JP2002213242A - Cooling controller for movable body - Google Patents
Cooling controller for movable bodyInfo
- Publication number
- JP2002213242A JP2002213242A JP2001010905A JP2001010905A JP2002213242A JP 2002213242 A JP2002213242 A JP 2002213242A JP 2001010905 A JP2001010905 A JP 2001010905A JP 2001010905 A JP2001010905 A JP 2001010905A JP 2002213242 A JP2002213242 A JP 2002213242A
- Authority
- JP
- Japan
- Prior art keywords
- cooling air
- cooling
- electric fan
- radiator
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Air-Conditioning For Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、移動体の冷却制御
装置に関し、より詳しくは、車両等の移動体において、
エンジンなどの冷却対象とラジエータとのあいだで冷媒
を循環させる構成を有する冷却装置の冷媒温度制御に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling control device for a moving body, and more particularly, to a cooling apparatus for a moving body such as a vehicle.
The present invention relates to refrigerant temperature control of a cooling device having a configuration for circulating a refrigerant between a cooling target such as an engine and a radiator.
【０００２】[0002]
【従来の技術と解決すべき課題】自動車など移動体用の
冷却システムとして、エンジンやモータ等の冷却対象と
ラジエータとの間に冷媒を循環させ、ラジエータでの放
熱により冷却対象を冷却するようにしたものが一般的で
ある。また、走行風のみではラジエータでの放熱量が不
足するときのために強制冷却風を供給する電動ファンを
備え、この電動ファンを、冷却風温度や外気温度および
冷却対象の発熱量によりオンオフ制御するか、もしくは
その回転速度を可変制御するようにしたものが知られて
いる（特開平１０−６４５９８公報参照）。また、電動
ポンプを用いることにより冷媒の温度に応じて冷媒流量
を変化させ、さらに冷媒流量が所定量を超えた場合に電
動ファンを作動させるようにしたものもある（特開平１
０−２２７２１５）。2. Description of the Related Art As a cooling system for a moving body such as an automobile, a coolant is circulated between a cooling object such as an engine or a motor and a radiator, and the cooling object is cooled by heat radiation from the radiator. What is done is common. In addition, an electric fan that supplies forced cooling air when the amount of heat radiation from the radiator is insufficient with only the traveling wind is provided, and the electric fan is controlled to be turned on and off according to a cooling air temperature, an outside air temperature, and a heat generation amount of a cooling target. Alternatively, a device in which the rotation speed is variably controlled is known (see Japanese Patent Application Laid-Open No. H10-64598). In addition, there is a type in which the flow rate of the refrigerant is changed in accordance with the temperature of the refrigerant by using an electric pump, and the electric fan is operated when the flow rate of the refrigerant exceeds a predetermined amount (Japanese Patent Laid-Open No. Hei 1 (1994)).
0-227215).
【０００３】ところで、こうした冷却システムにおいて
電動ファンや電動ポンプが消費する電力は非常に大き
く、燃料消費率向上の阻害要因になっている。特に、燃
料電池を搭載したシステムの場合、要求放熱量が大きい
ためその傾向が顕著である。[0003] In such a cooling system, the electric power consumed by the electric fan or the electric pump is extremely large, which is a hindrance to the improvement of the fuel consumption rate. In particular, in the case of a system equipped with a fuel cell, the tendency is remarkable because the required heat radiation amount is large.
