CN118128677A - Method, device, system, vehicle and storage medium for heating cooling water - Google Patents
Method, device, system, vehicle and storage medium for heating cooling water Download PDFInfo
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- CN118128677A CN118128677A CN202410332737.7A CN202410332737A CN118128677A CN 118128677 A CN118128677 A CN 118128677A CN 202410332737 A CN202410332737 A CN 202410332737A CN 118128677 A CN118128677 A CN 118128677A
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- 239000000498 cooling water Substances 0.000 title claims abstract description 230
- 238000000034 method Methods 0.000 title claims abstract description 85
- 238000010438 heat treatment Methods 0.000 title claims abstract description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000001816 cooling Methods 0.000 claims abstract description 72
- 239000000446 fuel Substances 0.000 claims abstract description 61
- 230000036541 health Effects 0.000 claims abstract description 38
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- 230000036760 body temperature Effects 0.000 abstract description 11
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Abstract
The application provides a method, a device, a system, a vehicle and a storage medium for heating cooling water, wherein after receiving a starting instruction of an engine, the method determines the health state grade of the engine; when the health status level is low, the health status of the engine is poor, the engine body temperature is low, and the fuel in the engine cannot be gasified and participate in combustion after being injected. At this time, the method controls the target valve in the target vehicle to be opened, and the cooling water in the engine cooling system may flow to the water pump in the warm air system. Then, the method controls the water pump to pump cooling water to the heater in the warm air system, and controls the heater to heat the cooling water and then return the heated cooling water to the engine cooling system. Since the cooling water circulates in the engine cooling system, increasing the cooling water temperature also indirectly increases the engine block temperature of the engine. Therefore, after the engine is started, the fuel oil can be fully combusted, and the engine oil is prevented from being diluted, so that the abrasion condition of the friction pair is relieved.
Description
Technical Field
The present application relates to the field of vehicles, and more particularly, to a method, apparatus, system, vehicle, and storage medium for heating cooling water in the field of vehicles.
Background
With the development of social economy and the improvement of the living standard of people, more and more vehicles enter the lives of people. But the problems associated with vehicles are increasing. Including problems associated with engines in vehicles.
In some embodiments, where the temperature of the outside air is low, the engine body temperature of the engine is also low, and the fuel in the engine cannot be gasified after injection, and cannot sufficiently participate in combustion. After the piston ring in the engine moves up and down, unburned fuel is scraped down into the oil pan, engine oil in the oil pan is diluted, the engine oil is deteriorated, the lubricating performance of the engine oil is seriously reduced, and further abrasion of a friction pair in the engine is seriously caused.
Therefore, a method of heating cooling water is needed to raise the body temperature of the engine so that the fuel in the engine is fully combusted to avoid dilution of the engine oil.
Disclosure of Invention
The application provides a method, a device, a system, a vehicle and a storage medium for heating cooling water, which can improve the body temperature of an engine, enable fuel oil in the engine to be fully combusted, avoid engine oil to be diluted and further relieve the abrasion condition of a friction pair in the engine.
In a first aspect, there is provided a method of heating cooling water, the method comprising: determining a state of health level of an engine in a target vehicle in response to a start command of the engine; under the condition that the health state grade is smaller than a preset grade, a target valve in the target vehicle is controlled to be opened, and the target valve is used for communicating an engine cooling system of the target vehicle with a warm air system of the target vehicle so that cooling water in the engine cooling system flows to a water pump in the warm air system; the water pump is controlled to pump the cooling water to a heater in the warm air system, and the heater is controlled to heat the cooling water and then return the heated cooling water to the engine cooling system.
In the technical scheme, after receiving a starting instruction of the engine, the method determines the health state grade of the engine; under the condition that the health status grade is lower, the engine is poor in health status and poor in running status, the engine body temperature of the engine is also lower, and the fuel in the engine cannot be gasified after being injected and cannot fully participate in combustion. At this time, the method controls a target valve in the target vehicle to open, and since the target valve communicates an engine cooling system of the target vehicle and a warm air system of the target vehicle, cooling water in the engine cooling system can flow to a water pump in the warm air system. Then, the method controls the water pump to pump the cooling water to a heater in the warm air system, and controls the heater to heat the cooling water and then return the heated cooling water to the engine cooling system. Since the cooling water can circulate in the engine cooling system, increasing the temperature of the cooling water can also indirectly increase the body temperature of the engine. Therefore, after the engine is started, fuel oil in the engine can be fully combusted, and engine oil is prevented from being diluted, so that the abrasion condition of friction pairs in the engine is relieved.
With reference to the first aspect, in some possible implementations, in response to a start instruction of an engine in a target vehicle, determining a health status level of the engine includes: responding to a starting instruction of the engine, and acquiring a plurality of state parameters of the engine after the engine is started last time; determining whether the plurality of state parameters satisfy a plurality of candidate state conditions; under the condition that the plurality of state parameters meet the plurality of candidate state conditions, increasing a first numerical value by a first preset value to obtain a second numerical value, wherein the first numerical value is the times that the plurality of state parameters meet the plurality of candidate state conditions in the history process; and determining the health state grade based on the magnitude relation between the second numerical value and a second preset value.
In the technical scheme, after receiving a starting instruction of an engine, the method obtains a plurality of state parameters of the engine after the engine is started last time; determining whether the plurality of state parameters satisfy a plurality of candidate state conditions; and under the condition that the plurality of state parameters meet the plurality of candidate state conditions, increasing the first numerical value by a first preset value to obtain a second numerical value, wherein the first numerical value is the times that the plurality of state parameters meet the plurality of candidate state conditions in the history process. That is, the method determines the health status level of the engine based on the status parameter of the engine over a period of time, satisfying the accumulated value of the preset plurality of candidate status conditions. In this process, the method avoids the malignant influence of the contingency on the judgment result, and therefore, the method can accurately determine the health status level of the engine.
