JP2005112186A - Cooling apparatus for vehicle - Google Patents

Cooling apparatus for vehicle Download PDF

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JP2005112186A
JP2005112186A JP2003349705A JP2003349705A JP2005112186A JP 2005112186 A JP2005112186 A JP 2005112186A JP 2003349705 A JP2003349705 A JP 2003349705A JP 2003349705 A JP2003349705 A JP 2003349705A JP 2005112186 A JP2005112186 A JP 2005112186A
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air
heat exchanger
flowing
air volume
predetermined
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Koichi Harada
幸一 原田
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Denso Corp
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Denso Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To fully show the capability of a cooling apparatus for a vehicle by effectively utilizing a traveling wind. <P>SOLUTION: A wind ratio adjusting guide 6 is provided in order to adjust the ratio of the traveling wind flowing on the side of a condenser 4 and a radiator 2 to the traveling wind flowing on the side of an intercooler 3. When the vehicle is running at a high speed at which the vehicle speed V is higher than a specified speed V1 and when the engine load is large outputting an acceleration signal A, the traveling wind flowing on the side of the intercooler 3 is increased than before. When the temperature of the cooling water of the engine has risen, the traveling wind flowing on the side of the radiator 2 is increased than before. In addition, when an air-conditioning load has increased by a rise in the pressure in the condenser 4, the traveling wind flowing on the side of the condenser 4 is increased than before. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、複数種類の熱交換器からなる車両用冷却装置に関するものである。   The present invention relates to a vehicular cooling device including a plurality of types of heat exchangers.

走行用のエンジン(内燃機関)内を循環したエンジン冷却水と空気とを熱交換するラジエータ、およびエンジンに供給される燃焼用の空気を冷却するインタークーラが冷却風の流れに対して並列に配置された従来の車両用冷却装置では、ラジエータの空気流れ下流側に配置された送風機とラジエータおよびインタークーラとの隙間をシュラウドにて覆って、ラジエータおよびインタークーラから送風機に至るエアダクト構造を構成するとともに、エンジン冷却水の温度に応じてインタークーラから送風機に至る冷却風の通路を遮断弁にて開閉している(例えば、特許文献1参照)。   A radiator that exchanges heat between the engine coolant and air that circulates in the traveling engine (internal combustion engine) and an intercooler that cools the combustion air supplied to the engine are arranged in parallel to the flow of cooling air In the conventional vehicular cooling device, the gap between the blower arranged on the downstream side of the air flow of the radiator, the radiator and the intercooler is covered with a shroud, and the air duct structure extending from the radiator and the intercooler to the blower is configured. The passage of the cooling air from the intercooler to the blower is opened and closed by a shutoff valve in accordance with the temperature of the engine cooling water (see, for example, Patent Document 1).

つまり、特許文献1に記載の発明では、送風機にて送風される送風量のうちラジエータに送風される送風量とインタークーラに送風される送風量との風量割合をエンジン冷却水の温度に応じて最適化している。
実開平2−54325号公報
That is, in the invention described in Patent Document 1, the air volume ratio between the air volume blown to the radiator and the air volume blown to the intercooler in the air volume blown by the blower is set according to the temperature of the engine cooling water. Optimized.
Japanese Utility Model Publication No. 2-54325

しかし、車両用冷却装置に供給される冷却風の多くは、車両の走行に伴って発生する走行風であるので、車両用冷却装置にて効果的に冷却能力を発揮させるには、走行風を効果的に活用することが望ましい。   However, since most of the cooling air supplied to the vehicle cooling device is traveling air generated as the vehicle travels, in order for the vehicle cooling device to exert its cooling capacity effectively, It is desirable to use it effectively.

これに対して、特許文献1に記載の発明では、送風機にて送風される冷却風の分配比を最適化しているので、車両用冷却装置に供給される冷却風の多くを占める走行風を有効に活用して車両用冷却装置の冷却能力を十分に発揮することが難しい。   On the other hand, in the invention described in Patent Document 1, since the distribution ratio of the cooling air blown by the blower is optimized, the traveling wind occupying most of the cooling air supplied to the vehicle cooling device is effective. It is difficult to fully utilize the cooling capacity of the vehicle cooling device.

本発明は、上記点に鑑み、第1には、従来と異なる新規な車両用冷却装置提供し、第2には、走行風を効果的に利用して車両用冷却装置の冷却能力を十分に発揮させることを目的とする。   In view of the above points, the present invention firstly provides a novel vehicle cooling device that is different from the conventional one, and secondly, it is possible to effectively use the traveling wind to sufficiently increase the cooling capacity of the vehicle cooling device. The purpose is to demonstrate.

本発明は、上記目的を達成するために、請求項1に記載の発明では、走行風を導入するエアダクト(5)と、エアダクト(5)にて導入される走行風流れに対して並列に配置された第1熱交換器(2、4)および第2熱交換器(3、4)と、エアダクト(5)にて導入される走行風のうち、第1熱交換器(2、4)側に流れる風量と第2熱交換器(3、4)側に流れる風量と風量割合を調節する風量割合調節手段(6)とを有することを特徴とする。   In order to achieve the above object, according to the present invention, the air duct (5) for introducing the traveling wind and the traveling wind flow introduced by the air duct (5) are arranged in parallel. Of the traveling wind introduced by the first heat exchanger (2, 4) and the second heat exchanger (3, 4) and the air duct (5), the first heat exchanger (2, 4) side And an air volume ratio adjusting means (6) for adjusting an air volume ratio and an air volume flowing to the second heat exchanger (3, 4) side.

これにより、エアダクト(5)にて導入される走行風のうち、第1熱交換器(2、4)側に流れる風量と第2熱交換器(3、4)側に流れる風量と風量割合を調節する風量割合調節手段(6)を有することとなるので、走行風を効果的に利用して車両用冷却装置の冷却能力を十分に発揮させることができ得る。   As a result, of the traveling wind introduced in the air duct (5), the amount of air flowing to the first heat exchanger (2, 4) side and the amount of air flowing to the second heat exchanger (3, 4) side and the air volume ratio are calculated. Since the air volume ratio adjusting means (6) to be adjusted is provided, the cooling capacity of the vehicle cooling device can be sufficiently exhibited by effectively using the traveling air.

