Oil supply system with positive and negative rotating pump core, method and storage medium thereof

Abstract

The invention relates to the field of automobile oil pumps, in particular to an oil supply system and method with positive and negative rotating pump cores and a storage medium thereof.The oil supply system comprises an oil pump, the oil pump is provided with two ports, one port is used for feeding oil, the other port is used for discharging oil, forward rotation and reverse rotation can be conducted, and forward conveying and reverse conveying of oil are achieved; the main oil tank is provided with a port, and the port of the main oil tank and an oil inlet of an engine are connected to the two ports of the oil pump respectively; the auxiliary oil tank is provided with a port, and the port of the auxiliary oil tank and an oil inlet of an engine are connected to the same port of the oil pump; and the valve assembly is arranged on the port of the auxiliary oil tank and the oil inlet of the engine so as to control the port of the auxiliary oil tank and the oil inlet of the engine to be opened and closed. The device has the effects of reducing the number of oil pumps and simplifying the structure.

Description

Technical Field

[0001] The present application relates to the field of automobile oil pumps, and more particularly to an oil supply system, method and storage medium thereof having a positive and negative rotating pump core. Background Art

[0002] In fuel vehicles, because it is necessary to accurately control the amount of oil delivered from the fuel tank to the engine, and at the same time ensure the oil pump's own delivery efficiency when it is rotating, and consume as little energy as possible to deliver more oil to the engine, the forward rotation of the oil pump is specially designed, including the shape, lubrication system, etc. If it is reversed, the efficiency will be very low, and the delivery efficiency will be unstable because the shape and lubrication system are not suitable for the reverse working conditions. At the same time, there is no working condition where the engine oil needs to be pumped back into the fuel tank.

[0003] However, new fuel supply systems with multiple fuel tanks have emerged. For example, large trailers usually have multiple fuel tanks. At this time, a single fuel pump cannot meet the demand, and multiple fuel pumps are needed to be compounded, which leads to large occupied volume, increased vehicle weight, increased fuel consumption, increased complexity, and inconvenient maintenance. Summary of the invention

[0004] In order to improve the problem that a new oil supply system requires multiple oil pumps, the present application provides an oil supply system with a positive and negative rotating pump core, a method and a storage medium thereof.

[0005] The present application provides an oil supply system with a positive and negative rotating pump core, which adopts the following technical solution: An oil supply system with a positive and negative rotating pump core, comprising: The oil pump has two ports, one port is used for oil inlet and the other port is used for oil outlet, and can rotate forward and reverse to realize forward and reverse delivery of oil; A main oil tank has a port, and the port of the main oil tank and the oil inlet of the engine are respectively connected to the two ports of the oil pump; A secondary oil tank has a port, and the port of the secondary oil tank and the oil inlet of the engine are connected to the same port of the oil pump; The valve assembly is arranged on the port of the auxiliary oil tank and the oil inlet of the engine to control the opening and closing of the port of the auxiliary oil tank and the oil inlet of the engine.

[0006] By adopting the above technical scheme, the oil delivery path is regulated by the valve assembly, thereby reducing the probability of directly pumping the oil in the auxiliary tank into the engine when the oil pump is reversed, so that the oil in the auxiliary tank can only enter the main tank through the reverse rotation of the oil pump, and then the oil in the main tank is delivered to the engine through the forward rotation of the oil pump, so that the new oil supply system with multiple oil tanks only needs one oil pump, and at the same time avoids the problem of low efficiency of oil delivery caused by the reverse rotation of the oil pump affecting the oil delivery.

[0007] Optional, including: A valve detection component, used to detect the opening and closing state of the valve assembly, obtain a valve detection signal and output it; A liquid level detection component, used to detect the height of the oil level in the main oil tank and the auxiliary oil tank, obtain a liquid level detection signal and output it; The engine detection component is used to detect the working state of the engine, obtain the engine detection signal and output it; The data processing module receives the valve detection signal, the liquid level detection signal and the engine detection signal, performs data processing to obtain a processing signal and outputs it, and the processing signal can control the oil pump.

[0008] By adopting the above technical solution, it is possible to automatically determine whether the current vehicle condition allows the oil pump to be reversed, thereby improving automation and safety.

