CN106704015B - Vehicle and air inlet temperature management controller, system and method thereof - Google Patents
Vehicle and air inlet temperature management controller, system and method thereof Download PDFInfo
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- CN106704015B CN106704015B CN201510512929.7A CN201510512929A CN106704015B CN 106704015 B CN106704015 B CN 106704015B CN 201510512929 A CN201510512929 A CN 201510512929A CN 106704015 B CN106704015 B CN 106704015B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention discloses a vehicle and an air inlet temperature management controller, a system and a method thereof. The invention innovatively utilizes the Peltier effect and provides a controllable temperature management system by matching with a temperature management device and using an electronic principle. The performance of the air inlet system is greatly enhanced by intelligently and logically controlling the air inlet temperature. The problems of insufficient combustion, carbon deposition of the engine, increased oil consumption and the like caused by overhigh or overlow inlet temperature are avoided, and the running reliability and the service life of the engine are improved. Meanwhile, the vehicle maintenance cost caused by the problems is reduced. And solves the problem to be solved in the prior art of vehicles, especially the truck industry.
Description
Technical Field
The invention relates to the field of temperature regulation of vehicle air inlet, in particular to an air inlet temperature management method of a vehicle, a controller and a management system applying the method and the vehicle using the system.
Background
Currently, engines such as vehicles require air to enter the engine interior to participate in combustion work, which requires the air to be at a suitable temperature to do so. For example, a truck using a diesel engine as a power source has air introduced from an air intake, compressed by a turbocharger, increased in temperature, cooled by an intercooler, and introduced into the engine. However, the working environment in which trucks in particular are located is often harsh. For example, when the ambient temperature is low in cold weather and high altitude areas, the air intake temperature of the engine is too low, so that fuel oil and air are mixed and atomized badly, the combustion is insufficient, the horsepower of the engine cannot be normally exerted, and the oil consumption is greatly improved. And often start in low temperature air, causing engine carbon build up. In addition, when the ambient temperature is high in hot days and tropical regions, the result of insufficient combustion and the like can be caused by the fact that the air density is reduced due to the fact that the air inlet temperature of the engine is too high. And if the temperature in the engine cylinder continues to be high, engine failure will be caused. Therefore, either too high or too low intake air temperature can affect engine operation, life, and reliability. The resulting engine reliability and life problems also place a burden on vehicle maintenance. Therefore, a technical solution capable of managing the intake air temperature of a vehicle is a technical solution urgently needed in the vehicle industry, especially in the truck industry.
Disclosure of Invention
An object of the present invention is to provide an intake air temperature management controller of a vehicle, which is capable of intelligently and efficiently controlling the intake air temperature of the vehicle.
It is another object of the present invention to provide an intake air temperature management system of a vehicle, which uses the controller provided by the present invention.
It is still another object of the present invention to provide an intake air temperature management method of a vehicle, which can achieve effective control of the intake air temperature of the vehicle.
In order to achieve the above object, the present invention provides an intake air temperature management controller for a vehicle, the vehicle including an engine, the controller including a receiving module configured to receive at least an engine intake air temperature of the engine, a determining module configured to determine a current operating condition according to the engine intake air temperature, the current operating condition being a low temperature operating condition when the engine intake air temperature is less than a first temperature threshold, the current operating condition being a high temperature operating condition when the engine intake air temperature is greater than a second temperature threshold, the current operating condition being a normal operating condition when the engine intake air temperature is between the first temperature threshold and the second temperature threshold, and a control module configured to control cooling of intake air of the vehicle when the current operating condition is the high temperature operating condition, when the current working condition is the low-temperature working condition, the control module is used for controlling the heating of the air inlet of the vehicle, and when the current working condition is the conventional working condition, the control module does not control the heating or cooling of the air inlet of the vehicle.
Preferably, the vehicle still includes intercooler and turbo charger, the intercooler is connected turbo charger with in order to be used for the cooling to admit air that flows through between the engine, the controller the receiving module still is used for receiving intercooler air inlet temperature of intercooler, works as when intercooler air inlet temperature is less than the third temperature threshold, the judging module judges current operating mode does the low temperature operating mode, works as when intercooler air inlet temperature is greater than the fourth temperature threshold, the judging module judges current operating mode does the high temperature operating mode, works as intercooler air inlet temperature is in the third temperature threshold with when between the fourth temperature threshold, current operating mode does conventional operating mode.
Preferably, when the high-temperature working condition is met, the control module is further used for controlling the intercooler to work, and when the low-temperature working condition is met, the control module is used for controlling the intercooler to work.
Preferably, the difference between the fourth temperature threshold and the first temperature threshold is smaller than the cooling capacity of the intercooler.
According to another object of the present invention, there is provided an intake air temperature management system for a vehicle, the system including a controller, the controller being the intake air temperature management controller provided by the present invention, an engine temperature detection device for detecting the engine intake air temperature and electrically connected to the receiving module of the controller, and a temperature adjustment device for heating or cooling intake air of the vehicle and electrically connected to the control module of the controller.
Preferably, the intake air temperature management system further includes an intercooler temperature detection device, which is configured to detect the intake air temperature of the intercooler and electrically connected to the receiving module, and a cooling fan, which is disposed toward the heat dissipation core of the intercooler and electrically connected to the control module.
