CN114607517A - Oil pump state control method and device, vehicle and storage medium - Google Patents
Oil pump state control method and device, vehicle and storage medium Download PDFInfo
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- CN114607517A CN114607517A CN202210235745.0A CN202210235745A CN114607517A CN 114607517 A CN114607517 A CN 114607517A CN 202210235745 A CN202210235745 A CN 202210235745A CN 114607517 A CN114607517 A CN 114607517A
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- oil pump
- state
- fuel
- vehicle
- idling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The embodiment of the invention discloses an oil pump state control method and device, a vehicle and a storage medium. The method comprises the following steps: acquiring state information of each component of the vehicle; determining whether an oil pump of the vehicle is in an idling state based on the component state information; and starting an oil pump idling protection measure when the oil pump is in an idling state. Through the scheme of the embodiment of the invention, whether the vehicle oil pump is in an idling state or not can be judged, and protective measures are implemented on the oil pump in the idling state. When the oil pump idles to cause the temperature of the oil pump to be overhigh, the oil pump is prevented from being damaged due to overhigh temperature.
Description
Technical Field
The embodiment of the invention relates to the field of vehicle safety, in particular to an oil pump state control method and device, a vehicle and a storage medium.
Background
With the rapid increase of the number of new energy automobiles, the hybrid automobile gradually replaces the traditional fuel automobile and becomes the main body of the automobile market. The new energy automobile has the advantages that the driving motor and the engine are in a coupling state, so that the oil pump can be in an idling state when the oil tank is empty of fuel.
In conventional vehicle fuel pump control logic, if fuel is not present in the fuel tank, the engine control vehicle will stop the fuel pump when it detects that the engine speed is less than a predetermined threshold. In the hybrid electric vehicle, in a mode that the engine and the driving motor are driven in parallel, when the fuel tank is not filled with fuel, the engine is dragged backwards due to the coupling with the driving motor, so that the engine still has the rotating speed. Therefore, the conventional vehicle oil pump control logic can lead to long-time idling of the oil pump, so that the fuel pump has the risk of overheating and damage.
Disclosure of Invention
The invention provides an oil pump state control method, an oil pump state control device, a vehicle and a storage medium, which can prevent an oil pump from being damaged due to overhigh temperature when the oil pump idles to cause overhigh temperature.
In a first aspect, an embodiment of the present invention provides an oil pump state control method, including:
acquiring state information of each component of the vehicle;
determining whether an oil pump of the vehicle is in an idling state based on the component state information;
and starting an oil pump idling protection measure when the oil pump is in an idling state.
In a second aspect, an embodiment of the present invention further provides an oil pump state control device, including:
the information acquisition module is used for acquiring the state information of each component of the vehicle;
the state determining module is used for determining whether an oil pump of the vehicle is in an idling state or not based on the state information of each component;
and the measure starting module is used for starting the oil pump idling protection measure when the oil pump is in an idling state.
In a third aspect, an embodiment of the present invention further provides a vehicle, including:
one or more processors;
a memory 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 oil pump status control method as provided by any embodiment of the invention.
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 oil pump state control method as provided in any of the embodiments of the present invention.
In the embodiment of the invention, the state information of each component of the vehicle is acquired; determining whether an oil pump of the vehicle is in an idling state based on the component state information; and starting an oil pump idling protection measure when the oil pump is in an idling state. Namely, the technical scheme of the invention can judge whether the vehicle oil pump is in an idling state or not and implement protective measures on the oil pump in the idling state. When the oil pump idles to cause the temperature of the oil pump to be overhigh, the oil pump is prevented from being damaged due to overhigh temperature.