[0009] The present application provides an oil supply method with a positive and negative rotating pump core, which adopts the following technical solution: A method for supplying oil with a positive and negative rotating pump core, comprising: Acquire a supplementary signal, acquire the valve detection signal and the liquid level detection signal, and the processed signal includes an inversion signal; Determine a false touch signal through the liquid level detection signal, a preset liquid level oil amount threshold and the supplementary signal; The reversal signal is determined and outputted according to the false touch signal, the supplementary signal, the valve detection signal and a preset valve signal threshold.

[0010] By adopting the above technical solution, it is automatically determined whether the signal controlling the oil pump reversal is a false touch, thereby reducing the probability of the oil pump reversal due to a false touch during normal driving of the vehicle, affecting the normal operation of the engine, and improving safety.

[0011] Optional, including: Get gear data; Determine an oil level too low signal through the liquid level detection signal and the liquid level oil level threshold; The reversal signal is determined and outputted according to the gear data, the low oil signal and a preset supplementary gear threshold.

[0012] By adopting the above technical solution, it is automatically determined that the vehicle automatically switches to oil pump reversal in appropriate working conditions to replenish the main fuel tank with insufficient oil, which is convenient and quick.

[0013] Optionally, determining and outputting the reversal signal according to the gear data, the low oil signal and a preset supplementary gear threshold comprises: Obtain automatic reverse mode, brake data, vehicle speed data and timing data; Determining vehicle speed acceleration data using the vehicle speed data and the timing data; Determining a neutral signal by using the gear data and the supplementary gear threshold; The reversal signal is determined and outputted according to the neutral signal, the low oil signal, the vehicle speed acceleration data, the brake data and a preset neutral landslide threshold.

[0014] By adopting the above technical solution, it is automatically determined whether the vehicle is in a neutral landslide state. At this time, the driver only needs to brake without accelerating the engine. At this time, the gasoline supply between the oil pump and the engine is disconnected, and the time is fully utilized to refill the main fuel tank.

[0015] Optionally, determining the low oil level signal through the liquid level detection signal and the liquid level oil level threshold value includes: Obtaining weight data, fuel consumption data and initial fuel volume data, wherein the liquid level detection signal includes main fuel tank liquid level data and auxiliary fuel tank liquid level data; determining fuel consumption speed data using the fuel consumption data and the timing data; Determining the original driving time data through the fuel consumption speed data, the main fuel tank liquid level data and a preset liquid level oil amount threshold; Determining total energy consumption data by using the fuel consumption speed data and a preset conversion threshold; Determining driving power data by using the weight data, the vehicle speed data, the gear data and a preset power threshold; Determine weight loss impact time data by using the total energy consumption data, the fuel consumption speed data, the fuel density threshold and the driving power data; Determine estimated driving time data by using the weight loss impact time data and the original driving time data; Determine the insufficient time data by comparing the estimated driving time data with a preset driving time threshold; Determine the low oil level data by using the main oil tank liquid level data and the liquid level oil level threshold; An oil shortage signal is determined and outputted based on the oil shortage data and the time shortage data.

[0016] By adopting the above technical solution, the estimation of oil volume is more accurate and the calculation is more precise.

[0017] Optional, including: Determine the reverse oil quantity data by using the reverse signal and the auxiliary oil tank liquid level data; Determine the reverse residual oil quantity data by using the main oil tank liquid level data and the reverse oil quantity data; Determine the pipeline residual oil quantity data by using the timing data, the preset wall hanging time threshold and the auxiliary oil tank liquid level data; Determine the residual oil amount data of the oil pump by using the reverse residual oil amount data and the pipeline residual oil amount data; The new main oil tank liquid level data is determined by the oil pump residual oil volume data and the original main oil tank liquid level data, and replaces the original main oil tank liquid level data to participate in the calculation.

[0018] By adopting the above technical solution, the oil remaining in the main oil tank pipeline and the oil pump is included in the main oil tank, making the calculation more accurate.

[0019] The present application provides a computer-readable storage medium, which adopts the following technical solution: A computer-readable storage medium stores a computer program that can be loaded and executed by a processor for an oil supply method with a positive and negative rotating pump core.