Preferably, the intake air temperature management system further comprises an intake duct for introducing the intake air, the intake duct comprising a main intake duct body, and the temperature adjustment device is provided in the main intake duct body.
Preferably, the temperature regulation device comprises a peltier heating and cooling assembly for heating and cooling by means of the peltier effect, the peltier heating and cooling assembly having oppositely arranged and interchangeable cold and hot ends.
Preferably, a main air inlet cavity and a temperature control cavity are separated from the air inlet channel main body through the peltier heating and cooling component, the cold end and the hot end selectively face the main air inlet cavity and the temperature control cavity respectively, the main air inlet cavity is used for the inflow of the inlet air, and the temperature control cavity is provided with a first air inlet and a first air outlet which are communicated with each other, and an exhaust device arranged between the first air inlet and the first air outlet.
Preferably, the temperature control chamber includes a heat exchange chamber adjacent to the temperature adjustment device, the heat exchange chamber having the first air outlet and the exhaust device being located in the heat exchange chamber, wherein the temperature control chamber further includes a foreign matter discharge chamber having a foreign matter discharge port, and a guide structure guiding foreign matter to move toward the foreign matter discharge port, the guide structure being located between the foreign matter discharge chamber and the heat exchange chamber and simultaneously allowing the gas entering from the first air outlet to enter the heat exchange chamber.
Preferably, the guide structure includes a baffle formed on a top wall of the first air inlet and extending downward toward the foreign substance discharge chamber, and a shielding plate formed as a partition between the foreign substance discharge chamber and the heat exchange chamber and extending toward the top wall forming the baffle, wherein a distal end of the shielding plate and a distal end of the baffle are spaced apart.
Preferably, the ends of the baffles are located behind the ends of the baffles and are staggered with respect to a horizontal plane.
Preferably, a check valve is arranged in the foreign matter discharge cavity and located upstream of the foreign matter discharge port, and the check valve can be opened towards the foreign matter discharge port under the action of the gravity of foreign matters.
Preferably, the foreign matter discharge port is open downward and is surrounded by an elastic side wall having a tapered cross section.
Preferably, the first air inlet is opened to extend obliquely downward.
Preferably, the primary air inlet chamber is formed in an inflection structure having the second air inlet, and the temperature adjusting device is located on an outer inner wall of an inflection position of the inflection structure.
Preferably, the second air inlet is opened to extend obliquely downward.
Preferably, a plurality of air guide grids are arranged on a side wall of the inflection structure, which is close to the second air inlet, and the plurality of air guide grids are parallel to each other and arranged at intervals and extend towards the inflection position respectively.
Preferably, the primary air intake chamber comprises a head section, a throat section and a neck section connected in sequence from the secondary air intake, the throat section being located at the inflection point and having an arcuate transition structure.
Preferably, a foreign matter adsorption plate is disposed on a side wall of the neck section close to the temperature adjustment device.
According to still another aspect of the present invention, there is provided a vehicle including the intake air temperature management system provided by the present invention.
According to still another aspect of the present invention, there is provided an intake air temperature management method of a vehicle, the method including receiving at least an engine intake air temperature of the engine, judging the current working condition according to the air inlet temperature of the engine, and when the air inlet temperature of the engine is smaller than a first temperature threshold value, the current working condition is a low-temperature working condition, when the temperature of the inlet air of the engine is larger than a second temperature threshold value, the current working condition is a high-temperature working condition, when the engine intake temperature is between the first temperature threshold and the second temperature threshold, the current operating condition is a normal operating condition, and when the current operating condition is the high temperature operating condition, cooling the inlet air of the vehicle, heating the inlet air of the vehicle when the current working condition is the low-temperature working condition, and when the current working condition is the conventional working condition, the air inlet of the vehicle is not heated or cooled.
Preferably, the method further includes receiving an intercooler intake air temperature of an intercooler between the engine and the turbocharger, determining that the current operating condition is the low-temperature operating condition when the intercooler intake air temperature is less than a third temperature threshold, determining that the current operating condition is the high-temperature operating condition when the intercooler intake air temperature is greater than a fourth temperature threshold, and determining that the current operating condition is the normal operating condition when the intercooler intake air temperature is between the third temperature threshold and the fourth temperature threshold.
Preferably, the intercooler is enabled to work under the high-temperature working condition, and the intercooler is disabled under the low-temperature working condition and the normal working condition.
Preferably, the difference between the set fourth temperature threshold and the first temperature threshold is smaller than the cooling capacity of the intercooler.
According to the technical scheme, the method provided by the invention is used for judging whether to heat or cool the air inlet of the vehicle according to the air inlet temperature of the engine and further combining the air inlet temperature of the intercooler. And innovatively utilizes the peltier effect and uses electronic principles in conjunction with a temperature management device to provide a controllable temperature management system. The performance of the air inlet system is greatly enhanced by intelligently and logically controlling the air inlet temperature. The problems of insufficient combustion, carbon deposition of the engine, increased oil consumption and the like caused by overhigh or overlow inlet temperature are avoided, and the running reliability and the service life of the engine are improved. Meanwhile, the vehicle maintenance cost caused by the problems is reduced. And solves the problem to be solved in the prior art of vehicles, especially the truck industry.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the structure of an intake air temperature management system according to a preferred embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an air scoop of a vehicle according to a preferred embodiment of the present invention;
fig. 3 is a schematic structural diagram of a thermostat provided in a preferred embodiment of the present invention.
