JP4626161B2 - Cooling device for electric equipment mounted on vehicle - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a cooling device for an electric device mounted on a hybrid vehicle, an electric vehicle, a fuel cell vehicle, and the like, and more particularly to a device for cooling an electric device including a traveling battery and a power element such as an inverter or a DC / DC converter. .

  Electric vehicles equipped with a traction motor instead of an engine (including vehicles in which the traction motor is operated by a fuel cell) are being developed and put into practical use, and hybrid vehicles equipped with a traction motor in addition to the engine Has been developed and put into practical use. Such a vehicle includes a traveling battery that outputs driving power to the traveling motor. This traveling battery power source is, for example, a plurality of batteries connected in series, and outputs a high voltage of about 200 to 300 V necessary for driving the motor. From this traveling battery, DC power is supplied to the inverter unit, and three-phase AC power is supplied from the inverter unit to the traveling motor.

  In addition, even in such a vehicle, as in the case of a general vehicle that uses only an engine as a travel source, as a device that requires electric power, an electronic device (ECU (Electronic Control Unit), a lighting device, an air conditioner) is used. Equipped with auxiliary equipment such as Shona, Power Window, Audio). The electric power supplied to the auxiliary machine cannot be directly supplied from the high-voltage running battery because the operating voltage of the running motor and the auxiliary machine are different. Therefore, as with a general vehicle, an electric vehicle or a hybrid vehicle is mounted with a battery having a 12V output voltage (often a lead storage battery), and power is supplied to the auxiliary machine.

  In addition, a DC / DC converter that transforms the voltage value of the DC power is provided between the traveling battery and the 12V battery, and the power of the high voltage battery charged by the power generated by the motor generator during regenerative braking. There are also vehicles that step down the voltage and supply it to a 12V auxiliary machine or charge a 12V battery.

  Such an inverter unit and a DC / DC converter are configured to include an element that generates a large amount of heat, such as a power element. For this reason, it is necessary to cool the inverter unit, the DC / DC converter, and the like (hereinafter sometimes referred to as a power control unit or a PCU (Power Control Unit)). Moreover, since the battery for traveling also involves a chemical reaction during charging and discharging, it is necessary to cool the battery for preventing deterioration of the battery due to a high temperature state.

  Japanese Patent Laying-Open No. 2003-178815 (Patent Document 1) discloses a cooling device that cools a storage battery (battery) and can eliminate temperature variations among a plurality of storage batteries. When the high-voltage battery is below the specified upper limit temperature, this cooling device has a control duty value required from the temperature of the high-voltage battery and the amount of heat generated, and an acceptable noise level for the audibility of the cooling fan operating sound based on the vehicle speed If the circuit that controls the cooling fan by limiting it with the control duty value taking into account, the high-voltage battery, the motor drive inverter, and the DC / DC converter exceed the specified upper limit temperature, the enest cooling request value and the PCU cooling request value And a circuit for controlling the cooling fan so as not to deteriorate the performance of the high voltage battery, the motor driving inverter, and the DC / DC converter. In particular, in this cooling device, considering that the temperature of the inverter for driving the motor and the DC / DC converter is higher than the management temperature of the high voltage battery, the cooling air is forcibly distributed by one cooling fan, A cooling passage for cooling the motor drive inverter and the DC / DC converter with the cooling air after cooling the high voltage battery is provided.

According to this cooling apparatus, since the motor drive inverter and the DC / DC converter are cooled by the cooling air after the high voltage battery is cooled, the high voltage battery, the motor drive inverter and the DC / DC are saved with less energy (less cooling energy). The converter can be efficiently cooled.
JP 2003-178815 A

  However, according to the cooling device disclosed in Patent Document 1, the PCU is cooled by the cooling air whose temperature has increased due to heat exchange in the high voltage battery. Although it is considered preferable from the viewpoint of energy saving, it is conceivable that when the PCU is always cooled by exhaust air from a high voltage battery, including when the PCU becomes hot, the PCU becomes hot and stops functioning due to a temperature abnormality.

