CN115163368A - Engine starting method, device, equipment and storage medium - Google Patents
Engine starting method, device, equipment and storage medium Download PDFInfo
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- CN115163368A CN115163368A CN202210679331.7A CN202210679331A CN115163368A CN 115163368 A CN115163368 A CN 115163368A CN 202210679331 A CN202210679331 A CN 202210679331A CN 115163368 A CN115163368 A CN 115163368A
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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
- F02N11/10—Safety devices
- F02N11/106—Safety devices for stopping or interrupting starter actuation
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Abstract
The invention belongs to the field of vehicles, and discloses an engine starting method, an engine starting device, engine starting equipment and a storage medium. The method comprises the following steps: acquiring target driving required power and available power of an electric system of the vehicle; determining an electrical drive power from the electrical system available power and the accessory use power; when the electric drive power is smaller than the target drive demand power, determining an ignition target rotating speed according to the current temperature and the available power of the electric system; and starting the vehicle engine according to the ignition target rotating speed. According to the invention, when the electric drive power is smaller than the target drive demand power, the ignition target rotating speed is determined according to the current temperature and the available power of the electric system; and starting the vehicle engine according to the ignition target rotating speed. Compared with the existing mode of starting the vehicle engine according to the fixed ignition rotating speed, the mode provided by the invention can determine the ignition target rotating speed according to the current temperature and the available power of the electric system, and the starting efficiency of the engine is improved.
Description
Technical Field
The invention relates to the technical field of engine starting, in particular to an engine starting method, an engine starting device, engine starting equipment and a storage medium.
Background
The existing ignition mode of the engine is generally to calibrate the starting ignition rotating speed, when the engine reaches the preset ignition rotating speed, the engine is allowed to inject oil for ignition, after a certain time, failure is reported if the engine is not started successfully, and after failure for a certain number of times, the engine cannot be started. In the prior art, the engine is started by calibrating the starting ignition rotating speed, so that the starting efficiency of the engine is not high easily.
The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.
Disclosure of Invention
The invention mainly aims to provide an engine starting method, an engine starting device, engine starting equipment and a storage medium, and aims to solve the technical problem that the starting efficiency of an engine is low because the engine is started by calibrating the starting ignition rotating speed in the prior art.
To achieve the above object, the present invention provides an engine starting method comprising the steps of:
acquiring target driving required power and available power of an electric system of the vehicle;
determining an electrical drive power from the electrical system available power and the accessory use power;
when the electric drive power is smaller than the target drive demand power, determining an ignition target rotating speed according to the current temperature and the available power of the electric system;
and starting the vehicle engine according to the ignition target rotating speed.
Optionally, the step of determining an ignition target speed according to the current temperature and the available power of the electric system comprises:
acquiring the current environment temperature;
determining a first ignition rotating speed according to the current environment temperature;
determining a second ignition speed according to the available power of the electric system;
and determining an ignition target rotating speed according to the first ignition rotating speed and the second ignition rotating speed.
Optionally, the step of determining a second ignition speed based on the available power of the electrical system comprises:
when the available power of the electric system is greater than or equal to the preset first power, taking the preset first calibration rotating speed as a second ignition rotating speed;
when the available power of the electric system is smaller than or equal to a preset second power, taking a preset second calibration rotating speed as the second ignition rotating speed;
and when the available power of the electric system is greater than the preset second power and less than the preset first power, determining the second ignition rotating speed according to a preset gradient algorithm.
Optionally, the step of obtaining the target driving demand power of the vehicle includes:
acquiring the current speed and the opening degree of an accelerator pedal of a vehicle;
determining a target torque of the vehicle according to the current vehicle speed and the opening degree of an accelerator pedal;
and determining the target driving required power of the vehicle according to the target torque and the current vehicle speed.
Optionally, the step of determining electrical drive power from the electrical system available power and accessory use power comprises:
acquiring the use power corresponding to each power consumption component in a use state in the vehicle;
determining accessory use power according to the use power;
the electric drive power is obtained by subtracting the accessory use power from the electrical system available power.
