WO2017082198A1

WO2017082198A1 - Battery warm-up system

Info

Publication number: WO2017082198A1
Application number: PCT/JP2016/082943
Authority: WO
Inventors: 功嗣三浦; 山中　隆; 加藤　吉毅; 竹内　雅之; 憲彦榎本; 慧伍佐藤; 賢吾杉村; マラシガンアリエル
Original assignee: 株式会社デンソー
Priority date: 2015-11-09
Filing date: 2016-11-07
Publication date: 2017-05-18

Abstract

A battery warm-up mode for controlling at least one of an air conditioner fan 106 and a battery fan 107 is executed so that the air side temperature efficiency of an air conditioner heat exchanger 102 becomes higher than the air side temperature efficiency of a battery heat exchanger 103.

Description

Battery warm-up system

Cross-reference of related applications

This application is based on Japanese Patent Application No. 2015-219621 filed on November 9, 2015 and Japanese Patent Application No. 2016-196184 filed on October 4, 2016. Claims the benefit of that priority, the entire contents of which are incorporated herein by reference.

This disclosure relates to a battery warm-up system.

As a battery warming-up system that warms up a battery mounted on a vehicle mainly in the initial stage of startup, a battery described in Patent Document 1 below is known. The battery warm-up system described in Patent Document 1 below is a refrigeration cycle apparatus, and adjusts the air temperature sent out for battery warm-up while adjusting the air temperature sent out to the air-conditioning target space.

The refrigeration cycle apparatus described in Patent Literature 1 below includes a blower air heat exchanger that heats indoor blown air that is blown into the vehicle interior using the refrigerant discharged from the compressor as a heat source, and a blown air heat exchanger. A high-stage expansion valve that depressurizes the refrigerant that has flowed out, and a battery heat exchanger that heats battery air blown to the battery using the refrigerant decompressed by the high-stage expansion valve as a heat source. The refrigeration cycle apparatus controls the refrigerant discharge capacity of the compressor so that the blown air temperature of the indoor blown air approaches the target blowout temperature in the indoor heating + electric warm-up mode, and the battery temperature, which is the battery temperature, is determined in advance. The throttle opening degree of the high stage side expansion valve is controlled so as to be within the reference temperature range.

JP 2014-37959 A

In Patent Document 1, a high-stage expansion valve is provided between a blower air heat exchanger and a battery heat exchange in order to produce a two-temperature refrigerant. Therefore, for example, when a system that includes a high-temperature side water circuit and a refrigerant circuit and supplies water to the two heat exchangers using water that has been exchanged heat with a water-cooled condenser provided in the refrigerant circuit is adopted. Can not respond.

The present disclosure provides a battery warm-up system that can increase the degree of freedom in an aspect in which a refrigerant or a fluid is supplied to a heat exchanger for air conditioning and a heat exchanger for battery, and can appropriately warm up the battery. For the purpose.

The present disclosure relates to a battery warm-up system, which includes a compressor (112) that compresses and discharges a refrigerant, and a refrigerant discharged from the compressor or a fluid that exchanges heat with the refrigerant as a heat source. Heat exchanger for air conditioning (102) that heats the air-conditioning air flow that is sent out, and heat for the battery that heats the battery air flow that is sent to the battery using the refrigerant discharged from the compressor or the fluid exchanged with the refrigerant as a heat source An exchanger (103), an air-conditioning fan (106) that generates an air-conditioned air flow that passes through the air-conditioning heat exchanger, and a battery fan (107) that generates battery air that passes through the battery heat exchanger; And a control device (13) for controlling the air conditioner blower and the battery blower. The control device is a battery warm-up mode that controls at least one of the air-conditioning blower and the battery blower so that the air-side temperature efficiency in the air-conditioning heat exchanger is higher than the air-side temperature efficiency in the battery heat exchanger. Execute.

According to the present disclosure, by executing the battery warm-up mode, it is possible to change the outlet temperature of each heat exchanger while supplying a fluid having the same temperature to the heat exchanger for air conditioning and the heat exchanger for battery. Air supply for supplying air at a high temperature and air supply for batteries that do not require high-temperature air can be made compatible.

