Hybrid engine lubrication control system and method and vehicle
By connecting the mechanical oil pump and the motor oil pump in a hybrid engine, combined with oil temperature and exhaust temperature detection, the problem of insufficient lubrication is solved at frequent start and stop, and the engine is efficient lubrication and power output is achieved, and the service life is extended.
Patent Information
- Application Number
- CN202510818387.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-18
- Publication Date
- 2025-08-15
AI Technical Summary
The hybrid engine is not lubricated sufficiently during frequent start and stopping, resulting in abnormal wear of the body, reducing the engine service life and affecting the power output response.
The parallel mechanical oil pump and motor oil pump system are adopted, combined with oil temperature and exhaust temperature detection, and the control module outputs different mode signals during engine shutdown and operation states, controlling the working state of the motor oil pump to ensure lubrication before starting and when the engine is stopped.
Prelubrication before and at the start of the engine is achieved, reducing wear, extending service life, and improving the speed and responsiveness of power output.
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Figure CN120487316A_ABST
Abstract
Description
Technical Field
[0001] Embodiments of the present invention relate to the technical field of hybrid vehicles, and more particularly to a hybrid engine lubrication control system, method, and vehicle. Background Art
[0002] With the rapid development of new energy, hybrid engines are driven by both the engine and the electric motor. Since the engine will start and stop frequently in this driving mode, insufficient lubrication will cause abnormal wear on the engine body and reduce the service life of the engine. It is also particularly critical for the engine to start and stop at high speed to participate in power output.
[0003] A common engine lubrication system consists of a cylinder block, main oil gallery, mechanical oil pump and oil pan. When the engine is running normally, it can fully lubricate the internal components. When the engine is started and stopped frequently, there is not enough oil to lubricate the surface of the internal components. Insufficient lubrication will cause abnormal wear. In this case, pre-lubrication of the engine before starting and stopping is particularly important. It can reduce wear, extend service life, and achieve high-speed start-stop conditions for the engine. The engine starts and outputs power more quickly and has better power responsiveness. Summary of the Invention
[0004] The present invention provides a hybrid engine lubrication control system, method and vehicle, so as to enable an electric motor oil pump to operate before the engine is started and just when the engine is stopped, thereby maintaining lubrication between engine components.
[0005] To achieve the above objectives, in a first aspect, an embodiment of the present invention provides a hybrid engine lubrication control system, the hybrid engine lubrication control system comprising:
[0006] Oil pan and main oil gallery;
[0007] A first oil passage and a second oil passage are connected between the oil pan and the main oil passage respectively, and the first oil passage and the second oil passage are arranged in parallel;
[0008] a mechanical oil pump, disposed on the first oil passage and configured to start working when the engine is running;
[0009] an electric motor oil pump, disposed on the second oil passage;
[0010] An oil temperature detection module is provided on the main oil channel and is used to monitor the oil temperature information in real time;
[0011] Exhaust temperature detection module, used to detect engine exhaust temperature information in real time;
[0012] The control module is used to determine whether the engine is in a stopped state when the vehicle is in motion; when the engine is in the stopped state, output different first mode signals to the electric motor oil pump according to the engine pre-start instruction and oil temperature information; when the engine is in the running state, output different second mode signals to the electric motor oil pump according to the engine stop signal and exhaust temperature information.
[0013] Optionally, the control module is further configured to output an engine pre-start instruction when the vehicle speed information is greater than a preset vehicle speed information and the throttle opening information is greater than a preset opening information.
[0014] Optionally, the control module is further configured to output an engine shutdown hold instruction when the vehicle speed information is less than the preset vehicle speed information and the throttle opening information is less than the preset opening information;
[0015] It is also used to output a third mode signal to the electric motor oil pump according to the engine shutdown hold instruction and the engine shutdown duration when it is determined that the engine is in a shutdown state.
[0016] Optionally, outputting a third mode signal to the electric motor oil pump according to the engine shutdown hold instruction and the engine shutdown duration includes:
[0017] When the engine shutdown time is longer than the preset shutdown time, the electric motor oil pump is controlled to operate for the preset time according to the engine shutdown holding instruction.
[0018] Optionally, when it is determined that the engine is in a stopped state, outputting a different first mode signal to the electric motor oil pump according to the engine pre-start instruction and the oil temperature information includes:
[0019] When the oil temperature information exceeds the preset oil temperature range information, controlling the electric motor oil pump to operate at maximum power according to the engine pre-start instruction;
[0020] When the oil temperature information is within the preset oil temperature range information, the electric motor oil pump is controlled to operate at different output powers according to different vehicle speeds according to the engine pre-start instruction.
