JP2009280016A - Refrigeration cycle apparatus for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve fuel economy of a vehicle by efficiently storing cold/heat and releasing cold/heat by using data from a navigation device 20. <P>SOLUTION: An acceleration/deceleration pattern is produced from route data and cool temperature heat of a coolant is stored in a cold heat storage unit 6 during deceleration sections A-F based on the acceleration/deceleration pattern. A storage/release pattern for releasing the cool temeprature heat stored in the cold heat storage unit 6 to the coolant is produced during the acceleration sections a-f and a refrigeration cycle R is controlled based on the storage/release pattern. Thereby, when traveling along the route recommended by the navigation device 20, the energy at deceleration is stored/cooled as thermal energy and energy-saving of the vehicle can be attained by using the stored cold heat for cooling/heating at acceleration. Namely, fuel economy of the vehicle can be improved by efficiently storing cold/heat, in preparation for releasing cold/heat during the acceleration sections a-f, by using the preceding deceleration sections A-F. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a refrigeration cycle that is driven by a driving source of a vehicle to cool / heat a part of the interior of the vehicle, a cold storage heat tank that stores and cools heat by circulating a refrigerant in the refrigeration cycle, and map data. The present invention relates to a vehicular refrigeration cycle apparatus that includes a navigation device that uses a navigation device that searches for a route from a departure point to a destination, and a refrigeration control device that controls a refrigeration cycle using route data acquired from the navigation device.

A conventional regenerative braking device for a vehicle disclosed in Patent Document 1 is a conventional technique for storing cold energy in a regenerator using inertial energy at the time of vehicle braking and using the regenerator of the regenerator when accelerating the vehicle. Further, as a conventional technique for acquiring data from a navigation device for a vehicle and making a schedule for cold storage, there is a control device for a vehicle energy storage device of Patent Document 2 below.
JP 2003-158801 A JP 2002-36903 A

  However, in the prior art disclosed in Patent Document 1, since cold storage is used according to the actual running pattern, the stored cold heat cannot be used up, or energy that is thrown away during cold storage is generated, resulting in waste. There is a problem that the fuel consumption effect does not increase. In addition, the conventional technique disclosed in Patent Document 2 is a technique for acquiring gradient data from a navigation device and collecting energy on the downhill. However, this alone does not provide any energy saving effect when traveling on flat ground. There is a problem.

  The present invention has been made by paying attention to such problems existing in the prior art, and the object thereof is to efficiently store and cool and store and release heat and heat using data from the navigation device. An object of the present invention is to provide a refrigeration cycle device for a vehicle that can improve the fuel consumption of the vehicle by performing the above.

In order to achieve the above object, the present invention employs the following technical means. That is, according to the first aspect of the present invention, a refrigeration cycle (R) that is driven by a driving source of a vehicle to cool / heat a part of the interior of the vehicle, and a refrigerant is circulated in the refrigeration cycle (R). Cold storage / heat storage means (6) for storing / accumulating heat, a navigation device (20) for searching a route from the starting point to the destination using map data, and a refrigeration cycle using route data acquired from the navigation device (20) In a vehicle refrigeration cycle apparatus comprising a refrigeration control means (10) for controlling (R),
An acceleration / deceleration pattern including an acceleration section (af), a deceleration section (AF), and a speed difference caused by each acceleration / deceleration is generated from the route data, and based on the acceleration / deceleration pattern, the deceleration section (AF) Then, the cool / heat energy of the refrigerant is stored in the cool storage heat means (6), and in the acceleration section (af), a storage / discharge pattern is generated to release the cool / heat heat stored in the cool storage heat means (6) to the refrigerant. The refrigeration cycle (R) is controlled based on the pattern.

  According to the first aspect of the present invention, when traveling along a route recommended by the navigation device (20), an acceleration / deceleration pattern can be generated using route data from the navigation device (20). Therefore, the energy at the time of deceleration is stored as heat energy from the acceleration / deceleration pattern, and the stored energy is used for cooling / heating at the time of acceleration to save the vehicle energy. In other words, in preparation for cooling / dissipating heat in the acceleration section (af), the fuel consumption of the vehicle is improved by efficiently using the deceleration section (A-F) before it to efficiently store / store heat. Can be achieved.