【０００４】電動ファンの回転を制御する従来技術にお
いては、冷却風温度および冷却対象の発熱量を基に電動
ファンを可変制御することで消費電力を抑えることは可
能である。しかしながら、ラジエータの冷却風として走
行風を利用する場合には冷却対象の発熱量、移動速度と
冷却風温度の組み合わせによっては、電動ファンの回転
速度を低下もしくは停止させても十分なラジエータの冷
却風量を確保でき、冷却対象の加熱を防止できる場合が
あるが、このような制御は前記従来技術では困難であ
る。また、電動ポンプにより冷媒流量を可変制御する構
成によれば、冷媒流量による冷却を優先させることで電
動ファンの作動頻度を少なくすることは可能である。し
かしながら、燃料電池のような放熱量が大きい冷却対象
を持つシステムでは、冷媒の最大流量も相応に大きく、
電動ポンプの消費電力も増加するため、冷媒流量が所定
の流量に達してから電動ファンを作動させることが、必
ずしも消費電力の低減にはならない。In the prior art for controlling the rotation of the electric fan, it is possible to reduce the power consumption by variably controlling the electric fan based on the temperature of the cooling air and the amount of heat generated by the object to be cooled. However, when running air is used as the cooling air for the radiator, depending on the amount of heat generated by the object to be cooled, the combination of the moving speed and the cooling air temperature, the cooling air flow of the radiator is sufficient even if the rotation speed of the electric fan is reduced or stopped. In some cases, heating of the object to be cooled can be prevented, but such control is difficult with the above-described conventional technology. Further, according to the configuration in which the flow rate of the refrigerant is variably controlled by the electric pump, it is possible to reduce the operation frequency of the electric fan by giving priority to cooling by the flow rate of the refrigerant. However, in a system such as a fuel cell that has a cooling target with a large amount of heat radiation, the maximum flow rate of the refrigerant is correspondingly large,
Since the power consumption of the electric pump also increases, activating the electric fan after the refrigerant flow reaches a predetermined flow does not necessarily reduce the power consumption.
【０００５】本発明はこのような従来の問題点に着目し
てなされたもので、移動体および冷却対象の運転状態に
応じて電動ファンまたは電動ポンプの消費電力を最小限
に抑えることができる冷却制御装置を提供することを目
的としている。The present invention has been made in view of such conventional problems, and has a cooling device capable of minimizing power consumption of an electric fan or an electric pump in accordance with the operating state of a moving body and a cooling object. It is intended to provide a control device.
【０００６】[0006]
【課題を解決するための手段】第１の発明は、冷却対象
とラジエータとのあいだで冷媒を循環させる冷却系統
と、ラジエータに強制冷却風を供給する電動ファンとを
備えた移動体の冷却装置において、冷媒温度、冷却風温
度、冷却対象の発熱量、移動体の移動速度をそれぞれ検
出する検出装置と、前記検出結果に基づき電動ファンに
よる冷却風量を制御する制御装置とを備え、前記制御装
置は、検出した発熱量、冷媒温度、冷却風温度を用いて
ラジエータでの所要冷却風量を演算すると共に、前記検
出した移動速度を用いてラジエータの実冷却風量を演算
し、前記所要冷却風量が実冷却風量よりも大のときに前
記電動ファンを駆動するように構成した。According to a first aspect of the present invention, there is provided a cooling device for a moving body, comprising: a cooling system for circulating a refrigerant between a cooling object and a radiator; and an electric fan for supplying forced cooling air to the radiator. A detection device for detecting a refrigerant temperature, a cooling air temperature, a heat generation amount of a cooling object, and a moving speed of a moving object; and a control device for controlling a cooling air flow by an electric fan based on the detection result, wherein the control device Calculates the required cooling air volume at the radiator using the detected heat value, the refrigerant temperature, and the cooling air temperature, and calculates the actual cooling air volume of the radiator using the detected moving speed. The electric fan is driven when the cooling air flow is larger than the cooling air flow.
【０００７】第２の発明は、前記制御装置を、所要冷却
風量と実冷却風量との差に相当する風量が得られるよう
に電動ファンを制御するように構成した。According to a second aspect of the present invention, the controller is configured to control the electric fan such that an air flow corresponding to a difference between a required cooling air flow and an actual cooling air flow is obtained.
