CN114810367A

CN114810367A - Variable valve control method and device for vehicle, vehicle and storage medium

Info

Publication number: CN114810367A
Application number: CN202210474578.5A
Authority: CN
Inventors: 苗志慧; 张慧峰; 孙鹏远; 宋同好; 齐儒赞; 周鑫; 张波; 苍贺成; 时宪; 陈昊
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-07-29

Abstract

The invention discloses a variable valve control method and device for a vehicle, the vehicle and a storage medium. The method comprises the following steps: initializing a connection mark of an electromagnetic valve, and acquiring current position information of an air inlet camshaft and current position information of an exhaust camshaft; sending a first angle command to a variable valve timing air inlet control valve, and reading first position information of an air inlet camshaft and second position information of an exhaust camshaft; sending a second angle instruction to the variable valve timing exhaust control valve, and reading third position information of the intake camshaft and fourth position information of the exhaust camshaft; determining a connection mark of the electromagnetic valve; the variable valve timing intake control valve and the variable valve timing exhaust control valve are controlled to perform variable valve timing operation based on the connection flag of the electromagnetic valve. Namely, the electromagnetic valve is controlled to work through the connection mark of the electromagnetic valve, and the normal operation of the variable valve timing function is guaranteed when the intake and exhaust camshaft control passage is not normally installed or connected.

Description

Variable valve control method and device for vehicle, vehicle and storage medium

Technical Field

The embodiment of the invention relates to computer technology, in particular to a variable valve control method and device for a vehicle, the vehicle and a storage medium.

Background

The variable valve timing technology of the engine in the vehicle adjusts an engine cam by using a control and execution system equipped in the vehicle according to the working condition of the engine, so that the opening and closing time of a valve is changed along with the rotating speed of the engine, thereby improving the charging efficiency and the engine power. In order to implement the variable valve timing technology of the engine in the vehicle, it is necessary to construct a variable valve timing system from an electromagnetic valve (OCV), which is an oil control valve for the valve timing of the engine, and a variable camshaft phase adjuster (VCT), which allows the intake air amount to vary with the engine speed by adjusting the oil supply and the engine cam phase. In actual work, because the interface of the variable valve timing valve adopts a unified standard, when an engine electronic control unit and an electromagnetic valve are connected, the situation that an OCV valve for controlling air intake and an OCV valve for controlling air exhaust are reversely connected often occurs, so that the control of an air intake camshaft and an air exhaust camshaft is disordered, and the variable valve timing function is failed through fault diagnosis and judgment.

Disclosure of Invention

The invention provides a variable valve control method and device for a vehicle, the vehicle and a storage medium, which are used for controlling the work of an electromagnetic valve by a connection mark of the electromagnetic valve and ensuring the normal operation of the function of a variable valve.

In a first aspect, an embodiment of the present invention provides a variable valve control method for a vehicle, the vehicle including an engine electronic control unit, a solenoid valve, an intake camshaft, an exhaust camshaft, and an engine, the engine electronic control unit being connected to one end of the intake camshaft and one end of the exhaust camshaft through the solenoid valve, respectively, and the other end of the intake camshaft and the other end of the exhaust camshaft being connected to the engine, the method being performed by the engine electronic control unit, the method including:

initializing a connection mark of the electromagnetic valve, and acquiring current position information of the intake camshaft and current position information of the exhaust camshaft, wherein the electromagnetic valve comprises a variable valve timing intake control valve and a variable valve timing exhaust control valve;

sending a first angle command to the variable valve timing intake control valve, and reading first position information of the intake camshaft and second position information of the exhaust camshaft after the variable valve timing intake control valve executes the first angle command;

sending a second angle command to the variable valve timing exhaust control valve, and reading third position information of the intake camshaft and fourth position information of the exhaust camshaft after the variable valve timing exhaust control valve executes the second angle command;

determining the installation position of the variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve according to the current position information of the intake camshaft, the current position information of the exhaust camshaft, the first position information, the second position information, the third position information, and the fourth position information, and determining the connection flag of the solenoid valve according to the installation position of the variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve;

and controlling the variable valve timing intake control valve and the variable valve timing exhaust control valve to perform variable valve timing operation based on a connection flag of the electromagnetic valve.

In a second aspect, an embodiment of the present invention further provides a variable valve control apparatus for a vehicle, the vehicle including an engine electronic control unit, a solenoid valve, an intake camshaft, an exhaust camshaft, and an engine, the engine electronic control unit being connected to one end of the intake camshaft and one end of the exhaust camshaft through the solenoid valve, respectively, and the other end of the intake camshaft and the other end of the exhaust camshaft being connected to the engine, the apparatus being applied to the engine electronic control unit, the apparatus including:

the information acquisition module is used for initializing a connection mark of the electromagnetic valve and acquiring the current position information of the intake camshaft and the current position information of the exhaust camshaft, wherein the electromagnetic valve comprises a variable valve timing intake control valve and a variable valve timing exhaust control valve;

the first sending module is used for sending a first angle instruction to the variable valve timing intake control valve and reading first position information of the intake camshaft and second position information of the exhaust camshaft after the variable valve timing intake control valve executes the first angle instruction;

the second sending module is used for sending a second angle instruction to the variable valve timing exhaust control valve and reading third position information of the intake camshaft and fourth position information of the exhaust camshaft after the variable valve timing exhaust control valve executes the second angle instruction;

a flag determination module configured to determine an installation position of the variable valve timing intake control valve and an installation position of the variable valve timing exhaust control valve based on current position information of the intake camshaft, current position information of the exhaust camshaft, the first position information, the second position information, the third position information, and the fourth position information, and determine a connection flag of the solenoid valve based on the installation position of the variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve;

and the valve control module is used for controlling the variable valve timing intake control valve and the variable valve timing exhaust control valve to work at variable valve timing based on the connection mark of the electromagnetic valve.

