Method, device, vehicle and storage medium for determining oil pressure

Abstract

The present invention discloses a method, device, vehicle, and storage medium for determining oil pressure. The method includes: after a vehicle is powered on, determining a vehicle stagnation time based on the vehicle power-on time and the most recent power-off time; determining the oil pressure after the vehicle is powered on based on the vehicle stagnation time; while the vehicle is operating, determining a first compensation value and a second compensation value for the oil pressure based on the oil density and the road slope, respectively; determining a target compensation value based on the first and second compensation values, and determining the oil pressure while the vehicle is operating based on the target compensation value. The oil pressure determination method provided by the present invention can correct the vehicle's oil pressure based on various factors affecting the oil pressure without increasing hardware costs, thereby ensuring safe engine operation.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to a method and device for determining engine oil pressure, a vehicle, and a storage medium. Background Art

[0002] For vehicles, engine oil's cooling, lubrication, and sealing functions require a certain oil pressure to function properly. Therefore, oil pressure is crucial to the vehicle engine. However, factors such as long-term oil consumption, short-distance driving, and hilly road conditions can affect the oil state and cause oil pressure to fluctuate, necessitating adjustments to the engine's oil pressure.

[0003] In the traditional engine development process, a metered-displacement pump is often used. The displacement of the oil pump is determined according to the engine's extreme operating conditions, and the displacement is immutable. Therefore, when the engine is operating under normal operating conditions, the engine oil pressure cannot be corrected in time, thus affecting the safe operation of the engine. Summary of the Invention

[0004] The present invention provides a method, device, vehicle and storage medium for determining engine oil pressure, so as to realize correction of engine oil pressure.

[0005] According to one aspect of the present invention, a method for determining engine oil pressure is provided, comprising:

[0006] After the vehicle is powered on, the vehicle stagnation time is determined based on the vehicle power-on time and the most recent power-off time;

[0007] determining the oil pressure after the vehicle is powered on based on the vehicle stagnation time;

[0008] In a vehicle operation state, determining a first compensation value and a second compensation value of the oil pressure according to the oil density and the road slope respectively;

[0009] A target compensation value is determined according to the first compensation value and the second compensation value, and an oil pressure in a vehicle running state is determined according to the target compensation value.

[0010] Furthermore, determining the oil pressure after the vehicle is powered on according to the vehicle stagnation time includes:

[0011] If the vehicle stagnation time is greater than a set time threshold, determining the oil consumption based on the oil level;

[0012] The oil pressure after the vehicle is powered on is determined according to the oil consumption.

[0013] Furthermore, determining the oil pressure after the vehicle is powered on according to the oil consumption includes:

[0014] If the oil consumption is less than or equal to a set oil consumption threshold, determining a third compensation value of the oil pressure;

[0015] The oil pressure after the vehicle is powered on is determined according to the third compensation value, and the third compensation value is stored as a pre-stored compensation value.

[0016] Furthermore, the method further comprises:

[0017] If the vehicle stagnation time is less than or equal to the set time threshold, the oil pressure after the vehicle is powered on is determined according to the pre-stored compensation value.

[0018] Furthermore, the method further comprises:

[0019] If the oil consumption is greater than the set oil consumption threshold, an engine status warning is issued.

[0020] Furthermore, determining the first compensation value and the second compensation value of the oil pressure according to the oil density and the road slope respectively includes:

[0021] obtaining an oil density, and determining the first compensation value if the oil density is less than or equal to a set density threshold;

[0022] An oil level coefficient is determined according to the road slope and the engine speed, and the second compensation value is determined according to the level coefficient.

[0023] Furthermore, determining a target compensation value according to the first compensation value and the second compensation value includes:

[0024] determining a maximum value between the first compensation value and the second compensation value;

[0025] The maximum value is determined as the target compensation value.

[0026] According to another aspect of the present invention, there is provided an apparatus for determining engine oil pressure, comprising:

[0027] The vehicle stagnation time determination module is used to determine the vehicle stagnation time based on the vehicle power-on time and the most recent power-off time after the vehicle is powered on;

[0028] a first oil pressure determination module, configured to determine the oil pressure after the vehicle is powered on according to the vehicle stagnation time;

[0029] a first compensation value and a second compensation value determining module, configured to determine a first compensation value and a second compensation value of the oil pressure according to the oil density and the road slope, respectively, when the vehicle is in operation;

[0030] The second oil pressure determination module is configured to determine a target compensation value according to the first compensation value and the second compensation value, and determine the oil pressure in a vehicle operation state according to the target compensation value.