[0020] By adopting the above technical solution, the computer program is stored in a computer-readable storage medium.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: 1. The new oil supply system with multiple oil tanks only needs one oil pump, while also avoiding the problem of low efficiency of oil pump reverse oil delivery affecting oil delivery.

[0022] 2. Automatically determine the current vehicle condition to allow the oil pump to reverse, improve automation and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a module schematic diagram of an oil supply system with a positive and negative rotating pump core in Example 1 of the present application.

[0024] Figure 2 It is a module schematic diagram of an oil supply system with a positive and negative rotating pump core in Example 2 of the present application.

[0025] Figure 3 It is a flow chart of an oil supply method with a positive and negative rotating pump core in Example 2 of the present application.

[0026] Figure 4It is a flowchart diagram of step S2 to step S22.

[0027] Figure 5 It is a flowchart diagram of step S3 to step S33.

[0028] Figure 6 It is a flowchart diagram of step S4 to step S45.

[0029] Figure 7 It is a flowchart diagram of step S45 to step S49.

[0030] Figure 8 It is a flowchart diagram of step S5 to step S54.

[0031] Explanation of the reference numerals: 1. oil pump; 2. main oil tank; 3. auxiliary oil tank; 4. valve assembly; 5. valve detection component; 51. liquid level detection component; 52. engine detection component; 53. data processing module. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-8 This application is described in further detail.

[0033] Embodiment 1 of the present application discloses an oil supply system having a positive and negative rotating pump core. Figure 1 The oil supply system with a positive and negative rotating pump core includes an oil pump 1, a main oil tank 2, an auxiliary oil tank 3 and a valve assembly 4. The oil pump 1 includes a motor, a blade and an oil delivery channel. The motor can drive the blade to rotate forward and reverse. The blade drives the oil to be delivered in the oil delivery channel. When the blade rotates forward and reverse, the delivery direction of the oil in the oil delivery channel is opposite. The two ends of the oil delivery channel are used for oil inlet and oil outlet respectively.

[0034] Reference Figure 1 The oil delivery channel of the oil pump 1 is between the port of the main oil tank 2 and the oil inlet of the engine, and the port of the auxiliary oil tank 3 is connected to the position of the oil delivery channel close to the engine. The valve assembly 4 includes at least two valves, which are respectively installed on the oil inlet of the engine and the port of the auxiliary oil tank 3.

[0035] The implementation principle of an oil supply system with a positive and negative rotating pump core in Example 1 of the present application is as follows: when supplying oil to the engine, the valve assembly 4 closes the port of the auxiliary oil tank 3 and opens the oil inlet of the engine. At this time, the oil pump 1 rotates forward to transport the oil from the main oil tank 2 into the engine. When it is necessary to supply oil to the main oil tank 2, the valve assembly 4 closes the oil inlet of the engine and opens the port of the auxiliary oil tank 3. At this time, the oil pump 1 reverses to transport the oil in the auxiliary oil tank 3 into the main oil tank 2.

[0036] Embodiment 2: Different from the first embodiment, the second embodiment of the present application discloses an oil supply system with a positive and negative rotating pump core. Figure 2 The oil supply system with a positive and negative rotating pump core also includes a valve detection component 5, a liquid level detection component 51, an engine detection component 52 and a data processing module 53. The valve detection component 5 can use an angular momentum sensor connected to the rotation axis of the valve of the valve assembly 4 to detect the current state of the valve assembly 4. The angle is the valve detection signal and is output. The liquid level detection component 51 can use a float, which is placed in the main oil tank 2 and the auxiliary oil tank 3. According to the different rotation angles of the float, the internal resistance of different gears is switched to obtain different liquid level detection signals and output them.

[0037] Reference Figure 2 The engine detection component 52 can be a wheel speed sensor for detecting the engine speed, or it can be read directly from the car system. Usually in the car system, the dashboard will obtain the engine speed. At this time, the engine detection signal can be obtained directly from it instead of installing an additional wheel speed sensor.

