Vehicle motor oil cooling control system and method

By designing the vehicle motor oil cooling control system, using closed-loop control and bus information transmission, the problems of temperature and flow control errors and communication difficulty of the motor oil cooling system are solved, and the effect of precise control and oil saving is achieved.

CN119200695AInactive Publication Date: 2024-12-27CHINA FAW CO LTD

Patent Information

Application Number
CN202411116185.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-08-14
Publication Date
2024-12-27
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing motor oil cooling system has large errors in temperature and flow control, and the communication operation is difficult, so it is impossible to effectively simulate the real-time changes in the oil cooling mode of the whole vehicle.

Method used

A complete vehicle motor oil cooling control system is designed, including control system, oil tank, cooling system, motor and oil pump. By setting up a control system, the oil pump and cooling system can be controlled to realize closed-loop circulation of oil and real-time temperature and flow feedback. , improve control accuracy and reduce communication operation difficulty through bus information transmission.

Benefits of technology

Accurate control of motor oil flow and temperature, saves oil loss, reduces the difficulty of communication operation, and improves the accuracy and efficiency of the control system.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The embodiment of the invention provides a whole vehicle motor oil cooling control system and method. The system comprises a control system, an oil tank, a cooling system, a motor, a heat exchanger and an oil pump. The control system is connected with the oil tank, the cooling system, the motor and the oil pump, the cooling system is connected with the heat exchanger, the oil pump and the heat exchanger are both arranged on the oil tank, and the heat exchanger is connected with the oil pump and the motor; the control system is arranged to control the oil pump of the oil tank, the cooling system is arranged to control the heat exchanger, oil of the oil pump is conveyed to the motor after being subjected to heat exchange through the heat exchanger, the motor feeds back flow and temperature information of the oil to the control system in real time, and closed-loop control is achieved. Therefore, the control system can control the flow and temperature of the oil of the motor, the control precision is improved, the oil loss is reduced, and the communication operation difficulty is reduced.
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Description

Technical Field

[0001] The present application relates to the technical field of motor oil cooling control, and in particular to a vehicle motor oil cooling control system and method. Background Art

[0002] With the rapid development of new energy electric drive, motor cooling nowadays mostly adopts oil cooling, which has higher cooling capacity than traditional coolant cooling. As for the motor oil cooling system currently used in the laboratory, there are large errors in temperature and flow control accuracy, and it cannot simulate the real-time changes of the vehicle oil cooling method. Moreover, the oil cooling pipeline can only implement constant temperature cross-flow control, and CAN communication with the test bench cannot be performed, which makes the operation difficult. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a vehicle motor oil cooling control system and method to solve the problem that the temperature and flow control of the existing motor oil cooling system often have large errors and the communication operation is difficult.

[0004] In a first aspect, an embodiment of the present application provides a vehicle motor oil cooling control system control system, comprising: a control system, a fuel tank, a cooling system, a motor, a heat exchanger and an oil pump; the control system is connected to the fuel tank, the cooling system, the motor and the fuel pump, the cooling system is connected to the heat exchanger, the fuel pump and the heat exchanger are both arranged on the fuel tank, the motor is arranged directly above the fuel tank, and the heat exchanger is connected to the fuel pump and the motor;

[0005] The control system is used to issue control instructions to control the operation of the oil pump, so as to control the oil pump to extract oil from the oil tank and transmit it to the heat exchanger; the control system is also used to send heat exchange instructions to the cooling system to control the cooling system to adjust the heat exchange action of the heat exchanger, instructing the heat exchanger to transfer the oil to the motor after heat exchange; the motor returns oil to the oil tank and feeds back the temperature and flow information of the oil to the control system in real time through the motor MCU.

[0006] In the above implementation process, a control system is set to control the oil pump of the oil tank, and a cooling system is set to control the heat exchanger. The oil of the oil pump is transported to the motor after heat exchange through the heat exchanger. The motor feeds back the oil flow and temperature information to the control system in real time to achieve closed-loop control. The control system can control the oil flow and temperature of the motor, improve control accuracy, save oil loss, and reduce the difficulty of communication operations.

[0007] Furthermore, it also includes a bus box, and the control system is connected to the oil pump, the cooling system and the motor MCU through the bus box; the oil pump is provided with a low-voltage wiring harness interface connected to the bus box; the oil tank is also provided with a low-voltage power supply, and the low-voltage power supply is provided with a low-voltage power supply interface, and the low-voltage power supply interface is connected to the oil pump.