[0021] Optionally, when it is determined that the engine is in a running state, outputting a different second mode signal to the electric oil pump according to the engine shutdown signal and the exhaust temperature information includes:
[0022] When the exhaust temperature information is greater than the preset exhaust temperature information, controlling the electric motor oil pump to operate at a preset power according to the engine shutdown signal;
[0023] When the exhaust temperature information is lower than the preset exhaust temperature information, the electric motor oil pump is controlled to stop working according to an engine shutdown signal.
[0024] Optionally, the preset power is determined according to energy consumption information and a pre-wear coefficient.
[0025] Optionally, it is also used to output a fourth mode signal according to the engine operation maintenance signal when the engine is in the running state.
[0026] In a second aspect, an embodiment of the present invention further provides a hybrid engine lubrication control method, which is applied to the hybrid engine lubrication control system described in the first aspect. The hybrid engine lubrication control method includes:
[0027] When the vehicle is in driving state, determining whether the engine is in a stopped state;
[0028] When it is determined that the engine is in a stopped state, outputting different first mode signals to the electric motor oil pump according to the engine pre-start instruction and the oil temperature information;
[0029] When it is determined that the engine is in the running state, different second mode signals are output to the electric oil pump according to the engine shutdown signal and the exhaust temperature information.
[0030] In a third aspect, an embodiment of the present invention further provides a vehicle, which includes the hybrid engine lubrication control system described in the first aspect.
[0031] In an embodiment of the present invention, when the vehicle is in motion, the control module determines whether the engine is in a stopped state; when the engine is in a stopped state, different first mode signals are output to the electric motor oil pump according to the engine pre-start instruction and the oil temperature information; in this way, the electric motor oil pump operates before the engine is started, and pre-lubrication between the engine components is maintained before the engine is started, thereby achieving faster engine start-up power output and better power responsiveness; and when the engine is in a running state, different second mode signals are output to the electric motor oil pump according to the engine stop signal and the exhaust temperature information, so that the electric motor oil pump operates when the engine is stopped, thereby maintaining lubrication between the engine components when the engine is stopped, avoiding abnormal wear caused by insufficient lubrication, and extending the service life.
[0032] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0034] Figure 1 1 is a schematic structural diagram of a hybrid engine lubrication control system provided by an embodiment of the present invention;
[0035] Figure 2 1 is a flow chart of a hybrid engine lubrication control method provided by an embodiment of the present invention;
[0036] Figure 3 is a flow chart of another hybrid engine lubrication control method provided by an embodiment of the present invention;
[0037] Figure 4 It is a flow chart of another hybrid engine lubrication control method provided by an embodiment of the present invention. DETAILED DESCRIPTION
[0038] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of the present invention.
[0039] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0040] Figure 1 Schematic diagram of a hybrid engine lubrication control system provided by an embodiment of the present invention. Figure 1As shown, the hybrid engine lubrication control system includes: an oil pan 10 and a main oil gallery 20; a first oil gallery 30 and a second oil gallery 40, which are connected between the oil pan 10 and the main oil gallery 20, respectively, and the first oil gallery 30 and the second oil gallery 40 are arranged in parallel; a mechanical oil pump 50, which is arranged on the first oil gallery 30 and is configured to start working when the engine is running; an electric oil pump 60, which is arranged on the second oil gallery 40; an oil temperature detection module 70, which is arranged on the main oil gallery 20 and is used to monitor oil temperature information in real time; an exhaust temperature detection module 80, which is used to detect engine exhaust temperature information in real time;
[0041] The control module 90 is used to determine whether the engine is in a stopped state when the vehicle is in motion; when the engine is in a stopped state, different first mode signals are output to the electric oil pump 60 according to the engine pre-start instruction and oil temperature information; when the engine is in a running state, different second mode signals are output to the electric oil pump 60 according to the engine stop signal and exhaust temperature information.
[0042] The mechanical oil pump 50 is an oil pump driven by a mechanical transmission (such as an engine crankshaft, gears, or belts) and can deliver the oil in the oil pan 10 to the main oil gallery 20 through the first oil gallery 30, thereby lubricating the engine. That is, the mechanical oil pump 50 must be activated when the engine is running; it cannot be activated when the engine is not running.
