CN110985187B - Cooling system control method, storage medium, and electronic apparatus - Google Patents
Cooling system control method, storage medium, and electronic apparatus Download PDFInfo
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- CN110985187B CN110985187B CN201911073223.XA CN201911073223A CN110985187B CN 110985187 B CN110985187 B CN 110985187B CN 201911073223 A CN201911073223 A CN 201911073223A CN 110985187 B CN110985187 B CN 110985187B
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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
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/026—Thermostatic control
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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
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
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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
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
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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
- F01P2050/00—Applications
- F01P2050/22—Motor-cars
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a cooling system control method, a storage medium and an electronic device, wherein the method comprises the following steps: acquiring running state parameters of a vehicle and the state of an air conditioning system, wherein the running state parameters comprise the vehicle speed, the temperature of engine coolant and the starting temperature of an electronic thermostat; controlling a cooling system of a vehicle according to the operating condition parameter and the air conditioning system state, the cooling system including a variable intake grille and a fan. By implementing the invention, the running state parameters and the air conditioning system state of the vehicle are obtained, the cooling system of the vehicle is controlled according to the running state parameters and the air conditioning system state, and the variable air inlet grille and/or the fan is opened or closed, so that the engine of the vehicle can be rapidly cooled, the opening time of the variable air inlet grille and the running time of the fan are reduced, the vehicle resistance and the power consumption of electric appliances are reduced, and the oil consumption is reduced.
Description
Technical Field
The present invention relates to the field of automotive technologies, and in particular, to a cooling system control method, a storage medium, and an electronic device.
Background
The automobile cooling system is used for timely dissipating part of heat absorbed by heated parts to ensure that an engine works in an optimum temperature state and mainly comprises a water pump, a radiator, a cooling fan, a compensation water tank, a thermostat, a water jacket in an engine body and a cylinder cover, an accessory device (such as a variable air inlet grille) and the like.
Existing automotive cooling systems are mainly classified into two categories:
1) controlling the opening or closing of the auxiliary device by a single air conditioner and the vehicle speed or the cooling water temperature;
2) while controlling the attachment and the cooling fan to be turned on or the cooling fan to be turned on in the attachment off state.
The existing automobile cooling system cannot accurately control the opening operation time of an auxiliary device and a cooling fan, and has high oil consumption.
Disclosure of Invention
The invention aims to provide a cooling system control method, a storage medium and an electronic device, which can reduce the opening time of a variable air inlet grille and the running time of a fan, reduce the resistance of a vehicle and the power consumption of electric appliances and reduce the oil consumption.
The technical scheme of the invention provides a cooling system control method, which is characterized by comprising the following steps:
acquiring running state parameters of a vehicle and the state of an air conditioning system, wherein the running state parameters comprise the vehicle speed, the temperature of engine coolant and the starting temperature of an electronic thermostat;
controlling a cooling system of a vehicle according to the operating condition parameter and the air conditioning system state, the cooling system including a variable intake grille and a fan.
Further, the controlling a cooling system of a vehicle according to the operating state parameter and the state of the air conditioning system specifically includes:
when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a first preset temperature difference value, opening the variable air intake grille;
and when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than or equal to a second preset temperature difference value, closing the variable air inlet grille, wherein the second preset temperature difference value is smaller than the first preset temperature difference value.
Further, when the state of the air conditioning system is an off state, the controlling the cooling system of the vehicle according to the operating state parameter and the state of the air conditioning system specifically includes:
when the vehicle speed is greater than or equal to a first preset vehicle speed, opening the variable air inlet grille;
and when the vehicle speed is less than or equal to a second preset vehicle speed, closing the variable air inlet grille, wherein the second preset vehicle speed is less than the first preset vehicle speed.
Further, when the state of the air conditioning system is an open state, the controlling the cooling system of the vehicle according to the operating state parameter and the state of the air conditioning system specifically includes:
when the vehicle speed is greater than or equal to a third preset vehicle speed, closing the variable air inlet grille, wherein the third preset vehicle speed is less than the second preset vehicle speed;
and when the vehicle speed is less than or equal to a fourth preset vehicle speed, opening the variable air inlet grille, wherein the fourth preset vehicle speed is less than the third preset vehicle speed.
When the vehicle speed is greater than or equal to a first preset vehicle speed, opening the variable air inlet grille, wherein the first preset vehicle speed is greater than a third preset vehicle speed;
and when the vehicle speed is less than or equal to a second preset vehicle speed, closing the variable air inlet grille.
