CN111502882A - Heavy vehicle starting emergency power supply system of ED L C capacitor - Google Patents
Heavy vehicle starting emergency power supply system of ED L C capacitor Download PDFInfo
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- CN111502882A CN111502882A CN202010341822.1A CN202010341822A CN111502882A CN 111502882 A CN111502882 A CN 111502882A CN 202010341822 A CN202010341822 A CN 202010341822A CN 111502882 A CN111502882 A CN 111502882A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
- F02N11/0866—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery comprising several power sources, e.g. battery and capacitor or two batteries
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
Abstract
The invention discloses a heavy vehicle starting emergency power supply system of an ED L C capacitor, which particularly relates to the field of automobile low-temperature starting power supply systems and comprises a storage battery, wherein the storage battery supplies power to a starter of an engine through a discharging circuit, two ends of the storage battery are connected with an ED L C capacitor starting power supply device in parallel, the ED L C capacitor starting power supply device consists of an ED L C capacitor, a microcontroller, a relay, a sensor, a clock/pulse width modulation module and an automatic control switch and is integrated on a system circuit board, and the storage battery charges the ED L C capacitor through a boosting charging circuit.
Description
Technical Field
The embodiment of the invention relates to the field of automobile low-temperature starting power supply systems, in particular to a heavy vehicle starting emergency power supply system of an ED L C capacitor.
Background
Low temperature starting performance is one of the main properties of heavy-duty automobiles. When the vehicle is left for a long time at low temperature or in a power consumption state for a long time, the accumulator battery power supply cannot be started or the starting time is long. The system brings inconvenience to users, especially for military use, fire-fighting emergency and other vehicles, and even delays the time, resulting in immeasurable loss.
Due to the influence of geographical positions and natural conditions in northern, northwest and northeast regions of China, the climate conditions are quite severe, and the lowest temperature is even lower than-40 to-60 ℃. Under such environmental conditions, the starting performance of the automobile is excellent, and the normal operation of the automobile cannot be guaranteed.
At present, the main domestic methods for solving the problem of automobile starting in winter in severe cold areas comprise the following steps: the method comprises the steps of starting liquid filling, air inlet preheating, engine flame preheating, fuel heater heating, storage battery heating and heat preservation and the like. These methods can improve the cold start performance of the automobile to some extent. But the process is complicated, the consumed time is long, the manpower and the fuel are wasted, and potential safety hazards exist. Therefore, the method has important significance in deeply researching the starting condition of the heavy-duty automobile under the low-temperature condition, improving the starting performance of the heavy-duty automobile and ensuring the smooth starting and running of the heavy-duty automobile at the low temperature.
Analysis of the automobile low-temperature starting process: starting of an automobile means that the engine crankshaft starts to rotate under the action of an external force. Until the engine automatically goes to idle. For vehicle start-up, the worst case is a low temperature start-up. When the vehicle is in an extremely low temperature environment, the starting difficulty is mainly due to the following reasons:
a. the viscosity of the lubricating oil is increased, the fluidity is poor, so that the oil supply among the friction pairs is insufficient, semi-dry friction or dry friction is formed, the movement resistance among the friction pairs is increased, and the starting resistance moment is increased;
b. the viscosity and density of the fuel oil are increased, the fluidity is poor, the atomization is poor, and the ignition lag period is prolonged. Meanwhile, the temperature of air entering the air cylinder is low, and parts such as cooling liquid, an air cylinder sleeve, a piston and the like absorb more heat in the working process, so that the heat loss is increased, the temperature of mixed gas is reduced, and the combustion condition is severe;
c. the internal resistance and viscosity of the electrolyte of the storage battery are increased, the permeability to the polar plate is reduced, active substances in the inner layer of the polar plate cannot be fully utilized during discharging, the output capacity is greatly reduced, and the starter cannot drag the engine to reach the lowest starting rotating speed. The low-temperature start of the automobile originally requires a large starting power, but the output power of the battery at low temperature is greatly reduced.