[0043] The electric oil pump 60 is an oil pump device driven by an independent electric motor, which can deliver the oil in the oil pan 10 to the main oil gallery 20 through the second oil passage 40, thereby lubricating the engine. The electric oil pump 60 can be a gear-type electric oil pump, a vane-type electric oil pump, or a plunger-type electric oil pump, which is not specifically limited in this embodiment. In this embodiment, the electric oil pump 60 can be started when the engine is not running.
[0044] The oil temperature detection module 70 can be an oil temperature sensor, which can monitor the oil temperature information in the main oil channel 20 in real time. Generally, when the oil temperature information is high after shutdown, the viscosity of the lubricating oil in the main oil channel 20 decreases, affecting the formation and stability of the oil film, and failing to play an effective lubricating role, and unable to avoid component wear.
[0045] The exhaust temperature detection module 80 can be an exhaust temperature detection sensor that can detect the engine exhaust temperature information in real time. Generally, the exhaust temperature information reflects the thermal state inside the engine to a certain extent. When the engine is stopped, if the exhaust temperature is high, if the engine oil no longer flows at this time, the exhaust heat cannot be carried away by the engine oil in time, which may cause the engine oil to crack, deteriorate, and coke, thereby exacerbating component wear.
[0046] The engine pre-start instruction is an instruction output based on a sensor signal after the engine is in a stopped state, indicating that the engine is about to start working; or a pre-start instruction sent via a key remote control or a mobile phone APP, which is not specifically limited in this embodiment;
[0047] The engine shutdown signal is a shutdown command received while the engine is in operation. The engine shutdown signal can be directly obtained by the ECU or determined based on sensor signals, which is not specifically limited in this embodiment.
[0048] Specifically, in this embodiment, the control module 90 determines whether the engine is in a stopped state when the vehicle is in motion. When the engine is in the stopped state, different first mode signals are output to the electric oil pump based on the engine pre-start command and oil temperature information. Thus, before the engine is started, the electric oil pump is controlled to operate under different first mode signals, so that the oil in the oil pan 10 can be transported to the main oil gallery 20 through the first oil passage 30, thereby lubricating the engine and maintaining pre-lubrication between engine components, thereby achieving faster engine start-up power output and better power responsiveness. The control module 90 also outputs different second mode signals to the electric oil pump based on the engine stop signal and exhaust temperature information when the engine is running. Thus, when the engine is stopped, the electric oil pump operates under different second mode signals, thereby maintaining lubrication between engine components when the engine is stopped, avoiding abnormal wear caused by insufficient lubrication, and extending the service life. Thus, this embodiment solves the abnormal engine wear caused before and immediately after the engine is started, and can ensure high-speed engine start-stop conditions.
[0049] Optionally, based on the above embodiment, the output engine pre-start instruction is further refined, referring to Figure 1 The control module 90 is further configured to output an engine pre-start instruction when the vehicle speed information is greater than the preset vehicle speed information and the throttle opening information is greater than the preset opening information.
[0050] Specifically, when the engine is stopped, the hybrid vehicle's power battery is in operation, and the hybrid vehicle maintains a certain speed. When the vehicle speed exceeds a preset speed and the throttle opening exceeds a preset opening, the system pre-determines that the engine needs to be activated and engaged in the power output assembly, issuing an engine pre-start command. The preset speed and opening information can be calibrated for different hybrid vehicle models.
[0051] Optionally, based on the above embodiment, the working mode of the control module 90 in the hybrid engine lubrication control system is further optimized, referring to Figure 1The control module 90 is also used to output an engine shutdown hold instruction when the vehicle speed information is less than the preset vehicle speed information and the throttle opening information is less than the preset opening information; it is also used to output a third mode signal to the electric motor oil pump according to the engine shutdown hold instruction and the engine shutdown duration when it is determined that the engine is in a shutdown state.
[0052] Specifically, when the engine is in a stopped state, when the vehicle speed information is less than the preset vehicle speed information, and the throttle opening information is less than the preset opening information, it is determined in advance that the engine does not need to participate in the operation and does not participate in the power output assembly. At this time, an engine stop hold command is output;
[0053] Furthermore, the control module 90 is further configured to output a third mode signal to the electric motor oil pump according to the engine shutdown hold instruction and the engine shutdown duration when it is determined that the engine is in a shutdown state.