Description of the reference numerals
1 air inlet duct body 2 temperature adjusting device
3 engine 4 controller
5 intercooler 6 turbocharger
7 engine temperature detection device 8 intercooler temperature detection device
9 Cooling fan
11 main air inlet cavity 12 temperature control cavity
13 air guide grid 14 foreign matter adsorption plate
21 mounting seat
111 second air inlet 112 head section
113 pharyngeal segment 114 cervical segment
121 first inlet port 122 first outlet port
123 exhaust 124 heat exchange chamber
125 foreign matter discharging cavity 126 guiding structure
127 arc transition 128 triangular reinforcement cavity
100 relay switch 101 accumulator
102 air filter 201 insulating ceramic
202 metal conductor 203P-type semiconductor
204N type semiconductor 205 power supply
1251 foreign matter discharging port 1252 one-way valve
1261 baffle 1262 baffle
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise stated, the terms of orientation such as "upper and lower" are used when the vehicle air inlet provided by the present invention is in normal operation, and specifically, refer to the direction of the drawing of fig. 1. "front and rear" are defined with reference to the flow direction of the respective gases, specifically the gases flow from front to rear.
As shown in fig. 1 to 3, in order to achieve the object of the present invention, the present invention provides a technique for temperature control of intake air of a vehicle, which includes an improvement of an intake duct of the vehicle, and provides an intake air temperature management method, and an intake air temperature management controller and an intake air temperature management system applying the method, and a vehicle using the intake duct of the vehicle and the duct system. The intake air temperature control technique provided by the present invention will be described in detail below.
[ management method, System, and controller ]
First, the present invention provides an intake air temperature management method for a vehicle, which is to determine whether to heat or cool intake air of the vehicle according to an intake air temperature of an engine, and further, in the case of having a turbocharger and an intercooler, may be determined in combination with an intake air temperature of the intercooler. Specifically, the method comprises the steps of receiving at least the engine air inlet temperature of the engine 3, judging the current working condition according to the engine air inlet temperature, when the engine air inlet temperature is smaller than a first temperature threshold value, the current working condition is a low-temperature working condition, when the engine air inlet temperature is larger than a second temperature threshold value, the current working condition is a high-temperature working condition, when the engine air inlet temperature is between the first temperature threshold value and the second temperature threshold value, the current working condition is a normal working condition, when the current working condition is the high-temperature working condition, cooling the air inlet of the vehicle, when the current working condition is the low-temperature working condition, heating the air inlet of the vehicle, and when the current working condition is the normal working condition, the air inlet of the vehicle is not heated or cooled, so that the management of the. Therefore, by controlling the air inlet temperature, the problems of insufficient combustion, carbon deposition of the engine, increased oil consumption and the like caused by overhigh or overlow air inlet temperature can be avoided, and the running reliability and the service life of the engine are improved. Meanwhile, the vehicle maintenance cost caused by the problems is reduced, and the problems to be solved in the prior art of the truck industry are solved.
The method provided by the invention is realized by the intake air temperature management controller provided by the invention, namely the controller 4 comprises a receiving module, a judging module and a control module, wherein the receiving module is used for at least receiving the engine intake air temperature of the engine, the judging module is used for judging the current working condition according to the engine intake air temperature, when the engine intake air temperature is less than a first temperature threshold value, the current working condition is a low-temperature working condition, when the engine intake air temperature is greater than a second temperature threshold value, the current working condition is a high-temperature working condition, when the engine intake air temperature is between the first temperature threshold value and the second temperature threshold value, the current working condition is a normal working condition, when the current working condition is the high-temperature working condition, the control module is used for controlling the cooling of the intake air of the vehicle, when the current working condition is the low-temperature working condition, the control module is, when the current working condition is the conventional working condition, the control module does not control the heating or cooling of the air inlet of the vehicle. Wherein the first and second temperature thresholds and the third and third temperature thresholds described below are preset in the controller 4. The controller 4 may be a stand-alone controller or may be integrated into an ECU control system of the vehicle. And may be used to perform the temperature management methods of the present invention described below.
Further, as shown in fig. 1, the present invention provides a vehicle further including an intercooler 5 and a turbocharger 6, the intercooler 5 being connected between the turbocharger 6 and the engine 3 for cooling intake air flowing therethrough. Thus, the intake air entering from the air intake duct main body 1 of the air intake duct of the vehicle can be filtered by the air filter 102 and then enter the turbocharger 6. The intake air supercharged by the turbocharger 6 is cooled in the intercooler 5. The intercooler 5 has a heat dissipation core for heat dissipation, and is used for air intake and heat dissipation. And the cooling fan 9 may be arranged to be disposed toward the heat dissipation core to increase the cooling effect of the heat dissipation core. The cooled inlet air enters the engine through the air inlet of the oil inlet engine and is referred to combustion work.
