CN210239829U - Cooling system of engine - Google Patents
Cooling system of engine Download PDFInfo
- Publication number
- CN210239829U CN210239829U CN201921012035.1U CN201921012035U CN210239829U CN 210239829 U CN210239829 U CN 210239829U CN 201921012035 U CN201921012035 U CN 201921012035U CN 210239829 U CN210239829 U CN 210239829U
- Authority
- CN
- China
- Prior art keywords
- temperature
- engine
- threshold value
- state
- cooling system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The application discloses a cooling system of an engine, a control element of the cooling system is used for controlling the cooling system to be in a first state when a protection element of the cooling system is in a first state, adjusting the first threshold value within the control element to a second threshold value based on the temperature detected by its first temperature detecting element, and controls the heat radiating element thereof to radiate heat from the engine based on the temperature detected by the second temperature detecting element thereof and the second threshold value, so that the control element of the cooling system can adjust the working state of the heat dissipation element according to the ambient temperature, thereby adjusting the heat dissipation capability of the heat dissipation element, when the external environment is a high temperature environment, the control element can improve the heat dissipation capability of the heat dissipation element, when the external environment is a low temperature environment, the control element can reduce the heat dissipation capability of the heat dissipation element, therefore, the temperature reduction of the engine can be accurately controlled, and the difference between the actual working temperature of the engine and the optimal working temperature of the engine is reduced.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to a cooling system of an engine.
Background
In the running process of the whole vehicle, the cooling system of the engine controls the on-off state of a large coil and a small coil in the electromagnetic clutch according to the water temperature of the engine or the air inlet temperature of the engine so as to change the rotating speed of a fan fixedly connected to the electromagnetic clutch and achieve the purpose of cooling the engine to different degrees.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, an embodiment of the present application provides a cooling system of an engine, so as to accurately control a temperature reduction of the engine, and reduce a difference between an actual operating temperature of the engine and an optimal operating temperature thereof.
In order to solve the above problem, the embodiment of the present application provides the following technical solutions:
an engine cooling system comprising:
a first temperature detection element for detecting an ambient temperature;
a second temperature detection element for detecting a temperature of a preset position including at least one of the water tank and an air intake of the engine;
a heat radiating member for radiating heat to the engine;
a protection element comprising a first state and a second state, wherein the first state and the second state are two different states;
a control element configured to adjust a first threshold value in the control element to a second threshold value based on the temperature detected by the first temperature detection element when the protection element is in the first state, and to control the heat dissipation element to dissipate heat from the engine based on the temperature detected by the second temperature detection element and the second threshold value.
Optionally, the control element is further configured to control the heat dissipation element to dissipate heat of the engine based on the temperature detected by the second temperature detection element and the first threshold when the protection element is in the second state.
Optionally, the control element is further configured to control the protection element to switch from the first state to the second state in response to the first operation.
Optionally, the second threshold is greater than the first threshold.
Optionally, the control element is configured to, when the protection element is in the first state, control the heat radiation element to specifically perform, when the heat radiation element radiates heat to the engine, based on the temperature detected by the second temperature detection element and the second threshold: and when the protection element is in the first state, controlling the heat dissipation element to dissipate heat of the engine at a first power based on the temperature detected by the second temperature detection element and the second threshold.
Optionally, the control element is further configured to adjust a third threshold value in the control element to a fourth threshold value based on the temperature detected by the first temperature detection element when the protection element is in the first state, and control the heat dissipation element to dissipate heat of the engine at a second power based on the temperature detected by the second temperature detection element and the fourth threshold value;
wherein the second power is less than the first power.
Optionally, the lower the temperature detected by the first temperature detection element is, the larger the difference between the second threshold and the first threshold is.
Optionally, the lower the temperature detected by the first temperature detection element is, the larger the difference between the fourth threshold and the third threshold is.
Optionally, when the temperature detected by the first temperature detection element is the same, the difference between the second threshold and the first threshold is greater than or equal to the difference between the fourth threshold and the third threshold.
Optionally, the method further includes: an ambient temperature indicator light connected to the control element, the ambient temperature indicator light comprising: a first ambient temperature indicator light, a second ambient temperature indicator light and a third ambient temperature indicator light;
when the temperature detected by the first temperature detection element is lower than a first temperature and not lower than a second temperature, the first ambient temperature indicator lamp is turned on;
when the temperature detected by the first temperature detection element is lower than a second temperature and is not lower than a third temperature, the second ambient temperature indicator lamp is turned on;
when the temperature detected by the first temperature detection element is lower than a third temperature, the third ambient temperature indicator lamp is turned on.