In a third aspect, an embodiment of the present invention further provides a vehicle, including:

one or more processors;

a storage device for storing one or more programs,

when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the variable valve control method of the vehicle.

In a fourth aspect, embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the variable valve control method of a vehicle.

In the embodiment of the invention, the current position information of an air inlet camshaft and the current position information of an exhaust camshaft are obtained by initializing the connection mark of an electromagnetic valve, wherein the electromagnetic valve comprises a variable valve timing air inlet control valve and a variable valve timing exhaust control valve; sending a first angle instruction to a variable valve timing air inlet control valve, and reading first position information of an air inlet camshaft and second position information of an exhaust camshaft after the variable valve timing air inlet control valve executes the first angle instruction; sending a second angle instruction to the variable valve timing exhaust control valve, and reading third position information of the intake camshaft and fourth position information of the exhaust camshaft after the variable valve timing exhaust control valve executes the second angle instruction; determining the installation position of a variable valve timing air inlet control valve and the installation position of a variable valve timing exhaust control valve according to the current position information of an air inlet camshaft, the current position information of an exhaust camshaft, the first position information, the second position information, the third position information and the fourth position information, and determining a connection mark of an electromagnetic valve according to the installation position of the variable valve timing air inlet control valve and the installation position of the variable valve timing exhaust control valve; the variable valve timing intake control valve and the variable valve timing exhaust control valve are controlled to perform variable valve timing operation based on the connection flag of the electromagnetic valve. Specifically, after the connection flag of the electromagnetic valve is initialized, the first angle command and the second angle command are used for testing, the installation position of the variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve are determined, the connection flag of the electromagnetic valve is determined according to the installation position of the actual variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve, the variable valve timing intake control valve and the variable valve timing exhaust control valve in the electromagnetic valve are controlled to work by using the connection flag of the electromagnetic valve, and when the intake and exhaust camshaft control passage is not normally installed or connected, the normal operation of the variable valve timing function can be further ensured.

Drawings

FIG. 1 is a schematic flow chart diagram of a variable valve control method for a vehicle according to an embodiment of the present invention;

FIG. 2 is another schematic flow chart diagram of a variable valve control method of a vehicle according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a connection flag of a solenoid valve for variable valve control release of a vehicle according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a variable valve control apparatus of a vehicle according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a vehicle according to an 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.

Fig. 1 is a schematic flowchart of a variable valve control method for a vehicle according to an embodiment of the present invention, which may be implemented by a variable valve control apparatus for a vehicle according to an embodiment of the present invention, and the apparatus may be implemented in software and/or hardware. In a specific embodiment, the device can be integrated in a vehicle, the vehicle comprises an engine electronic control unit, a solenoid valve, an air inlet camshaft, an air outlet camshaft and an engine, the engine electronic control unit is respectively connected with one end of the air inlet camshaft and one end of the air outlet camshaft through the solenoid valve, and the other end of the air inlet camshaft and the other end of the air outlet camshaft are connected with the engine. The following embodiments will be described by taking an example in which the apparatus is integrated in a vehicle and is executed by an engine electronic control unit, and referring to fig. 1, the method may specifically include the following steps:

s110, initializing a connection mark of an electromagnetic valve, and acquiring current position information of an intake camshaft and current position information of an exhaust camshaft, wherein the electromagnetic valve comprises a variable valve timing intake control valve and a variable valve timing exhaust control valve;

for example, the electromagnetic valve may be a regulating valve between an engine electronic control unit and an engine on a vehicle for controlling the phase of an intake camshaft and an exhaust camshaft. Wherein the electromagnetic valve includes a variable valve timing intake control valve and a variable valve timing exhaust control valve. The variable valve timing air inlet control valve is connected with the engine electronic control unit and used for receiving an air inlet instruction sent by the engine electronic control unit and controlling the variable valve timing air inlet control valve to adjust engine oil supply according to the air inlet instruction sent by the engine electronic control unit so as to adjust the phase of an engine air inlet camshaft, so that the air inlet amount can be changed according to the change of the rotating speed of the engine; the variable valve timing exhaust control valve is connected with the engine electronic control unit and used for receiving an exhaust instruction sent by the engine electronic control unit and controlling the variable valve timing exhaust control valve to adjust oil supply according to the exhaust instruction sent by the engine electronic control unit so as to adjust the phase of an engine exhaust camshaft, so that the exhaust amount can be changed according to the change of the rotating speed of the engine. The camshaft is a component on the engine for controlling the opening and closing actions of the engine valves, wherein the intake camshaft may be a camshaft on the engine for controlling the opening and closing actions of the engine intake valves, and the exhaust camshaft may be a camshaft on the engine for controlling the opening and closing actions of the engine exhaust valves, wherein the intake camshaft and the exhaust camshaft may be hung on a transmission wheel. The current position information of the intake camshaft may be position information of the current intake camshaft for realizing the function and the connection mode of the intake camshaft; the current position information of the exhaust camshaft may be the current position information of the exhaust camshaft in order to implement the function and the connection manner of the exhaust camshaft. The connection marks of the electromagnetic valve may be position marks at which the variable valve timing intake control valve and the variable valve timing exhaust control valve in the electromagnetic valve are respectively connected to the engine electronic control unit.