請求項2に記載の発明では、風量割合調節手段(6)は、第1熱交換器(2、4)および第2熱交換器(3、4)の空気流れ上流側に配置されて第1熱交換器(2、4)側に流れる風量と第2熱交換器(3、4)側に流れる風量と風量割合を調節するドア手段により構成されていることを特徴とするものである。   In the second aspect of the present invention, the air volume ratio adjusting means (6) is arranged on the upstream side of the air flow of the first heat exchanger (2, 4) and the second heat exchanger (3, 4), and the first heat exchanger (2, 4). It is comprised by the door means which adjusts the air volume which flows into the heat exchanger (2, 4) side, the air volume which flows into the 2nd heat exchanger (3, 4) side, and an air volume ratio.

請求項3に記載の発明では、第1熱交換器(2)は、走行用駆動源をなす内燃機関を冷却するラジエータであり、第2熱交換器(3)は、内燃機関に供給する燃焼用の空気を冷却するインタークーラであり、風量割合調節手段(6)は、内燃機関の温度が所定温度より高いときは、第1熱交換器(2)側に流れる風量を、内燃機関の温度が所定温度以下のときに第1熱交換器(2)側に流れる風量に比べて増大させ、さらに、風量割合調節手段(6)は、内燃機関の負荷が所定負荷より大きいときは、第2熱交換器(3)側に流れる風量を、内燃機関の負荷が所定負荷以下のときに第2熱交換器(3)側に流れる風量に比べて増大させることを特徴とする。   In the invention according to claim 3, the first heat exchanger (2) is a radiator that cools the internal combustion engine that is a driving source for traveling, and the second heat exchanger (3) is a combustion that is supplied to the internal combustion engine. The air volume ratio adjusting means (6) is configured to reduce the volume of air flowing to the first heat exchanger (2) side when the temperature of the internal combustion engine is higher than a predetermined temperature. Is increased compared to the amount of air flowing to the first heat exchanger (2) when the temperature is equal to or lower than the predetermined temperature, and the air volume ratio adjusting means (6) The amount of air flowing to the heat exchanger (3) side is increased compared to the amount of air flowing to the second heat exchanger (3) side when the load of the internal combustion engine is equal to or less than a predetermined load.

これにより、第1熱交換器(2)、つまりラジエータの冷却能力を十分に発揮させることができるとともに、第2熱交換器(3)、つまりインタークーラの冷却能力を十分に発揮させることができる。   Thereby, while being able to fully exhibit the cooling capacity of the 1st heat exchanger (2), ie, a radiator, the cooling capacity of the 2nd heat exchanger (3), ie, an intercooler, can fully be exhibited. .

請求項4に記載の発明では、第1熱交換器(4)は、車両用空調装置の放熱用の室外熱交換器であり、第2熱交換器(3)は、走行用駆動源をなす内燃機関に供給する燃焼用の空気を冷却するインタークーラであり、風量割合調節手段(6)は、車両用空調装置の空調負荷が所定空調負荷より大きいときは、第1熱交換器(4)側に流れる風量を、車両用空調装置の空調負荷が所定空調負荷が所定空調負荷以下のときに第1熱交換器(4)側に流れる風量に比べて増大させ、さらに、風量割合調節手段(6)は、内燃機関の負荷が所定負荷より大きいときは、第2熱交換器(3)側に流れる風量を、内燃機関の負荷が所定負荷以下のときに第2熱交換器(3)側に流れる風量に比べて増大させることを特徴とする。   In the invention according to claim 4, the first heat exchanger (4) is an outdoor heat exchanger for heat radiation of the vehicle air conditioner, and the second heat exchanger (3) serves as a driving source for traveling. It is an intercooler that cools the combustion air supplied to the internal combustion engine, and the air volume ratio adjusting means (6) is configured such that when the air conditioning load of the vehicle air conditioner is larger than the predetermined air conditioning load, the first heat exchanger (4) The air volume flowing to the side is increased as compared with the air volume flowing to the first heat exchanger (4) when the air conditioning load of the vehicle air conditioner is equal to or less than the predetermined air conditioning load, and the air volume ratio adjusting means ( 6) When the load of the internal combustion engine is larger than the predetermined load, the amount of air flowing to the second heat exchanger (3) side is set to the second heat exchanger (3) side when the load of the internal combustion engine is equal to or lower than the predetermined load. It is characterized by an increase compared to the amount of air flowing through

これにより、第1熱交換器(4)、つまり室外熱交換器の冷却能力を十分に発揮させることができるとともに、第2熱交換器(3)、つまりインタークーラの冷却能力を十分に発揮させることができる。   Thereby, while being able to fully exhibit the cooling capacity of a 1st heat exchanger (4), ie, an outdoor heat exchanger, fully exhibit the cooling capacity of a 2nd heat exchanger (3), ie, an intercooler. be able to.

請求項5に記載の発明では、第1熱交換器(2)は、走行用駆動源をなす内燃機関を冷却するラジエータであり、第2熱交換器(4)は、車両用空調装置の放熱用の室外熱交換器であり、風量割合調節手段(6)は、内燃機関の温度が所定温度より高いときは、第1熱交換器(2)側に流れる風量を、内燃機関の温度が所定温度以下のときに第1熱交換器(2)側に流れる風量に比べて増大させ、さらに、風量割合調節手段(6)は、車両用空調装置の空調負荷が所定空調負荷より大きいときは、第2熱交換器(4)側に流れる風量を、車両用空調装置の空調負荷が所定空調負荷が所定空調負荷以下のときに第2熱交換器(4)側に流れる風量に比べて増大させることを特徴とする。   In the invention described in claim 5, the first heat exchanger (2) is a radiator that cools the internal combustion engine that is a driving source for traveling, and the second heat exchanger (4) is a heat dissipation of the vehicle air conditioner. When the temperature of the internal combustion engine is higher than a predetermined temperature, the air volume ratio adjusting means (6) is configured to determine the amount of air flowing to the first heat exchanger (2) side when the temperature of the internal combustion engine is predetermined. The air volume ratio adjusting means (6) increases when compared with the air volume flowing to the first heat exchanger (2) when the temperature is equal to or lower than the temperature. The amount of air flowing to the second heat exchanger (4) side is increased compared to the amount of air flowing to the second heat exchanger (4) side when the air conditioning load of the vehicle air conditioner is equal to or less than the predetermined air conditioning load. It is characterized by that.