In order to ensure proper starting of the vehicle, the vehicle power system must be able to provide sufficient energy to bring the engine to the minimum starting speed. At present, the main methods for starting automobiles at low temperature in China do not fundamentally solve the problem, and the energy of storage batteries is consumed by some methods.
Disclosure of Invention
Therefore, the embodiment of the invention provides an emergency power supply system for starting a heavy vehicle with an ED L C capacitor, which replaces partial energy of a storage battery and energy of a power supply system battery cell through an electronic control technology, and releases the partial energy and the energy at a proper time, so that the effective energy and the starting capability of an automobile power supply are improved, and the problems in the prior art are solved.
In order to achieve the aim, on the basis of analyzing the feeding starting process when a heavy-duty automobile is in a low-temperature state, and in combination with the discharge characteristics of a storage battery and a capacitor under the low-temperature condition, the embodiment of the invention provides the following technical scheme that the heavy-duty vehicle starting emergency power supply system of the ED L C capacitor comprises the storage battery, wherein the storage battery supplies power to a starter of an engine through a discharge circuit, and two ends of the storage battery are connected with an ED L C capacitor starting power supply device in parallel;
the ED L C capacitor starting power supply device consists of an ED L C capacitor, a microcontroller, a relay, a sensor, a clock/pulse width modulation module and an automatic control switch, and is integrated on a system circuit board;
the storage battery charges an ED L C capacitor through a boost charging circuit, an automatic control switch is arranged on the charging circuit and is controlled by a microcontroller, and the ED L C capacitor supplies power to a starter of an engine through a discharging circuit;
the microcontroller collects an ignition switch signal through a relay, the microcontroller collects an ambient temperature signal, a storage battery voltage signal and a capacitor voltage signal through a sensor, and the pulse width modulation module collects an engine rotating speed signal to obtain the number of pulses in unit time, so that the rotating speed of the engine is calculated and data is sent to the microcontroller; the output end of the microcontroller is connected with the boosting charging circuit and the discharging circuit;
the microcontroller integrates the external environment temperature, the engine speed and the starting time information, and determines the discharging time of the ED L C capacitor through a control algorithm.
Further, the electric vehicle further comprises a shell, the ED L C capacitor starting power supply device is installed on the vehicle, the ED L C capacitor starting power supply device comprises the shell, and the ED L C capacitor and the storage battery are fixed in the shell.
Further, the boost charging circuit includes a boost converter.
Further, the sensor comprises a temperature sensor, a storage battery voltage sensor and a capacitance voltage sensor, the temperature sensor, the storage battery voltage sensor and the capacitance voltage sensor are respectively used for collecting the ambient temperature, the storage battery voltage and the capacitance voltage, and the sensor is connected with the microcontroller through a high-precision converter and used for collecting signals.
Further, the microcontroller is a single chip microcomputer, and the single chip microcomputer comprises a RAM.8KB built-in memory of 512B, an illumination interface, a USB interface, a cigarette lighter interface and an automatic alarm.
Further, the microcontroller adopts a USB interface to output a control signal of the boosting circuit to the boosting charging circuit, and the control signal is used for controlling the storage battery to boost and charge the ED L C capacitor.
Further, the microcontroller outputs a capacitive energy output control signal to the battery and the ED L C capacitor through the USB interface, and the capacitive energy output control signal is used for controlling the battery and the ED L C capacitor to supply power to the starter of the engine.
Further, the microcontroller outputs an indicator light signal to the charging indicator light and the parallel indicator light through the lighting interface, and the charging indicator light and the parallel indicator light are integrated on the system circuit board.
