CN115341974A - Control method and device for engine oil pressure of vehicle and hybrid electric vehicle - Google Patents
Control method and device for engine oil pressure of vehicle and hybrid electric vehicle Download PDFInfo
- Publication number
- CN115341974A CN115341974A CN202211109942.4A CN202211109942A CN115341974A CN 115341974 A CN115341974 A CN 115341974A CN 202211109942 A CN202211109942 A CN 202211109942A CN 115341974 A CN115341974 A CN 115341974A
- Authority
- CN
- China
- Prior art keywords
- oil pressure
- engine oil
- vehicle
- engine
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 56
- 239000010705 motor oil Substances 0.000 title claims description 212
- 239000003921 oil Substances 0.000 claims description 140
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 3
- 230000015654 memory Effects 0.000 description 15
- 238000011217 control strategy Methods 0.000 description 10
- 239000000446 fuel Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 4
- 239000010721 machine oil Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The application discloses a control method and a control device for vehicle oil pressure and a hybrid vehicle, and particularly relates to the technical field of engine control.
Description
Technical Field
The application relates to the technical field of engine control, in particular to a method and a device for controlling the engine oil pressure of a vehicle and a hybrid electric vehicle.
Background
Because the existing engine control strategy is developed based on a pure fuel vehicle, with the vigorous advocation of energy conservation and emission reduction and the higher and higher requirement of consumers on the fuel consumption of the vehicle, part of consumers continuously take the hybrid vehicle as the first choice for purchasing the vehicle. For the existing hybrid vehicle, the engine control strategy is set based on the pure fuel vehicle, so that in the parking state, the engine of the hybrid vehicle is in the power generation mode, the engine may operate in different rotation speed loads based on the magnitude of the power required to be generated, while in the parking state, the engine of the pure fuel vehicle is in the idle mode, and the rotation speed loads are fixed, which results in that the existing engine control strategy cannot meet the engine requirements of the hybrid vehicle, and meanwhile, the problem of unreasonable oil pressure distribution exists in the engine oil pressure control strategy of the pure fuel vehicle used on the hybrid vehicle.
Disclosure of Invention
In view of this, embodiments of the present application provide a method and an apparatus for controlling a vehicle oil pressure, and a hybrid vehicle, so as to solve a problem in the prior art that an oil pressure distribution of a hybrid vehicle is unreasonable.
According to a first aspect, an embodiment of the present application provides a control method of a vehicle oil pressure, including:
the method comprises the steps of obtaining the speed of a current vehicle, and determining the engine oil pressure control mode of a current vehicle engine according to the speed of the current vehicle, wherein the engine oil pressure control mode comprises the following steps: the engine oil pressure control system comprises a parking mode and a running mode, wherein the parking mode is used for adjusting the engine oil pressure value of the current vehicle engine to be a first engine oil pressure value, the running mode is used for adjusting the engine oil pressure value of the vehicle engine to be a second engine oil pressure value, and the first engine oil pressure value is smaller than the second engine oil pressure value;
acquiring a preset engine oil pressure data table corresponding to the engine oil pressure control mode, wherein the preset engine oil pressure data table comprises a first preset engine oil pressure data sub-table corresponding to the parking mode and a second preset engine oil pressure data sub-table corresponding to the driving mode, at least one engine oil pressure value is arranged in each of the first preset engine oil pressure data sub-table and the second preset engine oil pressure sub-table, and the engine oil pressure values are in corresponding relation with a vehicle rotating speed value and a vehicle load value;
acquiring the rotating speed value of the current vehicle and the load value of the current vehicle, searching the preset oil pressure data table according to the rotating speed value of the current vehicle and the load value of the current vehicle, and determining a target oil pressure value;
and adjusting the engine oil pressure value of the current vehicle to the target engine oil pressure value, wherein the target engine oil pressure value comprises a first engine oil pressure value or a second engine oil pressure value.