  On the other hand, a cooling system (cooling fan and cooling passage) for the high-voltage battery and a cooling system for the PCU may be separately provided, and the cooling system may be controlled separately (the operation state of the cooling fan is controlled). However, in such a configuration, the duty value of the high-voltage battery cooling fan is controlled in response to the cooling request from the high-voltage battery without being linked to each other, and the duty of the PCU cooling fan is responded to the cooling request from the PCU. The value is controlled. For this reason, the total air volume (high voltage battery cooling air volume + PCU cooling air volume) becomes too large, and the power consumption increases, ultimately deteriorating fuel consumption and increasing noise of the cooling fan.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is a cooling device that cools two or more electric devices mounted on a vehicle. In consideration of the above, it is an object of the present invention to provide a cooling device capable of accurately cooling each electric device and realizing energy saving.

  The cooling device according to the first invention cools two or more electric devices mounted on the vehicle. The flow rate of the cooling medium supplied to each electrical device can be controlled for each electrical device. The cooling device includes a supply unit for supplying a cooling medium to each electric device, a storage unit for storing a total flow rate of the cooling medium that can be supplied to the electric device by the supply unit, and a cooling request for each electric device. The acquisition means for acquiring, the calculation means for calculating the surplus flow rate by subtracting the flow rate corresponding to the cooling request required by the electrical equipment whose cooling request has increased from the total flow rate, and the cooling request has increased. If it is determined by the judging means for judging whether or not the flow rate corresponding to the cooling request required by other than the electric equipment is less than the surplus flow rate, and the judging means, the cooling request is Control means for controlling each supply means so as to increase the supply amount of the cooling medium to the increased electrical equipment and decrease the supply amount of the cooling medium to other than the electrical equipment whose cooling demand has increased. .

  According to the first invention, in the case of cooling two or more electric devices by controlling the supply means for supplying the cooling medium to each electric device, the cooling medium that can be supplied to each electric device by each supply means The total flow is defined and stored. In other words, since the upper limit is set for the total flow rate, even if the supply flow rate to any of the electrical devices increases, the overall flow rate does not exceed the overall flow rate, so that overall power consumption can be suppressed. Further, for example, when the temperature of a running battery, which is an example of an electric device, rises and the cooling request rises, the flow rate corresponding to the running battery cooling request is subtracted from the total flow rate to calculate a surplus flow rate. This surplus flow rate is a flow rate of the cooling medium that can be supplied to electrical equipment other than the battery for traveling. The flow rate corresponding to the cooling request of the PCU which is an example of the electric equipment other than the battery for traveling is less than the marginal flow rate. This means that the cooling request of the PCU is not high and the flow rate is within the range not exceeding the total flow rate. It shows that the supply flow rate of the cooling medium can be increased to the flow rate corresponding to the battery cooling request. In such a case, the supply amount of the cooling medium to the battery for traveling, which is an electric device for which the cooling request has increased, is increased, and the supply amount of the cooling medium to the PCU other than the electric device, for which the cooling request has been increased, is increased. Each supply means is controlled to decrease. As a result, it is a cooling device for cooling two or more electric devices mounted on a vehicle, and in consideration of mutual cooling requirements of each electric device, each electric device is accurately cooled and energy saving is realized. It is possible to provide a cooling device that can

  In addition to the configuration of the first invention, the cooling device according to the second invention further includes a distribution means for distributing the cooling medium discharged from the first electric device to the second electric device. The control means includes means for increasing the supply amount of the cooling medium to the second electrical device using the distribution means if the judgment means does not determine that the surplus flow rate is lower.