Compared with the prior art, the technical scheme has the following advantages:
in the cooling system of the engine provided in the embodiment of the present application, the control element is configured to adjust the first threshold value in the control element to the second threshold value based on the temperature detected by the first temperature detection element when the protection element is in the first state, and control the heat dissipation element to dissipate heat from the engine based on the temperature detected by the second temperature detection element and the second threshold value, so that the control element in the present application can adjust the operating state of the heat dissipation element according to the ambient temperature, thereby adjusting the heat dissipation capability of the heat dissipation element, when the external environment is a high-temperature environment, the control element can improve the heat dissipation capability of the heat dissipation element, when the external environment is a low-temperature environment, the control element can reduce the heat dissipation capability of the heat dissipation element, accurately control the temperature reduction of the engine, and reduce the difference between the actual operating temperature and the optimal operating temperature of the engine, the working efficiency of the engine is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a cooling system of an engine provided in the prior art;
FIG. 2 is a schematic structural diagram of a cooling system of an engine according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram illustrating an operation principle of a cooling system of an engine according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited to the specific embodiments disclosed below.
As described in the background section, the cooling system of the engine in the prior art cannot accurately control the actual operating temperature of the engine to be close to the optimal operating temperature, so that the difference between the actual operating temperature and the optimal operating temperature of the engine is large, and the operating efficiency of the engine is affected.
As shown in fig. 1, the structure of a cooling system of an engine in the related art includes:
a water temperature sensor 10 for detecting a temperature of the water tank;
an intake air temperature sensor 20 for detecting an intake air temperature of the engine; it should be noted that the inlet air temperature of the engine, i.e., the outlet air temperature of the intercooler of the automobile, i.e., the temperature before entering the engine after being cooled by the intercooler.
An air conditioner switch 30 for controlling the operating state of the vehicle air conditioner;
the heat dissipation element 40 comprises an electromagnetic clutch and a fan fixedly connected with the electromagnetic clutch, and the heat dissipation element 40 is used for dissipating heat of the engine;
an ECU controller 50 for controlling the heat radiating member 40 to radiate heat from the engine based on the temperatures detected by the water temperature sensor 10 and/or the intake air temperature sensor 20, and acquiring the rotation speed of the heat radiating member by a rotation speed sensor 60 connected to the heat radiating member 40; the ECU controller 50 is also used to control the operating state of the air conditioner switch 30.
Specifically, the working process of the engine is as follows: when the temperature of the water tank detected by the water temperature sensor or the intake air temperature of the engine detected by the intake air temperature sensor reaches the electromagnetic clutch first gear pull-in set value T1, the fan starts to operate at the rotation speed N1 corresponding to the first gear. When the set value T2 of the second gear attracting temperature of the electromagnetic clutch is reached, the fan starts to work at the set rotating speed N2 of the second gear, and when the set value T3 of the third gear attracting temperature of the electromagnetic clutch is reached, the fan starts to work at the set rotating speed N3 of the third gear, so that the temperature of the engine is reduced.
In actual use, the inventor researches and discovers that after the cooling system is used for cooling the engine, the difference between the actual working temperature and the optimal working temperature of the engine is large, and the working efficiency of the engine is influenced to a certain extent.
The inventor further researches and discovers that under the conditions that the temperature of a water tank is the same and the air inlet temperature of an engine is the same, and under different environmental temperatures, the cooling effect of fans with the same rotating speed on the engine is different, for example, when the fans work at the third gear of rotating speed in a high-temperature environment, the actual working temperature of the engine is higher than that when the fans work at the third gear of rotating speed in a low-temperature environment, the actual working temperature of the engine is higher, so that the cooling system of the engine in the prior art can control the rotating speed of the fans only according to the water temperature or the air inlet temperature of the engine to complete the cooling of the engine, and the influence of the environmental temperature on the heat dissipation efficiency of the cooling system of the engine is not considered, so that the cooling system of the engine in the prior art can not accurately control the actual working temperature of the engine to be close to the optimal working temperature, and the difference between the actual working temperature, affecting the operating efficiency of the engine.
Based on the above research, the present application provides a cooling system of an engine, as shown in fig. 2, the cooling system includes:
a first temperature detection element 100 for detecting an ambient temperature, specifically, an ambient temperature at which the engine is located;
a second temperature detecting element 200 for detecting a temperature of a preset position including at least one of a water tank and an air intake of an engine;
a heat radiating member 300 for radiating heat to the engine;
a protection element 400, wherein the protection element 400 comprises a first state and a second state, wherein the first state and the second state are two different states, optionally, the first state is an open state, and the second state is a closed state;
a control element 500, wherein the control element 500 is configured to adjust a first threshold value in the control element 500 to a second threshold value based on the temperature detected by the first temperature detection element 100 when the protection element 400 is in the first state, and control the heat dissipation element 300 to dissipate heat from the engine based on the temperature detected by the second temperature detection element 200 and the second threshold value.
Specifically, in an embodiment of the present application, the control element is an ECU (Electronic control unit) control unit.
Optionally, in an embodiment of the present application, the default state of the protection element is an open state, that is, the protection element is in a normally open state, but this is not limited in this application, as the case may be.
On the basis of the above embodiments, in one embodiment of the present application, the first temperature detection element is a first temperature sensor, and the second temperature detection element is a second temperature sensor, wherein the second temperature sensor includes at least one of a first sub-temperature sensor for detecting a temperature of a water tank and a second sub-temperature sensor for detecting a temperature of an air intake of an engine.