Such as: the connection marks of the electromagnetic valves can be 1, 2 and 0, the connection mark of the electromagnetic valve is 1, which indicates that the electromagnetic valve is in positive connection with the engine electric control unit, namely the connection meets the design requirement and can be that an air inlet camshaft control signal output pin of the engine electric control unit is connected with an air inlet camshaft through a variable valve timing air inlet control valve and an air outlet camshaft control signal output pin of the engine electric control unit is connected with an air outlet camshaft through a variable valve timing air outlet control valve; the connection mark of the electromagnetic valve is 2, which indicates that the electromagnetic valve is connected with the engine electric control unit in a reverse position, and the connection does not meet the design requirement, namely an air inlet camshaft control signal output pin of the engine electric control unit is connected with an exhaust camshaft through a variable valve timing exhaust control valve and an exhaust camshaft control signal output pin of the engine electric control unit is connected with the air inlet camshaft through the variable valve timing air inlet control valve; the connection mark of the electromagnetic valve is 0, which indicates that the electromagnetic valve is connected with the engine electronic control unit to identify abnormity, and the current connection is in a positive position or a reverse position.

In the specific implementation, the connection flag of the electromagnetic valve is initialized, and may be set to 0, and the engine electronic control unit acquires the current position information of the intake camshaft and the position information of the exhaust camshaft between the engine electronic control unit and the engine.

In the embodiment of the invention, the precondition for initializing the connection mark of the electromagnetic valve and acquiring the current position information of the intake camshaft and the current position information of the exhaust camshaft can be to determine whether the engine electric control unit is powered on for the first time, and when the engine electric control unit is powered on for the first time, the connection mark of the electromagnetic valve can be reset or unclear and needs to be initialized; or whether the power supply of the storage battery is interrupted or not can be judged, and when the power supply of the storage battery is interrupted, the connection mark of the electromagnetic valve can be reset or unclear and needs to be initialized; or whether the cabin cover signal is opened in the last cycle or the current cycle or not CAN be acquired from the CAN bus, and when the cabin cover signal is opened in the last cycle or the current cycle, the connection mark of the electromagnetic valve CAN be reset or unclear and needs to be initialized. If the preconditions are all not generated, the connection mark of the electromagnetic valve can be directly obtained from the memory information.

S120, sending a first angle command to the variable valve timing intake control valve, and reading first position information of an intake camshaft and second position information of an exhaust camshaft after the variable valve timing intake control valve executes the first angle command;

for example, the first angle command may be a test control command sent by the engine electronic control unit to the variable valve timing intake control valve, and is used to adjust the phase of the intake camshaft to the target position information corresponding to the first angle command, where the first angle command is used to control the variable valve timing intake control valve, and thus adjust the phase of the intake camshaft, and has no control effect on the exhaust camshaft. The first position information of the intake camshaft may be position information of an intake camshaft phase that the variable valve timing intake control valve executes the first angle command. The second position information of the exhaust camshaft may be position information of the phase of the exhaust camshaft that is obtained by the variable valve timing intake control valve executing the first angle command.

In the specific implementation, an engine electronic control unit sends a first angle instruction to a variable valve timing intake control valve, after the variable valve timing intake control valve executes the first angle instruction, first position information of an intake camshaft and second position information of an exhaust camshaft are read, whether the variable valve timing intake control valve can reach the position of target position information corresponding to the first angle instruction can be determined by using the first position information of the intake camshaft, whether the exhaust camshaft can change according to the first angle instruction can be determined by using the second position information of the exhaust camshaft and current position information of the exhaust camshaft, so that the positive connection between the variable valve timing intake control valve and the intake camshaft can be tested, the intake camshaft can move according to the instruction of the engine electronic control unit, and whether the exhaust camshaft can be influenced by the first angle instruction can be tested at the same time, the control of the electric valve by the engine electric control unit is influenced.

S130, sending a second angle command to the variable valve timing exhaust control valve, and reading third position information of the intake camshaft and fourth position information of the exhaust camshaft after the variable valve timing exhaust control valve executes the second angle command;

for example, the second angle command may be a test control command sent by the engine electronic control unit to the variable valve timing exhaust control valve, and is used to adjust the phase of the exhaust camshaft to the target position information corresponding to the second angle command, where the second angle command is used to control the variable valve timing exhaust control valve, and thus adjust the phase of the exhaust camshaft, and has no control effect on the intake camshaft. The fourth position information of the exhaust camshaft may be position information of the exhaust camshaft phase that the variable valve timing exhaust control valve executes the second angle command. The third position information of the intake camshaft may be position information of the intake camshaft phase at which the variable valve timing exhaust control valve executes the second angle command.

In the specific implementation, the engine electric control unit sends a second angle instruction to the variable valve timing exhaust control valve, after the variable valve timing exhaust control valve executes the second angle instruction, the third position information of the intake camshaft and the fourth position information of the exhaust camshaft are read, whether the variable valve timing exhaust control valve can reach the position of the target position information corresponding to the second angle instruction can be determined by using the fourth position information of the exhaust camshaft, whether the intake camshaft can change according to the second angle instruction can be determined by using the third position information of the intake camshaft and the first position information of the intake camshaft, so that the positive connection between the variable valve timing exhaust control valve and the engine electric control unit can be tested, the exhaust camshaft can move according to the instruction of the engine electric control unit, and simultaneously, whether the intake camshaft is influenced by the second angle instruction can be tested, the control of the electric valve by the engine electric control unit is influenced.

S140, determining the installation position of the variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve according to the current position information of the intake camshaft, the current position information of the exhaust camshaft, the first position information, the second position information, the third position information and the fourth position information, and determining the connection mark of the electromagnetic valve according to the installation position of the variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve;

for example, the mounting position of the variable valve timing intake control valve may be an actual connection position of the variable valve timing intake control valve with the engine electronic control unit, and the variable valve timing intake control valve may be command-controlled according to the actual connection position, that is, may be a mounting position of a connecting line that transmits a control command. The mounting position of the variable valve timing exhaust control valve may be an actual connection position of the variable valve timing exhaust control valve and the engine electronic control unit, and the variable valve timing exhaust control valve may be command-controlled according to the actual connection position, that is, may be a mounting position of a connection line that transmits a control command.