The temperature management method further comprises the step of receiving the charge air temperature of the intercooler 5, and controlling whether the charge air temperature of the vehicle is regulated or not. The meaning lies in, on the one hand, intercooler 5 is located the upstream of engine air inlet, and the temperature of perception intercooler 5 air inlet in advance can get into high temperature operating mode or low temperature operating mode earlier, heats or refrigerates the admission more in time promptly to guarantee more effectively that the admission temperature who gets into the engine meets the requirements. On the other hand, intercooler itself also has the operating capability, and the air intake temperature is too high or low enough all can cause the influence to intercooler itself, reduces life, consequently in time gets into high temperature operating mode or low temperature operating mode, can protect the intercooler better.
Specifically, the temperature management method provided by the invention comprises the steps of judging that the current working condition is a low-temperature working condition when the air inlet temperature of the intercooler is smaller than a third temperature threshold value, namely heating the air inlet of the vehicle, judging that the current working condition is a high-temperature working condition when the air inlet temperature of the intercooler is larger than a fourth temperature threshold value, namely refrigerating the air inlet of the vehicle, and judging that the current working condition is a conventional working condition when the air inlet temperature of the intercooler is between the third temperature threshold value and the fourth temperature threshold value. I.e. without heating or cooling the air intake of the vehicle.
Thus, in the method provided by the invention, as long as the engine inlet temperature is less than the first temperature threshold and the intercooler inlet temperature is less than one of the third temperature thresholds, the current working condition can be judged to be the low-temperature working condition, and as long as the engine inlet temperature is greater than the second temperature threshold and the intercooler inlet temperature is greater than one of the fourth temperature thresholds, the current working condition can be judged to be the high-temperature working condition. Otherwise, normal operation. That is, the receiving module of the controller 4 is further configured to receive an intercooler air intake temperature of the intercooler, when the intercooler air intake temperature is less than the third temperature threshold, the determining module determines that the current operating condition is the low-temperature operating condition, when the intercooler air intake temperature is greater than the fourth temperature threshold, the determining module determines that the current operating condition is the high-temperature operating condition, and when the intercooler air intake temperature is between the third temperature threshold and the fourth temperature threshold, the current operating condition is the normal operating condition.
Wherein because intercooler 5 has the heat dissipation core, even the heat-sinking capability that does not work also can play certain can, consequently the intake air temperature through intercooler 5 reduces certainly. As such, the first temperature threshold may be lower than the third temperature threshold, and the second temperature threshold may be lower than the fourth temperature threshold. In addition, when the four temperature thresholds are preset, in order to avoid conflict of control logic, for example, when the intake air temperature of the intercooler is greater than the fourth temperature threshold, the intake air temperature of the engine is less than the first temperature threshold through the cooling effect of the intercooler 5, and at this time, the controller 4 cannot judge the current working condition, so that the four thresholds can be set, and the difference between the fourth temperature threshold and the first temperature threshold is set to be less than the cooling capacity of the intercooler. Therefore, the control logic conflict can be avoided, so that the control system provided by the invention can operate correctly, and the control error is avoided. Wherein the cooling capacity of the intercooler 5 can be obtained according to its own design capacity or obtained according to experiments.
In addition, further, in the intake air temperature management method provided by the invention, under a high-temperature working condition, the intercooler 5 is enabled to work, that is, the cooling fan 9 is started to blow cooling air towards the heat dissipation core body. And under the low-temperature working condition and the normal working condition, the intercooler 5 can be made not to work, namely the cooling fan 9 does not work. In this way, energy can be saved and the object of the invention is better achieved. I.e. the control module in the controller 4 is also used to control the charge air cooler 5. Specifically, when the high temperature operating mode, control module is used for controlling intercooler 5 to work, and when low temperature operating mode and conventional operating mode, control module is used for controlling intercooler 5 not to work.
In order to complete the above method provided by the present invention in cooperation with the controller 4, the intake air temperature management system of the vehicle further comprises an engine temperature detection device 7 for detecting the engine intake air temperature and electrically connected to the receiving module of the controller, an intercooler temperature detection device 8 for detecting the intercooler intake air temperature and electrically connected to the receiving module of the controller, and in addition, in order to control the operation of the intercooler 5, a cooling fan 9 disposed toward the heat dissipation core of the intercooler 5 is also used as a part of the temperature management system provided by the present invention, i.e., the cooling fan 9 is electrically connected to the control module of the controller 4, and in addition, in order to realize the heating or cooling of the intake air. The intake air temperature management system should also include a thermostat 2 for heating or cooling intake air of the vehicle and electrically connected with a control module of the controller.
Specifically, as shown in fig. 1, in order to ensure the operation of the system, the intake air temperature management system further includes a storage battery 101 to supply power to the cooling fan 9, the temperature adjustment device 2, and the controller 4 through power lines, respectively, and in addition, a relay switch 100 may be provided between the storage battery 101 and the temperature adjustment device 2, the relay switch 100 being controlled by the controller 4, and the controller 4 may control the heating or cooling of the temperature adjustment device 2 through a temperature control circuit. In fig. 1, different types of connection lines in the individual components are represented in different meanings, wherein the solid lines represent the inlet lines, the dashed lines represent the control lines, and the dashed lines represent the supply lines. For example, in operation, the controller 4 may generate a power-on signal to the relay switch 100 through a control line, and the relay switch 100 may turn on a power supply line between the battery 101 and the thermostat 2 to electrically operate the thermostat 2.