Optionally, after the step of starting the vehicle engine according to the ignition target speed, the method further comprises:
starting a preset timer to start timing;
if the engine is not started successfully when the timing is finished, acquiring a third ignition rotating speed;
and starting the vehicle engine according to the third ignition rotating speed.
Optionally, after the step of starting the vehicle engine according to the third ignition rotation speed, the method further includes:
and when the failure times of starting the vehicle engine according to the third ignition rotating speed reach preset times, stopping starting the vehicle engine and sending a preset alarm prompt.
Further, to achieve the above object, the present invention also provides an engine starting apparatus comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring target driving required power and electric system available power of a vehicle;
an electric drive power determination module for determining an electric drive power from the electrical system available power and the accessory use power;
the ignition target rotating speed determining module is used for determining an ignition target rotating speed according to the current temperature and the available power of the electric system when the electric driving power is smaller than the target driving required power;
and the starting module is used for starting the vehicle engine according to the ignition target rotating speed.
Further, to achieve the above object, the present invention also proposes an engine starting apparatus comprising: a memory, a processor, and an engine start program stored on the memory and executable on the processor, the engine start program configured to implement the steps of the engine starting method as described above.
Furthermore, to achieve the above object, the present invention also proposes a storage medium having stored thereon an engine starting program which, when executed by a processor, implements the steps of the engine starting method as described above.
The method comprises the steps of obtaining target driving required power and available power of an electric system of the vehicle; determining an electrical drive power from the electrical system available power and the accessory use power; when the electric drive power is smaller than the target drive demand power, determining an ignition target rotating speed according to the current temperature and the available power of the electric system; and starting the vehicle engine according to the ignition target rotating speed. According to the invention, when the electric drive power is smaller than the target drive demand power, the ignition target rotating speed is determined according to the current temperature and the available power of the electric system; and starting the vehicle engine according to the ignition target rotating speed. Compared with the existing mode of starting the vehicle engine according to the fixed ignition rotating speed, the mode provided by the invention can determine the ignition target rotating speed according to the current temperature and the available power of the electric system, and the starting efficiency of the engine is improved.
Drawings
FIG. 1 is a schematic block diagram of an engine starting apparatus in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram of a first embodiment of the engine starting method of the present invention;
FIG. 3 is a schematic flow chart diagram of a second embodiment of the engine starting method of the present invention;
fig. 4 is a block diagram showing the construction of the first embodiment of the engine starting apparatus of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic diagram of an engine starting apparatus according to a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the engine starting apparatus may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to implement connection communication among these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in FIG. 1 does not constitute a limitation of the engine starting apparatus and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a storage medium, may include therein an operating system, a network communication module, a user interface module, and an engine start program.
In the engine starting apparatus shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the engine starting apparatus of the present invention may be provided in the engine starting apparatus which calls the engine starting program stored in the memory 1005 by the processor 1001 and executes the engine starting method provided by the embodiment of the present invention.
Based on the engine starting device, an engine starting method is provided according to an embodiment of the invention, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the engine starting method according to the invention.
In this embodiment, the engine starting method includes the steps of:
step S10: and acquiring the target driving required power and the available power of the electric system of the vehicle.
It should be noted that the execution subject of the embodiment may be a computing service device with data processing, network communication and program running functions, such as a mobile phone, a tablet computer, a personal computer, etc., or an electronic device or an engine starting device capable of implementing the above functions. The present embodiment and the following embodiments will be described below by taking the engine starting apparatus as an example.
It should be noted that the target driving demand power may be a power corresponding to a driving torque required by the vehicle to meet a vehicle speed desired by a user during running. The electrical system available power may be the power currently available to the vehicle.
Further, in order to start the engine of the vehicle in time and meet the driving demand of the user, the step of obtaining the target driving demand power of the vehicle includes: acquiring the current speed and the opening degree of an accelerator pedal of a vehicle; determining a target torque of the vehicle according to the current vehicle speed and the opening degree of an accelerator pedal; and determining the target driving required power of the vehicle according to the target torque and the current vehicle speed.
