CN115434799A - Engine water temperature monitoring and early warning method, electronic equipment, storage medium and vehicle - Google Patents
Engine water temperature monitoring and early warning method, electronic equipment, storage medium and vehicle Download PDFInfo
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- CN115434799A CN115434799A CN202211126430.9A CN202211126430A CN115434799A CN 115434799 A CN115434799 A CN 115434799A CN 202211126430 A CN202211126430 A CN 202211126430A CN 115434799 A CN115434799 A CN 115434799A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 154
- 238000012544 monitoring process Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 60
- 230000004044 response Effects 0.000 claims description 20
- 238000004590 computer program Methods 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 description 25
- 238000004891 communication Methods 0.000 description 11
- 230000002528 anti-freeze Effects 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
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- 238000013021 overheating Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
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- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P11/16—Indicating devices; Other safety devices concerning coolant temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
- F02D2250/26—Control of the engine output torque by applying a torque limit
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Abstract
The application provides an engine water temperature monitoring and early warning method, electronic equipment, storage medium and vehicle, wherein the method comprises the following steps: acquiring the current speed and the engine state of the vehicle; and monitoring and early warning the water temperature of the engine according to the vehicle speed and/or the engine state and the water temperature of the engine acquired in real time. The method provided by the application carries out water temperature monitoring and early warning on the engine by combining the vehicle speed and/or the engine state and multiple angles of the water temperature of the engine, adopts different early warning strategies under different working conditions, solves the problem that unnecessary high-temperature alarms are sent under the condition that the engine has the capability of radiating heat, and avoids distracting drivers and causing unnecessary panic.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to an engine water temperature monitoring and early warning method, electronic equipment, a storage medium and a vehicle.
Background
The water temperature of the engine is the temperature of cooling water coated around the engine, and is an important parameter for representing whether the engine works normally, and if the water temperature of the engine exceeds the tolerance temperature of hardware of the engine, important parts such as a cylinder body, a piston, a cylinder cover or a cylinder gasket of the engine can be deformed and even scrapped.
In the related art, early warning is usually carried out according to the water temperature of an engine, so that personnel in a vehicle can know the condition that the water temperature of the engine is too high in time, and the engine can be overhauled in time. However, the early warning is only carried out according to the water temperature of the engine, so that under the condition that some engines have the capability of radiating heat, the alarm that the water temperature of the engine is too high is still sent to people in the automobile, the attention of drivers is dispersed, and unnecessary panic is caused.
Disclosure of Invention
In view of the above, an object of the present application is to provide an engine water temperature monitoring and early warning method, an electronic device, a storage medium, and a vehicle.
Based on the above purpose, the application provides an engine water temperature monitoring and early warning method, which comprises the following steps: acquiring the current speed and the engine state of the vehicle; and monitoring and early warning the water temperature of the engine according to the vehicle speed and/or the engine state and the water temperature of the engine acquired in real time.
Optionally, the monitoring and early warning of the water temperature of the engine according to the vehicle speed and/or the engine state and the engine water temperature obtained in real time includes: determining a driving state according to the vehicle speed and the engine state; and monitoring and early warning the water temperature of the engine according to the driving state and the water temperature of the engine acquired in real time.
Optionally, the determining a driving state according to the vehicle speed and the engine state includes: determining the driving state as an initial state in response to the engine state being a start state or a stop state; in response to the engine state being a running state and the vehicle speed being greater than or equal to a target speed, determining the driving state as a high-speed state; and determining the driving state as a slow speed state in response to the engine state being an operating state and the vehicle speed being less than the target speed.
Optionally, the monitoring and early warning of the water temperature of the engine according to the driving state and the water temperature of the engine obtained in real time includes: stopping high-temperature early warning in response to the driving state being the initial state; responding to the driving state that the driving state is the high-speed state and the water temperature of the engine is continuously greater than or equal to a target threshold value within a first time length, and starting the high-temperature early warning; and responding to the condition that the driving state is the slow speed state and the water temperature of the engine is continuously greater than or equal to the target threshold value in a second time period, and starting the high-temperature early warning, wherein the second time period is greater than the first time period.