In addition, in order to accurately detect the intake air temperature of the engine and the intercooler, an engine intake air temperature detection device 7 is provided at the engine intake port, and an intercooler intake air temperature detection device 8 is provided at the intercooler intake port. In addition, in other possible embodiments, the engine intake air temperature detection device 7 may also be provided at the intercooler air outlet.
[ air intake duct for vehicle ]
The control strategy provided by the present invention has been described with emphasis on the following description of the technique for achieving heating and cooling of the vehicle intake air.
The invention innovatively improves the air inlet channel of the vehicle, so that the temperature of the air inlet of the vehicle can be adjusted. Specifically, the invention provides that the intake air temperature management system further comprises a vehicle intake duct for introducing intake air of the vehicle, the intake duct comprising a main intake duct body 1, and a temperature adjusting device 2 is provided in the main intake duct body 1. Therefore, the space of the vehicle air inlet channel can be better utilized to regulate the temperature of the air inlet of the vehicle, the air inlet temperature regulation effect is good, the cost is low, the implementation performance is good, and the cost is low.
Further, in order to achieve temperature regulation of intake air heating or cooling, in a preferred embodiment of the present invention, the temperature regulation device 2 includes a peltier heating and cooling module that heats and cools using the peltier effect, and has cold and hot ends that are oppositely disposed and interchangeable. Thus, the present invention innovatively utilizes the peltier effect and uses electronic principles in conjunction with a temperature management system to provide a controllable temperature management system. The technology does not need any refrigerant and heating wires, can continuously work and has no pollution. The working process has no vibration and noise, and can realize accurate temperature control. The invention innovatively controls the air inlet temperature through intelligent logic in the air inlet temperature management system of the vehicle for the first time, thereby greatly enhancing the performance of the air inlet system. The problems of insufficient combustion, carbon deposition of the engine, increased oil consumption and the like caused by overhigh or overlow inlet temperature are avoided, and the running reliability and the service life of the engine are improved. Meanwhile, the vehicle maintenance cost caused by the problems is reduced. And solves the problem to be solved in the prior art of the vehicle industry, particularly the truck industry.
As shown in fig. 3, the peltier heating and cooling module is a well-known component in the art, and is composed of a P-type semiconductor 203, an N-type semiconductor 204, a metal conductor 202, an insulating ceramic 201, and a wire. After the direct current power supply is switched on to form a complete circuit, a pair of thermocouples is formed by the P-type semiconductor 203 and the N-type semiconductor 204. The N-type semiconductor 204 has excess electrons and a negative temperature difference potential, and the P-type semiconductor 203 has insufficient electrons and a positive temperature difference potential. As electrons travel from P-type semiconductor 203 through the junction to N-type semiconductor 204, the temperature of the junction decreases, which forms a cold end. Conversely, when electrons flow from the N-type semiconductor 204 to the P-type semiconductor 203, the junction temperature increases, which is the hot side. This phenomenon of electron cooling and heating, i.e., thermoelectric effect, is also known as the peltier effect. Therefore, by adjusting the direction of the current, the exchange between the cold end and the hot end can be realized.
In other words, the insulating ceramics 201 at the upper and lower sides in fig. 3 are formed as a hot end and a cold end, respectively, so as to heat or cool the intake air entering the intake duct main body 1. To control the exchange between the cold side and the hot side, the controller 4 may adjust the direction of the current by controlling the current with the temperature as described above, which is well known to those skilled in the art and will not be described in detail herein.
As shown in fig. 2, in order to cooperate with the operation of the peltier heating and cooling module, preferably, the air inlet duct body 1 is partitioned into a main air inlet chamber 11 and a temperature control chamber 12 by the peltier heating and cooling module, the cold end and the hot end selectively face the main air inlet chamber 11 and the temperature control chamber 12, the main air inlet chamber 11 is used for inlet air to flow toward the engine, the temperature control chamber 12 has a first air inlet 121 and a first air outlet 122 that are communicated with each other, and an exhaust device 123 is disposed between the first air inlet 121 and the first air outlet 122, that is, air flow with flow in the temperature control chamber 12 is realized.
The temperature control cavity 12 is arranged, because the heating or refrigerating effect of the side of the Peltier heating and refrigerating assembly, which is back to the main air inlet cavity 11, is useless for vehicle air inlet when the Peltier heating and refrigerating assembly works, and in order to avoid the problem of overheating or supercooling of the side, the temperature control cavity 12 and the air flow circulating in the temperature control cavity are adopted to lead out the heat, so that the working stability and the safety of the whole vehicle air inlet channel are better ensured. In addition, due to the existence of the temperature control cavity 12, the Peltier heating and refrigerating assembly can be prevented from being exposed to the air, so that the service life of the temperature control device 2 is longer and the damage is avoided. In other possible embodiments, other structures may be used to protect the side of the temperature control device 2 facing away from the primary air intake chamber.
