A method, device, and medium for determining an oil fill level in a lubrication system

Abstract

The present application relates to a kind of methods for judging the oil addition of lubricating system, device and medium, lubricating system includes oil sump and oil, oil sump is located in the lower part of lubricating system and is used to contain oil, method includes: obtaining the minimum oil storage capacity in oil sump, minimum oil storage capacity is obtained by suspending hanging wall oil amount and the oil consumption of engine in the set oil change cycle;Obtain the maximum oil storage capacity in oil sump, the maximum oil storage capacity is obtained by the highest limit of oil;According to minimum oil storage capacity and maximum oil storage capacity, obtain the oil storage interval of oil sump;According to oil storage interval, obtain the oil addition interval of oil sump.Using this scheme, it is necessary to determine the interval of oil sump that can store oil, so it is necessary to obtain the minimum oil that can be stored in oil sump, i.e.minimum oil storage capacity, since the lubricating system is in the state of being running or has been running, there is a suspended hanging wall oil amount in the lubricating system;In addition, the oil consumption of oil in the set oil change cycle also needs to be considered.

Description

Technical Field

[0001] This invention relates to the technical field of lubrication systems, and in particular to a method, apparatus, and medium for determining the amount of engine oil added in a lubrication system. Background Technology

[0002] The engine is the core component of a vehicle. Because the engine generates significant frictional losses during operation, it is generally equipped with a lubrication system. In related technologies, this lubrication system typically includes an oil pump. The oil pump pumps oil from the oil pan at the bottom of the engine to the main oil passage via oil pipes. The oil then flows down the main oil passage through various components of the engine, providing lubrication and cooling. Finally, the oil flows back to the oil pan, forming a cycle.

[0003] In the existing technology, when adding engine oil to the lubrication system, it is difficult to judge the amount of engine oil added to the oil pan, which can easily lead to over-addition of engine oil. Summary of the Invention

[0004] To overcome the problem of inaccurate determination of the amount of engine oil added to the oil pan of the lubrication system in the prior art, the present invention provides a method, device and medium for determining the amount of engine oil added to the lubrication system.

[0005] In a first aspect, to solve the above-mentioned technical problems, the present invention provides a method for determining the amount of engine oil added in a lubrication system, the lubrication system including an oil pan and engine oil, the oil pan being located at the lower part of the lubrication system and used to contain the engine oil, the method comprising:

[0006] The minimum oil level in the oil pan is obtained by measuring the amount of oil adhering to the oil wall and the engine oil consumption within a set oil change cycle.

[0007] The maximum oil level in the oil pan is obtained, and the maximum oil level is obtained by the highest limit of the engine oil level.

[0008] The oil storage range of the oil pan is obtained based on the minimum oil storage volume and the maximum oil storage volume;

[0009] The required amount of engine oil to be added to the oil pan is determined based on the oil storage range.

[0010] In one embodiment,

[0011] The step of obtaining the minimum oil level in the oil pan includes:

[0012] The initial oil addition amount in the oil pan and the first suspended oil amount are obtained, and the first minimum oil level is obtained based on the difference between the initial oil addition amount and the first suspended oil amount; wherein, the first suspended oil amount corresponds to the lubrication system being in a working state or having just stopped.

[0013] The second minimum oil level in the oil pan is obtained, and the second minimum oil level corresponds to the oil pan being in an inclined state.

[0014] The minimum oil storage quantity is obtained by using the first minimum oil storage quantity and the second minimum oil storage quantity.

[0015] In one embodiment,

[0016] The step of obtaining the second minimum oil level in the oil pan includes:

[0017] The lowest oil level in the oil pan when the oil pan is at its maximum lateral tilt or maximum longitudinal tilt is obtained;

[0018] The second minimum oil level in the oil pan is obtained based on the minimum oil level.

[0019] In one embodiment,

[0020] The process of obtaining the minimum oil storage quantity through the first minimum oil storage quantity and the second minimum oil storage quantity includes:

[0021] Obtain the initial oil level in the oil pan when the lubrication system is operating normally;

[0022] The second oil level in the oil pan is obtained after a set time when the lubrication system has stopped working.

