JP2005193749A - Controller - Google Patents

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JP2005193749A
JP2005193749A JP2004001113A JP2004001113A JP2005193749A JP 2005193749 A JP2005193749 A JP 2005193749A JP 2004001113 A JP2004001113 A JP 2004001113A JP 2004001113 A JP2004001113 A JP 2004001113A JP 2005193749 A JP2005193749 A JP 2005193749A
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target
control
response
evaporator
value
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Kenichi Suzuki
謙一 鈴木
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Sanden Corp
サンデン株式会社
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/00807Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being a specific way of measuring or calculating an air or coolant temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00735Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
    • B60H1/0075Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models the input being solar radiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00821Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
    • B60H1/00835Damper doors, e.g. position control
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H1/3204Cooling devices using compression
    • B60H1/3205Control means therefor
    • B60H1/3211Control means therefor for increasing the efficiency of a vehicle refrigeration cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plant or systems
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • G05B13/0205Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system
    • G05B13/026Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric not using a model or a simulator of the controlled system using a predictor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/0073Control systems or circuits characterised by particular algorithms or computational models, e.g. fuzzy logic or dynamic models
    • B60H2001/00733Computational models modifying user-set values
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H2001/3236Cooling devices information from a variable is obtained
    • B60H2001/3239Cooling devices information from a variable is obtained related to flow
    • B60H2001/3241Cooling devices information from a variable is obtained related to flow of air
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H2001/3236Cooling devices information from a variable is obtained
    • B60H2001/3255Cooling devices information from a variable is obtained related to temperature
    • B60H2001/3261Cooling devices information from a variable is obtained related to temperature of the air at an evaporating unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H2001/3236Cooling devices information from a variable is obtained
    • B60H2001/3266Cooling devices information from a variable is obtained related to the operation of the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H2001/3269Cooling devices output of a control signal
    • B60H2001/327Cooling devices output of a control signal related to a compressing unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/32Cooling devices
    • B60H2001/3269Cooling devices output of a control signal
    • B60H2001/327Cooling devices output of a control signal related to a compressing unit
    • B60H2001/3275Cooling devices output of a control signal related to a compressing unit to control the volume of a compressor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2500/00Problems to be solved
    • F25B2500/19Calculation of parameters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2700/00Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21Temperatures
    • F25B2700/2106Temperatures of fresh outdoor air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2700/00Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21Temperatures
    • F25B2700/2117Temperatures of an evaporator
    • F25B2700/21171Temperatures of an evaporator of the fluid cooled by the evaporator
    • F25B2700/21173Temperatures of an evaporator of the fluid cooled by the evaporator at the outlet

Abstract

<P>PROBLEM TO BE SOLVED: To provide a controller which is constituted simple for a control system, and capable of obtaining an optimum response of the control output by arbitrarily changing the responsiveness of the object to be controlled corresponding to the increase or decrease of an output target in a control output response target calculation means. <P>SOLUTION: The controller comprises a control object control means, a control output detection means, a control output target setting means, a control input operation means, a control output target response calculation means, a control output feedback operation means, and a feed-forward control input estimation operation means. When the output target is changed, the output target before the change is compared with the output target after the change. When the output target is increased or decreased, the calculation method of the output target response value is changed in each case so that the transitional response of the control output target is different when the output target is increased or decreased. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、制御装置に関し、特に、目標値に応じて、制御入力値を演算、及び出力し、フィードバック(PID演算等)により制御対象を制御する装置に関する。 The present invention relates to a control device, in particular, according to the target value, it calculates a control input value, and outputs, to an apparatus for controlling a controlled object by a feedback (PID calculation or the like). 中でも、外部制御信号による容量可変圧縮機を有する冷凍サイクルにおいて、とくに、圧縮機の容量を制御することで冷凍サイクルの蒸発器温度を制御する際に用いて好適な制御装置に関する。 Above all, in the refrigerating cycle having a variable displacement compressor according to an external control signal, in particular, it relates to a suitable control device used for controlling the evaporator temperature of the refrigeration cycle by controlling the capacity of the compressor.