【０００８】第３の発明は、電動ポンプにより冷却対象
とラジエータとのあいだで冷媒を循環させる冷却系統
と、ラジエータに強制冷却風を供給する電動ファンとを
備えた移動体の冷却装置において、前記電動ポンプと電
動ファンとをそれぞれ可変的に冷媒流量、冷却風量を制
御可能に構成すると共に、冷媒温度、冷却風温度、冷却
対象の発熱量、移動体の移動速度をそれぞれ検出する検
出装置と、前記検出結果に基づいて電動ポンプおよび電
動ファンの回転速度を制御する制御装置とを設け、前記
制御装置は、検出した発熱量、冷媒温度、冷却風温度を
用いてラジエータでの所要放熱量を演算すると共に、こ
の所要放熱量を満たす冷媒流量と強制冷却風量の組み合
わせのうち電動ポンプと電動ファンの消費電力の和が最
小となる組み合わせを演算し、この演算結果に基づいて
電動ポンプと電動ファンを駆動するように構成した。According to a third aspect of the present invention, there is provided a cooling device for a moving body, comprising: a cooling system for circulating a refrigerant between an object to be cooled and a radiator by an electric pump; and an electric fan for supplying forced cooling air to the radiator. A detection device configured to variably control the refrigerant flow rate and the cooling air flow with the electric pump and the electric fan, respectively, and to detect a refrigerant temperature, a cooling air temperature, a heat generation amount of a cooling target, and a moving speed of the moving body, respectively; A control device for controlling the rotation speed of the electric pump and the electric fan based on the detection result, wherein the control device calculates a required heat radiation amount in the radiator using the detected heat value, refrigerant temperature, and cooling air temperature. And the combination that minimizes the sum of the power consumption of the electric pump and the electric fan among the combination of the refrigerant flow rate and the forced cooling air volume that satisfies the required heat release amount Calculated, and configured to drive the electric pump and the electric fan based on the calculation result.
【０００９】第４の発明は、前記何れかの発明におい
て、その検出手段を、冷却対象の運転条件に基づいて発
熱量を推定するように構成した。According to a fourth aspect of the present invention, in any one of the above aspects, the detecting means is configured to estimate a heat generation amount based on an operating condition of a cooling target.
【００１０】[0010]
【作用・効果】前記第１の発明では、電動ファンを作動
させなくとも冷媒温度を目標値以下に抑えることができ
るだけのラジエータ風量を確保できる条件下では電動フ
ァンを停止させる。さらに、第２の発明では要求冷却風
量と実冷却風量との差を補いうる限度で電動ファンを駆
動し、すなわち電動ファンの消費電力が最小となる様に
電動ファンの回転を制御する。これらにより電動ファン
の作動頻度を必要最小限に低減できるため、電動ファン
の耐久性向上と消費電力の低減を達成することができ
る。なお、図３は一般的な車両における車両速度とラジ
エータの通過風量の関係を説明する図であり、車両速度
が増すごとに通過風量も増加することがわかる。According to the first aspect of the present invention, the electric fan is stopped under a condition in which a radiator air volume sufficient to keep the refrigerant temperature below the target value can be secured without operating the electric fan. Further, in the second invention, the electric fan is driven to the extent that the difference between the required cooling air amount and the actual cooling air amount can be compensated, that is, the rotation of the electric fan is controlled so that the power consumption of the electric fan is minimized. As a result, the operation frequency of the electric fan can be reduced to a necessary minimum, so that the durability of the electric fan can be improved and the power consumption can be reduced. FIG. 3 is a diagram for explaining the relationship between the vehicle speed and the amount of air passing through the radiator in a general vehicle, and it can be seen that the amount of air passing increases as the vehicle speed increases.
【００１１】第３の発明では、移動速度と、冷媒温度、
冷却風温度、冷却対象の発熱量の検出結果から、冷媒温
度を目標値以下に抑え、かつ電動ファンおよび電動ポン
プが消費する電力の和が最小となる様に電動ファンと電
動ポンプの回転速度を可変制御する。これにより、冷媒
流量を可変制御する構成下での電動ポンプと電動ファン
が消費する電力をより低減することができる。In the third aspect, the moving speed, the refrigerant temperature,
Based on the detection results of the cooling air temperature and the calorific value of the object to be cooled, the rotation speed of the electric fan and the electric pump is controlled so that the refrigerant temperature is kept below the target value and the sum of the electric power consumed by the electric fan and the electric pump is minimized. Variable control. This makes it possible to further reduce the power consumed by the electric pump and the electric fan under a configuration in which the flow rate of the refrigerant is variably controlled.
【００１２】前記各発明において、冷却対象の運転条件
は第４の発明として示したように冷却対象の運転条件か
ら推定することができる。例えば冷却対象が電動機であ
れば作動電圧と回転速度とトルクから、燃料電池であれ
ば電流と電圧と効率とから検出可能である。効率に関し
ては、あらかじめ実験等により運転条件と効率の関係を
求めておけばよい。一般的に運転条件は冷却対象の制御
のために検出されており、本発明ではそれらを利用する
ことで、新たなる検出手段を使用する必要はない。In each of the above inventions, the operating condition of the object to be cooled can be estimated from the operating condition of the object to be cooled as shown in the fourth invention. For example, if the object to be cooled is an electric motor, it can be detected from the operating voltage, the rotation speed and the torque, and if it is a fuel cell, it can be detected from the current, the voltage and the efficiency. Regarding the efficiency, the relationship between the operating conditions and the efficiency may be obtained in advance through experiments or the like. Generally, the operating conditions are detected for controlling the cooling target, and the present invention makes it unnecessary to use a new detecting means by using them.