[0031] Optionally, the first oil pressure determination module is further configured to:

[0032] If the vehicle stagnation time is greater than a set time threshold, determining the oil consumption based on the oil level;

[0033] The oil pressure after the vehicle is powered on is determined according to the oil consumption.

[0034] Optionally, the first oil pressure determination module is further configured to:

[0035] If the oil consumption is less than or equal to a set oil consumption threshold, determining a third compensation value of the oil pressure;

[0036] The oil pressure after the vehicle is powered on is determined according to the third compensation value, and the third compensation value is stored as a pre-stored compensation value.

[0037] Optionally, the oil pressure determination device further includes a third oil pressure determination module, which is used to determine the oil pressure after the vehicle is powered on based on the pre-stored compensation value if the vehicle stagnation time is less than or equal to the set time threshold.

[0038] Optionally, the oil pressure determination device further includes a warning module for issuing an engine status warning if the oil consumption is greater than the set oil consumption threshold.

[0039] Optionally, the first compensation value and the second compensation value determination module are further configured to:

[0040] obtaining an oil density, and determining the first compensation value if the oil density is less than or equal to a set density threshold;

[0041] An oil level coefficient is determined according to the road slope and the engine speed, and the second compensation value is determined according to the level coefficient.

[0042] Optionally, the second oil pressure determination module is further configured to:

[0043] determining a maximum value between the first compensation value and the second compensation value;

[0044] The maximum value is determined as the target compensation value.

[0045] According to another aspect of the present invention, there is provided a vehicle, comprising:

[0046] one or more controllers;

[0047] a storage device for storing one or more programs;

[0048] When the one or more programs are executed by the one or more controllers, the one or more controllers implement the method for determining the oil pressure described in any embodiment of the present invention.

[0049] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining the oil pressure according to any embodiment of the present invention when executed.

[0050] In an embodiment of the present invention, after a vehicle is powered on, the vehicle's stagnation time is first determined based on the vehicle's power-on time and the most recent power-off time. The vehicle's oil pressure after powering on is then determined based on the stagnation time. While the vehicle is operating, a first compensation value and a second compensation value for the oil pressure are determined based on the oil density and road slope, respectively. Finally, a target compensation value is determined based on the first and second compensation values, and the oil pressure during vehicle operation is determined based on the target compensation value. The oil pressure determination method provided by the present invention can correct the vehicle's oil pressure based on various factors affecting oil pressure without increasing hardware costs, thereby ensuring safe engine operation.

[0051] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0053] Figure 1 is a flow chart of a method for determining engine oil pressure according to embodiment 1 of the present invention;

[0054] Figure 2 is a flow chart of a method for determining engine oil pressure according to a second embodiment of the present invention;

[0055] Figure 3 is a schematic diagram of a process for determining engine oil pressure according to a second embodiment of the present invention;

[0056] Figure 4 This is a schematic structural diagram of a device for determining engine oil pressure according to a third embodiment of the present invention;

[0057] Figure 5 It is a structural diagram of a vehicle implementing the fourth embodiment of the present invention. DETAILED DESCRIPTION

[0058] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0059] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0060] Example 1

[0061] Figure 1 A flowchart of a method for determining oil pressure is provided for the first embodiment of the present invention. This embodiment is applicable to the case of correcting the engine oil pressure. The method can be executed by an oil pressure determination device. The oil pressure determination device can be implemented in the form of hardware and / or software. The oil pressure determination device can be configured in a vehicle. Figure 1 As shown, the method includes:

[0062] S110 : After the vehicle is powered on, the vehicle stagnation time is determined based on the vehicle power-on time and the most recent power-off time.

[0063] Among them, the vehicle power-on time is the time when the vehicle is powered on after the vehicle engine is started, the most recent power-off time is the time when the vehicle is powered off most recently before the current vehicle power-on time, and the vehicle stagnation time is the length of time between the vehicle power-on time and the most recent power-off time.