Wherein the gas of the temperature controlled chamber 12 entering from the first gas inlet 121 may carry various impurities, foreign substances, in order to avoid damage to the exhaust device 123, preferably, the temperature controlled chamber 12 includes a heat exchange chamber 124 adjacent to the temperature adjusting device 2, the heat exchange chamber 124 has the first gas outlet 122 described above and the exhaust device 123 is located in the heat exchange chamber 124, and the temperature controlled chamber 12 further includes a foreign substance discharge chamber 125 having a foreign substance discharge port 1251, and a guide structure 126 guiding the foreign substances to move toward the foreign substance discharge port 1251, the guide structure 126 being located between the foreign substance discharge chamber 125 and the heat exchange chamber 124 and simultaneously allowing the gas entering from the first gas outlet 122 to enter the heat exchange chamber 124. That is, the heat exchange chambers 124 are adjacent to the temperature adjustment device 2, and are used for guiding out heat or cold flow generated by the peltier heating and cooling assembly on the side opposite to the primary air inlet chamber 11. Due to the foreign substance discharging chamber 125 and the guiding structure 126, foreign substances in the gas entering from the first gas inlet 121 will enter the foreign substance discharging chamber 125 to be discharged, while cleaner gas can enter the heat exchanging chamber 124. In other possible embodiments, the first air inlet 121 may be provided with a filter element such as a filter screen, and care should be taken to clean the filter screen by backwashing.
In the present embodiment, specifically, the guide structure 126 includes a deflector 1261 and a shielding plate 1262, the deflector 1261 is formed on the top wall of the first air inlet 121 and extends downward toward the foreign object discharge chamber 125, the shielding plate 1262 is formed as a partition between the foreign object discharge chamber 125 and the heat exchange chamber 124 and extends toward the top wall forming the deflector 1261, wherein the tip end of the shielding plate 1262 and the tip end of the deflector 1261 are spaced apart. In this way, impurities and foreign matters in the gas entering from the first gas inlet 121 enter the foreign matter discharging chamber 125 along with the flow guide plate 1261 after impacting the flow guide plate 1261 due to the high density, and are difficult to enter the heat exchange chamber 124 under the shielding effect of the upwardly extending shielding plate 1262, and the gas can enter the heat exchange chamber 124 through the gap between the shielding plate 1262 and the bracket of the flow guide plate 1261 under the negative pressure effect of the exhaust device 123, so as to realize the heat exchange effect. In other possible embodiments, the guide structure 126 may be implemented in a modified form in which only the guide plate 1261 or the like is provided.
To further avoid foreign objects entering the heat exchange chamber, it is preferable that the ends of the shielding plates 1262 are located behind the ends of the guide plates 1261 and staggered with respect to the horizontal plane. Thus, if a foreign object were to enter the heat exchange chamber, it would need to undergo an S-shaped path that bypasses the ends of the baffle 1261 and the shield 1262, thereby further sealing the possibility of the foreign object entering the heat exchange chamber.
In order to prevent the gas from carrying foreign matters into the temperature controlled chamber 12 from the foreign matter discharge port 1251, it is preferable that a check valve 1252 is provided in the foreign matter discharge chamber 125 upstream of the foreign matter discharge port 1251, the check valve 1252 being capable of opening toward the foreign matter discharge port 1251 by the gravity of the foreign matters. Thus, foreign materials can be discharged by opening the check valve 1252 after a certain weight is accumulated by the check valve 1252, and gas cannot enter the temperature-controlled chamber 12 through the check valve. Further, the foreign matter discharge port 1251 is downwardly open and is surrounded by an elastic side wall having a tapered cross section. Thus, foreign materials entering the foreign material discharge port 1251 are not immediately discharged but jammed in the foreign material discharge port 1251, and are not discharged by expanding the foreign material discharge port 1251 against the elastic side wall by gravity until a certain amount is accumulated. Like this, can further guarantee through the foreign matter of blocking up in foreign matter discharge port 1251 that other do not get into temperature control chamber 12 through this foreign matter discharge port 1251 temporarily, the structure is ingenious, and the practicality is strong. Wherein the elastic side wall can be made of high polymer elastic material such as rubber.
In addition, as shown in fig. 1, the first gas inlet 121, the first gas outlet 122 and the foreign matter exhaust port 1251 are formed on the same side of the gas duct body 1, so that the foreign matter exhaust chamber 125 and the heat exchange chamber 124 form an inflection structure with the gas inlet chamber forming the first gas inlet 121, and more preferably, an arc-shaped transition structure at the inflection position to facilitate gas flow. The first air inlet 121 and the foreign matter discharge port 1251 are adjacent to each other, and an arc transition cavity 127 is formed between the foreign matter discharge cavity 125 and the side wall of the air duct main body 1 on the same side to provide an inner wall which is in arc transition from the first air inlet 121 to the foreign matter discharge cavity 125, and a triangular reinforcing cavity 128 is formed between the foreign matter discharge cavity 125 and the heat exchange cavity 124. Similarly, a cavity structure may be formed inside the mounting seat 21 for mounting the temperature adjustment device 2, so as to reduce weight.
In addition, in order to avoid rainwater and impurities from entering the temperature controlled chamber 12 from the first air inlet 121, it is preferable that the first air inlet 121 be opened to extend obliquely downward. That is, the first air inlet 121 extends downward to prevent rainwater or large foreign matters from entering the first air inlet.