The embodiment of the invention has the following advantages:
1. the system of the invention utilizes the characteristics of large capacitance capacity, long charging and discharging service life, short charging time, capability of providing very high discharging current, small internal resistance, wide normal working temperature range and the like, replaces partial energy of the storage battery and the energy of the battery core of the power supply system by an electronic control technology, releases the energy at proper time and improves the effective energy and the starting capability of the automobile power supply;
2. the discharging and control strategy of the ED L C capacitor is researched, the discharging time is controlled, the discharging time is released at the moment when the rotating speed of the engine needs to be increased most, the requirement of the engine on energy in the transition process from a fluttering stage to a rotating speed stabilizing stage is met, the success rate of starting is improved, and the low-temperature starting performance of the automobile is improved;
3. before starting, the storage battery charges the ED L C capacitor in a constant-current mode, so that the charging current is small, the energy of the storage battery is released slowly and slightly, the starting energy of the storage battery is not greatly influenced, and the energy of the storage battery is transferred and effectively utilized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a block diagram of an overall system provided by the present invention;
FIG. 2 is a schematic diagram of the overall system provided by the present invention;
FIG. 3 is a circuit diagram of a parallel connection of a battery and an ED L C capacitor starting power supply apparatus provided by the present invention;
FIG. 4 is an external view of the ED L C capacitor starting power supply device provided by the present invention;
FIG. 5 is a schematic diagram of an internal structure of an ED L C capacitor starting power supply device provided by the present invention;
FIG. 6 is a diagram of a prior art engine starting process at-40 deg.C provided by the present invention;
FIG. 7 is a graph illustrating the variation of the output current of the battery with time according to the prior art;
in the figure, 1 storage battery, 2ED L C capacitor starting power supply device, 21ED L C capacitor, 22 microcontroller, 23 relay, 24 sensor, 25 clock/pulse width modulation module, 26 automatic control switch, 27 system circuit board and 28 casing.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
we take the Shaanqi heavy truck N3000 car as a test object to study, and assemble the Weichai 6BT5.9 type diesel engine and the sail brand low-temperature storage battery 1. The starting process of the engine at the temperature of-40 ℃ can be divided into 4 stages: a starting stage, a temperature rising stage, a shaking stage and a stable operation stage. As shown in fig. 6.
In the starting stage, the starter drags each friction pair of the engine to rotate from a standstill, oil supply between the friction pairs is insufficient, semi-dry friction or dry friction is formed, starting resistance moment is large, and energy consumption is large. Along with the rotation of the engine, the lubricating state between the friction pairs is gradually improved, the resistance is reduced, the rotating speed is slowly increased, and meanwhile, the piston compresses air, so that the temperature in the cylinder is also gradually increased, and the atomization of fuel oil is improved. To create an advantageous condition for the fire, defined as the warm-up phase, the energy demand on the power supply is reduced. With increasing rotational speed, the combustion conditions improve. The individual cylinders of the engine start to catch fire, the engine shakes, and the engine enters a shaking stage. From the shaking stage of individual cylinder ignition to the stage of stable rotation speed and successful engine starting, the power supply is required to provide larger output power, so that the rotation speed of the engine is rapidly increased. However, since the ionization performance of the electrolyte of the lead acid storage battery 1 under low temperature conditions is deteriorated, the terminal voltage and the effective output current of the storage battery 1 are remarkably decreased. Particularly, at the temperature of-40 ℃, the effective energy output can not be more than 10 percent of the rated capacity, and the requirement of each stage of the starting process on the energy cannot be met. The curve of the output current of the battery 1 with time when the engine is started in an environment of-40 ℃. As shown in fig. 7.
When the engine starts, the output current of the storage battery 1 is large, the part of energy is mainly used for overcoming the resistance torque and dragging the engine to rotate, and the energy consumption is large. The output average current of the battery 1 rapidly decreases and gradually decreases with the lapse of time. When the starting process progresses from the judder phase to the rotational speed stabilization phase and the battery 1 is required to provide a larger output power, its output capacity is already insufficient. The rotating speed of the engine cannot be rapidly increased, which is not beneficial to successful starting and even leads to failed starting. After a period of time, when the electric quantity of the storage battery 1 is recovered, and the storage battery is started again, the energy which can be output by the storage battery 1 is less than that of the previous time, and the starting success rate is lower.