【００１３】[0013]
【発明の実施の形態】以下、図面に基づいて本発明の実
施形態を説明する。図１は本発明の第１の実施形態であ
る。冷却対象１は、自動車等の車両に搭載される内燃機
関、電動機または燃料電池などである。前記冷却対象１
を冷却する冷却システムは、一定負荷または一定回転で
作動して冷却対象１に冷媒を循環させるポンプ３と冷媒
配管５と、冷却対象の発熱により授熱した冷媒を冷却す
る放熱手段としてのラジエータ４と、ラジエータ４に冷
却風を送風してラジエータ４内の冷媒を冷却する電動フ
ァン２で構成されている。前記電動ファン２はその電動
機回転速度を制御することによりラジエータ４への強制
冷却風量を可変制御することができる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a first embodiment of the present invention. The cooling target 1 is an internal combustion engine, an electric motor, a fuel cell, or the like mounted on a vehicle such as an automobile. The cooling object 1
The cooling system for cooling the cooling system includes a pump 3 and a refrigerant pipe 5 that operate at a constant load or rotation to circulate the refrigerant to the object 1 to be cooled, and a radiator 4 as a radiator that cools the refrigerant transferred by the heat generated by the object to be cooled. And an electric fan 2 that sends cooling air to the radiator 4 to cool the refrigerant in the radiator 4. The electric fan 2 can variably control the amount of forced cooling air to the radiator 4 by controlling the rotation speed of the electric motor.
【００１４】６は冷却対象１を通過した冷媒の温度を検
出する温度検出装置、７は車両の移動速度を検出する速
度検出装置、９はラジエータ４もしくはその近傍にて冷
却風の温度を検出する温度検出装置であり、これらの検
出結果は制御装置８に出力される。制御装置８は、マイ
クロコンピュータおよびその周辺装置等から構成され、
前記検出された車両速度、冷媒温度、冷却対象の発熱
量、冷却風温度の組み合わせにより、電動ファン２の回
転速度を可変制御する。6 is a temperature detecting device for detecting the temperature of the refrigerant passing through the cooling object 1, 7 is a speed detecting device for detecting the moving speed of the vehicle, and 9 is a radiator 4 or the vicinity thereof for detecting the temperature of the cooling air. This is a temperature detection device, and the detection results are output to the control device 8. The control device 8 includes a microcomputer and its peripheral devices, and the like.
The rotation speed of the electric fan 2 is variably controlled based on a combination of the detected vehicle speed, refrigerant temperature, heat generation amount of the cooling target, and cooling air temperature.