With reference to the first aspect and the foregoing implementation manners, in some possible implementation manners, determining whether the plurality of state parameters meet a plurality of candidate state conditions includes any one of the following: determining whether at least one of a cooling water temperature in the plurality of state parameters, an intake air temperature of the engine, and a rotational speed of the engine is less than a preset cooling water temperature, the intake air temperature is less than a preset intake air temperature, and the rotational speed is less than a preset rotational speed, respectively, is satisfied; determining whether an actual fuel consumption of the engine in the plurality of state parameters satisfies that the actual fuel consumption in the plurality of candidate state conditions is less than a preset fuel consumption.
In the above technical solution, the method lists two ways of determining whether the plurality of state parameters meet a plurality of candidate state conditions. First, determining whether at least one of a cooling water temperature, an intake air temperature and a rotational speed of the engine is satisfied correspondingly with at least one of the cooling water temperature being less than a preset cooling water temperature, the intake air temperature being less than a preset intake air temperature and the rotational speed being less than a preset rotational speed; second, it is determined whether the actual fuel consumption of the engine is less than a preset fuel consumption. The above process takes two ways, and can increase the accuracy of determining that the health status level of the engine is less than the preset level.
With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, the method for determining the preset fuel consumption includes: acquiring an actual intake air temperature of the engine; comparing the actual air intake temperature with a plurality of sample air intake temperatures, and determining a target air intake temperature matched with the actual air intake temperature from the plurality of sample air intake temperatures; and determining the fuel consumption corresponding to the target air inlet temperature as the preset fuel consumption.
In the technical scheme, the actual air inlet temperature of the engine has corresponding standard fuel consumption. Therefore, the method accurately determines the preset fuel consumption amount based on the actual intake air temperature of the engine and the fuel consumption amounts corresponding to the plurality of sample intake air temperatures.
With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, controlling the heater to heat the cooling water includes: determining a target power of the heater for heating the cooling water based on a temperature of the cooling water before heating and a target temperature at which the cooling water should be heated; the heater is controlled to heat the cooling water at a target power.
In the above-described technical solution, before the cooling water is heated, the cooling water has an initial temperature (temperature of the cooling water before heating) and a target temperature to be heated. And the heater is operated at a certain power, the target power of the heater can be determined based on the temperature of the cooling water before heating and the target temperature. In this way, when the heater is operated at the target power, the temperature of the cooling water can be heated to the target temperature relatively quickly.
With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, controlling the heater to heat the cooling water includes: acquiring the current residual electric quantity of the target vehicle; correcting the target power and the target temperature based on the current residual electric quantity under the condition that the current residual electric quantity is smaller than a preset electric quantity; the heater is controlled to heat the cooling water to the corrected temperature at the corrected power.
In the above technical solution, when the target vehicle is a hybrid vehicle and the current remaining power of the target vehicle is low, the target vehicle needs the engine to provide a power source for the target vehicle. And when the target vehicle is a hybrid vehicle and the current residual capacity of the target vehicle is high, the target vehicle can provide a power source for the target vehicle through the engine and the power battery. Therefore, when the remaining power is low, the target vehicle needs the engine to provide more power than when the remaining power is high. Therefore, the method corrects the target power and the target temperature based on the lower residual electric quantity, and controls the heater to heat the cooling water to the corrected temperature with the corrected power so as to enable the engine to reach the optimal health condition and provide a power source for the target vehicle.
With reference to the first aspect and the foregoing implementation manner, in some possible implementation manners, the method further includes: acquiring the temperature of the heated cooling water; and controlling the target valve to be closed and starting the engine under the condition that the temperature of the cooling water after heating is greater than or equal to the target temperature.
According to the technical scheme, when the temperature of the cooling water is increased after heating, the engine body temperature of the engine can be shown to be increased, if the engine is started, fuel in the engine can be fully combusted, and even if a piston ring in the engine moves up and down, the fuel cannot be scraped into the oil bottom shell downwards, so that engine oil dilution cannot be caused. Therefore, the method can avoid the dilution of the engine oil, thereby relieving the abrasion condition of the friction pair in the engine.
In a second aspect, there is provided an apparatus for heating cooling water, the apparatus comprising: a determination module for determining a health status level of an engine in a target vehicle in response to a start command of the engine; a control module for: under the condition that the health state grade is smaller than a preset grade, a target valve in the target vehicle is controlled to be opened, and the target valve is used for communicating an engine cooling system of the target vehicle with a warm air system of the target vehicle so that cooling water in the engine cooling system flows to a water pump in the warm air system; the water pump is controlled to pump the cooling water to a heater in the warm air system, and the heater is controlled to heat the cooling water and then return the heated cooling water to the engine cooling system.
With reference to the second aspect, in some possible implementations, the determining module is specifically configured to: responding to a starting instruction of the engine, and acquiring a plurality of state parameters of the engine after the engine is started last time; determining whether the plurality of state parameters satisfy a plurality of candidate state conditions; under the condition that the plurality of state parameters meet the plurality of candidate state conditions, increasing a first numerical value by a first preset value to obtain a second numerical value, wherein the first numerical value is the times that the plurality of state parameters meet the plurality of candidate state conditions in the history process; and determining the health state grade based on the magnitude relation between the second numerical value and a second preset value.
With reference to the second aspect and the foregoing implementation manner, in some possible implementation manners, the determining module is configured to use any one of the following: determining whether at least one of a cooling water temperature in the plurality of state parameters, an intake air temperature of the engine, and a rotational speed of the engine is less than a preset cooling water temperature, the intake air temperature is less than a preset intake air temperature, and the rotational speed is less than a preset rotational speed, respectively, is satisfied; determining whether an actual fuel consumption of the engine in the plurality of state parameters satisfies that the actual fuel consumption in the plurality of candidate state conditions is less than a preset fuel consumption.
With reference to the second aspect and the foregoing implementation manner, in some possible implementation manners, the determining module is further configured to: acquiring an actual intake air temperature of the engine; comparing the actual air intake temperature with a plurality of sample air intake temperatures, and determining a target air intake temperature matched with the actual air intake temperature from the plurality of sample air intake temperatures; and determining the fuel consumption corresponding to the target air inlet temperature as the preset fuel consumption.