In specific implementation, the mounting position of the variable valve timing intake control valve is determined according to the target position information and the first position information of the first angle command, and whether the exhaust camshaft is influenced by the first angle command is determined according to the current position information and the second position information of the exhaust camshaft; and determining the installation position of the variable valve timing exhaust control valve according to the target position information and the fourth position information of the second angle command, and determining whether the air inlet camshaft is influenced by the second angle command or not according to the first position information and the third position information so as to determine the control accuracy of the engine electric control command on the electromagnetic valve. The connection flag of the electromagnetic valve is determined according to the mounting position of the variable valve timing intake control valve and the mounting position of the variable valve timing exhaust control valve. When the installation position of the variable valve timing air inlet control valve is in positive connection with the engine electronic control unit, and simultaneously when the installation position of the variable valve timing exhaust control valve is in positive connection with the engine electronic control unit, the connection mark of the electromagnetic valve is 1; when the installation position of the variable valve timing air inlet control valve is connected with the engine electronic control unit in a reversed position, and simultaneously, when the installation position of the variable valve timing exhaust control valve is connected with the engine electronic control unit in a reversed position, the connection mark of the electromagnetic valve is 2. When the failure of the solenoid valve test cannot be identified, the connection flag of the solenoid valve is 0.

And S150, controlling the variable valve timing air inlet control valve and the variable valve timing exhaust control valve to perform variable valve timing operation based on the connection mark of the electromagnetic valve.

In a specific implementation, the connection flag engine electronic control unit based on the electromagnetic valve controls the variable valve timing intake control valve and the variable valve timing exhaust control valve to perform variable valve timing operation, and may be a connection flag engine electronic control unit based on the electromagnetic valve controls the variable valve timing intake control valve and the variable valve timing exhaust control valve to perform variable valve timing operation, for example: when the connection mark of the electromagnetic valve is 1, the electromagnetic valve is in positive connection with the engine electronic control unit, and the instruction can be sent and executed according to a designed passage between the engine electronic control unit and the engine so as to control the opening and closing of the valve corresponding to the air inlet camshaft and the valve corresponding to the air outlet camshaft; when the connection mark of the electromagnetic valve is 2, the electromagnetic valve is connected with the electronic control unit of the engine in a reverse position, a designed passage between the electronic control unit of the engine and the engine can be exchanged to send and execute instructions so as to control the opening and closing of the valve corresponding to the air inlet camshaft and the valve corresponding to the air outlet camshaft; when the connection mark of the electromagnetic valve is 0, the electromagnetic valve is abnormally connected with the engine electronic control unit or cannot be identified, the connection mark fault of the electromagnetic valve can be reported, and the connection mark of the electromagnetic valve is stored when the engine electronic control unit is powered off.

In the embodiment of the invention, when the connection mark of the electromagnetic valve is 0, the electromagnetic valve is respectively abnormally connected with the air inlet camshaft and the air outlet camshaft or the connection mark of the electromagnetic valve cannot be identified, before the connection mark of the electromagnetic valve fails to be reported, the identification times of the connection mark of the electromagnetic valve can be preset according to experimental data and actual requirements, multiple cycles are carried out until the identification times of the connection mark of the electromagnetic valve is required to be preset, and then the connection mark of the electromagnetic valve fails to be reported.

In the embodiment of the invention, the current position information of an air inlet camshaft and the current position information of an exhaust camshaft are obtained by initializing the connection mark of an electromagnetic valve, wherein the electromagnetic valve comprises a variable valve timing air inlet control valve and a variable valve timing exhaust control valve; sending a first angle instruction to a variable valve timing air inlet control valve, and reading first position information of an air inlet camshaft and second position information of an exhaust camshaft after the variable valve timing air inlet control valve executes the first angle instruction; sending a second angle instruction to the variable valve timing exhaust control valve, and reading third position information of the intake camshaft and fourth position information of the exhaust camshaft after the variable valve timing exhaust control valve executes the second angle instruction; determining the installation position of a variable valve timing air inlet control valve and the installation position of a variable valve timing exhaust control valve according to the current position information of an air inlet camshaft, the current position information of an exhaust camshaft, the first position information, the second position information, the third position information and the fourth position information, and determining a connection mark of an electromagnetic valve according to the installation position of the variable valve timing air inlet control valve and the installation position of the variable valve timing exhaust control valve; the variable valve timing intake control valve and the variable valve timing exhaust control valve are controlled to perform variable valve timing operation based on the connection flag of the electromagnetic valve. Specifically, after the connection flag of the electromagnetic valve is initialized, the first angle command and the second angle command are used for testing, the installation position of the variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve are determined, the connection flag of the electromagnetic valve is determined according to the installation position of the actual variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve, the variable valve timing intake control valve and the variable valve timing exhaust control valve in the electromagnetic valve are controlled to work by using the connection flag of the electromagnetic valve, and the normal operation of the variable valve timing function is guaranteed when the intake and exhaust camshaft control passage is not normally installed and connected.

The variable valve control method provided by the embodiment of the present invention is further described below, and as shown in fig. 2, the method may specifically include the following steps:

s210, initializing a connection mark of an electromagnetic valve, and acquiring current position information of an intake camshaft and current position information of an exhaust camshaft, wherein the electromagnetic valve comprises a variable valve timing intake control valve and a variable valve timing exhaust control valve;

s220, sending a first angle command to the variable valve timing intake control valve, and reading first position information of an intake camshaft and second position information of an exhaust camshaft after the variable valve timing intake control valve executes the first angle command;

s230, sending a second angle command to the variable valve timing exhaust control valve, and reading third position information of the intake camshaft and fourth position information of the exhaust camshaft after the variable valve timing exhaust control valve executes the second angle command;

s240, determining the installation position of the variable valve timing air inlet control valve according to the current position information of the exhaust camshaft, the current position information of the air inlet camshaft, the target position information corresponding to the first angle instruction, the first position information and the second position information;

in a specific implementation, the mounting position of the variable valve timing intake control valve is determined based on the target position information and the first position information of the first angle command, and whether the exhaust camshaft is affected by the first angle command is determined based on the current position information and the second position information of the exhaust camshaft.