The characteristics of the temperature-controlled chamber 12 are described above, and the characteristics of the primary air intake chamber 11 are described in detail below.
As shown in fig. 1, the primary intake chamber 11 is formed in an inflected structure having the second intake port 111, and the temperature adjusting device 2 is located on an outer inner wall of the inflected position of the inflected structure. Like this, get into back at the effect of inertia from second air inlet 111 at the vehicle and admit air, can directly strike the outside inner wall of inflection position to increase the contact volume of vehicle air admission and temperature regulation apparatus 2, thereby promote the heating or the refrigeration effect of admitting air more effectively.
In addition, similarly to the first air inlet 121, in order to avoid the second air inlet 111 from being invaded by rainwater or large sundries, it is preferable that the second air inlet 111 is opened to extend obliquely downward. Furthermore, in order to better guide the movement of the intake air toward the thermostat 2, it is preferable that a plurality of air guide grills 12 are provided on the side walls of the inflection structure adjacent to the second intake port 111, the plurality of air guide grills 12 being arranged in parallel and spaced apart from each other and extending toward the inflection positions, respectively. It is thereby possible to guide the intake air of the vehicle toward the thermostat 2, increasing the heating and cooling effects of the intake air.
In order to allow smooth inflow of intake air of the vehicle, it is preferable that the primary intake chamber includes a head section 112, a throat section 113, and a neck section 114 which are connected in sequence from the secondary intake port 111, wherein the three kinds of configurations form an inflected structure with the throat portion as an inflected position, like a positional relationship with the head, throat, and neck of the human body, and the throat section 113 is located at the inflected position and has an arc-shaped transition structure, thereby facilitating smooth inflow of gas. In addition, further, in order to prevent impurities in the vehicle intake air from entering the engine system, it is preferable that the side wall of the neck section 114 near the thermostat 2 is provided with a foreign matter adsorption plate 13. In this way, the intake air passing through the surface of the temperature control device 2 can be brought into contact with the foreign substance adsorption plate 13 by inertia, and thus the foreign substances can be more efficiently adsorbed and captured. The foreign substance adsorption plate may be made of a material having an adsorption ability, such as a sponge, a fine mesh, or the like. Thereby relieving the burden on the subsequent air filter 102.
In summary, the air inlet duct and intake air temperature management system and method of the vehicle provided by the invention innovatively utilize the peltier effect, and provide a controllable temperature management system by using an electronic principle in cooperation with a temperature management device. The principle does not need any refrigerant and heating wires, can continuously work and has no pollution. The working process has no vibration and noise, and can realize accurate temperature control. The principle is innovatively applied to a vehicle air inlet temperature management system for the first time, the air inlet temperature can be controlled through intelligent logic, and the performance of an air inlet system is greatly enhanced. The problems of insufficient combustion, carbon deposition of the engine, increased oil consumption and the like caused by overhigh or overlow inlet temperature are avoided, and the running reliability and the service life of the engine are improved. Meanwhile, the vehicle maintenance cost caused by the problems is reduced. The problem to be solved in the prior art of the vehicle industry, especially the truck industry, is solved, and the method has high practicability and popularization value.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (13)
1. An intake air temperature management system for a vehicle, said vehicle comprising an engine (3), characterized in that the system comprises
A controller (4), the controller (4) comprising a receiving module for receiving at least an engine intake air temperature of the engine, a judging module for judging a current working condition according to the engine intake air temperature, when the engine intake air temperature is less than a first temperature threshold, the current working condition is a low temperature working condition, when the engine intake air temperature is greater than a second temperature threshold, the current working condition is a high temperature working condition, when the engine intake air temperature is between the first temperature threshold and the second temperature threshold, the current working condition is a normal working condition, a control module, when the current working condition is the high temperature working condition, the control module is used for controlling cooling intake air of the vehicle, when the current working condition is the low temperature working condition, the control module is used for controlling heating intake air of the vehicle, when the current working condition is the conventional working condition, the control module does not control the heating or cooling of the air inlet of the vehicle,
an engine temperature detection device (7) for detecting the engine intake air temperature and electrically connected to the receiving module of the controller,
a thermostat (2) for heating or cooling intake air of the vehicle and electrically connected with the control module of the controller, the thermostat (2) including a Peltier heating and cooling module for heating and cooling by the Peltier effect, the Peltier heating and cooling module having oppositely disposed and interchangeable cold and hot ends,
a vehicle air intake duct for introducing the intake air, the vehicle air intake duct comprising an air intake main body (1), the temperature adjustment device (2) being provided in the air intake main body (1),
the air inlet channel body (1) is internally provided with a main air inlet cavity (11) and a temperature control cavity (12) through a Peltier heating and refrigerating component, the cold end and the hot end selectively face the main air inlet cavity (11) and the temperature control cavity (12) respectively, the main air inlet cavity (11) is used for flowing of inlet air, the temperature control cavity (12) is provided with a first air inlet (121) and a first air outlet (122) which are communicated with each other, and an exhaust device (123) is arranged between the first air inlet (121) and the first air outlet (122).