Optionally, the monitoring and early warning of the water temperature of the engine according to the vehicle speed and/or the engine state and the engine water temperature obtained in real time includes: according to the engine state and the engine water temperature obtained in real time, water temperature monitoring and early warning are carried out on the engine, and the method specifically comprises the following steps: responding to the condition that the engine state is an operating state and the temperature of the engine water is continuously greater than or equal to a target threshold value within a first time period, and starting high-temperature early warning; and stopping the high-temperature early warning in response to the engine state being a start state or a stop state.
Optionally, the performing, according to the vehicle speed and/or the engine state and the engine water temperature obtained in real time, water temperature monitoring and early warning on the engine includes: according to the vehicle speed and the engine water temperature obtained in real time, water temperature monitoring and early warning are carried out on the engine, and the method specifically comprises the following steps: responding to the fact that the vehicle speed is larger than or equal to a target speed, and the water temperature of the engine is continuously larger than or equal to a target threshold value in a first time period, and starting high-temperature early warning; and responding to the condition that the vehicle speed is less than the target speed and the water temperature of the engine is continuously greater than or equal to the target threshold value in a second time period, and starting the high-temperature early warning, wherein the second time period is greater than the first time period.
Optionally, the method further comprises: and responding to the starting of the high-temperature early warning, starting engine torque limit protection, and gradually reducing the maximum torque of the engine from a first preset torque to a second preset torque.
Based on the same inventive concept, the present application further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the processor implements any one of the methods.
Based on the same inventive concept, the present application also provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform any one of the methods described herein.
Based on the same inventive concept, the application also provides a vehicle comprising the electronic equipment.
From the foregoing, the present application provides an engine water temperature monitoring and early warning method, an electronic device, a storage medium, and a vehicle, where the method includes: acquiring the current speed and the engine state of the vehicle; and monitoring and early warning the water temperature of the engine according to the vehicle speed and/or the engine state and the water temperature of the engine acquired in real time. The method provided by the application carries out water temperature monitoring and early warning on the engine by combining the vehicle speed and/or the engine state and multiple angles of the water temperature of the engine, adopts different early warning strategies under different working conditions, solves the problem of sending unnecessary high-temperature alarms under the condition that the engine still has the capability of heat dissipation, and avoids dispersing the attention of drivers and causing unnecessary panic.
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In order to more clearly illustrate the technical solutions in the present application or the related art, the drawings needed to be used in the description of the embodiments or the related art will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic flow chart of an engine water temperature monitoring and early warning method according to an embodiment of the present application;
fig. 2 is a schematic flow chart illustrating a process of determining a driving state according to an embodiment of the present application;
FIG. 3 is a schematic flow chart illustrating water temperature monitoring and warning according to the engine state in the embodiment of the present disclosure;
FIG. 4 is a schematic flow chart illustrating a water temperature monitoring and early warning process according to a vehicle speed in the embodiment of the present application;
fig. 5 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to the accompanying drawings in combination with specific embodiments.
It should be noted that technical terms or scientific terms used in the embodiments of the present application should have a general meaning as understood by those having ordinary skill in the art to which the present application belongs, unless otherwise defined. The use of "first," "second," and similar terms in the embodiments of the present application is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
For ease of understanding, the engine heat dissipation principle is briefly stated below:
the main heat dissipation strategy of most automobile engines is water cooling, i.e. the heat dissipation of the engine is performed by using circulating cooling water or antifreeze. The antifreeze of the water-cooled engine has two circulation paths in the vehicle, one is a large circulation, and the other is a small circulation. When the engine is just started, the antifreeze liquid is in small circulation, and the antifreeze liquid cannot pass through the radiating water tank at this time, so that the temperature of the engine can be quickly raised when the engine is started. When the engine reaches a normal working range, the anti-freezing liquid can dissipate heat through the heat dissipation water tank, so that the engine is maintained in a normal temperature range.
In addition, the engine can also be assisted by heat radiation for heat dissipation, although most of heat of the engine is dissipated through the circulating cooling water system, a part of heat is still dissipated through the surface radiation of the engine, and when the vehicle starts to move forwards, a part of radiation heat can be taken away by airflow flowing through the surface of the vehicle, so that the heat dissipation of the engine is further assisted.