  According to the second invention, for example, when the temperature of the traveling battery, which is an example of the first electric device, rises and the cooling request increases, the flow rate corresponding to the cooling request for the traveling battery is subtracted from the total flow rate. A surplus flow is calculated. This surplus flow rate is the flow rate of the cooling medium that can be supplied to the second electrical device other than the battery for traveling. The fact that the flow rate corresponding to the cooling request of the PCU which is an example of the second electric device is not less than the marginal flow rate means that the cooling requirement of the PCU is not low. This indicates that it is impossible to increase the supply flow rate of the cooling medium to the flow rate corresponding to the cooling request of the traveling battery in a range where the cooling request of the traveling battery has risen but does not exceed the total flow rate. . In such a case, the supply amount of the cooling medium to the traveling battery, which is the first electric device whose cooling demand has been increased, is increased, and the cooling medium discharged from the traveling battery is distributed using the distribution means. Distribute to PCU. By doing so, the flow rate of the cooling medium supplied to the battery for traveling and the flow rate of the cooling medium supplied to the PCU should be ensured to satisfy the respective cooling requirements without exceeding the upper limit of the total flow rate. Can do. Conversely, when the temperature of the PCU, which is an example of the second electric device, rises and the cooling request rises, the flow rate corresponding to the PCU cooling request is subtracted from the total flow rate to calculate the surplus flow rate. This marginal flow rate is the flow rate of the cooling medium that can be supplied to the first electrical device other than the PCU. The fact that the flow rate corresponding to the cooling request for the traveling battery, which is an example of the first electric device, is not less than this marginal flow rate means that the cooling request for the traveling battery is not low. This indicates that the cooling medium supply flow rate cannot be increased to a flow rate corresponding to the PCU cooling request within a range where the PCU cooling request has risen but does not exceed the total flow rate. In such a case, the cooling medium discharged from the traveling battery is distributed to the PCU using the distribution means. By doing so, the flow rate of the cooling medium supplied to the battery for traveling and the flow rate of the cooling medium supplied to the PCU should be ensured to satisfy the respective cooling requirements without exceeding the upper limit of the total flow rate. Can do.

  In the cooling device according to the third invention, in addition to the configuration of the second invention, the first electric device is a power storage mechanism in which electric power for running the vehicle is stored, and the second electric device Is an electric device including a heating element.

  According to the third aspect of the present invention, the power storage mechanism in which the power for driving the vehicle is stored and the electric device including the power element such as an inverter unit that supplies power to the travel motor from the power storage mechanism are accurately cooled. In addition, energy saving can be realized.

  In the cooling device according to the fourth invention, in addition to the configuration of the second invention, the first electrical device is a battery in which electric power for running the vehicle is stored, and the second electrical device is An electric device including at least one of an inverter unit and a DC / DC converter.

  According to the fourth invention, a battery in which electric power for driving the vehicle is stored and an electric device including a power element such as an inverter unit or a DC / DC converter that supplies electric power from the battery to the driving motor are accurately obtained. In addition to cooling, energy saving can be realized.

  In the cooling device according to the fifth invention, in addition to the configuration of any one of the first to fourth inventions, the supply means is a cooling fan, and the cooling medium is air.

  According to the fifth aspect of the invention, it is possible to realize an air cooling device that can accurately cool the electrical equipment and realize energy saving. Further, since the total air volume is restricted at the upper limit, the noise of the cooling fan can also be restricted.

  In the cooling device according to the sixth invention, in addition to the configuration of any one of the first to fourth inventions, the supply means is a pump, and the cooling medium is a liquid.

  According to the sixth aspect of the invention, it is possible to realize a liquid cooling device that can accurately cool the electrical equipment and realize energy saving. Further, since the total air volume is regulated at the upper limit, the pump noise can also be regulated.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  With reference to FIG. 1, the block diagram which shows the whole structure of the cooling device which concerns on this Embodiment is demonstrated. In the following description, it is assumed that there are two electric devices mounted on the vehicle, that is, the battery 100 and the PCU 200, but the present invention is limited to the case where such two electric devices are mounted. It is not a thing.

  Referring to FIG. 1, this cooling device is a cooling device that cools battery 100 and PCU 200, respectively.

  The battery 100 includes therein a sensor that detects the temperature of the battery 100, a sensor that detects the voltage of the battery 100, and a sensor that detects the charge / discharge current of the battery 100, and the temperature and voltage values detected by these sensors. The current value is input to a battery ECU (Electronic Control Unit) 110.

  The PCU 200 is an electric device including, for example, an inverter unit and a DC / DC converter. Inside the PCU 200, a sensor that detects the temperature inside the PCU 200 and a voltage of the inverter unit and the DC / DC converter are detected. Sensors and sensors that detect current values of the inverter unit and the DC / DC converter are provided, and the temperature, voltage value, and current value of the PCU 200 detected by these sensors are input to the PCU_ECU 210.

  Battery ECU 110 creates a cooling request signal based on the temperature of battery 100, the voltage value of battery 100, and the charge / discharge current value of battery 110, and outputs the cooling request signal to fan controller 300. PCU_ECU 210 creates a cooling request signal based on the temperature, voltage value, and current value of PCU 200 and outputs the cooling request signal to fan control controller 300. In addition to these functions, the battery ECU 110 calculates the remaining capacity of the battery 100 and performs charge / discharge control of the battery. PCU_ECU 210 also controls the inverter unit and DC / D converter inside PCU 200.