【００１５】次に、前記制御装置８による電動ファン制
御の詳細につき、図２に示した流れ図に沿って説明す
る。図２は前記電動ファン制御の制御ルーチンを表して
おり、所定周期にて繰り返し実行される。以下、その処
理ステップ（符号「Ｓ」で表す。）を順を追って説明す
る。 Ｓ１：車両速度、冷媒温度、冷却対象の発熱量と、冷却
風温度を検出する。 Ｓ１：Ｓ１で検出された冷媒温度、冷却風温度および冷
却対象の発熱量よりラジエータ４の要求冷却風量Ｖｔを
算出する。 Ｓ３：予め実験により求めておいた車両速度とラジエー
タ４の通過風量との関係（図３参照）から、現在の速度
における電動ファン２停止状態での通過風量Ｖｒを算出
する。 Ｓ４：以上の結果より電動ファン２の作動条件を次のよ
うにして判断する。 Ｓ５：Ｖｔ≦Ｖｒのとき、電動ファン２はＯＦＦとす
る。 Ｓ６：Ｖｔ>Ｖｒのとき、電動ファン２はＯＮとし、ラ
ジエータ４の通過風量がＶｔになるように電動ファン２
の回転速度を可変制御する。このとき、電動ファン２の
回転速度制御はＯＮ、ＯＦＦのみの切り替えか、低、
中、高などの段階的な制御としてもよい。また、電動フ
ァン２のＯＮ、ＯＦＦが頻繁に繰り返す動作を防止する
ために、冷媒対象の発熱量を所定の時間における平均値
として求めるか、ＶｔとＶｒの間にヒステリシスを設け
てもよい。Next, the details of the electric fan control by the controller 8 will be described with reference to the flowchart shown in FIG. FIG. 2 shows a control routine of the electric fan control, which is repeatedly executed at a predetermined cycle. Hereinafter, the processing steps (represented by the symbol “S”) will be described step by step. S1: The vehicle speed, the refrigerant temperature, the heat value of the object to be cooled, and the cooling air temperature are detected. S1: The required cooling air volume Vt of the radiator 4 is calculated from the refrigerant temperature, the cooling air temperature detected in S1, and the heat value of the cooling target. S3: From the relationship between the vehicle speed and the amount of air passing through the radiator 4 (see FIG. 3) determined in advance by experiments, the amount of air flowing Vr at the current speed when the electric fan 2 is stopped is calculated. S4: Based on the above results, the operating condition of the electric fan 2 is determined as follows. S5: When Vt ≦ Vr, the electric fan 2 is turned off. S6: When Vt> Vr, the electric fan 2 is turned ON, and the electric fan 2 is turned on so that the amount of air passing through the radiator 4 becomes Vt.
Variably controls the rotational speed of the motor. At this time, the rotation speed control of the electric fan 2 is switched between ON and OFF only,
Stepwise control such as middle and high may be performed. Further, in order to prevent the operation of the electric fan 2 from being repeatedly turned on and off frequently, the heat generation amount of the refrigerant may be obtained as an average value in a predetermined time, or a hysteresis may be provided between Vt and Vr.
【００１６】このような制御を行うことにより、比較的
高速の移動速度域での電動ファンの作動頻度を低減でき
るため、電動ファンの耐久性向上と消費電力の低減を図
ることができる。By performing such control, the frequency of operation of the electric fan in a relatively high moving speed range can be reduced, so that the durability of the electric fan can be improved and power consumption can be reduced.
【００１７】図４に本発明の第２の実施形態を示す。こ
の実施形態は、前記第１の実施形態に対して、制御対象
として電動ファン２に加え電動ポンプ３を有し、車両速
度、冷媒温度、冷却風温度、冷却対象の発熱量の何れか
の組み合わせにより、前記電動ファン２の回転速度と、
前記電動ポンプ３の回転速度の両方をそれぞれの消費電
力の和が最小となるように可変制御するものである。前
記電動ポンプ３はその電動機の回転速度を制御すること
により冷媒循環流量を可変制御することができる。その
他の構成については図１と同様であるので、対応する部
分に同一の符号を付して示しておく。FIG. 4 shows a second embodiment of the present invention. This embodiment is different from the first embodiment in that an electric pump 3 is provided in addition to the electric fan 2 as an object to be controlled, and any combination of a vehicle speed, a refrigerant temperature, a cooling air temperature, and a heat generation amount of the object to be cooled. Thus, the rotation speed of the electric fan 2
Both of the rotation speeds of the electric pump 3 are variably controlled so that the sum of the respective power consumptions is minimized. The electric pump 3 can variably control the refrigerant circulation flow rate by controlling the rotation speed of the electric motor. Other configurations are the same as those in FIG. 1, and corresponding portions are denoted by the same reference numerals.
【００１８】次に、この実施形態の制御動作について、
図５に示した流れ図に沿って説明する。図５は前記電動
ファンおよび電動ポンプ制御の制御ルーチンを表してお
り、所定周期にて繰り返し実行される。以下、その処理
ステップを順を追って説明する。 Ｓ７：冷媒流量より電動ポンプ３の消費電力を算出す
る。 Ｓ８：車両速度、冷媒温度、冷却対象の発熱量と、冷却
風温度を検出する。 Ｓ９：Ｓ８で検出された冷媒温度、冷却風温度および冷
却対象の発熱量よりラジエータ４の要求冷却風量を算出
し、算出した要求冷却風量と車両速度から電動ファン２
の消費電力を算出する。 Ｓ１０：電動ポンプ３と電動ファン２の消費電力の和を
算出する。前記Ｓ７〜Ｓ１０の処理を冷媒流量０から最
大流量まで所定流量毎に繰り返し計算する。 Ｓ１１：電動ポンプ３と電動ファン２の消費電力の和が
最小となる電動ポンプ３と電動ファン２の作動条件を選
び出し、制御目標とする。 Ｓ１２：前記制御目標となるように電動ポンプ３と電動
ファン２の回転速度を制御する。Next, the control operation of this embodiment will be described.