[0023] The second suspended wall-mounted oil quantity is obtained based on the first oil quantity and the second oil quantity;

[0024] The minimum oil storage amount is obtained by taking the larger of the first minimum oil storage amount and the second minimum oil storage amount, and the second suspended oil content.

[0025] In one embodiment, the lubrication system includes an oil pump that provides power for the flow of oil within the lubrication system;

[0026] The process of obtaining the initial oil addition amount in the oil pan includes:

[0027] Obtain the amount of oil pumped by the oil pump within a set time period;

[0028] The number of times the engine oil circulates within the lubrication system within a set time period is obtained;

[0029] The initial oil addition amount is obtained based on the pump oil volume and the number of cycles.

[0030] In one embodiment,

[0031] The method of obtaining the amount of oil pumped by the oil pump within a set time includes:

[0032] The pump oil volume is obtained through simulation calculation under set conditions, including:

[0033] The oil pressure requirements for each lubrication point, the length and inner diameter of each oil passage, the flow rate and pressure difference data of each lubrication structure, and the parameters of the oil used.

[0034] In one embodiment,

[0035] In obtaining the initial oil addition amount in the oil pan and the first suspended oil content, the first suspended oil content includes:

[0036] Oil level in the oil passage, oil level in the oil cooler, oil level in the oil filter, oil level on the oil wall, and suspended oil level.

[0037] In one embodiment, the lubrication system includes a crankshaft connecting rod envelope;

[0038] The step of obtaining the maximum oil level in the oil pan, wherein the maximum oil level is obtained by measuring the maximum limit of the engine oil level, includes:

[0039] The maximum oil level is determined by setting a minimum distance between the oil level and the crankshaft connecting rod envelope.

[0040] The maximum oil storage capacity is obtained based on the highest limit of the engine oil.

[0041] Secondly, the present invention also provides an apparatus for determining the amount of engine oil added to a lubrication system, the lubrication system including an oil pan, and the apparatus including a first oil quantity detection module, a second oil quantity detection module, and a determination module:

[0042] The first oil level detection module is used to obtain the minimum oil level in the oil pan. The minimum oil level is obtained by the amount of oil suspended on the wall and the oil consumption of the engine within a set oil change cycle.

[0043] The second oil level detection module is used to obtain the maximum oil level in the oil pan, which is obtained by the maximum limit of the engine oil level.

[0044] The judgment module is used to obtain the oil storage range of the oil pan based on the minimum oil storage volume and the maximum oil storage volume; and to obtain the range of engine oil to be added to the oil pan based on the oil storage range.

[0045] Thirdly, the present invention also provides a computer-readable storage medium having a computer program stored thereon.

[0046] When the computer program is executed by the processor, it implements a method for determining the amount of engine oil added to the lubrication system.

[0047] The beneficial effects of this invention are as follows: By obtaining the oil volume in the oil pan of a lubrication system that has already been used, the minimum and maximum oil volumes in the oil pan can be determined. Based on these minimum and maximum oil volumes, the oil storage range in the oil pan can be obtained. This allows for the determination of the required amount of engine oil to be added to the oil pan, facilitating reasonable planning of the amount of engine oil added and preventing the amount added from exceeding the specified range. Furthermore, this invention enables the lubrication system to provide engine oil flow on demand, reducing the shaft power consumption of the oil pump and thus helping to reduce engine fuel consumption. Attached Figure Description

[0048] Figure 1 This is a flowchart illustrating the method for determining the amount of engine oil added in a lubrication system according to the present invention.

[0049] Figure 2 This is a structural block diagram of the virtual device of the present invention;

[0050] Figure 3 This is a diagram of the internal structure of the computer device of the present invention. Detailed Implementation

[0051] The following embodiments are further explanations and supplements to the present invention and do not constitute any limitation on the present invention.

[0052] The following describes the embodiments of the present invention in conjunction with the accompanying drawings.

[0053] The calculation of the amount of engine oil to be added in this invention is based on the confirmation of the amount of engine oil to be added to the lubrication system based on the lubrication system that has been in operation; through the solution of this application, the amount of engine oil that needs to be added to the lubrication system when the oil replenishment interval is set is confirmed.