[0064] In this embodiment, due to the long-term stagnation of the vehicle, the oil may be oxidized. The oil oxidation will lead to increased oil dilution and affect the oil pressure. Therefore, the oil pressure needs to be corrected according to the vehicle stagnation time.

[0065] S120: Determine the oil pressure after the vehicle is powered on according to the vehicle stagnation time.

[0066] In this embodiment, after determining the vehicle inactivity time, the corresponding post-vehicle oil pressure can be determined based on the different vehicle inactivity times. For example, two different oil pressure values ​​can be set. When the vehicle inactivity time exceeds a certain set time threshold, the larger value is used as the post-vehicle oil pressure, and when the vehicle inactivity time is less than the set time threshold, the smaller value is used as the post-vehicle oil pressure.

[0067] Optionally, the set time threshold can be determined based on the oil temperature when the vehicle is powered on. Generally, the lower the oil temperature when the vehicle is powered on, the larger the set time threshold. Specifically, after the vehicle is powered on, the vehicle stagnation time is determined based on the vehicle power-on time and the most recent power-off time. The current oil temperature is also obtained, and a corresponding time threshold is determined based on the current oil temperature. A determination is then made as to whether the vehicle stagnation time exceeds the time threshold. If so, the first oil pressure is determined as the oil pressure after the vehicle is powered on. Otherwise, the second oil pressure is determined as the oil pressure after the vehicle is powered on, where the first oil pressure is greater than the second oil pressure. Furthermore, the correspondence between oil temperature and time threshold can be obtained through testing during vehicle development and pre-set in the vehicle.

[0068] S130 . While the vehicle is in operation, determine a first compensation value and a second compensation value of the oil pressure according to the oil density and the road slope, respectively.

[0069] In this embodiment, after determining the oil pressure after the vehicle is powered on, after the vehicle enters the operating state, the vehicle's oil pressure will also be affected by factors such as oil density and road slope, and the oil pressure may decrease. Therefore, oil pressure compensation is also required in the vehicle operating state, and the compensation value for oil pressure compensation is determined based on the changes in real-time influencing factors.

[0070] The relationship between oil density and oil pressure can generally be expressed as follows: the higher the oil density, the higher the oil pressure. The relationship between road slope and oil pressure can generally be expressed as follows: the road slope causes the oil level to tilt; the greater the slope, the lower the oil pressure. Therefore, both oil density and road slope affect oil pressure, requiring adjustment based on the current oil density and road slope.

[0071] Optionally, the first compensation value for the oil pressure may be determined based on the oil density. If the current oil density is determined to be greater than a predetermined oil density threshold, the predetermined value may be determined as the first compensation value. The predetermined value may be obtained through testing during vehicle development and preset in the vehicle. If the current oil density is determined to be less than the predetermined oil density threshold, the first compensation value may be set to zero, i.e., no oil pressure compensation is performed in this case.

[0072] Similarly, the second compensation value for the oil pressure can be determined based on the road slope. If the current road slope is determined to be greater than a predetermined road slope threshold, a predetermined value is used as the second compensation value. This predetermined value can be obtained through testing and pre-set in the vehicle during vehicle development. If the current road slope is determined to be less than the predetermined road slope threshold, the second compensation value is set to zero, i.e., no oil pressure compensation is performed in this case.

[0073] S140 : Determine a target compensation value according to the first compensation value and the second compensation value, and determine the oil pressure in the vehicle operation state according to the target compensation value.

[0074] In this embodiment, after determining the first compensation value and the second compensation value, a target compensation value may be determined based on the two compensation values, and finally oil pressure compensation is performed using the target compensation value to determine the oil pressure in the vehicle operation state.

[0075] Optionally, the target compensation value may be determined based on the first compensation value and the second compensation value by taking the maximum of the first compensation value and the second compensation value as the target compensation value. Furthermore, the target compensation value may also be the minimum or average of the first compensation value and the second compensation value. The specific implementation method may be determined based on actual conditions and is not limited in this embodiment.