According to a second aspect, an embodiment of the present application provides a control device of a vehicle oil pressure, including:
the first acquisition module is used for acquiring the speed of a current vehicle and determining an oil pressure control mode of an engine of the current vehicle according to the speed of the current vehicle, wherein the oil pressure control mode comprises the following steps: the engine oil pressure control system comprises a parking mode and a running mode, wherein the parking mode is used for adjusting the engine oil pressure value of the current vehicle engine to be a first engine oil pressure value, the running mode is used for adjusting the engine oil pressure value of the vehicle engine to be a second engine oil pressure value, and the first engine oil pressure value is smaller than the second engine oil pressure value;
the extraction module is used for acquiring a preset engine oil pressure data table corresponding to the engine oil pressure control mode, the preset engine oil pressure data table comprises a first preset engine oil pressure data sub-table corresponding to the parking mode and a second preset engine oil pressure data sub-table corresponding to the driving mode, at least one engine oil pressure value is arranged in each of the first preset engine oil pressure data sub-table and the second preset engine oil pressure data sub-table, and the engine oil pressure values are in corresponding relation with a vehicle rotating speed value and a vehicle load value;
the second acquisition module is used for acquiring the rotating speed value of the current vehicle and the load value of the current vehicle, searching the preset engine oil pressure data table according to the rotating speed value of the current vehicle and the load value of the current vehicle and determining a target engine oil pressure value;
the adjusting module is used for adjusting the engine oil pressure value of the current vehicle to be the target engine oil pressure value, and the target engine oil pressure value comprises a first engine oil pressure value and a second engine oil pressure value.
According to a third aspect, an embodiment of the present application provides a hybrid vehicle, including: the control device of vehicle oil pressure as described above for executing the control method of vehicle oil pressure as described above.
According to a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing computer instructions for causing a computer to execute a control method of a vehicle oil pressure as set forth in the first aspect or any one of the implementation manners of the first aspect.
According to the control method for the engine oil pressure of the vehicle, the engine oil pressure control mode of the engine of the current vehicle is determined by the speed of the current vehicle through obtaining the speed of the current vehicle, then the preset engine oil pressure data table is searched according to the preset engine oil pressure data table corresponding to the engine oil pressure control mode and the rotating speed value of the current vehicle and the load value of the current vehicle, the target engine oil pressure value is determined, the engine oil pressure value of the current vehicle is adjusted to be the target engine oil pressure value, therefore, the control mode of the engine oil pressure is determined according to the speed of the vehicle, the target engine oil pressure value of the vehicle on the day is adjusted according to the determined control mode of the engine oil pressure, and the engine oil pressure of the hybrid vehicle is reasonably distributed.
Drawings
The features and advantages of the present application will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the present application in any way, and in which:
FIG. 1 is a flow chart illustrating a method for controlling a pressure of engine oil of a vehicle according to an embodiment of the present disclosure.
Fig. 2 is a schematic flowchart of steps S51 to S54 in a method for controlling a vehicle oil pressure according to an embodiment of the present disclosure.
Fig. 3 is a schematic flowchart of steps S61 to S63 in the method for controlling the oil pressure of the vehicle according to the embodiment of the present application.
Fig. 4 is a schematic flowchart of steps S631 to S633 in the control method for vehicle oil pressure according to the embodiment of the present application.
Fig. 5 is a schematic flowchart illustrating steps S71 to S73 in a method for controlling a vehicle oil pressure according to an embodiment of the present disclosure.
Fig. 6 is a schematic structural diagram of a control device for vehicle oil pressure according to an embodiment of the present application.
Fig. 7 is a schematic structural diagram of a hybrid electric vehicle according to an embodiment of the present application.
Reference numerals
10-a first acquisition module; 20-an extraction module; 30-a second acquisition module; 40-an adjustment module; 51-a processor; 52-memory.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that, the existing engine control strategy is developed based on a pure fuel vehicle, while the pure fuel vehicle is in an idle mode in a parking state, and the rotational speed load of the pure fuel vehicle is fixed, but the hybrid vehicle is in a power generation mode in the parking state, at this time, the engine in the hybrid vehicle may operate at different rotational speed loads based on the required power generation, and if the engine of the hybrid vehicle still continues to use the engine control strategy of the pure fuel vehicle, the fuel consumption may be increased due to the fact that the engine oil pressure of the engine is adjusted by using an unreasonable engine control strategy. The method and the device for controlling the engine oil pressure of the vehicle and the hybrid electric vehicle provided by the embodiment of the application aim to solve the problem that the existing engine control strategy cannot meet the requirement of the hybrid electric vehicle on the engine control strategy.
As shown in fig. 1, a schematic flow chart of a method for controlling a vehicle oil pressure according to an embodiment of the present application is provided, the method for controlling a vehicle oil pressure according to the embodiment of the present application is suitable for a hybrid vehicle, and in the embodiment, an electronic controller of the hybrid vehicle is taken as an execution subject to explain implementation steps of the method for controlling a vehicle oil pressure, and the method for controlling a vehicle oil pressure includes the following steps:
s10, acquiring the speed of the current vehicle, and determining an oil pressure control mode of the engine of the current vehicle according to the speed of the current vehicle, wherein the oil pressure control mode comprises the following steps: the engine oil pressure control system comprises a parking mode for adjusting the engine oil pressure value of the current vehicle engine to a first engine oil pressure value and a running mode for adjusting the engine oil pressure value of the vehicle engine to a second engine oil pressure value, wherein the first engine oil pressure value is smaller than the second engine oil pressure value.