Therefore, only when the engine is in a running state and the vehicle runs at a high speed, the engine heat dissipation system can exert one hundred percent of heat dissipation capacity, and in the related art, only the early warning is carried out according to the water temperature of the engine, so that the alarm that the water temperature of the engine is too high can be still sent to the personnel in the vehicle under the condition that some engines have the residual heat dissipation capacity, the attention of the driver is dispersed, and unnecessary panic is caused.
In view of the above, an embodiment of the present application provides an engine water temperature monitoring and early warning method, as shown in fig. 1, including:
and S101, acquiring the current speed and the current engine state of the vehicle. In specific implementation, the vehicle speed and the engine state may be acquired through a Controller Area Network (CAN).
And S102, carrying out water temperature monitoring and early warning on the engine according to the vehicle speed and/or the engine state and the engine water temperature acquired in real time. The method comprises the steps of carrying out water temperature monitoring and early warning on an engine according to the vehicle speed and/or the engine state and the water temperature of the engine obtained in real time, further determining different water temperature monitoring and early warning strategies according to the vehicle speed and/or the engine state, and then monitoring whether the water temperature of the engine needs to be subjected to high-temperature early warning according to the determined water temperature monitoring and early warning strategies.
The method provided by the application carries out water temperature monitoring and early warning on the engine by combining the vehicle speed and/or the engine state and a plurality of angles of water temperature of the engine, adopts different early warning strategies under different working conditions, solves the problem that unnecessary high-temperature warning is sent under the condition that the engine still has the capability of heat dissipation, and avoids distracting drivers and causing unnecessary panic.
In the specific implementation, whether the received vehicle speed is judged by an Electronic Stability Program (ESP), the ESP is composed of a control unit, a steering sensor, a wheel sensor, a side slip sensor, a lateral acceleration sensor and the like, the current vehicle speed can be judged according to signals of the sensors, and if data collected by the sensors are correctly received, a vehicle speed validity signal is sent, so that the vehicle speed is received. However, the sensor may have a fault, so the embodiment includes a water temperature monitoring and early warning condition based on the engine state (and the engine water temperature) alone.
Whether the engine state is received or not is judged through an engine state signal sent by the CAN network. However, the CAN network may have communication failure, so the above embodiment includes the case of performing water temperature monitoring and early warning according to the vehicle speed (and the water temperature of the engine) alone.
The present application provides an embodiment in a case where the vehicle speed and the engine state can be acquired, in which the step S102 includes:
and step S201, determining a driving state according to the vehicle speed and the engine state.
And S202, carrying out water temperature monitoring and early warning on the engine according to the driving state and the engine water temperature acquired in real time.
The method provided by the application is used for monitoring and early warning the water temperature of the engine by combining the three angles of the vehicle speed, the engine state and the water temperature of the engine, and can solve the problem of sending unnecessary high-temperature alarm under the condition that the engine still can dissipate heat by utilizing more early warning strategies, so that the condition that the attention of a driver is dispersed and unnecessary panic is caused is further avoided.
In some embodiments, as shown in fig. 2, the step S201 includes:
and determining the driving state as an initial state in response to the engine state being a starting state or a stopping state. In specific implementation, the initial state may be a state when the vehicle is just powered on or a state when the engine is just started.
And determining the running state as a high-speed state in response to the engine state being a running state and the vehicle speed being greater than or equal to a target speed. In a specific implementation, the high-speed state may be a state in which the vehicle is normally running. In a specific embodiment, the target speed is 8km/h to 12km/h, preferably 10km/h. The target speed is the minimum speed of the automobile running normally on a smooth road, and the adjustment of the target speed based on the principle is within the protection scope of the application by the technical personnel in the field without creative work.
And in response to the engine state being a running state and the vehicle speed being less than the target speed, determining the driving state to be a slow state. In specific implementation, the slow speed state may be a state in which the vehicle travels at a slower speed when the vehicle encounters a traffic jam or the like.
According to the vehicle speed and the engine state, three different vehicle driving states can be determined, different early warning strategies can be adopted conveniently according to the driving states, the problem that unnecessary high-temperature alarms are sent under the condition that the engine still has the capability of heat dissipation is further solved, and the phenomenon that driver attention is dispersed and unnecessary panic is caused is avoided.