[0054] Specifically, when the engine shutdown time exceeds a first preset time, the engine has not been started for a long time; during the long period of time when the engine has not been started, the vibration during the vehicle's driving will cause wear of the engine's internal components; in this embodiment, when it is determined that the engine is in a shutdown state, based on the engine shutdown hold instruction, a third mode signal is output to the electric motor oil pump according to the engine shutdown time. The electric motor oil pump operates in the third mode signal, which can avoid the long period of time when the engine has not been started, and the vibration during the vehicle's driving will cause wear of the engine's internal components.
[0055] Optional, continue to refer to Figure 1 , outputting a third mode signal to the electric motor oil pump according to the engine shutdown hold instruction and the engine shutdown duration, including: when the engine shutdown duration is greater than the preset shutdown duration, controlling the electric motor oil pump to work for the preset duration according to the engine shutdown hold instruction.
[0056] Among them, the preset shutdown time can be calibrated according to different hybrid vehicles; when the engine shutdown time is greater than the preset shutdown time, the electric motor oil pump is controlled to work for the preset time according to the engine shutdown holding instruction, that is, the electric motor oil pump is controlled to start regularly with the preset time as the interval length according to the engine shutdown holding instruction, so as to avoid the vibration during the vehicle driving when the engine is not started for a long time, which may cause wear of the internal components of the engine.
[0057] Optional, continue to refer to Figure 1When it is determined that the engine is in a stopped state, different first mode signals are output to the electric motor oil pump according to the engine pre-start instruction and the oil temperature information, including: when the oil temperature information exceeds the preset oil temperature range information, the electric motor oil pump is controlled to operate at maximum power according to the engine pre-start instruction; when the oil temperature information is within the preset oil temperature range information, the electric motor oil pump is controlled to operate at different output powers according to different vehicle speeds according to the engine pre-start instruction.
[0058] Among them, the preset oil temperature information is the critical oil temperature information that causes the viscosity of the engine oil in the main oil channel 20 to decrease, affecting the formation and stability of the oil film; when the oil temperature information exceeds the preset oil temperature range information, the electric motor oil pump is controlled to operate at maximum power according to the engine pre-start instruction, so that the engine oil in the oil pan 10 can be transported to the main oil channel 20 through the first oil channel 30 to the maximum extent, thereby lubricating the engine to the maximum extent and maintaining pre-lubrication between engine components, so as to maximize the engine starting and output power faster; when the oil temperature information is within the preset oil temperature range information, the electric motor oil pump is controlled to operate at different output powers according to different vehicle speeds according to the engine pre-start instruction, so that the engine oil in the oil pan 10 can be transported to the main oil channel 20 through the first oil channel 30 at different output powers according to different operating dynamic requirements, thereby realizing pre-lubrication of the engine and achieving different engine starting output power and different power responsiveness at different vehicle speeds.
[0059] Optional, continue to refer to Figure 1 When it is determined that the engine is in a running state, different second mode signals are output to the electric oil pump according to the engine shutdown signal and the exhaust temperature information, including: when the exhaust temperature information is greater than the preset exhaust temperature information, the electric oil pump is controlled to operate at a preset power according to the engine shutdown signal; when the exhaust temperature information is less than the preset exhaust temperature information, the electric oil pump is controlled to stop working according to the engine shutdown signal.
[0060] The preset exhaust temperature information represents the critical exhaust temperature that causes oil decomposition and coking in the main oil gallery 20, thereby exacerbating component wear. When the exhaust temperature information exceeds the preset exhaust temperature information, the electric oil pump is controlled to operate at a preset power according to the engine shutdown signal. This prevents abnormal wear between engine components caused by insufficient lubrication when the engine is stopped, thereby extending the engine's service life. The preset power is determined based on energy consumption information and a pre-wear coefficient. When the exhaust temperature information is less than the preset exhaust temperature information, the exhaust temperature is relatively low, and thus has a lesser effect on oil lubrication. Upon receiving the engine shutdown signal, the electronic pre-pump is controlled to stop operating.
[0061] Optional, continue to refer to Figure 1The control module 90 is further configured to output a fourth mode signal based on the engine operation maintenance signal when the engine is in operation. The engine operation maintenance signal indicates that the engine has not received a shutdown signal after the engine is in operation. When the engine is in operation, the control module 90 outputs the fourth mode signal based on the engine operation maintenance signal. The fourth mode signal is a signal for stopping the electric oil pump and operating the mechanical oil pump. Specifically, the electric oil pump is stopped and the mechanical oil pump is operated, and the mechanical oil pump lubricates the engine.