This will be described with reference to the flowchart shown in FIG. FIG. 5 shows a control routine for controlling the electric fan and the electric pump, which is repeatedly executed at a predetermined cycle. Hereinafter, the processing steps will be described step by step. S7: Calculate the power consumption of the electric pump 3 from the refrigerant flow rate. S8: The vehicle speed, the refrigerant temperature, the heat value of the object to be cooled, and the cooling air temperature are detected. S9: The required cooling air volume of the radiator 4 is calculated from the refrigerant temperature, the cooling air temperature detected in S8, and the calorific value of the cooling object, and the electric fan 2 is calculated from the calculated required cooling air volume and the vehicle speed.
Is calculated. S10: The sum of the power consumption of the electric pump 3 and the electric fan 2 is calculated. The processes of S7 to S10 are repeatedly calculated for each predetermined flow rate from the refrigerant flow rate 0 to the maximum flow rate. S11: The operating conditions of the electric pump 3 and the electric fan 2 that minimize the sum of the power consumption of the electric pump 3 and the electric fan 2 are selected and set as control targets. S12: The rotation speeds of the electric pump 3 and the electric fan 2 are controlled so as to be the control target.
【００１９】図６、図７は、それぞれある冷却対象の発
熱量および冷却風温度における冷媒温度を目標値以上に
あげないための冷媒流量に対する電動ファン２と電動ポ
ンプ３の消費電力の関係図である。図６は車両速度が中
速域、図７は高速域における前記の関係図である。図
６、図７に示すとおり電動ファン２と電動ポンプ３のト
ータル消費電力が最小となるように、電動ファン２と電
動ポンプ３を制御することで消費電力を可能な限り低減
することができる。また、車両速度が高いほど消費電力
の低減効果が大きいことがわかる。このようにして消費
電力を低減することにより、例えば前記実施形態の冷却
装置を備えた燃料電池車のシステム効率および燃費を図
ることができる。FIGS. 6 and 7 are diagrams showing the relationship between the power consumption of the electric fan 2 and the electric pump 3 with respect to the flow rate of the refrigerant in order to prevent the heat value of the cooling object and the cooling air temperature at the cooling air temperature from exceeding the target values. is there. FIG. 6 is a diagram showing the relationship when the vehicle speed is in a medium speed range, and FIG. As shown in FIGS. 6 and 7, by controlling the electric fan 2 and the electric pump 3 so that the total power consumption of the electric fan 2 and the electric pump 3 is minimized, the power consumption can be reduced as much as possible. Also, it can be seen that the higher the vehicle speed, the greater the effect of reducing power consumption. By reducing power consumption in this manner, for example, system efficiency and fuel efficiency of a fuel cell vehicle equipped with the cooling device of the embodiment can be improved.
【図１】本発明による冷却制御装置に第１の実施形態の
概略構成図。FIG. 1 is a schematic configuration diagram of a first embodiment of a cooling control device according to the present invention.
【図２】第１の実施形態の制御内容を示す流れ図。FIG. 2 is a flowchart showing control contents of the first embodiment.
【図３】車両速度とラジエータ通過風量との関係を表す
説明図。FIG. 3 is an explanatory diagram illustrating a relationship between a vehicle speed and a radiator passing air flow rate.
【図４】本発明による冷却制御装置に第２の実施形態の
概略構成図。FIG. 4 is a schematic configuration diagram of a cooling control device according to a second embodiment of the present invention.
【図５】第２の実施形態の制御内容を示す流れ図。FIG. 5 is a flowchart showing control contents of a second embodiment.
【図６】中車速域の冷媒流量に対する電動ポンプと電動
ファン消費電力の関係を表す説明図。FIG. 6 is an explanatory diagram showing a relationship between electric pump and electric fan power consumption with respect to a refrigerant flow rate in a middle vehicle speed range.