Further, determining the installation position of the variable valve timing intake control valve according to the current position information of the exhaust camshaft, the target position information corresponding to the first angle command of the current position information of the intake camshaft, the first position information and the second position information comprises:

determining a first position difference value according to the target position information corresponding to the first angle instruction and the first position information, and determining whether the current position information of the exhaust camshaft is the same as the second position information;

and when the current position information of the exhaust camshaft is the same as the second position information and the difference value of the first position is smaller than a preset first threshold value, the installation position of the variable valve timing intake control valve is in positive connection with the engine electronic control unit.

For example, the first difference value may be an angular difference value between a position corresponding to the target position information corresponding to the first angle command and a position corresponding to the first position information for determining a degree of coincidence of the position corresponding to the target position information corresponding to the first angle command and the position corresponding to the first position information, and the control sensitivity of the first angle command for the intake camshaft with the variable valve timing intake control valve may be determined by the degree of coincidence of the position corresponding to the target position information corresponding to the first angle command and the position corresponding to the first position information. The preset first threshold may be an error range threshold of the intake camshaft position executed by the first angle command set according to actual demand and experimental data.

In the specific implementation, the first position difference value is obtained by calculating the angle difference value between the position corresponding to the target position information corresponding to the first angle command and the position corresponding to the first position information, and whether the first angle command affects the variable valve timing exhaust control valve to change the phase position of the exhaust camshaft is determined by determining whether the current position information of the exhaust camshaft is the same as the second position information. When the current position information of the exhaust camshaft is the same as the second position information and the difference value of the first position is smaller than a preset first threshold value, the fact that the coincidence degree of the position corresponding to the target position information corresponding to the first angle instruction and the position corresponding to the first position information is within an error range threshold value is indicated, the first angle instruction does not affect the variable valve timing exhaust control valve to change the phase position of the exhaust camshaft, and the installation position of the variable valve timing intake control valve is in positive connection with an engine electronic control unit.

Further, after determining whether the current position information of the exhaust camshaft is the same as the second position information, the method further includes:

when the current position information of the exhaust camshaft is different from the second position information, determining whether the current position information of the intake camshaft is the same as the first position information;

when the current position information of the air inlet camshaft is the same as the first position information, determining a third position difference value according to the second position information and the current position information of the exhaust camshaft;

determining whether the third position difference value is larger than a preset third threshold value;

and when the third position difference value is greater than a preset third threshold value, the mounting position of the variable valve timing air inlet control valve is connected with the electronic control unit of the engine in a reverse position mode.

For example, the third position difference value may be an angle difference value of a position corresponding to the second position information of the exhaust camshaft and a position corresponding to the current position information of the exhaust camshaft according to the first angle command for determining a degree of coincidence of the position corresponding to the second position information and the position corresponding to the current position information of the exhaust camshaft, and whether the first angle command has an influence on the variable valve timing exhaust control valve may be determined by means of the degree of coincidence of the position corresponding to the second position information and the position corresponding to the current position information of the exhaust camshaft. The preset third threshold may be an error range threshold of the exhaust camshaft position executed by the first angle command set according to actual demands and experimental data.

In specific implementation, whether the first angle instruction influences the variable valve timing exhaust control valve to change the phase position of the exhaust camshaft is determined by determining whether the current position information of the exhaust camshaft is the same as the second position information; when the current position information of the exhaust camshaft is different from the second position information, the first angle command is indicated to have an effect on the variable valve timing exhaust control valve to change the phase position of the exhaust camshaft. Whether the current position information of the intake camshaft is the same as the first position information or not needs to be further judged, whether the first angle instruction has an adjusting effect on the intake camshaft or not is determined, when the position corresponding to the current position information of the intake camshaft is the same as the position corresponding to the first position information, the first angle instruction does not have an adjusting effect on the intake camshaft, and a third position difference value needs to be obtained by calculating an angle difference value between the position corresponding to the second position information and the position corresponding to the current position information of the exhaust camshaft. And comparing the third position difference value with a preset third threshold value, and determining whether the exhaust camshaft executes the first angle instruction to enable the exhaust camshaft to exceed the range of the preset third threshold value, wherein the first angle instruction cannot control the rotation of the intake camshaft but can control the rotation of the exhaust camshaft, and the installation position of the variable valve timing intake control valve is connected with the engine electronic control unit in a reverse position mode.

And S250, determining the installation position of the variable valve timing exhaust control valve according to the target position information, the third position information and the fourth position information corresponding to the first position information and the second angle command.

In the specific implementation, the installation position of the variable valve timing exhaust control valve is determined according to the target position information and the fourth position information of the second angle instruction, and whether the air inlet cam shaft is influenced by the second angle instruction is determined according to the first position information and the third position information, so that the control accuracy of the engine electric control instruction on the electromagnetic valve is determined.

Further, determining the mounting position of the variable valve timing exhaust control valve based on the target position information corresponding to the first position information and the second angle command, the third position information, and the fourth position information includes:

determining a second position difference value according to the target position information and the fourth position information corresponding to the second angle instruction, and determining whether the first position information and the third position information are the same;

and when the first position information is the same as the third position information and the second position difference is smaller than a preset second threshold value, the installation position of the variable valve timing exhaust control valve is in positive connection with the engine electronic control unit.

