CN114483413A - Engine starting method of light mixing system, light mixing system and storage medium - Google Patents
Engine starting method of light mixing system, light mixing system and storage medium Download PDFInfo
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- CN114483413A CN114483413A CN202210151827.7A CN202210151827A CN114483413A CN 114483413 A CN114483413 A CN 114483413A CN 202210151827 A CN202210151827 A CN 202210151827A CN 114483413 A CN114483413 A CN 114483413A
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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
- F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
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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
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The embodiment of the invention discloses an engine starting method of a light mixing system, the light mixing system and a storage medium. The method comprises the following steps: when detecting that the light mixing system is electrified and associated signals are received, executing the electrification of the light mixing system; after the light mixing system is successfully electrified, detecting whether the discharge power of the first battery meets the starting power requirement of the motor; if yes, adopting a first battery to supply power to the motor when a starting signal is received, and finishing the starting of the engine; if not, the bidirectional direct current converter is controlled to increase the voltage of the second battery to be the same as that of the first battery, and when a starting signal is received, the first battery and the second battery are used for supplying power to the motor together, and the starting of the engine is completed. Compared with the prior art, the technical scheme of the embodiment of the invention can meet the power requirement of starting the engine in a low-temperature environment while meeting the requirement of starting the engine in a hot state, improve the low-temperature starting capability of the light mixing system, maximally utilize the advantage of starting the motor and improve the starting comfort of the engine.
Description
Technical Field
The embodiment of the invention relates to the technical field of automobile engine starting, in particular to an engine starting method of a light mixing system, the light mixing system and a storage medium.
Background
The hybrid system is used as a hybrid technology for effectively reducing the actual oil consumption of the vehicle, and more attention is paid to the hybrid system due to the advantages of ultrahigh cost performance, comfortable start-stop function and small change to the conventional vehicle. However, because the cold start power requirement of the engine is large, particularly the low-temperature discharge power of the lithium ion battery is limited, the vehicle engine with the light mixing system is started for the first time at present, particularly the vehicle engine is started by adopting a starter at low temperature, and the engine cannot be started by adopting a motor. Therefore, the mild hybrid system cannot start the engine in a low temperature environment although the engine start-stop function can be realized.
Disclosure of Invention
The invention provides an engine starting method of a light mixing system, the light mixing system and a storage medium, which meet the power requirement of starting an engine in a low-temperature environment while meeting the hot-state starting of the engine, improve the low-temperature starting capability of the light mixing system, maximally utilize the advantage of starting a motor and improve the starting comfort of the engine.
In a first aspect, an embodiment of the present invention provides an engine starting method for a mild mixing system, including:
when detecting that the light mixing system power-on associated signal is received, executing the light mixing system power-on;
after the light mixing system is successfully electrified, detecting whether the discharge power of the first battery meets the starting power requirement of the motor;
if yes, the first battery is adopted to supply power to the motor when a starting signal is received, and the starting of the engine is completed;
and if the voltage of the second battery is not satisfied, controlling the bidirectional direct current converter to increase the voltage of the second battery to be the same as the voltage of the first battery, and when a starting signal is received, using the first battery and the second battery to jointly supply power to the motor to finish the starting of the engine.
Optionally, the power-on related signal includes an anti-theft release signal and a sleep wake-up signal, the anti-theft release signal is used for determining an intention of the user to get on the vehicle, and the sleep wake-up signal is used for determining an intention of the user to get off the vehicle again.
Optionally, before the light mixing system is successfully powered on, it is further determined whether initialization, pre-charging, and relay pull-in the first battery of the light mixing system are normally performed.