[0076] In an embodiment of the present invention, after a vehicle is powered on, the vehicle's stagnation time is first determined based on the vehicle's power-on time and the most recent power-off time. The vehicle's oil pressure after powering on is then determined based on the stagnation time. While the vehicle is operating, a first compensation value and a second compensation value for the oil pressure are determined based on the oil density and road slope, respectively. Finally, a target compensation value is determined based on the first and second compensation values, and the oil pressure during vehicle operation is determined based on the target compensation value. The oil pressure determination method provided by the present invention can correct the vehicle's oil pressure based on various factors affecting oil pressure without increasing hardware costs, thereby ensuring safe engine operation.

[0077] Example 2

[0078] Figure 2This is a flow chart of a method for determining oil pressure provided by the second embodiment of the present invention. This embodiment is a refinement of the above embodiment. Figure 2 As shown, the method includes:

[0079] S210: After the vehicle is powered on, determine the vehicle stagnation time based on the vehicle power-on time and the most recent power-off time.

[0080] Among them, the vehicle power-on time is the time when the vehicle is powered on after the vehicle engine is started, the most recent power-off time is the time when the vehicle is powered off most recently before the current vehicle power-on time, and the vehicle stagnation time is the length of time between the vehicle power-on time and the most recent power-off time.

[0081] In this embodiment, due to the long-term stagnation of the vehicle, the oil may be oxidized. The oil oxidation will lead to increased oil dilution and affect the oil pressure. Therefore, the oil pressure needs to be corrected according to the vehicle stagnation time.

[0082] S220: If the vehicle stagnation time is greater than the set time threshold, determine the oil consumption according to the oil level.

[0083] Among them, the oil level reflects the oil reserve in the vehicle, and the oil consumption during the vehicle's stagnation time can be determined based on the oil level.

[0084] Optionally, the method of calculating the oil consumption during the vehicle's stagnation time based on the oil level can be to record the initial oil level of the vehicle when it was most recently powered off, obtain the current oil level when the vehicle was powered on, and determine the oil consumption during the vehicle's stagnation time based on the level difference between the initial oil level and the current oil level.

[0085] S230: Determine the oil pressure after the vehicle is powered on according to the oil consumption.

[0086] In this embodiment, after the oil consumption is determined, the corresponding oil pressure can be determined according to the consumption and supplied to the vehicle.

[0087] In this embodiment, the method of determining the oil pressure after the vehicle is powered on based on the oil consumption can be: if the oil consumption is less than or equal to the set oil consumption threshold, determining a third compensation value of the oil pressure; determining the oil pressure after the vehicle is powered on based on the third compensation value, and storing the third compensation value as a pre-stored compensation value.

[0088] Specifically, a fuel consumption threshold can be preset. If the oil consumption during the vehicle's stagnation time, calculated from the oil level, does not exceed the fuel consumption threshold, oil pressure compensation is performed. The oil pressure compensation value can be a third compensation value. Optionally, the third compensation value can be determined based on the amount of oil consumption. The relationship between the third compensation value and the amount of oil consumption can be obtained through testing during vehicle development and pre-set in the vehicle. After determining the third compensation value, oil pressure compensation can be performed based on the third compensation value. For example, the sum of the current oil pressure and the third compensation value can be determined as the oil pressure after the vehicle is powered on. Furthermore, after determining the oil pressure after the vehicle is powered on, the third compensation value corresponding to this oil pressure compensation can be stored in the vehicle as a pre-stored compensation value.

[0089] Furthermore, if the vehicle stagnation time is less than or equal to a set time threshold, the oil pressure after the vehicle is powered on is determined based on a pre-stored compensation value; if the oil consumption is greater than a set fuel consumption threshold, an engine status warning is issued.

[0090] Specifically, when the vehicle's stagnation time is less than or equal to the set time threshold, the oil consumption can be omitted due to the short time, and the pre-stored compensation value stored in the vehicle can be directly obtained to perform oil pressure compensation; when the vehicle's stagnation time is greater than the set time threshold and the calculated oil consumption is greater than the set fuel consumption threshold, an abnormal situation may occur due to the large oil consumption, and the user can be given an engine status warning at this time.

[0091] S240: When the vehicle is in operation, obtain the density of the engine oil. If the density of the engine oil is less than or equal to a set density threshold, determine a first compensation value.