For example, the second position difference value may be an angle difference value between a target position information corresponding position corresponding to the second angle command and a fourth position information corresponding position for determining a degree of coincidence between the target position information corresponding position corresponding to the second angle command and the fourth position information corresponding position, and the control sensitivity of the second angle command for the exhaust camshaft using the variable valve timing exhaust control valve may be determined by the degree of coincidence between the target position information corresponding position corresponding to the second angle command and the fourth position information corresponding position. The preset second threshold may be an error range threshold of the exhaust camshaft position executed by the second angle command set according to actual demands and experimental data.

In the specific implementation, the second position difference value is obtained by calculating the angle difference value between the position corresponding to the target position information corresponding to the second angle command and the position corresponding to the fourth position information, and whether the second angle command affects the variable valve timing intake control valve to change the phase position of the intake camshaft is determined by determining whether the first position information is the same as the third position information. When the first position information is the same as the third position information and the second position difference value is smaller than a preset second threshold value, the coincidence degree of the position corresponding to the target position information corresponding to the second angle instruction and the position corresponding to the fourth position information is within an error range value corresponding to the preset second threshold value, the second angle instruction does not influence the variable valve timing intake control valve to change the phase position of the intake camshaft, and the installation position of the variable valve timing exhaust control valve is in positive connection with the engine electric control unit.

Further, after determining whether the first location information is the same as the third location information, the method further includes:

when the first position information is determined to be different from the third position information, determining a fourth position difference value according to the third position information and the first position information, and determining whether the second position information is the same as the fourth position information;

when the second position information and the fourth position information are the same, determining whether the fourth position difference value is larger than a preset fourth threshold value;

and when the fourth position difference value is larger than a preset fourth threshold value, the installation position of the variable valve timing exhaust control valve is connected with the electronic control unit of the engine in a reverse position mode.

For example, the fourth position difference value may be an angle difference value of the second angle command to a position of the intake camshaft corresponding to the third position information and corresponding to the first position information for determining a degree of coincidence of the position corresponding to the third position information and corresponding to the first position information, and whether or not the second angle command has an influence on the variable valve timing intake control valve may be determined by the degree of coincidence of the position corresponding to the third position information and corresponding to the first position information. The preset fourth threshold may be an error range threshold of the intake camshaft position executed by the second angle command set according to actual demand and experimental data.

In specific implementation, whether the second angle instruction influences the variable valve timing air inlet control valve to change the phase position of the air inlet camshaft is determined by determining whether the first position information and the third position information are the same; and when the first position information is different from the third position information, the second angle instruction is shown to influence the variable valve timing air inlet control valve to change the phase position of the air inlet camshaft. It is further determined whether the second position information is the same as the fourth position information, whether the second angle command has an adjusting effect on the exhaust camshaft, when the second position information corresponding position of the exhaust camshaft is the same as the fourth position information corresponding position, the second angle command has no regulating effect on the exhaust camshaft, a fourth position difference value is obtained by calculating an angle difference value between a position corresponding to the second position information and a position corresponding to the fourth position information, the fourth position difference value is compared with a preset fourth threshold value to determine whether the intake camshaft executes the second angle command to enable the exhaust camshaft to exceed the preset fourth threshold value range, it means that the second angle command cannot control the rotation of the exhaust camshaft but can control the rotation of the intake camshaft, and the mounting position of the variable valve timing exhaust control valve is determined to be connected with the reverse position of the engine electronic control unit.

S260, determining a connection mark of the electromagnetic valve according to the installation position of the variable valve timing air inlet control valve and the installation position of the variable valve timing exhaust control valve;

further, determining a connection flag of the solenoid valve according to the mounting position of the variable valve timing intake control valve and the mounting position of the variable valve timing exhaust control valve includes:

when the installation position of the variable valve timing air inlet control valve is in positive connection with the engine electronic control unit and the installation position of the variable valve timing exhaust control valve is in positive connection with the engine electronic control unit, the connection mark of the electromagnetic valve is a positive mark;

when the installation position of the variable valve timing air inlet control valve is connected with the engine electronic control unit in a reverse position and the installation position of the variable valve timing exhaust control valve is connected with the engine electronic control unit in a reverse position, the connection mark of the electromagnetic valve is a reverse position mark.

In the specific implementation, the installation position of the variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve determine the numerical value on the connection mark of the electromagnetic valve, and when the installation position of the variable valve timing intake control valve is in positive connection with the engine electronic control unit and the installation position of the variable valve timing exhaust control valve is in positive connection with the engine electronic control unit, the connection mark of the electromagnetic valve is a positive mark; when the installation position of the variable valve timing air inlet control valve is connected with the engine electronic control unit in a reverse position and the installation position of the variable valve timing exhaust control valve is connected with the engine electronic control unit in a reverse position, the connection mark of the electromagnetic valve is a reverse position mark. When the electromagnetic valve is abnormally connected with the engine electric control unit or cannot be identified, the fault of the connection mark of the electromagnetic valve can be reported, and the connection mark of the electromagnetic valve is stored when the engine electric control unit is powered off. The positive mark and the negative mark can be preset marks for distinguishing different connection modes according to actual requirements and experimental data.

And S270, controlling the variable valve timing air inlet control valve and the variable valve timing air outlet control valve to work at variable valve timing based on the connection mark of the electromagnetic valve.