これにより、第1熱交換器(2)、つまりラジエータの冷却能力を十分に発揮させることができるとともに、第2熱交換器(4)、つまり室外熱交換器の冷却能力を十分に発揮させることができる。   Accordingly, the cooling capacity of the first heat exchanger (2), that is, the radiator can be sufficiently exhibited, and the cooling capacity of the second heat exchanger (4), that is, the outdoor heat exchanger can be sufficiently exhibited. Can do.

因みに、上記各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示す一例である。   Incidentally, the reference numerals in parentheses of each means described above are an example showing the correspondence with the specific means described in the embodiments described later.

(第1実施形態)
図1は本実施形態に係る車両用冷却装置1を鉛直方向から見た模式図である。
(First embodiment)
FIG. 1 is a schematic view of a vehicular cooling device 1 according to the present embodiment viewed from the vertical direction.

図1中、ラジエータ2は、走行用駆動源をなす内燃機関(エンジン)内を循環したエンジン冷却水と空気とを熱交換する熱交換器であり、インタークーラ3は、エンジンに供給される燃焼用の空気を冷却する熱交換器であり、コンデンサ4は車両用空調装置(車両用蒸気圧縮式冷凍機)の放熱用の室外熱交換器である。   In FIG. 1, a radiator 2 is a heat exchanger that exchanges heat between engine coolant and air circulated in an internal combustion engine (engine) that is a driving source for traveling, and an intercooler 3 is a combustion supplied to the engine. The condenser 4 is an outdoor heat exchanger for radiating heat of a vehicle air conditioner (vehicle vapor compression refrigerator).

そして、ラジエータ2とコンデンサ4とは、コンデンサ4がラジエータ2より走行風流れ上流側に位置するように走行風の流れに対して直列に配置され、インタークーラ3は、走行風に対してラジエータ2およびコンデンサ4に対して並列となるように配置されている。   The radiator 2 and the condenser 4 are arranged in series with respect to the flow of the traveling wind so that the capacitor 4 is positioned upstream of the traveling wind flow from the radiator 2, and the intercooler 3 is connected to the radiator 2 with respect to the traveling wind. In addition, they are arranged in parallel with the capacitor 4.

なお、本実施形態では、コンデンサ4およびインタークーラ3は、車両前方側から見て、コンデンサ4とインタークーラ3とが水平方向に並ぶように走行風流れに対して並列に配置されている。   In the present embodiment, the condenser 4 and the intercooler 3 are arranged in parallel with the traveling wind flow so that the condenser 4 and the intercooler 3 are arranged in the horizontal direction when viewed from the front side of the vehicle.

エアダクト5は、車両の前端側に設けられた空気取込口(図示せず。)から取り込まれた走行風をラジエータ2、コンデンサ4およびインタークーラ3に導く走行風導入ダクトである。なお、本実施形態では、樹脂にてエアダクト5を構成しているが、冷間圧延鋼板等の金属にて構成してもよいことは言うまでもない。   The air duct 5 is a traveling wind introduction duct that guides traveling wind taken from an air intake (not shown) provided on the front end side of the vehicle to the radiator 2, the condenser 4, and the intercooler 3. In addition, in this embodiment, although the air duct 5 is comprised with resin, it cannot be overemphasized that you may comprise with metals, such as a cold-rolled steel plate.

また、エアダクト5内のうちラジエータ2、コンデンサ4およびインタークーラ3の走行風流れ上流側には、コンデンサ4(ラジエータ2)側に流れる走行風量とインタークーラ3側に流れる走行風量との風量割合を調節する風量割合調節ガイド6が設けられている。   Further, in the air duct 5, on the upstream side of the traveling airflow of the radiator 2, the condenser 4 and the intercooler 3, the air volume ratio between the traveling airflow flowing on the condenser 4 (radiator 2) side and the traveling airflow flowing on the intercooler 3 side is expressed. An air volume ratio adjustment guide 6 for adjustment is provided.

そして、本実施形態に係る風量割合調節ガイド6は、コンデンサ4とインタークーラ3との間の部位を揺動中心軸としてコンデンサ4側とインタークーラ3側との間を揺動することにより、コンデンサ4(ラジエータ2)側に流れる走行風量とインタークーラ3側に流れる走行風量との風量割合を調節する。   The air volume ratio adjusting guide 6 according to the present embodiment swings between the condenser 4 side and the intercooler 3 side with the portion between the condenser 4 and the intercooler 3 as the pivot center axis. 4 adjusts the air volume ratio between the travel airflow flowing to the 4 (radiator 2) side and the travel airflow flowing to the intercooler 3 side.

また、風量割合調節ガイド6を揺動させるアクチュエータ(図示せず。)として、本実施形態では、エンジンの吸入負圧とねじりコイルバネ等の弾性手段(図示せず。)との釣り合いを利用して稼動するものを採用しており、このアクチュエータ、つまりエンジンの吸入負圧を制御するバルブ(図示せず。)の開度は、電子制御装置(図示せず。)により制御されている。   Further, as an actuator (not shown) for swinging the air volume ratio adjusting guide 6, in this embodiment, a balance between the suction negative pressure of the engine and elastic means (not shown) such as a torsion coil spring is used. An operating one is adopted, and the opening degree of this actuator, that is, a valve (not shown) for controlling the intake negative pressure of the engine is controlled by an electronic control unit (not shown).