[0092] In this embodiment, when the vehicle is in operation, the oil pressure of the vehicle may be affected by the oil density and the oil pressure may decrease. Therefore, it is necessary to determine the first compensation value for oil pressure compensation according to the specific situation of the oil density.

[0093] Optionally, the oil density can be obtained using an oil density meter. Based on the current oil density measured by the oil density meter, a judgment is made. If the oil density is less than or equal to a set density threshold, a first compensation value is determined for oil pressure compensation. The first compensation value can be determined based on the oil density. The relationship between the first compensation value and the oil density can be determined through testing during vehicle development and pre-set in the vehicle. For example, a pre-set comparison table of first compensation values ​​and oil densities can be queried based on the oil density, and the corresponding first compensation value can be determined based on the currently measured oil density.

[0094] Optionally, the dilution degree of the engine oil may be determined comprehensively based on the engine oil density and the engine oil level, and the first compensation value may be determined based on the dilution degree of the engine oil.

[0095] Furthermore, a warning density threshold may be preset, and if the oil density is lower than the warning density threshold, an oil status alarm is issued.

[0096] S250: Determine an oil level coefficient according to the road slope and the engine speed, and determine a second compensation value according to the oil level coefficient.

[0097] In this embodiment, when the vehicle is in operation, the oil pressure of the vehicle may be affected by the liquid level coefficient and the oil pressure may decrease. Therefore, it is necessary to determine the second compensation value for oil pressure compensation according to the specific situation of the liquid level coefficient.

[0098] Alternatively, the engine inclination angle in the X / Y direction can be obtained using the vehicle slope sensor and filtered vehicle acceleration. The liquid level coefficient is then derived from the engine inclination angle and engine speed. A second compensation value is then determined based on the liquid level coefficient to perform oil pressure compensation. The second compensation value can be determined based on the liquid level coefficient. The relationship between the second compensation value and the liquid level coefficient can be determined through testing during vehicle development and pre-set in the vehicle. For example, a pre-set comparison table of the second compensation value and the liquid level coefficient can be consulted based on the oil density, and the corresponding second compensation value can be determined based on the currently calculated liquid level coefficient.

[0099] S260: Determine the maximum value between the first compensation value and the second compensation value, and determine the maximum value as the target compensation value.

[0100] In this embodiment, after determining the first compensation value and the second compensation value, the maximum value of the first compensation value and the second compensation value can be determined as the target compensation value based on the numerical values ​​of the first compensation value and the second compensation value, and then the refueling pressure compensation is performed with the target compensation value.

[0101] S270: Determine the oil pressure in the vehicle operating state according to the target compensation value.

[0102] In this embodiment, after the target compensation value is determined, the actual output oil pressure in the vehicle operation state can be determined according to the target compensation value.

[0103] Optionally, based on the current oil pressure, the sum of the current oil pressure and the target compensation value may be determined as the oil pressure in the vehicle operating state.

[0104] Figure 3This is a schematic diagram of the oil pressure determination process provided by this embodiment. As shown in the figure, after the vehicle is powered on, the vehicle's idle time is first determined. If the idle time is greater than a set time threshold, the oil consumption is determined. Otherwise, the oil pressure after the vehicle is powered on is determined based on a pre-stored compensation value. After determining the oil consumption, if the oil consumption is less than or equal to the set fuel consumption threshold, a third compensation value is determined based on the oil consumption and used to compensate for the oil pressure. Otherwise, an engine status warning is issued. While the vehicle is operating, a first compensation value and a second compensation value are determined based on the oil density and road slope, respectively. The oil density is obtained using an oil density meter. If the oil density is less than or equal to the set density threshold, the first compensation value is determined. The oil level coefficient is determined based on the road slope and engine speed, and the second compensation value is determined based on the level coefficient. Finally, a target compensation value is determined based on the first and second compensation values, and oil pressure compensation is performed to obtain the actual oil pressure during vehicle operation.