  Moreover, in invention of Claim 2, in the refrigeration cycle apparatus for vehicles of Claim 1, the refrigeration control means (10) has a cooling / heat radiation amount required for each acceleration section (af), The cold storage / heat storage amount that can be accumulated in each deceleration section (A to F) is calculated, and the cold storage / heat storage means (6) at the time (P1 to P6) when acceleration is completed while performing necessary cooling / radiation in each acceleration section. ), The amount of cold storage / heat storage in each deceleration section (A to F) before the acceleration section (af) is determined so that the amount of cold / hot heat remaining in () is almost eliminated.

  According to the second aspect of the present invention, only the amount of cold and heat used for cooling / dissipating heat in the acceleration zone (af) is stored / cooled in the previous deceleration zone (AF), thereby wasting it. It is possible to store and release without any.

  According to a third aspect of the present invention, in the refrigeration cycle device for a vehicle according to the first or second aspect, the refrigerating cycle temperature detecting means (8) for detecting the temperature in the cold storage heat means (6) is provided. The control means (10) calculates the amount of available cold / hot heat in the cold storage heat means (6) from the temperature detected by the cold storage heat temperature detection means (8), and includes the remaining cold / heat quantity, in the deceleration zone (A˜). F) It is characterized in that the cold storage / heat storage amount is determined every time.

  According to the third aspect of the present invention, the available cold / hot heat remaining in the cold storage heat means (6) is also effectively used, for example, from the first acceleration section (a) from the starting point. Cooling / dissipating heat can also be performed, and wasteful storage can be achieved.

  According to a fourth aspect of the present invention, in the refrigeration cycle apparatus for a vehicle according to any one of the first to third aspects, the refrigeration control means (10) is allowed to cool for each acceleration section (af). / The cold storage / heat storage amount corresponding to the heat release amount is preferentially assigned from the deceleration section (AF) close to the acceleration section (af). According to the fourth aspect of the present invention, the cold / heat stored and stored is immediately used for cooling / dissipating heat, and since the cold / heat is not stored for a long time, it can be stored without waste.

  According to a fifth aspect of the present invention, in the refrigeration cycle apparatus for a vehicle according to any one of the first to fourth aspects, an outside air temperature detecting means (9) for detecting the temperature of the outside air is provided, and the refrigeration control means (10 ) Is characterized in that the cooling / heat radiation amount calculated for each acceleration section (af) is corrected according to the outside air temperature detected by the outside air temperature detecting means (9).

  According to the fifth aspect of the present invention, when applied to the cooling and heating of the passenger compartment, the amount of cooling is increased as the outside air temperature is higher, or the heat release amount is increased as the outside air temperature is lower. Air conditioning that suits the sense of

  According to a sixth aspect of the present invention, in the refrigeration cycle apparatus for a vehicle according to any one of the first to fifth aspects, the refrigeration control means (10) stores the cold when reaching the destination in the storage / release pattern. It is characterized in that correction is made so that the amount of cold / hot heat remaining in the heating means (6) is almost eliminated. According to the sixth aspect of the present invention, it is possible to store and discharge wastelessly by not leaving the cool / warm heat that is not scheduled to be used.

  According to a seventh aspect of the present invention, in the vehicular refrigeration cycle apparatus according to any of the first to sixth aspects, the navigation device (20) includes receiving means (29) for receiving road traffic information. The route data is generated in consideration of the road traffic information. According to the seventh aspect of the invention, a more accurate acceleration / deceleration pattern can be generated by taking into account traffic jams, speed restrictions, and the like.

  According to an eighth aspect of the present invention, in the refrigeration cycle apparatus for a vehicle according to the seventh aspect, the refrigeration control means (10) repeatedly accelerates and decelerates a section assumed to be congested according to road traffic information in small increments. The storage / release pattern is generated using a predetermined traffic jam driving pattern. According to the eighth aspect of the present invention, the fuel saving effect of the vehicle can be improved by executing cold storage / heat storage and cool / heat release in small intervals even in a section assumed to be congested. In addition, the code | symbol in the parenthesis as described in a claim and said each means is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a schematic diagram showing a schematic configuration of a regenerative heat type vehicle air conditioner (hereinafter abbreviated as an air conditioner) in the first embodiment of the present invention. The cold storage heat type air conditioner includes a heat pump type refrigeration cycle R as a heat source, a cold storage heat generator (cold heat storage means) 6 as a cold storage heat means, and an air conditioning control device (refrigeration control means) for controlling these operations. 10 and a navigation device 20 that searches for a route from the departure point to the destination using map data, and will be described in order below.