そして、電子制御装置には、エンジン冷却水の温度を検出する温度センサ(図示せず。)の検出温度、車両用空調装置(蒸気圧縮式冷凍機)の高圧側圧力、つまりコンデンサ4内の圧力を検出する圧力センサ(図示せず。)、エンジンの負荷を検出するエンジン負荷検出センサの検出値、および車両速度を検出する車速センサ(図示せず。)検出値等が入力されており、電子制御装置は、これらの検出値に基づいて電子制御装置に記憶されたプログラムに従って風量割合調節ガイド6、つまりエンジンの吸入負圧を制御するバルブを制御する。   The electronic control unit includes a temperature detected by a temperature sensor (not shown) that detects the temperature of engine cooling water, a high-pressure side pressure of the vehicle air conditioner (vapor compression refrigerator), that is, a pressure in the condenser 4. The pressure sensor (not shown) for detecting the engine load, the detection value of the engine load detection sensor for detecting the engine load, the detection value of the vehicle speed sensor (not shown) for detecting the vehicle speed, etc. are input. Based on these detected values, the control device controls the air volume ratio adjustment guide 6, that is, the valve that controls the intake negative pressure of the engine, according to the program stored in the electronic control device.

つまり、本実施形態では、風量割合調節ガイド6、電子制御装置、バルブ、温度センサ、圧力センサ、エンジン負荷検出センサおよび車速センサ等により、特許請求の範囲に記載された風量割合調節手段が構成されている。   In other words, in this embodiment, the air volume ratio adjusting guide 6, the electronic control device, the valve, the temperature sensor, the pressure sensor, the engine load detection sensor, the vehicle speed sensor, and the like constitute the air volume ratio adjusting means described in the claims. ing.

なお、本実施形態では、エンジンの吸入負圧の大きさ、またはスロットルバルブの開度に基づいてエンジンの負荷を検出しており、本実施形態に係るエンジン負荷検出センサは、エンジンの吸入負圧の絶対値が所定値以下となったとき、またはスロットルバルブの開度が所定値以上となったとき、つまりエンジン負荷が所定値以上となたっときに加速信号Aを電子制御装置に出力する。   In the present embodiment, the engine load is detected based on the magnitude of the engine suction negative pressure or the opening of the throttle valve, and the engine load detection sensor according to the present embodiment detects the engine suction negative pressure. The acceleration signal A is output to the electronic control unit when the absolute value of is less than or equal to a predetermined value, or when the opening of the throttle valve exceeds a predetermined value, that is, when the engine load exceeds a predetermined value.

また、ラジエータ2の走行風流れ下流側には、ラジエータ2およびコンデンサ4に冷却風を送風する送風機7が配置されているとともに、送風機7とラジエータ2との隙間を覆ってラジエータ2から送風機7に至るダクトを構成して送風機7にて誘起された冷却風がラジエータ2およびコンデンサ4を迂回して流れることを防止するシュラウド8が設けられている。   A blower 7 for blowing cooling air to the radiator 2 and the condenser 4 is disposed on the downstream side of the running wind flow of the radiator 2, and the gap between the blower 7 and the radiator 2 is covered to the blower 7 from the radiator 2. A shroud 8 is provided to prevent the cooling air induced by the blower 7 from flowing around the radiator 2 and the condenser 4 by forming a duct to reach the duct.

次に、本実施形態に係る車両用冷却装置の制御作動、つまり風量割合調節ガイド6の制御について述べる。   Next, the control operation of the vehicle cooling device according to the present embodiment, that is, the control of the air volume ratio adjusting guide 6 will be described.

本実施形態では、電子制御装置は、概略以下の3種の作動制御を行う。   In the present embodiment, the electronic control device performs the following three types of operation control.

(1)エンジン冷却水の温度Tが所定温度T1(例えば、100℃)より高くなったときは、ラジエータ2側に流れる風量が、エンジン冷却水の温度Tが所定温度T1以下のときにラジエータ2側に流れていた風量に比べて増大するように風量割合調節ガイド6を揺動させる。   (1) When the temperature T of the engine cooling water is higher than a predetermined temperature T1 (for example, 100 ° C.), the amount of air flowing to the radiator 2 is the radiator 2 when the temperature T of the engine cooling water is equal to or lower than the predetermined temperature T1. The air volume ratio adjusting guide 6 is swung so as to increase compared to the air volume flowing to the side.

(2)コンデンサ4内の圧力Pが所定圧力P1より高くなって車両用空調装置の空調負荷が所定空調負荷より大きくなったときは、コンデンサ4側に流れる風量が、コンデンサ4内の圧力Pが所定圧力P1以下、つまり車両用空調装置の空調負荷が所定空調負荷が所定空調負荷以下のときにコンデンサ4側に流れていた風量に比べて増大するように風量割合調節ガイド6を揺動させる。   (2) When the pressure P in the condenser 4 becomes higher than the predetermined pressure P1 and the air conditioning load of the vehicle air conditioner becomes larger than the predetermined air conditioning load, the amount of air flowing to the condenser 4 side is The air volume ratio adjusting guide 6 is oscillated so that the air pressure load of the vehicle air conditioner is lower than the predetermined pressure P1, that is, the air flow rate flowing to the condenser 4 is increased when the predetermined air conditioning load is equal to or lower than the predetermined air conditioning load.

(3)加速信号Aがエンジン負荷検出センサから発せられたとき、または車両の速度Vが所定速度V1(例えば、100km/h)より大きくなって、エンジンの負荷が所定負荷より大きくなったときは、インタークーラ3側に流れる風量が、エンジンの負荷が所定負荷以下のときにインタークーラ3側に流れていた風量に比べて増大するように風量割合調節ガイド6を揺動させる。   (3) When the acceleration signal A is issued from the engine load detection sensor, or when the vehicle speed V becomes higher than a predetermined speed V1 (for example, 100 km / h) and the engine load becomes higher than the predetermined load. The air volume ratio adjusting guide 6 is swung so that the air volume flowing to the intercooler 3 side increases compared to the air volume flowing to the intercooler 3 side when the engine load is equal to or less than a predetermined load.