In a second aspect, an embodiment of the present invention further provides a light mixing system, where the system includes a first battery, a motor, a first electrical load, a bidirectional dc converter, a second battery, and a second electrical load, where a high-voltage side of the bidirectional dc converter, the motor, and the first electrical load are all electrically connected to the first battery, and a low-voltage side of the bidirectional dc converter, and the second electrical load are all electrically connected to the second battery;
the light mixing system also comprises an engine starting device, and the engine starting device is used for executing the light mixing system power-on when detecting that the light mixing system power-on related signal is received; after the light mixing system is successfully electrified, detecting whether the discharge power of the first battery meets the starting power requirement of the motor; if yes, the first battery is adopted to supply power to the motor when a starting signal is received, and the starting of the engine is completed; and if the voltage of the second battery is not satisfied, controlling the bidirectional direct current converter to increase the voltage of the second battery to be the same as the voltage of the first battery, and when a starting signal is received, using the first battery and the second battery to jointly supply power to the motor to finish the starting of the engine.
Optionally, the first battery is used for supplying power to the motor and the first electrical load, and the first battery indirectly supplies power to the second battery and the second electrical load through the bidirectional dc converter; the first battery is also used for storing and recycling electric energy under the working conditions of braking and sliding of the whole vehicle.
Optionally, when the motor is used as a driving motor, the motor provides assistance for the engine; when the motor is used as a generator, the motor is driven by the engine to generate power, directly supplies power to the first battery and the first electrical load, and indirectly supplies power to the second battery and the second electrical load through the bidirectional direct current converter.
Optionally, the bidirectional dc converter is configured to transmit the charge of the second battery to a first electrical network, perform a reverse pre-charge before a relay in the first battery is closed, assist the first battery in supplying power to the motor, and start the engine with the motor.
Optionally, the bidirectional dc converter is further configured to transfer the power of the first battery to a second electrical network for supplying power to the second battery and the second electrical load.
In a third aspect, embodiments of the present invention further provide a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements an engine starting method of a soft-mixing system according to any one of the embodiments of the present invention.
When the engine of the vehicle with the light mixing system is started at low temperature at present, the engine is still started by a starter and cannot be started by a motor due to the fact that the requirement on cold starting power of the engine is high, and particularly the low-temperature discharging power of a battery is limited. According to the technical scheme, under the low-temperature environment, whether the discharge power of the first battery meets the starting power requirement of the motor or not is judged, under the condition that the discharge power of the first battery does not meet the starting power requirement, the voltage of the second battery is increased to be the same as the voltage of the first battery by adopting the bidirectional direct-current converter, the motor is supplied with power together with the first battery, the motor is used for starting the engine, the problem that the engine cannot be started under the low-temperature environment in the prior art is solved, the power requirement that the engine is started under the low-temperature environment is met while the engine is started in a hot state, the low-temperature starting capability of the light mixing system is improved, the advantage of starting the motor is utilized to the maximum extent, and the starting comfort of the engine is improved.
Drawings
FIG. 1 is a flowchart illustrating an engine starting method for a mild mixing system according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating an engine starting method of a second embodiment of the present invention;
FIG. 3 is a flowchart of an engine starting method of a soft hybrid system according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a light mixing system according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of an engine starting method of a mild mixing system according to an embodiment of the present invention, and referring to fig. 1, the present embodiment is applicable to starting an engine in a low temperature environment, and the method may be executed by an engine starting apparatus, and specifically includes the following steps:
and S110, when the light mixing system power-on related signal is detected to be received, the light mixing system power-on is executed.
Wherein, the power-on of the light mixing system is triggered by the power-on related signal. The power-on related signal can be an anti-theft release signal and a dormancy awakening signal, the anti-theft release signal is equivalent to starting intention judgment, and if the anti-theft release signal is detected to indicate that a user wants to start the engine immediately, the power-on of the gently-mixed system is carried out. The sleep wake-up signal is equivalent to the judgment of the user's intention of starting again, and if the signal is detected to indicate that the user wants to start the engine again, the light mixing system is powered on. And if the light mixing system is not successfully powered on, reporting the fault of the light mixing system.
And S120, after the light mixing system is successfully electrified, detecting whether the discharge power of the first battery meets the starting power requirement of the motor.