If the second temperature sensor only comprises a first sub-temperature sensor for detecting the temperature of the water tank, the control element is used for controlling the heat dissipation element to dissipate heat of the engine based on the temperature of the water tank detected by the first sub-temperature sensor and the second threshold when the protection element is in the first state; if the second temperature sensor only comprises a second sub-temperature sensor for detecting the temperature of the air inlet of the engine, the control element is used for controlling the heat dissipation element to dissipate heat of the engine based on the temperature of the air inlet of the engine detected by the second sub-temperature sensor and a second threshold value when the protection element is in the first state. If the second temperature sensor comprises a first sub-temperature sensor for detecting the temperature of the water tank and a second sub-temperature sensor for detecting the temperature of the air inlet of the engine, the control element is used for controlling the heat dissipation element to dissipate heat of the engine based on the temperature of the water tank detected by the first sub-temperature sensor, the temperature of the air inlet of the engine detected by the second sub-temperature sensor and the second threshold when the protection element is in the first state.
It should be noted that, if the water tank temperature detected by the first sub-temperature sensor and the air inlet temperature of the engine detected by the second sub-temperature sensor are different, when the protection element is in the first state, the control element controls the heat dissipation element to dissipate heat from the engine based on the smaller value of the water tank temperature detected by the first sub-temperature sensor and the air inlet temperature of the engine detected by the second sub-temperature sensor, and the second threshold. That is, if the temperature of the water tank detected by the first sub temperature sensor is lower than the temperature of the engine air inlet detected by the second sub temperature sensor, the control element is configured to control the heat dissipation element to dissipate heat from the engine based on the temperature of the water tank detected by the first sub temperature sensor and the second threshold value when the protection element is in the first state; if the temperature of the water tank detected by the first sub-temperature sensor is greater than the temperature of the air inlet of the engine detected by the second sub-temperature sensor, the control element is used for adjusting the heat dissipation of the heat dissipation element to the engine based on the temperature of the air inlet of the engine detected by the second sub-temperature sensor and the second threshold when the protection element is in the first state.
Therefore, in the cooling system of the engine provided by the embodiment of the application, the control element can control the heat dissipation element to dissipate the heat of the engine according to the ambient temperature and the temperature of the preset position, so that the cooling system of the engine in the present application can adjust the operating state of the heat radiating element according to the ambient temperature, thereby adjusting the heat dissipation capability of the heat dissipation element, when the external environment is a high temperature environment, the control element can improve the heat dissipation capability of the heat dissipation element, when the external environment is a low temperature environment, the control element can reduce the heat dissipation capability of the heat dissipation element, therefore, the cooling process of the engine can be accurately controlled, the difference value between the actual working temperature and the optimal working temperature of the engine is reduced, the engine works near the optimal working temperature as far as possible, and the working efficiency of the engine is improved.
On the basis of the above embodiment, in an embodiment of the present application, the second threshold may be a pre-stored value, or may be a value obtained by the control element performing calculation based on the ambient temperature detected by the first temperature detection element and the first threshold, which is not limited in this application, as the case may be.
It should be noted that, during the whole operation process of the engine, different ambient temperatures may be experienced, such as weather changes in a same area, or the temperatures of areas where automobiles pass are different, such as long-distance trucks and buses may be driven from northeast to plain or south, so that the ambient temperature changes experienced by the automobiles are significant, and in this case, the existing cooling system of the engine is further unable to accurately control the actual working temperature of the engine to be close to the optimal working temperature, which affects the working efficiency of the engine.
To above-mentioned problem, the first temperature detection element in this application embodiment can real-time supervision in the motion process of whole engine the ambient temperature that the engine was located, also can detect with preset frequency the ambient temperature that the engine was located, so that the concrete numerical value of second threshold value can be adjusted in real time to the control element according to ambient temperature's change to with the actual operating temperature accurate control of engine near best operating temperature, improve the work efficiency of engine, and then make the interior petrol of engine fully react, reduce oil consumption and use cost.
It should be noted that, in practical use, the first temperature detection element may have a phenomenon of inaccurate measurement or failure, and in order to prevent the situation that the heat dissipation capability of the heat dissipation element to the engine is insufficient, the engine temperature is damaged due to too high temperature, or the temperature of the engine is too low, and the oil consumption is too high due to the first temperature detection element being damaged or the detected temperature being inaccurate, on the basis of any one of the above embodiments, in an embodiment of the present application, the control element is further configured to control the heat dissipation element to dissipate heat from the engine based on the temperature detected by the second temperature detection element and the first threshold value when the protection element is in the second state, so as to avoid the failure state of the first temperature detection element itself from adversely affecting the working efficiency of the engine.
On the basis of the above embodiment, in an embodiment of the present application, the control element is further configured to control the protection element to switch from the first state to the second state in response to the first operation, so that the control element controls the heat dissipation element to dissipate heat from the engine based on the temperature detected by the second temperature detection element and the first threshold, so that the control element can timely cancel the influence of the ambient temperature on the heat dissipation element shift-position opening temperature in a special case; optionally, in an embodiment of the present application, the first operation may be an operation triggered when the user finds that the first temperature detection element is broken or the detected temperature is inaccurate. However, the present application is not limited thereto, as the case may be.