And S20, acquiring a preset engine oil pressure data table corresponding to the engine oil pressure control mode, wherein the preset engine oil pressure data table comprises a first preset engine oil pressure data sub-table corresponding to the parking mode and a second preset engine oil pressure data sub-table corresponding to the driving mode, at least one engine oil pressure value is arranged in each of the first preset engine oil pressure data sub-table and the second preset engine oil pressure sub-table, and the engine oil pressure values are in corresponding relation with the vehicle rotating speed value and the vehicle load value.
And S30, acquiring the rotating speed value of the current vehicle and the load value of the current vehicle, searching a preset oil pressure data table according to the rotating speed value of the current vehicle and the load value of the current vehicle, and determining a target oil pressure value.
And S40, adjusting the engine oil pressure value of the current vehicle to be a target engine oil pressure value, wherein the target engine oil pressure value comprises a first engine oil pressure value or a second engine oil pressure value.
The method for controlling the oil pressure of the vehicle comprises the steps of obtaining the speed of the current vehicle, determining the oil pressure control mode of the engine of the current vehicle by using the speed of the current vehicle, then obtaining a preset oil pressure data table corresponding to the oil pressure control mode and obtaining the rotating speed value of the current vehicle and the load value of the current vehicle, searching the preset oil pressure data table according to the rotating speed value of the current vehicle and the load value of the current vehicle, determining a target oil pressure value, finally adjusting the oil pressure value of the current vehicle to the target oil pressure value, and therefore, determining the control mode of the oil pressure according to the speed of the vehicle, then adjusting the target oil pressure value of the vehicle on the same day by using the determined control mode of the oil pressure, and achieving reasonable distribution of the oil pressure of the hybrid vehicle.
In this embodiment, the electronic controller of the hybrid vehicle determines the state of the vehicle from the vehicle speed, and then uses different engine oil control strategies. For example: when the hybrid electric vehicle is in a parking charging state, a higher engine oil pressure control mode can be selected according to the current vehicle speed, so that the pressure of the engine tensioner is improved, the stability of the whole system is improved, and the comfort of vehicle driving is optimized finally. When the hybrid vehicle is in a running state, the engine oil pressure control mode favorable for oil consumption can be used according to the current vehicle speed, so that the oil consumption of the hybrid vehicle is reduced, and the economical efficiency of the vehicle is improved.
As shown in fig. 2, a flow chart of steps S51 to S54 in a method for controlling a vehicle oil pressure provided by an embodiment of the present application is schematically shown, and the method for controlling the vehicle oil pressure includes the following steps:
and S51, acquiring the engine oil pressure value of the current vehicle engine after the vehicle engine is started.
And S52, judging whether the engine oil pressure value is in the value range of the fault threshold value.
And S53, if the engine oil pressure value is in the value range of the fault threshold, adjusting the engine oil pressure value of the current vehicle engine to be the maximum engine oil pressure value of the vehicle engine, and outputting prompt information, wherein the prompt information is used for prompting a user that the current vehicle is in a fault mode.
And S54, if the engine oil pressure value is not in the value range of the fault threshold, executing the step S10.
In this embodiment, after the engine of the hybrid vehicle is started, the engine oil pressure sensor of the hybrid vehicle enters a fault self-checking mode, and when the fault self-checking result of the engine oil pressure sensor is a sensor fault, the hybrid vehicle enters the fault self-checking mode, and the electronic controller in the hybrid vehicle adjusts the engine oil pressure value to the engine oil pressure value corresponding to the fault self-checking mode. The electronic hardware in the automobile is ensured to be in a normal working state by carrying out self-checking of the oil pressure sensor after the engine of the automobile is started.
As shown in fig. 3, a flow chart of steps S61 to S63 in the method for controlling the oil pressure of the vehicle according to the embodiment of the present application is shown. In this example, the oil pressure control mode further includes a cold mode for adjusting an oil pressure value of the vehicle engine to a third oil pressure value, where the third oil pressure value is less than the first oil pressure value, and the first oil pressure value is less than the second oil pressure value. That is, before the present embodiment performs step S1, the control method of the vehicle oil pressure further includes:
s61, acquiring a water temperature value of the current vehicle engine, and judging whether the water temperature value of the current vehicle engine meets an engine water temperature threshold value;
and S62, when the water temperature value of the current vehicle engine meets the water temperature threshold value of the engine, selecting a cold machine mode from the oil pressure control modes, controlling the oil pressure of the current vehicle engine, and adjusting the oil pressure value of the current vehicle engine to be a target oil pressure value, wherein the target oil pressure value is a third oil pressure value.