Those skilled in the art can know that the operating state of the engine includes a stop state, a start state, an idle state, a driving state, and a coasting state, and the operating state in the above embodiments of the present application includes an idle state, a driving state, and a coasting state.
In some embodiments, the step S202 includes:
responding to the initial state of the driving state, executing a first water temperature monitoring and early warning strategy: and stopping high-temperature early warning. According to the engine heat dissipation principle, when the driving state is the initial state, namely the engine is just started, because the engine is in a low-temperature state with high probability, the antifreeze liquid is in a small circulation state, the antifreeze liquid cannot pass through the heat dissipation water tank at this time, and because the vehicle is in a static state, heat radiation cannot take away much heat, and the engine also has great heat dissipation potential at this time. However, considering the hot summer, if the vehicle passes through the direct sunlight for a long time, the temperature of the engine is likely to exceed the early warning threshold value just after starting, but the high temperature of the engine in the case can be completely dissipated through the large circulation of the cooling liquid and the heat radiation after the vehicle starts to run, and the early warning of the high temperature of the engine in the case is not necessary. In the embodiment of the application, the sending of the high-temperature early warning information is stopped under the condition, so that the problem of sending unnecessary high-temperature alarms under the condition that the engine still has the capability of heat dissipation can be further solved, and the distraction of the attention of a driver and the unnecessary panic are further avoided.
Responding to the driving state as the high-speed state, and executing a second water temperature monitoring and early warning strategy: and starting the high-temperature early warning when the water temperature of the engine is continuously greater than or equal to a target threshold value in a first time length. If the driving state is a high-speed state, it indicates that the vehicle engine cooling system is performing full-load cooling operation, and in this case, the engine water temperature needs to be monitored more closely.
In a specific embodiment, the first time period is 2s to 120s, the target threshold is 108 ℃ to 110 ℃, the setting of the value refers to the values of some parameters related to engine overheating in the related art, and a person skilled in the art may refer to the first time period and the target threshold which may cause the engine to malfunction in an actual situation when implementing the specific embodiment, for example, if a certain type of engine has good heat dissipation performance due to its own design, the target threshold designed for the engine may be higher than 110 ℃, and the first time period may be higher than 120s; if a certain engine has poor heat dissipation performance due to its own design, the target threshold value for the engine design may be lower than 108 ℃, and the first time period may be 2s to 50s. The setting of the target threshold and the first duration by those skilled in the art without creative efforts is within the protection scope of the present application, and the following second duration and normal threshold are the same and will not be described in detail later.
Responding to the driving state as the slow speed state, and executing a third water temperature monitoring and early warning strategy: and starting the high-temperature early warning when the temperature of the engine water is continuously greater than or equal to the target threshold value within a second time period, wherein the second time period is greater than the first time period. If the driving state is a slow state, the engine heat dissipation system of the vehicle still has a certain heat dissipation potential because the heat radiation heat dissipation cannot be driven by the flow of the faster air, so that the monitoring force of the water temperature of the engine can be properly reduced, and the response early warning time is relatively prolonged. In a specific embodiment, the second time period is 120s to 600s.
In the embodiment of the application, the starting of the high-temperature early warning comprises sending a high-temperature early warning message, starting a high-temperature prompt and other technical means capable of prompting that the temperature of water in an engine of a vehicle is too high. In a specific embodiment, in response to starting the high temperature warning, the ECM (Engine control module) determines that the Engine water temperature is high according to internal logic, sends a signal 1 with a high water temperature warning flag 1 through a PT Controller Area Network (PT Controller Area Network), and the meter receives the signal 1 through the PT CAN to prompt an in-vehicle user that the Engine water temperature is too high; if the high-temperature early warning information does not need to be sent, the ECM judges that the water temperature of the engine is normal according to internal logic, a signal 2 with a normal water temperature warning zone bit 2 is sent through the PT CAN, and the instrument receives the signal 2 through the PT CAN and does not prompt a user in the vehicle that the water temperature of the engine is too high. The prompt of the user in the vehicle that the water temperature of the engine is too high can be realized by lighting a high water temperature indicator lamp on an instrument panel, or words of 'the water temperature of the engine is high, please stop safely' are displayed on other display devices in the vehicle. In the embodiment of the present application, reference may be made to this paragraph for content related to starting high-temperature early warning, which will not be described in detail later.