本出願人は先に特許文献1において、、とくに車両用空調装置におけるオートエアコンシステムに適用できる制御装置であり、制御対象出力がその目標値に到達するための過渡状態における目標応答を算出し指定する制御対象出力目標応答算出手段、制御対象出力目標応答値となるようなフィードフォワード制御入力予測手段を有し、かつ、制御対象出力目標応答と制御対象出力との偏差を演算する制御対象出力フィードバック手段を備えた制御装置であって、フィードフォワード制御入力とフィードバック制御入力との和を制御対象への制御入力として制御対象を制御するようにした制御装置を提案している。 The applicant is a control device that can be applied to the automatic air-conditioning system in a ,, particularly a vehicle air conditioner in Patent Document 1 above, specify calculates a target response in a transient state for the controlled object output has reached its target value controlled object output target response calculation means for, having a feed-forward control input prediction unit such as a control target output target response value, and the controlled object output feedback for calculating a deviation between the controlled object output a control object output target response a control apparatus having means has proposed a control apparatus that controls the controlled object to the sum of the feedforward control input and the feedback control input as the control input to the controlled object.

この提案により、構成部品、制御系を大幅に簡素化し、安価に実施可能な、車両用空調装置における冷凍サイクルの制御の好適な制御装置を実現することが可能となった。 This proposal, components, greatly simplifying the control system, inexpensive feasible, it becomes possible to realize a suitable control device for controlling the refrigeration cycle in an air conditioning system for vehicles.
特開2003−191741号公報 JP 2003-191741 JP

ところが、上記提案に係る制御装置においては、以下のような懸念点が残されている。 However, in the control device according to the above proposal, the following concern remain. すなわち、制御対象の出力が、上昇あるいは下降する場合において、極端に応答性が変わるとき、上記提案における制御対象出力応答目標値が一つの応答性しか持たない場合には、オーバーシュートの発生や、応答が遅くなることがある。 That is, the output of the controlled object, in the case of raised or lowered extremely when the response is changed, if the control object output response target value in the proposal has only one response is generated and overshoot, there is that the response is slow. また、制御対象の出力応答を、出力目標値の上昇あるいは下降においてそれぞれ異なるものとしたい場合には、上記先の提案に係る制御装置では対応できないことが考えられる。 Further, the output response of the controlled object, when it is desired to respectively different in rising or falling of the output target value, it is considered that can not be handled by the control device according to the above suggestions destination.

そこで本発明の課題は、上記先の提案に係る制御装置と同様に制御系としては簡素に構成しつつ、制御対象出力応答目標算出手段において、制御対象の応答性を、出力目標値の上昇または下降時に対応させてそれぞれ任意に変化させ、制御対象出力のより最適な応答が得られるようにした制御系を構築することにある。 Accordingly, an object of the present invention, while simple constructed as a control device as well as a control system according to the above suggestions destination, the controlled object output response target calculating means, the response of the controlled object, the target output value increases or each varied arbitrarily in correspondence during descent is to construct a control system for a more optimal response of the control target output is thus obtained.

上記課題を解決するために、本発明に係る制御装置は、制御対象を制御入力に基づき操作し、制御対象の出力としての制御量を制御する制御対象制御手段と、制御対象の出力を検知する制御対象出力検知手段と、制御対象出力値の目標値を設定する制御対象出力目標値設定手段と、制御対象への制御入力を演算する制御入力演算手段と、制御対象出力値が目標値に到達するための過渡状態における目標応答を算出し指定する制御対象出力目標応答算出手段と、制御対象出力目標応答値と制御対象出力値との偏差を参照することによりフィードバック制御入力を演算する制御対象出力フィードバック演算手段と、制御対象出力目標応答算出手段により演算される目標応答における過渡特性を実現するに必要なフィードフォワード制御入力を予測 In order to solve the above problems, a control apparatus according to the present invention is to operate on the basis of the controlled object to the control input, a control object control means for controlling the control amount of the output of the controlled object, detects the output of the controlled object and a control object output detecting means, and a control object output target value setting means for setting a target value of the control target output value, and a control input calculating means for calculating a control input to the controlled object, reaches the control target output value to the target value and a control object output target response calculation means for specifying calculates a target response in a transient state to the control target output by referring to the deviation between the control target output value and the control target output target response value and calculates a feedback control input a feedback calculating unit, predicts a feedforward control input necessary to achieve the transient characteristics of the target response is computed by the control object output target response calculation means 算するフィードフォワード制御入力予測演算手段とを有する制御装置において、 In the control device having a feed-forward control input prediction calculation means for calculation,
前記制御対象出力目標値設定手段により出力目標値が変更されたとき、変更前の出力目標値と変更後の出力目標値を比較して、出力目標値を大きくするとき、あるいは、小さくするとき、それぞれの場合において、前記制御対象出力目標応答算出手段における出力目標応答値の算出方法を変更し、出力目標値の上昇あるいは下降時において、制御対象出力目標の過渡応答をそれぞれ異なるものとすることを特徴とするものからなる。 When the output target value is changed by the controlled object output target value setting means, when comparing the output target value after the change and the output target value before the change, to increase the output target value, or, when smaller, in each case, to change the method of calculating the output target response value in the control object output target response calculation means, when raised or lowered the output target value, to the transient response of the controlled object output target different from each other consisting of those features.