[0008] In the above implementation process, the control system and the oil pump, cooling system and motor MCU all perform synchronous bus information transmission to achieve the effect of closed-loop control.

[0009] Furthermore, the heat exchanger is provided with an oil pump oil pipe for connecting to the oil pump, a motor oil pipe for connecting to the motor, a water inlet pipe for connecting to the cooling system, and a water outlet pipe for connecting to the cooling system.

[0010] In the above implementation process, the oil of the oil pump enters the heat exchanger from the oil pump oil pipe, flows out from the motor oil pipe and enters the motor power supply machine for operation. At the same time, the heat exchanger is connected to the cooling system through the water inlet pipe and the water outlet pipe to realize temperature alternation and perform heat exchange treatment on the oil flowing into the motor.

[0011] Furthermore, the oil in the oil tank enters the oil pump through the oil pump inlet filter.

[0012] In the above implementation process, the oil pump oil inlet filter plays a role in filtering oil impurities.

[0013] Furthermore, the oil tank is provided with a motor oil return inlet, the motor is connected to the motor oil return inlet, and a filter is provided in the motor oil return inlet.

[0014] In the above implementation process, the oil flows out from the bottom of the motor through the motor, and after being filtered by the filter, flows into the oil tank through the motor return oil inlet, completing an oil cycle, ensuring the recycling of the oil and saving oil loss.

[0015] Furthermore, the fuel tank is also provided with a fuel filling port, a fuel tank cap and a liquid level display, and the fuel tank cap is sleeved on the fuel filling port.

[0016] In the above implementation process, the liquid level display can observe the amount of oil in the oil tank, and the oil tank can be filled with oil through the refueling port. The oil cap is used to protect the oil in the oil tank from environmental pollution.

[0017] In a second aspect, the present application provides a vehicle motor oil cooling control method, which is applied to the vehicle motor oil cooling control system as described above, including:

[0018] The control system issues a control instruction to control the oil pump to operate, so as to control the oil pump to extract oil from the oil tank and transmit it to the heat exchanger;

[0019] The control system sends a heat exchange instruction to the cooling system to control the cooling system to adjust the heat exchange action of the heat exchanger, and instructs the heat exchanger to transfer the oil to the motor after exchanging heat;

[0020] The motor returns oil to the oil tank and feeds back oil temperature and flow information to the control system in real time through the motor MCU.

[0021] Furthermore, it also includes:

[0022] The control system issues a control instruction to control the speed of the oil pump according to the flow information fed back by the motor MCU, so as to control the flow rate of the oil pumped by the oil pump;

[0023] The control system issues a control instruction to control the heat exchange temperature of the cooling system according to the temperature information fed back by the motor MCU, so as to perform temperature control on the heat exchanger and the motor.

[0024] In a third aspect, an embodiment of the present application provides an electronic device, including:

[0025] A processor, a memory and a bus, wherein the processor is connected to the memory via the bus, and the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, they are used to implement the vehicle motor oil cooling control system control method as described above.

[0026] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a server, the control method of the vehicle motor oil cooling control system as described above is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the oil tank structure of a vehicle motor oil cooling control system provided in an embodiment of the present application;

[0029] Figure 2 It is a schematic diagram of the internal structure of an oil tank of a vehicle motor oil cooling control system provided in an embodiment of the present application;

[0030] Figure 3It is a schematic diagram of the filter structure of an oil tank of a vehicle motor oil cooling control system provided in an embodiment of the present application;

[0031] Figure 4 It is a schematic diagram of the structure of a heat exchanger of an oil tank of a vehicle motor oil cooling control system provided by an embodiment of the present application;

[0032] Figure 5 A flow chart of a control method for a vehicle motor oil cooling control system provided in an embodiment of the present application;

[0033] Figure 6 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application;

[0034] Among them, 10, low-voltage wiring harness interface; 20, oil pump; 30, heat exchanger; 40, low-voltage power supply interface; 50, low-voltage power supply; 60, fuel tank cap; 70, motor oil return inlet; 80, filter; 90, liquid level display; 100, oil pump oil inlet filter; 110, fuel tank; 120, oil pump oil pipe; 130, motor oil pipe; 140, water inlet pipe; 150, water outlet pipe. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0036] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] Please see Figure 1 , Figure 2 and Figure 4 , Figure 1 A schematic diagram of the structure of a vehicle motor oil cooling control system provided in an embodiment of the present application. The vehicle motor oil cooling control system includes: a control system, an oil tank 110, a cooling system, a motor, a heat exchanger 30 and an oil pump 20; the control system is connected to the oil tank 110, the cooling system, the motor and the oil pump 20, the cooling system is connected to the heat exchanger 30, the oil pump 20 and the heat exchanger 30 are both arranged on the oil tank 110, the motor is arranged directly above the oil tank 110, and the heat exchanger 30 is connected to the oil pump 20 and the motor.