Further, the operating state parameter further includes an air conditioner refrigerant pressure, and when the air conditioning system state is an open state, the method specifically includes the steps of controlling a cooling system of the vehicle according to the operating state parameter and the air conditioning system state:
when the pressure of the air-conditioning refrigerant is greater than or equal to a first preset pressure value, opening the variable air inlet grille;
and when the pressure of the air-conditioning refrigerant is less than or equal to a second preset pressure value, closing the variable air inlet grille, wherein the second preset pressure value is less than the first preset pressure value.
Further, the controlling a cooling system of a vehicle according to the operating state parameter and the state of the air conditioning system specifically includes:
when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than a third preset temperature difference value, the fan is turned off, and the third preset temperature difference value is larger than the first preset temperature difference value;
when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a third preset temperature difference value and smaller than a fourth preset temperature difference value, controlling the fan to operate at a first gear;
and when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to the fourth preset temperature difference, controlling the fan to be located at a second gear to operate, wherein the second gear is greater than the first gear.
Further, the operating state parameter further includes an engine oil temperature, and the controlling of the cooling system of the vehicle according to the operating state parameter and the state of the air conditioning system specifically includes:
when the engine oil temperature is greater than or equal to a preset first engine oil temperature threshold value and is less than a preset second engine oil temperature threshold value, opening the variable air inlet grille and controlling the fan to operate at a first gear;
and when the engine oil temperature is greater than or equal to the second engine oil temperature threshold value, opening the variable air inlet grille and controlling the fan to operate at a second gear, wherein the second gear is greater than the first gear.
Further, the operating state parameter further includes a transmission oil temperature, and the controlling of the cooling system of the vehicle according to the operating state parameter and the state of the air conditioning system specifically includes:
when the gearbox oil temperature is greater than or equal to a preset first gearbox oil temperature threshold value and is less than a preset second gearbox oil temperature threshold value, opening the variable air inlet grille and controlling the fan to operate at a first gear;
and when the oil temperature of the gearbox is greater than or equal to the oil temperature threshold of the second gearbox, opening the variable air inlet grille and controlling the fan to operate at a second gear, wherein the second gear is greater than the first gear.
Further, the operating state parameter further includes a transmission clutch temperature, and the controlling the cooling system of the vehicle according to the operating state parameter and the state of the air conditioning system specifically includes:
when the temperature of the gearbox clutch is greater than or equal to a preset first gearbox clutch temperature threshold and is smaller than a preset second gearbox clutch temperature threshold, opening the variable air inlet grille and controlling the fan to operate at a first gear;
and when the temperature of the gearbox clutch is greater than or equal to the temperature threshold of the second gearbox clutch, opening the variable air inlet grille and controlling the fan to be located at a second gear to operate, wherein the second gear is greater than the first gear.
The technical solution of the present invention also provides a storage medium storing computer instructions for executing all the steps of the cooling system control method as described above when a computer executes the computer instructions.
The technical solution of the present invention also provides an electronic device, including:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the one processor to cause the at least one processor to:
acquiring running state parameters of a vehicle and the state of an air conditioning system, wherein the running state parameters comprise the vehicle speed, the temperature of engine coolant and the starting temperature of an electronic thermostat;
controlling a cooling system of a vehicle according to the operating condition parameter and the air conditioning system state, the cooling system including a variable intake grille and a fan.
After adopting above-mentioned technical scheme, have following beneficial effect: by acquiring the running state parameters and the air conditioning system state of the vehicle, controlling the cooling system of the vehicle according to the running state parameters and the air conditioning system state, and opening or closing the variable air intake grille and/or the fan, the engine of the vehicle can be rapidly cooled, the opening time of the variable air intake grille and the running time of the fan are reduced, the vehicle resistance and the power consumption of electric appliances are reduced, and the oil consumption is reduced.
Drawings
The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:
fig. 1 is a flowchart illustrating a method for controlling a cooling system according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a control method of a cooling system according to a second embodiment of the present invention;
fig. 3 is a flowchart illustrating a control method of a cooling system according to a third embodiment of the present invention;
fig. 4 is a flowchart illustrating a control method of a cooling system according to a fourth embodiment of the present invention;
fig. 5 is a flowchart illustrating a control method of a cooling system according to a fifth embodiment of the present invention;
fig. 6 is a flowchart illustrating a control method of a cooling system according to a sixth embodiment of the present invention;
fig. 7 is a flowchart illustrating a control method of a cooling system according to a seventh embodiment of the present invention;
fig. 8 is a schematic hardware configuration diagram of an electronic device that executes a cooling system control method according to a ninth embodiment of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings.
It is easily understood that according to the technical solution of the present invention, those skilled in the art can substitute various structures and implementation manners without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as limiting or restricting the technical aspects of the present invention.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.
Example one
As shown in fig. 1, fig. 1 is a flowchart of a control method of a cooling system according to an embodiment of the present invention, including:
step S101: acquiring running state parameters of a vehicle and the state of an air conditioning system;
step S102: and controlling the cooling system of the vehicle according to the running state parameters and the state of the air conditioning system.