[0062] Based on the same inventive concept, an embodiment of the present invention further provides a hybrid engine lubrication control method, which is applied to the hybrid engine lubrication control system described in the above embodiment. Figure 2 is a flow chart of a hybrid engine lubrication control method provided by an embodiment of the present invention; Figure 2 As shown, the hybrid engine lubrication control method includes:
[0063] S110: When the vehicle is in a driving state, determine whether the engine is in a stopped state.
[0064] S120: When it is determined that the engine is in a stopped state, output different first mode signals to the electric motor oil pump according to the engine pre-start instruction and the oil temperature information.
[0065] S130: When it is determined that the engine is in the running state, output a different second mode signal to the electric oil pump according to the engine shutdown signal and the exhaust temperature information.
[0066] In an embodiment of the present invention, the control module determines whether the engine is in a stopped state when the vehicle is in driving state; when the engine is in a stopped state, different first mode signals are output to the electric oil pump according to the engine pre-start instruction and oil temperature information; in this way, the electric oil pump is controlled to operate under different first mode signals before the engine is started, so that the oil in the oil pan can be transported to the main oil channel through the first oil channel, thereby lubricating the engine and maintaining pre-lubrication between engine components, so as to achieve faster engine start-up power output and better power responsiveness; the control module also outputs different second mode signals to the electric oil pump according to the engine stop signal and exhaust temperature information when the engine is in a running state, so that the electric oil pump operates under different second mode signals when the engine is stopped, thereby maintaining lubrication between engine components when the engine is stopped, avoiding abnormal wear caused by insufficient lubrication, and extending service life.
[0067] Optionally, based on the above embodiment, step S120 and step S130 are further refined. Figure 3 is a flow chart of another hybrid engine lubrication control method provided by an embodiment of the present invention; Figure 3As shown, the hybrid engine lubrication control method includes the following steps:
[0068] S210: When the vehicle is in a driving state, determine whether the engine is in a stopped state.
[0069] S220: When the engine is in a stopped state and the oil temperature information exceeds the preset oil temperature range information, the electric motor oil pump is controlled to operate at maximum power according to the engine pre-start instruction.
[0070] S221. When the engine is in a stopped state and the oil temperature information is within a preset oil temperature range, the electric motor oil pump is controlled to operate at different output powers according to different vehicle speeds according to an engine pre-start instruction.
[0071] S230: When the engine is in operation and the exhaust temperature information is greater than a preset exhaust temperature information, the electric motor oil pump is controlled to operate at a preset power according to an engine shutdown signal.
[0072] S231: When the engine is in operation and the exhaust temperature information is lower than the preset exhaust temperature information, the motor oil pump pre-pump is controlled to stop working according to the engine shutdown signal.
[0073] In the present embodiment, the first mode signal and the second mode signal are refined in the above embodiment, thereby solving the abnormal wear of the engine caused before the engine is started and just when it is stopped, and ensuring the high speed start-stop condition of the engine.
[0074] Optionally, based on the above embodiment, the hybrid engine lubrication control method is further optimized. Figure 4 is a flow chart of a hybrid engine lubrication control method provided by an embodiment of the present invention; Figure 4 As shown, the hybrid engine lubrication control method includes the following steps:
[0075] S310: When the vehicle is in motion, determine whether the engine is in a stopped state.
[0076] S320: When it is determined that the engine is in a stopped state, output different first mode signals to the electric motor oil pump according to the engine pre-start instruction and the oil temperature information.
[0077] S330: When it is determined that the engine is in a shutdown state, a third mode signal is output to the electric motor oil pump according to the engine shutdown hold instruction and the engine shutdown duration.
[0078] Specifically, when the engine shutdown time is longer than a preset shutdown time, the electric motor oil pump is controlled to operate for the preset time according to the engine shutdown holding instruction.
[0079] S340: When it is determined that the engine is in the running state, a different second mode signal is output to the electric oil pump according to the engine shutdown signal and the exhaust temperature information.
[0080] S350: When the engine is in operation, output a fourth mode signal according to the engine operation maintaining signal.
[0081] Specifically, when the engine is in operation, the fourth mode signal is output according to the engine operation maintenance signal. The fourth mode signal is a signal for controlling the electric oil pump to stop working and controlling the mechanical oil pump to work; that is, at this time, the electric oil pump is controlled to stop working and the mechanical oil pump is controlled to work, and the mechanical oil pump lubricates the engine.
[0082] In this embodiment, a third mode signal is added to solve the problem that vehicle vibration may cause wear of internal engine components when the vehicle is stopped for a long time; a fourth mode signal is added so that the mechanical oil pump can keep the engine lubricated during engine operation.