1-3, the heavy vehicle starting emergency power supply system of the ED L C capacitor of the embodiment comprises a storage battery 1, wherein the storage battery 1 supplies power to a starter of an engine through a discharge circuit, and an ED L C capacitor starting power supply device 2 is connected in parallel with two ends of the storage battery 1;
the ED L C capacitor starting power supply device 2 consists of an ED L C capacitor 21, a microcontroller 22, a relay 23, a sensor 24, a clock/pulse width modulation module 25 and an automatic control switch 26, and is integrated on a system circuit board 27;
the storage battery 1 charges an ED L C capacitor 21 through a boosting charging circuit, an automatic control switch 26 is arranged on the charging circuit and is controlled by a microcontroller 22, and the ED L C capacitor 21 supplies power to a starter of an engine through a discharging circuit;
the microcontroller 22 acquires an ignition switch signal through the relay 23, the microcontroller 22 acquires an ambient temperature signal, a storage battery 1 voltage signal and a capacitance voltage signal through the sensor 24, and the pulse width modulation module acquires an engine rotating speed signal to obtain the number of pulses in unit time, so that the rotating speed of the engine is calculated and data is sent to the microcontroller 22; the output end of the microcontroller 22 is connected with the boost charging circuit and the discharging circuit;
the microcontroller 22 integrates the ambient temperature, engine speed and start time information to determine the discharge timing of the ED L C capacitor 21 through a control algorithm.
Further, the boost charging circuit includes a boost converter.
Further, the sensor 24 includes a temperature sensor, a battery voltage sensor, and a capacitance voltage sensor, which are respectively used for acquiring the ambient temperature, the voltage of the battery 1, and the capacitance voltage, and the sensor 24 is connected to the microcontroller 22 through a high-precision converter, and is used for acquiring signals. The model of the temperature sensor is set to WZP-PT100, and the storage battery voltage sensor and the capacitance voltage sensor adopt CHV-25P voltage sensors.
Further, the microcontroller 22 is a single chip microcomputer, and the single chip microcomputer includes a ram.8kb internal memory of 512B, an illumination interface, a USB interface, a cigarette lighter interface, and an automatic alarm.
Further, the microcontroller 22 outputs a boost circuit control signal to the boost charging circuit by using a USB interface (normal AB port) for controlling the storage battery 1 to boost and charge the ED L C capacitor 21.
Further, the microcontroller 22 outputs a capacitive energy output control signal to the battery 1 and the ED L C capacitor 21 through the USB interface, for controlling the battery 1 and the ED L C capacitor 21 to supply power to the starter of the engine.
Further, the microcontroller 22 outputs indicator light signals to the charge indicator light and the parallel indicator light through the illumination interface, and the charge indicator light and the parallel indicator light are integrated on the system circuit board 27.
The implementation scene is specifically that the method utilizes the characteristics of fast capacitor charging, large capacity, large discharging current and the like to connect an ED L C capacitor starting power supply device 2 to a vehicle power supply system in parallel, a microcontroller 22 controls an automatic control switch 26, a boosting charging circuit is utilized to store a part of energy of a storage battery 1 into an ED L C capacitor 21, when a pulse width modulation module detects that the rotating speed of an engine rises to the point that a certain cylinder is on fire, the microcontroller 22 controls the ED L C capacitor 21 to discharge, the charging electric quantity after boosting is released quickly, the rotating speed of the engine rises quickly, and the success of one-time starting of the engine is guaranteed.