[0054] See Figure 1 A method for determining the amount of engine oil added in a lubrication system, the lubrication system including an oil pan and engine oil, the oil pan being located at the bottom of the lubrication system and used to contain the engine oil, the method comprising:

[0055] Step 110: Obtain the minimum oil level in the oil pan. The minimum oil level is obtained by the amount of oil suspended on the oil wall and the oil consumption of the engine within the set oil change cycle.

[0056] When determining the amount of engine oil to add to the lubrication system, it's necessary to first determine the range of engine oil that can be stored in the oil pan. Therefore, the minimum amount of engine oil that can be stored in the oil pan (i.e., the minimum oil level) is required. When determining the minimum oil level, since the lubrication system is either running or has already run, there will be some oil adhering to the system walls. Furthermore, since adding or checking the oil level is performed after a set time (the set oil change interval), the oil consumption within that interval must also be considered. In summary, when determining the minimum oil level in the oil pan, the parameters to consider include the amount of oil adhering to the system walls and the engine oil consumption within the set oil change interval.

[0057] In this embodiment, the amount of oil suspended on the wall is: within the lubrication system, due to the operation of the lubrication system, there is oil suspended on the wall, in the oil passages and in the air (i.e., the amount of oil that has not fallen into the oil pan). Therefore, when considering the minimum oil storage capacity of the oil pan, the amount of oil suspended and attached to the wall needs to be taken into account.

[0058] Step 120: Obtain the maximum oil level in the oil pan. The maximum oil level is obtained by checking the maximum oil level.

[0059] When determining the amount of engine oil to be added to the lubrication system, it is necessary to determine the range of engine oil that can be stored in the oil pan. Therefore, it is necessary to obtain the maximum amount of engine oil that can be stored in the oil pan (i.e., the maximum oil capacity). When limiting the maximum oil capacity, the limitation on the maximum vertical height of the engine oil can be used as a reference.

[0060] Step 130: Obtain the oil storage range of the oil pan based on the minimum and maximum oil storage volumes.

[0061] After obtaining the minimum and maximum oil levels, the minimum and maximum oil levels are combined to form an oil storage range, which is the range of capacity that the oil pan can hold for engine oil.

[0062] Step 140: Obtain the range of engine oil volume to be added to the oil pan based on the oil storage range.

[0063] After obtaining the oil storage range, the oil level in the oil pan is determined to identify the range within which engine oil needs to be added. Therefore, when adding engine oil to the oil pan, the amount of oil added simply needs to be within the identified range. In some embodiments, the oil amount is determined by taking the midpoint or upper-midpoint of the range, thus determining the required amount of oil to be added.

[0064] By employing the solution of this application, the oil volume in the oil pan of a lubrication system that has already been used is obtained. After determining the minimum and maximum oil volume in the oil pan, the oil storage range within the oil pan can be determined based on these minimum and maximum oil volumes. This allows for the determination of the required amount of engine oil to be added to the oil pan, facilitating the rational planning of the oil addition amount and preventing the oil volume from exceeding the specified range after addition. This invention enables the lubrication system to provide oil flow on demand, reducing the shaft power consumption of the oil pump and thus helping to reduce engine fuel consumption.

[0065] Specifically, steps 110 and 120 do not have a fixed order, and the sequential numbering of steps 110 and 120 does not constitute a limitation on the execution order of the two steps.

[0066] In some embodiments of this application, step 110, obtaining the minimum oil level in the oil pan, includes:

[0067] Step 111: Obtain the initial oil addition amount and the first suspended wall oil amount in the oil pan, and obtain the first minimum oil level based on the difference between the initial oil addition amount and the first suspended wall oil amount; wherein, the first suspended wall oil amount corresponds to the lubrication system being in working state or just stopped state.

[0068] Since the goal is to determine the minimum oil level in the oil pan, it is necessary to confirm the minimum oil level in the oil pan. Because the oil pan is located below the lubrication system and is used to collect oil, the oil can adhere to the walls or be suspended in the air at the corresponding position. Therefore, when the first suspended wall oil level is the maximum, the corresponding oil level in the oil pan is the minimum. Since some of the suspended and wall-attached oil will flow into the oil pan after the lubrication system stops running, the first suspended wall oil level is the maximum when the lubrication system is running or has just stopped, at which point the oil level in the oil pan is the minimum. Ideally, considering that some oil will drip into the oil pan when the engine stops, the first suspended wall oil level should be the maximum value obtained when the lubrication system is running.