【図７】高車速域の冷媒流量に対する電動ポンプと電動
ファン消費電力の関係を表す説明図。FIG. 7 is an explanatory diagram showing a relationship between electric pump and electric fan power consumption with respect to a refrigerant flow rate in a high vehicle speed range.
１ 冷却対象 ２ 電動ファン ３ 電動ポンプ ４ ラジエータ ５ 冷媒配管 ６ 冷媒の温度検出装置 ７ 速度検出装置 ８ 制御装置 ９ 冷却風の温度検出装置 DESCRIPTION OF SYMBOLS 1 Cooling object 2 Electric fan 3 Electric pump 4 Radiator 5 Refrigerant pipe 6 Refrigerant temperature detecting device 7 Speed detecting device 8 Control device 9 Cooling air temperature detecting device
Claims (4)
循環させる冷却系統と、ラジエータに強制冷却風を供給
する電動ファンとを備えた移動体の冷却装置において、 冷媒温度、冷却風温度、冷却対象の発熱量、移動体の移
動速度をそれぞれ検出する検出装置と、 前記検出結果に基づき電動ファンによる冷却風量を制御
する制御装置とを備え、 前記制御装置は、検出した発熱量、冷媒温度、冷却風温
度を用いてラジエータでの所要冷却風量を演算すると共
に、前記検出した移動速度を用いてラジエータの実冷却
風量を演算し、前記所要冷却風量が実冷却風量よりも大
のときに前記電動ファンを駆動するように構成した移動
体の冷却制御装置。1. A moving object cooling apparatus comprising: a cooling system for circulating a coolant between a cooling object and a radiator; and an electric fan for supplying a forced cooling air to the radiator. A heat generation amount of the target, a detection device that detects the moving speed of the moving body, respectively, and a control device that controls the amount of cooling air by the electric fan based on the detection result, the control device detects the heat generation amount, the refrigerant temperature, The required cooling air volume at the radiator is calculated using the cooling air temperature, and the actual cooling air volume of the radiator is calculated using the detected moving speed. When the required cooling air volume is larger than the actual cooling air volume, the electric A moving body cooling control device configured to drive a fan.
量との差に相当する風量が得られるように電動ファンを
制御するように構成した請求項１に記載の移動体の冷却
制御装置。2. The cooling control device for a moving body according to claim 1, wherein the control device is configured to control the electric fan such that an air flow corresponding to a difference between a required cooling air flow and an actual cooling air flow is obtained. .
のあいだで冷媒を循環させる冷却系統と、ラジエータに
強制冷却風を供給する電動ファンとを備えた移動体の冷
却装置において、 前記電動ポンプと電動ファンとをそれぞれ可変的に冷媒
流量、冷却風量を制御可能に構成すると共に、 冷媒温度、冷却風温度、冷却対象の発熱量、移動体の移
動速度をそれぞれ検出する検出装置と、 前記検出結果に基づいて電動ポンプおよび電動ファンの
回転速度を制御する制御装置とを設け、 前記制御装置は、検出した発熱量、冷媒温度、冷却風温
度を用いてラジエータでの所要放熱量を演算すると共
に、この所要放熱量を満たす冷媒流量と強制冷却風量の
組み合わせのうち電動ポンプと電動ファンの消費電力の
和が最小となる組み合わせを演算し、この演算結果に基
づいて電動ポンプと電動ファンを駆動するように構成し
た移動体の冷却制御装置。3. A cooling device for a moving body, comprising: a cooling system for circulating a refrigerant between an object to be cooled and a radiator by an electric pump; and an electric fan for supplying forced cooling air to the radiator. A detection device configured to variably control the flow rate of the refrigerant and the amount of cooling air with the fan, and a detection device that respectively detects a refrigerant temperature, a cooling air temperature, a heat generation amount of a cooling target, and a moving speed of a moving object; A control device that controls the rotation speed of the electric pump and the electric fan based on the detected heat value, the refrigerant temperature, and the cooling air temperature, and calculates a required heat release amount in the radiator, Calculate the combination that minimizes the sum of the power consumption of the electric pump and the electric fan among the combinations of the refrigerant flow rate and the forced cooling air volume that satisfy the required heat release amount. A cooling control device for a moving body configured to drive an electric pump and an electric fan based on the calculation result of (1).