[0038] Reference Figure 2 The data processing module 53 includes a processor and a database. The database is used to store various threshold data, such as liquid level oil threshold, valve signal threshold, supplementary gear threshold and other threshold data. The processor receives data signals such as supplementary signal, gear data, valve detection signal, liquid level detection signal and engine detection signal, and then calls the corresponding threshold data from the database. After processing and calculating the data, the corresponding processing signal is obtained and output, which can be output to the user for viewing, or to control the oil pump 1 and the valve assembly 4.

[0039] The processor may include a central processing unit such as a CPU or MPU or a host system built around a CPU or MPU, including hardware or software. After the meter has a processor, people can freely control the metering instrument through programming to make it run according to people's wishes. The processor can control local measurement transmission, remote measurement transmission, remote communication, etc. through internal protocols. Internal protocols refer to all protocols that achieve mutual communication or links within the same metering instrument or the same system, including: human-computer interaction protocols, software / hardware (interface) protocols, chip bus (C-Bus) protocols, internal bus (I-Bus) protocols, etc. Part or all of the protocols. With the development of integrated circuit technology, some protocols that belong to the external bus (E-Bus) protocol are also classified as internal protocols after the external bus (E-Bus) is integrated into the chip.

[0040] Embodiment 2 of the present application discloses an oil supply method with a positive and negative rotating pump core. Figure 3 The oil supply method with a positive and negative rotating pump core comprises the following steps: S1, obtaining a supplementary signal, obtaining a valve detection signal and a liquid level detection signal, and processing the signal including a reversal signal; S11, determining a false touch signal through a liquid level detection signal, a preset liquid level oil level threshold and a supplementary signal; S12, determining and outputting a reversal signal through the false touch signal, the supplementary signal, the valve detection signal and the preset valve signal threshold.

[0041] In detail: the replenishment signal is input by the user, and is a control signal for actively replenishing the oil in the auxiliary oil tank 3 to the main oil tank 2. At this time, step S11 will be entered to determine whether it is a false touch. For example, the liquid level oil threshold is set to [20%, 95%], indicating that the oil level is too low if it is below 20%, and 95% means that the oil level is very sufficient. If the liquid level detection signal is 96%, which is greater than 95%, and a replenishment signal is received, it is determined to be a false touch, and a false touch signal indicating a false touch is output. If the liquid level detection signal is 80%, which is between 20% and 95%, a false touch signal indicating a non-false touch is output, and the valve assembly 4 is controlled according to the false touch signal, and then the valve detection signal is used to determine whether the valve assembly 4 is working correctly. The reverse valve signal threshold is set to [a, b]. If the two valve detection signals received are a and b respectively, it indicates correct operation. At this time, a reverse signal is output to control the oil pump 1 to reverse.

[0042] Reference Figure 4 , further comprising the following steps: S2, obtaining gear data; S21, determining an oil level too low signal through a liquid level detection signal and a liquid level oil level threshold; S22, determining and outputting a reversal signal based on the gear data, the low oil signal and the preset supplementary gear threshold.

[0043] In detail: the gear data is the data of the current gear status obtained from the automobile system, for example, the current vehicle is in D gear, R gear, P gear or N gear; the supplementary gear threshold is set to P gear and N gear. If the liquid level detection signal is 15% and lower than 20%, it means that the oil level is too low, and a low oil level signal is obtained. If the gear data received at this time is P gear or N gear, a reversal signal is output to replenish the main fuel tank 2.

[0044] Reference Figure 5 , step S22 further comprises the following steps: S3, obtaining automatic reversing mode, braking data, vehicle speed data and timing data; S31, determining vehicle speed acceleration data through vehicle speed data and timing data; S32, determining a neutral signal through the gear data and the supplementary gear threshold; S33, determining and outputting a reversal signal through the neutral gear signal, the low fuel signal, the vehicle speed acceleration data, the braking data and the preset neutral gear landslide threshold.