And S63, when the water temperature value of the current vehicle engine does not meet the water temperature threshold of the engine, acquiring the current vehicle speed, selecting a parking mode or a running mode from the engine oil pressure control modes according to the current vehicle speed, controlling the oil pressure of the current vehicle engine, and adjusting the oil pressure value of the current vehicle engine to be the target oil pressure value.
In this embodiment, after the self-checking of the engine oil pressure sensor of the hybrid electric vehicle is finished, the electronic controller of the hybrid electric vehicle obtains the water temperature information of the engine to determine, determines whether the engine of the hybrid electric vehicle is in a cold state, and controls the engine oil pressure value in a cold mode if the engine of the hybrid electric vehicle is in the cold state. Through setting up different machine oil pressure control modes in this application embodiment, make the engine can work under the machine oil pressure environment of ideal, guarantee that machine oil pressure is in reasonable energy efficiency scope to improve the oil consumption, improve user's driving experience.
In the present embodiment, as shown in fig. 4, a flow chart of steps S631 to S633 in the method for controlling the vehicle oil pressure according to the embodiment of the present application is shown. Step S63 further includes the steps of:
s631, judging whether the vehicle speed of the current vehicle is less than or equal to the vehicle speed threshold value.
And S632, if the speed of the current vehicle is less than or equal to the speed threshold, determining a first oil pressure value by adopting a parking mode.
In this embodiment, determining the first oil pressure value by using the parking mode may be acquiring a first preset oil pressure data sub-table; acquiring a rotating speed value of a current vehicle and a load value of the current vehicle, searching a first preset engine oil pressure data sub-table according to the rotating speed value of the current vehicle and the load value of the current vehicle, and determining a first engine oil pressure value; and adjusting the current engine oil pressure value of the vehicle to be the first engine oil pressure value.
And S633, if the speed of the current vehicle is greater than the speed threshold value, determining a second oil pressure value by adopting a running mode.
In this embodiment, the determining the second oil pressure value by using the driving mode may be acquiring a second preset oil pressure data sub-table; acquiring a rotating speed value of the current vehicle and a load value of the current vehicle, searching a second preset engine oil pressure data sub-table according to the rotating speed value of the current vehicle and the load value of the current vehicle, and determining a second engine oil pressure value; and adjusting the current engine oil pressure value of the vehicle to be a second engine oil pressure value.
As shown in fig. 5, a flow chart of steps S71 to S73 in the method for controlling the oil pressure of the vehicle according to the embodiment of the present application is shown. In the method for controlling the vehicle oil pressure according to the embodiment of the present application, before executing step S40, the method for controlling the vehicle oil pressure further includes:
s71, acquiring a target engine oil pressure value of the vehicle at the previous moment and a target engine oil pressure value of the vehicle at the current moment;
s72, carrying out interpolation calculation on the target engine oil pressure value of the vehicle at the previous moment and the target engine oil pressure value of the vehicle at the current moment to obtain an engine oil pressure value after the interpolation calculation;
and S73, updating the target engine oil pressure value of the vehicle at the current moment according to the engine oil pressure value after interpolation calculation.
Optionally, the method for controlling the vehicle oil pressure according to this embodiment further includes, before executing step S40: and filtering the target engine oil pressure value to obtain the filtered target engine oil pressure value.
Optionally, the threshold provided in the embodiment of the present application may be a parameter obtained through a limited number of experiments. For example: the threshold water temperature is 60 ℃.
In the actual driving process, the engine oil pressure control mode may be frequently switched, so that sudden change of the target engine oil pressure is caused, and the driving experience of a user is influenced. For this purpose, the target oil press may be filtered using a filtering algorithm, such as interpolation filtering, to alleviate the situation where sudden changes in the target oil pressure result in poor user experience.