The starting power of the motor refers to the output power of the motor under the rated input power. And when the light mixing system is successfully electrified, comparing the discharge power of the first battery with the starting power of the motor, and judging whether the discharge power meets the starting power requirement or not so as to carry out the next engine starting operation.
And S130, if so, adopting the first battery to supply power to the motor when receiving the starting signal, and finishing the starting of the engine.
If the discharge power of the first battery meets the starting power requirement of the motor, namely the discharge power of the first battery meets the maximum starting power requirement of the cold start of the motor, entering a starting waiting state and always detecting whether a starting signal is received. And if the starting signal is received, the first battery is adopted to supply power to the motor, and the starting of the engine is completed.
And S140, if the voltage of the second battery is not satisfied, controlling the bidirectional direct current converter to increase the voltage of the second battery to be the same as that of the first battery, and when a starting signal is received, using the first battery and the second battery to supply power to the motor together to finish the starting of the engine.
The bidirectional direct current converter is used for converting a low-voltage direct current power supply into a high-voltage direct current power supply and converting the high-voltage direct current power supply into a low-voltage direct current power supply. When the discharging power of the first battery does not meet the starting power requirement of the motor, the bidirectional direct current converter is controlled to increase the voltage of the second battery to be the same as that of the first battery, and the starting waiting state is entered, and whether a starting signal is received or not is always detected. And if the starting signal is received, the first battery and the second battery are used together to supply power for the motor, and the engine is started. It should be noted that the first battery voltage is greater than the second battery voltage.
When the engine of the vehicle with the light mixing system is started at low temperature at present, the engine is still started by a starter and cannot be started by a motor due to the fact that the requirement on cold starting power of the engine is high, and particularly the low-temperature discharging power of a battery is limited. According to the technical scheme, under the low-temperature environment, whether the discharge power of the first battery meets the starting power requirement of the motor or not is judged, under the condition that the discharge power of the first battery does not meet the starting power requirement, the voltage of the second battery is increased to be the same as the voltage of the first battery by adopting the bidirectional direct-current converter, the motor is supplied with power together with the first battery, the motor is used for starting the engine, the problem that the engine cannot be started under the low-temperature environment in the prior art is solved, the power requirement that the engine is started under the low-temperature environment is met while the engine is started in a hot state, the low-temperature starting capability of the light mixing system is improved, the advantage of starting the motor is utilized to the maximum extent, and the starting comfort of the engine is improved.
Example two
In this embodiment, the above embodiment is taken as a basis for refinement, and fig. 2 is a flowchart of an engine starting method of a light mixing system according to a second embodiment of the present invention, and referring to fig. 2, the method specifically includes:
and S210, when the light mixing system power-on related signal is detected to be received, the light mixing system power-on is executed.
Optionally, the power-on related signal includes an anti-theft release signal and a sleep wake-up signal, the anti-theft release signal is used for determining an intention of the user to get on the vehicle, and the sleep wake-up signal is used for determining an intention of the user to get off the vehicle again.
Specifically, the light mixing system is powered on by a power-on related signal, and when an anti-theft release signal or a sleep wake-up signal is detected, the light mixing system is powered on. The user's intention of getting on the vehicle or the user's intention of starting the vehicle again is judged by receiving the anti-theft release signal and the dormancy wakeup signal, so that the light mixing system can be ensured to finish the power-on and related detection work as soon as possible, and the user can be prepared in advance for starting the engine.
And S220, judging whether the initialization, the pre-charging and the relay pull-in of the first battery of the light mixing system are normally carried out.
Optionally, before the light mixing system is successfully powered on, it is further determined whether initialization, pre-charging, and relay actuation in the first battery of the light mixing system are normally performed.
Specifically, before the light mixing system is powered on successfully, whether the light mixing system is initialized normally, whether the pre-charging is normal, and whether the relay in the first battery is normally attracted need to be judged, if the conditions are not met, the light mixing system is reported to have a fault, and the light mixing system is not powered on and records a corresponding fault code.