2. The intake air temperature management system according to claim 1, wherein the temperature control chamber (12) includes a heat exchange chamber (124) adjacent to the temperature adjustment device (2), the heat exchange chamber (124) having the first air outlet (122) and the air exhaust device (123) being located inside the heat exchange chamber (124), wherein the temperature control chamber (12) further includes an exhaust chamber (125) having an exhaust port (1251), and a guide structure (126) guiding the movement of the foreign matter toward the exhaust port (124), the guide structure (126) being located between the exhaust chamber (125) and the heat exchange chamber (124) and simultaneously allowing the gas entering from the first air outlet (122) to enter the heat exchange chamber (124).
3. The intake air temperature management system of claim 2, wherein the guide structure (126) includes a deflector (1261) and a baffle (1262), the deflector (1261) being formed on a top wall of the first intake opening (121) and extending downwardly toward the foreign object discharge chamber (125), the baffle (1262) being formed as a partition between the foreign object discharge chamber (125) and the heat exchange chamber (124) and extending toward the top wall forming the deflector (1261), wherein a distal end of the baffle (1262) and a distal end of the deflector (1261) are spaced apart.
4. The intake air temperature management system of claim 3, wherein the ends of the baffle plates (1262) are located rearward of the ends of the baffle plates (1261) and are staggered with respect to a horizontal plane.
5. The intake air temperature management system according to claim 2, wherein a check valve (1252) is provided in the foreign matter discharge chamber (125) upstream of the foreign matter discharge port (1251), the check valve (1252) being openable toward the foreign matter discharge port (1251) by a weight of the foreign matter.
6. The intake air temperature management system of claim 2, wherein the foreign matter exhaust port (1251) is downwardly open and is surrounded by a resilient sidewall having a tapered cross-section.
7. The intake air temperature management system according to claim 1, wherein the first intake port (121) is opened extending obliquely downward.
8. The intake air temperature management system according to claim 1, wherein the primary intake chamber (11) is formed as an inflected structure having the second intake port (111), and the thermostat (2) is located on an outer inner wall of the inflected position of the inflected structure.
9. The intake air temperature management system according to claim 8, wherein the second intake port (111) opens obliquely extending downward.
10. The intake air temperature management system according to claim 8, wherein a plurality of air guide grilles (12) are provided on a side wall of the inflection structure adjacent to the second intake port (111), the plurality of air guide grilles (12) being arranged in parallel and spaced apart from each other and extending toward the inflection position, respectively.
11. The intake air temperature management system of claim 8, wherein the primary intake chamber includes a head section (112), a throat section (113), and a neck section (114) connected in series from the second intake port (111), the throat section (113) being located at the inflection point and having an arcuate transition.
12. The intake air temperature management system according to claim 11, characterized in that a foreign matter adsorption plate (13) is provided on a side wall of the neck section (114) near the thermostat (2).
13. A vehicle, characterized in that it comprises an intake air temperature management system according to any one of claims 1-12.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510512929.7A CN106704015B (en) | 2015-08-19 | 2015-08-19 | Vehicle and air inlet temperature management controller, system and method thereof |
| BR112018003011-2A BR112018003011B1 (en) | 2015-08-19 | 2016-07-18 | VEHICLE AIR INLET, VEHICLE AND INLET AIR TEMPERATURE MANAGEMENT SYSTEM |
| RU2018104251A RU2680182C1 (en) | 2015-08-19 | 2016-07-18 | Vehicle air intake, vehicle and system for regulating temperature of incoming air |
| PCT/CN2016/090341 WO2017028647A1 (en) | 2015-08-19 | 2016-07-18 | Vehicle and intake air temperature management controller, system, method and vehicle air inlet thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510512929.7A CN106704015B (en) | 2015-08-19 | 2015-08-19 | Vehicle and air inlet temperature management controller, system and method thereof |
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| CN106704015A CN106704015A (en) | 2017-05-24 |
| CN106704015B true CN106704015B (en) | 2019-12-20 |
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| CN201510512929.7A Active CN106704015B (en) | 2015-08-19 | 2015-08-19 | Vehicle and air inlet temperature management controller, system and method thereof |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108644040B (en) * | 2018-04-19 | 2020-05-19 | 浙江吉利控股集团有限公司 | Engine air inlet temperature control method, engine air inlet temperature control system and automobile |
| CN111140338B (en) * | 2019-12-02 | 2021-01-15 | 潍柴动力股份有限公司 | Engine protection method and system based on air inlet temperature |
| CN111219242B (en) * | 2020-01-21 | 2020-12-25 | 常熟理工学院 | Device for supercharging automobile engine by utilizing intake air internal circulation air and control method |
| CN114278447B (en) * | 2021-12-16 | 2023-03-24 | 潍柴动力股份有限公司 | Engine control method and device and engine controller |
| CN114810333B (en) * | 2022-05-17 | 2023-07-18 | 潍柴动力股份有限公司 | Control method and control system of air inlet intercooler of engine |
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Address after: 102206 North of Laoniuwan Village, Shayang Road, Shahe Town, Changping District, Beijing Applicant after: Beiqi Futian Automobile Co., Ltd. Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Applicant before: Beiqi Futian Automobile Co., Ltd. |
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