It should be noted that, when the driving state changes, it is determined whether to start the high temperature early warning and restart the timing, for example, when the driving state changes from the slow state to the high state, the first time duration needs to be restarted, and similarly, when the driving state changes from the high state to the slow state, the second time duration needs to be restarted.
Because the current speed and the engine state of the vehicle can not be successfully acquired every time in actual use, different early warning strategies are provided according to different conditions in the following embodiment of the application, so that the engine water temperature monitoring and early warning can cover all the conditions possibly met in driving.
In some embodiments, when the vehicle speed cannot be obtained successfully, the water temperature monitoring and warning is performed on the engine according to the engine state and the engine water temperature obtained in real time, as shown in fig. 3, specifically including:
and responding to the engine state as an operating state, executing the second water temperature monitoring and early warning strategy: and starting high-temperature early warning when the water temperature of the engine is continuously greater than or equal to the target threshold value in the first time length.
Responding to the condition that the engine state is a starting state or a stopping state, executing the first water temperature monitoring and early warning strategy: and stopping the high-temperature early warning.
When the water temperature monitoring and early warning can not be carried out according to the state of the engine and the water temperature of the engine under the condition that the vehicle speed can not be received, the full-load heat dissipation of the engine heat dissipation system is realized when the default engine is in the running state, and the problem that the high-temperature early warning can not be carried out on the engine in time is avoided. The further explanation and beneficial effects of the first and second water temperature monitoring and early warning strategies and the following third water temperature monitoring and early warning strategy are the same as those in the foregoing embodiment, and are not repeated.
In some embodiments, when the engine state cannot be successfully obtained, the water temperature monitoring and warning is performed on the engine according to the vehicle speed and the engine water temperature obtained in real time, as shown in fig. 4, specifically including:
responding to the vehicle speed being more than or equal to the target speed, executing the second water temperature monitoring and early warning strategy: and starting high-temperature early warning when the water temperature of the engine is continuously greater than or equal to a target threshold value in a first time period.
Responding to the vehicle speed being less than the target speed, executing the third water temperature monitoring and early warning strategy: and starting high-temperature early warning when the water temperature of the engine is continuously greater than or equal to the target threshold value within a second time period, wherein the second time period is greater than the first time period.
Under the condition that the engine state cannot be received, when water temperature monitoring and early warning are carried out only according to the vehicle speed and the water temperature of the engine, the default engine is always in the running state, the engine cooling system has certain cooling potential, and the problem that high-temperature early warning cannot be carried out on the engine in time is avoided. In some embodiments, when the vehicle speed and the engine state cannot be successfully obtained, the water temperature monitoring and early warning is performed on the engine according to the engine water temperature obtained in real time, and the method specifically includes:
executing the second water temperature monitoring and early warning strategy: and responding to the fact that the water temperature of the engine is continuously greater than or equal to a target threshold value in a first time period, and sending high-temperature early warning information.
Under the condition that the vehicle speed and the engine state cannot be received, when water temperature monitoring and early warning are carried out only according to the water temperature of the engine, the default driving state is always in a high-speed state, the heat dissipation system of the engine dissipates heat at full load, and the problem that high-temperature early warning cannot be carried out on the engine in time is avoided.
In some embodiments, the method further comprises:
and responding to the starting of the high-temperature early warning, starting engine torque limit protection, and gradually reducing the maximum torque of the engine from a first preset torque to a second preset torque.
By reducing the torque of the engine, the power of the engine can be reduced, work is reduced, the damage of components caused by continuous overheating of the engine is fundamentally avoided while high-temperature early warning is started, the service life of the engine is prolonged, and the maintenance cost is reduced.
The first preset torque is rated maximum torque of an engine, for example, 200N · m, and the second preset torque is torque corresponding to the lowest allowable running speed of a vehicle on a highway, for example, 80N · m, and is not limited specifically, so that the vehicle can maintain a vehicle speed of 70km/h under a steady state of a flat road; the method for controlling the maximum torque of the engine may be, for example, without limitation, the intake air amount of the engine.