Specifically, the working process of the engine is as follows: when the user discovers that the temperature of the engine on the instrument panel of the whole vehicle is too high, the phenomenon that the temperature of the first temperature detection element is inaccurate is judged, at the moment, the user triggers a first operation, the control element responds to the first operation and controls the protection element is switched into a closed state from a normally open state, so that the control element is based on the temperature detected by the second temperature detection element and the first threshold value, controls the heat dissipation element to dissipate heat of the engine, and the influence of the ambient temperature on the cooling effect of the engine is not considered any more.
In other embodiments of the present application, the operation process of the engine may further be: when the user discovers that the temperature of the engine on the instrument panel of the whole vehicle is too high, the phenomenon that the temperature of the first temperature detection element is inaccurate is judged, at the moment, the user triggers the first operation, namely the protection element is pressed down, so that the protection element is switched into the second state from the first state, at the moment, the protection element is in the closed state, the control element is based on the temperature detected by the second temperature detection element and the first threshold value, the control is carried out, the heat dissipation element is right the engine dissipates heat, and the influence of the ambient temperature on the cooling effect of the engine is not considered.
Specifically, in one embodiment of the present application, the protection element is a protection switch. However, the present application is not limited thereto, as the case may be.
On the basis of any one of the above embodiments, in an embodiment of the present application, the heat dissipation element includes an electromagnetic clutch and a fan fixedly connected to the electromagnetic clutch, the electromagnetic clutch includes a first relay, a first coil electrically connected to the first relay, a second relay, and a second coil electrically connected to the second relay, wherein the first coil and the second coil are connected in parallel. It should be noted that the fan is fixed to the front end of the electromagnetic clutch and is screwed with a bolt to prevent the fan from falling.
Specifically, the working process of the heat dissipation element is as follows: when the temperature detected by the second temperature detection element is lower, the first relay and the second relay are both in an off state, namely the first coil and the second coil are not in work, the electromagnetic clutch provides a first rotating speed N1 for the fan, the first rotating speed N1 is 0, and the fan is in a free follow-up state at the moment; when the temperature detected by the second temperature detection element is higher, the first relay is in a closed state, the second relay is in an open state, namely the first coil works, the second coil does not work, at the moment, the electromagnetic clutch provides a second rotating speed N2 for the fan, and the fan works at the second rotating speed N2 to radiate heat of the engine; when the temperature detected by the second temperature detection element is higher, the first relay and the second relay are both in a closed state, namely the first coil and the second coil work simultaneously, at the moment, the electromagnetic clutch provides a third rotating speed N3 for the fan, and the fan works at a third rotating speed N3 to dissipate heat of the engine, wherein N1 is less than N2 and less than N3. It should be noted that, in the embodiment of the present application, the first rotation speed N1 of the fan corresponds to the first gear of the electromagnetic clutch, the second rotation speed N2 of the fan corresponds to the second gear of the electromagnetic clutch, and the third rotation speed N3 of the fan corresponds to the third gear of the electromagnetic clutch.
On the basis of the foregoing embodiment, in an embodiment of the present application, the control element is configured to control the heat dissipation element to dissipate heat of the engine based on the temperature detected by the second temperature detection element and the second threshold value when the protection element is in the first state, specifically to: and when the protection element is in the first state, controlling the heat dissipation element to dissipate heat of the engine at a first power based on the temperature detected by the second temperature detection element and the second threshold.
On the basis of the above embodiments, in an embodiment of the present application, the heat dissipation element dissipating heat of the engine at the first power specifically includes: the heat dissipation element dissipates heat of the engine at a third rotating speed, at this time, the first threshold may be an opening temperature value corresponding to a third gear of the heat dissipation element when the engine cooling system leaves a factory, or may be a first predetermined value, where the first predetermined value is a value corrected on the basis of the opening temperature value corresponding to the third gear of the heat dissipation element when the engine cooling system leaves the factory; in another embodiment of the present application, the heat dissipation element dissipating heat of the engine at the first power specifically includes: the heat dissipation element dissipates heat of the engine at a second rotation speed, and at this time, the first threshold may be an opening temperature value corresponding to a second gear of the heat dissipation element when the engine cooling system leaves a factory, or may be a second predetermined value, where the second predetermined value is a value corrected based on the opening temperature value corresponding to the second gear of the heat dissipation element when the engine cooling system leaves the factory.
In this embodiment, the disengagement temperature value of the third gear of the electromagnetic clutch is fixed and may be selected as a factory-set value. The present application is not limited thereto, as the case may be.
In order to ensure that an engine does not open a pot in the prior art, the opening temperature of the third gear of the radiating element is usually set to be lower than an alarm value, so that the attraction temperature of the third gear of the electromagnetic clutch is lower, and thus, the difference between the opening temperature and the closing temperature corresponding to the third gear of the radiating element is smaller, namely, the difference between the attraction temperature and the disengagement temperature of the third gear of the electromagnetic clutch is smaller, and multiple times of attraction and disengagement are easy to occur in a short time, so that the attraction and disengagement operations of the electromagnetic clutch corresponding to the third gear are too frequent, the abrasion to an attraction disc of the electromagnetic clutch is increased, and the service life of the electromagnetic clutch is shortened.