With reference to the second aspect and the foregoing implementation manner, in some possible implementation manners, the control module is specifically configured to: determining a target power of the heater for heating the cooling water based on a temperature of the cooling water before heating and a target temperature at which the cooling water should be heated; the heater is controlled to heat the cooling water at a target power.
With reference to the second aspect and the foregoing implementation manner, in some possible implementation manners, the control module is specifically further configured to: acquiring the current residual electric quantity of the target vehicle; correcting the target power and the target temperature based on the current residual electric quantity under the condition that the current residual electric quantity is smaller than a preset electric quantity; the heater is controlled to heat the cooling water to the corrected temperature at the corrected power.
With reference to the second aspect and the foregoing implementation manner, in some possible implementation manners, the apparatus further includes: the acquisition module is used for acquiring the temperature of the heated cooling water; the control module is also used for controlling the target valve to be closed and starting the engine under the condition that the temperature of the cooling water after heating is greater than or equal to the target temperature.
In a third aspect, a system for heating cooling water is provided, the system comprising a target valve for communicating an engine cooling system of a target vehicle with the water pump, the water pump being connected with the heater, a water pump, a heater, and a controller connected with the target valve, the water pump, the heater, and the engine, respectively;
The controller is used for:
determining a state of health level of an engine in a target vehicle in response to a start command of the engine;
Under the condition that the health state level is smaller than a preset level, controlling a target valve in the target vehicle to be opened so as to enable cooling water in the engine cooling system to flow to the water pump;
the water pump is controlled to pump the cooling water to the heater, and the heater is controlled to heat the cooling water and then return the heated cooling water to the engine cooling system.
In a fourth aspect, a vehicle is provided that includes a memory and a processor. The memory is for storing executable program code and the processor is for calling and running the executable program code from the memory such that the vehicle performs the method of the first aspect or any of the possible implementations of the first aspect.
Drawings
FIG. 1 is a schematic diagram of an engine cooling system according to an embodiment of the present disclosure;
FIG. 2 is a schematic flow chart of a method of heating cooling water provided by an embodiment of the application;
FIG. 3 is a schematic diagram of a frame for heating cooling water according to an embodiment of the present application;
FIG. 4 is a schematic diagram of another embodiment of a frame for heating cooling water;
FIG. 5 is a schematic diagram of a frame for heating cooling water by means of a warm air system according to an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a device for heating cooling water according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a system for heating cooling water according to an embodiment of the present application;
Fig. 8 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
Detailed Description
The technical scheme of the application will be clearly and thoroughly described below with reference to the accompanying drawings. Wherein, in the description of the embodiments of the present application, unless otherwise indicated, "/" means or, for example, a/B may represent a or B: the text "and/or" is merely an association relation describing the associated object, and indicates that three relations may exist, for example, a and/or B may indicate: the three cases where a exists alone, a and B exist together, and B exists alone, and furthermore, in the description of the embodiments of the present application, "plural" means two or more than two.
The terms "first," "second," and the like, are used below for descriptive purposes only and are not to be construed as implying or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
It should be appreciated that the engine, as a core component in a vehicle, is extremely complex in operating conditions. The gasoline in the engine generates great heat after combustion, and if the heat is not timely emitted, the engine can be permanently damaged due to overhigh temperature. This, when severe, can lead to economic and time losses for us and even traffic accidents. An "engine cooling system" is a system that radiates heat generated by an engine into the air, and acts as a "thermostat" for the engine, which is critical to maintaining proper operation of the engine. The engine cooling system has a division of air cooling and water cooling, and the engine cooling system using air as a cooling medium is called an air cooling system, and the cooling system using cooling water as a cooling medium is called a water cooling system. The present application relates generally to water cooling systems.
Specifically, the engine cooling system includes a cooling water pump, a radiator, a thermostat, a water jacket on the engine block and a water jacket on the cylinder head, and other additional devices. The cooling water pump extracts cooling water from the cooling water tank, pressurizes the cooling water, and then enters the water jacket on the engine body of the engine through the water diversion pipe. Thereafter, the cooling water flows around the water jacket wall and absorbs heat from the water jacket wall to raise the temperature. Then flows upward into the water jacket on the cylinder head, absorbs heat from the water jacket wall on the cylinder head, and flows into the radiator through the thermostat water inlet hose. And finally, the cooling water returns to the cooling water pump through a water outlet hose of the radiator, and the cooling water is circulated and reciprocated in such a way to take away heat generated after the gasoline in the engine is combusted.
Fig. 1 is a schematic diagram of an engine cooling system according to an embodiment of the present application.
Illustratively, as shown in FIG. 1, a water-cooled engine cooling system is shown, which includes a cooling water pump, an engine block, a cylinder head of the engine, a target valve (corresponding to the thermostat in the foregoing), and a radiator. Specifically, the cooling water pump extracts cooling water from the cooling water tank, pressurizes the cooling water, and then enters a water jacket on the engine body. Thereafter, the cooling water flows around the water jacket wall and absorbs heat from the water jacket wall to raise the temperature. And then flows upward into the water jacket on the cylinder head, absorbs heat from the water jacket wall on the cylinder head, and flows into the radiator through the target valve. And finally, the cooling water returns to the cooling water pump through the radiator, and the cooling water is circulated and reciprocated in such a way, so that heat generated after the gasoline in the engine is combusted is taken away.
It should be appreciated that cooling water primarily increases in temperature by entering a water jacket on the body of the engine, flowing around and absorbing heat from the water jacket wall. Then flows upwards into the water jacket on the cylinder cover, absorbs heat from the water jacket wall on the cylinder cover, and flows into the radiator through the target valve to take away heat generated after the gasoline in the engine is combusted.
However, when the temperature of the outside air is low, the body temperature of the engine is also low, and the fuel in the engine cannot be gasified after injection, and cannot sufficiently participate in combustion. After the piston ring in the engine moves up and down, unburned fuel is scraped down into the oil pan, engine oil in the oil pan is diluted, the engine oil is deteriorated, the lubricating performance of the engine oil is seriously reduced, and further abrasion of a friction pair in the engine is seriously caused. The above problems can be solved by increasing the body temperature of the engine.