Fig. 3 is a schematic diagram illustrating a principle of determining a connection flag of an electromagnetic valve in a variable valve control method according to an embodiment of the present invention, where as shown in fig. 3, the connection flag of the electromagnetic valve is initialized, current position information of an intake camshaft and current position information of an exhaust camshaft are obtained, a first angle command is sent to a variable valve timing intake control valve, and the first position information of the intake camshaft and the second position information of the exhaust camshaft are read; determining a first position difference value according to the target position information corresponding to the first angle instruction and the first position information, and determining whether the current position information of the exhaust camshaft is the same as the second position information; when the current position information of the exhaust camshaft is the same as the second position information, determining whether the first position difference value is smaller than a preset first threshold value, and when the first position difference value is smaller than the preset first threshold value, enabling the installation position of the variable valve timing intake control valve to be in positive connection with an engine electric control unit; and when the current position information of the intake camshaft is the same as the first position information, the installation position of the variable valve timing intake control valve is connected with the engine electronic control unit in an opposite position. A second angle command is sent to the variable valve timing exhaust control valve, and third position information of the intake camshaft and fourth position information of the exhaust camshaft are read. Determining a second position difference value according to target position information and fourth position information corresponding to the second angle instruction, determining whether the first position information is the same as the third position information, determining whether the second position difference value is smaller than a preset second threshold value when the first position information is the same as the third position information, and enabling the installation position of the variable valve timing exhaust control valve to be in positive connection with an engine electric control unit when the second position difference value is smaller than the preset second threshold value; and when the first position information is different from the third position information, determining a fourth position difference value according to the third position information and the first position information, determining whether the second position information is the same as the fourth position information, when the second position information is the same as the fourth position information, determining whether the fourth position difference value is larger than a preset fourth threshold value, and when the fourth position difference value is larger than the preset fourth threshold value, setting the installation position of the variable valve timing exhaust control valve to be in reverse connection with the engine electric control unit.

Fig. 4 is a schematic structural view of a variable valve control apparatus of a vehicle according to an embodiment of the present invention, and as shown in fig. 4, the variable valve control apparatus is applied to the vehicle including an engine electronic control unit, a solenoid valve, an intake camshaft, an exhaust camshaft, and an engine, the engine electronic control unit being connected to one end of the intake camshaft and one end of the exhaust camshaft through the solenoid valve, respectively, and the other end of the intake camshaft and the other end of the exhaust camshaft being connected to the engine, the apparatus being applied to the engine electronic control unit, and the variable valve control apparatus includes:

an information obtaining module 410, configured to initialize a connection flag of the electromagnetic valve, and obtain current position information of the intake camshaft and current position information of the exhaust camshaft, where the electromagnetic valve includes a variable valve timing intake control valve and a variable valve timing exhaust control valve;

a first sending module 420, configured to send a first angle command to the variable valve timing intake control valve, and read first position information of the intake camshaft and second position information of the exhaust camshaft after the variable valve timing intake control valve executes the first angle command;

a second sending module 430, configured to send a second angle command to the variable valve timing exhaust control valve, and read third position information of the intake camshaft and fourth position information of the exhaust camshaft after the variable valve timing exhaust control valve executes the second angle command;

a flag determination module 440 configured to determine an installation position of the variable valve timing intake control valve and an installation position of the variable valve timing exhaust control valve based on current position information of the intake camshaft, current position information of the exhaust camshaft, the first position information, the second position information, the third position information, and the fourth position information, and determine a connection flag of the solenoid valve based on the installation position of the variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve;

and a valve control module 450 for controlling the variable valve timing intake control valve and the variable valve timing exhaust control valve to perform variable valve timing operation based on the connection flag of the solenoid valve.

In one embodiment, the flag determination module 440 that determines the mounting position of the variable valve timing intake control valve and the mounting position of the variable valve timing exhaust control valve based on the current position information of the intake camshaft, the current position information of the exhaust camshaft, the first position information, the second position information, the third position information, and the fourth position information includes:

determining the installation position of the variable valve timing air inlet control valve according to the current position information of the exhaust camshaft, the current position information of the air inlet camshaft, the target position information corresponding to the first angle instruction, the first position information and the second position information;

and determining the installation position of the variable valve timing exhaust control valve according to the first position information, the target position information corresponding to the second angle command, the third position information and the fourth position information.

In one embodiment, the flag determination module 440, determining the installation position of the variable valve timing intake control valve based on the current position information of the exhaust camshaft, the current position information of the intake camshaft, the target position information corresponding to the first angle command, the first position information, and the second position information, includes:

determining a first position difference value according to target position information corresponding to the first angle command and the first position information, and determining whether the current position information of the exhaust camshaft is the same as the second position information;

and when the current position information of the exhaust camshaft is the same as the second position information and the first position difference value is smaller than a preset first threshold value, the installation position of the variable valve timing intake control valve is in positive connection with the engine electronic control unit.

In one embodiment, after the flag determination module 440 determines whether the current position information and the second position information of the exhaust camshaft are the same, the method further comprises:

determining whether the third position difference value is greater than a preset third threshold value;

and when the third position difference value is larger than a preset third threshold value, the installation position of the variable valve timing air inlet control valve is connected with the electronic control unit of the engine in a reverse position mode.

In one embodiment, the flag determination module 440 determines the mounting position of the variable valve timing exhaust control valve based on the first position information, the target position information corresponding to the second angle command, the third position information, and the fourth position information, including:

determining a second position difference value according to the target position information corresponding to the second angle instruction and the fourth position information, and determining whether the first position information is the same as the third position information;

and when the first position information is the same as the third position information and the second position difference value is smaller than a preset second threshold value, the installation position of the variable valve timing exhaust control valve is in positive connection with the engine electronic control unit.