Therefore, on the basis of the above embodiments, in a preferred embodiment of the present application, the heat dissipation element dissipates heat of the engine at the first power preferably: the radiator element is right with the third rotational speed the engine dispels the heat, through improving the opening temperature of radiator element third gear increases the difference between electromagnetic clutch third gear actuation temperature and the disengagement temperature to reducing the difference between the actual operating temperature of engine and the best operating temperature improves the work efficiency's of engine basis, reduces actuation, the disengagement number of times of second relay among the electromagnetic clutch, and then reduces the wearing and tearing of electromagnetic clutch actuation dish, prolongs electromagnetic clutch's life-span.
In addition, the opening temperature of the third gear of the radiating element is set to be lower than the alarm value, so that the fan usually starts to rotate in advance to ensure that the engine has enough time to reduce the temperature of a water tank of the engine to a reasonable range, but the fan enters a high-speed gear in advance, so that the power consumption of the fan is large, and the problem is more obvious particularly when the ambient temperature is low.
To the above problem, in an embodiment of the present application, when the external environment is the low temperature environment, the control element will first threshold in the control element is adjusted to the second threshold, wherein, the second threshold is greater than first threshold to improve radiating element's opening temperature, thereby guaranteeing the actual operating temperature of engine is on near the basis of best operating temperature, postpones the opening time of radiating element third gear, reduces radiating element's consumption, thereby dwindles the difference between the actual operating temperature of engine and the best operating temperature, improves the work efficiency of engine, reduces radiating element's power simultaneously, thereby reduces radiating element's power waste.
It should be noted that, when the heat dissipation element dissipates heat with the first power and corresponds to the second gear of the heat dissipation element, and when the external environment is a low-temperature environment, the control element adjusts the first threshold in the control element to be the second threshold, where the second threshold is greater than the first threshold, which can increase the starting temperature of the corresponding gear (i.e., the second gear) of the heat dissipation element, delay the starting time of the corresponding gear of the heat dissipation element, and also can reduce the power consumption of the heat dissipation element, and reduce the power waste of the heat dissipation element.
In another embodiment of this application, when external environment is high temperature environment, control element will first threshold in the control element is adjusted to the second threshold, wherein, the second threshold is less than first threshold to reduce radiating element's opening temperature, in advance radiating element's opening time improves radiating element to the cooling effect of engine, avoids radiating element's opening time is late, leads to the engine to produce the overheated phenomenon of temperature, influences the work efficiency and the life of engine, promotes product property ability, improves product reliability.
The cooling system of the engine provided in the embodiment of the present application is described below by taking as an example that the second threshold is greater than the first threshold, and the first threshold is an opening temperature value corresponding to a third gear of a heat dissipation element when the engine cooling system leaves a factory.
In addition, since the engine needs different heat dissipation effects when the temperatures detected by the second temperature detection elements are different, in an embodiment of the present application, the control element is further configured to adjust a third threshold value in the control element to a fourth threshold value based on the temperature detected by the first temperature detection element when the protection element is in the first state, and control the heat dissipation element to dissipate heat of the engine at a second power based on the temperature detected by the second temperature detection element and the fourth threshold value; wherein the second power is less than the first power to meet the heat dissipation requirements of the engine under different conditions.
On the basis of the above embodiment, in an embodiment of the present application, the control element is further configured to control the heat dissipation element to dissipate heat from the engine based on the temperature detected by the second temperature detection element and the third threshold when the protection element is in the second state, so as to avoid a failure state of the first temperature detection element itself from adversely affecting the operating efficiency of the engine.
On the basis of the above embodiment, in an embodiment of the present application, the fourth threshold may be a pre-stored value, or may be a value obtained by the control element performing calculation based on the ambient temperature detected by the first temperature detection element and the third threshold, which is not limited in this application, as the case may be.
It should be noted that, in this embodiment of the application, the third threshold may be an opening temperature value corresponding to a second gear of the heat dissipation element when the engine cooling system is shipped from a factory, or may be a second predetermined value, where the second predetermined value is a value obtained by correcting the opening temperature value corresponding to the second gear of the heat dissipation element when the engine cooling system is shipped from a factory. The third threshold is taken as an example of an opening temperature value corresponding to the second gear of the heat dissipation element when the engine cooling system leaves the factory. In the embodiment of the application, the engine cooling system can reduce the power waste of the third gear of the heat dissipation element and also can reduce the power waste of the second gear of the heat dissipation element.
Further, in a preferred embodiment of the present application, the heat dissipation element dissipating heat of the engine at the second power is specifically: the fan among the radiator element is right with the second rotational speed the engine dispels the heat, through improving the opening temperature of radiator element second gear increases the difference between second gear actuation temperature and the disengagement temperature to reduce the difference between the actual operating temperature of engine and the best operating temperature improves the work efficiency's of engine basis, reduces the actuation number of times of electromagnetic clutch's first relay, and then reduces the wearing and tearing of electromagnetic clutch actuation dish, further prolongs electromagnetic clutch's life-span.