The invention directly connects the ED L C capacitor starting power supply device 2 to the two ends of the storage battery 1 in parallel, the parallel indicator light is on, the discharging is started from the moment when the engine is started, the stored energy plays a role before the most needed energy, the discharging of the ED L C capacitor 21 and the control strategy are researched, the discharging time is controlled, the discharging time is released at the moment when the rotating speed of the engine is needed to be increased, the requirement of the engine on energy in the transition process from the flutter stage to the rotating speed stabilizing stage is met, the starting success rate is improved, the low-temperature starting performance of an automobile is improved, and certain innovativeness is provided.
The system design hardware consists of ED L C capacitor 21, microcontroller 22, relay 23, sensor 24, clock/pulse width modulation module 25 and automatic control switch 26.
The ED L C capacitor 21 is an electrochemical energy storage component, is limited by volume and mass, and has a common capacity of 45-70F, which is difficult to be improved continuously, because the stored energy of the capacitor depends on the capacity of the capacitor and the voltage at two ends of the capacitor, namely, the power is the capacity and the voltage 2/2, in order to increase the energy stored by the capacitor, the invention is provided with a boost charging circuit which can improve the charging voltage of the capacitor, and when the end voltage of the capacitor is improved from 24V to 36V under the condition that the volume of the capacitor is not changed, the stored energy of the capacitor and the energy of a lithium cobaltate battery cell of an emergency power supply can be improved to 20 times or even 50 times of the original energy, and the discharge capacity of the capacitor is super strong;
the microcontroller 22 is a newly-introduced singlechip with strong function, small volume and low cost, and the bus clock of the chip can reach 20MHz at most and is provided with a built-in RAM (random access memory) of 512B (random access memory) of 8 KB. The peripheral interfaces are rich, and the multifunctional USB flash disk has the functions of illumination, USB, cigar lighter interfaces, automatic alarm and the like, and is convenient to communicate with external equipment;
the adoption of a multi-path high-precision converter and a multi-path time delay pulse width modulation module facilitates signal acquisition;
in the system, 3 paths of sensors 24 are used for respectively acquiring ambient temperature, voltage of a storage battery 1 and capacitance voltage signals; the clock/pulse width modulation module 25 is used for collecting the engine rotating speed signal to obtain the pulse number in unit time, so that the rotating speed of the engine is calculated;
The main function of the system circuit board 27 is to control the charging and discharging of the capacitor, when the system is charged, the sensor 24 is used to detect the ambient temperature and the capacitor voltage to determine whether the auxiliary power is needed, if so, the automatic control switch 26 is used to turn on the switch of the storage battery 1, the power indicator lamp is on, when the voltage at the two ends of the ED L C capacitor 21 reaches the preset starting target value, the power indicator lamp is off, and the vehicle can enter the starting state.
4-5, still include the shell 28, the ED L C capacitor starting power supply unit 2, install on the car, the ED L C capacitor starting power supply unit 2 includes shell 28, the ED L C capacitor 21 and battery 1 are all fixed in shell 28.
Example 2:
experimental analysis ED L C capacitor 21 low-temperature starting emergency power supply system is installed on the N3000 heavy truck automobile of Shanxi province, and cold low-temperature and ultra-low-temperature starting application is carried out in Xinjiang and northeast provinces.
Under the loading state condition that the environmental temperature is-4 l ℃, firstly, an ED L C capacitor starting power supply device 2 is connected with an original power supply system in parallel to serve as an auxiliary power supply, a microcontroller 22 acquires an environmental temperature signal through a temperature sensor and judges whether the auxiliary power supply is needed for starting (the auxiliary power supply works when the environment is lower than 5 ℃ through software setting), then, an ED L C capacitor 21 is charged through a boost charging circuit, the time consumption of the charging process is nearly 2min, after a charging indicator lamp is turned off after the charging is completed, a starting switch can be rotated to enter a starting state, and the engine is successfully started once in the test, so that the expected effect is achieved.
During starting, when the ED L C capacitor 21 and the power supply battery core are discharged together, the input current of the instantaneous starter is increased by nearly 1000A, so that the rotating speed of the engine is rapidly increased to achieve ignition starting success.