The application adopts a mode of heating the cooling water based on the principle that the cooling water can circularly flow in the cooling system of the engine, so as to indirectly improve the engine body temperature of the engine, fully participate in the combustion of the fuel oil as much as possible when the temperature of the external air is lower, avoid the dilution of engine oil and further relieve the abrasion condition of a friction pair in the engine. Specific method implementation can be seen in fig. 2 as follows.
Fig. 2 is a schematic flow chart of a method of heating cooling water according to an embodiment of the present application.
It should be appreciated that a method of heating cooling water provided by the present application may be performed by a target vehicle, or may be specifically performed by a controller in the target vehicle. It should be appreciated that the controller is a vehicle control unit.
Illustratively, as shown in FIG. 2, the method 200 includes:
in step 201, the controller determines a state of health level of an engine in a target vehicle in response to a start command of the engine.
It should be appreciated that the "engine state of health level" in step 201 described above is used to quantify the state of health of the engine. It should also be appreciated that the function of the engine is to produce work by combusting fuel (gasoline or diesel) so that the vehicle is powered. The state of health level of the engine is thus particularly useful for quantifying the state of health of the engine in terms of burning fuel. That is, the better the state of health of the engine, the higher the state of health level of the engine when the fuel combustion in the engine is more sufficient; the worse the state of health of the engine, the lower the state of health level of the engine when the fuel combustion in the engine is less sufficient.
It should also be appreciated that the "target vehicle" in step 201 described above is a hybrid vehicle. In some embodiments, the hybrid vehicle is a hybrid electric vehicle that includes an engine and a power cell.
In a possible implementation, step 201 includes: the controller responds to a starting instruction of the engine to acquire a plurality of state parameters of the engine after the engine is started last time; the controller determining whether the plurality of state parameters satisfy a plurality of candidate state conditions; under the condition that the plurality of state parameters meet the plurality of candidate state conditions, the controller increases a first numerical value by a first preset value to obtain a second numerical value, wherein the first numerical value is the times that the plurality of state parameters meet the plurality of candidate state conditions in a historical process; the controller determines the health status level based on the magnitude relation between the second value and a second preset value.
It should be understood that the "state parameter of the engine" in the above-described aspects is used to describe a parameter when the engine is in an operating state. In some embodiments, the state parameter includes at least one of a rotational speed of the engine, a cooling water temperature of the engine, an amount of fuel consumed by the engine, an intake air temperature of the engine, an exhaust gas temperature of the engine, and a torque of the engine. It should also be appreciated that the "engine state parameters" in the above scenario are obtained prior to the time the engine is not started. In some embodiments, the plurality of state parameters are state parameters of the engine in a different time period after the last start of the engine. Optionally, the plurality of state parameters includes a highest cooling water temperature of the engine, a lowest intake air temperature of the engine, and a highest rotational speed of the engine in a first period after the last start of the engine.
It should also be appreciated that the "plurality of candidate state conditions" in the above scenario are in one-to-one correspondence with a plurality of state parameters. Taking the example that the plurality of state parameters include the rotational speed of the engine and the cooling water temperature of the engine, the plurality of candidate state conditions correspondingly include the rotational speed being less than a preset rotational speed and the cooling water temperature being less than a preset temperature.
In the above technical solution, after receiving a start command of an engine, the method starts a plurality of state parameters of the engine after the engine is started last time; determining whether the plurality of state parameters satisfy a plurality of candidate state conditions; and under the condition that the plurality of state parameters meet the plurality of candidate state conditions, increasing the first numerical value by a first preset value to obtain a second numerical value, wherein the first numerical value is the times that the plurality of state parameters meet the plurality of candidate state conditions in the history process. That is, the method determines the health status level of the engine based on the status parameter of the engine over a period of time, satisfying the accumulated value of the preset plurality of candidate status conditions. In this process, the method avoids the malignant influence of the contingency on the judgment result, and therefore, the method can accurately determine the health status level of the engine.
In some embodiments, the first preset value is a positive integer.
Optionally, the positive integer is 1.
In some embodiments, the second preset value is a product of a target number of times, which is a sum of a number of times that the plurality of state parameters do not satisfy the plurality of candidate state conditions, and the second value.
Optionally, the first coefficient is 80%.
In some embodiments, the controller determines the health status level based on the magnitude relationship of the second value and a second preset value, comprising: under the condition that the second value is smaller than the second preset value, the controller determines that the health state level of the engine is smaller than the preset level; and under the condition that the second value is larger than or equal to the second preset value, the controller determines that the health state level of the engine is larger than the preset level.
In one possible implementation, the controller determines whether the plurality of state parameters satisfy a plurality of candidate state conditions, including any of: the controller determining whether at least one of a cooling water temperature, an intake air temperature and a rotational speed of the engine among the plurality of state parameters is satisfied corresponding to at least one of the cooling water temperature being less than a preset cooling water temperature, the intake air temperature being less than a preset intake air temperature and the rotational speed being less than a preset rotational speed among the plurality of candidate state conditions; the controller determines whether an actual fuel consumption of the engine among the plurality of state parameters satisfies that the actual fuel consumption of the plurality of candidate state conditions is less than a preset fuel consumption.
In the above technical solution, the method lists two ways of determining whether the plurality of state parameters meet a plurality of candidate state conditions. First, determining whether at least one of a cooling water temperature, an intake air temperature and a rotational speed of the engine is satisfied correspondingly with at least one of the cooling water temperature being less than a preset cooling water temperature, the intake air temperature being less than a preset intake air temperature and the rotational speed being less than a preset rotational speed; second, it is determined whether the actual fuel consumption of the engine is less than a preset fuel consumption. The above process takes two ways, and can increase the accuracy of determining that the health status level of the engine is less than the preset level.
In some embodiments, the method for determining the cooling water temperature of the engine includes: the controller measures the cooling water temperature through a water temperature sensor on the water jacket of the engine block or cylinder head.
In some embodiments, the method for determining an intake air temperature of the engine includes: the controller measures the intake air temperature by a temperature sensor mounted on an intake manifold of the engine.