It should be noted that, in the embodiment of the present application, the disengagement temperature value of the second gear of the electromagnetic clutch is fixed and may be selected as a factory-set value.
On the basis of the above embodiment, in an embodiment of the present application, the control element is further configured to control the heat dissipation element to dissipate heat from the engine based on the temperature detected by the second temperature detection element and the fifth threshold when the protection element is in the second state, so as to avoid a failure state of the first temperature detection element itself from adversely affecting the operating efficiency of the engine.
On the basis of any one of the above embodiments, in an embodiment of the present application, the lower the temperature detected by the first temperature detecting element is, the larger the difference between the second threshold and the first threshold is, so as to ensure that the fan is always turned on at a proper temperature, thereby reducing the difference between the actual operating temperature and the optimal operating temperature of the engine, and simultaneously postponing the turn-on time of the third gear of the heat dissipating element, so as to reduce the power consumption of the heat dissipating element.
Optionally, when the temperature E detected by the first temperature detection element is less than a first temperature E1 and not less than a second temperature E2, the difference between the second threshold and the first threshold is X;
when the temperature E detected by the first temperature detection element is less than a second temperature E2 and not less than a third temperature E3, the difference between the second threshold and the first threshold is Y;
when the temperature E detected by the first temperature detection element is less than a third temperature E3, the difference between the second threshold and the first threshold is Z;
wherein, E1 is more than E2 is more than E3, and X is more than Y and less than Z.
Specifically, in one embodiment of the present application, when E1 ═ 0 ℃, E2 ═ 10 ℃, E3 ═ 25 ℃, X ═ 3 ℃, Y ═ 5 ℃, and Z ═ 7 ℃, in other embodiments of the present application, when E1 ═ 0 ℃, E2 ═ -10 ℃, and E3 ═ 25 ℃, the difference X, Y, Z between the second threshold and the first threshold may take other values. The present application is not limited thereto, as the case may be.
On the basis of any one of the above embodiments, in an embodiment of the present application, the lower the temperature detected by the first temperature detecting element is, the larger the difference between the fourth threshold and the third threshold is, so as to ensure that the fan is always turned on at a proper temperature, thereby reducing the difference between the actual operating temperature and the optimal operating temperature of the engine, and simultaneously postponing the on-time of the second gear of the heat dissipating element, so as to reduce the power consumption of the heat dissipating element.
Optionally, when the temperature E detected by the first temperature detection element is less than the first temperature E1 and not less than the second temperature E2, the difference between the fourth threshold and the third threshold is X1;
when the temperature E detected by the first temperature detection element is less than a second temperature E2 and not less than a third temperature E3, the difference between the fourth threshold and the third threshold is Y1;
when the temperature E detected by the first temperature detection element is less than a third temperature E3, the difference between the fourth threshold and the third threshold is Z1;
wherein E1 is more than E2 is more than E3, X1 is more than Y1 is more than Z1.
Specifically, in one embodiment of the present application, when E1 ═ 0 ℃, E2 ═ 10 ℃, E3 ═ 25 ℃, X1 ═ 3 ℃, Y1 ═ 5 ℃, and Z1 ═ 7 ℃, in other embodiments of the present application, when E1 ═ 0 ℃, E2 ═ 10 ℃, E3 ═ 25 ℃, the difference between the fourth threshold and the third threshold, X1, Y1, and Z1, may also take other values. The present application is not limited thereto, as the case may be.
On the basis of the above-described embodiment, in an embodiment of the present application, when the temperatures detected by the first temperature detection elements are the same, the difference between the second threshold value and the first threshold value is greater than or equal to the difference between the fourth threshold value and the third threshold value.
On the basis of any one of the above embodiments, in an embodiment of the present application, the cooling system of the engine further includes: an ambient temperature indicator light connected to the control element, the ambient temperature indicator light comprising: first ambient temperature pilot lamp, second ambient temperature pilot lamp and third ambient temperature pilot lamp to increase the pilot lamp of corresponding ambient temperature gear, so that let the user directly learn current ambient temperature, thereby improve the user and experience directly perceived.
Specifically, in one embodiment of the present application, when the temperature detected by the first temperature detection element is less than a first temperature E1 and not less than a second temperature E2, the first ambient temperature indicator lamp is turned on;
when the temperature detected by the first temperature detecting element is less than a second temperature E2 and not less than a third temperature E3, the second ambient temperature indicator lamp is turned on;
when the temperature detected by the first temperature detecting element is lower than the third temperature E3, the third ambient temperature indicator lamp is turned on, which is not limited in this application, as the case may be.
The operation of the engine cooling system provided herein will now be described with reference to a specific embodiment, as shown in FIG. 3.