  The heat pump type refrigeration cycle R includes a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, an expansion valve 4, an indoor heat exchanger 5, and a cold storage heat exchanger 6, which are communicated in a ring shape with refrigerant piping. Thus, one refrigeration cycle R is configured. The compressor 1 is a fluid machine that is driven by a travel engine (not shown) serving as a drive source of a vehicle and compresses and discharges the refrigerant in the refrigeration cycle R to high temperature and high pressure.

  The compressor 1 is, for example, a swash plate type variable displacement compressor capable of adjusting the discharge capacity per one rotation, and the discharge capacity is adjusted by an air conditioning control device 10 described later. The discharge capacity of the compressor 1 is continuously adjusted from the minimum discharge capacity that is substantially zero to the maximum discharge capacity that can be discharged by the compressor 1 itself. The discharge amount of the compressor 1 is determined by the product of the discharge capacity and the compressor rotation speed.

  Further, the required power during operation of the compressor 1 correlates with the discharge amount. The compressor 1 is a clutch type compression in which the discharge capacity per rotation is fixed and the driving force from the engine is intermittently connected / disconnected by the connection / disconnection of the electromagnetic clutch 1a instead of the above-described variable capacity compressor. It is good as a machine. In the compressor in this case, the substantial discharge amount can be adjusted by changing the ratio between the connection time and the disconnection time of the electromagnetic clutch 1a.

  The circulation direction of the refrigerant discharged from the compressor 1 can be reversed by switching the four-way valve 2, whereby the cooling mode (indicated by the solid line arrow in FIG. 1) and the heating mode (indicated by the broken line arrow in FIG. 1). Direction). The operation of the four-way valve 2 is also controlled by the air conditioning control device 10, and the cooling mode and the heating mode are selected.

The outdoor heat exchanger 3 is a heat exchanger that is disposed in the front part of the vehicle and exchanges heat with the outside air, and includes a blower (not shown) for ventilating the outside air. Further, an outdoor air temperature sensor (outside air temperature detecting means) 9 for detecting the temperature of the outside air is disposed further forward of the vehicle than the outdoor heat exchanger 3, and the detected value is input to the air conditioning control device 10. The
The expansion valve 4 is a valve mechanism that decompresses and expands the refrigerant compressed by the compressor 1 in an enthalpy manner. The expansion valve 4 is provided with a bleed port 4a as a throttling mechanism arranged in parallel with the expansion valve 4. The degree of throttling of the bleed port 4a is set to about 1/10 with respect to the maximum opening of the expansion valve 4. During normal refrigeration cycle operation, the refrigerant flows through the expansion valve 4 and stops the compressor 1. If the expansion valve 4 is closed, the refrigerant flows through the bleed port 4a.

  The indoor heat exchanger 5 is disposed in an air conditioning case 5a that communicates with the vehicle interior space. An air blower 5b is disposed on the upstream side of the indoor heat exchanger 5 in the air conditioning case 5a, and is controlled by the air conditioning control device 10 so that the outside air (vehicle exterior air) or the interior air (vehicle interior air) is transferred to the indoor heat exchanger 5. The cool air / warm air cooled / heated by the indoor heat exchanger 5 is blown out into the passenger compartment.

  The regenerator 6 is a heat storage tank provided in parallel with the on-off valve 7 provided in the middle of the refrigerant circuit. The cold storage heat exchanger 6 includes a cold storage heat exchanger 6a and a cold storage heat tank 6b that accommodates the cold storage heat exchanger 6a therein. The cold storage heat tank 6b is filled with a predetermined amount of a heat storage material such as paraffin or water, and the heat storage material comes into contact with the outer surface of the cold storage heat exchanger 6a. The regenerator 6 can be formed as a shell and tube type heat exchanger, for example.