In one embodiment, after the flag determining module 440 determines whether the first location information is the same as the third location information, the method further includes:

when the second position information is the same as the fourth position information, determining whether the fourth position difference value is greater than a preset fourth threshold value;

In one embodiment, the flag determining module 440 determines the connection flag of the solenoid valve according to the installation position of the variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve, including:

The device comprises an electromagnetic valve, a control valve and a control valve, wherein the electromagnetic valve comprises a variable valve timing air inlet control valve and a variable valve timing exhaust control valve; sending a first angle instruction to a variable valve timing air inlet control valve, and reading first position information of an air inlet camshaft and second position information of an exhaust camshaft after the variable valve timing air inlet control valve executes the first angle instruction; sending a second angle instruction to the variable valve timing exhaust control valve, and reading third position information of the intake camshaft and fourth position information of the exhaust camshaft after the variable valve timing exhaust control valve executes the second angle instruction; determining the installation position of a variable valve timing air inlet control valve and the installation position of a variable valve timing exhaust control valve according to the current position information of an air inlet camshaft, the current position information of an exhaust camshaft, the first position information, the second position information, the third position information and the fourth position information, and determining a connection mark of an electromagnetic valve according to the installation position of the variable valve timing air inlet control valve and the installation position of the variable valve timing exhaust control valve; the variable valve timing intake control valve and the variable valve timing exhaust control valve are controlled to perform variable valve timing operation based on the connection flag of the electromagnetic valve. Specifically, after the connection flag of the electromagnetic valve is initialized, the first angle command and the second angle command are used for testing, the installation position of the variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve are determined, the connection flag of the electromagnetic valve is determined according to the installation position of the actual variable valve timing intake control valve and the installation position of the variable valve timing exhaust control valve, the variable valve timing intake control valve and the variable valve timing exhaust control valve in the electromagnetic valve are controlled to work by using the connection flag of the electromagnetic valve, and the normal operation of the variable valve timing function is guaranteed when the intake and exhaust camshaft control passage is not normally installed or connected.

Fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the present invention. FIG. 5 illustrates a block diagram of an exemplary vehicle 12 suitable for use in implementing embodiments of the present invention. The vehicle 12 shown in fig. 5 is only an example and should not impose any limitations on the functionality and scope of use of embodiments of the present invention.

As shown in FIG. 5, the vehicle 12 is embodied in the form of a general purpose computing device. The components of the vehicle 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.

Bus 18 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, micro-channel architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.

The vehicle 12 typically includes a variety of computer system readable media. These media may be any available media that is accessible by the vehicle 12 and includes both volatile and nonvolatile media, removable and non-removable media.

The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. The vehicle 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 5, and commonly referred to as a "hard drive"). Although not shown in FIG. 5, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. System memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.

A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in system memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.

The vehicle 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), with one or more devices that enable a user to interact with the vehicle 12, and/or with any devices (e.g., network card, modem, etc.) that enable the vehicle 12 to communicate with one or more other computing devices. Such communication may be through an input/output (I/O) interface 22. Also, the vehicle 12 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via the network adapter 20. As shown in fig. 5, the network adapter 20 communicates with other modules of the vehicle 12 via the bus 18. It should be appreciated that although not shown in FIG. 5, other hardware and/or software modules may be used in conjunction with the vehicle 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.

The processing unit 16 executes various functional applications and data processing by executing programs stored in the system memory 28, and implements, for example, a variable valve control method of a vehicle according to an embodiment of the present invention, the method including:

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the program, when executed by a processor, implements a variable valve control method of a vehicle as described, the method including:

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 + +, or the like, as well as conventional procedural programming languages, such as the "C" programming language or similar programming languages. 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

1. A variable valve control method of a vehicle, the vehicle including an engine ecu, a solenoid valve, an intake camshaft, an exhaust camshaft, and an engine, the engine ecu being connected to one end of the intake camshaft and one end of the exhaust camshaft, respectively, through the solenoid valve, the other end of the intake camshaft and the other end of the exhaust camshaft being connected to the engine, the method being performed by the engine ecu, comprising:

determining the mounting position of the variable valve timing intake control valve and the mounting position of the variable valve timing exhaust control valve based on the current position information of the intake camshaft, the current position information of the exhaust camshaft, the first position information, the second position information, the third position information, and the fourth position information, and determining the flag of the electromagnetic valve based on the mounting position of the variable valve timing intake control valve and the mounting position of the variable valve timing exhaust control valve;

2. The method according to claim 1, wherein determining the mounting position of the variable valve timing intake control valve and the mounting position of the variable valve timing exhaust control valve based on the current position information of the intake camshaft, the current position information of the exhaust camshaft, the first position information, the second position information, the third position information, and the fourth position information includes:

3. The method according to claim 2, wherein determining the mounting position of the variable valve timing intake control valve based on the current position information of the exhaust camshaft, the current position information of the intake camshaft, target position information corresponding to the first angle command, the first position information, and the second position information includes:

4. The method of claim 3, after determining whether the current position information and the second position information of the exhaust camshaft are the same, further comprising:

5. The method according to claim 2, wherein determining the mounting position of the variable valve timing exhaust control valve based on the first position information, target position information corresponding to the second angle command, the third position information, and the fourth position information includes:

6. The method of claim 5, wherein determining whether the first location information and the third location information are the same further comprises:

7. The method according to claim 1, wherein determining the connection flag of the electromagnetic valve in accordance with the mounting position of the variable valve timing intake control valve and the mounting position of the variable valve timing exhaust control valve includes:

8. A variable valve control apparatus of a vehicle, the vehicle including an engine electronic control unit, a solenoid valve, an intake camshaft, an exhaust camshaft, and an engine, the engine electronic control unit being connected to one end of the intake camshaft and one end of the exhaust camshaft through the solenoid valve, respectively, the other end of the intake camshaft and the other end of the exhaust camshaft being connected to the engine, the apparatus being applied to the engine electronic control unit, comprising:

9. A vehicle, characterized in that the vehicle comprises:

one or more processors;

a storage device for storing one or more programs,

when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement a variable valve control method of a vehicle according to any one of claims 1 to 7.

10. A computer-readable storage medium on which a computer program is stored, characterized in that the program, when executed by a processor, implements a variable valve control method of a vehicle according to any one of claims 1 to 7.