なお、図2は上記した電子制御装置の制御作動を示すフローチャートの一例であり、以下、図2に示すフローチャートについて述べる。   FIG. 2 is an example of a flowchart showing the control operation of the electronic control device described above, and the flowchart shown in FIG. 2 will be described below.

図2に示すフローチャートは、エンジンの始動と同時に起動されるもので、先ず、エンジン冷却水の温度Tが所定温度T1より高いか否かを判定する(S1)。   The flowchart shown in FIG. 2 is started simultaneously with the start of the engine. First, it is determined whether or not the temperature T of the engine cooling water is higher than a predetermined temperature T1 (S1).

そして、エンジン冷却水の温度Tが所定温度T1より高い場合には、風量割合調節ガイド6を図1の実線に示す位置(以下、ポジション1と言う。)とし(S2)、エンジン冷却水の温度Tが所定温度T1以下である場合には、コンデンサ4内の圧力Pが所定圧力P1より高いか否かを判定する(S3)。   When the engine cooling water temperature T is higher than the predetermined temperature T1, the air volume ratio adjusting guide 6 is set to the position shown by the solid line in FIG. 1 (hereinafter referred to as position 1) (S2), and the engine cooling water temperature is set. When T is equal to or lower than the predetermined temperature T1, it is determined whether or not the pressure P in the capacitor 4 is higher than the predetermined pressure P1 (S3).

そして、コンデンサ4内の圧力Pが所定圧力P1より高い場合には、風量割合調節ガイド6をポジション1とし(S4)、コンデンサ4内の圧力Pが所定圧力P1以下の場合には、加速信号Aが発生られたか否かを判定する(S5)。   When the pressure P in the capacitor 4 is higher than the predetermined pressure P1, the air volume ratio adjustment guide 6 is set to position 1 (S4). When the pressure P in the capacitor 4 is equal to or lower than the predetermined pressure P1, the acceleration signal A It is determined whether or not has occurred (S5).

そして、加速信号Aが発生られた場合には、風量割合調節ガイド6を図1の破線に示す位置(以下、ポジション2と言う。)とし(S6)、加速信号Aが発生られていない場合には、車両の速度Vが所定速度V1より大きいか否かを判定する(S7)。   When the acceleration signal A is generated, the air volume ratio adjusting guide 6 is set to the position indicated by the broken line in FIG. 1 (hereinafter referred to as position 2) (S6), and the acceleration signal A is not generated. Determines whether the vehicle speed V is greater than the predetermined speed V1 (S7).

そして、車両の速度Vが所定速度V1より大きい場合には、風量割合調節ガイド6をポジション2とし(S8)、車両の速度Vが所定速度V1以下の場合は、風量割合調節ガイド6をポジション1とする(S9)。   When the vehicle speed V is higher than the predetermined speed V1, the air volume ratio adjustment guide 6 is set to position 2 (S8). When the vehicle speed V is equal to or lower than the predetermined speed V1, the air volume ratio adjustment guide 6 is set to position 1. (S9).

次に、本実施形態に係る車両用冷却装置の作用効果を述べる。   Next, the effect of the vehicle cooling device according to the present embodiment will be described.

本実施形態では、コンデンサ4およびラジエータ2側に流れる走行風量とインタークーラ3側に流れる走行風量との風量割合を調節する風量割合調節ガイド6を設けているので、走行風を効果的に利用して車両用冷却装置の冷却能力を十分に発揮させることができ得る。   In the present embodiment, since the air volume ratio adjustment guide 6 for adjusting the air volume ratio between the traveling air volume flowing toward the condenser 4 and the radiator 2 and the traveling air volume flowing toward the intercooler 3 is provided, the traveling air is effectively used. Thus, the cooling capacity of the vehicle cooling device can be sufficiently exhibited.

すなわち、車両の速度Vが所定速度V1より大きくなる高速走行、および加速信号Aが発せられるエンジン負荷が大きくなるときには、インタークーラ3側に流れる走行風量をそれ以前に比べて増大させるので、エンジン負荷が大きくエンジンに供給される燃焼用空気が増大するときに、インタークーラ3の冷却能力を増大させることができ、インタークーラ3の冷却能力を十分に発揮させることができる。   That is, when the vehicle speed V is higher than the predetermined speed V1 and the engine load at which the acceleration signal A is generated increases, the amount of traveling airflow flowing to the intercooler 3 side is increased as compared with the engine load. When the combustion air supplied to the engine increases and the cooling capacity of the intercooler 3 can be increased, the cooling capacity of the intercooler 3 can be fully exhibited.

また、エンジン冷却水の温度が上昇したときには、ラジエータ2側に流れる走行風量をそれ以前に比べて増大させるので、ラジエータ2の冷却能力を十分に発揮させることができる。   Further, when the temperature of the engine cooling water rises, the amount of traveling airflow flowing to the radiator 2 side is increased as compared to before that, so that the cooling capacity of the radiator 2 can be sufficiently exhibited.

また、コンデンサ4内の圧力が上昇して空調負荷が増大したときには、コンデンサ4側に流れる走行風量をそれ以前に比べて増大させるので、コンデンサ4の冷却能力を十分に発揮させることができる。   Further, when the pressure in the condenser 4 rises and the air conditioning load increases, the amount of traveling air flowing to the condenser 4 side is increased as compared to before that, so that the cooling capacity of the condenser 4 can be sufficiently exhibited.

以上に述べたように、本実施形態では、ラジエータ2、インタークーラ3およびコンデンサ4に要求される負荷に応じて走行風の分配割合を最適化するので、走行風を効果的に利用して車両用冷却装置の冷却能力を十分に発揮させることができる。   As described above, in this embodiment, since the distribution ratio of the traveling wind is optimized according to the load required for the radiator 2, the intercooler 3, and the condenser 4, the vehicle can be used by effectively using the traveling wind. The cooling capacity of the cooling device can be fully exhibited.

(第2実施形態)
本実施形態は、図3に示すように、ラジエータ2およびコンデンサ4をエアダクト5にて導入される走行風流れに対して並列に配置したものである。
(Second Embodiment)
In the present embodiment, as shown in FIG. 3, the radiator 2 and the condenser 4 are arranged in parallel to the traveling wind flow introduced by the air duct 5.