[0069] Step 112: Obtain the second minimum oil level in the oil pan, which corresponds to the oil pan being tilted.

[0070] When determining the minimum oil level in the oil pan, the pan's condition, specifically whether it is tilted, must also be considered. A tilted oil pan affects the oil level, thus influencing the minimum oil level. Tilted oil pans correspond to driving maneuvers such as climbing hills, accelerating, and decelerating downhill. During these operations that affect the oil level, the oil level in the pan will tilt, but the oil will remain within the pan and will not leak out.

[0071] Specifically, steps 111 and 112 do not have a fixed order, and the sequential numbering of steps 111 and 112 does not constitute a limitation on the execution order of the two steps.

[0072] Step 113: Obtain the minimum oil storage quantity through the first minimum oil storage quantity and the second minimum oil storage quantity.

[0073] In some embodiments of this application, a first minimum oil level is obtained by measuring the first amount of oil suspended on the oil pan, and a second minimum oil level is obtained by measuring the tilted state of the oil pan. Since the working state corresponding to the first minimum oil level and the second minimum oil level needs to be met simultaneously in the oil pan, when obtaining the minimum oil level by measuring the first minimum oil level and the second minimum oil level, it is necessary to use the larger value of the first minimum oil level and the second minimum oil level to obtain the minimum oil level in order to avoid the problem of the oil level in the oil pan being too low.

[0074] In some embodiments of this application, step 112, obtaining the second minimum oil level in the oil pan, includes:

[0075] Step 112-1: Obtain the minimum oil level in the oil pan when the oil pan is at its maximum lateral tilt or maximum longitudinal tilt.

[0076] When considering the oil pan being tilted, the minimum oil level is determined by the minimum oil level corresponding to the maximum tilt in both directions (i.e., the minimum oil level when the oil pan is at its maximum lateral or longitudinal tilt). Since the horizontal distribution of the oil may change when the oil pan is tilted, the minimum oil level is obtained based on the extreme values ​​of the two tilt angles within the oil pan. To determine the minimum oil level, the maximum lateral tilt oil level is calculated, and the maximum longitudinal tilt oil level is calculated. The larger of these two values ​​is taken as the minimum oil level in the oil pan.

[0077] Step 112-2: Obtain the second minimum oil level in the oil pan based on the minimum oil level.

[0078] Based on the obtained minimum oil level, the corresponding second minimum oil level in the oil pan can be determined to facilitate further operations.

[0079] Specifically, steps 112-1 and 112-2 do not have a fixed order, and the sequential numbering of steps 112-1 and 112-2 does not constitute a limitation on the execution order of the two steps.

[0080] In some embodiments of this application, step 113, obtaining the minimum oil storage quantity through the first minimum oil storage quantity and the second minimum oil storage quantity, includes:

[0081] Step 113-1: Obtain the initial oil level in the oil pan when the lubrication system is operating normally.

[0082] When the lubrication system is operating normally, the corresponding oil pan is in normal operation, and the first oil content in the oil pan under this condition is obtained.

[0083] Step 113-2: Obtain the second oil level in the oil pan after the lubrication system has stopped working for a set time.

[0084] After the lubrication system stops working and a set time interval is reached, the oil level in the oil pan is stable. Some of the oil adhering to the walls and suspended in the lubrication system will flow into the oil pan, thus obtaining the second oil level. Therefore, it is necessary to specify that the second oil level should be obtained after the set time interval after the lubrication system stops working. If the second oil level is obtained immediately after the lubrication system stops working, the value of the second oil level will be too high. Therefore, the second oil level should be obtained after the set time interval after the lubrication system stops working. At this time, some of the oil adhering to the walls and suspended in the lubrication system will fall into the oil pan.

[0085] Step 113-3: Obtain the second suspended wall oil quantity based on the first oil quantity and the second oil quantity.

[0086] The second suspended oil content is the difference between the first oil content and the second oil content. Therefore, the second suspended oil content is the oil that enters the oil pan and is suspended within the oil pan during the set time after the lubrication system stops working.

[0087] Step 113-4: Obtain the minimum oil storage amount by taking the larger of the first minimum oil storage amount and the second minimum oil storage amount and the second suspended wall oil storage amount.