[0105] In an embodiment of the present invention, after the vehicle is powered on, the vehicle's stagnation time is determined based on the vehicle's power-on time and the most recent power-off time. If the vehicle's stagnation time is greater than a set time threshold, the oil consumption is determined based on the oil level. The oil pressure after the vehicle is powered on is then determined based on the oil consumption. The oil density is then obtained while the vehicle is operating. If the oil density is less than or equal to the set density threshold, a first compensation value is determined. The oil level coefficient is then determined based on the road slope and engine speed. A second compensation value is then determined based on the level coefficient. Finally, the maximum value between the first and second compensation values ​​is determined, and the maximum value is determined as the target compensation value. The oil pressure in the vehicle's operating state is then determined based on the target compensation value. The oil pressure determination method provided by an embodiment of the present invention can correct the vehicle's oil pressure based on various factors affecting the oil pressure without increasing hardware costs, thereby ensuring safe engine operation.

[0106] Example 3

[0107] Figure 4 This is a schematic diagram of the structure of a device for determining oil pressure provided by the third embodiment of the present invention. Figure 4 As shown, the apparatus includes: a vehicle stagnation time determination module 310 , a first oil pressure determination module 320 , a first compensation value and a second compensation value determination module 330 , and a second oil pressure determination module 340 .

[0108] The vehicle stagnation time determination module 310 is used to determine the vehicle stagnation time according to the vehicle power-on time and the most recent power-off time after the vehicle is powered on.

[0109] The first oil pressure determination module 320 is configured to determine the oil pressure after the vehicle is powered on according to the vehicle stagnation time.

[0110] The first compensation value and second compensation value determination module 330 is configured to determine a first compensation value and a second compensation value of the oil pressure according to the oil density and the road slope, respectively, when the vehicle is in operation.

[0111] The second oil pressure determination module 340 is configured to determine a target compensation value according to the first compensation value and the second compensation value, and determine the oil pressure in the vehicle operation state according to the target compensation value.

[0112] Optionally, the first oil pressure determination module 320 is further configured to:

[0113] If the vehicle's stagnation time is greater than a set time threshold, the oil consumption is determined based on the oil level; and the oil pressure after the vehicle is powered on is determined based on the oil consumption.

[0114] Optionally, the first oil pressure determination module 320 is further configured to:

[0115] If the oil consumption is less than or equal to the set oil consumption threshold, a third compensation value of the oil pressure is determined; the oil pressure after the vehicle is powered on is determined based on the third compensation value, and the third compensation value is stored as a pre-stored compensation value.

[0116] Optionally, the oil pressure determination device further includes a third oil pressure determination module 350, which is used to determine the oil pressure after the vehicle is powered on according to a pre-stored compensation value if the vehicle stagnation time is less than or equal to a set time threshold.

[0117] Optionally, the oil pressure determination device further includes a warning module 360 ​​for issuing an engine status warning if the oil consumption is greater than a set oil consumption threshold.

[0118] Optionally, the first compensation value and second compensation value determining module 330 is further configured to:

[0119] Obtain the oil density. If the oil density is less than or equal to a set density threshold, determine a first compensation value. Determine an oil level coefficient based on the road slope and the engine speed, and determine a second compensation value based on the level coefficient.

[0120] Optionally, the second oil pressure determination module 340 is further configured to:

[0121] Determine the maximum value between the first compensation value and the second compensation value; and determine the maximum value as the target compensation value.

[0122] The device for determining oil pressure provided in the embodiment of the present invention can execute the method for determining oil pressure provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method.

[0123] Example 4

[0124] Figure 5A schematic diagram of the structure of a vehicle provided in the fourth embodiment of the present invention is shown in FIG. Figure 5 As shown, the vehicle includes a controller 41, a storage device 42, an input device 43 and an output device 44; the number of controllers 41 in the vehicle can be one or more. Figure 5 In the figure, a controller 41 is taken as an example; the controller 41, the storage device 42, the input device 43 and the output device 44 in the vehicle can be connected by a bus or other means. Figure 5 The bus connection is taken as an example.

[0125] Storage device 42, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the method for determining oil pressure in the embodiments of the present invention (e.g., vehicle stop time determination module 310, first oil pressure determination module 320, first and second compensation value determination module 330, and second oil pressure determination module 340). Controller 41 executes the software programs, instructions, and modules stored in storage device 42 to execute various vehicle functions and data processing, thereby implementing the aforementioned method for determining oil pressure.