づいて発熱量を推定するように構成した請求項１から請
求項３の何れかに記載の移動体の冷却制御装置。4. The cooling control device for a moving body according to claim 1, wherein said detecting means is configured to estimate a heat value based on an operating condition of a cooling target.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001010905A JP2002213242A (en) | 2001-01-19 | 2001-01-19 | Cooling controller for movable body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001010905A JP2002213242A (en) | 2001-01-19 | 2001-01-19 | Cooling controller for movable body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002213242A true JP2002213242A (en) | 2002-07-31 |
Family
ID=18878130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001010905A Pending JP2002213242A (en) | 2001-01-19 | 2001-01-19 | Cooling controller for movable body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002213242A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006342680A (en) * | 2005-06-07 | 2006-12-21 | Toyota Motor Corp | Cooling system of internal combustion engine |
| JP2008267246A (en) * | 2007-04-19 | 2008-11-06 | Toyota Motor Corp | Cooling device for internal combustion engine |
| JP2010060166A (en) * | 2008-09-01 | 2010-03-18 | Yazaki Corp | Cooling tower and heat source machine system |
| WO2010122649A1 (en) * | 2009-04-23 | 2010-10-28 | トヨタ自動車株式会社 | Controller of vehicle |
| JP2013096243A (en) * | 2011-10-28 | 2013-05-20 | Daihatsu Motor Co Ltd | Control device of internal combustion engine |
| WO2013105126A1 (en) * | 2012-01-10 | 2013-07-18 | トヨタ自動車株式会社 | Method for estimating power consumption of blower, vehicle control method that uses method for estimating power consumption of blower, and vehicle control device |
| CN105609808A (en) * | 2014-11-12 | 2016-05-25 | 丰田自动车株式会社 | Fuel cell system |
| EP2530273B1 (en) * | 2011-06-01 | 2020-04-08 | Joseph Vögele AG | Construction machine with automatic ventilator rotation speed regulator |
| CN113435643A (en) * | 2020-12-03 | 2021-09-24 | 广东电网有限责任公司广州供电局 | Virtual power plant load optimization scheduling device based on virtual unit subgroup |
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2001
- 2001-01-19 JP JP2001010905A patent/JP2002213242A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006342680A (en) * | 2005-06-07 | 2006-12-21 | Toyota Motor Corp | Cooling system of internal combustion engine |
| JP2008267246A (en) * | 2007-04-19 | 2008-11-06 | Toyota Motor Corp | Cooling device for internal combustion engine |
| JP2010060166A (en) * | 2008-09-01 | 2010-03-18 | Yazaki Corp | Cooling tower and heat source machine system |
| WO2010122649A1 (en) * | 2009-04-23 | 2010-10-28 | トヨタ自動車株式会社 | Controller of vehicle |
| EP2530273B1 (en) * | 2011-06-01 | 2020-04-08 | Joseph Vögele AG | Construction machine with automatic ventilator rotation speed regulator |
| JP2013096243A (en) * | 2011-10-28 | 2013-05-20 | Daihatsu Motor Co Ltd | Control device of internal combustion engine |
| WO2013105126A1 (en) * | 2012-01-10 | 2013-07-18 | トヨタ自動車株式会社 | Method for estimating power consumption of blower, vehicle control method that uses method for estimating power consumption of blower, and vehicle control device |
| JPWO2013105126A1 (en) * | 2012-01-10 | 2015-05-11 | トヨタ自動車株式会社 | Method for estimating power consumption of blower, vehicle control method using vehicle power consumption estimation method, and vehicle control device |
| CN105609808A (en) * | 2014-11-12 | 2016-05-25 | 丰田自动车株式会社 | Fuel cell system |
| JP2016095949A (en) * | 2014-11-12 | 2016-05-26 | トヨタ自動車株式会社 | Fuel cell system |
| KR101834618B1 (en) | 2014-11-12 | 2018-03-05 | 도요타지도샤가부시키가이샤 | Fuel cell system |
| CN113435643A (en) * | 2020-12-03 | 2021-09-24 | 广东电网有限责任公司广州供电局 | Virtual power plant load optimization scheduling device based on virtual unit subgroup |
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