Drawings
Fig. 1 is a flowchart of an oil pump state control method according to an embodiment of the present invention;
FIG. 2 is a flow chart of another method for controlling the condition of an oil pump according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an oil pump state control system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an oil pump state control device 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 flowchart of a method for controlling a state of an oil pump according to an embodiment of the present invention, which avoids damage to the oil pump due to an excessive temperature when the oil pump idles and the temperature of the oil pump is too high. The method may be performed by an oil pump state control device in an embodiment of the present invention, which may be integrated in a vehicle and may be implemented in software and/or hardware. The following embodiments will be described by taking as an example that the apparatus is integrated in a vehicle, and referring to fig. 1, the method may specifically include the following steps:
and step 101, acquiring state information of each component of the vehicle.
Wherein, each component state information of the vehicle comprises each component state information of the hybrid electric vehicle. The hybrid automobile is an automobile which works under the driving of a generator and a driving motor which are connected in parallel. In the embodiment of the present invention, the state information of each component of the vehicle includes: the fuel level signal, the fuel rail pressure signal, the engine running state, the engine active fuel cut-off state and the air-fuel ratio signal of the front oxygen sensor. The rail pressure is a pressure at which excess fuel delivered by the oil pump is returned. Wherein the pre-oxygen air-fuel ratio is the mass ratio between air and fuel in the mixture. Specifically, a fuel level signal may be obtained by a fuel level annunciator in the vehicle; acquiring an oil rail pressure signal through an oil rail pressure sensor; acquiring the running state of an engine by acquiring the voltage value of the main voltage of the vehicle, the current value of the main current and the like; acquiring an active fuel cut-off state of an engine through a vehicle engine control system; a front oxygen sensor air-fuel ratio signal is obtained via a vehicle oxygen sensor.
And step 102, determining whether an oil pump of the vehicle is in an idling state or not based on the state information of each component.
The idling state of the oil pump is a state in which the oil pump is still rotating when the vehicle oil tank is empty of oil. Specifically, the value of the fuel level signal is obtained based on the fuel level signal in the state information of each component. An oil rail pressure signal value is obtained based on the oil rail pressure signal, and a value of a front oxygen sensor air-fuel ratio signal is obtained based on the front oxygen sensor air-fuel ratio signal. Further, when the acquired state information of each component is the oil pump idling state, the information of each component indicates that the oil pump is in the idling state. Wherein, each subassembly information is when oil pump idle running state: 1. the fuel level signal has no fault; 2. the pressure signal of the oil rail has no fault; 3. the air-fuel ratio signal of the front oxygen sensor has no fault; 4. the value of the fuel liquid level signal is smaller than a preset fuel liquid level threshold value; 5. the running state of the engine is a running state; 6. the value of the oil rail pressure signal is smaller than a preset oil rail pressure threshold value; 7. the value of the pre-oxygen sensor air-fuel ratio signal is greater than a pre-set pre-oxygen air-fuel ratio threshold. The fuel level threshold value can be preset according to the minimum fuel level value which can be measured by the fuel level sensor. When the value of the fuel level signal is less than the preset fuel level threshold value, it indicates that the fuel level sensor cannot measure the fuel level, further indicating that fuel may not exist in the fuel tank. The oil rail pressure threshold value can be set according to the type and the volume of the vehicle, the minimum oil rail pressure value which can be measured by the oil rail pressure sensor and the like. When the value of the rail pressure signal is less than the preset rail pressure threshold, it indicates that there may be no rail pressure in the vehicle at that time. Wherein the front oxygen air-fuel ratio threshold value may be set according to a minimum value measurable by the front oxygen sensor. When the value of the pre-oxygen sensor air-fuel ratio signal is greater than a pre-set pre-oxygen air-fuel ratio threshold, it indicates that the vehicle fuel has reached a minimum condition. It is further inferred that the engine may not inject fuel and burn. Further, in the case where the component state information simultaneously satisfies the above seven pieces of information, it may be determined whether the oil pump of the vehicle is in an idling state.
And 103, starting an oil pump idling protection measure when the oil pump is in an idling state.