  The fan control controller 300 executes a program to be described later, and outputs a control duty to the fan 120 on the battery 100 side and the fan 220 on the PCU 200 side, and outputs an opening / closing command signal to the switching valves 160 and 170.

  Further, the cooling passage will be described with reference to FIG. In the present embodiment, the cooling medium is assumed to be air and the fan is assumed to be a cooling medium supply unit.However, the present invention is not limited to this, and the cooling medium may be a liquid. A pump may be used instead of the fan.

  The cooling passage on the battery 100 side is provided in a cooling air intake passage 130 connected to the fan 120, a cooling air passage 140 provided between the fan 120 and the battery 100, and a cooling air exhaust port of the battery 100. And a cooling air exhaust passage 150. The cooling path on the PCU 200 side is provided in a cooling air intake path 230 connected to the fan 220, a cooling air path 240 provided between the fan 220 and the PCU 200, and a cooling air exhaust port of the PCU 200. And a cooling air exhaust passage 250. In addition, a communication passage 190 is provided in the middle of the cooling air exhaust passage 150 on the battery 100 side to distribute the cooling air to the cooling air 240 on the PCU 200 side. A check valve 180 is provided in the middle of the communication passage 190 so that the cooling air can flow from the battery 100 side to the PCU 200 side, but the cooling air does not flow in the opposite direction. Further, a switching valve 160 is provided in the middle of the cooling air exhaust passage 150 on the battery 100 side, and a switching valve 170 is provided in the middle of the communication passage 190. The switching valve 160 and the switching valve 170 are controlled to be opened and closed by the fan controller 300. The state shown in FIG. 1 shows the state of the switching valve 160 and the switching valve 170 in which the cooling air discharged from the cooling air exhaust port of the battery 100 is supplied to the PCU 200 side. Note that the functions of the switching valve 160 and the switching valve 170 may be realized by a single switching valve.

  Both the fan 120 on the battery 100 side and the fan 220 on the PCU 200 side can control the rotational speed of the motor that rotates the fan 120 and the fan 220 linearly, for example, based on the control duty from the fan controller 300. As a result, the flow rate of the cooling air supplied from the fan 120 and the fan 220 to the battery 100 and the PCU 200 can be controlled.

  With reference to FIG. 2, a control structure of a program executed by fan control controller 300 of FIG. 1 will be described. In addition, the code | symbol of the air volume used in the following description is demonstrated previously. The air volume is expressed as V (αβ). “Α” is any one of T, B, and P. T represents the total air volume (Total). B represents a battery. P represents PCU (PCU). Any one of P, D, and U is used for [β]. P represents possible air volume (Possible). D represents the required air volume (Demand). U represents an upper airflow value (Upper limit).

  At step (hereinafter, step is abbreviated as S) 100, fan controller 300 calculates total air volume V (TP) that can be supplied. At this time, the total air volume V (TP) that can be supplied = battery cooling air volume V (BP) + PCU cooling air volume V (PP) is calculated.

In S110, fan control controller 300 determines whether or not an increase request for battery cooling air volume V (B) to battery ECU 110 has been detected. That is, it is determined whether or not the battery cooling air volume V (B) has changed to the battery cooling required air volume V ( BD ). When cooling air volume V (B) of battery 100 increases to battery cooling request air volume V (BD) (YES in S110), the process proceeds to S120. If not (NO in S110), the process proceeds to S150.

  In S120, fan control controller 300 calculates PCU-suppliable upper limit air volume V (PU). At this time, it is calculated as PCU-suppliable upper limit air volume V (PU) = V (TP) −V (BD).

  In S130, fan control controller 300 determines whether or not PCU-suppliable upper limit air volume V (PU)> PCU cooling request air volume V (PD). If PCU-suppliable upper limit air volume V (PU)> PCU cooling request air volume V (PD) (YES in S130), the process proceeds to S140. If not (NO in S130), the process proceeds to S190.

  In S140, fan control controller 300 outputs a control duty to fan 120 such that the amount of battery cooling air from fan 120 on the battery 100 side increases from V (B) to V (BD). In addition, the fan controller 300 outputs a control duty to the fan 220 so that the cooling air amount of the PCU 200 by the fan 220 on the PCU 200 side decreases from V (P) to V (PD).