It should be noted that the relay is arranged inside the first battery, the relay is equivalent to a switch, and in order to ensure that the voltages at the two ends of the relay before the relay is attracted are consistent, the relay can be attracted only after the battery is precharged; if the battery pre-charging is not finished, the relay cannot be actuated, and the light mixing system fault is reported.
And S230, after the light mixing system is successfully electrified, detecting whether the discharge power of the first battery meets the starting power requirement of the motor.
And S240, if so, adopting the first battery to supply power to the motor when the starting signal is received, and finishing the starting of the engine.
And S250, if the voltage of the second battery is not satisfied, controlling the bidirectional direct current converter to increase the voltage of the second battery to be the same as that of the first battery, and when a starting signal is received, using the first battery and the second battery to supply power to the motor together to finish the starting of the engine.
When the vehicle engine of the existing light mixing system is started at low temperature, the engine is still started by a starter and cannot be started by a motor due to the fact that the requirement on cold starting power of the engine is high, and particularly the low-temperature discharge power of a lithium ion battery is limited. Therefore, the mild hybrid system cannot start the engine in a low temperature environment although the engine start-stop function can be realized. The engine starting method of the light mixing system can ensure that the engine is started for the first time, particularly, the engine is started in a low-temperature environment, the advantage of starting the motor is utilized to the maximum extent, and the starting comfort of the engine is improved.
EXAMPLE III
The present embodiment is detailed based on the above embodiments, and the present embodiment is exemplified by using a first battery as a 48V battery, a second battery as a 12V lead-acid battery, and a motor as a 48V motor, and those skilled in the art will know that the types of the batteries and the motors are not limited thereto. Fig. 3 is a detailed flowchart of an engine starting method of a soft mixing system according to a third embodiment of the present invention, and referring to fig. 3, the method includes the following steps:
s301, detecting an anti-theft release or dormancy awakening signal, and powering on the light mixing system.
S302, whether the light mixing system is successfully electrified is judged. If yes, go to S304; if not, go to S303.
And S303, reporting the fault of the light mixing system.
S304, judging whether the 48V battery discharge power meets the starting power requirement of the 48V motor. If yes, executing S306; if not, S305 is executed.
And S305, controlling the bidirectional direct current converter to reversely output the electric quantity of the 12V lead-acid storage battery to the 48V battery side.
S306, judging whether a starting signal is received. If yes, go to S308; if not, go to step S307.
S307, starting and waiting.
And S308, starting the engine by adopting a 48V motor.
It should be noted that if the discharge power of the 48V battery meets the starting power requirement of the 48V motor but the starting signal is not received, the starting waiting state is entered, and until the starting signal is received, the 48V battery is used for supplying power to the 48V motor directly to start the engine. And if the discharge power of the 48V battery does not meet the starting power requirement of the 48V motor, controlling the bidirectional direct current converter to reversely output the electric quantity of the 12V lead-acid storage battery to the 48V battery side, entering a starting waiting state and detecting whether a starting signal is received all the time. And if the starting signal is received, the 12V lead-acid storage battery and the 48V battery are used for supplying power to the 48V motor together, and the engine is started.
The engine starting method provided by the embodiment meets the power requirement of the engine for starting in a low-temperature environment while meeting the requirement of the engine for hot starting, can improve the low-temperature starting capability of the light mixing system, maximally utilizes the advantage of starting the motor, and improves the starting comfort of the engine.