In some embodiments, the method of determining the rotational speed of the engine includes any one of: the controller detects the rotating speed of the engine through a crank shaft position sensor; the controller determining a first product between a transmission gear ratio, a final drive gear ratio, and a vehicle speed of the target vehicle; the controller determines a ratio between the first product and a wheel radius of the target vehicle as a rotational speed of the engine.
In some embodiments, the method for determining the actual fuel consumption of the engine includes: the controller obtains the mileage of the target vehicle after the target fuel quantity is filled; the controller determines the product of the ratio of the target fuel amount to the mileage and a third preset value as the actual fuel consumption amount.
In some embodiments, the third preset value is 100.
In a possible implementation manner, the method for determining the preset fuel consumption includes: the controller obtains the actual air inlet temperature of the engine; the controller compares the actual air inlet temperature with a plurality of sample air inlet temperatures and determines a target air inlet temperature matched with the actual air inlet temperature from the plurality of sample air inlet temperatures; the controller determines the fuel consumption corresponding to the target intake air temperature as the preset fuel consumption.
It should be understood that "the target intake air temperature that matches the actual intake air temperature" in the above-described scheme means that the temperature difference between the actual intake air temperature and the target intake air temperature is smaller than the preset temperature difference.
It should also be appreciated that the intake air temperature of the engine is positively correlated with the fuel consumption of the engine. An increase in the intake air temperature of the engine may cause a decrease in the combustion efficiency of the engine, and insufficient fuel combustion, resulting in an increase in fuel consumption.
In the technical scheme, the actual air inlet temperature of the engine has corresponding standard fuel consumption. Therefore, the method accurately determines the preset fuel consumption amount based on the actual intake air temperature of the engine and the fuel consumption amounts corresponding to the plurality of sample intake air temperatures.
And 202, under the condition that the health state level is smaller than a preset level, the controller controls a target valve in the target vehicle to be opened, wherein the target valve is used for communicating an engine cooling system of the target vehicle with a warm air system of the target vehicle so as to enable cooling water in the engine cooling system to flow to a water pump in the warm air system.
It should be appreciated that in the above scenario, cooling water may be circulated within the engine cooling system, which may avoid clogging of passages within the engine cooling system. When the engine is in a working state, the temperature of the cooling water is reasonably regulated and controlled, so that the engine can work in a normal temperature range. In a low-temperature environment, by increasing the temperature of the cooling water, the engine cooling system can be prevented from freezing in cold seasons.
It should also be appreciated that the "target valve" in step 202 described above may be in communication with an original engine cooling system in the target vehicle and an original warm air system in the target vehicle. The warm air system in the target vehicle is mainly used for increasing the temperature of the interior of the target vehicle. The warm air system comprises a water pump, a heater and a warm air core body. Wherein the water pump is used for conveying a fixed amount of liquid to the heater; the heater is used for heating the liquid; the warm air core body can provide warm air formed after heating in a vehicle in winter so as to improve the environmental temperature in the vehicle.
In some embodiments, the water pump is an electronic water pump.
In some embodiments, the controller controls the target valve to remain closed and start the engine if the state of health level is greater than the preset level.
In step 203, the controller controls the water pump to pump the cooling water to the heater in the warm air system, and controls the heater to heat the cooling water and then return the heated cooling water to the engine cooling system.
It should be appreciated that the target valve in the method 200 is used to communicate the engine cooling system of the target vehicle with the warm air system of the target vehicle, and with the target valve open, the cooling water in the engine cooling system flows to the water pump in the warm air system, and after the cooling water is heated by the heater in the warm air system, the heated cooling water is returned to the engine cooling system. Thus, the target valve comprises at least two calibers.
In some embodiments, the target valve comprises three calibers, step 202 comprising: under the condition that the health state grade is smaller than a preset grade, the controller controls the first caliber and the second caliber in a target valve in the target vehicle to be opened, and the third caliber to be closed, so that cooling water in the engine cooling system flows to a water pump in the warm air system; step 203, including: the controller controls the second caliber to be closed, controls the water pump to pump the cooling water to a heater in the warm air system, controls the heater to heat the cooling water, controls the third caliber to be opened and returns the heated cooling water to the engine cooling system.
It should be appreciated that the target valve in the above scenario, which includes three calibers, may be considered a three-way valve. It should also be appreciated that the controller controls the total bore closure in the target valve after returning heated cooling water to the engine cooling system.
Fig. 3 is a schematic diagram of a frame for heating cooling water according to an embodiment of the present application.
Illustratively, the process of heating the cooling water is described as the target valve including three apertures.
Specifically, as shown in fig. 3, in response to a start instruction of an engine in a target vehicle, a controller determines a health status level of the engine. And under the condition that the health state level is smaller than a preset level, the controller controls the first caliber 1 and the second caliber 2 in the target valve in the target vehicle to be opened, and the third caliber 3 to be closed, so that cooling water in the engine cooling system of the target vehicle flows to the water pump in the warm air system of the target vehicle. The controller controls the second caliber 2 to be closed, controls the water pump to pump the cooling water to a heater in the warm air system, controls the heater to heat the cooling water, controls the third caliber 3 to be opened and returns the heated cooling water to the engine cooling system through the third caliber 3 and the first caliber 1. The controller then controls all three calibers in the target valve to close.
In some embodiments, the target valve comprises two calibers, step 202 comprising: under the condition that the health state grade is smaller than a preset grade, the controller controls the first caliber and the second caliber in a target valve in the target vehicle to be opened so that cooling water in the engine cooling system flows to a water pump in the warm air system; step 203, including: the controller controls the second caliber to be closed, controls the water pump to pump the cooling water to a heater in the warm air system, controls the heater to heat the cooling water, and returns the heated cooling water to the engine cooling system through a reference valve of the engine cooling system.
It should be appreciated that the target valve in the above scenario, which includes two calibers, may be considered a two-way valve.
Fig. 4 is a schematic diagram of another frame for heating cooling water according to an embodiment of the present application.
Illustratively, the process of heating the cooling water is described as the target valve including two apertures.