[0088] When considering the minimum oil storage capacity, it is necessary to take into account the amount of second suspended oil adhering to the oil pan after the lubrication system has stopped working for a set time. That is, to obtain the minimum oil storage capacity, we need to first take the larger value between the first minimum oil storage capacity and the second minimum oil storage capacity, and then add the second suspended oil adhering to the oil pan to obtain the minimum oil storage capacity. Here, the formula for calculating the minimum oil storage capacity can be listed as follows:

[0089] Minimum oil storage capacity = MAX(first minimum oil storage capacity, second minimum oil storage capacity) + second suspended oil storage capacity.

[0090] In some embodiments of this application, the lubrication system includes an oil pump, which provides power for the flow of oil within the lubrication system; step 111, obtaining the initial oil addition amount in the oil pan, includes:

[0091] Step 111-1: Obtain the amount of oil pumped by the oil pump within a set time period.

[0092] When the oil pump is pumping oil, the initial amount of oil to be added can be calculated by monitoring the amount of oil pumped within a set time.

[0093] Step 111-2: Obtain the number of times the engine oil circulates in the lubrication system within a set time.

[0094] After obtaining the amount of oil pumped by the oil pump within a set time, it is necessary to determine the number of times the oil pump circulates in the lubrication system within the set time in order to obtain the initial amount of oil to add.

[0095] Step 111-3: Obtain the initial oil addition amount based on the pump oil volume and the number of cycles.

[0096] To determine the initial oil level, you can calculate it using the corresponding formula. The formula for calculating the initial oil level is as follows:

[0097] Initial oil addition amount = pump oil volume / number of cycles.

[0098] In some embodiments of this application, step 111-1, obtaining the oil pumping volume of the oil pump within a set time period, includes:

[0099] The pump oil volume is obtained through simulation calculation under set conditions, including:

[0100] The oil pressure requirements for each lubrication point, the length and inner diameter of each oil passage, the flow rate and pressure difference data of each lubrication structure, and the parameters of the oil used.

[0101] When obtaining the oil volume in a lubrication system, relevant setting conditions need to be considered. These setting conditions are the factors that affect the oil volume. Therefore, the setting conditions include: the oil pressure requirements at each lubrication point, including oil pressure, speed, load, and oil temperature; the length and inner diameter of each oil passage, which can be obtained through a 3D oil passage model; the flow and pressure difference data of each lubrication structure, including pressure difference, flow rate, and oil temperature; and the parameters of the oil used, including viscosity grade and quality grade.

[0102] In some embodiments of this application, the initial amount of engine oil added to the oil pan and the first amount of oil suspended on the wall include: the amount of oil stored in the oil passage, the amount of oil stored in the oil cooler, the amount of oil stored in the oil filter, the amount of oil stored on the wall, and the amount of oil suspended in the oil.

[0103] Since the first suspended wall oil quantity is the amount of oil adhering to the wall and the amount of oil suspended in the lubrication system, the first suspended wall oil quantity needs to include the amount of oil stored in the oil passage, the amount of oil stored in the oil cooler, the amount of oil stored in the oil filter, the amount of oil stored on the wall, and the amount of oil suspended, etc.

[0104] In some embodiments of this application, the lubrication system includes a crankshaft connecting rod envelope;

[0105] In step 120, the maximum oil level in the oil pan is obtained, which is determined by the maximum oil level limit.

[0106] Step 121: Determine the maximum oil level by setting the minimum distance between the oil level and the crankshaft connecting rod envelope.

[0107] In existing technologies, there are conventional settings for the minimum distance between the oil level and the crankshaft connecting rod envelope to ensure that the oil can fully lubricate the crankshaft and connecting rod components. In this solution, the distance between the oil level and the crankshaft connecting rod envelope is not less than 8mm. Therefore, the minimum distance set in this solution is 8mm. Knowing the minimum distance, the maximum limit of the oil level can be determined based on this distance.

[0108] The minimum distance between the engine oil level and the crankshaft connecting rod envelope in the lubrication system is limited by the design of the oil dipstick and dipstick tube, as well as the requirements of engine operation. This minimum distance is also affected by various factors such as engine design and structure, lubrication method, oil performance, and driving conditions. To ensure adequate engine lubrication and stable performance, the oil level should be set and maintained strictly according to the manufacturer's recommendations and requirements.