Specifically, the method comprises the following steps:
a Body Control Module (BCM) executes step S101 to obtain an operating state parameter of the vehicle and an air conditioning system state in real time, where the operating state parameter includes a vehicle speed, an engine coolant temperature, and an electronic thermostat opening temperature, and the air conditioning system state includes a closed state and an open state, and then executes step S102 to Control a cooling system of the vehicle according to the operating state parameter and the air conditioning system state, and open or close the variable intake grill and/or the fan, so that an engine of the vehicle can be rapidly cooled, the opening time of the variable intake grill and the operating time of the fan are reduced, vehicle resistance is reduced, and fuel consumption is reduced.
According to the cooling system control method provided by the invention, the running state parameters and the air conditioning system state of the vehicle are obtained, the cooling system of the vehicle is controlled according to the running state parameters and the air conditioning system state, and the variable air inlet grille and/or the fan is opened or closed, so that the engine of the vehicle can be rapidly cooled, the opening time of the variable air inlet grille and the running time of the fan are reduced, the vehicle resistance and the power consumption of electric appliances are reduced, and the oil consumption is reduced.
Example two
As shown in fig. 2, fig. 2 is a flowchart of a control method of a cooling system according to a second embodiment of the present invention, including:
step S201: acquiring running state parameters of a vehicle and the state of an air conditioning system;
step S202: when the difference value between the temperature of the engine coolant and the opening temperature of the electronic thermostat is larger than or equal to a first preset temperature difference value, opening the variable air inlet grille;
step S203: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than or equal to a second preset temperature difference, closing the variable air inlet grille;
step S204: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than a third preset temperature difference, the fan is turned off;
step S205: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a third preset temperature difference value and smaller than a fourth preset temperature difference value, controlling the fan to operate at a first gear;
step S206: and when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a fourth preset temperature difference value, controlling the fan to operate at a second gear.
Specifically, the method comprises the following steps:
after the BCM executes step S201 to obtain the operating state parameters of the vehicle and the state of the air conditioning system, the operating state parameters include the temperature of the engine coolant and the opening temperature of the electronic thermostat, calculate the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat, and when the difference Δ t between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a first preset temperature difference t1When it is, step S202 is executed to open the variable intake grill; when delta t is less than or equal to a second preset temperature difference value t2When the variable intake grill is closed, step S203 is executed; meanwhile, when delta t is less than a third preset temperature difference value t3If so, executing step S204 to turn off the fan; when t is3Delta t is less than or equal to delta t and a fourth preset temperature difference value t4If so, executing step S205 to control the fan to operate at the first gear; when Δ t ≧ t4Then, step S206 is executed to control the fan to operate in a second gear, where the second gear is greater than the first gear, and preferably the first gear is a low speed, and the second gear is a high speed.
t1、t2、t3And t4Preset in BCM, the value can be set according to user's requirement1Preferably 2 ℃ t2Preferably 0 ℃ t3Preferably 4 ℃ t4Preferably 6 deg.c.
The sequence of steps S202-S203 and steps S204-S206 can be interchanged, and at any time, the BCM will execute the corresponding steps to control the opening or closing of the variable intake grille and the fan as long as it determines that Δ t matches the corresponding preset temperature difference value.
According to the cooling system control method provided by the invention, the running state parameters of the vehicle and the state of the air conditioning system are obtained, the difference value between the temperature of the engine coolant and the opening temperature of the electronic thermostat is compared with the preset temperature difference value, the opening or closing of the variable air inlet grille and/or the fan is controlled, and the cooling requirement of the engine can be accurately judged, so that the engine of the vehicle can be cooled more quickly, the opening time of the variable air inlet grille and the running time of the fan are further reduced, the vehicle resistance and the power consumption of electric appliance parts are reduced, and the oil consumption is reduced.
EXAMPLE III
As shown in fig. 3, fig. 3 is a flowchart of a control method of a cooling system according to a third embodiment of the present invention, including:
step S301: acquiring running state parameters of a vehicle and the state of an air conditioning system;
step S302: judging whether the air conditioning system is closed or not;
step S303: when the vehicle speed is greater than or equal to a first preset vehicle speed, opening the variable air inlet grille;
step S304: when the vehicle speed is less than or equal to a second preset vehicle speed, closing the variable air inlet grille;
step S305: when the vehicle speed is greater than or equal to a third preset vehicle speed, closing the variable air inlet grille;
step S306: when the vehicle speed is less than or equal to a fourth preset vehicle speed, opening the variable air inlet grille;
step S307: when the vehicle speed is greater than or equal to a first preset vehicle speed, opening the variable air inlet grille;
step S308: when the vehicle speed is less than or equal to a second preset vehicle speed, closing the variable air inlet grille;
step S309: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than a third preset temperature difference, the fan is turned off;
step S310: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a third preset temperature difference value and smaller than a fourth preset temperature difference value, controlling the fan to operate at a first gear;
step S311: and when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a fourth preset temperature difference value, controlling the fan to operate at a second gear.