In a specific embodiment, the gradually decreasing the maximum torque of the engine from the first preset torque to the second preset torque further comprises:
gradually reducing the maximum torque of the engine from the first preset torque to the second preset torque according to a preset attenuation proportion; and/or gradually reducing the maximum torque of the engine from the first preset torque to the second preset torque within a preset attenuation time.
The method comprises the steps that a preset attenuation proportion and/or preset attenuation time are set, so that the process that the maximum torque of an engine is reduced from a first preset torque to a second preset torque is changed in a gradient mode, the vehicle can be stably changed in speed, user experience is improved, the preset attenuation proportion is reduced by 1% -2% of the first preset torque every 50ms, the preset attenuation time is 8s, and the preset attenuation proportion and the preset attenuation time can be adjusted according to requirements, and are not limited specifically; the first preset torque may also be reduced to the second preset torque from the first preset torque according to a preset attenuation ratio within a preset attenuation time, which is not limited specifically.
In some embodiments, the method further comprises:
and after responding to the starting of the high-temperature early warning, stopping the high-temperature early warning when the water temperature of the engine is lower than a normal threshold value.
When the temperature of the engine is recovered to be normal through the heat dissipation system, the alarm is stopped, and the condition that the attention of a driver is dispersed and unnecessary panic is caused is further avoided. In a specific embodiment, the normal threshold is 108 ℃ when the target threshold is 110 ℃, or 106 ℃ when the target threshold is 108 ℃.
In some embodiments, the method further comprises:
and after the high-temperature early warning is started, the water temperature of the engine is lower than the normal threshold, the torque limit protection of the engine is removed, and the maximum torque of the engine is increased from the second preset torque to the first preset torque so as to recover the normal working efficiency of the engine.
In a specific embodiment, the process of increasing the maximum torque of the engine from the second preset torque to the first preset torque is also changed in a gradient manner, so as to ensure a smooth change of the vehicle speed, and the changing manner is the same as the manner of reducing the maximum torque, which is not described herein again.
It should be noted that the method of the embodiment of the present application may be executed by a single device, such as a computer or a server. The method of the embodiment can also be applied to a distributed scene and completed by the mutual cooperation of a plurality of devices. In such a distributed scenario, one of the multiple devices may only perform one or more steps of the method of the embodiment, and the multiple devices interact with each other to complete the method.
It should be noted that the foregoing describes some embodiments of the present application. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
Based on the same inventive concept, corresponding to the method of any of the above embodiments, the present application further provides an engine water temperature monitoring and early warning device, comprising:
the vehicle control system comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire the current vehicle speed and the engine state of a vehicle;
and the early warning module is configured to perform water temperature monitoring and early warning on the engine according to the vehicle speed and/or the engine state and the engine water temperature acquired in real time.
The device that this application provided combines speed of a motor vehicle and/or engine state and engine water temperature multi-angle to carry out the temperature monitoring early warning to the engine, adopts different early warning tactics under different operating modes, has solved and has still sent the problem of unnecessary high temperature alarm under the radiating circumstances of ability at the engine, avoids the distraction driver attention and causes unnecessary panic.
In some embodiments, the early warning module comprises a first early warning unit configured to:
determining a driving state according to the vehicle speed and the engine state;
and monitoring and early warning the water temperature of the engine according to the driving state and the water temperature of the engine acquired in real time.
In some embodiments, the first pre-warning unit is further configured to: determining the driving state as an initial state in response to the engine state being a start state or a stop state;
in response to the engine state being a running state and the vehicle speed being greater than or equal to a target speed, determining the driving state as a high-speed state;
and in response to the engine state being a running state and the vehicle speed being less than the target speed, determining the driving state to be a slow state.
In some embodiments, the first warning unit is further configured to: and stopping high-temperature early warning in response to the driving state being the initial state.
In some embodiments, the early warning unit is further configured to:
responding to the condition that the driving state is the high-speed state and the water temperature of the engine is continuously greater than or equal to a target threshold value in a first time period, and starting the high-temperature early warning;
and responding to the condition that the driving state is the slow speed state and the water temperature of the engine is continuously greater than or equal to the target threshold value in a second time period, and starting the high-temperature early warning, wherein the second time period is greater than the first time period.