  The on / off valve 7 is controlled to open / close by the air conditioning control device 10. When the cold storage / heat storage is not performed, the on-off valve 7 is in an open state, and the refrigerant flows by bypassing the cold storage heat generator 6. When cold storage / heat storage is performed, or when cool / heat stored / stored in the regenerator 6 is cooled / radiated, the on-off valve 7 is closed and the regenerator 6 is connected in series in the refrigerant circuit. Thereby, a refrigerant | coolant flows through the cool storage heat exchanger 6a, and heat-exchanges with a thermal storage material, The cold / hot heat of a refrigerant | coolant can be stored in a thermal storage material, or the cold / hot heat stored in the thermal storage material can be taken out to a refrigerant | coolant.

  In addition, the heat transfer performance as the cool storage heat exchanger 6 can be determined by selecting the heat storage material, setting the heat exchange capacity (physique) of the cool storage heat heat exchanger 6a, and the amount of the heat storage material enclosed. The regenerator 6 is provided with a regenerator temperature sensor (cold regenerator temperature detector) 8 that detects the temperature of the regenerator material, and the detected value is input to the air conditioning controller 10. The air conditioning control device 10 calculates a usable amount of cold / hot heat based on the detected value.

  The operation of the above-described heat pump type and regenerative heat type air conditioner is controlled by the air conditioning control device 10. The air-conditioning control device 10 receives detection values of the above-described cold storage heat temperature sensor 8 and the outside air temperature sensor 9, and the compressor 1 (or electromagnetic clutch 1a), the four-way valve 2, the blower 5b, the on-off valve 7, and the like. Output a control signal. In addition, the air conditioning control device 10 of the present embodiment is connected to a navigation device 20 mounted on a vehicle by a communication line, and performs bidirectional data communication. In this data communication, a communication line may be omitted using wireless communication such as Blue Tooth (registered trademark).

  Next, the outline | summary of the navigation apparatus 20 is demonstrated using FIG. FIG. 2 is a block diagram showing a schematic configuration of the navigation device 20 in FIG. As shown in FIG. 2, the navigation device 20 includes a position detector 21, a map data input device 26, an operation switch group 27, an external memory 28, a VICS (registered trademark) receiver 29 as a receiving means of the present invention, and a communication device 30. , A microphone 31, an audio output device 32, a display device 33, a remote control sensor 34, a remote control terminal (so-called remote control) 35, and a control device 36 connected thereto.

  The position detector 21 is for detecting the current position of the vehicle. The GPS (Global Positioning System) detects the position of the vehicle based on radio waves from the geomagnetic sensor 22, distance sensor 23, gyroscope 24, and satellite. A GPS receiver 25 is provided. Depending on the accuracy, a part of the above may be used, and further, a steering rotation sensor, a wheel sensor of each rolling wheel, or the like may be used. The position detector 21 can add and display a vehicle current position mark indicating the current position on the display device 33.

  The map data input device 26 is loaded with a storage medium (not shown), and inputs various data including so-called map matching data, map data, and landmark data for improving the accuracy of position detection stored in the storage medium. It is a device for doing. The storage medium also stores various facility types, names, address data, and the like, and these data are used for destination setting for route search. Note that a CD-ROM or DVD-ROM, a memory card, an HDD, or the like is used as the storage medium.

  As the operation switch group 27, for example, a touch switch integrated with the display device 33, a mechanical switch, or the like is used, and an operation instruction for various functions is given to the control device 36 by a switch operation. The operation switch group 27 includes switches for setting a departure place and a destination. By operating this switch, the user can set the departure point and the destination from a registered point, facility name, telephone number, address, and the like.

  The external memory 28 is a writable mass storage device such as an HDD (hard disk drive) or a flash ROM. The external memory 28 stores a large amount of data, data that should not be erased even when the power is turned off, and frequently used data copied from the map data input device 26 for use. is there. In the present embodiment, vehicle information and answer results of questions from the user (referred to as interviews) are also stored in the external memory 28. The external memory 28 may be a removable memory having a relatively small storage capacity.

  The VICS receiver 29 is a wireless receiver that receives road traffic congestion information, traffic regulation information, and the like wirelessly transmitted from roadside equipment installed along the road and outputs the information to the control device 36. The VICS receiver 29 may be either externally attached to the navigation device 20 or built in. The communication device 30 is a device that enables communication with the outside of the vehicle using a mobile phone or the like.

  The microphone 31 is installed on the steering column of the vehicle and is used for voice recognition and hands-free calling of a mobile phone. The voice output device 32 includes a speaker or the like, and is used for talkback of a voice recognition result, reception voice of a hands-free call, output of route voice guidance, and the like.

  The display device 33 is capable of full-color display, and can be configured using a liquid crystal display, an organic EL display, a plasma display, and the like. The map data input from the map data input unit 26 and the position detector 21 are displayed. The vehicle current position mark generated based on the position information from the vehicle and the additional data such as the guide route displayed on the map can be displayed in an overlapping manner.

  The remote control 35 is provided with a plurality of operation switches (not shown). By inputting various command signals to the control device 36 via the remote control sensor 34 by the switch operation, the same functions as the operation switch group 27 are provided to the control device 36. It is possible to execute. The control device 36 is configured as a normal computer, and includes a well-known CPU, ROM, RAM, I / O, and a bus line (all not shown) for connecting these configurations.

  The control device 36 includes a geomagnetic sensor 22, a distance sensor 23, a gyroscope 24, a GPS receiver 25, a map data input device 26, an operation switch group 27, an external memory 28, a VICS receiver 29, and various inputs input from the remote control sensor 34. Based on the information, processing as a navigation function (for example, route search) is executed.

  Information processed by the control device 36 is notified to the user by the audio output device 32 and the display device 33. Note that a program for performing defect information acquisition processing is stored in a ROM in the control device 36, and the ROM also has a function corresponding to storage means for storing an acceleration / deceleration (running) pattern described later in the present embodiment. Have. The map data, recommended route, traffic jam information, and the like may be used by storing data acquired from a center such as G-BOOK (registered trademark) in a storage means such as a ROM.

  FIG. 3 is a flowchart showing a schematic process of the navigation device 20, and FIG. 4 is a flowchart showing a schematic process of the air conditioning control device 10 according to the first embodiment of the present invention. FIG. 5 is a time chart showing an example of an acceleration / deceleration pattern by the process of FIG. 3 and an example of a storage / release pattern by the process of FIG.

  First, in step S1 in the flowchart of FIG. 3, route data from the departure place to the destination is created. At this time, in order to obtain a more accurate acceleration / deceleration pattern, which will be described later, if there is road traffic information such as traffic congestion or speed regulation from the VICS receiver 29, route data taking into account the road traffic information is generated.

  In step S2, the section where the acceleration / deceleration is predicted, such as intersections, curves, interchanges, and railroad crossings, the distance to the acceleration / deceleration section, the length of the acceleration / deceleration section, the speed difference before and after the acceleration / deceleration, etc. From this, the acceleration / deceleration pattern shown on the upper side of FIG. 5 is created. In step S3, the created acceleration / deceleration pattern is transmitted to the air conditioning control device 10.

  Next, in step S10 in the flowchart of FIG. 4, the acceleration / deceleration pattern created by the navigation device 20 is received. In step S20, each acceleration section (af in the example of FIG. 5) in the received acceleration / deceleration pattern is received. In step S30, priorities are assigned in descending order of the obtained speed difference. Note that the speed difference and priority order calculated here may be calculated in advance on the navigation device 20 side and sent to the air conditioning control device 10 as data, or a third unit (not shown) may be used.

  In step S40, the amount of cooling (heat radiation) required in each acceleration section af and the amount of cold storage (heat storage) that can be accumulated in each deceleration section (A to F in the example of FIG. 5) are calculated. In step S50, the remaining cold storage (heat storage) amount becomes almost zero at the acceleration end point (when the acceleration is completed, P1 to P6 in the example of FIG. 5) in the order of the higher priority acceleration sections assigned in step S30. Next, determine the amount of cold storage (heat storage) in the previous deceleration zone.

  For example, in the example of FIG. 5, the speed difference is the largest in the acceleration section d from entering the highway and passing through the lane to the high speed steady speed, and is the highest priority acceleration section in which the cold storage heat is desired. For this reason, in order to secure the amount of cooling (heat radiation) in the acceleration section d, as much cold storage (heat storage) as possible is allocated in the preceding deceleration section C and further in the preceding deceleration section B. Since there is not enough, cold storage (heat storage) is performed even during steady running after passing the intersection (after P2), and the amount of cooling (heat radiation) in the acceleration section c after the subsequent level crossing is stopped is reduced.

  It is also possible to eliminate the cooling (heat radiation) in the acceleration section c after the railroad crossing is temporarily stopped, and instead, a pattern in which cold storage (heat storage) is not performed during steady running after passing the intersection (after P2). In this way, only the amount of cold / hot heat used for cooling / dissipating heat in the acceleration section is stored / stored in the previous deceleration section. In addition, in order to prevent cold / heat from being stored for as long as possible, the cold storage / heat storage amount corresponding to the cooling / radiation amount necessary for each acceleration section is preferentially allocated from the deceleration section close to the acceleration section, The cold / heat stored and stored is immediately used for cooling / dissipating heat.

  In step S60, correction is made so that the amount of cold / hot heat remaining in the regenerator 6 at the time of arrival at the destination is almost eliminated. In the example of FIG. 5, cold storage / heat storage is not performed in the last deceleration section F. This is an operation for avoiding leaving cold and hot heat that is not planned to be used. In addition, in this embodiment, since the cold / hot heat is not left in this way, there is no cold / heat stored in the first acceleration section a from the starting point to the steady running until the first acceleration section a. Cooling / dissipating heat cannot be performed.

  In step S70, the final storage / release pattern with the correction added is stored in the ROM. Thereafter, the storage and release in the refrigeration cycle R is controlled based on the storage and release pattern created by the air conditioning control device 10 as the vehicle travels according to the route set by the navigation device 20.

  Note that the storage / release pattern data used here is not limited to the air conditioning control device 10 but may be stored in the ROM of the navigation device 20 or a third storage device may be used. Further, when the route is left, the acceleration / deceleration pattern and the storage / discharge pattern are calculated again from the route obtained after re-search (reroute), and the control is resumed.

  Next, the features and effects of this embodiment will be described. First, an acceleration / deceleration pattern including the acceleration sections a to f, the deceleration sections A to F, and the speed difference caused by each acceleration / deceleration is generated from the path data. Based on the acceleration / deceleration pattern, the compressor 1 in the deceleration sections A to F is generated. Is stored in the regenerator 6, and the accumulator / discharge pattern that releases the cool / heat stored in the regenerator 6 to the refrigerant is generated in the acceleration sections a to f. The refrigeration cycle R is controlled.

  According to this, when traveling along a route recommended by the navigation device 20, an acceleration / deceleration pattern can be generated using route data from the navigation device 20. Is stored as heat energy, and the stored heat is used for cooling / heating at the time of acceleration to save energy of the vehicle. In other words, in preparation for cooling / dissipating heat in the acceleration sections a to f, and effectively using the deceleration sections A to F before that to efficiently store and store heat, without using extra energy, The fuel consumption of the vehicle can be improved.

  In addition, the refrigeration control apparatus 10 calculates the amount of cool / heat release necessary for each acceleration section a to f and the amount of cool / heat storage that can be stored for each of the deceleration sections A to F. Cold storage / heat storage for each of the deceleration sections A to F prior to the acceleration sections a to f so that the amount of cold and heat remaining in the regenerator 6 is almost eliminated at the time points P1 to P6 when the acceleration is completed while performing cooling / dissipating heat. I try to determine the amount. According to this, only the amount of cold / hot heat used for cooling / dissipating heat in the acceleration sections a to f is stored / stored in the previous deceleration sections A to F, so that it is possible to store and discharge without waste.

  In addition, the refrigeration control apparatus 10 preferentially assigns the cold storage / heat storage amount corresponding to the cooling / heat radiation amount necessary for each acceleration section a to f from the deceleration sections A to F close to the acceleration sections a to f. I have to. According to this, the cold / heat stored and stored is immediately used for cooling / dissipating heat, and since the cold / heat is not stored for a long time, it is possible to store without waste.

  In addition, the refrigeration control device 10 corrects so that the amount of cold / hot heat remaining in the regenerator 6 is almost eliminated when it reaches the destination in the storage / release pattern. According to this, it is possible to store and release without waste by not leaving the cool / warm heat that is not planned to be used.

  The navigation apparatus 20 includes a VICS receiver 29 that receives road traffic information, and the route data is generated in consideration of the road traffic information. According to this, it is possible to generate a more accurate acceleration / deceleration pattern by taking into account traffic jams and speed regulation.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. First, FIG. 6 is a flowchart showing a schematic process of the air conditioning control device 10 in the second embodiment of the present invention. FIG. 7 shows an example of an acceleration / deceleration pattern by the process of FIG. 3 and an example of a storage / release pattern by the process of FIG. It is a time chart which shows.

  In the present embodiment, the same components as those in the first embodiment described above are denoted by the same reference numerals, description thereof is omitted, and different configurations and features will be described. In the flowchart of FIG. 6, as step S35, the available cold / heat amount in the regenerator 6 is calculated from the temperature of the heat storage material detected by the cool storage / heat temperature sensor 8, and in the subsequent step S50, the remaining heat / heat is stored. The cold storage / heat storage amount is determined for each of the deceleration sections A to F including the cold / hot heat amount.

  According to this, by effectively using the available cool / warm heat remaining in the regenerator 6, for example, it is possible to cool / dissipate heat from the first acceleration section a from the departure place (FIG. 7). Reference), saving and releasing without waste is possible. Therefore, in the present embodiment, the “correction to make the amount of cold / hot heat remaining at the destination 0” performed in step S60 of FIG. 4 in the first embodiment described above is stopped, and even in the final deceleration section F at the time of arrival at the destination. If possible, cold storage / heat storage is performed, and the cold and warm heat accumulated by the process is kept.

  In the flowchart of FIG. 6, as step S <b> 45, the cooling / heat radiation amount calculated for each of the acceleration sections a to f is corrected according to the outside air temperature detected by the outside air temperature sensor 9. FIG. 8 is a graph showing an outline of correction of cooling / dissipating heat with respect to the outside air temperature. In the cooling state in which cooling is performed, the amount of cooling is suppressed when the outside air temperature is low, and the amount of cooling is increased as the outside temperature increases.

  In the heating state in which heat is radiated, the amount of heat radiation is suppressed when the outside air temperature is high, and the amount of heat radiation is increased as the outside air temperature decreases. In this way, it can be applied to the cooling and heating of the passenger compartment, and the amount of cooling can be increased as the outside air temperature increases, or the amount of heat released can be increased as the outside air temperature decreases. It becomes.

  In addition, the refrigeration control apparatus 10 stores a section that is assumed to be congested based on road traffic information (section indicated by IX in FIG. 7) using a predetermined congested driving pattern (see FIG. 9) that repeatedly accelerates and decelerates. A release pattern is generated. FIG. 9 is a graph showing an example of the traffic jam driving pattern. According to this, the fuel saving effect of the vehicle can be improved by executing cold storage / heat storage and cooling / radiation in small increments even in a section assumed to be congested. This correction may be performed by either the navigation device 20 or the refrigeration control device 10.

(Other embodiments)
The present invention is not limited to the above-described embodiments, and can be modified or expanded as follows. For example, in the above-described embodiment, the present refrigeration cycle apparatus is used for cooling / heating of the interior of the vehicle. It may be applied. In the above-described embodiment, prioritization is performed in the order of acceleration sections having a large speed difference. However, prioritization may be performed in order of acceleration sections that require high acceleration.

  In addition to the actually created route data, an acceleration / deceleration pattern and a storage / release pattern such as a demonstration pattern or a simulation pattern may be registered in advance in the navigation device 20 and the pattern may be used. For example, if you register the acceleration / deceleration pattern on the circuit, it can be used when driving on the circuit, and it can also be used for running simulation on a chassis dynamo by using only the pattern even if there is no road. Can be used to measure the actual fuel consumption.

  In addition, when the outside air temperature is predicted to change depending on the weather forecast or time, correction may be added to the cooling / heat radiation amount calculated for each acceleration section. Further, according to the heat cost estimated from the running pattern, it may be a pattern of cooling / dissipating heat when the heat cost is high and storing / cooling heat when the heat cost is low.

It is a schematic diagram which shows schematic structure of the cool storage heat type vehicle air conditioner in 1st Embodiment of this invention. It is a block diagram which shows schematic structure of the navigation apparatus 20 in FIG. 4 is a flowchart showing a schematic process of the navigation device 20. It is a flowchart which shows the schematic process of the air-conditioning control apparatus 10 in 1st Embodiment of this invention. It is a time chart which shows the example of the acceleration / deceleration pattern by the process of FIG. 3, and the storage / release pattern example by the process of FIG. It is a flowchart which shows the schematic process of the air-conditioning control apparatus 10 in 2nd Embodiment of this invention. It is a time chart which shows the example of an acceleration / deceleration pattern by the process of FIG. 3, and the storage / release pattern example by the process of FIG. It is a graph which shows the outline of correction | amendment of the cooling / radiation amount with respect to external temperature. It is a graph which shows an example of a traffic jam driving pattern.