[0109] Step 122: Obtain the maximum oil storage capacity based on the maximum oil level limit.

[0110] Once the maximum oil level is known, the maximum amount of oil remaining in the oil pan can be determined accordingly.

[0111] An apparatus, see Figure 2 The device is used to determine the amount of engine oil added to the lubrication system. The lubrication system includes an oil pan, and the device includes a first oil quantity detection module 210, a second oil quantity detection module 220, and a determination module 230.

[0112] The first oil level detection module 210 is used to obtain the minimum oil level in the oil pan. The minimum oil level is obtained by the amount of oil suspended on the wall and the oil consumption of the engine within the set oil change cycle.

[0113] The second oil level detection module 220 is used to obtain the maximum oil level in the oil pan. The maximum oil level is obtained by the highest limit of the engine oil level.

[0114] The judgment module 230 is used to obtain the oil storage range of the oil pan based on the minimum and maximum oil storage ranges; and to obtain the range of engine oil that needs to be added to the oil pan based on the oil storage range.

[0115] A computer-readable storage medium having a computer program stored thereon.

[0116] The steps of a computer program executed by a processor to determine the amount of engine oil added to the lubrication system are as follows:

[0117] The minimum oil level in the oil pan is determined by the amount of oil adhering to the oil wall and the engine oil consumption within the set oil change cycle.

[0118] The maximum oil level in the oil pan is determined by the maximum oil level limit.

[0119] The oil storage range of the oil pan is obtained based on the minimum and maximum oil storage volumes.

[0120] The range of engine oil required to be added to the oil pan is determined based on the oil storage range.

[0121] The computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0122] In one embodiment of this application, the present invention also provides an electronic device, including a memory, a processor, and a program stored in the memory and running on the processor, wherein the processor executes the program to perform the following steps:

[0123] The minimum oil level in the oil pan is determined by the amount of oil adhering to the oil wall and the engine oil consumption within the set oil change cycle.

[0124] The maximum oil level in the oil pan is determined by the maximum oil level limit.

[0125] The oil storage range of the oil pan is obtained based on the minimum and maximum oil storage volumes.

[0126] The range of engine oil required to be added to the oil pan is determined based on the oil storage range.

[0127] In one embodiment of this application, the present invention also provides a computer device, which may also be a terminal, and its internal structure diagram can be found in [reference needed]. Figure 3 As shown, the computer device includes a processor, memory, network interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface is used to communicate with external terminals via a network connection. The computer program is executed by the processor to implement a method for controlling sunshades on vehicle windows. The display screen can be an LCD screen or an e-ink screen. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad on the computer device casing, or an external keyboard, touchpad, or mouse.

[0128] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned computer-readable storage medium can be a non-transitory computer-readable storage medium, including: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks, and other media capable of storing program code; it can also be a transient computer-readable storage medium.

[0129] Those skilled in the art will recognize that this invention can be implemented as a system, method, or computer program product. Therefore, this disclosure can be embodied in the following forms: it can be entirely hardware, entirely software (including firmware, resident software, microcode, etc.), or a combination of hardware and software, generally referred to herein as a "circuit," "module," or "system." Furthermore, in some embodiments, the invention can also be implemented as a computer program product contained in one or more computer-readable media, which contains computer-readable program code. Computer-readable storage media can be, for example, but not limited to—electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof.

[0130] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0131] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for determining the amount of engine oil added in a lubrication system, characterized in that, The lubrication system includes an oil pan and engine oil, the oil pan being located at the bottom of the lubrication system and used to contain the engine oil, the method comprising: The minimum oil level in the oil pan is obtained by measuring the amount of oil adhering to the oil wall and the engine oil consumption within a set oil change cycle. The maximum oil level in the oil pan is obtained, and the maximum oil level is obtained by the highest limit of the engine oil level. The oil storage range of the oil pan is obtained based on the minimum oil storage volume and the maximum oil storage volume; The required amount of engine oil to be added to the oil pan is determined based on the oil storage range. The step of obtaining the minimum oil level in the oil pan includes: The initial oil addition amount and the first suspended oil amount in the oil pan are obtained, and the first minimum oil level is obtained based on the difference between the initial oil addition amount and the first suspended oil amount; wherein, the first suspended oil amount corresponds to the lubrication system being in a working state or having just stopped. The second minimum oil level in the oil pan is obtained, and the second minimum oil level corresponds to the oil pan being in an inclined state. Obtain the second suspended wall oil volume, which is the amount of suspended wall oil that enters the oil pan after the lubrication system has stopped working for a set time. The minimum oil level is obtained by taking the larger of the first minimum oil level and the second minimum oil level, the second oil level suspended on the wall, and the oil consumption of the engine within the set oil change cycle.