そして、エンジン冷却水の温度Tが所定温度T1およびコンデンサ4内の圧力Pに基づいて風量割合調節ガイド6を揺動させて、ラジエータ2側に流れる走行風量とコンデンサ4側に流れる走行風量との割合を調節する。   Then, the air flow rate adjustment guide 6 is swung based on the temperature T of the engine cooling water based on the predetermined temperature T1 and the pressure P in the condenser 4, so that the traveling airflow flowing to the radiator 2 side and the traveling airflow flowing to the condenser 4 side are Adjust the ratio.

なお、本実施形態では、送風機7およびシュラウド8は、ラジエータ2およびコンデンサ4それぞれにその走行風流れ下流側に配置されている。   In the present embodiment, the blower 7 and the shroud 8 are arranged on the downstream side of the traveling wind flow in the radiator 2 and the condenser 4 respectively.

次に、本実施形態に係る車両用冷却装置の制御作動、つまり風量割合調節ガイド6の制御について述べる。   Next, the control operation of the vehicle cooling device according to the present embodiment, that is, the control of the air volume ratio adjusting guide 6 will be described.

本実施形態では、電子制御装置は、概略以下の3種の作動制御を行う。   In the present embodiment, the electronic control device performs the following three types of operation control.

(1)エンジン冷却水の温度Tが所定温度T1(例えば、100℃)より高くなったときは、ラジエータ2側に流れる風量が、エンジン冷却水の温度Tが所定温度T1以下のときにラジエータ2側に流れていた風量に比べて増大するように風量割合調節ガイド6を揺動させる。   (1) When the temperature T of the engine cooling water is higher than a predetermined temperature T1 (for example, 100 ° C.), the amount of air flowing to the radiator 2 is the radiator 2 when the temperature T of the engine cooling water is equal to or lower than the predetermined temperature T1. The air volume ratio adjusting guide 6 is swung so as to increase compared to the air volume flowing to the side.

(2)コンデンサ4内の圧力Pが所定圧力P1より高くなって車両用空調装置の空調負荷が所定空調負荷より大きくなったときは、コンデンサ4側に流れる風量が、コンデンサ4内の圧力Pが所定圧力P1以下、つまり車両用空調装置の空調負荷が所定空調負荷が所定空調負荷以下のときにコンデンサ4側に流れていた風量に比べて増大するように風量割合調節ガイド6を揺動させる。   (2) When the pressure P in the condenser 4 becomes higher than the predetermined pressure P1 and the air conditioning load of the vehicle air conditioner becomes larger than the predetermined air conditioning load, the amount of air flowing to the condenser 4 side is The air volume ratio adjusting guide 6 is oscillated so that the air pressure load of the vehicle air conditioner is lower than the predetermined pressure P1, that is, the air flow rate flowing to the condenser 4 is increased when the predetermined air conditioning load is equal to or lower than the predetermined air conditioning load.

なお、図4は上記した電子制御装置の制御作動を示すフローチャートの一例であり、以下、図4に示すフローチャートについて述べる。   FIG. 4 is an example of a flowchart showing the control operation of the electronic control device described above. Hereinafter, the flowchart shown in FIG. 4 will be described.

図4に示すフローチャートは、エンジンの始動と同時に起動されるもので、先ず、エンジン冷却水の温度Tが所定温度T1より高いか否かを判定する(S21)。   The flowchart shown in FIG. 4 is started simultaneously with the start of the engine. First, it is determined whether or not the temperature T of the engine coolant is higher than a predetermined temperature T1 (S21).

そして、エンジン冷却水の温度Tが所定温度T1より高い場合には、風量割合調節ガイド6を図3の実線に示す位置(以下、ポジション1と言う。)とし(S22)、エンジン冷却水の温度Tが所定温度T1以下である場合には、コンデンサ4内の圧力Pが所定圧力P1より高いか否かを判定する(S23)。   When the engine cooling water temperature T is higher than the predetermined temperature T1, the air volume ratio adjusting guide 6 is set to the position indicated by the solid line in FIG. 3 (hereinafter referred to as position 1) (S22), and the engine cooling water temperature is set. If T is equal to or lower than the predetermined temperature T1, it is determined whether or not the pressure P in the capacitor 4 is higher than the predetermined pressure P1 (S23).

そして、コンデンサ4内の圧力Pが所定圧力P1より高い場合には、風量割合調節ガイド6を図3の破線に示すポジション2の位置とし(S24)、コンデンサ4内の圧力Pが所定圧力P1以下の場合には、風量割合調節ガイド6をポジション1とする(S25)。   When the pressure P in the capacitor 4 is higher than the predetermined pressure P1, the air volume ratio adjusting guide 6 is set to the position 2 shown by the broken line in FIG. 3 (S24), and the pressure P in the capacitor 4 is equal to or lower than the predetermined pressure P1. In this case, the air volume ratio adjustment guide 6 is set to position 1 (S25).

次に、本実施形態に係る車両用冷却装置の作用効果を述べる。   Next, the effect of the vehicle cooling device according to the present embodiment will be described.

本実施形態では、ラジエータ2側に流れる走行風量とコンデンサ4側に流れる走行風量との風量割合を調節する風量割合調節ガイド6を設けているので、走行風を効果的に利用して車両用冷却装置の冷却能力を十分に発揮させることができ得る。   In the present embodiment, since the air volume ratio adjustment guide 6 for adjusting the air volume ratio between the traveling air volume flowing on the radiator 2 side and the traveling air volume flowing on the condenser 4 side is provided, the vehicle cooling is effectively performed using the traveling wind. The cooling capacity of the apparatus can be fully exhibited.

すなわち、エンジン冷却水の温度が上昇したときには、ラジエータ2側に流れる走行風量をそれ以前に比べて増大させるので、ラジエータ2の冷却能力を十分に発揮させることができる。   That is, when the temperature of the engine cooling water rises, the amount of traveling airflow flowing to the radiator 2 side is increased as compared to before that, so that the cooling capacity of the radiator 2 can be sufficiently exhibited.