[0038] Among them, the control system is used to issue control instructions to control the operation of the oil pump 20, so as to control the oil pump 20 to extract oil from the oil tank 110 and transmit it to the heat exchanger 30; the control system is also used to send heat exchange instructions to the cooling system to control the cooling system to adjust the heat exchange action of the heat exchanger 30, instructing the heat exchanger 30 to heat the oil and then transmit it to the motor; the motor returns oil to the oil tank 110 and feeds back the temperature and flow information of the oil to the control system in real time through the motor MCU.

[0039] As described above, the embodiment of the present application controls the oil pump 20 of the oil tank 110 by setting a control system, and controls the heat exchanger 30 by setting a cooling system, and the oil of the oil pump 20 is transported to the motor after heat exchange through the heat exchanger 30, and the motor feeds back the flow rate and temperature information of the oil to the control system in real time to realize closed-loop control, so that the control system can control the flow rate and temperature of the oil of the motor, improve the control accuracy, save oil loss, and reduce the difficulty of communication operation.

[0040] It can be understood that the oil tank 110 is placed directly at the lower end of the motor, and can be placed through a connecting structure such as a connecting frame; the oil that falls by gravity in the oil circuit of the motor goes directly into the oil tank 110, saving oil pipes and the amount of oil in the oil tank 110. It can be understood that the amount of oil in the oil tank 110 is sufficient to meet the cooling and oil extraction limit of the oil pump 20.

[0041] In some embodiments, a bus box is also included, and the control system is connected to the oil pump 20, the cooling system and the motor MCU through the bus box; the oil pump 20 is provided with a low-voltage wiring harness interface 10 connected to the bus box; the oil tank 110 is also provided with a low-voltage power supply 50, and the low-voltage power supply 50 is provided with a low-voltage power supply 50 interface 40, and the low-voltage power supply 50 interface 40 is connected to the oil pump 20; wherein the control system and the oil pump 20, the cooling system and the motor MCU all perform synchronous bus information transmission to achieve the effect of closed-loop control.

[0042] Optionally, the bus box may use a CAN box to implement a common communication protocol between the oil pump 20 and the motor MCU.

[0043] In some embodiments, please refer to Figure 4 The heat exchanger 30 is provided with an oil pump pipe 120 for connecting the oil pump 20, a motor oil pipe 130 for connecting the motor, a water inlet pipe 140 for connecting the cooling system, and a water outlet pipe 150 for connecting the cooling system; wherein, the oil of the oil pump 20 enters the heat exchanger 30 from the oil pump pipe 120, flows out from the motor oil pipe 130 and enters the motor power supply machine for operation, and at the same time, the heat exchanger 30 is connected to the cooling system through the water inlet pipe 140 and the water outlet pipe 150 to realize temperature alternation, and perform heat exchange treatment on the oil flowing into the motor.

[0044] In some embodiments, please refer to Figure 2 The oil in the oil tank 110 enters the oil pump 20 through the oil pump inlet filter 100; the oil pump inlet filter 100 plays a role in filtering impurities in the oil.

[0045] Specifically, the control system sends a control instruction to the CAN box, and the CAN box transmits the speed information to the oil pump 20 through the low-voltage wiring harness interface 10. The speed of the oil pump 20 changes, and the oil pumping action is performed. The oil pump 20 draws the oil through the oil pump inlet filter 100 and flows through the heat exchanger 30, and flows to the motor oil pipe 130 through the oil pump oil pipe 120. The heat exchanger 30 is affected by the temperature exchange of the cooling system to realize the change of the motor temperature instruction. The test control system controls the temperature change of the cooling system through the CAN network to meet the heat exchange requirements of the heat exchanger 30; at the same time, the control system receives the temperature flow information fed back by the motor MCU to form a control closed loop.