When the vehicle oil pump is in an idle state, it can result in excessive vehicle oil pump temperature. Therefore, after it is determined that the oil pump is in the idling state, further, the oil pump idling protection measure is started. The oil pump idling protection measure comprises the step of controlling the oil pump to work discontinuously in a period of time. For example, the oil pump is controlled to be continuously operated for 40 seconds within 100 seconds, and then the oil pump is controlled to be stopped so that the oil pump is stopped for the remaining 60 seconds. Furthermore, the oil pump has sufficient cooling time, and the oil pump is protected from being damaged.
According to the scheme, the state information of each component of the vehicle is obtained; determining whether an oil pump of the vehicle is in an idling state based on the component state information; and starting an oil pump idling protection measure when the oil pump is in an idling state. The scheme of this embodiment can accurately judge whether the oil pump is in idle running state to the oil pump real-time protection measure of idle running state avoids the overheated damage that the oil pump idle running leads to.
FIG. 2 is a flow chart of another method for controlling the condition of an oil pump according to an embodiment of the present invention; the embodiment can be suitable for avoiding the oil pump from being damaged due to overhigh temperature when the oil pump idles to cause overhigh temperature. As shown in fig. 2, the detailed oil pump state control method mainly includes the following steps:
and step 201, acquiring the state information of each component of the vehicle.
Wherein, each component state information of the vehicle includes: the fuel level signal, the fuel rail pressure signal, the engine running state, the engine active fuel cut-off state and the air-fuel ratio signal of the front oxygen sensor.
Specifically, after receiving the component information of the vehicle, it is determined whether the oil pump is in an idling state based on the component information of the vehicle.
In this embodiment, optionally, the determining that the oil pump of the vehicle is in an idling state based on the state information of each component includes:
and when the fuel oil liquid level signal is not in fault, the fuel rail pressure signal is not in fault, the air-fuel ratio signal of the front oxygen sensor is not in fault, the running state of the engine is in a running state, the active fuel cut-off state of the engine is not available, the value of the fuel oil liquid level signal is smaller than a preset fuel oil liquid level threshold value, the value of the fuel rail pressure signal is smaller than a preset fuel rail pressure threshold value, and the value of the air-fuel ratio signal of the front oxygen sensor is larger than a preset front oxygen air-fuel ratio threshold value, the oil pump is determined to be in an idling state.
The fuel level threshold value can be preset according to the minimum fuel level value which can be measured by the fuel level sensor. The fuel rail pressure threshold may be set according to the type and volume of the vehicle, the minimum fuel rail pressure value that can be measured by the fuel rail pressure sensor, and the like. Wherein the front oxygen air-fuel ratio threshold value may be set according to a minimum value measurable by the front oxygen sensor. Further, after it is determined that the oil pump is in the idling state, step 205 is performed.
In the method, the oil pump of the vehicle can be determined to be in the idling state based on the state information of each component, and the accuracy of judging whether the oil pump is in the idling state is improved.
While it is determined that an oil pump of the vehicle is in an idling state, it is further determined whether the oil pump is in a non-idling state.
In this embodiment, optionally, determining that the oil pump is in the non-idle state includes steps a1 to a 2:
step A1: a difference between the value of the fuel level signal and the value of the fuel level signal when the oil pump was last in an idle state is determined.
Wherein the value of the fuel level signal when the oil pump is in an idle state is a value less than a preset fuel level threshold. For example, it is assumed that the value of the fuel level signal when the oil pump was in the idle state last time is 0.5 liters, and the value of the fuel level signal in each of the currently acquired component state information is 5 liters. Further, it was determined that the difference between the value of the fuel level signal and the value of the fuel level signal when the oil pump was last in the idle state was 4.5 liters. Assuming that the value of the fuel level signal when the oil pump was in the idle state last time is 0.9 liters, the value of the fuel level signal in the currently acquired state information of each component of the vehicle is 1.5 liters. Further, it was determined that the difference between the value of the fuel level signal and the value of the fuel level signal when the oil pump was last in the idle state was 0.6 liters.