[0045] Details: The automatic reverse mode is turned on by the user. If it is turned on, the process proceeds to step S31. If it is not turned on, the subsequent steps will not be entered. The brake data is the signal data of whether the brake is pressed. If the timing data is 0min1s, the vehicle speed data is 80km / h, the timing data is 0min2s, the vehicle speed data is 79km / h, and the timing data is 0min3s, the vehicle speed data is 78km / h, then the vehicle speed acceleration data can be obtained as ((79-80)+(78-79)) / 2=-1. If it is the gear data If it is represented as neutral, a neutral signal representing neutral can be obtained. Assuming the neutral landslide threshold is (-2<vehicle speed acceleration data<2, brake, neutral), it means that the user is stepping on the brake, the vehicle is in neutral and the speed data is accelerating in the range of -2-+2, that is, the brake data represents braking, the neutral signal represents neutral, and the vehicle speed acceleration data is in the range of [-2,2], then it is judged that the vehicle is in neutral landslide, and at the same time, a low oil signal representing that the oil amount is too low is received. At this time, a reversal signal is output to replenish the main fuel tank 2.

[0046] Reference Figure 6 and Figure 7 , step S21 further comprises the following steps: S4, obtaining fuel consumption data and initial fuel volume data, the liquid level detection signal includes main fuel tank liquid level data and auxiliary fuel tank liquid level data; S41, determining fuel consumption speed data through fuel consumption data and timing data; S42, determining the original driving time data through the fuel consumption speed data, the main fuel tank liquid level data and a preset liquid level oil amount threshold; S43, determining total energy consumption data by using the fuel consumption speed data and a preset conversion threshold; S44, determining driving power data according to weight data, vehicle speed data, gear position data and a preset power threshold; S45, determining weight loss impact time data through total energy consumption data, fuel consumption speed data, fuel density threshold and driving power data; S46, determining estimated driving time data by using the weight loss impact time data and the original driving time data; S47, determining the time-to-insufficient data by comparing the estimated driving time data with a preset driving time threshold; S48, determining the oil level too low data through the main oil tank liquid level data and the oil level threshold; S49, determining and outputting a low oil level signal based on the low oil level data and the low time data.

[0047] In detail: the fuel consumption data is the data of the engine's fuel consumption, which can be obtained by the amount of fuel delivered into the engine. The initial fuel volume data is obtained by the liquid level height in the main fuel tank 2 when the car is started. The fuel consumption data is combined with the timing data. For example, if the timing data is 1min1s, the fuel consumption data is 19L, and the timing data is 5min1s, the fuel consumption data is 20L, then the fuel consumption speed data can be obtained as (20-19) / (5-1)=0.25L / min. The liquid level oil volume threshold is the relationship between the liquid level height and the oil volume. If the liquid level oil volume threshold is 0.5L / cm, it means that every 1cm high liquid level height means that there is 0.5L of oil in the tank. At this time, the detected main tank liquid level data can be used to obtain the oil volume in the main tank 2, and then the oil volume in the main tank 2 is divided by the fuel consumption speed data to know how long the vehicle can travel with the oil in the main tank 2, which is the original driving time data. The weight data can be detected by a pressure sensor or manually input by a user. The power threshold is the relationship between the weight of the vehicle, the speed and the power of the engine. For example, the power threshold is F=M*V*k, where F is the power provided by the engine, i.e., the driving power data, M is the current weight of the vehicle, i.e., the weight data, V is the speed of the vehicle, i.e., the speed data, k is a coefficient, and F is the power required for the vehicle to travel. The conversion threshold is how much oil can be converted into how much energy, which can be electrical energy or mechanical energy. F represents mechanical energy, but the vehicle will have more consumption during driving. For example, low beam lights, high beam lights, brake lights, air conditioners, etc. all require oil to provide electrical energy. Therefore, the fuel consumption speed data combined with the conversion threshold can obtain the data on the total energy that can be generated by the current fuel consumption speed, i.e., the total energy consumption data, and then the kinetic energy required for the vehicle of the current weight to travel at the current speed is subtracted, i.e., the deceleration driving power data, and the remaining energy is the non-kinetic energy such as the air conditioner. If the road conditions such as uphill or downhill are encountered, the parameter of the vehicle tilt angle can be added.