Specifically, the method comprises the following steps:
after the BCM executes the step S301 to acquire the running state parameters of the vehicle and the state of the air conditioning system, the running state parameters comprise the vehicle speed, the temperature of engine coolant and the starting temperature of an electronic thermostat, the state of the air conditioning system comprises an open state and a closed state, the step S302 is executed to judge whether the air conditioning system is closed, if yes, the steps S303-S304 are executed, and when the vehicle speed v is larger than or equal to a first preset vehicle speed v1When the variable air inlet grille is opened, and when v is less than or equal to a second preset vehicle speed v2When so, closing the variable intake grille; otherwise, executing the steps S305-S308, and when v is larger than or equal to the third preset vehicle speed v3When the vehicle speed is less than or equal to the fourth preset vehicle speed v, the variable air inlet grille is closed4When the variable air inlet grille is opened, when v is more than or equal to v1When v is less than or equal to v, the variable air intake grille is opened2When so, closing the variable intake grille; and, steps S309-S311 are performed.
v1、v2、v3And v4The numerical value of the BCM is preset in the BCM and can be set according to the requirements of users.
The sequence of steps S302-S308 and steps S309-S311 can be interchanged, and at any time, the BCM only needs to execute corresponding steps to control the opening or closing of the variable air intake grille and the fan when the BCM judges that the delta t and the vehicle speed v are consistent with the corresponding preset temperature difference value and the preset vehicle speed value.
According to the control method of the cooling system, the running state parameters of the vehicle and the state of the air conditioning system are obtained, the difference value between the vehicle speed, the temperature of the engine coolant and the opening temperature of the electronic thermostat is compared with the preset vehicle speed and the preset temperature difference value, the opening or closing of the variable air inlet grille and/or the fan is controlled, the cooling requirement of the engine can be accurately judged, the engine of the vehicle can be cooled more quickly, the opening time of the variable air inlet grille and the running time of the fan are further reduced, the vehicle resistance and the power consumption of electric appliances are reduced, and the oil consumption is reduced.
Example four
As shown in fig. 4, fig. 4 is a flowchart of a control method of a cooling system according to a fourth embodiment of the present invention, including:
step S401: acquiring running state parameters of a vehicle and the state of an air conditioning system;
step S402: when the air conditioning system is in an open state and the pressure of an air conditioning refrigerant is greater than or equal to a first preset pressure value, opening the variable air inlet grille;
step S403: when the pressure of the air-conditioning refrigerant is less than or equal to a second preset pressure value, closing the variable air inlet grille;
step S404: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than a third preset temperature difference, the fan is turned off;
step S405: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a third preset temperature difference value and smaller than a fourth preset temperature difference value, controlling the fan to operate at a first gear;
step S406: and when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a fourth preset temperature difference value, controlling the fan to operate at a second gear.
Specifically, the method comprises the following steps:
after the BCM executes the step S401 to obtain the running state parameters of the vehicle and the state of the air conditioning system, the running state parameters include the air conditioning refrigerant pressure, and when the state of the air conditioning system is the open state, the air conditioning refrigerant pressure p is greater than or equal to a first preset pressure value p1Then, step S402 is executed to open the variable intake grill until p is less than or equal to a second preset pressure value p2When the variable intake grill is closed, step S403 is executed; at the same time, steps S404-S406 are performed.
p1And p2Preset in BCM, the value can be set according to user's requirement, in the embodiment of the invention, p1Greater than p2。
The sequence of steps S402-S403 and steps S404-S406 may be interchanged, and at any time, if the BCM only judges that p and Δ t are consistent with the corresponding preset pressure value and temperature difference value, the corresponding steps will be executed to control the opening or closing of the variable intake grille and the fan.
According to the cooling system control method provided by the invention, the running state parameters of the vehicle and the state of the air conditioning system are obtained, and the difference values of the air conditioning refrigerant pressure, the engine coolant temperature and the opening temperature of the electronic thermostat are compared with the preset pressure value and the preset temperature difference value, so that the opening or closing of the variable air inlet grille and/or the fan is controlled, the cooling requirement of the engine can be accurately judged, the engine of the vehicle can be cooled more quickly, the opening time of the variable air inlet grille and the running time of the fan are further reduced, the vehicle resistance and the power consumption of electric appliances are reduced, and the oil consumption is reduced.