[0126] The storage device 42 may primarily include a program storage area and a data storage area. The program storage area may store an operating system and at least one application required for a function; the data storage area may store data generated based on the terminal's usage, etc. Furthermore, the storage device 42 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state memory device. In some examples, the storage device 42 may further include memory remotely located relative to the controller 41, and such remote memory may be connected to the vehicle via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0127] The input device 43 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the vehicle. The output device 44 may include a display device such as a display screen.

[0128] Example 5

[0129] A fifth embodiment of the present invention further provides a storage medium containing computer-executable instructions. When the computer-executable instructions are executed by a computer processor, the computer-executable instructions are used to perform a method for determining engine oil pressure. The method includes:

[0130] After the vehicle is powered on, the vehicle stagnation time is determined based on the vehicle power-on time and the most recent power-off time;

[0131] determining the oil pressure after the vehicle is powered on based on the vehicle stagnation time;

[0132] In a vehicle operation state, determining a first compensation value and a second compensation value of the oil pressure according to the oil density and the road slope respectively;

[0133] A target compensation value is determined according to the first compensation value and the second compensation value, and an oil pressure in a vehicle running state is determined according to the target compensation value.

[0134] Of course, the computer executable instructions of the storage medium provided by the embodiment of the present invention are not limited to the operations of the method described above, but can also execute the related operations in the oil pressure determination method provided by any embodiment of the present invention.

[0135] Through the above description of the implementation methods, those skilled in the art can clearly understand that the present invention can be implemented with the help of software and necessary general-purpose hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0136] It is worth noting that in the embodiment of the above-mentioned search device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of the present invention.

Claims

1. A method for determining oil pressure, characterized in that: include: After the vehicle is powered on, the vehicle stagnation time is determined based on the vehicle power-on time and the most recent power-off time; determining the oil pressure after the vehicle is powered on based on the vehicle stagnation time; In a vehicle operation state, determining a first compensation value of the oil pressure according to the oil density, and determining a second compensation value of the oil pressure according to the road slope; A target compensation value is determined according to the first compensation value and the second compensation value, and an oil pressure in a vehicle running state is determined according to the target compensation value.

2. The method according to claim 1, characterized in that Determining the oil pressure after the vehicle is powered on according to the vehicle stagnation time includes: If the vehicle stagnation time is greater than a set time threshold, determining the oil consumption based on the oil level; The oil pressure after the vehicle is powered on is determined according to the oil consumption.

3. The method according to claim 2, characterized in that Determining the oil pressure after the vehicle is powered on according to the oil consumption includes: If the oil consumption is less than or equal to a set oil consumption threshold, determining a third compensation value of the oil pressure; The oil pressure after the vehicle is powered on is determined according to the third compensation value, and the third compensation value is stored as a pre-stored compensation value.

4. The method according to claim 3, characterized in that The method further comprises: If the vehicle stagnation time is less than or equal to the set time threshold, the oil pressure after the vehicle is powered on is determined according to the pre-stored compensation value.

5. The method according to claim 3, characterized in that The method further comprises: If the oil consumption is greater than the set oil consumption threshold, an engine status warning is issued.

6. The method according to claim 1, characterized in that Determining a target compensation value according to the first compensation value and the second compensation value includes: determining a maximum value between the first compensation value and the second compensation value; The maximum value is determined as the target compensation value.

7. A device for determining oil pressure, characterized in that: include: The vehicle stagnation time determination module is used to determine the vehicle stagnation time based on the vehicle power-on time and the most recent power-off time after the vehicle is powered on; a first oil pressure determination module, configured to determine the oil pressure after the vehicle is powered on according to the vehicle stagnation time; a first compensation value and a second compensation value determining module, configured to determine a first compensation value for the oil pressure according to the oil density and a second compensation value for the oil pressure according to the road slope when the vehicle is in operation; The second oil pressure determination module is configured to determine a target compensation value according to the first compensation value and the second compensation value, and determine the oil pressure in a vehicle operation state according to the target compensation value.

8. A vehicle, characterized in that: The vehicle comprises: one or more controllers; a storage device for storing one or more programs; When the one or more programs are executed by the one or more controllers, the one or more controllers implement the method for determining the oil pressure according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining the oil pressure according to any one of claims 1 to 6 when executed.

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