It should be noted that the scenario in the present embodiment is applied to a hybrid vehicle, where the current vehicle speed and the accelerator pedal opening are the current vehicle speed and the accelerator pedal opening corresponding to the case where the user uses the electric-only driving. The target torque may be a torque to be output, which is determined according to the current vehicle speed and the accelerator opening, and the charging and discharging capacity of the vehicle battery, the battery SOC, the motor torque capacity limit, and other information, in order to meet the current driving demand of the user. The determining of the target driving demand power of the vehicle from the target torque and the current vehicle speed may be multiplying the target torque by the current vehicle speed to obtain the target driving demand power of the vehicle.
Step S20: an electrical drive power is determined from the electrical system available power and the accessory use power.
It should be noted that the electric drive power may be a power that the vehicle can use for vehicle driving. The accessory usage power may be power used by all powered devices in the vehicle. The determining electrical drive power from the electrical system available power and the accessory usage power may be subtracting the accessory usage power from the electrical system available power.
Further, in order to reasonably determine the ignition target speed of the vehicle to improve the starting efficiency of the engine of the vehicle, the step S20 may include: acquiring the use power corresponding to each power consumption component in a use state in the vehicle; determining accessory use power according to the use power; the electric drive power is obtained by subtracting the accessory use power from the electrical system available power.
The determination of the accessory use power based on the use power may be performed by adding the use powers corresponding to the power consuming components in the use state to obtain the accessory use power.
Step S30: when the electric drive power is smaller than the target drive demand power, determining an ignition target rotating speed according to the current temperature and the available power of the electric system.
It should be noted that, when the electric drive power is smaller than the target drive required power, it is indicated that the acceleration requirement of the user cannot be met by the pure electric drive, at this time, the engine needs to be started, and the determining of the ignition target rotation speed according to the current temperature and the available power of the electric system may be to query a preset ignition rotation speed table according to the current temperature and the available power of the electric system to obtain a corresponding ignition target rotation speed. The preset ignition revolution meter may be a preset comparison table of the current temperature, the available power of the electric system and the ignition target revolution speed, wherein a corresponding relation between the current temperature, the available power of the electric system and the ignition target revolution speed is stored, and the corresponding ignition target revolution speed may be directly inquired according to the current temperature and the available power of the electric system.
Step S40: and starting the vehicle engine according to the ignition target rotating speed.
It should be noted that, the starting of the vehicle engine according to the ignition target rotation speed may be that the engine starting device controls the motor to drag the engine to start at the ignition target rotation speed, when the actual rotation speed reaches the ignition target rotation speed, the engine is allowed to inject oil and ignite, and at the same time, timing is started, whether the engine is successfully started in a feedback manner is judged within a certain time range, and if the engine is successfully started in a feedback manner, the engine starting process is ended. And if the engine fails to start within a certain time range, feeding back the failure of the engine start.
Further, in order to improve the starting efficiency of the engine, after the step S40, the method further includes: starting a preset timer to start timing; if the engine is not started successfully when the timing is finished, acquiring a third ignition rotating speed; and starting the vehicle engine according to the third ignition rotating speed.
It should be noted that the preset timer may be used to time a preset time period to determine whether the engine is started successfully within the preset time period, and if the engine is not started successfully after the time period is over, the third ignition rotation speed is obtained. The third ignition rotation speed may be the lowest injection ignition-capable rotation speed of the engine determined according to the model of the engine, and may be a fixed value, for example, 400rpm, when the emission or NVH is not considered. The third ignition rotational speed may also be obtained by querying a preset ignition rotational speed table according to the electric drive power, and the preset ignition rotational speed table may be a table storing the electric drive power and the corresponding ignition rotational speed. When the vehicle engine is started according to the third ignition rotating speed, if the vehicle engine is not started successfully, the vehicle engine is started again at the third ignition rotating speed at intervals of preset duration, if the vehicle engine is not started successfully for continuous preset times, the vehicle engine is stopped and a preset alarm prompt is sent out, and the preset alarm prompt can be used for prompting a user that the vehicle engine cannot be started. The preset duration and the preset times may be preset values, and may be adaptively adjusted according to actual conditions, which is not limited in this embodiment.