Example four
Fig. 4 is a schematic structural diagram of a light mixing system according to a fourth embodiment of the present invention, and referring to fig. 4, the embodiment of the present invention further provides a light mixing system, the system includes a first battery 401, a motor 402, a first electrical load 403, a bidirectional dc converter 404, a second battery 405, and a second electrical load 406, a high-voltage side of the bidirectional dc converter 404, the motor 402, and the first electrical load 403 are all electrically connected to the first battery 401, and a low-voltage side of the bidirectional dc converter 404, and the second electrical load 406 are both electrically connected to the second battery 405;
the light mixing system further comprises an engine starting device 408, and the engine starting device 408 is configured to execute powering on of the light mixing system when detecting that the light mixing system powering on associated signal is received; after the light mixing system is successfully powered on, detecting whether the discharge power of the first battery 401 meets the start power requirement of the motor 402; if yes, the first battery 401 is adopted to supply power to the motor 402 when a starting signal is received, and the starting of the engine 407 is completed; if not, the bidirectional direct current converter 404 is controlled to increase the voltage of the second battery 405 to be the same as the voltage of the first battery 401, and when a starting signal is received, the first battery 401 and the second battery 405 are used together to supply power to the motor 402, and the starting of the engine 407 is completed.
Specifically, the first battery 401 in the mild hybrid system may be a 48V battery, the motor 402 may be a 48V motor, the first electrical load 403 may be a 48V electrical load, the second battery 405 may be a 12V lead-acid battery, and the second electrical load 406 may be a 12V electrical load.
When the engine starting device 408 in the light mixing system receives the power-on related signal, the power-on operation of the light mixing system is executed. After the power-on is successful, detecting whether the discharge power of the 48V battery meets the starting power of the 48V motor, and if so, supplying power to the 48V motor by using the 48V battery to finish the starting of the engine 407; if the requirement is not met, the bidirectional direct current converter 404 is controlled to reversely output the electric quantity of the 12V lead-acid storage battery to the 48V battery side, the voltage of the 12V lead-acid storage battery is increased to be the same as that of the 48V battery, and when a starting signal is received, the 48V battery and the 12V lead-acid storage battery are used for supplying power to the 48V motor together, so that the engine 407 is started.
The engine starting device in the light mixing system can execute the method provided by any embodiment of the invention, so the beneficial effects of the light mixing system and the engine starting method are the same, and the detailed description is omitted.
With continued reference to fig. 4, optionally, a first battery 401 is used to power the motor 402, a first electrical load 403, the first battery 401 indirectly powering a second battery 405 and a second electrical load 406 through a bi-directional dc converter 404; the first battery 401 is also used for storing and recovering electric energy under the braking and sliding working conditions of the whole vehicle.
The 48V battery is used for supplying power for the 48V motor and the 48V electric load; the 48V battery may also indirectly supply power to the 12V lead acid battery and the 12V electrical load through the bi-directional dc converter 404; under the working conditions of braking and sliding of the whole vehicle, the 48V battery can also store and recover electric energy.
With continued reference to fig. 4, optionally, the electric machine 402, when acting as a drive motor, provides power assist to the engine 407; when the motor 402 is used as a generator, the generator 407 generates electricity to directly supply power to the first battery 401 and the first electrical load 403, and indirectly supplies power to the second battery 405 and the second electrical load 406 through the bidirectional dc converter 404.
Wherein, when the 48V motor is used as a driving motor, the motor provides power for the engine 407; when the 48V motor is used as a generator, the engine 407 drives the generator to generate power, the power is directly supplied to a 48V battery and a 48V electrical load, and the power is indirectly supplied to a 12V lead-acid storage battery and a 12V electrical load through the bidirectional direct current converter 404.
With continued reference to fig. 4, optionally, a bi-directional dc converter 404 is used to transfer charge from second battery 405 to the first electrical network, perform a reverse pre-charge before the relay in first battery 401 is closed, assist first battery 401 in powering electric machine 402, and start engine 407 with electric machine 402.
Wherein, the first electrical network may be a 48V electrical network. The bi-directional dc converter 404 is used to transfer the charge of the 12V lead-acid battery to the first electrical network, perform reverse pre-charging before the relay in the 48V battery is closed, reverse output the charge of the 12V lead-acid battery to the 48V battery side, and assist the 48V battery in powering the 48V motor, starting the engine 407 with the 48V motor.
With continued reference to fig. 4, optionally, the bi-directional dc converter 404 is also used to transfer the charge of the first battery 401 to a second electrical network for powering a second battery 405 and a second electrical load 406.