[0046] In some embodiments, please refer to Figure 1 and Figure 3 The oil tank 110 is provided with a motor oil return inlet 70, the motor is connected to the motor oil return inlet 70, and a filter screen 80 is provided inside the motor oil return inlet 70; wherein, the oil flows out from the bottom of the motor through the motor, and after filtering impurities through the filter screen 80, flows into the interior of the oil tank 110 through the motor oil return inlet 70, completing an oil circulation, ensuring the recycling of the oil, and saving oil loss.

[0047] Specifically, by using the oil pump 20 of the vehicle electric drive system, a closed-loop communication is achieved between the oil pump 20 and the motor MCU and the test control system, and the heat exchanger 30 is used to change the oil temperature, saving the use space of the oil tank 110. The oil tank 110 is placed directly below the test motor, and the oil is returned by gravity through the oil outlet at the bottom of the motor, thereby reducing the amount of oil used and saving oil pipelines. The motor MCU feedback temperature information collected by the control system is used to control the flow and temperature of the oil pump 20 and the cooling system, thereby achieving the purpose of accurately controlling the temperature and flow changes of the oil-cooled motor.

[0048] In some embodiments, the fuel tank 110 is also provided with a refueling port, a fuel tank 110 cover 60 and a liquid level display 90, and the fuel tank 110 cover 60 is mounted on the refueling port; wherein the liquid level display 90 can observe the amount of oil in the fuel tank 110, and the fuel tank 110 is filled with oil through the refueling port, and the oil cap is used to protect the oil in the fuel tank 110 from environmental pollution.

[0049] Exemplarily, the embodiment of the present application uses an integral small oil tank 110 as a carrier, and the electric drive assembly oil pump 20 is installed at the bottom of the oil tank 110. When the oil pump 20 is working, it draws lubricating oil from the oil tank 110 and enters the heat exchanger 30. The heat exchanger 30 is also installed at the bottom of the oil tank 110. The heat exchanger 30 undergoes temperature change through the cooling system of the test room. The lubricating oil after heat exchange enters the motor through one port of the heat exchanger 30 to achieve a temperature change of the motor. The lubricating oil flowing through the motor returns to the oil tank 110 from the oil outlet at the bottom of the motor by gravity, completing an oil circuit cycle. The whole vehicle electric drive oil pump 20 and the motor MCU have a common protocol, and the control system can directly read and control the speed signal of the oil pump 20, thereby achieving a change in flow rate. At the same time, the motor MCU feedback controls the temperature of the motor of the system, and the test control system can adjust the temperature of the cooling system according to the feedback temperature of the motor to achieve a temperature change of the motor, which not only reduces redundant oil pipelines and oil storage, but also improves the test efficiency of the oil-cooled motor and the accuracy of the test data of the oil-cooled motor.

[0050] Furthermore, the low-voltage power supply 50 provides signal power to the oil pump 20 through the two positive and negative poles of the low-voltage power supply 50 interface 40. The oil pump 20 realizes CAN communication with the motor MCU and the control system through the low-voltage wiring harness interface 10, and adopts the same DBC protocol as the motor MCU. The oil pump 20 draws cooling oil in the oil tank 110 through the oil pump oil inlet filter 100, and supplies the cooling oil pump 20 to the port of the oil pump oil pipe 120 of the heat exchanger 30, and flows from the port of the motor oil pipe 130 of the heat exchanger 30 to the oil inlet of the motor. The oil flows out from the bottom of the motor through the motor, and flows into the interior of the oil tank 110 through the motor return oil inlet 70 through the filter 80, completing an oil circulation. The speed signal of the oil pump 20 is fed back to the control system through CAN. The change of the speed of the oil pump 20 will affect the temperature and flow of the motor body, and cooperate with the cooling system to adjust the oil temperature. The heat exchanger 30 is connected to the cooling system through the port of the water inlet pipe 140 and the port of the water outlet pipe 150 to achieve temperature alternation for the oil flowing into the motor for heat exchange treatment. It should be noted that the control system and the oil pump 20, the cooling system, and the motor MCU all perform synchronous CAN information transmission to achieve the effect of closed-loop control. The refueling port is used for oil filling, and the liquid level display 90 can observe the amount of oil in the oil tank 110.

[0051] In the second aspect, based on the above embodiment, FIG. 5 is a flow chart of a control method of a vehicle motor oil cooling control system provided by an embodiment of the present application. Figure 5 The vehicle motor oil cooling control system control method provided in this embodiment specifically includes:

[0052] 100. The control system sends a control instruction to control the oil pump to operate, so as to control the oil pump to extract oil from the oil tank and transfer it to the heat exchanger.