EXAMPLE five
As shown in fig. 5, fig. 5 is a flowchart of a control method of a cooling system according to a fifth embodiment of the present invention, including:
step S501: acquiring running state parameters of a vehicle and the state of an air conditioning system;
step S502: when the engine oil temperature is greater than or equal to a preset first engine oil temperature threshold value and is less than a preset second engine oil temperature threshold value, opening the variable air inlet grille and controlling the fan to operate at a first gear;
step S503: when the engine oil temperature is greater than or equal to a second engine oil temperature threshold value, opening the variable air inlet grille and controlling the fan to operate at a second gear;
step S504: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than a third preset temperature difference, the fan is turned off;
step S505: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a third preset temperature difference value and smaller than a fourth preset temperature difference value, controlling the fan to operate at a first gear;
step S506: and when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a fourth preset temperature difference value, controlling the fan to operate at a second gear.
Specifically, the method comprises the following steps:
after the BCM executes the step S501 to obtain the running state parameters of the vehicle and the state of the air conditioning system, the running state parameters comprise engine oil temperature, and when the engine oil temperature is greater than or equal to a preset first engine oil temperature threshold value and is less than a preset second engine oil temperature threshold value, the step S502 is executed to open the variable air intake grille and control the fan to run at a first gear; when the engine oil temperature is greater than or equal to the second engine oil temperature threshold value, executing a step S503 to open the variable air inlet grille and controlling the fan to operate at a second gear; alternatively, steps S504-S506 are executed when the difference between the engine coolant temperature and the electronic thermostat opening temperature satisfies the conditions of steps S504-S506.
The first engine oil temperature threshold and the second engine oil temperature threshold are preset in the BCM, and the numerical values of the first engine oil temperature threshold and the second engine oil temperature threshold can be set according to user requirements.
When the fan is controlled, the BCM simultaneously judges the engine oil temperature and delta t, and when the BCM preferentially judges the engine oil temperature and a preset engine oil temperature threshold (a first engine oil temperature threshold and a second engine oil temperature threshold)
Second engine oil temperature threshold), preferentially executing the steps S502-S503 to control the fan to operate in the first gear or the second gear; when the BCM preferentially determines that the Δ t matches the preset temperature difference value (the third preset temperature difference value and the fourth preset temperature difference value), the step S504 to the step S506 are preferentially executed to control the fan to stop, operate in the first gear, or operate in the second gear.
According to the cooling system control method provided by the invention, the running state parameters of the vehicle and the state of the air conditioning system are obtained, the difference values of the engine oil temperature, the engine coolant temperature and the opening temperature of the electronic thermostat are compared with the preset engine oil temperature threshold value and the preset temperature difference value, the opening or closing of the variable air inlet grille and/or the fan is controlled, and the cooling requirement of the engine can be accurately judged, so that the engine of the vehicle can be cooled more quickly, the opening time of the variable air inlet grille and the running time of the fan are further reduced, the vehicle resistance and the power consumption of electric appliance parts are reduced, and the oil consumption is reduced.
EXAMPLE six
As shown in fig. 6, fig. 6 is a flowchart of a control method of a cooling system according to a sixth embodiment of the present invention, including:
step S601: acquiring running state parameters of a vehicle and the state of an air conditioning system;
step S602: when the oil temperature of the gearbox is greater than or equal to a preset first gearbox oil temperature threshold value and is less than a preset second gearbox oil temperature threshold value, opening the variable air inlet grille and controlling the fan to operate at a first gear;
step S603: when the oil temperature of the gearbox is greater than or equal to the oil temperature threshold value of the second gearbox, the variable air inlet grille is opened, and the fan is controlled to operate at a second gear;
step S604: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than a third preset temperature difference, the fan is turned off;
step S605: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a third preset temperature difference value and smaller than a fourth preset temperature difference value, controlling the fan to operate at a first gear;
step S606: and when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a fourth preset temperature difference value, controlling the fan to operate at a second gear.
Specifically, the method comprises the following steps:
after the BCM executes the step S601 to obtain the running state parameters of the vehicle and the state of the air conditioning system, the running state parameters comprise the oil temperature of the gearbox, and when the oil temperature of the gearbox is greater than or equal to a preset first gearbox oil temperature threshold value and smaller than a preset second gearbox oil temperature threshold value, the step S602 is executed to open the variable air inlet grille and control the fan to run at a first gear; when the oil temperature of the gearbox is greater than or equal to the oil temperature threshold value of the second gearbox, executing a step S603 to open the variable air inlet grille and controlling the fan to operate at a second gear; alternatively, when the difference between the engine coolant temperature and the electronic thermostat opening temperature satisfies the conditions of steps S604-S606, steps S604-S606 are executed.
The first gearbox oil temperature threshold and the second gearbox oil temperature threshold are preset in the BCM, and the numerical values can be set according to user requirements.