The method for controlling the oil pressure of the vehicle provided by the embodiment of the application can use different oil pressure control modes according to different driving states of the hybrid vehicle. Specifically, after the engine of the hybrid electric vehicle is started, the hybrid electric vehicle enters the engine oil pressure sensor for self-checking, when the engine oil pressure sensor of the hybrid electric vehicle breaks down, the engine oil pressure control enters a failure mode, under the failure mode, the engine oil pressure is the maximum value, the engine oil pressure sensor breaks down after the vehicle is extinguished in the driving process of a user and is reignited again, and the engine oil pressure value is adjusted to the maximum value, so that the user can drive the failed vehicle to a maintenance station or drive the failed vehicle away from dangerous road conditions. When the self-checking result of the engine oil pressure sensor of the hybrid electric vehicle is normal, the electronic controller of the hybrid electric vehicle acquires the current water temperature of the engine, then judges whether the current water temperature is in a cold state according to a water temperature threshold value, if the current water temperature is lower than the threshold value, the engine is in the cold state, and the engine oil pressure control enters a cold mode. And if the water temperature is higher than the water temperature threshold, acquiring the current vehicle speed, judging whether the vehicle is in the parking mode according to the vehicle speed threshold, if the current vehicle speed is less than or equal to the vehicle speed threshold, adopting the parking mode, and if not, adopting the running mode.
After the electronic controller of the hybrid electric vehicle enters a corresponding engine oil pressure control mode, the electronic controller adopts the corresponding engine oil pressure to control the current engine oil pressure value of the vehicle. Specifically, the target oil pressure in the current state may be obtained by calculating an interpolation of the rotational speed and the load according to the current rotational speed and the load of the engine, and then filtering the target oil pressure to output the final target oil pressure.
Accordingly, referring to fig. 6, an embodiment of the present application provides a control device for a vehicle oil pressure, including:
the first obtaining module 10 is configured to obtain a vehicle speed of a current vehicle, and determine an oil pressure control mode of an engine of the current vehicle according to the vehicle speed of the current vehicle, where the oil pressure control mode includes: a parking mode for adjusting the engine oil pressure value of the current vehicle engine to a first engine oil pressure value, and a driving mode for adjusting the engine oil pressure value of the vehicle engine to a second engine oil pressure value, where the first engine oil pressure value is smaller than the second engine oil pressure value, and the details refer to step S10.
An extracting module 20, configured to obtain a preset oil pressure data table corresponding to the oil pressure control mode, where the preset oil pressure data table includes a first preset oil pressure data sub-table corresponding to the parking mode and a second preset oil pressure data sub-table corresponding to the driving mode, where the first preset oil pressure data sub-table and the second preset oil pressure sub-table are both provided with at least one oil pressure value, and the oil pressure value is in a corresponding relationship with a vehicle speed value and a vehicle load value, and the detailed content refers to step S20.
A second obtaining module 30, configured to obtain a rotation speed value of the current vehicle and a load value of the current vehicle, search the preset oil pressure data table according to the rotation speed value of the current vehicle and the load value of the current vehicle, and determine a target oil pressure value, where the detailed content refers to step S30.
And an adjusting module 40, configured to adjust the current oil pressure value of the vehicle to the target oil pressure value, where the target oil pressure value includes a first oil pressure value and a second oil pressure value, and the detailed content refers to step S40.
The embodiment of the present application further provides a hybrid electric vehicle, as shown in fig. 7, a processor 51 and a memory 52 are provided on the hybrid electric vehicle, where the processor 51 and the memory 52 may be connected through a bus or in another manner, and fig. 7 takes the example of connection through a bus as an example.
The processor 51 may be a Central Processing Unit (CPU). The Processor 51 may also be other general purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or combinations thereof.
The memory 52, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules (e.g., the respective modules shown in fig. 6) corresponding to the key shielding method of the in-vehicle display device in the embodiment of the present application. The processor 51 executes various functional applications and data processing of the processor by running non-transitory software programs, instructions and modules stored in the memory 52, namely, implements the control method of the vehicle oil pressure in the above-described method embodiment.
The memory 52 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 51, and the like. Further, the memory 52 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 52 may optionally include memory located remotely from the processor 51, and these remote memories may be connected to the processor 51 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 52 and, when executed by the processor 51, perform a method of controlling vehicle oil pressure as in the embodiment of FIGS. 1-5.
The details of the hybrid vehicle can be understood by referring to the corresponding descriptions and effects in the embodiments shown in fig. 1 to fig. 5, which are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations are within the scope defined by the appended claims.