また、コンデンサ4内の圧力が上昇して空調負荷が増大したときには、コンデンサ4側に流れる走行風量をそれ以前に比べて増大させるので、コンデンサ4の冷却能力を十分に発揮させることができる。   Further, when the pressure in the condenser 4 rises and the air conditioning load increases, the amount of traveling air flowing to the condenser 4 side is increased as compared to before that, so that the cooling capacity of the condenser 4 can be sufficiently exhibited.

以上に述べたように、本実施形態では、ラジエータ2およびコンデンサ4に要求される負荷に応じて走行風の分配割合を最適化するので、走行風を効果的に利用して車両用冷却装置の冷却能力を十分に発揮させることができる。   As described above, in this embodiment, since the distribution ratio of the traveling wind is optimized according to the load required for the radiator 2 and the condenser 4, the traveling wind is effectively used to The cooling capacity can be fully exhibited.

(その他の実施形態)
上述の実施形態では、風量割合調節ガイド6を熱交換器、つまりラジエータ2、コンデンサ4やインタークーラ3等の走行風流れ上流側に配置したが、風量割合調することが可能であれば、走行風流れ下流側に風量割合調節ガイド6を配置してもよい。
(Other embodiments)
In the above-described embodiment, the air volume ratio adjusting guide 6 is disposed on the upstream side of the traveling wind flow of the heat exchanger, that is, the radiator 2, the condenser 4, the intercooler 3, and the like. The air volume ratio adjusting guide 6 may be disposed on the downstream side of the wind flow.

また、上述の実施形態では、風量割合調節手段をなす風量割合調節ガイド6をドア手段にて構成したが、本発明は上述の実施形態に示された風量割合調節ガイド6に限定されるものではない。   In the above-described embodiment, the air volume ratio adjusting guide 6 that constitutes the air volume ratio adjusting means is configured by the door means, but the present invention is not limited to the air volume ratio adjusting guide 6 shown in the above-described embodiment. Absent.

また、風量割合調節ガイド6を揺動させるアクチュエータは、上述の実施形態に示されたものに限定されものではない。   Further, the actuator for swinging the air volume ratio adjusting guide 6 is not limited to the one shown in the above embodiment.

また、本発明は、特許請求の範囲に記載された発明の趣旨に合致するものであればよく、上述の実施形態に限定されるものではない。   Further, the present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims.

本発明の第1実施形態に係る車両用冷却装置の模式図である。It is a mimetic diagram of a vehicular cooling device concerning a 1st embodiment of the present invention. 本発明の第1実施形態に係る車両用冷却装置の制御作動の一例を示すフローチャートである。It is a flowchart which shows an example of the control action of the cooling device for vehicles which concerns on 1st Embodiment of this invention. 本発明の第2実施形態に係る車両用冷却装置の模式図である。It is a schematic diagram of the cooling device for vehicles which concerns on 2nd Embodiment of this invention. 本発明の第2実施形態に係る車両用冷却装置の制御作動の一例を示すフローチャートである。It is a flowchart which shows an example of the control action of the cooling device for vehicles which concerns on 2nd Embodiment of this invention.

符号の説明Explanation of symbols

1…車両用冷却装置、2…ラジエータ、3…インタークーラ、4…コンデンサ、
5…エアダクト、6…風量割合調節ガイド、7…送風機、8…シュラウド。
DESCRIPTION OF SYMBOLS 1 ... Vehicle cooling device, 2 ... Radiator, 3 ... Intercooler, 4 ... Condenser,
5 ... Air duct, 6 ... Air volume ratio adjustment guide, 7 ... Blower, 8 ... Shroud.

Claims (5)