[0053] Optionally, the control system not only issues control instructions based on preset parameters (such as temperature, pressure, flow, etc.), but also performs intelligent scheduling based on real-time data (such as the temperature difference between the inlet and outlet of the heat exchanger, system load changes, etc.) to control the operation of the oil pump and optimize the operating frequency and duration of the oil pump to achieve energy saving and efficiency improvement.

[0054] Optionally, the control system supports remote access and control. Operation and maintenance personnel can remotely monitor the system status, adjust control parameters, and even perform remote fault diagnosis and repair via the Internet to improve maintenance efficiency and response speed. At the same time, the status of oil pumps, oil tanks, heat exchangers and pipelines are monitored in real time. Once an abnormality is found (such as oil leakage, oil pump overheating, heat exchanger blockage, etc.), an early warning signal is immediately issued, and the operating mode may be automatically adjusted or switched to the backup system to ensure stable system operation.

[0055] 200. The control system sends a heat exchange instruction to the cooling system to control the cooling system to adjust the heat exchange action of the heat exchanger, and instruct the heat exchanger to transfer the oil to the motor after exchanging heat.

[0056] Optionally, the control system calculates and sends the optimal heat exchange instructions through an intelligent algorithm based on real-time data (such as oil temperature, motor operating temperature, ambient temperature, etc.) and preset parameters, ensuring that the heat exchange action can meet the motor cooling needs and avoid energy waste.

[0057] Specifically, the control system can dynamically adjust the heat exchange instructions according to changes in the motor's operating state (such as load increase, speed change), keep the motor operating within the optimal temperature range, and extend the motor's service life.

[0058] Among them, the cooling system directly affects the heat exchange efficiency of the heat exchanger by adjusting the flow of the cooling medium (such as water, coolant, etc.). The control system accurately controls the flow of the cooling medium according to the heat exchange instruction to ensure the efficient heat exchange process. In addition, the cooling system supports multiple operating modes (such as energy-saving mode, fast cooling mode, etc.). The control system selects the appropriate operating mode according to actual needs to achieve the best heat exchange effect.

[0059] 300. The motor returns oil to the oil tank and feeds back the temperature and flow information of the oil to the control system in real time through the motor MCU.

[0060] Specifically, the oil circulates inside the motor, not only for cooling, but also for lubricating and cleaning the internal parts of the motor. The oil return mechanism ensures the continuous circulation of the oil and maintains the normal operation of the motor.

[0061] Among them, the motor MCU integrates high-precision temperature sensors and flow sensors, which can monitor the temperature and flow information of the oil in real time and accurately. Specifically, the motor MCU performs preliminary processing on the data collected by the sensor, including filtering, calibration and formatting, to ensure the accuracy and reliability of the data. The processed data is sent to the control system in real time through the communication interface (such as CAN bus, SPI, etc.). It can be understood that in order to ensure accurate transmission and analysis of data, a unified communication protocol must be followed between the motor MCU and the control system, and the protocol should clearly define key parameters such as data format, transmission frequency, and verification method.

[0062] On the basis of the above implementation, the vehicle motor oil cooling control system control method of the embodiment of the present application can also be embodied as follows:

[0063] 400. The control system issues a control instruction to control the rotation speed of the oil pump according to the flow information fed back by the motor MCU, so as to control the flow rate of the oil pumped by the oil pump.

[0064] Specifically, the control system adopts a closed-loop control strategy. By continuously comparing the actual flow information fed back by the motor MCU with the preset flow target value, it calculates the deviation and adjusts the speed of the oil pump accordingly, ensuring that the oil flow drawn by the oil pump always remains within the set range.

[0065] Optionally, in order to more accurately control the oil pump speed, the control system can use a PID (proportional-integral-differential) control algorithm. The PID control algorithm can comprehensively calculate the optimal speed adjustment amount based on the size of the flow deviation, the speed of change, and the cumulative error, and achieve fast and stable flow control.

[0066] It is understandable that when the flow information fed back by the motor MCU indicates that the oil pump may be in an overload state (such as excessive flow, excessive pressure, etc.), the control system will immediately take measures to reduce the oil pump speed or shut down to prevent damage to the oil pump or cause a safety accident.