Step A2: and when the difference value is greater than a preset threshold value and the duration of the difference value is greater than a first preset duration, determining that the oil pump is in a non-idling state.
Wherein, the preset threshold value can be obtained according to the capacity of the vehicle oil tank, the type and the volume of the vehicle, and the like. The first preset duration may be obtained based on the sensitivity of the fuel level sensor, etc. For example, the preset threshold value is 1 liter, the value of the fuel level signal when the oil pump was last in the idle state is 0.5 liter, the difference between the value of the fuel level signal and the value of the fuel level signal when the oil pump was last in the idle state is 4.5 liters, and the time for which the difference is maintained exceeds 1 second (first preset time). Further, it may be determined that the oil pump is in a non-idling state. Assuming that the difference between the value of the fuel level signal and the value of the fuel level signal when the oil pump was in the idle state last time is 0.6 liters and is less than the preset threshold value, it can be determined whether the oil pump is in the idle state. Further, when it is determined that the oil pump is in the non-idling state, step 203 is performed.
In the method, the oil pump of the vehicle can be determined to be in the non-idling state based on the state information of each component, and the accuracy of judging whether the oil pump is in the non-idling state is improved.
And step 203, controlling the oil pump to perform oil pipe exhaust operation.
Specifically, after it is determined that the oil pump is in the non-idling state, it is necessary to control the oil pump to be switched from the idling state to the non-idling state. Further, air present in the oil supply line caused when the oil pump idles is excluded. Wherein, can carry out the oil pipe exhaust operation through the oil pump of device control oil pump in the vehicle etc..
And 204, stopping the oil pipe exhaust operation when the oil rail pressure signal is in the preset state and the maintaining time of the preset state is longer than a second preset time.
The rail pressure is a pressure at which excess fuel delivered by the oil pump is returned. The preset state may be that the value of the rail pressure signal is greater than a preset rail pressure threshold. The larger the pressure value of the fuel rail is, the more redundant fuel in the fuel tank is. Further, when the pressure value of the fuel rail is greater than the preset fuel rail pressure threshold value and the duration of the maintaining time is greater than a second preset duration (generally 1 second), it indicates that no air exists in the fuel tank and there is residual fuel. The tubing venting operation is stopped.
And step 205, controlling the oil pump to work discontinuously within a third preset time period.
Wherein, can obtain the third according to oil pump structure, volume and present oil pump temperature etc. and predetermine for a long time. For example, assume that the third preset time period is 100 seconds. The oil pump may be controlled to be intermittently operated for the third preset time period, and the oil pump may be controlled to be stopped after being continuously operated for 40 seconds within 100 seconds, and be stopped for the remaining 60 seconds.
According to the oil pump state control method provided by the embodiment of the invention, the state information of each component of a vehicle can be acquired; determining whether the oil pump is in an idling state or not based on the fuel liquid level signal, the oil rail pressure signal, the engine running state, the engine active fuel cut-off state and the front oxygen sensor air-fuel ratio signal; controlling an oil pump to perform oil pipe exhaust operation; when the oil rail pressure signal is in a preset state and the maintaining time of the preset state is longer than a second preset time, stopping the oil pipe exhaust operation; and controlling the oil pump to perform intermittent work within a third preset time. Through the scheme of this embodiment, can accurately judge whether vehicle oil pump is in idle running state to implement different protective measures to the different states of oil pump. When the oil pump is in an idling state, overheating damage caused by idling of the oil pump is avoided. When the oil pump is in a non-idling state, the oil pump is controlled to perform oil pipe exhaust operation, so that the oil pump can safely continue to work, and the working efficiency of the oil pump is improved.
Fig. 3 is a schematic structural diagram of an oil pump state control system according to an embodiment of the present invention. As shown in fig. 3, the system includes:
and an oil pump idling state activation calculation for determining that the oil pump is in an idling state based on the information of each component. The information of each component comprises a liquid level signal, an oil rail pressure signal, an engine running state, an engine active fuel cut-off state and a front oxygen sensor air-fuel ratio signal.