Wherein the second electrical network may be a 12V electrical network. The bi-directional dc converter 404 is also used to transfer the charge of the 48V battery to a second electrical network for powering a 12V lead-acid battery and a 12V electrical load.
EXAMPLE five
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements an engine starting method of a soft hybrid system provided in any embodiment of the present invention.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, Ruby, Go, and conventional procedural programming languages, such as the "C" programming language or similar programming languages, and computer languages for AI algorithms. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. An engine starting method for a mild hybrid system, comprising:
when detecting that the light mixing system power-on associated signal is received, executing the light mixing system power-on;
after the light mixing system is successfully electrified, detecting whether the discharge power of the first battery meets the starting power requirement of the motor;
if yes, the first battery is adopted to supply power to the motor when a starting signal is received, and the starting of the engine is completed;
and if the voltage of the second battery is not satisfied, controlling the bidirectional direct current converter to increase the voltage of the second battery to be the same as the voltage of the first battery, and when a starting signal is received, using the first battery and the second battery to jointly supply power to the motor to finish the starting of the engine.
2. The method according to claim 1, wherein the power-on related signal comprises an anti-theft release signal and a sleep wake-up signal, the anti-theft release signal is used for determining the user's intention to get on the vehicle, and the sleep wake-up signal is used for determining the user's intention to start up again.
3. The starting method according to claim 1, further comprising determining whether the initialization, the pre-charging and the relay pull-in of the first battery of the gently mixing system are performed normally before the powering-up of the gently mixing system is successful.
4. A light mixing system is characterized by comprising a first battery, a motor, a first electrical load, a bidirectional direct current converter, a second battery and a second electrical load, wherein the high-voltage side of the bidirectional direct current converter, the motor and the first electrical load are all electrically connected with the first battery, and the low-voltage side of the bidirectional direct current converter and the second electrical load are all electrically connected with the second battery;
the light mixing system also comprises an engine starting device, and the engine starting device is used for executing the light mixing system power-on when detecting that the light mixing system power-on related signal is received; after the light mixing system is successfully electrified, detecting whether the discharge power of the first battery meets the starting power requirement of the motor; if yes, the first battery is adopted to supply power to the motor when a starting signal is received, and the starting of the engine is completed; and if the voltage of the second battery is not satisfied, controlling the bidirectional direct current converter to increase the voltage of the second battery to be the same as the voltage of the first battery, and when a starting signal is received, using the first battery and the second battery to jointly supply power to the motor to finish the starting of the engine.
5. The system of claim 4, wherein the first battery is configured to power the motor and the first electrical load, and the first battery indirectly powers the second battery and the second electrical load through the bi-directional DC converter; the first battery is also used for storing and recycling electric energy under the working conditions of braking and sliding of the whole vehicle.
6. The system of claim 4, wherein the electric machine, when acting as a drive motor, provides power assistance to the engine; when the motor is used as a generator, the motor is driven by the engine to generate power, directly supplies power to the first battery and the first electrical load, and indirectly supplies power to the second battery and the second electrical load through the bidirectional direct current converter.
7. The system of claim 4, wherein the bi-directional DC converter is configured to transfer charge from the second battery to a first electrical network, and wherein a reverse pre-charge is performed to assist the first battery in powering the electric machine with which the engine is started before a relay in the first battery is closed.
8. The system of claim 4, wherein the bi-directional DC converter is further configured to transfer the charge of the first battery to a second electrical network for powering the second battery and the second electrical load.
9. A computer-readable storage medium, storing a computer program, wherein the computer program, when executed by a processor, implements an engine starting method for a mild mixing system as recited in any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210151827.7A CN114483413A (en) | 2022-02-18 | 2022-02-18 | Engine starting method of light mixing system, light mixing system and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210151827.7A CN114483413A (en) | 2022-02-18 | 2022-02-18 | Engine starting method of light mixing system, light mixing system and storage medium |
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