Specifically, as shown in fig. 4, in response to a start instruction of an engine in a target vehicle, a controller determines a health status level of the engine. And under the condition that the health state level is smaller than a preset level, the controller controls the first caliber 1 and the second caliber 2 in the target valve in the target vehicle to be opened so that cooling water in the engine cooling system of the target vehicle flows to the water pump in the warm air system of the target vehicle. The controller controls the second caliber 2 to be closed, controls the water pump to pump the cooling water to the heater in the warm air system, controls the heater to heat the cooling water, and returns the heated cooling water to the engine cooling system through the reference valve 3 of the engine cooling system.
In some embodiments, the heater in step 203 is a water-warmed PTC (Positive Temperature Coefficient) heater or an air-warmed PTC heater.
In some embodiments, the controller controls the heater to heat the cooling water and then return the heated cooling water to the engine cooling system, comprising: and after the controller controls the heater to heat the cooling water, the heated cooling water is returned to the engine cooling system through the water pump.
In a possible implementation manner, the controller controls the heater to heat the cooling water, including: the controller determines a target power of the heater for heating the cooling water based on a temperature of the cooling water before heating and a target temperature at which the cooling water should be heated; the controller controls the heater to heat the cooling water at a target power.
It is understood that in the process of heating the cooling water by the heater, the heated cooling water is cooled down by the influence of the heat radiation phenomenon with an increase in the heating period. Therefore, after the cooling water is heated for a certain time, the above-described scheme may be re-adopted to correct the target power, and then the heater is controlled to heat the cooling water with the corrected power. Specifically, the method 200 further includes: after heating the cooling water for a preset time with target power, the controller obtains the current temperature of the cooling water; the controller determines a corrected power of the heater to heat the cooling water based on the current temperature and the target temperature; the controller adjusts the target power to the corrected power to control the heater to continue heating the cooling water with the corrected power. Of course, after the cooling water is heated for a preset time with the correction power, the correction power may be further adjusted based on the above-described scheme until the cooling water temperature approaches the target temperature indefinitely. It should also be appreciated that the above process can be considered a PID (pro-port INTEGRAL DERIVATIVE) control process.
In the above-described technical solution, before the cooling water is heated, the cooling water has an initial temperature (temperature of the cooling water before heating) and a target temperature to be heated. And the heater is operated at a certain power, the target power of the heater can be determined based on the temperature of the cooling water before heating and the target temperature. In this way, when the heater is operated at the target power, the temperature of the cooling water can be heated to the target temperature relatively quickly.
In some embodiments, the controller determines a target power for the heater to heat the cooling water based on a temperature of the cooling water before heating and a target temperature at which the cooling water should be heated, comprising: the controller determines the temperature difference between the target temperature and the temperature of the cooling water before heating as the target temperature difference to be lifted by the heater on the cooling water; the controller compares the target temperature difference with a plurality of sample temperature differences; the controller determines a sample target temperature difference from the plurality of sample temperature differences that matches the target temperature difference; the controller determines the sample power corresponding to the sample target temperature difference as the target power.
In a possible implementation manner, the controller controls the heater to heat the cooling water, including: the controller obtains the current residual electric quantity of the target vehicle; under the condition that the current residual electric quantity is smaller than the preset electric quantity, the controller corrects the target power and the target temperature based on the current residual electric quantity; the controller controls the heater to heat the cooling water to the corrected temperature at the corrected power.
It should be understood that the "current remaining capacity of the target vehicle" in the above-described aspect refers to the battery capacity of the power battery currently remaining in the target vehicle.
In the above technical solution, when the target vehicle is a hybrid vehicle and the current remaining power of the target vehicle is low, the target vehicle needs the engine to provide a power source for the target vehicle. And when the target vehicle is a hybrid vehicle and the current residual capacity of the target vehicle is high, the target vehicle can provide a power source for the target vehicle through the engine and the power battery. Therefore, when the remaining power is low, the target vehicle needs the engine to provide more power than when the remaining power is high. Therefore, the method corrects the target power and the target temperature based on the lower residual electric quantity, and controls the heater to heat the cooling water to the corrected temperature with the corrected power so as to enable the engine to reach the optimal health condition and provide a power source for the target vehicle.
In some embodiments, the remaining power corresponding to the target power and the target temperature is a target remaining power, the target remaining power is greater than the preset power, and the controller corrects the target power and the target temperature based on the current remaining power, including: the controller determines an electric quantity difference between the target residual electric quantity and the current residual electric quantity; the controller determines the ratio between the electric quantity difference and the target residual electric quantity as the reduction amplitude of the residual electric quantity; the controller determines the product of the reduction amplitude and the target power and the target temperature as a power variation and a temperature variation; the controller determines the sum of the target power and the power variation as corrected power; the controller determines the sum of the target temperature and the temperature variation amount as the corrected temperature.
It should be understood that, for the above scheme, the target power and the target temperature correspond to a target remaining power, the target remaining power is greater than the preset power, and the target vehicle requires the engine to provide more power when the remaining power is low. Therefore, in the case where the target vehicle is in the current remaining amount of electricity, the controller adds the amount of power change on the basis of the target power to obtain a larger power (corrected power), and adds the amount of temperature change on the basis of the target temperature to obtain a larger temperature (corrected temperature). The controller may then control the heater to heat the cooling water to the modified temperature at the modified power. In this way, after starting the engine, the engine may be caused to provide more power to the target vehicle.
Fig. 5 is a schematic diagram of a frame for heating cooling water by means of a warm air system according to an embodiment of the present application.
Illustratively, as shown in fig. 5, a water pump and a heater are added to the system of fig. 1. Specifically, the water pump pumps cooling water in the engine cooling system from the target valve to a heater in the warm air system, and the heater heats the cooling water and then returns the heated cooling water to the engine cooling system. In this way, the heated cooling water can circulate in the engine cooling system, indirectly raising the engine block temperature.
It should also be appreciated that the circulation path does not pass through the radiator while the heated cooling water circulates within the engine cooling system.
In a possible implementation, the method 200 further includes: the controller obtains the temperature of the heated cooling water; in the case where the temperature of the heated cooling water is greater than or equal to the target temperature, the controller controls the target valve to close and starts the engine.
