engine.
7. The control method of the emergency starting system of the special off-road vehicle as claimed in claim 6, wherein: the super capacitor intermittently supplies power to the starting power supply loop.
8. The control method of the emergency starting system of the special off-road vehicle as claimed in claim 7, wherein: the power supply process of the super capacitor comprises a first power supply stage, a first stop stage, a second power supply stage, a second stop stage and a third power supply stage which are sequentially continuous.
9. The control method of the emergency starting system of the special off-road vehicle as claimed in claim 8, wherein: and finishing oil way degassing when the first stop stage is finished, and finishing in-cylinder preheating when the second stop stage is finished.
10. The control method of the emergency starting system of the special off-road vehicle as claimed in claim 6, wherein: and starting the preheating system (700) in the cylinder after the oil way is degassed, and starting the air inlet preheating system (800) after the preheating in the cylinder is completed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111083971.3A CN113734078B (en) | 2021-09-14 | 2021-09-14 | Emergency starting system and control method for special off-road vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111083971.3A CN113734078B (en) | 2021-09-14 | 2021-09-14 | Emergency starting system and control method for special off-road vehicle |
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| CN113734078A true CN113734078A (en) | 2021-12-03 |
| CN113734078B CN113734078B (en) | 2023-07-18 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202250513U (en) * | 2011-08-29 | 2012-05-30 | 东风汽车有限公司 | Automatic exhaust fuel system |
| CN104553840A (en) * | 2013-10-17 | 2015-04-29 | 雷星亮 | Automobile emergency startup power source and automobile emergency startup method |
| CN106468236A (en) * | 2015-08-20 | 2017-03-01 | 义乌正隆新能源科技有限公司 | High-power diesel engine low temperature quick one-key start system and startup method automatically |
| CN208623377U (en) * | 2018-07-31 | 2019-03-19 | 佛山市昂卓电器科技有限公司 | Emergency vehicle startup power supply |
| EP3760490A1 (en) * | 2019-07-02 | 2021-01-06 | Renault S.A.S. | Electrical circuit and motor vehicle comprising such a circuit |
| CN212890208U (en) * | 2020-08-26 | 2021-04-06 | 江苏华宁电子系统工程有限公司 | Vehicle-mounted standby starting power supply system based on super capacitor |
-
2021
- 2021-09-14 CN CN202111083971.3A patent/CN113734078B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202250513U (en) * | 2011-08-29 | 2012-05-30 | 东风汽车有限公司 | Automatic exhaust fuel system |
| CN104553840A (en) * | 2013-10-17 | 2015-04-29 | 雷星亮 | Automobile emergency startup power source and automobile emergency startup method |
| CN106468236A (en) * | 2015-08-20 | 2017-03-01 | 义乌正隆新能源科技有限公司 | High-power diesel engine low temperature quick one-key start system and startup method automatically |
| CN208623377U (en) * | 2018-07-31 | 2019-03-19 | 佛山市昂卓电器科技有限公司 | Emergency vehicle startup power supply |
| EP3760490A1 (en) * | 2019-07-02 | 2021-01-06 | Renault S.A.S. | Electrical circuit and motor vehicle comprising such a circuit |
| CN212890208U (en) * | 2020-08-26 | 2021-04-06 | 江苏华宁电子系统工程有限公司 | Vehicle-mounted standby starting power supply system based on super capacitor |
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| CN113734078B (en) | 2023-07-18 |
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