The method comprises the steps of obtaining target driving required power and available power of an electric system of a vehicle; determining an electrical drive power from the electrical system available power and the accessory use power; when the electric drive power is smaller than the target drive demand power, determining an ignition target rotating speed according to the current temperature and the available power of the electric system; and starting the vehicle engine according to the ignition target rotating speed. Since the present embodiment is to determine the ignition target rotational speed according to the current temperature and the electric system available power when the electric drive power is less than the target drive required power; and starting the vehicle engine according to the ignition target rotating speed. Compared with the existing mode of starting the vehicle engine according to the fixed ignition rotating speed, the mode of the embodiment can determine the ignition target rotating speed according to the current temperature and the available power of the electric system, and improves the starting efficiency of the engine.
Referring to fig. 3, fig. 3 is a schematic flow chart of a second embodiment of the engine starting method of the present invention.
Based on the first embodiment described above, in the present embodiment, the step S30 includes:
step S301: and acquiring the current ambient temperature.
It should be noted that the current ambient temperature may be a temperature of an environment in which the vehicle is currently located.
Step S302: and determining a first ignition rotating speed according to the current environment temperature.
It should be noted that, the determining the first ignition rotation speed according to the current environment temperature may be determining whether the current environment is higher than a preset temperature threshold, and if so, taking a rotation speed corresponding to a preset temperature higher than the preset temperature threshold as the first ignition rotation speed. If the current temperature is lower than the preset temperature threshold, inquiring a temperature and rotating speed comparison table according to the current temperature to obtain the first ignition rotating speed, wherein the temperature and rotating speed comparison table can be a preset comparison table of the current temperature and the ignition rotating speed when the current temperature is lower than or equal to the preset temperature threshold, and the highest rotating speed in the temperature and rotating speed comparison table is not higher than the rotating speed corresponding to the temperature which is higher than the preset temperature threshold. And the rule in the temperature and rotating speed comparison table is that the lower the temperature is, the lower the ignition rotating speed is. For example, when the current ambient temperature is higher than-10 degrees celsius, the first ignition rotation speed is a fixed value, such as 1100rpm, and when the current ambient temperature is lower than-10 degrees celsius and is-15 degrees celsius, the first ignition rotation speed is 900rpm.
Step S303: a second ignition speed is determined from the electrical system available power.
It should be noted that, the determining the second ignition rotation speed according to the available power of the electrical system may be obtaining the second ignition rotation speed by querying a preset power rotation speed comparison table according to the available power of the electrical system.
Further, in order to reasonably determine the target ignition rotation speed of the vehicle and improve the starting efficiency of the engine of the vehicle, step S303 may include: when the available power of the electric system is greater than or equal to the preset first power, taking the preset first calibration rotating speed as a second ignition rotating speed; when the available power of the electric system is smaller than or equal to a preset second power, taking a preset second calibration rotating speed as the second ignition rotating speed; and when the available power of the electric system is greater than the preset second power and less than the preset first power, determining the second ignition rotating speed according to a preset gradient algorithm.
It should be noted that the preset first power and the preset second power may be preset powers, where the preset first power is greater than the preset second power. The preset first calibration rotating speed and the preset second calibration rotating speed can be preset rotating speeds, wherein the preset first calibration rotating speed is greater than the preset second calibration rotating speed. The preset gradient algorithm may be to determine a gradient comparison table according to the preset first power, the preset second power, the preset first calibration rotation speed and the preset second calibration rotation speed, in the gradient comparison table, when the available power of the electrical system is larger, the corresponding rotation speed is larger, the maximum rotation speed in the gradient comparison table is the preset first calibration rotation speed, the maximum power is the preset first power, the minimum rotation speed in the gradient comparison table is the preset second calibration rotation speed, and the minimum power is the preset second power.
In a specific implementation, when the available power of the electric system is lower than a threshold value, for example 5Kw, the second ignition speed is a fixed value, for example 600rpm; the second ignition rotational speed is a fixed value, such as 1100rpm, when the available power of the electrical system is above a threshold value, such as 15 Kw. When the available power of the electric system is in the range of 5Kw to 15Kw, the lower the available power of the electric system in the range, the lower the second ignition rotating speed;
step S304: and determining an ignition target rotating speed according to the first ignition rotating speed and the second ignition rotating speed.