[0067] 500. The control system issues a control instruction to control the heat exchange temperature of the cooling system according to the temperature information fed back by the motor MCU, so as to perform temperature control on the heat exchanger and the motor.

[0068] Specifically, the control system adopts a closed-loop control strategy, compares the actual temperature fed back by the motor MCU with the preset temperature target value, and controls the temperature of the motor and heat exchanger by adjusting the heat exchange temperature of the cooling system.

[0069] Optionally, in order to control the temperature more accurately, the control system may use intelligent algorithms, such as fuzzy control, neural network control, etc. These algorithms can comprehensively consider multiple factors (such as ambient temperature, motor load, oil flow, etc.), dynamically adjust control parameters, and achieve a more optimized temperature control effect.

[0070] In some embodiments, by combining historical data and real-time information, the control system can also perform predictive control and adjust the heat exchange temperature of the cooling system in advance to cope with upcoming temperature changes and improve the response speed and stability of the system.

[0071] It is understandable that when the motor temperature exceeds the preset safety threshold, the control system will immediately activate the overheat protection mechanism, such as increasing the flow of the cooling medium, reducing the load of the motor or shutting down, to prevent the motor from being damaged or causing a safety accident. In addition to real-time control, the control system will also monitor and analyze the temperature data of the motor for a long time. Once potential fault signs are found (such as abnormal temperature fluctuations, continuous increases, etc.), an early warning signal will be issued in advance to remind maintenance personnel to conduct inspections and repairs.

[0072] As described above, the embodiment of the present application controls the oil pump of the oil tank by setting a control system, and controls the heat exchanger by setting a cooling system. The oil of the oil pump is transported to the motor after heat exchange through the heat exchanger. The motor feeds back the flow rate and temperature information of the oil to the control system in real time to realize closed-loop control, so that the control system can control the flow rate and temperature of the oil of the motor, improve the control accuracy, save oil loss, and reduce the difficulty of communication operation.

[0073] Illustratively, the embodiment of the present application utilizes the oil pump of the vehicle electric drive system to achieve a closed-loop communication between the oil pump and the motor MCU and the test control system, and utilizes a heat exchanger to change the oil temperature, thereby saving space for the oil tank. The oil tank is placed directly below the test motor, and the oil is returned by gravity through the oil outlet at the bottom of the motor, thereby reducing oil usage and saving oil pipelines. The control system collects temperature information fed back by the motor MCU to control the flow and temperature of the oil pump and cooling system, thereby achieving the purpose of accurately controlling the temperature and flow changes of the oil-cooled motor.

[0074] Specifically, the control system sends a control command to the CAN box, and the CAN box transmits the speed information to the oil pump through the low-voltage wiring harness interface. The speed of the oil pump changes, and the oil pumping action is performed. The oil pump draws the oil through the oil pump inlet filter and flows through the heat exchanger, and then flows to the motor oil pipe through the oil pump oil pipe. The heat exchanger is affected by the temperature exchange of the cooling system to realize the change of the motor temperature command. The test control system controls the temperature change of the cooling system through the CAN network to meet the heat exchange requirements of the heat exchanger; at the same time, the control system receives temperature and flow information feedback from the motor MCU to form a control closed loop.

[0075] The above steps are not to be performed in a strict order as described in the numbers, but should be understood as an overall solution.

[0076] The vehicle motor oil cooling control system provided in the embodiment of the present application can be used to execute the vehicle motor oil cooling control system control method provided in the above embodiment, and has corresponding functions and beneficial effects.

[0077] In a third aspect, an embodiment of the present application further provides an electronic device that can integrate the vehicle motor oil cooling control system provided in an embodiment of the present application. Figure 6 Schematic diagram of the structure of an electronic device provided by an embodiment of the present application. Figure 6 The electronic device includes: an input device 73, an output device 74, a memory 72 and one or more processors 71; the memory 72 is used to store one or more programs; when the one or more programs are executed by the one or more processors 41, the one or more processors 71 implement the vehicle motor oil cooling control system control method provided in the above embodiment. The input device 73, the output device 74, the memory 72 and the processor 71 can be connected by a bus or other means. Figure 6 The example of connecting through bus is taken in the following.

[0078] The processor 71 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory 72, that is, realizes the above-mentioned vehicle motor oil cooling control system control method.

[0079] The electronic device provided above can be used to execute the vehicle motor oil cooling control system control method provided in the above embodiment, and has corresponding functions and beneficial effects.