  In S150, fan control controller 300 determines whether or not a request for increase in cooling request air volume V (P) of PCU 200 has been detected. That is, it is determined whether or not the PCU cooling air volume V (P) has changed to the PCU cooling required air volume V (PD). When cooling air volume V (P) of PCU 200 increases to PCU cooling required air volume V (PD) (YES in S150), the process proceeds to S160. Otherwise (NO in S150), this process ends.

  In S160, fan control controller 300 calculates a battery-suppliable upper limit air volume V (BU). At this time, the battery supplyable upper limit air volume V (BU) = V (TP) −V (PD) is calculated.

  In S170, fan controller 300 determines whether or not battery supply upper limit air volume V (BU)> battery cooling required air volume V (BD). If battery supplyable upper air volume V (BU)> battery cooling request air volume V (BD) (YES in S170), the process proceeds to S180. If not (NO in S170), the process proceeds to S190.

  In S180, fan control controller 300 outputs a control duty to fan 220 so that the PCU cooling air volume by fan 220 on PCU 200 side increases from V (P) to V (PD). The fan controller 300 also outputs a control duty to the fan 120 so that the amount of battery cooling air from the fan 120 on the battery 100 side decreases from V (B) to V (BD).

  At S190, fan control controller 300 outputs an open / close command signal to switching valves 160 and 170 so as to supply exhaust from battery 100 to PCU 200. Thus, the cooling air is supplied to the PCU 200 through the communication passage 190 branched from the cooling air exhaust passage 150 of the battery 100.

  In the above description, V (B) <V (BD) <V (BP) and V (P) <V (PD) <V (PP).

  The operation of the cooling device according to the present embodiment based on the above-described structure and flowchart will be described.

  While the vehicle is running, the battery 100 is charged and discharged, the temperature of the battery 100 rises, and an inverter unit and a DC / DC converter provided in the PCU 200 are operated to generate heat by the power element. The internal temperature rises. Battery ECU 110 and PCU_ECU 210 output a cooling request signal to fan control controller 300 based on the temperature of battery 100, the temperature of PCU 200, and the like.

  In the fan controller 300, the total air volume V (TP) that can be supplied is calculated and stored. The total air volume V (TP) that can be supplied is calculated by battery cooling air volume V (BP) + PCU cooling air volume V (PP). That is, both the battery 110 side and the PCU 200 side calculate the total air volume V (TP) that can be supplied by adding the upper air volume that can be supplied.

[When temperature rise of battery 100 occurs]
When the charge / discharge current value of the battery 100 rises and the temperature of the battery 100 rises, a cooling request signal is transmitted from the battery ECU 110 to the fan control controller 300, and an increase request for the battery air volume V (B) is detected (S110). . At this time, V (BD) is detected as the battery cooling request air volume. By subtracting the battery cooling request air volume V (BD) from the total air volume V (TP) that can be supplied, the upper limit air volume (PU) that can be supplied by the PCU is calculated (S120).

  If PCU-suppliable upper limit air volume V (PU) is larger than PCU cooling request air volume V (PD) (YES in S130), it indicates that the cooling air volume on PCU 200 side can be saved. Therefore, the battery cooling air volume by the fan 120 on the battery 100 side is increased from V (B) to V (BD). Also, since the cooling air volume can be saved on the PCU 200 side, the PCU cooling air volume by the fan 220 on the PCU 200 side is lowered from V (P) to V (PD).

  When PCU-suppliable upper limit air volume V (PU) is equal to or less than PCU cooling air volume V (PD) (NO in S130), switching valve 160 and switching valve are configured to supply exhaust from battery 100 to PCU 200. 170 is switched (S190).

[When the temperature of PCU 200 rises]
When the temperature of the PCU 200 rises, a cooling request signal is output from the PCU_ECU 210 to the fan controller 300, and an increase request for the PCU cooling air volume V (P) is detected (S150). At this time, V (PD) is detected as the PCU cooling required air volume. By subtracting the PCU cooling request air volume V (PD) from the total air volume V (TP) that can be supplied, the battery supply upper limit air volume V (BU) is calculated (S160).