When the fan is controlled, the BCM simultaneously judges the oil temperature of the gearbox and delta t, and when the BCM preferentially judges the oil temperature of the gearbox and a preset oil temperature threshold of the gearbox (a first oil temperature threshold of the gearbox and a preset oil temperature threshold of the gearbox)
When the oil temperature threshold value of the second gearbox is consistent), preferentially executing the steps S602-S603 to control the fan to operate at the first gear or the second gear; when the BCM preferentially determines that the Δ t matches the preset temperature difference value (the third preset temperature difference value and the fourth preset temperature difference value), the step S604-S606 is preferentially executed to control the fan to stop, operate in the first gear, or operate in the second gear.
According to the cooling system control method provided by the invention, the running state parameters of the vehicle and the state of the air conditioning system are obtained, the difference values of the gearbox oil temperature, the engine coolant temperature and the opening temperature of the electronic thermostat are compared with the preset gearbox oil temperature threshold value and the preset temperature difference value, the opening or closing of the variable air inlet grille and/or the fan is controlled, and the cooling requirement of the engine can be accurately judged, so that the engine of the vehicle can be cooled more quickly, the opening time of the variable air inlet grille and the running time of the fan are further reduced, the vehicle resistance and the power consumption of electric appliance parts are reduced, and the oil consumption is reduced.
EXAMPLE seven
As shown in fig. 7, fig. 7 is a flowchart of a control method of a cooling system according to a seventh embodiment of the present invention, including:
step S701: acquiring running state parameters of a vehicle and the state of an air conditioning system;
step S702: when the temperature of the clutch of the gearbox is greater than or equal to a preset first gearbox clutch temperature threshold value and is smaller than a preset second gearbox clutch temperature threshold value, opening the variable air inlet grille and controlling the fan to operate at a first gear;
step S703: when the temperature of the gearbox clutch is greater than or equal to the temperature threshold of the second gearbox clutch, opening the variable air inlet grille and controlling the fan to operate at a second gear;
step S704: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than a third preset temperature difference, the fan is turned off;
step S705: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a third preset temperature difference value and smaller than a fourth preset temperature difference value, controlling the fan to operate at a first gear;
step S706: and when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a fourth preset temperature difference value, controlling the fan to operate at a second gear.
Specifically, the method comprises the following steps:
after the BCM executes the step S701 to acquire the running state parameters of the vehicle and the state of the air conditioning system, the running state parameters comprise the temperature of a clutch of a gearbox, and when the temperature of the clutch of the gearbox is greater than or equal to a preset first gearbox clutch temperature threshold value and is smaller than a preset second gearbox clutch temperature threshold value, the step S702 is executed to open a variable air inlet grille and control a fan to run at a first gear; when the temperature of the gearbox clutch is greater than or equal to the temperature threshold of the second gearbox clutch, executing step S703 to open the variable air inlet grille and control the fan to operate at a second gear; alternatively, steps S704-S706 are executed when the difference between the engine coolant temperature and the electronic thermostat opening temperature satisfies the conditions of steps S704-S706.
The first gearbox clutch temperature threshold and the second gearbox clutch temperature threshold are preset in the BCM, and the values of the first gearbox clutch temperature threshold and the second gearbox clutch temperature threshold can be set according to user requirements.
When the BCM preferentially judges that the temperature of the gearbox clutch is consistent with a preset gearbox clutch temperature threshold (a first gearbox clutch temperature threshold and a second gearbox clutch temperature threshold), preferentially executing the steps S702-S703 to control the fan to operate in a first gear or a second gear; when the BCM preferentially determines that the Δ t matches the preset temperature difference value (the third preset temperature difference value and the fourth preset temperature difference value), the steps S704-S706 are preferentially executed to control the fan to stop, operate in the first gear, or operate in the second gear.
According to the cooling system control method provided by the invention, the running state parameters of the vehicle and the state of the air conditioning system are obtained, the difference value between the temperature of the clutch of the gearbox, the temperature of the cooling liquid of the engine and the opening temperature of the electronic thermostat is compared with the preset temperature threshold value and the temperature difference value of the clutch of the gearbox, the opening or closing of the variable air inlet grille and/or the fan is controlled, the cooling requirement of the engine can be accurately judged, the engine of the vehicle can be cooled more quickly, the opening time of the variable air inlet grille and the running time of the fan are further reduced, the resistance of the vehicle and the power consumption of electric appliances are reduced, and the oil consumption is reduced.
Example eight
An eighth embodiment of the present invention provides a storage medium storing computer instructions for performing all the steps of the cooling system control method as described above when the computer executes the computer instructions.