[0080] In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium, which includes a stored computer program; wherein, when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute the vehicle motor oil cooling control system control method as described above, and can achieve the same beneficial effects.

[0081] Of course, the storage medium containing computer executable instructions provided in the embodiment of the present application is not limited to the control method of the vehicle motor oil cooling control system as described above, and can also execute related operations in the control method of the vehicle motor oil cooling control system provided in any embodiment of the present application.

[0082] In a fifth aspect, the embodiments of the present application also provide a computer program product, and the methods described in the various embodiments of the present application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the various embodiments of the present application is executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, a core network device, an OAM (Open Application Model) or other programmable device.

[0083] The computer program or instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instructions may be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disk; it may also be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both volatile and non-volatile types of storage media.

[0084] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and the module, a program segment or a part of a code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0085] In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0086] If the function is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for an electronic device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: 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.

[0087] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0088] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0089] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A vehicle motor oil cooling control system, characterized in that: include: A control system, an oil tank, a cooling system, a motor, a heat exchanger and an oil pump; the control system is connected to the oil tank, the cooling system, the motor and the oil pump, the cooling system is connected to the heat exchanger, the oil pump and the heat exchanger are both arranged on the oil tank, the motor is arranged directly above the oil tank, and the heat exchanger is connected to the oil pump and the motor; The control system is used to issue control instructions to control the operation of the oil pump, so as to control the oil pump to extract oil from the oil tank and transmit it to the heat exchanger; the control system is also used to send heat exchange instructions to the cooling system to control the cooling system to adjust the heat exchange action of the heat exchanger, instructing the heat exchanger to transfer the oil to the motor after heat exchange; the motor returns oil to the oil tank and feeds back the temperature and flow information of the oil to the control system in real time through the motor MCU.

2. The vehicle motor oil cooling control system according to claim 1 is characterized in that: It also includes a bus box, and the control system is connected to the oil pump, the cooling system and the motor MCU through the bus box; the oil pump is provided with a low-voltage wiring harness interface connected to the bus box; the oil tank is also provided with a low-voltage power supply, and the low-voltage power supply is provided with a low-voltage power supply interface, and the low-voltage power supply interface is connected to the oil pump.

3. The vehicle motor oil cooling control system according to claim 1 is characterized in that: The heat exchanger is provided with an oil pump oil pipe for connecting to the oil pump, a motor oil pipe for connecting to the motor, a water inlet pipe for connecting to the cooling system, and a water outlet pipe for connecting to the cooling system.

4. The vehicle motor oil cooling control system according to claim 1, characterized in that: The oil in the oil tank enters the oil pump through the oil pump oil inlet filter.

5. The vehicle motor oil cooling control system according to claim 1, characterized in that: The oil tank is provided with a motor oil return inlet, the motor is connected to the motor oil return inlet, and a filter is provided in the motor oil return inlet.

6. The vehicle motor oil cooling control system according to claim 1, characterized in that: The fuel tank is also provided with a fuel filling port, a fuel tank cap and a liquid level display, and the fuel tank cap is sleeved on the fuel filling port.

7. A vehicle motor oil cooling control system control method, applied to the vehicle motor oil cooling control system control system as claimed in any one of claims 1 to 6, characterized in that: include: The control system issues a control instruction to control the oil pump to operate, so as to control the oil pump to extract oil from the oil tank and transmit it to the heat exchanger; The control system sends a heat exchange instruction to the cooling system to control the cooling system to adjust the heat exchange action of the heat exchanger, and instructs the heat exchanger to transfer the oil to the motor after exchanging heat; The motor returns oil to the oil tank and feeds back oil temperature and flow information to the control system in real time through the motor MCU.

8. The vehicle motor oil cooling control system control method according to claim 7, characterized in that: Also includes: The control system issues a control instruction to control the speed of the oil pump according to the flow information fed back by the motor MCU, so as to control the flow rate of the oil pumped by the oil pump; The control system issues a control instruction to control the heat exchange temperature of the cooling system according to the temperature information fed back by the motor MCU, so as to perform temperature control on the heat exchanger and the motor.

9. An electronic device, characterized in that: include: A processor, a memory and a bus, wherein the processor is connected to the memory via the bus, and the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, they are used to implement the vehicle motor oil cooling control system control method as described in any one of claims 7-8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which, when executed by a server, implements the vehicle motor oil cooling control system control method as described in any one of claims 7-8.

Citation Information

Patent Citations

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