FIG. 1 is a diagram showing a configuration of a battery warm-up system according to the first embodiment of the present invention. FIG. 2 is a diagram illustrating an example in which the battery warm-up system according to the first embodiment of the present invention is mounted on a vehicle. FIG. 3 is a timing chart showing changes in temperature and wind speed of each part when the battery warm-up system shown in FIG. 1 is operated. FIG. 4 is a diagram showing a configuration of a battery warm-up system according to the second embodiment of the present invention. FIG. 5 is a timing chart showing changes in temperature and wind speed of each part when the battery warm-up system shown in FIG. 4 is operated. FIG. 6 is a diagram showing a configuration of a battery warm-up system according to a modification of the first embodiment of the present invention. FIG. 7 is a diagram illustrating a configuration of a battery warm-up system according to a modification of the first embodiment of the present invention. FIG. 8 is a diagram showing a configuration of a battery warm-up system according to a modification of the first embodiment of the present invention. FIG. 9 is a diagram showing a configuration of a battery warm-up system according to a modification of the first embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

As shown in FIG. 1, the battery warm-up system 1 according to the first embodiment includes a high-temperature side water circuit 10, a refrigerant circuit 11, a low-temperature side water circuit 12, and a control device 13.

The high-temperature water circuit 10 includes a water-cooled condenser 101, an air conditioning heat exchanger 102, a battery heat exchanger 103, a pump 104, a water temperature sensor 105, an air conditioning fan 106, and a battery fan 107. I have.

In the high temperature side water circuit 10, the warm water generated by the water-cooled condenser 101 is distributed to the air conditioning heat exchanger 102 and the battery heat exchanger 103, and the air conditioning heat exchanger 102 and the battery heat exchanger. 103 is arranged in parallel. A pump 104 is provided on the upstream side of the water-cooled condenser 101. By driving the pump 104, the water in the high temperature side water circuit 10 circulates.

The water temperature sensor 105 is a sensor for measuring the outlet water temperature of the water-cooled condenser 101. The air conditioner blower 106 sends air into the air conditioner heat exchanger 102. The air sent to the air conditioning heat exchanger 102 is heat-exchanged by the air conditioning heat exchanger 102 and sent into the passenger compartment. In this embodiment, the temperature efficiency of the heat exchange in the heat exchanger 102 for air conditioning is adjusted by adjusting the air flow rate of the air blower 106 for air conditioning. The air-conditioning heat exchanger 102 heats the air-conditioned air flow sent to the air-conditioning target space using a refrigerant discharged from a compressor as a compressor or a fluid exchanged with the refrigerant as a heat source. Of the temperature efficiencies in the air-conditioning heat exchanger 102, the air-side temperature efficiency η is obtained by the following equation, assuming that the air inlet temperature Ta_in, the air outlet temperature Ta_out, and the water inlet temperature Tw_in. This relationship is the same in other heat exchangers, and is the same even if the refrigerant is other than water.
η = (Ta_out−Ta_in) / (Tw_in−Ta_in)

The battery blower 107 sends air into the battery heat exchanger 103. The air sent to the battery heat exchanger 103 exchanges heat with the battery heat exchanger 103 and is sent to the battery. In this embodiment, the temperature efficiency of the heat exchange in the battery heat exchanger 103 is adjusted by adjusting the amount of air blown from the battery blower 107. The battery heat exchanger 103 heats a battery air stream sent to the battery using a refrigerant discharged from a compressor as a compressor or a fluid exchanged with the refrigerant as a heat source.

The refrigerant circuit 11 includes a chiller 111, a compressor 112, a water-cooled condenser 101, and an expansion valve 113. The high-temperature refrigerant pumped by the compressor 112 as a compressor that compresses and discharges the refrigerant exchanges heat with water in the high-temperature side water circuit 10 by the water-cooled condenser 101. The refrigerant that has exchanged heat with the water-cooled condenser 101 goes to the chiller 111 via the expansion valve 113. The refrigerant exchanges heat with water flowing in the low temperature side water circuit 12 in the chiller 111.

The low temperature side water circuit 12 includes an LT radiator 121 serving as an endothermic heat exchanger, a chiller 111, and a pump 122. The water absorbed by the LT radiator 121 is sent to the chiller 111 by the pump 122 and exchanges heat with the refrigerant in the chiller 111.

The control device 13 outputs a drive signal for driving each of the pump 104, the air-conditioning blower 106, the battery blower 107, the compressor 112, and the pump 122. Water temperature information acquired by the water temperature sensor 105 is output to the control device 13.

As shown in FIG. 2, the air-conditioning air flow sent from the air-conditioning blower 106 to the air-conditioning heat exchanger 102 is configured to be sent as battery air-flow to the battery heat exchanger 103 by the battery blower 107. ing. In the case of the present embodiment, the air-conditioning blower 106 and the battery blower 107 are so-called push-type blowers, but a so-called suction-type blower may be used.

Subsequently, the control of the control device 13 will be described with reference to FIG. When the battery warm-up system 1 is started to operate, the compressor 112 and the

pumps

104 and 122 are started to operate. As shown in FIG. 3A, the outlet temperature of the water-cooled condenser 101 gradually increases. It is necessary to increase the temperature of the battery in the initial stage of startup. In addition, since the air temperature required for heating the vehicle interior is higher than the warm-up temperature required for battery warm-up, heat is used for heating the vehicle interior during periods when the outlet temperature of the water-cooled condenser 101 is not so high at the beginning of startup. It is preferable to use heat for warming up the battery rather than doing so.

Therefore, in this embodiment, as shown in FIG. 3E, only the battery blower 107 is driven in accordance with the activation of the battery warm-up system 1. At time t1 from the start of startup, heat exchange is performed only in the battery heat exchanger 103, so that the outlet air temperature of the battery heat exchanger 103 rises as shown in FIG. As shown in (B), the temperature of the battery rises.

When time t1 is reached, the outlet temperature of the water-cooled condenser 101 further rises, so the air-conditioning blower 106 is driven. On the other hand, the temperature efficiency in the air conditioner heat exchanger 102 is adjusted to be higher than the temperature efficiency in the battery heat exchanger 103. Air supply for air conditioning that wants to supply air at a higher temperature and air supply for batteries that do not require high-temperature air can be made compatible.

When the time t2 is reached, the battery warm-up is completed, so the battery blower 107 is stopped. Completion of battery warm-up is a state in which an output for running can be obtained from the battery, and the effect of heat insulation or warm-up can be obtained by self-heating due to charging / discharging of the battery.

When the time t3 is reached, the outlet temperature of the water-cooled condenser 101 is further increased, so that the air speed of the air-conditioning blower 106 can be further increased, and air having a necessary temperature and air volume can be supplied into the vehicle interior.

As described above, in the first embodiment, the control device 13 is configured so that the air-side temperature efficiency in the air-conditioning heat exchanger 102 is higher than the air-side temperature efficiency in the battery heat exchanger 103 and A battery warm-up mode for controlling the battery blower 107 is executed. By executing this battery warm-up mode, it is possible to change the outlet temperature of each heat exchanger while supplying the same temperature fluid to the air conditioner heat exchanger 102 and the battery heat exchanger 103. It is possible to achieve both air supply for supplying air and air for batteries that do not require high-temperature air.

In the battery warm-up mode, the control device 13 controls the air conditioning air flow so that the wind speed of the battery air flow passing through the battery heat exchanger 103 is faster than the wind speed of the air conditioning air flow passing through the air conditioning heat exchanger 102. At least one of the blower 106 and the battery blower 107 is adjusted. In general, if the inlet water temperature and the inlet air temperature of the heat exchanger are the same, the outlet air temperature relatively decreases as the wind speed increases, and the outlet air temperature increases relatively as the wind speed decreases. . Accordingly, since the inlet water temperature of the air conditioner heat exchanger 102 and the inlet water temperature of the battery heat exchanger 107 are substantially the same, the battery heat exchanger is used rather than the wind speed of the air-conditioning air flow passing through the air conditioner heat exchanger 102. When adjustment is made so that the wind speed of the battery air flow passing through 103 becomes faster, the outlet air temperature of the battery heat exchanger 103 becomes lower than the outlet air temperature of the air conditioning heat exchanger 102. The air speed of the air-conditioning air flow passing through the air-conditioning heat exchanger 102 and the air speed of the battery air-flow of the battery heat exchanger 103 are such that the temperature of the air-conditioning air flow is higher than the temperature of the battery air-flow. Any method may be used as long as it is appropriate. As described above, from time t1 to time t2, the wind speed sent out by the battery blower 107 is driven so as to be relatively higher than the wind speed sent out by the air conditioning blower 106, so the amount of heat necessary for starting the battery is supplied. can do.

In the battery warm-up mode, the controller 13 starts the battery blower 107 from the stage where the temperature of the refrigerant or fluid flowing in the battery heat exchanger 103 is lower than the temperature of the refrigerant or fluid flowing in the air conditioning heat exchanger 102. To drive. As described above, since the battery fan 107 is driven from the state where the temperature of the refrigerant or water is low by starting to drive the compressor 112, the battery warm-up can be completed quickly.

When the control device 13 executes the battery warm-up mode and determines that the battery has reached the target temperature, the control device 13 controls the battery blower 107 so that the wind speed of the battery air flow passing through the battery heat exchanger 103 decreases. . As described above, when the battery warm-up mode is executed and it is determined that the battery has reached the target temperature, the wind speed of the battery air flow passing through the battery heat exchanger 103 is reduced and stopped, so that the excess A lot of heat can be used for indoor air conditioning without using heat for battery warm-up.

Subsequently, a battery warm-up system 1A according to the second embodiment will be described with reference to FIG. Compared to the battery warm-up system 1 according to the first embodiment, the battery warm-up system 1 </ b> A has a three-way valve 108 added to the high-temperature side water circuit 10. The control device 13 can adjust the amount of water flowing into the air-conditioning heat exchanger 102 and the amount of water flowing into the battery heat exchanger 103 by controlling the opening of the three-way valve 108.

Subsequently, the control of the control device 13 in the second embodiment will be described with reference to FIG. When the battery warming-up system 1A is started to operate, the compressor 112 and the

pumps

104 and 122 are started to operate. As shown in FIG. 5A, the outlet temperature of the water-cooled condenser 101 gradually increases. It is necessary to increase the temperature of the battery in the initial stage of startup. In addition, since the air temperature required for heating the vehicle interior is higher than the warm-up temperature required for battery warm-up, heat is used for heating the vehicle interior during periods when the outlet temperature of the water-cooled condenser 101 is not so high at the beginning of startup. It is preferable to use heat for warming up the battery rather than doing so.

Therefore, in this embodiment, as shown in FIG. 5E, only the battery blower 107 is driven in accordance with the activation of the battery warm-up system 1A. Further, the three-way valve 108 is adjusted so that water flows only into the battery heat exchanger 103. At time t1 from the start of startup, heat exchange is performed only in the battery heat exchanger 103, so that the outlet air temperature of the battery heat exchanger 103 rises as shown in FIG. As shown in (B), the temperature of the battery rises.

When time t1 is reached, the outlet temperature of the water-cooled condenser 101 further rises, so the air-conditioning blower 106 is driven. Further, the three-way valve 108 is adjusted and controlled so that water flows into the battery heat exchanger 103 and the air conditioning heat exchanger 102. On the other hand, the temperature efficiency in the air conditioner heat exchanger 102 is adjusted to be higher than the temperature efficiency in the battery heat exchanger 103. From time t1 to time t2, the amount of heat required for starting the battery can be supplied by driving the wind speed sent out by the battery blower 107 to be relatively higher than the wind speed sent out by the air conditioning blower 106. . Furthermore, from time t1 to time t2, the amount of water flowing into the air conditioning heat exchanger 102 is made larger than the amount of water flowing into the battery heat exchanger 103. Generally, if the inlet water temperature and the inlet air temperature of the heat exchanger are the same, the outlet air temperature will rise relatively if the flow rate of water increases, and the outlet air temperature will become relatively higher if the flow rate of water decreases. Descend. Therefore, from time t1 to time t2, the temperature efficiency in the air-conditioning heat exchanger 102 is higher than the temperature efficiency in the battery heat exchanger 103 from the viewpoints of wind speed adjustment and water volume adjustment. It has been adjusted. Air supply for air conditioning that wants to supply air at a higher temperature and air supply for batteries that do not require high-temperature air can be made compatible.

When the time t2 is reached, the rotational speed of the air conditioning fan 106 is increased so that the amount of air sent from the air conditioning fan 106 is further increased. The three-way valve 108 is adjusted to reduce the amount of water flowing into the battery heat exchanger 103 and reduce the amount of water flowing into the air conditioning heat exchanger 102.

When time t3 is reached, the battery warm-up is completed, so the battery blower 107 is stopped and the supply of water to the battery heat exchanger 103 is also stopped. Completion of battery warm-up is a state in which an output for running can be obtained from the battery, and the effect of heat insulation or warm-up can be obtained by self-heating due to charging / discharging of the battery. When the time t3 is reached, the outlet temperature of the water-cooled condenser 101 further increases, so that the amount of water flowing into the air-conditioning heat exchanger 102 can be further increased, and air having a required temperature and air volume can be supplied into the vehicle interior.

In the second embodiment described above, as an air conditioning adjustment unit that adjusts the amount of refrigerant or fluid that flows through the air conditioning heat exchanger 102 and a battery adjustment unit that adjusts the amount of refrigerant or fluid that flows through the battery heat exchanger 103. A functioning three-way valve 108 is provided. The control device 13 is configured to control the air conditioner fan 106, the battery fan 107, and the three-way valve 108. The controller 13 controls the air conditioner fan 106, the battery fan 107, and the three-way valve 108 so that the air side temperature efficiency in the air conditioner heat exchanger 102 is higher than the air side temperature efficiency in the battery heat exchanger 103. A battery warm-up mode for controlling at least one is executed.

In addition to or instead of adjusting the amount of air sent to the air conditioning heat exchanger 102 and the battery heat exchanger 103, the amount of water sent to the air conditioning heat exchanger 102 and the battery heat exchanger 103 is adjusted. Heat can be used efficiently.

In the second embodiment, the control device 13 causes the amount of refrigerant or fluid sent to the battery heat exchanger 103 to be smaller than the amount of refrigerant or fluid sent to the air conditioning heat exchanger 102 in the battery warm-up mode. Then, the three-way valve 108 is adjusted. The adjustment of the three-way valve 108 corresponds to the adjustment of the delivery amount of at least one of the air conditioning adjustment unit and the battery adjustment unit in the present invention. In the second embodiment, from time t1 to time t2 and from time t2 to time t3, the amount of water fed into the battery heat exchanger 103 is less than the amount of water fed into the air conditioning heat exchanger 102. In addition, the three-way valve 108 is adjusted. By adjusting the amount of water fed in this way, it is possible to achieve both air supply for supplying air at a higher temperature and air supply for batteries that do not require air at a very high temperature.

In the second embodiment, in the battery warm-up mode, the controller 13 starts from a stage where the temperature of the refrigerant or fluid flowing in the battery heat exchanger 103 is lower than the temperature of the refrigerant or fluid flowing in the air-conditioning heat exchanger 102. At least one of the air conditioner blower 106, the battery blower 107, and the three-way valve 108 is controlled so that the battery heat exchanger 103 starts to exchange heat. Since the compressor 112 is started and water is supplied to the battery heat exchanger 103 while driving the battery blower 107 from a state in which the temperature of the refrigerant or water is low, the battery warm-up can be completed quickly.

In the second embodiment, when the control device 13 executes the battery warm-up mode and determines that the battery has reached the target temperature, the battery blower 107 so that the wind speed of the battery air passing through the battery heat exchanger 103 decreases. Or the three-way valve 108 is controlled so that the amount of refrigerant or fluid sent to the battery heat exchanger 103 is reduced. When the battery warm-up mode is executed and it is determined that the battery has reached the target temperature, the wind speed of the battery air passing through the battery heat exchanger 103 is reduced and stopped, and the battery heat exchanger Since the supply of water to 103 is stopped, more heat can be used for indoor air conditioning without using heat for extra battery warm-up.

In the first embodiment and the second embodiment, the control device 13 executes the battery warm-up mode when the discharge is started from the battery. If this battery warm-up

system

1, 1 </ b> A is mounted on a vehicle, the case where the battery starts discharging is when the ignition switch is turned on.

In the first embodiment and the second embodiment, the control device 13 executes the battery warm-up mode when the temperature of the refrigerant or fluid is higher than the temperature of the battery. This is because the startability of the battery is improved if air having a temperature slightly higher than the battery temperature can be supplied.

In the first embodiment and the second embodiment, the fluid is high-temperature water that is heat-exchanged by the water-cooled condenser 101 that is a water-refrigerant heat exchanger in the refrigeration cycle, and the air-conditioning heat exchanger 102 and the battery heat exchanger 103. And are arranged in parallel. By arranging the air conditioning heat exchanger 102 and the battery heat exchanger 103 in parallel, the three-way valve 108 can be provided as in the second embodiment, and the air conditioning heat exchanger 102 and the battery heat exchanger 103 can be provided. The amount of water supplied to each can be adjusted.

On the other hand, the fluid is the same as that of the high-temperature water that is heat-exchanged by the water-cooled condenser 101 that is a water-refrigerant heat exchanger in the refrigeration cycle, and from the upstream side where the fluid flows as in the modification shown in FIG. Further, the water-cooled condenser 101, the air-conditioning heat exchanger 102, and the battery heat exchanger 103 can be arranged in series in this order. In this way, the branching of the flow path can be eliminated. Further, by arranging the air conditioner heat exchanger 102 on the upstream side and the battery heat exchanger 103 on the downstream side, high-temperature water is supplied to the air conditioner heat exchanger 102, and the battery heat exchanger 103. Can be supplied with water suitable for warming up the battery at a low temperature.

As shown in FIG. 7, an outdoor unit 121C can be provided in the refrigerant circuit 11C. Since the outdoor unit 121C can directly absorb heat, the low temperature side water circuit 12 can be omitted.

As shown in FIG. 8, the high-temperature side water circuit 10 can be omitted, and a refrigerant circuit 11D can be provided in which the air conditioner heat exchanger 102 and the battery heat exchanger 103 directly exchange heat with the refrigerant. In FIG. 8, the air conditioner heat exchanger 102 and the battery heat exchanger 103 are arranged in series. However, as shown in FIG. 9, the air conditioner heat exchanger 102 and the battery heat exchanger 103 are arranged in parallel. An arranged refrigerant circuit 11E can also be provided.

The embodiment has been described above with reference to specific examples. However, the present disclosure is not limited to these specific examples. Those in which those skilled in the art appropriately modify the design of these specific examples are also included in the scope of the present disclosure as long as they have the features of the present disclosure. Each element included in each of the specific examples described above and their arrangement, conditions, shape, and the like are not limited to those illustrated, and can be changed as appropriate. Each element included in each of the specific examples described above can be appropriately combined as long as no technical contradiction occurs.

Claims

A battery warm-up system,
A compressor (112) for compressing and discharging the refrigerant;
A heat exchanger for air conditioning (102) that heats the air-conditioned air flow sent to the air-conditioning target space, using the refrigerant discharged from the compressor or the fluid heat-exchanged with the refrigerant as a heat source;
A battery heat exchanger (103) for heating a battery air flow sent to the battery using a refrigerant discharged from the compressor or a fluid heat-exchanged with the refrigerant as a heat source;
An air-conditioning blower (106) for generating the air-conditioned air flow passing through the air-conditioning heat exchanger;
A battery blower (107) for generating the battery airflow passing through the battery heat exchanger;
A control device (13) for controlling the air-conditioning blower and the battery blower,
The control device controls at least one of the air-conditioning blower and the battery blower so that an air-side temperature efficiency in the air-conditioning heat exchanger is higher than an air-side temperature efficiency in the battery heat exchanger. A battery warm-up system that executes a battery warm-up mode.
In the battery warm-up mode, the control device is configured such that the wind speed of the battery air flow passing through the battery heat exchanger is faster than the wind speed of the air conditioning air flow passing through the air conditioning heat exchanger. The battery warm-up system according to claim 1, wherein an air flow rate of at least one of the air-conditioning blower and the battery blower is adjusted.
In the battery warm-up mode, the control device starts from the stage where the temperature of the refrigerant or the fluid flowing in the battery heat exchanger is lower than the temperature of the refrigerant or the fluid flowing in the air-conditioning heat exchanger. The battery warm-up system according to claim 1 or 2, wherein the battery blower is driven.
When the control device executes the battery warm-up mode and determines that the battery has reached a target temperature, the controller blows the battery blower so that the wind speed of the battery air flow passing through the battery heat exchanger decreases. The battery warm-up system according to any one of claims 1 to 3, wherein the battery warm-up system is controlled.
An adjustment unit for air conditioning that adjusts the amount of the refrigerant or the fluid flowing through the heat exchanger for air conditioning;
A battery adjustment unit for adjusting an amount of the refrigerant or the fluid flowing through the battery heat exchanger;
The control device is configured to control the air-conditioning blower, the battery blower, the air-conditioning adjustment unit, and the battery adjustment unit.
The control device includes the air-conditioning blower, the battery blower, and the air-conditioning adjustment so that an air-side temperature efficiency in the air-conditioning heat exchanger is higher than an air-side temperature efficiency in the battery heat exchanger. The battery warm-up system according to claim 1, wherein a battery warm-up mode is performed to control at least one of the battery control unit and the battery adjustment unit.
In the battery warm-up mode, the control device is configured so that the amount of the refrigerant or the fluid sent to the battery heat exchanger is smaller than the amount of the refrigerant or the fluid sent to the air conditioning heat exchanger. The battery warming-up system according to claim 5, wherein a sending amount of at least one of the air conditioning adjustment unit and the battery adjustment unit is adjusted.
The controller, in the battery warm-up mode, from the stage where the temperature of the refrigerant or the fluid flowing to the battery heat exchanger is lower than the temperature of the refrigerant or the fluid flowing to the air conditioning heat exchanger, The apparatus according to claim 5 or 6, wherein at least one of the air conditioning blower, the battery blower, the air conditioning adjustment unit, and the battery adjustment unit is controlled so that the battery heat exchanger starts to exchange heat. The battery warm-up system described.
When the control device executes the battery warm-up mode and determines that the battery has reached a target temperature, the controller blows the battery blower so that the wind speed of the battery air flow passing through the battery heat exchanger decreases. The control of the battery or the controller for controlling the battery so as to reduce the amount of the refrigerant or the fluid sent to the battery heat exchanger, or both of them is executed. The battery warm-up system according to any one of the above.
The battery warm-up system according to any one of claims 1 to 8, wherein the control device executes the battery warm-up mode when discharging from the battery is started.
The battery warm-up system according to any one of claims 1 to 9, wherein the control device executes the battery warm-up mode when a temperature of the refrigerant or the fluid is higher than a temperature of the battery.
The said fluid is the high temperature water heat-exchanged by the water refrigerant | coolant heat exchanger (101,111) in the refrigerating cycle, The said heat exchanger for an air conditioning and the said heat exchanger for batteries are arrange | positioned in parallel. The battery warm-up system according to any one of 1 to 10.
The fluid is high-temperature water heat-exchanged by a water-refrigerant heat exchanger (101, 111) in a refrigeration cycle,
The battery according to any one of claims 1 to 10, wherein the water refrigerant heat exchanger, the air conditioning heat exchanger, and the battery heat exchanger are arranged in series in this order from the upstream side in which the fluid flows. Warm-up system.