The determination of the ignition target rotation speed based on the first ignition rotation speed and the second ignition rotation speed may be performed by setting a lower one of the first ignition rotation speed and the second ignition rotation speed as the ignition target rotation speed.
The embodiment acquires the current ambient temperature; determining a first ignition rotating speed according to the current environment temperature; determining a second ignition speed according to the available power of the electric system; and determining an ignition target rotating speed according to the first ignition rotating speed and the second ignition rotating speed. The embodiment determines a first ignition rotating speed according to the current environment temperature; determining a second ignition speed according to the available power of the electric system; and determining an ignition target rotating speed according to the first ignition rotating speed and the second ignition rotating speed. Compared with the existing engine for starting the vehicle according to the fixed ignition rotating speed, the starting method has the advantages that the target rotating speed for starting the ignition of the engine is controlled according to the current environment temperature and the capability of a vehicle electrical system, and the starting success rate is improved.
Referring to fig. 4, fig. 4 is a block diagram showing the structure of the first embodiment of the engine starting apparatus according to the present invention.
As shown in fig. 4, the engine starting apparatus according to the embodiment of the present invention includes:
an obtaining module 10, configured to obtain a target driving demand power and an available power of an electrical system of a vehicle;
an electric drive power determination module 20 for determining an electric drive power from said electrical system available power and accessory use power;
an ignition target rotating speed determination module 30, configured to determine an ignition target rotating speed according to the current temperature and the available power of the electrical system when the electric drive power is smaller than the target drive required power;
and the starting module 40 is used for starting the vehicle engine according to the ignition target rotating speed.
The method comprises the steps of obtaining target driving required power and available power of an electric system of a vehicle; determining an electrical drive power from the electrical system available power and the accessory use power; when the electric drive power is smaller than the target drive demand power, determining an ignition target rotating speed according to the current temperature and the available power of the electric system; and starting the vehicle engine according to the ignition target rotating speed. Since the present embodiment is to determine the ignition target rotational speed according to the current temperature and the electric system available power when the electric drive power is less than the target drive required power; and starting the vehicle engine according to the ignition target rotating speed. Compared with the existing mode of starting the vehicle engine according to the fixed ignition rotating speed, the mode of the embodiment can determine the ignition target rotating speed according to the current temperature and the available power of the electric system, and improves the starting efficiency of the engine.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not elaborated in this embodiment may refer to the engine starting method provided by any embodiment of the present invention, and are not described herein again.
A second embodiment of the engine starting apparatus of the present invention is proposed based on the above-described first embodiment of the engine starting apparatus of the present invention.
In this embodiment, the ignition target rotation speed determination module 30 is further configured to obtain a current ambient temperature; determining a first ignition rotating speed according to the current environment temperature; determining a second ignition speed according to the available power of the electric system; and determining an ignition target rotating speed according to the first ignition rotating speed and the second ignition rotating speed.
Further, the ignition target rotation speed determining module 30 is further configured to use a preset first calibration rotation speed as a second ignition rotation speed when the available power of the electrical system is greater than or equal to a preset first power; when the available power of the electric system is smaller than or equal to a preset second power, taking a preset second calibration rotating speed as the second ignition rotating speed; and when the available power of the electric system is greater than the preset second power and less than the preset first power, determining the second ignition rotating speed according to a preset gradient algorithm.
Further, the obtaining module 10 is further configured to obtain a current vehicle speed and an accelerator opening of the vehicle; determining a target torque of the vehicle according to the current vehicle speed and the opening degree of an accelerator pedal; and determining the target driving required power of the vehicle according to the target torque and the current vehicle speed.
Further, the electric drive power determining module 20 is further configured to obtain the usage power corresponding to each power consumption component in the vehicle in the usage state; determining accessory use power according to the use power; the electric drive power is obtained by subtracting the accessory use power from the electrical system available power.
Further, the starting module 40 is further configured to start a preset timer to start timing; if the engine is not started successfully when the timing is finished, acquiring a third ignition rotating speed; and starting the vehicle engine according to the third ignition rotating speed.
Further, the starting module 40 is further configured to stop starting the vehicle engine and send a preset alarm prompt when the number of times of failure of starting the vehicle engine according to the third ignition rotating speed reaches a preset number.