[0083] Based on the same inventive concept, an embodiment of the present invention further provides a vehicle including the hybrid engine lubrication control system described in the above embodiment. Since this embodiment includes the hybrid engine lubrication control system of the above embodiment, it also has the beneficial effects of the above embodiment and will not be further described here. The vehicle in this embodiment includes a hybrid vehicle; the hybrid vehicle may include a series hybrid vehicle or a parallel hybrid vehicle, without limitation.
[0084] Note that the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.
Claims
1. A hybrid engine lubrication control system, characterized in that: include: Oil pan and main oil gallery; A first oil passage and a second oil passage are connected between the oil pan and the main oil passage respectively, and the first oil passage and the second oil passage are arranged in parallel; a mechanical oil pump, disposed on the first oil passage and configured to start working when the engine is running; an electric motor oil pump, disposed on the second oil passage; An oil temperature detection module is provided in the main oil passage; Used to monitor oil temperature information in real time; Exhaust temperature detection module, used to detect engine exhaust temperature information in real time; A control module is used to determine whether the engine is in a stopped state when the vehicle is in a driving state; When the engine is in a stopped state, different first mode signals are output to the electric motor oil pump according to the engine pre-start instruction and oil temperature information; when the engine is in a running state, different second mode signals are output to the electric motor oil pump according to the engine stop signal and exhaust temperature information.
2. The hybrid engine lubrication control system according to claim 1, characterized in that: The control module is further configured to output an engine pre-start instruction when the vehicle speed information is greater than the preset vehicle speed information and the throttle opening information is greater than the preset opening information.
3. The hybrid engine lubrication control system according to claim 2, characterized in that: The control module is further configured to output an engine shutdown hold instruction when the vehicle speed information is less than the preset vehicle speed information and the throttle opening information is less than the preset opening information; It is also used to output a third mode signal to the electric motor oil pump according to the engine shutdown hold instruction and the engine shutdown duration when it is determined that the engine is in a shutdown state.
4. The hybrid engine lubrication control system according to claim 3, characterized in that: Outputting a third mode signal to the electric motor oil pump according to the engine shutdown hold instruction and the engine shutdown duration includes: When the engine shutdown time is longer than the preset shutdown time, the electric motor oil pump is controlled to operate for the preset time according to the engine shutdown holding instruction.
5. The hybrid engine lubrication control system according to claim 1, characterized in that: When it is determined that the engine is in a stopped state, a different first mode signal is output to the electric motor oil pump according to the engine pre-start instruction and the oil temperature information, including: When the oil temperature information exceeds the preset oil temperature range information, controlling the electric motor oil pump to operate at maximum power according to the engine pre-start instruction; When the oil temperature information is within the preset oil temperature range information, the electric motor oil pump is controlled to operate at different output powers according to different vehicle speeds according to the engine pre-start instruction.
6. The hybrid engine lubrication control system according to claim 1, characterized in that: When it is determined that the engine is in the running state, a different second mode signal is output to the electric oil pump according to the engine shutdown signal and the exhaust temperature information, including: When the exhaust temperature information is greater than the preset exhaust temperature information, controlling the electric motor oil pump to operate at a preset power according to the engine shutdown signal; When the exhaust temperature information is lower than the preset exhaust temperature information, the electric motor oil pump is controlled to stop working according to an engine shutdown signal.
7. The hybrid engine lubrication control system according to claim 6, characterized in that: The preset power is determined according to energy consumption information and a pre-wear coefficient.
8. The hybrid engine lubrication control system according to claim 1, characterized in that: It is also used to output a fourth mode signal according to the engine operation maintaining signal when the engine is in the running state.
9. A hybrid engine lubrication control method, characterized in that: Applied to the hybrid engine lubrication control system according to any one of claims 1 to 7 above, the hybrid engine lubrication control method comprises: When the vehicle is in driving state, determining whether the engine is in a stopped state; When it is determined that the engine is in a stopped state, outputting different first mode signals to the electric motor oil pump according to the engine pre-start instruction and the oil temperature information; When it is determined that the engine is in the running state, different second mode signals are output to the electric oil pump according to the engine shutdown signal and the exhaust temperature information.
10. A vehicle, characterized in that: The hybrid engine lubrication control system includes the hybrid engine lubrication control system according to any one of claims 1 to 8.
Citation Information
Cited By
Intelligent lubrication control system and vehicle
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