When the power main switch 700 is closed, the battery 800 supplies power to the whole circuit, the engine starts to work, the first temperature detection element 100 electrically connected with the ECU control unit 501 starts to detect the ambient temperature, the ECU control unit 501 judges the ambient temperature section where the current ambient temperature corresponding to the temperature detected by the first temperature detection element 100 is located, and controls the ambient temperature indicator lamp 600 corresponding to the ambient temperature section to be turned on, the second temperature detection element 200 electrically connected with the ECU control unit 501 starts to detect the temperature of the water tank of the engine and the temperature of the air inlet of the engine, the protection element 400 connected with the ECU control unit 501 is in a normally open state, the ECU control unit 501 adjusts the first threshold value to the second threshold value, the third threshold value to the fourth threshold value in the ECU control unit 501 based on the ambient temperature detected by the first temperature detection element 100, and when the second temperature detection element 200 detects the temperature of at least one of the water tank of the engine and the air inlet of the engine When the fourth threshold is reached, the ECU control unit 501 controls the first relay 303 of the electromagnetic clutch connected with the ECU control unit 501 to close, the first coil 301 works, the second relay 304 maintains the off state, and the second coil 302 does not work, so that the rotating speed of the fan reaches the second rotating speed N2, and the engine is cooled with the second power; when the second temperature detection element detects that the temperature of at least one of a water tank of the engine and an air inlet of the engine reaches a second threshold value through 200, the ECU control unit 501 controls the first relay 303 and the second relay 304 of the electromagnetic clutch connected with the ECU control unit 501 to attract based on the temperature detected by the second temperature detection element 200 and the second threshold value, the first coil 301 and the second coil 302 work simultaneously, the rotating speed of the fan reaches a third rotating speed N3, and therefore the engine is cooled with first power.
In this embodiment, when the current on the line on which the fuse 900 is located exceeds 10A, the fuse is automatically blown.
To sum up, in the cooling system of an engine provided in the embodiment of the present application, the control element is configured to adjust the first threshold value in the control element to the second threshold value based on the temperature detected by the first temperature detection element when the protection element is in the first state, and control the heat dissipation element to dissipate heat of the engine based on the temperature detected by the second temperature detection element and the second threshold value, so that the control element in the present application can adjust the working state of the heat dissipation element according to the ambient temperature to adjust the heat dissipation capability of the heat dissipation element, when the external environment is a high temperature environment, the control element can improve the heat dissipation capability of the heat dissipation element, when the external environment is a low temperature environment, the control element can reduce the heat dissipation capability of the heat dissipation element, thereby accurately controlling the cooling of the engine, the difference between the actual working temperature and the optimal working temperature of the engine is reduced, and the working efficiency of the engine is improved.
Moreover, the first temperature detection element in the embodiment of the application can monitor the ambient temperature of the engine in real time in the motion process of the whole engine, and can detect the ambient temperature of the engine in preset frequency, so that the control element can adjust the specific numerical value of the second threshold in real time according to the change of the ambient temperature, thereby accurately controlling the actual working temperature of the engine to be close to the optimal working temperature, improving the working efficiency of the engine, further enabling the gasoline in the engine to fully react, and reducing the oil consumption and the use cost.
In addition, the control element is further configured to control the heat dissipation element to dissipate heat from the engine based on the temperature detected by the second temperature detection element and the first threshold value when the protection element is in the second state, so as to avoid a failure state of the first temperature detection element itself from adversely affecting the operating efficiency of the engine.
In a preferred embodiment of the present application, the heat dissipation element dissipating heat of the engine at the first power is specifically: the radiator element is right with the third rotational speed the engine dispels the heat, through improving the opening temperature of radiator element third gear increases the difference between third gear actuation temperature and the disengagement temperature to reducing the difference between the actual operating temperature of engine and the best operating temperature improves the work efficiency's of engine basis, reduces actuation, the disengagement number of times of electromagnetic clutch's second relay, and then reduces the wearing and tearing to electromagnetic clutch actuation dish, prolongs electromagnetic clutch's life-span.
In the description, each part is described in a progressive manner, each part is emphasized to be different from other parts, and the same and similar parts among the parts are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An engine cooling system, comprising:
a first temperature detection element for detecting an ambient temperature;
a second temperature detection element for detecting a temperature of a preset position including at least one of the water tank and an air intake of the engine;
a heat radiating member for radiating heat to the engine;
a protection element comprising a first state and a second state, wherein the first state and the second state are two different states;
a control element configured to adjust a first threshold value in the control element to a second threshold value based on the temperature detected by the first temperature detection element when the protection element is in the first state, and to control the heat dissipation element to dissipate heat from the engine based on the temperature detected by the second temperature detection element and the second threshold value.
2. The cooling system according to claim 1, wherein the control element is further configured to control the heat radiating element to radiate heat from the engine based on the temperature detected by the second temperature detecting element and the first threshold value when the protection element is in the second state.
3. The cooling system of claim 1, wherein the control element is further configured to control the protection element to switch from the first state to the second state in response to the first operation.
4. A cooling system according to any one of claims 1-3, characterised in that the second threshold value is greater than the first threshold value.