It should be understood that the "target temperature" in the above-described scheme may be regarded as a target temperature at which the cooling water should be heated.
According to the technical scheme, when the temperature of the cooling water is increased after heating, the engine body temperature of the engine can be shown to be increased, if the engine is started, fuel in the engine can be fully combusted, and even if a piston ring in the engine moves up and down, the fuel cannot be scraped into the oil bottom shell downwards, so that engine oil dilution cannot be caused. Therefore, the method can avoid the dilution of the engine oil, thereby relieving the abrasion condition of the friction pair in the engine.
Fig. 6 is a schematic structural diagram of a device for heating cooling water according to an embodiment of the present application.
Illustratively, as shown in FIG. 6, the apparatus 600 includes:
Determination module 601: for determining a state of health level of an engine in a target vehicle in response to a start command of the engine;
control module 602: for the purpose of:
Under the condition that the health state grade is smaller than a preset grade, a target valve in the target vehicle is controlled to be opened, and the target valve is used for communicating an engine cooling system of the target vehicle with a warm air system of the target vehicle so that cooling water in the engine cooling system flows to a water pump in the warm air system;
The water pump is controlled to pump the cooling water to a heater in the warm air system, and the heater is controlled to heat the cooling water and then return the heated cooling water to the engine cooling system.
Optionally, the determining module 601 is specifically configured to: responding to a starting instruction of the engine, and acquiring a plurality of state parameters of the engine after the engine is started last time; determining whether the plurality of state parameters satisfy a plurality of candidate state conditions; under the condition that the plurality of state parameters meet the plurality of candidate state conditions, increasing a first numerical value by a first preset value to obtain a second numerical value, wherein the first numerical value is the times that the plurality of state parameters meet the plurality of candidate state conditions in the history process; and determining the health state grade based on the magnitude relation between the second numerical value and a second preset value.
Optionally, the determining module is configured to any one of the following: determining whether at least one of a cooling water temperature, an intake air temperature and a rotational speed of the engine in the plurality of state parameters is less than a preset cooling water temperature, an intake air temperature is less than a preset intake air temperature and a rotational speed is less than a preset rotational speed, respectively, satisfying the plurality of candidate state conditions; determining whether an actual fuel consumption of the engine in the plurality of state parameters satisfies that the actual fuel consumption in the plurality of candidate state conditions is less than a preset fuel consumption.
Optionally, the determining module 601 is further configured to: acquiring an actual intake air temperature of the engine; comparing the actual air intake temperature with a plurality of sample air intake temperatures, and determining a target air intake temperature matched with the actual air intake temperature from the plurality of sample air intake temperatures; and determining the fuel consumption corresponding to the target air inlet temperature as the preset fuel consumption.
Optionally, the control module 602 is specifically configured to: determining a target power of the heater for heating the cooling water based on a temperature of the cooling water before heating and a target temperature at which the cooling water should be heated; the heater is controlled to heat the cooling water at a target power.
Optionally, the control module 602 is specifically further configured to: acquiring the current residual electric quantity of the target vehicle; correcting the target power and the target temperature based on the current residual electric quantity under the condition that the current residual electric quantity is smaller than a preset electric quantity; the heater is controlled to heat the cooling water to the corrected temperature at the corrected power.
Optionally, the apparatus 600 further includes: the acquisition module is used for acquiring the temperature of the heated cooling water; the control module is also used for controlling the target valve to be closed and starting the engine under the condition that the temperature of the cooling water after heating is greater than or equal to the target temperature.
Fig. 7 is a schematic structural diagram of a system for heating cooling water according to an embodiment of the present application.
Illustratively, as shown in FIG. 7, the system 700 includes a target valve 701, a water pump 702, a heater 703, and a controller 704, the target valve 701 for communicating an engine cooling system of a target vehicle with the water pump 702, the water pump 702 being connected with the heater 703, the controller 704 being connected with the target valve 701, the water pump 702, the heater 703, and the engine, respectively;
the controller 704 is configured to:
determining a state of health level of an engine in a target vehicle in response to a start command of the engine;
in the case where the health status level is less than a preset level, controlling a target valve 701 in the target vehicle to be opened so that cooling water in the engine cooling system flows to the water pump 702;
The water pump 702 is controlled to pump the cooling water to the heater 703, and the heater 703 is controlled to heat the cooling water and then return the heated cooling water to the engine cooling system.
Fig. 8 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
Illustratively, as shown in FIG. 8, the vehicle 800 includes: a memory 801 and a processor 802, wherein the memory 801 stores executable program code 803, and the processor 802 is configured to call and execute the executable program code 803 to perform a method of heating cooling water.
In addition, the embodiment of the application also protects a device, which can comprise a memory and a processor, wherein executable program codes are stored in the memory, and the processor is used for calling and executing the executable program codes to execute the method for heating the cooling water provided by the embodiment of the application.
In this embodiment, the functional modules of the apparatus may be divided according to the above method example, for example, each functional module may be corresponding to one processing module, or two or more functions may be integrated into one processing module, where the integrated modules may be implemented in a hardware form. It should be noted that, in this embodiment, the division of the modules is schematic, only one logic function is divided, and another division manner may be implemented in actual implementation.
In the case of dividing each functional module by corresponding each function, the apparatus may further include a determining module, a controlling module, an acquiring module, and the like. It should be noted that, all relevant content related to the above method embodiments may be cited to the functional descriptions of the corresponding functional modules, which are not described herein.
It should be understood that the apparatus provided in this embodiment is used to perform the above-described method of heating cooling water, and thus the same effects as those of the above-described implementation method can be achieved.
In case of an integrated unit, the apparatus may comprise a processing module, a memory module. Wherein, when the device is applied to a vehicle, the processing module can be used for controlling and managing the action of the vehicle. The memory module may be used to support the vehicle in executing executable program code, etc.
Wherein the processing module may be a processor or controller that may implement or execute the various illustrative logical blocks, modules, and circuits described in connection with the present disclosure. A processor may also be a combination of computing functions, including for example one or more microprocessors, digital Signal Processing (DSP) and microprocessor combinations, etc., and a memory module may be a memory.