In some embodiments, the early warning module comprises a second early warning unit configured to:
according to the engine state and the engine water temperature obtained in real time, water temperature monitoring and early warning are carried out on the engine, and the method specifically comprises the following steps:
responding to the condition that the engine state is an operating state and the water temperature of the engine is continuously greater than or equal to a target threshold value in a first time period, and starting high-temperature early warning;
and stopping the high-temperature early warning in response to the engine state being a start state or a stop state.
In some embodiments, the early warning module comprises a third early warning unit configured to:
according to the vehicle speed and the engine water temperature obtained in real time, water temperature monitoring and early warning are carried out on the engine, and the method specifically comprises the following steps: responding to the fact that the vehicle speed is larger than or equal to a target speed, and the water temperature of the engine is continuously larger than or equal to a target threshold value in a first time period, and starting high-temperature early warning;
and responding to the condition that the vehicle speed is less than the target speed and the water temperature of the engine is continuously greater than or equal to the target threshold value in a second time period, and starting the high-temperature early warning, wherein the second time period is greater than the first time period.
In some embodiments, the apparatus further comprises a torque limiting protection module configured to:
and responding to the starting of the high-temperature early warning, starting engine torque limit protection, and gradually reducing the maximum torque of the engine from a first preset torque to a second preset torque.
For convenience of description, the above devices are described as being divided into various modules by functions, and are described separately. Of course, the functionality of the various modules may be implemented in the same one or more pieces of software and/or hardware in the practice of the present application.
The device of the embodiment is used for realizing the corresponding engine water temperature monitoring and early warning method in any one of the embodiments, has the beneficial effects of the corresponding method embodiment, and is not described again.
Based on the same inventive concept, corresponding to the method of any embodiment, the application further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and running on the processor, and when the processor executes the program, the engine water temperature monitoring and early warning method of any embodiment is implemented.
Fig. 5 is a schematic diagram illustrating a more specific hardware structure of an electronic device according to this embodiment, where the electronic device may include: a processor 1010, a memory 1020, an input/output interface 1030, a communication interface 1040, and a bus 1050. Wherein the processor 1010, memory 1020, input/output interface 1030, and communication interface 1040 are communicatively coupled to each other within the device via bus 1050.
The processor 1010 may be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits, and is configured to execute related programs to implement the technical solutions provided in the embodiments of the present disclosure.
The Memory 1020 may be implemented in the form of a ROM (Read Only Memory), a RAM (Random Access Memory), a static Memory device, a dynamic Memory device, or the like. The memory 1020 may store an operating system and other application programs, and when the technical solution provided by the embodiments of the present specification is implemented by software or firmware, the relevant program codes are stored in the memory 1020 and called to be executed by the processor 1010.
The input/output interface 1030 is used for connecting an input/output module to input and output information. The i/o module may be configured as a component in a device (not shown) or may be external to the device to provide a corresponding function. The input devices may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output devices may include a display, a speaker, a vibrator, an indicator light, etc.
The communication interface 1040 is used for connecting a communication module (not shown in the drawings) to implement communication interaction between the present device and other devices. The communication module can realize communication in a wired mode (for example, USB, network cable, etc.), and can also realize communication in a wireless mode (for example, mobile network, WIFI, bluetooth, etc.).
It should be noted that although the above-mentioned device only shows the processor 1010, the memory 1020, the input/output interface 1030, the communication interface 1040 and the bus 1050, in a specific implementation, the device may also include other components necessary for normal operation. In addition, those skilled in the art will appreciate that the above-described apparatus may also include only those components necessary to implement the embodiments of the present description, and not necessarily all of the components shown in the figures.
The electronic device of the above embodiment is used for implementing the corresponding engine water temperature monitoring and early warning method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiments, which are not described herein again.
Based on the same inventive concept, corresponding to any of the above embodiments, the present application also provides a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the engine water temperature monitoring and early warning method according to any of the above embodiments.
Computer-readable media, including both permanent and non-permanent, removable and non-removable media, for storing information may be implemented in any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device.