2. The method according to claim 1, characterized in that, The step of obtaining the second minimum oil level in the oil pan includes: The lowest oil level in the oil pan when the oil pan is at its maximum lateral tilt or maximum longitudinal tilt is obtained; The second minimum oil level in the oil pan is obtained based on the minimum oil level.

3. The method according to claim 1, characterized in that, The process of obtaining the second suspended oil content includes: Obtain the initial oil level in the oil pan when the lubrication system is operating normally; The second oil level in the oil pan is obtained after a set time when the lubrication system has stopped working. The second suspended wall oil quantity is obtained based on the difference between the first oil quantity and the second oil quantity.

4. The method according to claim 1, characterized in that, The lubrication system includes an oil pump, which provides power for the flow of oil within the lubrication system. The process of obtaining the initial oil addition amount in the oil pan includes: Obtain the amount of oil pumped by the oil pump within a set time period; The number of times the engine oil circulates within the lubrication system within a set time period is obtained; The initial oil addition amount is obtained based on the pump oil volume and the number of cycles.

5. The method according to claim 4, characterized in that, The amount of oil pumped by the oil pump within a set time period includes: The pump oil volume is obtained through simulation calculation under set conditions, including: The oil pressure requirements for each lubrication point, the length and inner diameter of each oil passage, the flow rate and pressure difference data of each lubrication structure, and the parameters of the oil used.

6. The method according to claim 1, characterized in that, In obtaining the initial oil addition amount in the oil pan and the first suspended oil content, the first suspended oil content includes: Oil level in the oil passage, oil level in the oil cooler, oil level in the oil filter, oil level on the oil wall, and suspended oil level.

7. The method according to claim 1, characterized in that, The lubrication system includes the crankshaft connecting rod envelope; The step of obtaining the maximum oil level in the oil pan, wherein the maximum oil level is obtained by measuring the maximum limit of the engine oil level, includes: The maximum oil level is determined by setting a minimum distance between the oil level and the crankshaft connecting rod envelope. The maximum oil storage capacity is obtained based on the highest limit of the engine oil.

8. An apparatus, characterized in that, The device is used to determine the amount of oil added to the lubrication system. The lubrication system includes an oil pan, and the device includes a first oil quantity detection module, a second oil quantity detection module, and a determination module. The first oil level detection module is used to obtain the minimum oil level in the oil pan. The minimum oil level is obtained by the amount of oil suspended on the wall and the oil consumption of the engine within a set oil change cycle. The second oil level detection module is used to obtain the maximum oil level in the oil pan, which is obtained by the maximum limit of the engine oil level. The judgment module is used to obtain the oil storage range of the oil pan based on the minimum oil storage volume and the maximum oil storage volume; and to obtain the range of engine oil to be added to the oil pan based on the oil storage range. The step of obtaining the minimum oil level in the oil pan includes: The initial oil addition amount and the first suspended oil amount in the oil pan are obtained, and the first minimum oil level is obtained based on the difference between the initial oil addition amount and the first suspended oil amount; wherein, the first suspended oil amount corresponds to the lubrication system being in a working state or having just stopped. The second minimum oil level in the oil pan is obtained, and the second minimum oil level corresponds to the oil pan being in an inclined state. Obtain the second suspended wall oil volume, which is the amount of suspended wall oil that enters the oil pan after the lubrication system has stopped working for a set time. The minimum oil level is obtained by taking the larger of the first minimum oil level and the second minimum oil level, the second oil level suspended on the wall, and the oil consumption of the engine within the set oil change cycle.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method of any one of claims 1 to 7.

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