The invention designs the hardware circuit and the control software of the system, researches the control strategy of the capacitor release energy gap, and carries out test verification and analysis, and tests prove that the system effectively improves the low-temperature starting performance of the vehicle, shortens the starting time, saves energy, and creates economic benefit maximization and various performance guarantees of the vehicle.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. A heavy vehicle starting emergency power supply system of an ED L C capacitor comprises a storage battery (1), wherein the storage battery (1) supplies power to a starter of an engine through a discharge circuit, and is characterized in that two ends of the storage battery (1) are connected with an ED L C capacitor starting power supply device (2) in parallel;
the ED L C capacitor starting power supply device (2) consists of an ED L C capacitor (21), a microcontroller (22), a relay (23), a sensor (24), a clock/pulse width modulation module (25) and an automatic control switch (26), and is integrated on a system circuit board (27);
the storage battery (1) charges an ED L C capacitor (21) through a boosting charging circuit, an automatic control switch (26) is arranged on the charging circuit and is controlled by a microcontroller (22), and the ED L C capacitor (21) supplies power to a starter of an engine through a discharging circuit;
the microcontroller (22) collects ignition switch signals through a relay (23), the microcontroller (22) collects ambient temperature, voltage of the storage battery (1) and capacitance voltage signals through a sensor (24), the pulse width modulation module collects engine rotating speed signals, the engine rotating speed is calculated, and data are sent to the microcontroller (22); the output end of the microcontroller (22) is connected with the boosting charging circuit and the discharging circuit;
the microcontroller (22) integrates the external environment temperature, the engine speed and the starting time information, and determines the discharging time of the ED L C capacitor (21) through a control algorithm.
2. A heavy vehicle starting emergency power supply system of ED L C capacitor according to claim 1, characterized in that it further comprises a housing (28), the ED L C capacitor starting power supply device (2) is mounted on the vehicle, the ED L C capacitor starting power supply device (2) comprises a housing (28), the ED L C capacitor (21) and the accumulator (1) are both fixed in the housing (28).
3. A heavy vehicle starting emergency power supply system for an ED L C capacitor according to claim 1, wherein the boost charging circuit includes a boost converter.
4. A heavy vehicle starting emergency power supply system of ED L C capacitor according to claim 1, characterized in that, the sensors (24) include temperature sensor, accumulator voltage sensor, capacitance voltage sensor for collecting ambient temperature, accumulator (1) voltage and capacitance voltage, respectively, the sensors (24) are connected with the microcontroller (22) through converter for signal collection.
5. The heavy vehicle starting emergency power supply system of the ED L C capacitor as claimed in claim 1, wherein the microcontroller (22) is a single chip microcomputer including a RAM.8KB internal memory of 512B, a lighting interface, a USB interface, a cigarette lighter interface and an automatic alarm.
6. A heavy vehicle starting emergency power supply system of ED L C capacitor according to claim 5, characterized in that, the microcontroller (22) uses USB interface to output the control signal of the voltage boosting circuit to the voltage boosting charge circuit for controlling the accumulator (1) to boost charge the ED L C capacitor (21).
7. A heavy vehicle starting emergency power supply system of ED L C capacitor according to claim 5, characterized in that the microcontroller (22) outputs capacitive energy output control signals to the battery (1) and ED L C capacitor (21) through USB interface for controlling the battery (1) and ED L C capacitor (21) to power the starter of the engine.
8. A heavy vehicle starting emergency power supply system of ED L C capacitor according to claim 5, wherein the microcontroller (22) outputs indicator light signals to the charge indicator light and the parallel indicator light through the lighting interface, both integrated on the system circuit board (27).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115013214A (en) * | 2022-07-25 | 2022-09-06 | 潍柴动力股份有限公司 | Low-temperature starting method, device and equipment for engine |
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| CN111502882B (en) | 2022-01-28 |
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