この制御装置においては、前記フィードフォワード制御入力予測演算手段としては、前記制御対象出力目標値設定手段により出力目標値が変更されたとき、出力目標値の上昇あるいは下降時においてそれぞれ、変更された制御対象出力目標の過渡応答を実現するのに必要なフィードフォワード制御入力予測演算方法を変更するようにすることができる。 In this control unit, as the feed-forward control input prediction calculation means, when the output target value is changed by the controlled object output target value setting means, control respectively, were modified at the time of rising or falling of the output target value it can be made to change the feed-forward control input prediction calculation methods necessary to achieve the transient response of the target output target.

本発明に係る制御装置は、とくに車両用空調装置等における冷凍サイクルの制御に適用して好適なものである。 Control device according to the present invention is suitable with particular application to the control of the refrigeration cycle in an air conditioning system for vehicles and the like. 本発明に係る冷凍サイクル制御装置は、外部からの制御信号により容量を可変可能な外部可変容量圧縮機と、高温高圧の冷媒を凝縮する凝縮器と、冷却器として室内に吹出す空気を冷却する蒸発器を備えた冷凍サイクルであって、蒸発器に空気を送風する送風機、蒸発器の目標温度を設定する蒸発器目標温度設定手段、蒸発器出口空気温度または蒸発器温度を検知する蒸発器温度検知手段、蒸発器温度を制御する蒸発器温度制御手段、蒸発器出口空気温度または蒸発器温度が蒸発器目標温度に到達するための過渡状態における目標応答を算出し指定する蒸発器温度目標応答算出手段、蒸発器温度目標応答値と蒸発器出口空気温度または蒸発器温度との偏差を参照することによりフィードバック制御入力を演算する蒸発器温度フィードバック制 Refrigeration cycle control unit according to the present invention, the cooling and variably external variable capacity compressor the capacity by a control signal from the outside, and a condenser for condensing the high-temperature high-pressure refrigerant, the air blown into the room as a cooler a refrigeration cycle comprising an evaporator, a blower, evaporator target temperature setting means for setting a target temperature of the evaporator for blowing air to the evaporator, the evaporator temperature for detecting the evaporator outlet air temperature or an evaporator temperature detecting means, the evaporator temperature control means for controlling the evaporator temperature, the evaporator temperature target response calculation the evaporator outlet air temperature or the evaporator temperature is specified to calculate a target response in a transient state for reaching the target evaporator temperature means, evaporator temperature target response value and the evaporator evaporator temperature feedback system for calculating a feedback control input by reference to the difference between the outlet air temperature or an evaporator temperature 入力演算手段、蒸発器温度目標応答算出手段により、算出される目標応答における過渡特性を実現するに必要なフィードフォワード制御入力を予測演算する蒸発器温度フィードフォワード制御入力予測演算手段を有する冷凍サイクルの制御装置において、 Input operation means, evaporator by the temperature target response calculation means, the refrigeration cycle having an evaporator temperature feedforward control input prediction calculation means for prediction calculation of the feedforward control input necessary to achieve the transient characteristics of a target response is calculated in the control device,
前記蒸発器目標温度設定手段により蒸発器温度目標値が変更されたとき、変更前の目標値と変更後の目標値を比較して、目標値を高くするとき、あるいは、低くするとき、それぞれの場合において、前記蒸発器温度目標応答算出手段により、異なる過渡応答となるような蒸発器目標応答値を算出することを可能にする目標応答性指定手段を有しており、該手段を介して、目標値の上昇あるいは下降時において、設定された目標値へ到達するまでの過渡応答をそれぞれ異なるものとすることを特徴とするものからなる。 When the evaporator temperature target value is changed by the target evaporator temperature setting means, by comparing the target value after the change to the target value before the change, when increasing the target value, or, when low, respectively in the case, by the evaporator temperature target response calculation means has a target response specification means which make it possible to calculate the evaporator target response value such that different transient response, through the means, during rising or lowering of the target value, consisting of those characterized be different each transient response to reach the set target value.