The computer instructions stored in the storage medium of the above embodiment are used to enable the computer to execute the engine water temperature monitoring and early warning method according to any one of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which are not described herein again.
Based on the same inventive concept, corresponding to any of the above embodiments, the present application further provides a vehicle, where the vehicle includes the electronic device of the above embodiments, and has the beneficial effects of the embodiments of the corresponding electronic device, and details are not repeated herein.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the context of the present application, technical features in the above embodiments or in different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application described above, which are not provided in detail for the sake of brevity.
In addition, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures for simplicity of illustration and discussion, and so as not to obscure the embodiments of the application. Further, devices may be shown in block diagram form in order to avoid obscuring embodiments of the application, and this also takes into account the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the embodiments of the application are to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the application, it should be apparent to one skilled in the art that the embodiments of the application can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures, such as Dynamic RAM (DRAM), may use the discussed embodiments.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present application are intended to be included within the scope of the present application.
Claims (10)
1. An engine water temperature monitoring and early warning method is characterized by comprising the following steps:
acquiring the current speed and the engine state of the vehicle;
and monitoring and early warning the water temperature of the engine according to the vehicle speed and/or the engine state and the water temperature of the engine acquired in real time.
2. The method of claim 1, wherein the performing water temperature monitoring and early warning on the engine according to the vehicle speed and/or the engine state and the engine water temperature acquired in real time comprises:
determining a driving state according to the vehicle speed and the engine state;
and monitoring and early warning the water temperature of the engine according to the driving state and the water temperature of the engine acquired in real time.
3. The method of claim 2, wherein determining a driving state based on the vehicle speed and the engine state comprises:
determining the driving state as an initial state in response to the engine state being a start state or a stop state;
in response to the engine state being a running state and the vehicle speed being greater than or equal to a target speed, determining the driving state as a high-speed state;
and determining the driving state as a slow speed state in response to the engine state being an operating state and the vehicle speed being less than the target speed.
4. The method according to claim 3, wherein the performing water temperature monitoring and early warning on the engine according to the driving state and the real-time acquired engine water temperature comprises:
stopping high-temperature early warning in response to the driving state being the initial state;
responding to the driving state that the driving state is the high-speed state and the water temperature of the engine is continuously greater than or equal to a target threshold value within a first time length, and starting the high-temperature early warning;
and responding to the driving state that the driving state is the slow speed state and the temperature of the engine water is continuously greater than or equal to the target threshold value within a second time period, and starting the high-temperature early warning, wherein the second time period is greater than the first time period.
5. The method according to claim 1, wherein the performing water temperature monitoring and early warning on the engine according to the vehicle speed and/or the engine state and the real-time acquired engine water temperature comprises:
according to the engine state and the engine water temperature obtained in real time, water temperature monitoring and early warning are carried out on the engine, and the method specifically comprises the following steps:
responding to the condition that the engine state is an operating state and the water temperature of the engine is continuously greater than or equal to a target threshold value in a first time period, and starting high-temperature early warning;
and stopping the high-temperature early warning in response to the engine state being a start state or a stop state.
6. The method according to claim 1, wherein the performing water temperature monitoring and early warning on the engine according to the vehicle speed and/or the engine state and the engine water temperature acquired in real time comprises:
according to the vehicle speed and the engine water temperature obtained in real time, water temperature monitoring and early warning are carried out on the engine, and the method specifically comprises the following steps:
responding to the fact that the vehicle speed is larger than or equal to a target speed, and the water temperature of the engine is continuously larger than or equal to a target threshold value in a first duration, and starting high-temperature early warning;
and responding to the condition that the vehicle speed is less than the target speed and the water temperature of the engine is continuously greater than or equal to the target threshold value in a second time period, and starting the high-temperature early warning, wherein the second time period is greater than the first time period.
7. The method of any of claims 4 to 6, further comprising:
and responding to the starting of the high-temperature early warning, starting engine torque limit protection, and gradually reducing the maximum torque of the engine from a first preset torque to a second preset torque.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method according to any of claims 1 to 7 when executing the program.
9. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1 to 7.
10. A vehicle characterized by comprising the electronic device of claim 8.
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