Other embodiments or specific implementation manners of the engine starting device of the present invention may refer to the above method embodiments, and are not described herein again.
Furthermore, an embodiment of the present invention also proposes a storage medium having an engine starting program stored thereon, which when executed by a processor implements the steps of the engine starting method as described above.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., a rom/ram, a magnetic disk, an optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An engine starting method characterized by comprising the steps of:
acquiring target driving required power and available power of an electric system of the vehicle;
determining an electrical drive power from the electrical system available power and the accessory use power;
when the electric drive power is smaller than the target drive demand power, determining an ignition target rotating speed according to the current temperature and the available power of the electric system;
and starting the vehicle engine according to the ignition target rotating speed.
2. An engine starting method as set forth in claim 1, wherein said step of determining an ignition target speed based on a current temperature and available power of said electrical system comprises:
acquiring the current environment temperature;
determining a first ignition rotating speed according to the current environment temperature;
determining a second ignition speed according to the available power of the electric system;
and determining an ignition target rotating speed according to the first ignition rotating speed and the second ignition rotating speed.
3. An engine starting method as set forth in claim 2 wherein said step of determining a second firing rate based on said electrical system available power comprises:
when the available power of the electric system is greater than or equal to the preset first power, taking the preset first calibration rotating speed as a second ignition rotating speed;
when the available power of the electric system is smaller than or equal to a preset second power, taking a preset second calibration rotating speed as the second ignition rotating speed;
and when the available power of the electric system is greater than the preset second power and less than the preset first power, determining the second ignition rotating speed according to a preset gradient algorithm.
4. The engine starting method according to claim 1, wherein the step of obtaining the target driving demand power of the vehicle includes:
acquiring the current speed and the opening degree of an accelerator pedal of a vehicle;
determining a target torque of the vehicle according to the current vehicle speed and the opening degree of an accelerator pedal;
and determining the target driving required power of the vehicle according to the target torque and the current vehicle speed.
5. The engine starting method of claim 1, wherein said step of determining electric drive power based on said electrical system available power and accessory use power comprises:
acquiring the use power corresponding to each power consumption component in a use state in the vehicle;
determining accessory use power according to the use power;
the electric drive power is obtained by subtracting the accessory use power from the electrical system available power.
6. The engine starting method as set forth in any one of claims 1-5, characterized in that after the step of starting the vehicle engine in accordance with the ignition target speed, it further includes:
starting a preset timer to start timing;
if the engine is not started successfully when the timing is finished, acquiring a third ignition rotating speed;
and starting the vehicle engine according to the third ignition rotating speed.
7. An engine starting method as set forth in claim 6, characterized in that after said step of starting the vehicle engine in accordance with said third ignition speed, it further comprises:
and when the failure times of starting the vehicle engine according to the third ignition rotating speed reach preset times, stopping starting the vehicle engine and sending a preset alarm prompt.
8. An engine starting device, characterized by comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring target driving required power and electric system available power of a vehicle;
an electric drive power determination module for determining an electric drive power from the electrical system available power and the accessory use power;
the ignition target rotating speed determining module is used for determining an ignition target rotating speed according to the current temperature and the available power of the electric system when the electric driving power is smaller than the target driving required power;
and the starting module is used for starting the vehicle engine according to the ignition target rotating speed.
9. An engine starting apparatus, characterized in that the apparatus comprises: a memory, a processor, and an engine start program stored on the memory and executable on the processor, the engine start program configured to implement the steps of the engine starting method of any one of claims 1 to 7.
10. A storage medium having stored thereon an engine starting program, which when executed by a processor implements the steps of the engine starting method of any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210679331.7A CN115163368A (en) | 2022-06-15 | 2022-06-15 | Engine starting method, device, equipment and storage medium |
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| CN202210679331.7A CN115163368A (en) | 2022-06-15 | 2022-06-15 | Engine starting method, device, equipment and storage medium |
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| CN115163368A true CN115163368A (en) | 2022-10-11 |
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| CN202210679331.7A Pending CN115163368A (en) | 2022-06-15 | 2022-06-15 | Engine starting method, device, equipment and storage medium |
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