  If battery-suppliable upper limit air volume V (BU) is larger than battery cooling request air volume V (BD) (YES in S170), it indicates that the cooling air volume on battery 100 side can be saved. Therefore, the PCU cooling air volume is increased from V (P) to V (PD) by the fan 220 on the PCU 200 side. Further, since the cooling air volume can be saved on the battery 100 side, the battery cooling air volume by the fan 100 on the battery 100 side is lowered from V (B) to V (BD).

  When battery supply upper limit air volume V (BU) is equal to or lower than battery cooling request air volume V (BD) (NO in S170), switching valve 160 and switching are performed so as to supply exhaust from battery 100 to PCU 200. Valve 170 is switched.

  As described above, according to the cooling device of the present embodiment, the upper limit value of the total air volume that can be supplied to the battery and the PCU is calculated as the total air volume. A value obtained by subtracting each required air volume from the total air volume is calculated as an upper limit air volume that can be supplied in another device. When the calculated supply upper limit air volume is larger than the required air volume, the flow rate of the cooling air to the electrical equipment that has been requested to increase the cooling air volume is increased and the electrical equipment that can be saved is cooled. The air volume can be lowered, and two electric devices that require cooling can be linked and cooled. Further, when the cooling request air volume is larger than the upper limit air volume that can be obtained from the total air volume that can be supplied, in order to avoid exceeding the total air volume, the switching valve is configured to supply the exhaust from the battery to the PCU. The cooling duty to the PCU is not increased by increasing the control duty of the fan of the PCU and increasing the rotational speed of the fan to increase the amount of cooling air to the PCU but by supplying the exhaust from the battery to the PCU. Respond by increasing the air volume. As a result, it is a cooling device that cools two or more electric devices mounted on a vehicle. In consideration of the mutual cooling requirements of each electric device, each electric device is accurately cooled and energy saving is realized. It is possible to provide a cooling device that can be used.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a block diagram which shows the whole structure of the cooling device which concerns on embodiment of this invention. 2 is a control structure of a program executed by the fan control controller of FIG. 1.

Explanation of symbols

  100 battery, 110 battery ECU, 120, 220 fan, 130, 230 cooling air intake passage, 140, 240 cooling air passage, 150, 250 cooling air exhaust passage, 160, 170 switching valve, 180 check valve, 190 communication passage , 200 PCU, 210 PCU_ECU, 300 Fan control controller.

Claims (6)

A cooling device for cooling two or more electric devices mounted on a vehicle, wherein a flow rate of a cooling medium supplied to each electric device is controllable for each electric device,
Supply means provided for each of the electrical devices for supplying a cooling medium to the electrical devices ;
Storage means for storing the total flow rate of the two or more electrical devices, the flow rate of the cooling medium that can be supplied to the corresponding electrical device by the supply unit;
Acquisition means for acquiring a cooling request for each of the electrical devices;
A calculation means for calculating a surplus flow rate by subtracting a flow rate corresponding to a cooling request required by the electrical equipment whose cooling request has increased from the total flow rate;
A determination means for determining whether or not a flow rate corresponding to a cooling request requested by a device other than the electrical device for which the cooling request has increased is less than the marginal flow rate;
If it is determined by the determination means that the flow rate corresponding to the cooling request requested by a device other than the electrical device for which the cooling request has increased is below the marginal flow rate, the cooling medium to the electrical device for which the cooling request has been increased Control means for controlling each of the supply means so as to increase the supply amount so as to reduce the supply amount of the cooling medium to other than the electrical equipment for which the cooling request has increased. Equipment cooling device. The cooling device further includes distribution means for distributing the cooling medium discharged from the first electric device to the second electric device,
If it is not determined by the determination means that the flow rate corresponding to the cooling request requested by a device other than the electrical device for which the cooling request has increased is less than the marginal flow rate , the control means uses the distribution means to The cooling device according to claim 1, comprising means for increasing a supply amount of a cooling medium to the electrical equipment. The first electrical device is a power storage mechanism that stores power for running the vehicle,
The cooling device according to claim 2, wherein the second electric device is an electric device including a heating element. The first electric device is a battery in which electric power for running the vehicle is stored,
The cooling device according to claim 2, wherein the second electric device is an electric device including at least one of an inverter unit and a DC / DC converter. The supply means is a cooling fan,
The cooling device according to claim 1, wherein the cooling medium is air. The supply means is a pump,
The cooling device according to claim 1, wherein the cooling medium is a liquid.

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