And the oil pump idling state resetting calculation is used for determining that the oil pump is in a non-idling state based on the fuel liquid level signal, the fuel rail pressure signal, the engine running state, the engine active fuel cut-off state and the air-fuel ratio signal of the front oxygen sensor.
And the oil pump idling protection control is used for controlling the oil pump to intermittently work within a third preset time.
And the oil supply pipeline is used for controlling the oil pump to perform oil pipe exhaust operation.
And the oil pump idling state storage is used for storing the information corresponding to the currently calculated oil pump idling state in the nonvolatile memory.
The system further comprises an idle state setting request used for receiving the oil pump idle state setting information in the nonvolatile memory. And requesting to set a current oil pump idling state flag, and sending the request to RS port control.
Wherein the RS port control is for activating an oil pump idle status port or a non-idle status port. Where S denotes an idling state port and R denotes a non-idling state port.
The oil pump state control system provided by the embodiment of the invention can execute the oil pump state control method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
Fig. 4 is a schematic structural diagram of an oil pump state control device according to an embodiment of the present invention. The embodiment of the invention provides an oil pump state control device, which comprises:
an information acquisition module 401, configured to acquire state information of each component of the vehicle;
a state determination module 402 for determining whether an oil pump of the vehicle is in an idle state based on the component state information;
and a measure starting module 403, configured to start an oil pump idle protection measure when the oil pump is in an idle state.
Optionally, the state information of each component of the vehicle includes: the fuel level signal, the fuel rail pressure signal, the engine running state, the engine active fuel cut-off state and the air-fuel ratio signal of the front oxygen sensor.
Optionally, the state determining module 402 is specifically configured to:
determining whether the oil pump is in the idle state based on the fuel level signal, the rail pressure signal, the engine operating state, the engine active fuel cut-off state, and the pre-oxygen sensor air-fuel ratio signal;
and when the fuel liquid level signal has no fault, the fuel rail pressure signal has no fault, the pre-oxygen sensor air-fuel ratio signal has no fault, the engine running state is a running state, the engine active fuel cut-off state is no, the value of the fuel liquid level signal is smaller than a preset fuel liquid level threshold value, the value of the fuel rail pressure signal is smaller than a preset fuel rail pressure threshold value, and the value of the pre-oxygen sensor air-fuel ratio signal is larger than a preset pre-oxygen air-fuel ratio threshold value, determining that the oil pump is in the idling state.
Optionally, the state determining module 402 specifically includes:
a difference determination module for determining a difference between the value of the fuel level signal and the value of the fuel level signal when the oil pump was last in the idle state;
and the non-idling state determination module is used for determining that the oil pump is in a non-idling state when the difference is greater than a preset threshold value and the time length maintained by the difference is greater than a first preset time length.
Optionally, the non-idle state determination module is specifically configured to:
and when the oil pump is in the non-idling state, controlling the oil pump to perform oil pipe exhaust operation.
Optionally, the non-idle state determination module further stops the oil pipe exhaust operation when the oil rail pressure signal is in a preset state and the maintaining time of the preset state is longer than a second preset time, where the preset state includes that the value of the oil rail pressure signal is greater than the preset oil rail pressure threshold.
Optionally, the measure starting module 403 is specifically configured to:
and controlling the oil pump to perform intermittent work within a third preset time.
The oil pump state control device provided by the embodiment of the invention can execute the oil pump state control method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
Fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the present invention, and referring to fig. 5, a schematic structural diagram of a computer system 12 of a vehicle suitable for implementing an embodiment of the present invention is shown. The vehicle shown in fig. 5 is only an example, and should not bring any limitation to the function and the range of use of the embodiment of the present invention. 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.