Example nine
As shown in fig. 8, fig. 8 is a schematic hardware structure diagram of an electronic device for executing a cooling system control method according to a ninth embodiment of the present invention, which mainly includes: at least one processor 81; and a memory 82 communicatively coupled to the at least one processor 81; wherein the memory 82 stores instructions executable by the at least one processor 81 to enable the at least one processor 81 to perform the method flows shown in fig. 1-7.
The electronic device performing the cooling system control method may further include: an input device 83 and an output device 84.
The processor 81, the memory 82, the input device 83, and the output device 84 may be connected by a bus or other means, and fig. 8 illustrates an example of a connection by a bus.
The memory 82, which is a non-volatile computer-readable storage medium, may be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as program instructions/modules corresponding to the cooling system control method in the embodiments of the present application, for example, the method flows shown in fig. 1-7. The processor 81 executes various functional applications and data processing by executing nonvolatile software programs, instructions, and modules stored in the memory 82, that is, implements the cooling system control method in the above-described embodiment.
The memory 82 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the use of the test browser-compatible device, and the like. Further, the memory 82 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the memory 82 may optionally include a memory located remotely from the processor 81, and these remote memories may be connected via a network to a device that performs the cooling system control method. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 83 may receive input user clicks and generate signal inputs related to user settings and functional control of the test browser compatible device. The output device 84 may include a display device such as a display screen.
The cooling system control method of any of the method embodiments described above is performed when the one or more modules are stored in the memory 82 and executed by the one or more processors 81.
The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the methods provided in the embodiments of the present application.
The electronic device of embodiments of the present invention exists in a variety of forms, including but not limited to:
(1) an Electronic Control Unit (ECU) is also called a "traveling computer" or a "vehicle-mounted computer". The digital signal processor mainly comprises a microprocessor (CPU), a memory (ROM and RAM), an input/output interface (I/O), an analog-to-digital converter (A/D), a shaping circuit, a driving circuit and other large-scale integrated circuits.
(2) A mobile communication device: such devices are characterized by mobile communications capabilities and are primarily targeted at providing voice, data communications. Such terminals include: smart phones (e.g., iphones), multimedia phones, functional phones, and low-end phones, among others.
(3) Ultra mobile personal computer device: the equipment belongs to the category of personal computers, has calculation and processing functions and generally has the characteristic of mobile internet access. Such terminals include: PDA, MID, and UMPC devices, etc.
(4) A portable entertainment device: such devices can display and play multimedia content. This type of device comprises: audio, video players (e.g., ipods), handheld game consoles, electronic books, and smart toys and portable car navigation devices.
(5) A server: the device for providing the computing service comprises a processor, a hard disk, a memory, a system bus and the like, and the server is similar to a general computer architecture, but has higher requirements on processing capacity, stability, reliability, safety, expandability, manageability and the like because of the need of providing high-reliability service.
(6) And other electronic devices with data interaction functions.
Furthermore, the logic instructions in the memory 82 may be implemented in software functional units and stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a mobile terminal (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by software plus a necessary general hardware server, and of course, can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, and not to limit the same; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A cooling system control method, comprising:
acquiring running state parameters of a vehicle and an air conditioning system state, wherein the running state parameters comprise vehicle speed, engine coolant temperature and electronic thermostat starting temperature, and the air conditioning system state comprises a closing state and an opening state;
controlling a cooling system of a vehicle according to the operating condition parameter and the air conditioning system state, the cooling system including a variable intake grill and a fan: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a first preset temperature difference value, opening the variable air intake grille;
when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than or equal to a second preset temperature difference value, closing the variable air inlet grille, wherein the second preset temperature difference value is smaller than the first preset temperature difference value;
when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than a third preset temperature difference value, the fan is turned off, and the third preset temperature difference value is larger than the first preset temperature difference value;
when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a third preset temperature difference value and smaller than a fourth preset temperature difference value, controlling the fan to operate at a first gear;
and when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to the fourth preset temperature difference, controlling the fan to be located at a second gear to operate, wherein the second gear is greater than the first gear.
2. The method for controlling a cooling system according to claim 1, wherein when the state of the air conditioning system is an off state, the controlling the cooling system of the vehicle according to the operating state parameter and the state of the air conditioning system specifically comprises:
when the vehicle speed is greater than or equal to a first preset vehicle speed, opening the variable air inlet grille;
and when the vehicle speed is less than or equal to a second preset vehicle speed, closing the variable air inlet grille, wherein the second preset vehicle speed is less than the first preset vehicle speed.