Claims (10)
1. A method of controlling a vehicle oil pressure, comprising:
the method comprises the steps of obtaining the speed of a current vehicle, and determining the engine oil pressure control mode of a current vehicle engine according to the speed of the current vehicle, wherein the engine oil pressure control mode comprises the following steps: the engine oil pressure control system comprises a parking mode and a running mode, wherein the parking mode is used for adjusting the engine oil pressure value of the current vehicle engine to be a first engine oil pressure value, the running mode is used for adjusting the engine oil pressure value of the vehicle engine to be a second engine oil pressure value, and the first engine oil pressure value is smaller than the second engine oil pressure value;
acquiring a preset engine oil pressure data table corresponding to the engine oil pressure control mode, wherein the preset engine oil pressure data table comprises a first preset engine oil pressure data sub-table corresponding to the parking mode and a second preset engine oil pressure data sub-table corresponding to the driving mode, at least one engine oil pressure value is arranged in each of the first preset engine oil pressure data sub-table and the second preset engine oil pressure sub-table, and the engine oil pressure values are in corresponding relation with a vehicle rotating speed value and a vehicle load value;
acquiring the rotating speed value of the current vehicle and the load value of the current vehicle, searching the preset oil pressure data table according to the rotating speed value of the current vehicle and the load value of the current vehicle, and determining a target oil pressure value;
and adjusting the engine oil pressure value of the current vehicle to the target engine oil pressure value, wherein the target engine oil pressure value comprises a first engine oil pressure value or a second engine oil pressure value.
2. The control method of vehicle oil pressure according to claim 1, characterized by further comprising:
after a vehicle engine is started, obtaining the engine oil pressure value of the current vehicle engine;
judging whether the engine oil pressure value is in a value range of a fault threshold value;
and if the engine oil pressure value is in the value range of the fault threshold, adjusting the engine oil pressure value of the current vehicle engine to be the maximum engine oil pressure value of the vehicle engine, and outputting prompt information, wherein the prompt information is used for prompting a user that the current vehicle is in a fault mode.
3. The method according to any one of claims 1-2, wherein the oil pressure control mode further includes a cold mode for adjusting an oil pressure value of the vehicle engine to a third oil pressure value, the third oil pressure value being smaller than the first oil pressure value, and the first oil pressure value being smaller than the second oil pressure value, and the method further includes, before obtaining a current vehicle speed of the vehicle and determining the oil pressure control mode of the current vehicle engine according to the current vehicle speed:
acquiring a water temperature value of a current vehicle engine, and judging whether the water temperature value of the current vehicle engine meets the engine water temperature threshold value;
when the water temperature value of the current vehicle engine meets the water temperature threshold value of the engine, selecting a cold machine mode from the engine oil pressure control modes, controlling the engine oil pressure of the current vehicle engine, and adjusting the engine oil pressure value of the current vehicle engine to the target engine oil pressure value, wherein the target engine oil pressure value is a third engine oil pressure value;
and when the water temperature value of the current vehicle engine does not meet the water temperature threshold of the engine, acquiring the speed of the current vehicle, selecting a parking mode or a running mode from the oil pressure control modes according to the speed of the current vehicle, controlling the oil pressure of the current vehicle engine, and adjusting the oil pressure value of the current vehicle engine to the target oil pressure value.
4. The method according to claim 3, wherein the obtaining of the vehicle speed of the current vehicle, the selecting of the parking mode or the driving mode from the oil pressure control mode according to the vehicle speed of the current vehicle, the controlling of the oil pressure of the current vehicle engine, and the adjusting of the oil pressure value of the current vehicle engine to the target oil pressure value comprise:
judging whether the speed of the current vehicle is less than or equal to a speed threshold value;
if the speed of the current vehicle is less than or equal to a speed threshold, determining the first engine oil pressure value by adopting the parking mode;
and if the speed of the current vehicle is greater than the speed threshold, determining the second engine oil pressure value by adopting the running mode.
5. The method of claim 4, wherein the first oil pressure value is determined using the park mode, the method comprising:
acquiring the first preset engine oil pressure data sub-table;
acquiring a rotating speed value of the current vehicle and a load value of the current vehicle, searching the first preset engine oil pressure data sub-table according to the rotating speed value of the current vehicle and the load value of the current vehicle, and determining the first engine oil pressure value;
adjusting the engine oil pressure value of the current vehicle to a first engine oil pressure value;
or, the second oil pressure value is determined by adopting the parking mode, and the control method of the vehicle oil pressure comprises the following steps:
acquiring a second preset engine oil pressure data sub-table;
acquiring the rotating speed value of the current vehicle and the load value of the current vehicle, searching the second preset oil pressure data sub-table according to the rotating speed value of the current vehicle and the load value of the current vehicle, and determining the second oil pressure value;
and adjusting the current engine oil pressure value of the vehicle to be a second engine oil pressure value.