In addition, the device provided by the embodiment of the application can be a chip, a component or a module, wherein the chip can comprise a processor and a memory which are connected; the memory is used for storing instructions, and when the processor calls and executes the instructions, the chip can be made to execute the method for heating the cooling water provided by the embodiment.
The present embodiment also provides a computer-readable storage medium having stored therein executable program code which, when executed on a computer, causes the computer to perform the above-described related method steps to implement a method of heating cooling water provided by the above-described embodiments.
The present embodiment also provides a computer program product which, when run on a computer, causes the computer to perform the above-described related steps to implement a method of heating cooling water provided by the above-described embodiments.
The apparatus, the computer readable storage medium, the computer program product, or the chip provided in this embodiment are used to execute the corresponding method provided above, and therefore, the advantages achieved by the apparatus, the computer readable storage medium, the computer program product, or the chip can refer to the advantages of the corresponding method provided above, which are not described herein.
It will be appreciated by those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to perform all or part of the functions described above.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another apparatus, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (10)
1. A method of heating cooling water, the method comprising:
determining a health status level of an engine in a target vehicle in response to a start command of the engine;
when the health state level is smaller than a preset level, controlling a target valve in the target vehicle to be opened, wherein the target valve is used for communicating an engine cooling system of the target vehicle with a warm air system of the target vehicle so as to enable cooling water in the engine cooling system to flow to a water pump in the warm air system;
And controlling the water pump to pump the cooling water to a heater in the warm air system, and controlling the heater to heat the cooling water and then returning the heated cooling water to the engine cooling system.
2. The method of claim 1, wherein the determining a state of health level of an engine in a target vehicle in response to a start command of the engine comprises:
responding to a starting instruction of the engine, and acquiring a plurality of state parameters of the engine after the engine is started last time;
determining whether the plurality of state parameters satisfy a plurality of candidate state conditions;
under the condition that the plurality of state parameters meet the plurality of candidate state conditions, increasing a first numerical value by a first preset value to obtain a second numerical value, wherein the first numerical value is the number of times that the plurality of state parameters meet the plurality of candidate state conditions in a history process;
and determining the health state grade based on the magnitude relation between the second numerical value and a second preset value.
3. The method of claim 2, wherein the determining whether the plurality of state parameters satisfy a plurality of candidate state conditions comprises any one of:
Determining whether at least one of a cooling water temperature, an intake air temperature and a rotational speed of the engine in the plurality of state parameters is less than a preset cooling water temperature, an intake air temperature is less than a preset intake air temperature and a rotational speed is less than a preset rotational speed, respectively, in the plurality of candidate state conditions;
determining whether an actual fuel consumption of the engine in the plurality of state parameters satisfies that the actual fuel consumption in the plurality of candidate state conditions is less than a preset fuel consumption.
4. A method according to claim 3, wherein the method of determining the preset fuel consumption comprises:
Acquiring the actual air inlet temperature of the engine;
comparing the actual air intake temperature with a plurality of sample air intake temperatures, and determining a target air intake temperature matched with the actual air intake temperature from the plurality of sample air intake temperatures;
And determining the fuel consumption corresponding to the target air inlet temperature as the preset fuel consumption.
5. The method of any one of claims 1-4, wherein the controlling the heater to heat the cooling water comprises:
determining a target power of the heater for heating the cooling water based on a temperature of the cooling water before heating and a target temperature at which the cooling water should be heated;
And controlling the heater to heat the cooling water at a target power.
6. The method of claim 5, wherein said controlling said heater to heat said cooling water comprises:
Acquiring the current residual electric quantity of the target vehicle;
Correcting the target power and the target temperature based on the current residual electric quantity under the condition that the current residual electric quantity is smaller than a preset electric quantity;
and controlling the heater to heat the cooling water to the corrected temperature at the corrected power.
7. The method according to any one of claims 1-4, further comprising:
Acquiring the temperature of the heated cooling water;
And under the condition that the temperature of the cooling water after heating is greater than or equal to the target temperature, controlling the target valve to be closed and starting the engine.
8. An apparatus for heating cooling water, the apparatus comprising:
a determination module for determining a state of health level of an engine in a target vehicle in response to a start command of the engine;
A control module for:
when the health state level is smaller than a preset level, controlling a target valve in the target vehicle to be opened, wherein the target valve is used for communicating an engine cooling system of the target vehicle with a warm air system of the target vehicle so as to enable cooling water in the engine cooling system to flow to a water pump in the warm air system;
And controlling the water pump to pump the cooling water to a heater in the warm air system, and controlling the heater to heat the cooling water and then returning the heated cooling water to the engine cooling system.
9. A system for heating cooling water, wherein the system comprises a target valve, a water pump, a heater and a controller, wherein the target valve is used for communicating an engine cooling system of a target vehicle with the water pump, the water pump is connected with the heater, and the controller is respectively connected with the target valve, the water pump, the heater and the engine;
The controller is used for:
determining a health status level of an engine in a target vehicle in response to a start command of the engine;
controlling a target valve in the target vehicle to be opened under the condition that the health state level is smaller than a preset level so as to enable cooling water in the engine cooling system to flow to the water pump;
And controlling the water pump to pump the cooling water to the heater, and controlling the heater to heat the cooling water and then returning the heated cooling water to the engine cooling system.
10. A vehicle, characterized in that the vehicle comprises:
A memory for storing executable program code;
a processor for calling and running the executable program code from the memory, causing the vehicle to perform the method of any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410332737.7A CN118128677A (en) | 2024-03-22 | 2024-03-22 | Method, device, system, vehicle and storage medium for heating cooling water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410332737.7A CN118128677A (en) | 2024-03-22 | 2024-03-22 | Method, device, system, vehicle and storage medium for heating cooling water |
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| CN118128677A true CN118128677A (en) | 2024-06-04 |
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| CN202410332737.7A Pending CN118128677A (en) | 2024-03-22 | 2024-03-22 | Method, device, system, vehicle and storage medium for heating cooling water |
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