5. The cooling system according to claim 4, wherein the control element is configured to control the heat radiating element to radiate heat from the engine, based on the temperature detected by the second temperature detecting element and the second threshold value, when the protection element is in the first state, and is specifically configured to: and when the protection element is in the first state, controlling the heat dissipation element to dissipate heat of the engine at a first power based on the temperature detected by the second temperature detection element and the second threshold.
6. The cooling system according to claim 5, wherein the control element is further configured to adjust a third threshold value in the control element to a fourth threshold value based on the temperature detected by the first temperature detection element when the protection element is in the first state, and to control the heat radiation element to radiate heat from the engine at a second power based on the temperature detected by the second temperature detection element and the fourth threshold value;
wherein the second power is less than the first power.
7. The cooling system according to claim 5, wherein the lower the temperature detected by the first temperature detection element is, the larger the difference between the second threshold value and the first threshold value is.
8. The cooling system according to claim 6, wherein the lower the temperature detected by the first temperature detection element is, the larger the difference between the fourth threshold value and the third threshold value is.
9. The cooling system according to any one of claims 6 to 8, wherein a difference between the second threshold value and the first threshold value is greater than or equal to a difference between the fourth threshold value and the third threshold value when the temperature detected by the first temperature detecting element is the same.
10. The cooling system of claim 1, further comprising: an ambient temperature indicator light connected to the control element, the ambient temperature indicator light comprising: a first ambient temperature indicator light, a second ambient temperature indicator light and a third ambient temperature indicator light;
when the temperature detected by the first temperature detection element is lower than a first temperature and not lower than a second temperature, the first ambient temperature indicator lamp is turned on;
when the temperature detected by the first temperature detection element is lower than a second temperature and is not lower than a third temperature, the second ambient temperature indicator lamp is turned on;
when the temperature detected by the first temperature detection element is lower than a third temperature, the third ambient temperature indicator lamp is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921012035.1U CN210239829U (en) | 2019-06-28 | 2019-06-28 | Cooling system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921012035.1U CN210239829U (en) | 2019-06-28 | 2019-06-28 | Cooling system of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210239829U true CN210239829U (en) | 2020-04-03 |
Family
ID=69988923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921012035.1U Active CN210239829U (en) | 2019-06-28 | 2019-06-28 | Cooling system of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210239829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112060902A (en) * | 2020-08-11 | 2020-12-11 | 长城汽车股份有限公司 | Thermal management control method and device and automobile |
| CN115289052A (en) * | 2022-10-10 | 2022-11-04 | 深圳市华宝新能源股份有限公司 | Fan control method and device, computer equipment and storage medium |
-
2019
- 2019-06-28 CN CN201921012035.1U patent/CN210239829U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112060902A (en) * | 2020-08-11 | 2020-12-11 | 长城汽车股份有限公司 | Thermal management control method and device and automobile |
| CN115289052A (en) * | 2022-10-10 | 2022-11-04 | 深圳市华宝新能源股份有限公司 | Fan control method and device, computer equipment and storage medium |
| CN115289052B (en) * | 2022-10-10 | 2023-03-07 | 深圳市华宝新能源股份有限公司 | Fan control method and device, computer equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105346354B (en) | The air-conditioning system and control method of pure electric automobile | |
| CN101423011B (en) | Air conditioning system for hybrid power automobile | |
| CN204821036U (en) | Electric automobile air conditioning system | |
| CN210239829U (en) | Cooling system of engine | |
| US9657976B2 (en) | Vehicular HVAC system with modified air recirculation for start-stop engine | |
| CN103883545B (en) | The controlling method of cooling fan of engine and device | |
| CN107882625B (en) | Control method and device for electronic fan of engine | |
| CN109236456A (en) | A kind of control method of variable air inlet grid | |
| WO2021000944A1 (en) | Air conditioner and control method therefor | |
| CN104110780A (en) | Air conditioner and control method and system for electric auxiliary heating thereof | |
| CN105180350A (en) | Heat dissipation control method and heat dissipation device for frequency conversion air conditioner | |
| CN102673345A (en) | Intelligent air-conditioning control system for electric automobile | |
| CN102644503A (en) | Electric control system and method for cooling fan of automobile engine | |
| CN106329028A (en) | Vehicle battery temperature control device and vehicle battery temperature control method | |
| CN106347065A (en) | Carriage temperature control method | |
| CN110435411B (en) | Automobile grille, automobile grille control method and automobile | |
| CN205022545U (en) | On -vehicle electrical heating defogging defroster and have its vehicle | |
| CN202013000U (en) | Controller for automobile air conditioner | |
| CN102991304B (en) | The heater protective apparatus of a kind of air conditioning for automobiles and control method thereof | |
| CN103883544A (en) | Control method and control device for engine cooling fan | |
| CN104442281B (en) | A kind of automobile and air-conditioner controller module thereof | |
| CN203050872U (en) | Engine cooling fan control device | |
| CN106671727A (en) | Electric vehicle air conditioner controller and control method | |
| CN205440287U (en) | Wiper controlling means , wiper and car | |
| US9581348B2 (en) | Method of controlling the temperature of a controller of an electric compressor for an air conditioner in a vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |