JP2009275518A - Vehicle warm-up system - Google Patents

Abstract

Even when the capacity of a heat storage material included in a heat storage device is large, heat storage and heat dissipation can be efficiently performed in a short time, and early warm-up of a warm-up target engine can be effectively performed.
A vehicle warm-up system 1 includes a heat storage device 10 having a latent heat storage material 20 capable of storing heat in a supercooled state, and the heat storage device 10 is a hydraulic fluid through which hydraulic fluid of an automatic transmission 40 flows. The heat storage material storage chamber 16 (16-1 to 16-5) which accommodated the distribution chamber 17 and the heat storage material 20 has the heat storage material storage chambers 16-1 to 16-5. Are arranged in order along the flow direction of the hydraulic oil. In this heat storage device 10, in each heat storage material 20 accommodated in the heat storage material accommodation chambers 16-1 to 16-5, heat storage (melting) by heat supply from hydraulic oil, or heat dissipation by a nucleation operation of the nucleation device 25. The time when (solidification) is performed is made different in the order of the arrangement of the heat storage material accommodation chambers 16-1 to 16-5.
[Selection] Figure 1

Description

  The present invention relates to a vehicle warm-up system including a heat storage device that can perform early warm-up of an internal combustion engine, a transmission, or the like, or immediate heating in a vehicle.

Conventionally, as shown in Patent Documents 1 and 2, for example, there is a vehicle warm-up system including a heat storage device that warms up an internal combustion engine (engine) or an automatic transmission by heat storage. The heat storage device (heat storage tank) described in Patent Document 1 uses cooling water of an internal combustion engine as a heat storage medium, and the heat storage medium is accommodated in a highly heat insulating container. Further, the heat storage device described in Patent Document 2 has a structure in which a flow path through which hydraulic fluid of an automatic transmission flows is covered with a heat storage material layer made of a high heat capacity material such as ceramic or magnesium oxide. If a warm-up system provided with such a heat storage device is used, it is possible to effectively warm up the internal combustion engine and the automatic transmission at the start of the vehicle or to quickly heat the interior of the vehicle.
JP-A-10-71837 JP 2002-39335 A

  By the way, in the heat storage apparatus as described above, as a heat storage material (heat storage element) that performs heat storage and heat release by heat exchange with a heat transfer medium that circulates from the engine to be warmed up, a latent heat storage material that can store heat in a supercooled state (heat storage element) Some have supercooled heat storage materials. Such a supercooled heat storage material stores heat by supplying heat from the heat transfer medium, changes phase (melts) from the solid phase to the liquid phase, and maintains the liquid phase state due to the subsequent temperature drop. It becomes a supercooled state. On the other hand, by releasing the supercooling state by the supercooling release means, the heat storage is released and the phase changes (solidifies) from the liquid phase to the solid phase. However, in such a supercooled heat storage material, when the heat supply is stopped in a state where the solid (crystal) state remains in the heat storage material during the heat storage, solidification proceeds with a subsequent temperature drop. There is a problem that heat storage is released without maintaining the supercooled state. Therefore, when performing heat storage on the heat storage material, it is necessary to completely melt the entire heat storage material so that there is no solid portion in the heat storage material.

  In addition, since the internal combustion engine, the drive train engine, and the vehicle interior heating device, which are the targets for warm-up of the heat storage device, all have a large heat capacity, a large amount of heat energy is required for their warm-up. Therefore, it is necessary to increase the capacity of the heat storage material that the heat storage device has. However, increasing the capacity of the heat storage material increases the time required for heat storage. Then, when the operation time of the internal combustion engine or the like is short, the probability that the heat storage to the heat storage material is not completed (the whole heat storage material is not completely melted) is increased.

  In addition, in a heat storage device including a large-capacity heat storage material, the heat transfer between the heat storage material and the heat transfer medium is efficiently performed because the contact area with the heat transfer medium is smaller than the volume of the heat storage material. There is a risk that it will not be broken. Therefore, if the device is devised so that this heat transfer is performed efficiently, the heat transfer medium can be warmed by heat dissipation of the heat storage material, or the heat storage material can be stored with higher efficiency by supplying heat from the heat transfer medium. Become.

  The present invention has been made in view of the above points, and the object thereof is to perform heat storage and heat dissipation efficiently in a short time even when the capacity of the heat storage material of the heat storage device is large. It is to provide a vehicle warm-up system that can effectively perform early warm-up and immediate heating in a vehicle.

  In order to solve the above problems, a warm-up system for a vehicle according to the present invention releases a heat storage element (20) made of a latent heat storage material capable of storing heat in a supercooled state, and the supercooled state of the heat storage element (20). A heat storage device (10) having a supercooling release means (25), and a heat transfer medium flow path for circulating a heat transfer medium between the warm-up target engine (30, 40) and the heat storage device (10). (31, 34, 36, 41), and the heat storage device (10) includes a heat transfer medium flow chamber (14) through which the heat transfer medium from the heat transfer medium flow path (31, 34, 36, 41) flows. , 15, 17, 18) and a plurality of heat storage element accommodation chambers (16-1 to 16-5) containing the heat storage elements (20), and a plurality of heat storage element accommodation chambers (16-1 to 16-). 5) shows the flow of the heat transfer medium flowing through the heat transfer medium distribution chamber (14, 15, 17, 18). In each heat storage element (20) arranged in order along the direction and accommodated in the plurality of heat storage element accommodation chambers (16-1 to 16-5), heat storage by heat supply from the heat transfer medium, or supercooling It is characterized in that the time when the heat release by the release of the state is performed is made different in the order of the arrangement of the heat storage element accommodation chambers (16-1 to 16-5). In this case, the heat storage by the heat supply from the heat transfer medium to each heat storage element (20) is performed in the order from the upstream side to the downstream side in the flow of the heat transfer medium, and each heat storage element (20) by the supercooling release means (25). The subcooling state is preferably released in the order from the downstream side to the upstream side. In addition, the code | symbol in parenthesis here has shown the code | symbol of the corresponding component of embodiment mentioned later as an example of this invention.

According to the vehicle warm-up system of the present invention, the heat storage element storage chamber that stores the heat storage element made of a latent heat storage material capable of storing heat in a supercooled state is divided into a plurality of heat storage element storage chambers. Are arranged in order along the flow direction of the heat transfer medium in the heat transfer medium circulation chamber, and the timing when the heat storage elements accommodated in the respective heat storage element accommodation chambers perform heat storage or heat dissipation is made different in the order of the arrangement of the heat storage element accommodation chambers. Configured. Thereby, even when the total capacity of the heat storage element is large, heat storage can be performed in order in each of the heat storage elements divided and accommodated, so that the heat storage of the heat storage element can be completed efficiently.
In addition, when performing heat dissipation of the heat storage material, heat dissipation is performed in the reverse order of the heat storage, so that even if there is an uncompleted heat storage element among the plurality of heat storage elements, the heat transfer medium temporarily It is not necessary to take the heat given to the heat storage element that has not yet completed heat storage. Therefore, the efficiency of heat transfer between the heat storage element and the heat transfer medium can be enhanced, and the warm-up target engine can be effectively warmed up.
As a result, even when the capacity of the heat storage element of the heat storage device is large, heat storage and heat dissipation can be performed efficiently in a short time, and early warming up of the engine to be warmed up and immediate heating in the vehicle can be effectively performed. become.

  Moreover, in said vehicle warming-up system, it is good to provide a supercooling cancellation | release means (25) in each of several thermal storage element accommodation chambers (16-1 to 16-5). Thereby, in the heat storage element accommodated in each heat storage element accommodation chamber, it becomes possible to change the time when the heat radiation by the cancellation | release of a supercooling state is performed in order of the arrangement | sequence of a heat storage element accommodation chamber. Also, when the vehicle is operated for a short time or intermittently, only the heat storage elements in some of the heat storage material storage chambers are radiated, or the heat storage elements in each heat storage element storage chamber are radiated in stages. It is possible to efficiently use the energy of the heat storage.

  Further, in the above vehicle warm-up system, when the heat transfer medium circulation chamber (14) is formed so that the flow of the heat transfer medium is linear, a plurality of heat storage element accommodation chambers (16-1 to 16-16). -5) is arranged along the linear flow. In addition, when the heat transfer medium flow chamber (14) is formed so that the flow of the heat transfer medium has a bent line shape, the plurality of heat storage element accommodation chambers (16-1 to 16-4) have the bent line. Arranged along the flow. By carrying out like this, a thermal storage element can be arranged in order along the flow of a heat transfer medium, and thermal storage of each thermal storage element comes to be performed in the order arranged.

  The vehicle warm-up system according to the present invention includes a heat storage element (20) made of a latent heat storage material capable of storing heat in a supercooled state, and supercooling release means for releasing the supercooled state of the heat storage element (20). (25), and a heat transfer medium flow path (31, 34) for circulating a heat transfer medium between the warm-up target engine (30, 40) and the heat storage apparatus (10). , 36, 41), and the heat storage device (10) includes a heat transfer medium flow chamber (14, 15, 17) through which the heat transfer medium from the heat transfer medium flow path (31, 34, 36, 41) flows. , 18) and a plurality of heat storage element accommodation chambers (16) containing the heat storage elements (20), and the supercooling release means (25) is provided in each of the plurality of heat storage element accommodation chambers (16). Control means (50) for controlling the supercooling release means (25), and the control means 50) of the heat storage element (20) that performs heat dissipation by releasing the supercooled state among the heat storage elements (20) accommodated in the plurality of heat storage element accommodation chambers (16) when the vehicle is operated. The number is determined according to a predetermined criterion, and each supercooling release means (25) is controlled based on the determination.

  As described above, if the heat storage element made of a latent heat storage material capable of storing heat in a supercooled state is not completely melted and a crystal portion remains, the supercooled state cannot be maintained and heat is released. For this reason, conventionally, when the vehicle stops before the heat storage element is completely melted in a relatively short time, there is a possibility that the heat storage element cannot be warmed up when the vehicle is restarted. Therefore, the warming-up system for a vehicle according to the present invention includes a plurality of heat storage elements that are divided and arranged so that the number of heat storage elements to be radiated when the vehicle is started can be adjusted. Thereby, for example, even when the previous vehicle operation is a short time and the heat storage of some heat storage elements is incomplete (not completely melted), the heat storage is completed when the vehicle is started. Only the elements can be dissipated. Therefore, it is possible to avoid a situation in which the warm-up by the heat storage element cannot be performed when the vehicle is restarted, and the warm-up target engine can be warmed up efficiently.

  In addition, even if the heat storage of each heat storage element has been completed, only one of the heat storage elements can be used when starting the vehicle, such as when each operation is relatively short in the past usage of the vehicle. It is possible to dissipate heat. As a result, for example, even when a vehicle is used in such a way that frequent operation in a short time is repeated, the engine to be warmed up can be warmed up at every start, so the energy of the heat storage can be efficiently The vehicle can be started smoothly each time.

  In addition, since the lubricating oil of the internal combustion engine and the hydraulic fluid of the transmission, which are heat transfer media of the present invention, have a high viscosity in a low temperature state when the vehicle is started, the friction generated in the lubricating system and the transmission is large, and the fuel consumption of the vehicle Is one of the factors that make it worse. However, since lubricants and hydraulic fluids have the property that their viscosity decreases exponentially with increasing temperature, friction is reduced even in the same range of temperature increase in the low temperature region compared to the high temperature region. The effect is great. Therefore, each time the vehicle is started, if one of the heat storage elements divided into a plurality of parts is radiated so that low-temperature lubricating oil or hydraulic oil can be heated in small increments, the lubricating system and transmission can be As a result, the friction generated in the vehicle can be effectively reduced, so that the fuel consumption of the vehicle can be greatly improved.

Further, in the above vehicle warm-up system, as a criterion for determining the number of heat storage elements to be radiated at the time of starting the vehicle, for example, one driving time within a predetermined period of past driving of the vehicle, every day of the week It is preferable to use the one operation time, the heat storage completion rate of the heat storage element within a predetermined period, the heat storage completion rate of the heat storage element for each day of the week, the outside air temperature detected by the outside air temperature detecting means, and the like. Note that the heat storage completion rate here indicates the ratio of the number of operations in which heat storage to the heat storage element is completed during a certain number of operations of the vehicle performed in the past.
In other words, in the past driving situation of the vehicle, if the proportion of short-time operation in which the heat storage to the heat storage element is not completed is equal to or higher than a predetermined reference, the heat storage elements may not be radiated at once at the start of each vehicle. Instead, only some of the heat storage elements should be dissipated. On the other hand, if the proportion of short-time operation is less than a predetermined reference, a plurality or all of the heat storage elements are collectively radiated at a time when starting the vehicle.
In actual vehicle usage, for example, the tendency of one driving time and driving distance is different for each day of the week such as weekdays and holidays. Therefore, if the number of heat storage elements to be dissipated is determined according to the past vehicle driving conditions for each day of the week, it becomes possible to perform appropriate warm-up according to the actual vehicle usage conditions, and more heat storage energy can be obtained. It can be used efficiently.

  Further, in the above vehicle warm-up system, the heat transfer medium to be circulated to the heat storage device (10) is discharged from the cooling water of the internal combustion engine (30), the lubricating oil of the internal combustion engine (30), and the internal combustion engine (30). Exhaust gas or hydraulic oil for the transmission (40). As a result, it is possible to effectively warm up the internal combustion engine and the drive system engine early.

  According to the vehicle warm-up system of the present invention, even when the capacity of the heat storage element is large, heat storage and heat dissipation can be performed efficiently in a short time, and the efficiency of heat transfer between the heat storage element and the heat transfer medium Therefore, early warm-up of the engine to be warmed up and immediate heating in the vehicle can be effectively performed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[First Embodiment]
FIG. 1 is a schematic diagram illustrating a configuration example of a vehicle warm-up system including a heat storage device according to the first embodiment of the present invention. The vehicle warm-up system 1 includes a heat storage device 10 having a heat storage material 20, a cooling water circulation path 31 that circulates cooling water (LLC) of the engine 30 to the heat storage device 10 and the heater core 45 of the vehicle interior heating device 44, and A hydraulic oil circulation path 41 that circulates hydraulic oil (ATF) of the automatic transmission (AT) 40 to the heat storage device 10 is provided. The cooling water circulation path 31 is led out from a water jacket (not shown) formed in the engine 30, communicates with the heat storage device 10, passes through the heater core 45 on the downstream side of the heat storage device 10, and is reintroduced into the water jacket of the engine 30. Has been. A cooling water pump 32 is interposed at a position immediately before being introduced into the engine 30. The cooling water pump 32 is driven in conjunction with rotation of a crankshaft (not shown) of the engine 30. The hydraulic oil circulation path 41 is provided with a hydraulic oil pump (electric pump) 42 for circulating the hydraulic oil and an oil temperature sensor 43 for detecting the temperature of the hydraulic oil. Although the detailed configuration of the heat storage device 10 will be described later, the cooling water circulation chamber 15 that communicates with the cooling water circulation path 31, the heat storage material accommodation chamber 16 that accommodates the heat storage material 20, and the hydraulic oil that communicates with the hydraulic oil circulation path 41. And a circulation chamber 17.

  Although not shown in detail, the heater core 45 is installed in an air introduction duct that faces the vehicle. A blower fan 46 for sending air to the heater core 45 is incorporated in the air introduction duct. The operation of the blower fan 46 is controlled by an electronic control unit (hereinafter referred to as ECU) 50. A blower duct that communicates with the interior of the vehicle is provided on the downstream side of the heater core 45.

  A control panel (not shown) in the vehicle is provided with a heating switch 51 for heating the vehicle and a defroster switch 55 for blowing warm air from the defroster outlet. On / off signals for the heating switch 51 and the defroster switch 55 are output to the ECU 50. Therefore, the blower fan 46 operates in response to the ON signal of the heating switch 51 and the defroster switch 55, and the air in the vehicle sucked through the air introduction duct is blown again into the vehicle through the heater core 45 from the blower duct. Yes. The warm-up system 1 includes an outside air temperature sensor 54 that detects the outside air temperature. A detection signal from the outside air temperature sensor 54 is output to the ECU 50. In addition, an operation signal of an ignition switch (hereinafter referred to as an IG switch) 56 is sent to the ECU 50.

  A switching valve (open / close valve) 33 that switches between opening and closing of the cooling water circulation path 31 is installed between the heat storage device 10 and the heater core 45 in the cooling water circulation path 31. The switching valve 33 is controlled to be opened and closed by a signal from the ECU 50. Hereinafter, when the switching valve 33 is off, the switching valve 33 is opened to indicate a state in which the cooling water of the heat storage device 10 and the heater core 45 flows, and when the switching valve 33 is on, the switching valve 33 is switched on. The state where the valve 33 is closed and the cooling water of the heat storage device 10 and the heater core 45 does not flow is shown.

  Further, a radiator circulation path 35 for circulating the cooling water of the engine 30 to the radiator 47 is provided. The radiator circulation path 35 exits from the water jacket of the engine 30 and merges with the upstream side of the cooling water pump 32 in the cooling water circulation path 31. The radiator circulation path 35 is provided with a main flow path 35 a that communicates with the radiator 47 and a bypass flow path 35 b that bypasses the radiator 47. An electronically controlled thermostat valve (three-way valve) 37 is interposed at the junction of the bypass passage 35 b on the downstream side of the radiator 47. The opening / closing direction of the electronically controlled thermostat valve 37 is controlled by a signal from the ECU 50. In addition, a water temperature sensor 38 for detecting the coolant temperature is incorporated in the radiator circulation path 35. A detection signal from the water temperature sensor 38 is output to the ECU 50.

  FIG. 2 is a diagram illustrating a configuration example of the electronically controlled thermostat valve 37. In the following, when the electronically controlled thermostat valve 37 is off, it refers to the state shown in FIG. 5A, that is, the state where the main channel 35a is opened and the bypass channel 35b is closed, and the electronically controlled thermostat valve 37 is When it is on, it means the state shown in FIG. 5B, that is, the state where the main flow path 35a is closed and the bypass flow path 35b is opened.

  When the cooling water temperature detected by the water temperature sensor 38 is lower than a predetermined temperature (for example, 100 ° C.), the ECU 50 controls the electronic control thermostat valve 37 so that the cooling water does not flow to the radiator 47. On the other hand, when the cooling water temperature becomes equal to or higher than a predetermined temperature (for example, 110 ° C.), the electronic control thermostat valve 37 is turned off to control the cooling water to be guided to the radiator 47.

  The ECU 50 is connected to a receiving device 52 that can communicate with an external device wirelessly. As a result, the ECU 50 can remotely receive an on / off signal of the warm-up switch 53a provided in the engine start key 53. Therefore, when the passenger operates the warm-up switch 53a of the engine start key 53 outside the vehicle, the ECU 50 receives the signal, and the ECU 50 can issue a warm-up command to the warm-up system 1.

  3A and 3B are diagrams illustrating a detailed configuration of the heat storage device 10, in which FIG. 3A is an exploded perspective view, and FIG. 3B is a cross-sectional view taken along line AA in FIG. The heat storage device 10 includes a housing 11 made of a long cylindrical body, an intermediate member 12 made of a tubular body having a slightly smaller diameter than the housing 11 installed inside the housing 11, and an intermediate member 12. It has a triple structure including a partition member 13 installed inside. The partition member 13 is divided into a plurality (five in FIG. 3) of members 13-1 to 13-5. The partition members 13-1 to 13-5 are arranged in order along the longitudinal direction inside the intermediate member 12. Each partition member 13-1 to 13-5 is formed in a shape having a storage space inside, and a plurality of fins 13 a are formed on a pair of opposing side surfaces. The fins 13a are plate-shaped extending along the longitudinal direction of the housing 11, and a large number are arranged in the lateral direction (short direction) at a predetermined interval. Between the fins 13a, as shown in FIG. 5B, a gap 13b is provided that communicates with the outside of the partition member 13.

  In the heat storage device 10 constituted by each of the above members, a space between the housing 11 and the intermediate member 12 is a cooling water circulation chamber 15 through which the cooling water introduced from the cooling water circulation path 31 circulates. Between each of the partition members 13-1 to 13-5 is a hydraulic oil circulation chamber 17 through which the hydraulic oil introduced from the hydraulic oil circulation passage 41 circulates. The inside is a heat storage material accommodation chamber 16-1 to 16-5 filled with the heat storage material 20 in a sealed state. The heat storage material accommodation chambers 16-1 to 16-5 (partition members 13-1 to 13-5) are along the flow direction of hydraulic oil (the X direction shown in FIG. 3A) in the hydraulic oil circulation chamber 17. They are arranged in a straight line at a predetermined interval.

  Lid members 14 a and 14 b are attached to openings at the upper and lower ends of the housing 11. The lower lid member 14a is provided with a hydraulic oil inlet 17a for introducing hydraulic oil into the hydraulic oil circulation chamber 17, and the upper lid member 14b is provided with a hydraulic oil outlet 17b for extracting hydraulic oil. ing. Further, a cooling water inlet 15 a for introducing cooling water into the cooling water circulation chamber 15 and a cooling water outlet 15 b for extracting cooling water are provided on the side surfaces near the upper end and the lower end of the housing 11, respectively.

  In the heat storage device 10, the heat storage material accommodation chamber 16 and the hydraulic oil circulation chamber 17 are disposed adjacent to each other, and the hydraulic oil circulation chamber 17 and the cooling water circulation chamber 15 are disposed adjacent to each other. Therefore, heat can be directly exchanged between the heat storage material 20 in the heat storage material accommodation chamber 16 and the hydraulic oil in the hydraulic oil circulation chamber 17, and the hydraulic oil in the hydraulic oil circulation chamber 17 and the cooling of the cooling water circulation chamber 15 can be cooled. Direct heat exchange with water. In addition, heat exchange can be performed indirectly between the hydraulic oil in the cooling water circulation chamber 15 and the heat storage material 20 in the heat storage material accommodation chamber 16 via the hydraulic oil in the hydraulic oil circulation chamber 17.

  The casing 11 is made of a material having durability such as rust prevention against cooling water and good heat insulation, for example, a metal material such as copper, aluminum, and stainless steel. Although not shown in the figure, a vacuum heat insulating layer may be formed inside the housing 11 in order to improve heat insulation. In addition, the intermediate member 12 and the partition member 13 are preferably made of a metal material having durability against cooling water, hydraulic oil, and the heat storage material 20 and having relatively high thermal conductivity, such as stainless steel.

  The heat storage material 20 is a latent heat storage material capable of storing heat in a supercooled state, and has a property that it remains in a liquid state and does not solidify even when it becomes below the freezing point. Examples of such a heat storage material 20 include a heat storage material made of sodium acetate hydrate. Sodium acetate hydrate generates heat when returning to the equilibrium state and solidifies by releasing the supercooled state by the releasing means described later, and can heat other medium having a low temperature. Therefore, the heat storage material 20 stores the heat by heat supply from a heat transfer medium such as hydraulic oil or cooling water, and changes (melts) from the solid phase to the liquid phase, and the liquid state is reduced by the subsequent temperature drop. It becomes a supercooled state with keeping. On the other hand, by releasing the supercooled state by the nucleation device 25, the heat storage is released and the phase changes (solidifies) from the liquid phase to the solid phase.

  In the heat storage material 20 of the heat storage material accommodation chamber 16, release means (hereinafter referred to as a nucleation device) 25 for releasing the supercooled state of the heat storage material 20 is installed. One nucleation device 25 is installed in each of the heat storage material accommodation chambers 16-1 to 16-5. FIG. 4 is a schematic side view showing the nucleation device 25. The nucleation device 25 includes a circular flat metal spring member 26 installed in the heat storage material 20 and a solenoid 27 that strikes the metal spring member 26. The solenoid 27 operates according to a command from the ECU 50. In the state shown in FIG. 5A, when the central portion 26a is pressed by the solenoid 27 in the state shown in FIG. 5A, the central portion 26a is reversed as shown in FIG. ing. Thereby, a nucleus is produced | generated (nucleation) in the thermal storage material 20, the supercooled state of the thermal storage material 20 is cancelled | released, and solidification starts. The release means may be any means as long as it can generate nuclei in the heat storage material 20, and in addition to the above, for example, a means for applying metal friction or voltage application in the heat storage material 20. There may be.

Here, sodium acetate hydrate was given as a representative example of a latent heat storage material capable of storing heat in a supercooled state, but in addition, hydrate salt compounds (chemical formula Mx · nH ₂ O (n: integer)) And examples thereof include Na ₂ SO ₄ .10H ₂ O and CaCl ₂ .6H ₂ O.

  In the heat storage device 20 shown in FIG. 1, the heat storage material accommodation chamber 16 is provided upstream and downstream in the hydraulic oil circulation chamber 17 along the hydraulic oil flow direction (the X direction shown in FIG. 1). is set up. And the 1st thermal storage material 20-1 is accommodated in the thermal storage material accommodation chamber 16 provided in the downstream, and the 1st nucleation apparatus 25-1 which nucleates the 1st thermal storage material 20-1 is installed. ing. Moreover, the 2nd thermal storage material 20-2 is accommodated in the thermal storage material accommodation chamber 16 provided in the upstream, and the 2nd nuclear generation apparatus 25-2 which nucleates the 2nd thermal storage material 20-2 is installed. ing.

  FIG. 5 is a graph showing a time chart of the operation mode in the warm-up system 1 configured as described above. As shown in the figure, the operation mode of the warm-up system 1 is switched to four stages from mode 0 to mode 3. Mode 0 is a mode during which the engine 30 is stopped. Mode 1 is a mode from when the IG switch 56 is turned on and the engine 30 is started until the coolant temperature reaches a predetermined temperature. During this period, the hydraulic oil of the automatic transmission 40 is heated by the heat storage material 20. . Further, the engine 30 self-warms. Mode 2 is a mode until it is determined that the warm-up of the automatic transmission 40 is completed because the oil temperature of the hydraulic oil has reached the predetermined temperature after the coolant temperature has reached the predetermined temperature. During this time, the hydraulic oil of the automatic transmission 40 is heated by the cooling water of the engine 30. Further, the coolant of the engine 30 is controlled (DUTY control) so as to maintain a predetermined temperature range by opening / closing control of the electronically controlled thermostat valve 37. Mode 3 is a mode after it is determined that the automatic transmission 40 has been warmed up. During this time, the hydraulic oil of the automatic transmission 40 is cooled by the cooling water of the engine 30. Further, the cooling water of the engine 30 is controlled so as to maintain a predetermined temperature range by opening / closing control of the electronically controlled thermostat valve 37 as in the mode 2.

  FIG. 6 is a main flow showing a control procedure of the warm-up system 1. In this control procedure, first, a mode switching subroutine, which will be described later, is executed (step ST1). Based on the result, it is determined whether or not the mode is 0 (step ST2). If it is mode 0 (Y), the mode 0 subroutine is executed (step ST3). If it is not mode 0 (N), it is determined whether or not it is mode 1 (step ST4). As a result, if it is mode 1 (Y), the mode 1 subroutine is executed (step ST5). If it is not mode 1 (N), it is determined whether it is mode 2 (step ST6). As a result, if it is mode 2 (Y), the mode 2 subroutine is executed (step ST7), and if it is not mode 2 (N), the mode 3 subroutine is executed (step ST8).

  FIG. 7 is a flowchart for explaining the mode switching procedure. In the mode switching, first, it is determined whether or not the IG switch 56 is on (step ST10). As a result, if the IG switch 56 is not on (N), mode 0 is set (step ST11). If IG switch 56 is on (Y), it is determined whether or not mode 2 or higher (step ST12). If it is not mode 2 or higher (N), it is determined whether or not cooling water temperature TW is lower than # TW1L. (Step ST13) If cooling water temperature TW is lower than # TW1L (Y), mode 1 is set (step ST14). A specific example of # TW1L is 100 ° C. Further, if the mode is 2 or higher in the previous step ST12 (Y), it is subsequently determined whether or not the mode is 2 (step ST15). If the mode is the mode 2 (Y) or the previous step ST13, the cooling water temperature is determined. When TW is equal to or higher than # TW1L (N), it is determined whether or not the hydraulic oil temperature TATF is lower than # TATF1L (step ST16). A specific example of # TATF1L is 100 ° C. As a result, if hydraulic oil temperature TATF is lower than # TATF1L (Y), mode 2 is set (step ST17), and if hydraulic oil temperature TATF is greater than or equal to # TATF1L (N), mode 3 is set (step ST18). ). If the mode is not mode 2 (N) in the previous step ST15, mode 3 is set (step ST18).

  FIG. 8 is a flowchart for explaining the procedure of the mode 0. In mode 0, first, it is determined whether or not a warm-up signal is input (step ST0-1). As a result, when no warm-up signal is input (N), the nucleation device 25 is turned off (step ST0-2). On the other hand, when the warm-up signal is input (Y), it is determined whether or not the coolant temperature TW is lower than # TW3 (step ST0-3). A specific example of # TW3 is 60 ° C. As a result, if the cooling water temperature TW is equal to or higher than # TW3 (N), the nucleation device 25 is turned off (step ST0-2). That is, when the coolant temperature is sufficiently high at the time of starting, it is determined that the engine 30 and the automatic transmission 40 need not be warmed up by the heat storage device 10, and the heat storage material 20 is not nucleated without self-heating. Do not warm up. On the other hand, if cooling water temperature TW is lower than # TW3 (Y), it is determined whether or not nucleation device 25 is on (step ST0-4). As a result, if the nucleation device 25 is off (N), the nucleation device 25 is turned on according to the procedure of the nucleation device control described later (step ST0-5).

  On the other hand, if the nucleation device 25 is turned on in the previous step ST0-4 (Y), it is determined whether or not it is within a predetermined time after the nucleation device 25 is turned on (step ST0-6). As a result, if it is not within the predetermined time (N), that is, if the predetermined time or more has passed since the nucleation device 25 is turned on, the nucleation device 25 is turned off (step ST0-2). In this mode 0, the switching valve 33 is turned off (step ST0-7), and the electronically controlled thermostat valve 37 is turned off (step ST0-8). Thereafter, the mode 0 procedure is terminated and the process returns to the main flow.

<Nucleation device control: Pattern 1>
Here, taking the heat storage device 20 having the configuration shown in FIG. 3 as an example, the procedure (pattern 1) of the nucleation device control in step ST0-5 shown in FIG. 8 will be described. In the pattern 1, the heat storage material accommodation chamber 16 on the upstream side (lower side shown in FIG. 3) from the heat storage material accommodation chamber 16-5 on the downstream side (upper side shown in FIG. 3) along the flow direction X of the hydraulic oil circulation chamber 17. The nucleation device 25 is controlled to be turned on at different times in the order of −1. By carrying out like this, the time when each thermal storage material 20 accommodated in the thermal storage material accommodation chambers 16-5 to 16-1 radiates heat | fever may be varied in order from the downstream side to the upstream side along the distribution direction X of hydraulic fluid. it can. As a result, even if there is an incomplete heat storage material among the plurality of heat storage materials 20, the heat storage material 20 incompletely stored with the heat once given to the hydraulic oil from the heat storage material 20 nucleated by the nucleation device 25. You will not be deprived of it. Therefore, the efficiency of heat transfer between the heat storage material 20 and the hydraulic oil or cooling water can be increased, and the automatic transmission 40 and the engine 30 can be warmed up and the vehicle interior can be effectively heated.

<Nucleating device control: Pattern 2>
Next, the procedure (pattern 2) of the nucleation device control in step ST0-5 of FIG. 8 will be described using the heat storage device 20 having the configuration shown in FIG. 1 as an example. FIG. 9 is a flowchart showing a subroutine of nucleation device control (step ST0-5) in this case. In pattern 2, the number of heat storage materials 20 to be radiated is determined according to a predetermined criterion, and the nucleation device 25 is controlled based on the determination. That is, first, it is determined whether or not the first heat storage material 25-1 on the downstream side in the hydraulic oil flow direction X is in a heat storage completion state (step ST10-1). As a result, if the heat storage of the first heat storage material 20-1 is not completed (N), the first nucleation device 25-1 is turned off (step ST10-2). In this case, the second nuclear generator 25-2 is continuously turned on (step ST10-3), and the supercooled state of the upstream second heat storage material 20-2 is released. That is, only the second heat storage material 20-2 is radiated. On the other hand, if the heat storage of the first heat storage material 25-1 is completed in the previous step ST10-1 (Y), the first nuclear generator 25-1 is turned on (step ST10-4), and the first heat storage Release the supercooled state of the material 20-1. Thereby, heat dissipation of the 1st heat storage material 20-1 is performed. In this case, it is subsequently determined whether or not the outside air temperature measured by the outside air temperature sensor 54 is equal to or higher than a predetermined value (step ST10-5). As a result, if the outside air temperature is lower than the predetermined value (N), the supercooled state of the second heat storage material 20-2 is canceled. Thereby, heat dissipation of both the 1st heat storage material 20-1 and the 2nd heat storage material 20-2 is performed. On the other hand, if the outside air temperature is equal to or higher than the predetermined value (Y), it is subsequently determined whether or not the short-time driving is equal to or higher than a predetermined reference described later in the past driving state (step ST10-6). . As a result, if the short-time operation is less than the reference (N), the supercooled state of the second heat storage material 20-2 is canceled. Thereby, heat dissipation of both the 1st heat storage material 20-1 and the 2nd heat storage material 20-2 is performed. On the other hand, if the short-time operation is equal to or higher than the reference (Y), the second nucleating device 25-2 is turned off (step ST10-7), and the second heat storage material 20-2 is not radiated.

  Here, the criteria for determining short-time operation in step ST10-6 in FIG. 9 will be described in detail. As an example of this criterion, one driving time within a predetermined period in past driving of the vehicle can be cited. For this one operation time, an average value of the operation time in a plurality of operations within a predetermined period may be used. If this one operation time is less than a predetermined reference value, it is determined that the short-time operation is less than the reference, and if it is greater than the reference value, it is determined that the short-time operation is greater than the reference. Furthermore, this one driving time can be divided and counted for each day of the week. In the case of using the driving time that is divided for each day of the week, it is determined whether or not one driving time corresponding to the (current) day of driving the vehicle is greater than or equal to a reference value.

  Further, as another example of the criterion for short-time operation, the heat storage completion rate of the heat storage material 20-2 within a predetermined period in the past driving of the vehicle can be given. Here, the heat storage completion rate indicates the ratio of the number of operations in which heat storage to the heat storage material 20-2 is completed (the heat storage material 20-2 is completely melted) in a certain number of operations performed in the past. That is, as an example, when the number of operations in which the heat storage of the heat storage material 20-2 has been completed in the past 10 vehicle operations is 6 times or less, it is determined that the short-time operation is equal to or more than the reference, and the number is more than 6 In this case, it is determined that the short-time operation is less than the standard. Furthermore, this heat storage completion rate can be divided and tabulated for each day of the week. In the case of using the heat storage completion rate that is tabulated separately for each day of the week, it is determined whether or not the heat storage completion rate corresponding to the (current) day of the week of driving the vehicle is greater than or equal to a predetermined reference. In step ST10-6, the heat storage completion rate of the second heat storage material 20-2 has been described here in order to determine whether the second heat storage material 20-2 can dissipate heat. However, for the first heat storage material 20-1. It is also possible to determine the heat storage completion rate.

  If such a criterion is used, in the past vehicle usage situation, when each operation is relatively short, the heat storage of both the heat storage materials 20-1 and 20-2 is completed. Even if it exists, only the 1st heat storage material 20-1 can be radiated at the time of starting of a vehicle, and it becomes possible to hold | maintain heat storage, without making the 2nd heat storage material 20-2 radiate. Thereby, for example, even in a vehicle that is operated in such a manner as to frequently repeat a short period of operation, it becomes possible to warm up the engine 30 or the transmission 40 such as the engine 30 or the transmission 40 in small increments at each start. The heat storage energy can be used efficiently, and the vehicle can be started smoothly every time.

  Moreover, if the ratio of the short-time driving | operation in which the heat storage to the heat storage material 20-2 (20-1) is not completed in the past driving | running condition of a vehicle is more than a reference | standard, both the heat storage materials 20 are started in every starting of a vehicle. It is possible to radiate only one heat storage material 20-2 (20-1) instead of radiating -1 and 20-2 at a time. Thereby, it can prevent performing unnecessary nucleation operation | movement with respect to the thermal storage material 20 in which thermal storage is not completed. On the other hand, if the ratio of short-time operation is less than the reference, both the heat storage materials 20-1 and 20-2 can be radiated together at the time of starting the vehicle. That is, when the proportion of short-time operation is small, the heat stored in the heat storage material 20 is released at a time so that the heat storage energy can be used more effectively.

  In actual vehicle usage conditions, for example, the tendency of one driving time and driving distance for each day of the week such as weekdays and holidays often differs. In consideration of this point, if the number of the heat storage materials 20 to be radiated is determined according to the driving condition of the vehicle for each day of the week as in the present embodiment, appropriate warm-up according to the actual use condition of the vehicle is performed. It becomes possible to use the energy of heat storage more efficiently. Note that the nucleation device control of pattern 2 is not limited to the heat storage device 20 including the two heat storage materials 20 as shown in FIG. 1, but the heat storage device including three or more heat storage materials 20 as shown in FIG. 3. It is also possible to implement with the device 20.

  FIG. 10 is a flowchart for explaining the procedure of mode 1. In mode 1, it is first determined whether or not the coolant temperature TW is lower than # TW3 (step ST1-1). As a result, if the cooling water temperature TW is # TW3 or more (N), the nucleation device 25 is turned off (step ST1-2). That is, when the cooling water temperature is sufficiently high at the time of start-up, it is determined that the engine 30 and the automatic transmission 40 are not required to be warmed up by the heat storage device 10, and the cooling water by the heat storage material 20 is not nucleated without nucleating the heat storage material 20. Do not heat the hydraulic oil. On the other hand, if cooling water temperature TW is lower than # TW3 (Y), it is determined whether or not nucleation device 25 is on (step ST1-3). As a result, if the nucleation device 25 is not on (N), the plurality of nucleation devices 25 are turned on according to the procedure of the nucleation device control (step ST1-4). The nucleation device control here is the same as the nucleation device control (pattern 1 and pattern 2) in step ST0-5 of the previous mode 0.

  On the other hand, if the nucleation device 25 is turned on in the previous step ST1-3 (Y), it is determined whether or not it is within a predetermined time after the nucleation device 25 is turned on (step ST1-5). As a result, if it is not within the predetermined time (N), that is, if the predetermined time or more has passed since the nucleation device 25 is turned on, the nucleation device 25 is turned off (step ST1-2). Subsequently, it is determined whether or not the outside air temperature is equal to or higher than a predetermined temperature and the defroster switch 55 is off (step ST1-6). As a result, when the outside air temperature is equal to or lower than the predetermined temperature or the defroster switch 55 is on (N), the switching valve 33 is turned off (step ST1-7), so that the cooling water discharged from the heat storage device 10 is supplied to the heater core 45. To distribute. That is, in this case, the vehicle interior heating by the heat storage device 10 is also performed while the automatic transmission 40 is warmed up by the heat storage device 10. On the other hand, when the outside air temperature is equal to or higher than the predetermined temperature and the defroster switch 55 is off (Y), the switching valve 33 is turned on (step ST1-8), and the cooling water discharged from the heat storage device 10 is supplied to the heater core. 45 is not distributed. That is, in this case, warming up of the automatic transmission 40 by the heat storage device 10 is preferentially performed, and interior heating is not performed. Further, in mode 1, the electronically controlled thermostat valve 37 is turned on (step ST1-9), and the cooling water is not circulated through the radiator 47, so that the cooling water is warmed up early. Thereafter, the mode 1 procedure is terminated and the process returns to the main flow.

  FIG. 11 is a flowchart for explaining the procedure of mode 2. In mode 2, the nucleation device 25 is turned off (step ST2-1). Further, by turning off the switching valve 33 (step ST2-2), the cooling water from the heat storage device 10 is circulated to the heater core 45. Then, it is determined whether or not the electronic control thermostat valve 37 is on (step ST2-3). If the result is ON (Y), it is determined whether or not the coolant temperature TW is lower than # TW1H (step ST2-4). A specific example of # TW1H is 105 ° C. As a result, when the cooling water temperature TW is equal to or higher than # TW1H (N), the electronic control thermostat valve 37 is turned off (step ST2-6), thereby circulating the cooling water to the radiator. On the other hand, when the cooling water temperature TW is lower than # TW1H (Y), the electronically controlled thermostat valve 37 is kept on (step ST2-7), and the cooling water is not circulated to the radiator 47. If the electronically controlled thermostat valve 37 is off (N) in the previous step ST2-3, it is determined whether or not the coolant temperature TW is higher than # TW1L (step ST2-5). As a result, if the coolant temperature TW is higher than # TW1L (Y), the electronically controlled thermostat valve 37 is kept off (step ST2-6), and if the coolant temperature TW is # TW1L or less (N), the electronically controlled thermostat. The valve 37 is turned on (step ST2-7). Then return to the start and repeat the above procedure. That is, in mode 2, when the cooling water temperature TW rises to # TW1H or higher, cooling is performed by the radiator 47, and when the cooling water temperature TW decreases to # TW1L or lower, cooling by the radiator 47 is stopped. Thus, as shown in FIG. 5, control is performed so that cooling water temperature TW is always within the range between # TW1L and # TW1H.

  FIG. 12 is a flowchart for explaining the procedure of mode 3. In mode 3, first, the nucleation device 25 is off (step ST3-1). Moreover, the switching valve 33 is off (step ST3-2), and the cooling water discharged from the heat storage device 10 is flowing through the heater core 45. Then, it is determined whether or not the hydraulic oil temperature TATF is lower than # TATF1H (step ST3-3). A specific example of # TATF1H is 110 ° C. As a result, if the hydraulic oil temperature TATF is lower than # TATF1H (Y), it is determined whether or not the electronically controlled thermostat valve 37 is on (step ST3-4). If it is on (Y), it is determined whether or not the coolant temperature TW is lower than # TW1H (step ST3-5). If cooling water temperature TW is equal to or higher than # TW1H (N), electronic control thermostat valve 37 is turned off (step ST3-7). If cooling water temperature TW is lower than # TW1L (Y), electronic control thermostat valve 37 is turned on. (Step ST3-8). On the other hand, if the electronically controlled thermostat valve 37 is not on in the previous step ST3-4 (N), it is determined whether or not the coolant temperature TW is higher than # TW1L (step ST3-6). As a result, if the cooling water temperature TW is higher than # TW1L (Y), the electronic control thermostat valve 37 is turned off (step ST3-7). If the cooling water temperature TW is # TW1L or less (N), the electronic control thermostat valve 37 is turned off. Is turned on (step ST3-8). That is, when the hydraulic oil temperature of the automatic transmission 40 is in the target range (TATF <# TATF1H: 110 ° C.), it is not necessary to lower the cooling water temperature any more, so the cooling water temperature is a so-called fuel consumption target value that gives priority to fuel consumption. (# TW1L: 100 ° C. <TW <# TW1H: 105 ° C.)

  On the other hand, if the hydraulic oil temperature TATF is greater than or equal to # TATF1H in Step ST3-3 (N), it is determined whether or not the electronically controlled thermostat valve 37 is already on (Step ST3-9). If so (Y), it is determined whether or not the coolant temperature TW is lower than # TW2H (step ST3-10). A specific example of # TW2H is 85 ° C. When cooling water temperature TW is equal to or higher than # TW2H (N), electronic control thermostat valve 37 is turned off (step ST3-12). When cooling water temperature TW is lower than # TW2H (Y), electronic control thermostat valve 37 is turned off. Turns on (step ST3-8). On the other hand, if the electronically controlled thermostat valve 37 is not on in the previous step ST3-9 (N), it is determined whether or not the coolant temperature TW is higher than # TW2L (step ST3-11). A specific example of # TW2L is 80 ° C. As a result, if the cooling water temperature TW is higher than # TW2L (Y), the electronic control thermostat valve 37 is turned off (step ST3-12). If the cooling water temperature TW is # TW2L or less (N), the electronic control thermostat valve 37 is turned off. Is turned on (step ST3-8). In other words, when the hydraulic oil temperature of the automatic transmission 40 is too high compared to the target range (TATF <# TATF1H: 110 ° C.), the cooling water temperature of the engine 30 needs to be kept low. Control is performed so that the temperature is given priority to cooling (# TW2L: 80 ° C. <TW <# TW2H: 85 ° C.).

  Here, when the heat storage material 20 in the heat storage material storage chamber 16 is in a solid phase (heat release completed) state due to the release of the supercooled state (nucleation) in mode 1, the operation is performed in mode 2 or mode 3. Heat is stored in the heat storage material 20 by supplying heat from the hydraulic oil flowing through the oil distribution chamber 17. In this case, as shown in FIG. 3A, the heat storage material accommodation chambers 16-1 to 16-5 are sequentially arranged along the hydraulic oil circulation direction X in the hydraulic oil circulation chamber 17. Each heat storage material 20 accommodated in the storage chambers 16-1 to 16-5 is preferentially supplied with the heat of the hydraulic oil from the heat storage material 20 stored in the upstream heat storage material storage chamber 16-1. (Melting) proceeds. And if the heat storage of the heat storage material 20 accommodated in the upstream heat storage material accommodation chamber 16-1 is completed (the whole is melted), the heat supply to the heat storage material 20 is stopped. The heat of the hydraulic oil is sequentially supplied to the heat storage material 20 stored in the heat storage material storage chambers 16-2 to 16-5. Therefore, each heat storage material 20 accommodated in the heat storage material accommodation chambers 16-5 to 16-1 stores heat in the order from the upstream side to the downstream side along the circulation direction X of the hydraulic oil flowing through the hydraulic oil circulation chamber 17. To be done.

  As described above, according to the vehicle warm-up system 1 of the present embodiment, the heat storage material storage chamber 16 (16-1 to 16-5) that stores the latent heat storage material 20 capable of storing heat in a supercooled state. A plurality of heat storage material accommodation chambers 16-1 to 16-5 are arranged in order along the hydraulic oil flow direction X in the hydraulic oil circulation chamber 17, and each heat storage material accommodation chamber 16-1 is provided. The time at which the heat storage material 20 accommodated in ˜16-5 performs heat storage or heat dissipation is made different in the order of the arrangement of the heat storage material accommodation chambers 16-1 to 16-5 (pattern 1 of nucleation device control). Thereby, in the case of a heat storage, since heat storage can be performed in order for every heat storage material 20 accommodated in the heat storage material accommodation chambers 16-1 to 16-5, the heat storage of the heat storage material 20 can be completed efficiently. It becomes. Moreover, in the case of heat dissipation, since it nucleates for every heat storage material 20 accommodated in the heat storage material accommodation chambers 16-1 to 16-5 in order, the efficiency of the heat transfer between the heat storage material 20 and hydraulic fluid is improved. Can do. Therefore, even when the capacity of the heat storage material 20 included in the heat storage device 10 is large, heat storage and heat dissipation can be efficiently performed in a short time, and the automatic transmission 40 and the engine 30 can be warmed up quickly, or immediate heating in the vehicle can be performed. You can do it effectively.

  Moreover, in the warming-up system 1 for vehicles of this embodiment, the thermal storage material 20 (20-1, 20-2) divided | segmented and arrange | positioned is provided, and the number of the thermal storage materials 20 radiated at the time of starting of a vehicle can be adjusted. (Nucleation device control pattern 2). Thereby, for example, the previous operation of the vehicle is a short time, only the heat storage of the second heat storage material 20-2 on the upstream side is completed, and the heat storage of the first heat storage material 20-1 on the downstream side is not completed. Even when it is (not completely melted), it is possible to dissipate only the second heat storage material 20-2 for which heat storage has been completed when the vehicle is started. Therefore, it is possible to avoid a situation in which the heat storage of the heat storage material is not completed at the start of the vehicle and the warm-up cannot be performed as in the prior art.

  Further, since the lubricating oil of the engine 30 and the hydraulic oil of the automatic transmission 40 have high viscosity in a low temperature state at the time of starting the vehicle, the friction generated in the lubricating system and the automatic transmission 40 is large, and the fuel consumption of the vehicle is deteriorated. It is a cause. However, since lubricating oil and hydraulic oil have the property that the viscosity decreases exponentially with increasing temperature, the friction is reduced in the low temperature region even when the temperature is increased by the same width as the high temperature region. Great effect. Therefore, as in the vehicle warm-up system 1 of the present embodiment, one of the heat storage materials 20-1 and 20-2 is radiated at the time of starting the vehicle, thereby heating the low-temperature lubricating oil or hydraulic oil in small increments. By doing so, it becomes possible to effectively reduce the friction generated in the lubrication system and the automatic transmission 40 at the start of the vehicle every time, and the fuel consumption of the vehicle can be greatly improved.

[Second Embodiment]
Next, the warming-up system for vehicles concerning 2nd Embodiment of this invention is demonstrated. In the description of the second embodiment and the corresponding drawings, the same or corresponding components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted below. Further, matters other than those described below and matters other than those illustrated are the same as those in the first embodiment.

  FIG. 13 is a schematic diagram illustrating a configuration example of the vehicle warm-up system 1-2 according to the second embodiment. The heat storage device 10-2 included in the warm-up system 1-2 according to the present embodiment replaces the hydraulic oil distribution chamber 17 included in the heat storage device 10 according to the first embodiment with the lubricating oil that distributes the lubricating oil of the engine 30. A distribution chamber 14 is provided. Accordingly, instead of the hydraulic oil circulation path 41 that circulated the hydraulic oil between the automatic transmission 40 and the heat storage device 10, the lubricating oil that circulates the lubricating oil between the engine 30 and the heat storage device 10-2. A circulation path 36 is provided. A lubricating oil pump (electric pump) 39 for circulating the lubricating oil is installed in the lubricating oil circulation path 36.

  In the heat storage device 10-2, the plurality of heat storage material accommodation chambers 16 (partition members 13) are linear at predetermined intervals along the lubricating oil flow direction (X direction shown in FIG. 13) in the lubricating oil flow chamber 14. Is arranged. Therefore, the heat storage material 20 accommodated in each heat storage material accommodation chamber 16 is subjected to heat storage in order from the upstream side to the downstream side along the flow direction X of the lubricating oil flowing through the lubricating oil circulation chamber 14. Further, when heat is released from the heat storage material 20, the nucleation device 25 is operated in order from the downstream side to the upstream side, contrary to the time of heat storage.

[Third Embodiment]
FIG. 14 is a schematic diagram illustrating a configuration example of the vehicle warm-up system 1-3 according to the third embodiment. The warming-up system 1-3 of this embodiment is provided with the heat storage apparatus 10-3 of another structure instead of the heat storage apparatus 10 with which the warming-up system 1 of 1st Embodiment is provided. Specifically, in the heat storage device 10 of the first embodiment, the flow of hydraulic oil in the hydraulic oil circulation chamber 17 is linear, whereas in the heat storage device 10-3 of the present embodiment, FIG. As shown, the flow of the hydraulic oil in the hydraulic oil circulation chamber 17 has a bent line shape having bent portions.

  That is, a partition wall 19 is provided between the hydraulic oil inlet 17a and the hydraulic oil outlet 17b in the hydraulic oil circulation chamber 17 so that the surfaces intersect with the flow direction of the hydraulic oil. The partition wall 19 is installed so as to be passed between the upper and lower walls in the hydraulic oil circulation chamber 17 and has a slight gap with respect to the wall surface (lower surface) far from the hydraulic oil inlet 17a and the hydraulic oil outlet 17b. Installed. As a result, the hydraulic oil flowing in from the hydraulic oil inlet 17a circulates in a straight line from the upper side to the lower side of the partition wall 19 and then bends in the vicinity of the lower end of the partition wall 19 so that the vertical direction is reversed. The left side of 19 is linearly circulated from the bottom to the top and is led out from the hydraulic oil outlet 17b. As described above, the flow path of the hydraulic oil in the hydraulic oil circulation chamber 17 is bent at a substantially right angle at a plurality of locations on the way, and is a so-called bent flow.

  A plurality (four in FIG. 14) of heat storage material accommodation chambers 16-1 to 16-4 installed in the hydraulic oil circulation chamber 17 are bent in the hydraulic oil circulation chamber 17 (shown in FIG. 14). (Y direction). That is, the heat storage material accommodation chambers 16-1 and 16-2 are arranged on the right side of the partition wall 19 along the linear flow from the upper side to the lower side, and the heat storage material accommodation chambers 16-3 and 16. -4 is arranged on the left side of the partition wall 19 side by side along the linear flow from below to above.

[Fourth Embodiment]
FIG. 15: is a figure which shows the detailed structure of the thermal storage apparatus 10-4 with which the warming-up system for vehicles of 4th Embodiment is equipped, (a) is a disassembled perspective view, (b) is AA of (a). It is arrow sectional drawing. The heat storage device 10-4 of the present embodiment has a double structure in which the intermediate member 12 included in the heat storage device 10 of the first embodiment is omitted and the partition member 13 is installed inside the housing 11. The partition member 13 is divided into a plurality (five in FIG. 15) of partition members 13-1 to 13-5, as in the first embodiment. The partition members 13-1 to 13-5 are linearly arranged at predetermined intervals along the longitudinal direction inside the housing 11.

  In the heat storage device 10-4, a cooling water circulation chamber 15 into which the cooling water of the engine 30 is introduced is provided between the housing 11 and the partition member 13, and the heat storage material 20 is sealed inside the partition member 13. It becomes the heat storage material accommodation chamber 16 (16-1 to 16-5) filled with. The heat storage material accommodation chambers 16-1 to 16-5 (partition members 13-1 to 13-5) are arranged in the coolant flow direction (Z direction shown in FIG. 15A) in the coolant flow chamber 15. Are arranged at predetermined intervals. Also in the heat storage apparatus 10-4 of this embodiment, the heat storage material 20 accommodated in each of the heat storage material accommodation chambers 16-1 to 16-5 is transferred to the heat storage material accommodation chamber 16-1 on the upstream side in the circulation direction Z of the cooling water. The heat of the cooling water is preferentially supplied from the stored heat storage material 20 and heat storage (melting) proceeds. Further, when the heat storage material 20 is radiated, the nucleation device 25 is operated in order from the downstream side to the upstream side, contrary to the time of heat storage.

[Fifth Embodiment]
FIG. 16 is a schematic diagram illustrating a configuration of a heat storage device 10-5 included in the vehicle warm-up system according to the fifth embodiment. The heat storage device 10-5 of the present embodiment includes an exhaust gas circulation chamber 18 for circulating the exhaust gas discharged from the engine 30 instead of the cooling water circulation chamber 15 included in the heat storage device 10 of the first embodiment. . As shown in FIG. 16, the inlet of the exhaust gas circulation chamber 18 communicates with an exhaust gas passage 34 through which exhaust gas emitted from the engine 30 flows. Further, the outlet of the exhaust gas circulation chamber 18 communicates with an exhaust pipe (not shown) for discharging the exhaust gas to the outside of the vehicle. The exhaust gas flow path 34 is provided with an exhaust gas temperature sensor 34a that detects the temperature of the exhaust gas. Data on the exhaust gas temperature detected by the exhaust gas temperature sensor 34a is input to the ECU 50.

  The exhaust gas circulation chamber 18 is disposed so as to penetrate the center of the heat storage device 10-4, and the heat storage material 20 is sealed around the main flow path 18a through which the exhaust gas flows in the exhaust gas circulation chamber 18. A plurality of heat storage material accommodation chambers 16 to be filled are arranged. The respective heat storage material accommodation chambers 16 are arranged adjacent to each other along the flow direction of the exhaust gas flowing in the exhaust gas circulation chamber 18 (the U direction shown in FIG. 16). One nucleation device 25 is installed. Each nucleating device 25 is operated by a command from the ECU 50. Further, a bypass flow path 18b extending in parallel to the main flow path 18a is provided inside the main flow path 18a, and between the main flow path 18a and the bypass flow path 18b in the vicinity of the inlet of the heat storage material accommodation chamber 16. The flow path switching valve 18c for switching the exhaust gas flow path is installed. The flow path switching valve 18c is operated by a command from the ECU 50. In the heat storage device 10-4 of the present embodiment, the hydraulic oil circulation chamber 17 is disposed outside the heat storage material accommodation chamber 16.

  Also in the heat storage apparatus 10-5 of this embodiment, the heat storage material 20 accommodated in each heat storage material accommodation chamber 16 has priority from the heat storage material 20 accommodated in the upstream heat storage material accommodation chamber 16 in the exhaust gas circulation direction U. The heat of the exhaust gas is supplied to and heat storage (melting) proceeds. Further, when the heat storage material 20 is radiated, the nucleation device 25 is operated in order from the downstream side to the upstream side, contrary to the time of heat storage.

  In addition, the heat storage material 20 made of sodium acetate hydrate or the like may change in quality when the temperature becomes higher than a predetermined temperature, and the heat storage action and the heat radiation action may be deteriorated. However, the exhaust gas discharged from the engine 30 rises above this predetermined temperature. Therefore, if the heat of the exhaust gas that has become high temperature is transmitted to the heat storage material 20, the heat storage material 20 may be altered. Therefore, in the heat storage device 10-5 of the present embodiment, when the exhaust gas flowing through the exhaust gas circulation chamber 18 becomes a high temperature that is equal to or higher than a predetermined temperature, the flow path switching valve 18c is operated to distribute the exhaust gas. The path is switched from the main flow path 18a to the bypass flow path 18b. Thereby, it can prevent that the heat | fever of high temperature exhaust gas is transmitted to the thermal storage material 20, and it can avoid that the thermal storage material 20 changes in quality.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. For example, the number and specific shape of the heat storage material accommodation chambers 16 included in the heat storage device 10 (10-2 to 10-4) of each of the above embodiments are examples, and the number of heat storage material accommodation chambers 16 is other than the above. It is also possible to have a shape. The heat storage material accommodation chamber 16 is arranged along the flow direction of the heat transfer medium such as the working oil in the working oil circulation chamber 17, the cooling water in the cooling water circulation chamber 15, and the exhaust gas in the exhaust gas circulation chamber 18. If so, the specific arrangement form is not limited to the above-mentioned linear form or bent line form, and may be arranged in other forms.

It is the schematic which shows the structural example of the warming-up system for vehicles concerning 1st Embodiment of this invention. It is a figure which shows the structural example of an electronically controlled thermostat valve. It is a figure which shows the structural example of a thermal storage apparatus, (a) is a disassembled perspective view, (b) is AA arrow sectional drawing of (a). It is a figure which shows the structural example of a nucleation apparatus. It is a graph which shows the time chart of the operation mode of a warming-up system. It is a main flow which shows the control procedure of a warming-up system. It is a flowchart for demonstrating the operation mode switching procedure. It is a flowchart for demonstrating the procedure of mode 0. FIG. It is a flowchart which shows the subroutine of a nucleation apparatus control. 3 is a flowchart for explaining a procedure in mode 1; 6 is a flowchart for explaining a procedure of mode 2. 10 is a flowchart for explaining a procedure of mode 3. It is the schematic which shows the structural example of the warming-up system for vehicles concerning 2nd Embodiment of this invention. It is the schematic which shows the structural example of the warming-up system for vehicles concerning 3rd Embodiment of this invention. It is a figure which shows the structural example of the thermal storage apparatus with which the warming-up system for vehicles concerning 4th Embodiment of this invention is equipped, (a) is a disassembled perspective view, (b) is the AA arrow cross section of (a). FIG. It is the schematic which shows the structural example of the thermal storage apparatus with which the warming-up system for vehicles concerning 5th Embodiment of this invention is provided.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle warming-up system 10 Heat storage apparatus 11 Housing | casing 12 Intermediate | middle member 13 Partition member 15 Cooling water distribution chamber (heat transfer medium distribution chamber)
16 Heat storage material storage room (heat storage element storage room)
17 Hydraulic oil distribution chamber (heat transfer medium distribution chamber)
18 Exhaust gas distribution chamber (heat transfer medium distribution chamber)
20 Thermal storage material (thermal storage element)
25 Nucleation device (release means)
30 engine (internal combustion engine)
31 Cooling water circulation path (heat transfer medium flow path)
35 Radiator circuit 36 Lubricating oil circuit (heat transfer medium channel)
37 Electronically controlled thermostat valve 38 Water temperature sensor 39 Lubricating oil pump 40 Automatic transmission 41 Hydraulic oil circulation path (heat transfer medium flow path)
44 Car heating device 45 Heater core 46 Blower fan 47 Radiator 50 Electronic control unit (ECU)
51 Heating switch 54 Outside air temperature sensor (outside air temperature detecting means)
55 Defroster switch 56 Ignition switch (IG switch)

Claims (15)

A heat storage device comprising: a heat storage element made of a latent heat storage material capable of storing heat in a supercooled state; and a supercooling release means for releasing the supercooled state of the heat storage element;
A heat transfer medium flow path for circulating a heat transfer medium between the engine to be warmed up and the heat storage device,
The heat storage device
A heat transfer medium flow chamber through which a heat transfer medium from the heat transfer medium flow path flows, and a plurality of heat storage element storage chambers storing the heat storage elements,
The plurality of heat storage element accommodation chambers are sequentially arranged along the flow direction of the heat transfer medium flowing through the heat transfer medium flow chamber,
In each of the heat storage elements accommodated in the plurality of heat storage element accommodation chambers, the time when heat storage by the heat supply from the heat transfer medium or the heat radiation by the release of the supercooling state is performed in the order of the arrangement of the heat storage element accommodation chambers. A warming-up system for a vehicle, characterized in that The heat storage of each heat storage element by heat supply from the heat transfer medium is performed in order from the upstream side to the downstream side in the flow direction of the heat transfer medium,
2. The warming for a vehicle according to claim 1, wherein the supercooling state of each of the heat storage elements is released by the supercooling release means in order from the downstream side to the upstream side in the flow direction of the heat transfer medium. Machine system.   The warming-up system for a vehicle according to claim 1 or 2, wherein the supercooling release means is provided in each of the plurality of heat storage element accommodation chambers.   The heat transfer medium circulation chamber is formed so that the flow of the heat transfer medium is linear, and the plurality of heat storage element accommodation chambers are arranged along the linear flow. A warming-up system for a vehicle according to any one of claims 1 to 3.   The heat transfer medium flow chamber is formed so that the flow of the heat transfer medium has a bent line shape having a bent portion, and the plurality of heat storage element accommodation chambers are arranged along the bent line flow. The warming-up system for a vehicle according to any one of claims 1 to 3, wherein A heat storage device comprising: a heat storage element made of a latent heat storage material capable of storing heat in a supercooled state; and a supercooling release means for releasing the supercooled state of the heat storage element;
A heat transfer medium flow path for circulating a heat transfer medium between the engine to be warmed up and the heat storage device,
The heat storage device
A heat transfer medium flow chamber through which a heat transfer medium from the heat transfer medium flow channel flows; and a plurality of heat storage element storage chambers that store the heat storage elements; and the supercooling release means includes the plurality of heat storage elements It is provided in each containment room,
Control means for controlling the supercooling release means,
When the vehicle is operated, the control means determines the number of heat storage elements to be radiated by releasing the supercooling state among the heat storage elements stored in the plurality of heat storage element storage chambers according to a predetermined criterion. A warming-up system for a vehicle characterized by determining and controlling the supercooling release means based on the determination.   The vehicle warm-up system according to claim 6, wherein the criterion is one driving time within a predetermined period of past driving of the vehicle.   The vehicle warm-up system according to claim 6, wherein the determination criterion is one driving time for each day of the week in past driving of the vehicle.   The vehicle warm-up system according to claim 6, wherein the determination criterion is a heat storage completion rate of the heat storage element within a predetermined period of past driving of the vehicle.   The vehicle warm-up system according to claim 6, wherein the determination criterion is a heat storage completion rate of the heat storage element for each day of the week in past driving of the vehicle. An outside air temperature detecting means for detecting the outside air temperature,
The vehicle warm-up system according to claim 6, wherein the determination criterion is an outside air temperature detected by the outside air temperature detecting means.   The vehicle warm-up system according to any one of claims 1 to 11, wherein the heat transfer medium is cooling water of an internal combustion engine.   The vehicle warm-up system according to any one of claims 1 to 11, wherein the heat transfer medium is lubricating oil for an internal combustion engine.   The vehicle warm-up system according to claim 1, wherein the heat transfer medium is exhaust gas discharged from an internal combustion engine.   The warming-up system for a vehicle according to any one of claims 1 to 11, wherein the heat transfer medium is a hydraulic fluid for a transmission.

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