3. The method for controlling a cooling system according to claim 2, wherein when the state of the air conditioning system is an open state, the controlling the cooling system of the vehicle according to the operating state parameter and the state of the air conditioning system specifically comprises:
when the vehicle speed is greater than or equal to a third preset vehicle speed, closing the variable air inlet grille, wherein the third preset vehicle speed is less than the second preset vehicle speed;
when the vehicle speed is less than or equal to a fourth preset vehicle speed, opening the variable air inlet grille, wherein the fourth preset vehicle speed is less than the third preset vehicle speed;
when the vehicle speed is greater than or equal to the first preset vehicle speed, opening the variable air inlet grille;
and when the vehicle speed is less than or equal to the second preset vehicle speed, closing the variable air inlet grille.
4. The method for controlling a cooling system according to claim 1, wherein the operating state parameter further includes an air conditioning refrigerant pressure, and when the air conditioning system state is an open state, the controlling the cooling system of the vehicle according to the operating state parameter and the air conditioning system state specifically includes:
when the pressure of the air-conditioning refrigerant is greater than or equal to a first preset pressure value, opening the variable air inlet grille;
and when the pressure of the air-conditioning refrigerant is less than or equal to a second preset pressure value, closing the variable air inlet grille, wherein the second preset pressure value is less than the first preset pressure value.
5. The cooling system control method according to claim 1, wherein the operating state parameter further includes an engine oil temperature, and the controlling of the cooling system of the vehicle according to the operating state parameter and the air conditioning system state specifically includes:
when the engine oil temperature is greater than or equal to a preset first engine oil temperature threshold value and is less than a preset second engine oil temperature threshold value, opening the variable air inlet grille and controlling the fan to operate at a first gear;
and when the engine oil temperature is greater than or equal to the second engine oil temperature threshold value, opening the variable air inlet grille and controlling the fan to operate at a second gear, wherein the second gear is greater than the first gear.
6. The cooling system control method according to claim 1, wherein the operating state parameter further includes a transmission oil temperature, and the controlling the cooling system of the vehicle according to the operating state parameter and the air conditioning system state specifically includes:
when the gearbox oil temperature is greater than or equal to a preset first gearbox oil temperature threshold value and is less than a preset second gearbox oil temperature threshold value, opening the variable air inlet grille and controlling the fan to operate at a first gear;
and when the oil temperature of the gearbox is greater than or equal to the oil temperature threshold of the second gearbox, opening the variable air inlet grille and controlling the fan to operate at a second gear, wherein the second gear is greater than the first gear.
7. The cooling system control method according to claim 1, wherein the operating state parameter further includes a transmission clutch temperature, and the controlling the cooling system of the vehicle according to the operating state parameter and the air conditioning system state specifically includes:
when the temperature of the gearbox clutch is greater than or equal to a preset first gearbox clutch temperature threshold and is smaller than a preset second gearbox clutch temperature threshold, opening the variable air inlet grille and controlling the fan to operate at a first gear;
and when the temperature of the gearbox clutch is greater than or equal to the temperature threshold of the second gearbox clutch, opening the variable air inlet grille and controlling the fan to be located at a second gear to operate, wherein the second gear is greater than the first gear.
8. A storage medium storing computer instructions for performing all the steps of a cooling system control method according to any one of claims 1 to 7 when the computer instructions are executed by a computer.
9. An electronic device, comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to:
acquiring running state parameters of a vehicle and an air conditioning system state, wherein the running state parameters comprise vehicle speed, engine coolant temperature and electronic thermostat starting temperature, and the air conditioning system state comprises a closing state and an opening state;
controlling a cooling system of a vehicle according to the operating condition parameter and the air conditioning system state, the cooling system including a variable intake grill and a fan: when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a first preset temperature difference value, opening the variable air intake grille;
when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than or equal to a second preset temperature difference value, closing the variable air inlet grille, wherein the second preset temperature difference value is smaller than the first preset temperature difference value;
when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is smaller than a third preset temperature difference value, the fan is turned off, and the third preset temperature difference value is larger than the first preset temperature difference value;
when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to a third preset temperature difference value and smaller than a fourth preset temperature difference value, controlling the fan to operate at a first gear;
and when the difference between the temperature of the engine coolant and the opening temperature of the electronic thermostat is greater than or equal to the fourth preset temperature difference, controlling the fan to be located at a second gear to operate, wherein the second gear is greater than the first gear.
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| CN112654221B (en) * | 2021-01-18 | 2023-04-11 | 成都西部硅谷科技有限公司 | Energy-saving container data center and temperature control method thereof |
| CN113738491B (en) * | 2021-09-28 | 2022-12-13 | 一汽解放汽车有限公司 | Engine cooling system and control method thereof |
| CN114274764B (en) * | 2021-12-15 | 2023-06-09 | 东风汽车集团股份有限公司 | Method, device and equipment for controlling air inlet grille blade and readable storage medium |
| CN115370460B (en) * | 2022-08-09 | 2023-07-07 | 东风柳州汽车有限公司 | Actively controlled cooling system |
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