走行風を導入するエアダクト(5)と、
前記エアダクト(5)にて導入される走行風流れに対して並列に配置された第1熱交換器(2、4)および第2熱交換器(3、4)と、
前記エアダクト(5)にて導入される走行風のうち、前記第1熱交換器(2、4)側に流れる風量と前記第2熱交換器(3、4)側に流れる風量と風量割合を調節する風量割合調節手段(6)とを有することを特徴とする車両用冷却装置。
An air duct (5) for introducing running wind;
A first heat exchanger (2, 4) and a second heat exchanger (3, 4) arranged in parallel with the traveling wind flow introduced in the air duct (5);
Of the traveling wind introduced in the air duct (5), the amount of air flowing to the first heat exchanger (2, 4) side and the amount of air flowing to the second heat exchanger (3, 4) side and the air volume ratio A vehicular cooling device comprising air volume ratio adjusting means (6) for adjusting.
前記風量割合調節手段(6)は、前記第1熱交換器(2、4)および前記第2熱交換器(3、4)の空気流れ上流側に配置されて前記第1熱交換器(2、4)側に流れる風量と前記第2熱交換器(3、4)側に流れる風量と風量割合を調節するドア手段により構成されていることを特徴とする請求項1に記載の車両用冷却装置。 The air volume ratio adjusting means (6) is disposed on the upstream side of the air flow of the first heat exchanger (2, 4) and the second heat exchanger (3, 4), and the first heat exchanger (2 4. The vehicle cooling according to claim 1, comprising door means for adjusting the air volume flowing to the 4) side and the air volume flowing to the second heat exchanger (3, 4) and the air volume ratio. apparatus. 前記第1熱交換器(2)は、走行用駆動源をなす内燃機関を冷却するラジエータであり、
前記第2熱交換器(3)は、前記内燃機関に供給する燃焼用の空気を冷却するインタークーラであり、
前記風量割合調節手段(6)は、前記内燃機関の温度が所定温度より高いときは、前記第1熱交換器(2)側に流れる風量を、前記内燃機関の温度が所定温度以下のときに前記第1熱交換器(2)側に流れる風量に比べて増大させ、
さらに、前記風量割合調節手段(6)は、前記内燃機関の負荷が所定負荷より大きいときは、前記第2熱交換器(3)側に流れる風量を、前記内燃機関の負荷が所定負荷以下のときに前記第2熱交換器(3)側に流れる風量に比べて増大させることを特徴とする請求項1または2に記載の車両用冷却装置。
The first heat exchanger (2) is a radiator that cools an internal combustion engine that forms a driving source for traveling,
The second heat exchanger (3) is an intercooler that cools combustion air supplied to the internal combustion engine,
When the temperature of the internal combustion engine is higher than a predetermined temperature, the air volume ratio adjusting means (6) determines the amount of air flowing to the first heat exchanger (2) side when the temperature of the internal combustion engine is lower than the predetermined temperature. Increasing the amount of air flowing to the first heat exchanger (2) side,
Further, the air volume ratio adjusting means (6), when the load on the internal combustion engine is larger than a predetermined load, determines the air volume flowing to the second heat exchanger (3) side so that the load on the internal combustion engine is less than the predetermined load. The vehicular cooling device according to claim 1 or 2, characterized in that it is increased as compared with the amount of air flowing to the second heat exchanger (3) side.
前記第1熱交換器(4)は、車両用空調装置の放熱用の室外熱交換器であり、
前記第2熱交換器(3)は、走行用駆動源をなす内燃機関に供給する燃焼用の空気を冷却するインタークーラであり、
前記風量割合調節手段(6)は、前記車両用空調装置の空調負荷が所定空調負荷より大きいときは、前記第1熱交換器(4)側に流れる風量を、前記車両用空調装置の空調負荷が所定空調負荷が所定空調負荷以下のときに前記第1熱交換器(4)側に流れる風量に比べて増大させ、
さらに、前記風量割合調節手段(6)は、前記内燃機関の負荷が所定負荷より大きいときは、前記第2熱交換器(3)側に流れる風量を、前記内燃機関の負荷が所定負荷以下のときに前記第2熱交換器(3)側に流れる風量に比べて増大させることを特徴とする請求項1ないし3のいずれか1つに記載の車両用冷却装置。
The first heat exchanger (4) is an outdoor heat exchanger for heat dissipation of a vehicle air conditioner,
The second heat exchanger (3) is an intercooler that cools combustion air supplied to an internal combustion engine that constitutes a driving source for traveling,
When the air conditioning load of the vehicle air conditioner is larger than a predetermined air conditioning load, the air volume ratio adjusting means (6) uses the air volume flowing to the first heat exchanger (4) side as the air conditioning load of the vehicle air conditioner. Is increased compared to the amount of air flowing to the first heat exchanger (4) when the predetermined air conditioning load is equal to or less than the predetermined air conditioning load,
Further, the air volume ratio adjusting means (6), when the load on the internal combustion engine is larger than a predetermined load, determines the air volume flowing to the second heat exchanger (3) side so that the load on the internal combustion engine is less than the predetermined load. The vehicular cooling device according to any one of claims 1 to 3, characterized in that it is increased compared to the amount of air flowing to the second heat exchanger (3) side.
前記第1熱交換器(2)は、走行用駆動源をなす内燃機関を冷却するラジエータであり、
前記第2熱交換器(4)は、車両用空調装置の放熱用の室外熱交換器であり、
前記風量割合調節手段(6)は、前記内燃機関の温度が所定温度より高いときは、前記第1熱交換器(2)側に流れる風量を、前記内燃機関の温度が所定温度以下のときに前記第1熱交換器(2)側に流れる風量に比べて増大させ、
さらに、前記風量割合調節手段(6)は、前記車両用空調装置の空調負荷が所定空調負荷より大きいときは、前記第2熱交換器(4)側に流れる風量を、前記車両用空調装置の空調負荷が所定空調負荷が所定空調負荷以下のときに前記第2熱交換器(4)側に流れる風量に比べて増大させることを特徴とする請求項1または2に記載の車両用冷却装置。
The first heat exchanger (2) is a radiator that cools an internal combustion engine that forms a driving source for traveling,
The second heat exchanger (4) is an outdoor heat exchanger for heat dissipation of a vehicle air conditioner,
When the temperature of the internal combustion engine is higher than a predetermined temperature, the air volume ratio adjusting means (6) determines the amount of air flowing to the first heat exchanger (2) side when the temperature of the internal combustion engine is lower than the predetermined temperature. Increasing the amount of air flowing to the first heat exchanger (2) side,
Further, the air volume ratio adjusting means (6), when the air conditioning load of the vehicle air conditioner is larger than a predetermined air conditioning load, controls the air volume flowing to the second heat exchanger (4) side of the vehicle air conditioner. The vehicle cooling device according to claim 1 or 2, wherein the air conditioning load is increased as compared with the amount of air flowing to the second heat exchanger (4) when the predetermined air conditioning load is equal to or less than the predetermined air conditioning load.
JP2003349705A 2003-10-08 2003-10-08 Cooling apparatus for vehicle Pending JP2005112186A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007076602A (en) * 2005-09-16 2007-03-29 Kobelco Contstruction Machinery Ltd Air guide sheet for heat exchanger and construction machine
US7814966B2 (en) 2007-02-05 2010-10-19 Gm Global Technology Operations, Inc. Variable flow heat exchanger system and method
CN102128074A (en) * 2010-01-18 2011-07-20 福特环球技术公司 Vehicle device and operation method thereof
US10240514B2 (en) 2015-11-03 2019-03-26 Hyundai Motor Company Water-cooled intercooler system using air conditioning system and control method thereof
DE112020002356T5 (en) 2019-05-14 2022-02-24 Denso Corporation cooling system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007076602A (en) * 2005-09-16 2007-03-29 Kobelco Contstruction Machinery Ltd Air guide sheet for heat exchanger and construction machine
US7814966B2 (en) 2007-02-05 2010-10-19 Gm Global Technology Operations, Inc. Variable flow heat exchanger system and method
CN102128074A (en) * 2010-01-18 2011-07-20 福特环球技术公司 Vehicle device and operation method thereof
US10240514B2 (en) 2015-11-03 2019-03-26 Hyundai Motor Company Water-cooled intercooler system using air conditioning system and control method thereof
DE112020002356T5 (en) 2019-05-14 2022-02-24 Denso Corporation cooling system

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