Explanation of symbols

6 ... Cold storage heat storage (cool storage heat means)
8 ... Cold storage heat temperature sensor (cool storage heat temperature detection means)
9 ... Outside air temperature sensor (outside air temperature detecting means)
10 ... Air conditioning control device (refrigeration control means)
20. Navigation device 29 ... VICS receiver (reception means)
a to f: acceleration section A to F: deceleration section P1 to P6: acceleration end point (when acceleration is completed)
R ... Refrigeration cycle

Claims (8)

A refrigeration cycle (R) driven by a vehicle drive source to cool / heat a portion of the interior of the vehicle;
Cold storage heat storage means (6) for storing or storing heat by circulating a refrigerant in the refrigeration cycle (R);
A navigation device (20) for searching for a route from the departure point to the destination using map data;
In a vehicle refrigeration cycle apparatus comprising: refrigeration control means (10) for controlling the refrigeration cycle (R) using route data acquired from the navigation device (20);
An acceleration / deceleration pattern including an acceleration section (af), a deceleration section (AF), and a speed difference caused by each acceleration / deceleration is generated from the route data, and the deceleration section (A ~ F) is generated based on the acceleration / deceleration pattern. In F), the cold energy of the refrigerant is accumulated in the cold energy storage means (6), and in the acceleration section (af), an accumulating / releasing pattern for releasing the cold energy stored in the cold energy storage means (6) to the refrigerant is generated. And the said refrigerating cycle (R) is controlled based on the storage / release pattern, The refrigeration cycle apparatus for vehicles characterized by the above-mentioned.   The refrigeration control means (10) calculates a cooling / heat radiation amount necessary for each acceleration section (af) and a cold storage / heat storage amount that can be stored for each deceleration section (AF), The acceleration sections (a to) so that the amount of cold and heat remaining in the cold storage heat means (6) substantially disappears when the acceleration is completed (P1 to P6) while performing necessary cooling / dissipation in each acceleration section. The vehicle refrigeration cycle apparatus according to claim 1, wherein a cold storage / heat storage amount for each deceleration section (A to F) before f) is determined.   A cold storage heat temperature detection means (8) for detecting the temperature in the cold storage heat means (6) is provided, and the refrigeration control means (10) detects the cold storage temperature from the temperature detected by the cold storage heat temperature detection means (8). The amount of cold / heat storage that can be used in the heat means (6) is calculated, and the amount of cold storage / heat storage for each deceleration section (A to F) is determined including the remaining cold / heat amount. The vehicle refrigeration cycle apparatus according to 2.   The refrigeration control means (10) is configured so that the amount of cold storage / heat storage corresponding to the amount of cooling / dissipation required for each acceleration section (af) is equal to the deceleration section (a to f) close to the acceleration section (af). The refrigeration cycle apparatus for vehicles according to any one of claims 1 to 3, wherein the refrigeration cycle apparatus is preferentially assigned from A to F).   An outside air temperature detecting means (9) for detecting the temperature of the outside air is provided, and the refrigeration control means (10) uses the cooling / heat radiation amount calculated for each acceleration section (af) as the outside air temperature detecting means. The vehicle refrigeration cycle apparatus according to any one of claims 1 to 4, wherein correction is made in accordance with the outside air temperature detected in (9).   The said refrigeration control means (10) correct | amends so that the amount of cold / hot heat which remains in the said cold storage heat | fever means (6) may be substantially eliminated at the time of arrival at the destination in the said storage / release pattern. The vehicle refrigeration cycle apparatus according to any one of 5 to 5.   The navigation device (20) includes a receiving means (29) for receiving road traffic information, and the route data is generated in consideration of the road traffic information. The vehicle refrigeration cycle apparatus according to any one of the above.   The said freezing control means (10) produces | generates the said storage / release pattern using the predetermined traffic congestion driving pattern which repeats acceleration / deceleration little by little in the area assumed traffic jam by the said road traffic information. The vehicle refrigeration cycle apparatus according to claim 7.

Images