[0048] By combining the fuel consumption speed with the density of the oil, that is, the fuel consumption speed data with the oil density threshold, the weight of the consumed oil, that is, the data of the vehicle weight reduction, can be obtained. At this time, return to step S44, and the weight data in the driving power data calculation will continue to decrease, which means that in the future, if the vehicle speed is maintained at the same, the kinetic energy required by the engine will become less and less, but the energy consumed by non-kinetic energy such as air conditioning remains unchanged. Therefore, combined with the total energy consumption data, it can be obtained that as the kinetic energy required by the engine becomes less and less, the driving time is extended. This extended time is the weight reduction impact time data, and then this extended time is added to the original driving time data to obtain the corrected More accurate time data is obtained, which is the estimated driving time data. Suppose the driving time threshold is 30 minutes, it means that when the driving time is less than 30 minutes, the driving time is too short. If the estimated driving time data is less than 30 minutes, the too little time data indicating that the time is too short is obtained. If the liquid level height indicated by the main tank liquid level data is lower than the height indicated by the liquid level oil level threshold, the too little oil data indicating that the oil level is too short is output. If any one of the too little oil data and the too little time data indicates that the time is too short or the oil level is too short, a too little oil signal is output to realize the subsequent automatic refueling of the main tank 2 from the auxiliary tank 3, or to remind the user to stop and refuel.

[0049] Reference Figure 8 , further comprising the following steps: S5, determining the reverse oil volume data through the reverse signal and the auxiliary oil tank liquid level data; S51, determining reverse residual oil quantity data through main oil tank liquid level data and reverse oil quantity data; S52, determining the amount of oil remaining in the pipeline through the timing data, the preset wall hanging time threshold and the auxiliary oil tank liquid level data; S53, determining the residual oil amount data of the oil pump by reversing the residual oil amount data and the residual oil amount data of the pipeline; S54, determining new main oil tank liquid level data through the oil pump residual oil volume data and the original main oil tank liquid level data, and replacing the original main oil tank liquid level data to participate in the calculation.

[0050] In detail: after the reversal signal is output, the auxiliary tank liquid level data is received, and the amount of oil pumped from the auxiliary tank 3 to the main tank 2 can be obtained according to the amount of the auxiliary tank liquid level reduction, which is the reversal oil volume data. This data represents the amount of oil pumped from the auxiliary tank 3, and according to the main tank liquid level data, the increase in the liquid level in the main tank 2 is also judged. The increased liquid level is the amount of oil entering the main tank 2, and the difference between this oil volume and the reversal oil volume data represents the residual flow on the inner wall of the delivery pipeline of the oil pump 1, the pipeline of the main tank 2 and the pipeline of the auxiliary tank 3, which is the reversal residual oil volume data; assuming that the wall hanging time threshold is 30min, after the reversal of the oil pump 1 controlled by the reversal signal ends, the timing data exceeds 30min , then the auxiliary tank liquid level data is obtained again. At this time, the auxiliary tank liquid level data will be higher than when the reversal signal just ends, which means that the oil remaining on the inner wall of the auxiliary tank 3 pipeline has returned to the auxiliary tank 3, and the increased liquid level height is the amount of oil remaining on the inner wall of the auxiliary tank 3 pipeline, which is the pipeline residual oil data; and the pipeline residual oil data is subtracted from the reversed residual oil data, which means the amount of oil remaining on the inner wall of the delivery channel of the oil pump 1 and the amount of oil remaining on the inner wall of the pipeline of the main tank 2, which is the oil pump residual oil data, and the oil amounts corresponding to the two places will eventually be transported into the engine by the oil pump 1, so they can be counted as the oil amount in the main tank 2, so the main tank liquid level data is corrected.

[0051] Embodiment 2 of the present application discloses a computer-readable storage medium. Figure 1 A computer-readable storage medium stores a computer program that can be loaded and executed by a processor for an oil supply method with a positive and negative rotating pump core.

[0052] Computer-readable storage media include, for example, various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An oil supply system with a positive and negative rotating pump core, characterized in that: include: The oil pump (1) has two ports, one port for oil inlet and the other port for oil outlet, and can rotate forward and reverse to achieve forward and reverse oil delivery; A main oil tank (2) has a port, and the port of the main oil tank (2) and the oil inlet of the engine are respectively connected to the two ports of the oil pump (1); The auxiliary oil tank (3) has a port, and the port of the auxiliary oil tank (3) and the oil inlet of the engine are connected to the same port of the oil pump (1); The valve assembly (4) is arranged on the port of the auxiliary oil tank (3) and the oil inlet of the engine to control the opening and closing of the port of the auxiliary oil tank (3) and the oil inlet of the engine.