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. 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 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. In the vehicle 12 of the present embodiment, the display 24 is not provided as a separate body, but is embedded in the mirror surface, and when the display surface of the display 24 is not displayed, the display surface of the display 24 and the mirror surface are visually integrated. 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, the network adapter 20 communicates with other modules of the vehicle 12 via the bus 18. It should be understood that although not shown in the figures, 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 oil pump state control by executing programs stored in the system memory 28, for example, implementing an oil pump state control method provided by an embodiment of the present invention: acquiring state information of each component of the vehicle; determining whether an oil pump of the vehicle is in an idling state based on the component state information; and starting an oil pump idling protection measure when the oil pump is in an idling state.
Embodiments of the present invention provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements an oil pump state control method as provided in all embodiments of the present invention: acquiring state information of each component of the vehicle; determining whether an oil pump of the vehicle is in an idling state based on the component state information; and starting an oil pump idling protection measure when the oil pump is in an idling state. Any combination of one or more computer-readable media may be employed. 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 (10)
1. An oil pump state control method characterized by comprising:
acquiring state information of each component of the vehicle;
determining whether an oil pump of the vehicle is in an idling state based on the component state information;
and starting an oil pump idling protection measure when the oil pump is in an idling state.
2. The oil pump state control method according to claim 1, characterized in that the component state information of the vehicle includes: the fuel level signal, the fuel rail pressure signal, the engine running state, the engine active fuel cut-off state and the air-fuel ratio signal of the front oxygen sensor.
3. The oil pump state control method according to claim 2, characterized in that the determining whether an oil pump of the vehicle is in an idling state based on the component state information includes:
determining whether the oil pump is in the idle state based on the fuel level signal, the rail pressure signal, the engine operating state, the engine active fuel cut-off state, and the pre-oxygen sensor air-fuel ratio signal;
and when the fuel liquid level signal has no fault, the fuel rail pressure signal has no fault, the pre-oxygen sensor air-fuel ratio signal has no fault, the engine running state is a running state, the engine active fuel cut-off state is no, the value of the fuel liquid level signal is smaller than a preset fuel liquid level threshold value, the value of the fuel rail pressure signal is smaller than a preset fuel rail pressure threshold value, and the value of the pre-oxygen sensor air-fuel ratio signal is larger than a preset pre-oxygen air-fuel ratio threshold value, determining that the oil pump is in the idling state.
4. The oil pump condition control method according to claim 3, characterized by further comprising:
determining a difference between the value of the fuel level signal and the value of the fuel level signal when the oil pump was last in the idle state;
and when the difference is greater than a preset threshold value and the time length of maintaining the difference is greater than a first preset time length, determining that the oil pump is in a non-idling state.
5. The oil pump state control method according to claim 4, characterized by further comprising:
and when the oil pump is in the non-idling state, controlling the oil pump to perform oil pipe exhaust operation.
6. The oil pump condition control method according to claim 5, further comprising, after controlling the oil pump to perform a tubing drain operation:
and when the oil rail pressure signal is in a preset state and the maintaining time of the preset state is longer than a second preset time, stopping the oil pipe exhaust operation, wherein the preset state comprises that the value of the oil rail pressure signal is larger than the preset oil rail pressure threshold value.
7. The oil pump condition control method according to claim 1, wherein the initiating oil pump idle protection measures includes:
and controlling the oil pump to perform intermittent work within a third preset time.
8. An oil pump condition control device characterized by comprising:
the information acquisition module is used for acquiring the state information of each component of the vehicle;
the state determining module is used for determining whether an oil pump of the vehicle is in an idling state or not based on the state information of each component;
and the measure starting module is used for starting the oil pump idling protection measure when the oil pump is in an idling state.
9. A vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the oil pump status control method according to any one of claims 1 to 7 when executing the program.
10. A computer-readable storage medium on which a computer program is stored, characterized in that the program, when executed by a processor, implements the oil pump state control method according to any one of claims 1 to 7.
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