6. The control method of vehicle oil pressure according to claim 1, characterized in that, before adjusting a current vehicle oil pressure value to the target oil pressure value, the control method of vehicle oil pressure further comprises:
acquiring a target engine oil pressure value of the vehicle at the previous moment and a target engine oil pressure value of the vehicle at the current moment;
performing interpolation calculation on the target engine oil pressure value of the vehicle at the previous moment and the target engine oil pressure value of the vehicle at the current moment to obtain an engine oil pressure value after the interpolation calculation;
and updating the target engine oil pressure value of the vehicle at the current moment according to the engine oil pressure value after the interpolation calculation.
7. The control method of vehicle oil pressure according to claim 1 or 5, characterized in that, before adjusting the current vehicle oil pressure value to the target oil pressure value, the method further comprises:
and filtering the target engine oil pressure value to obtain a filtered target engine oil pressure value.
8. A control device of a vehicle oil pressure, characterized by comprising:
the first obtaining module is used for obtaining the speed of a current vehicle and determining an oil pressure control mode of an engine of the current vehicle according to the speed of the current vehicle, wherein the oil pressure control mode comprises the following steps: the engine oil pressure control system comprises a parking mode and a running mode, wherein the parking mode is used for adjusting the engine oil pressure value of the current vehicle engine to be a first engine oil pressure value, the running mode is used for adjusting the engine oil pressure value of the vehicle engine to be a second engine oil pressure value, and the first engine oil pressure value is smaller than the second engine oil pressure value;
the extraction module is used for acquiring a preset engine oil pressure data table corresponding to the engine oil pressure control mode, the preset engine oil pressure data table comprises a first preset engine oil pressure data sub-table corresponding to the parking mode and a second preset engine oil pressure data sub-table corresponding to the running mode, at least one engine oil pressure value is arranged in each of the first preset engine oil pressure data sub-table and the second preset engine oil pressure sub-table, and the engine oil pressure values are in corresponding relation with a vehicle rotating speed value and a vehicle load value;
the second acquisition module is used for acquiring the rotating speed value of the current vehicle and the load value of the current vehicle, searching the preset oil pressure data table according to the rotating speed value of the current vehicle and the load value of the current vehicle and determining a target oil pressure value;
the adjusting module is used for adjusting the engine oil pressure value of the current vehicle to be the target engine oil pressure value, and the target engine oil pressure value comprises a first engine oil pressure value and a second engine oil pressure value.
9. A hybrid vehicle, comprising: the control device of vehicle oil pressure according to claim 8, which is used to execute the control method of vehicle oil pressure according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions for causing the computer to execute the control method of vehicle oil pressure according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211109942.4A CN115341974A (en) | 2022-09-13 | 2022-09-13 | Control method and device for engine oil pressure of vehicle and hybrid electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211109942.4A CN115341974A (en) | 2022-09-13 | 2022-09-13 | Control method and device for engine oil pressure of vehicle and hybrid electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115341974A true CN115341974A (en) | 2022-11-15 |
Family
ID=83956738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211109942.4A Pending CN115341974A (en) | 2022-09-13 | 2022-09-13 | Control method and device for engine oil pressure of vehicle and hybrid electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115341974A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011247167A (en) * | 2010-05-26 | 2011-12-08 | Toyota Motor Corp | In-vehicle lubricating oil supply device |
| CN102466035A (en) * | 2010-11-01 | 2012-05-23 | 加特可株式会社 | Hydraulic control apparatus for vehicle |
| US20130008244A1 (en) * | 2011-06-21 | 2013-01-10 | Honda Motor Co., Ltd. | Device and method for oil pressure sensor fault sensing for vehicle |
| US20130151113A1 (en) * | 2011-12-13 | 2013-06-13 | Kia Motors Corporation | Oil pump control system for vehicle |
| JP2013130162A (en) * | 2011-12-22 | 2013-07-04 | Suzuki Motor Corp | Apparatus for determining engine failure |
| CN103362591A (en) * | 2012-03-27 | 2013-10-23 | 现代自动车株式会社 | Oil pump control system for vehicle and operation method thereof |
| CN112554990A (en) * | 2019-09-25 | 2021-03-26 | 长城汽车股份有限公司 | Engine lubrication control method and device and oil-electricity hybrid vehicle |