2. The oil supply system with a positive and negative rotating pump core according to claim 1, characterized in that: include: A valve detection component (5) is used to detect the opening and closing state of the valve assembly (4), obtain a valve detection signal and output it; A liquid level detection component (51) is used to detect the height of the oil level in the main oil tank (2) and the auxiliary oil tank (3), obtain a liquid level detection signal and output it; An engine detection component (52) is used to detect the working state of the engine, obtain an engine detection signal and output it; A data processing module (53) receives the valve detection signal, the liquid level detection signal and the engine detection signal, performs data processing to obtain a processed signal and outputs it, wherein the processed signal can control the oil pump (1).

3. A method for supplying oil with a positive and negative rotating pump core, using the oil supply system with a positive and negative rotating pump core according to claim 2, characterized in that: include: Acquire a supplementary signal, acquire the valve detection signal and the liquid level detection signal, and the processed signal includes an inversion signal; Determine a false touch signal through the liquid level detection signal, a preset liquid level oil amount threshold and the supplementary signal; The reversal signal is determined and outputted according to the false touch signal, the supplementary signal, the valve detection signal and a preset valve signal threshold.

4. The oil supply method with a positive and negative rotating pump core according to claim 3, characterized in that: include: Get gear data; Determine an oil level too low signal through the liquid level detection signal and the liquid level oil level threshold; The reversal signal is determined and outputted according to the gear data, the low oil signal and a preset supplementary gear threshold.

5. The oil supply method with a positive and negative rotating pump core according to claim 4, characterized in that: The reversal signal is determined and outputted through the gear data, the low oil signal and a preset supplementary gear threshold, including: Obtain automatic reverse mode, brake data, vehicle speed data and timing data; Determining vehicle speed acceleration data using the vehicle speed data and the timing data; Determining a neutral signal by using the gear data and the supplementary gear threshold; The reversal signal is determined and outputted according to the neutral signal, the low oil signal, the vehicle speed acceleration data, the brake data and a preset neutral landslide threshold.

6. The oil supply method with a positive and negative rotating pump core according to claim 5, characterized in that: Determining the oil level too low signal through the liquid level detection signal and the liquid level oil level threshold comprises: Obtaining weight data, fuel consumption data and initial fuel volume data, wherein the liquid level detection signal includes main fuel tank liquid level data and auxiliary fuel tank liquid level data; determining fuel consumption speed data using the fuel consumption data and the timing data; Determining the original driving time data through the fuel consumption speed data, the main fuel tank liquid level data and a preset liquid level oil amount threshold; Determining total energy consumption data by using the fuel consumption speed data and a preset conversion threshold; Determining driving power data according to the weight data, the vehicle speed data, the gear data and a preset power threshold; Determine weight loss impact time data by using the total energy consumption data, the fuel consumption speed data, the fuel density threshold and the driving power data; Determine estimated driving time data by using the weight loss impact time data and the original driving time data; Determine the insufficient time data by comparing the estimated driving time data with a preset driving time threshold; Determine the low oil level data by using the main oil tank liquid level data and the liquid level oil level threshold; An oil shortage signal is determined and outputted based on the oil shortage data and the time shortage data.

7. The oil supply method with a positive and negative rotating pump core according to claim 6, characterized in that: include: Determine the reverse oil quantity data by using the reverse signal and the auxiliary oil tank liquid level data; Determine the reverse residual oil quantity data by using the main oil tank liquid level data and the reverse oil quantity data; Determine the pipeline residual oil quantity data by using the timing data, the preset wall hanging time threshold and the auxiliary oil tank liquid level data; Determine the residual oil amount data of the oil pump by using the reverse residual oil amount data and the pipeline residual oil amount data; The new main oil tank liquid level data is determined by the oil pump residual oil volume data and the original main oil tank liquid level data, and replaces the original main oil tank liquid level data to participate in the calculation.

8. A computer-readable storage medium, characterized in that: A computer program is stored which can be loaded by a processor and executes the oil supply method with a positive and negative rotating pump core as claimed in any one of claims 3 to 7.

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