| WO2021110005A1 (en) * | 2019-12-02 | 2021-06-10 | 长城汽车股份有限公司 | Engine oil maintenance control method and device |
| CN113756907A (en) * | 2021-08-05 | 2021-12-07 | 东风汽车集团股份有限公司 | Engine oil pressure control method and device and vehicle |
| CN113833577A (en) * | 2020-06-24 | 2021-12-24 | 广州汽车集团股份有限公司 | Vehicle engine control method, device and storage medium |
| CN114575958A (en) * | 2020-11-30 | 2022-06-03 | 上海汽车集团股份有限公司 | Control method of engine oil pump and Electronic Control Unit (ECU) |
| CN114810272A (en) * | 2021-06-07 | 2022-07-29 | 长城汽车股份有限公司 | Engine control method and device |
-
2022
- 2022-09-13 CN CN202211109942.4A patent/CN115341974A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011247167A (en) * | 2010-05-26 | 2011-12-08 | Toyota Motor Corp | In-vehicle lubricating oil supply device |
| CN102466035A (en) * | 2010-11-01 | 2012-05-23 | 加特可株式会社 | Hydraulic control apparatus for vehicle |
| US20130008244A1 (en) * | 2011-06-21 | 2013-01-10 | Honda Motor Co., Ltd. | Device and method for oil pressure sensor fault sensing for vehicle |
| US20130151113A1 (en) * | 2011-12-13 | 2013-06-13 | Kia Motors Corporation | Oil pump control system for vehicle |
| JP2013130162A (en) * | 2011-12-22 | 2013-07-04 | Suzuki Motor Corp | Apparatus for determining engine failure |
| CN103362591A (en) * | 2012-03-27 | 2013-10-23 | 现代自动车株式会社 | Oil pump control system for vehicle and operation method thereof |
| CN112554990A (en) * | 2019-09-25 | 2021-03-26 | 长城汽车股份有限公司 | Engine lubrication control method and device and oil-electricity hybrid vehicle |
| WO2021110005A1 (en) * | 2019-12-02 | 2021-06-10 | 长城汽车股份有限公司 | Engine oil maintenance control method and device |
| CN113833577A (en) * | 2020-06-24 | 2021-12-24 | 广州汽车集团股份有限公司 | Vehicle engine control method, device and storage medium |
| CN114575958A (en) * | 2020-11-30 | 2022-06-03 | 上海汽车集团股份有限公司 | Control method of engine oil pump and Electronic Control Unit (ECU) |
| CN114810272A (en) * | 2021-06-07 | 2022-07-29 | 长城汽车股份有限公司 | Engine control method and device |
| CN113756907A (en) * | 2021-08-05 | 2021-12-07 | 东风汽车集团股份有限公司 | Engine oil pressure control method and device and vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 占荣辉: "《Amesim机电一体化仿真教程》", vol. 1, 国防工业出版社, pages: 369 - 371 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100847527B1 (en) | Control apparatus for selectively controlling output current and output voltage of electric generator | |
| CN109823193B (en) | Electric automobile operation control method and device, controller and storage medium | |
| CN111509331B (en) | Control method and device for cooling power battery and electric vehicle | |
| CN109305115A (en) | A kind of automobile control method, electric car and computer readable storage medium | |
| JP6608419B2 (en) | System for reducing steering column jerk during automatic engine start | |
| CN112549975A (en) | Driving control method for long downhill of electric automobile, electric automobile and storage medium | |
| CN111086415B (en) | Battery charging management method, device, vehicle and storage medium | |
| US12012093B2 (en) | Vehicle drive control method and system | |
| JP2006238681A (en) | Testing system of device for driving loads and control method therefor | |
| CN115341974A (en) | Control method and device for engine oil pressure of vehicle and hybrid electric vehicle | |
| CN117465224A (en) | Energy recovery control method, system, vehicle and storage medium | |
| CN112009270A (en) | Motor output power control method, power automobile and readable storage medium | |
| CN116853219A (en) | Range extender power generation control method, range extender power generation control device, computer equipment and storage medium | |
| CN115032932B (en) | Control method and device of vehicle controller, central gateway controller and medium | |
| CN112737023B (en) | Power receiving equipment control method and device in quick charging mode and power receiving equipment | |
| CN113665365B (en) | Control method and device for running mode of electric automobile, electric automobile and medium | |
| CN115434799A (en) | Engine water temperature monitoring and early warning method, electronic equipment, storage medium and vehicle | |
| CN114161938B (en) | Electric automobile energy recovery method and electronic equipment | |
| KR20100064229A (en) | Motor control method for mdps system | |
| CN112572165A (en) | N-gear power generation control method, vehicle control unit, vehicle and storage medium | |
| CN117246148B (en) | Control method, control device, electronic apparatus, and storage medium for electric drive system | |
| CN118753263A (en) | Vehicle driving control method and device, storage medium and vehicle | |
| CN116201633A (en) | Extended range vehicle engine protection method, device, equipment and storage medium | |
| JP7025142B2 (en) | In-vehicle electrical system | |
| CN114696723A (en) | BSG power reduction control method and device and terminal equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221115 |
|
| RJ01 | Rejection of invention patent application after publication |