この冷凍サイクル制御装置においては、前記蒸発器温度フィードフォワード制御入力予測演算手段としては、前記蒸発器目標温度設定手段により蒸発器温度目標値が変更されたとき、目標値の上昇あるいは下降時においてそれぞれ、変更された制御温度目標の過渡応答を実現するのに必要なフィードフォワード制御入力予測演算方法を変更するようにすることができる。 In this refrigeration cycle control unit, as the evaporator temperature feedforward control input prediction calculation means, when the evaporator temperature target value by the target evaporator temperature setting means is changed, respectively, in ascent or descent of the target value , it can be made to change the feed-forward control input prediction calculation methods necessary to achieve the transient response of the control temperature target that was changed.

また、前記目標応答性指定手段が、前記蒸発器温度目標応答算出手段に用いる所定の応答性指定値群における応答性指定値を変更する手段からなり、冷凍サイクル熱負荷に応じて該応答性指定値を変更するようにすることができる。 Further, the target response specification means is comprised of means for changing the responsiveness specified value in a predetermined response specifying value group to be used for the evaporator temperature target response calculation means, the response specified in accordance with the refrigeration cycle heat load it can be made to change the value.

上記冷凍サイクル熱負荷としては、たとえば、外気温度に相関のある物理量、蒸発器への送風量に相関のある物理量、車両の速度に相関のある物理量、車両原動機の回転数に相関のある物理量のすべて、または少なくとも一つを検知したものを使用できる。 As the refrigerating cycle heat load, for example, physical value having a correlation with an outside air temperature, the physical value having a correlation with the air blowing amount to the evaporator, a physical value having a correlation with the speed of the vehicle, of a physical quantity correlated to the speed of the vehicle engine all, or used after detecting at least one.

また、前記蒸発器温度制御手段は、外部からの制御信号により外部可変容量圧縮機の容量制御を行うことにより、蒸発器出口空気温度または蒸発器温度を制御するように構成することができる。 Further, the evaporator temperature control means, by performing the capacity control of the external variable capacity compressor by an external control signal can be configured to control the evaporator outlet air temperature or evaporator temperature.

本発明に係る制御装置によれば、制御対象出力の目標値が大きく、あるいは小さくなるように変更され、制御対象出力が上昇あるいは下降される場合にも、それぞれ任意の応答性を持つことで、所望の最適な応答性にて目標値への制御が可能となる。 According to the control apparatus according to the present invention, the target value of the control target output is large, or is changed to be smaller, when the controlled object output is raised or lowered also by each with any response, it is possible to control to the target value at the desired optimum response. したがって、簡素で安価な制御系でありながら、オーバーシュートや応答遅れなどのない、望ましい制御を実現できる。 Therefore, yet simple and inexpensive control system, without overshooting and response delay, can achieve the desired control.

以下に、本発明の望ましい実施の形態を、図面を参照して説明する。 Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.
図1は、本発明の一実施態様に係る冷凍サイクル制御装置を備えた車両用空調装置の概略機器系統図を示している。 Figure 1 shows a schematic apparatus diagram of a vehicle air conditioning system having a refrigeration cycle control apparatus according to an embodiment of the present invention. 図1において、1は車両用空調装置全体を示しており、車室内へと開口する通風ダクト2内の上流側には、内外気切替ダンパ3によって調節された外気導入口4、内気導入口5からの吸気を圧送する送風機6が設けられている。 In Figure 1, 1 denotes the entire automotive air conditioner, the upstream side in the air duct 2 which opens into the passenger compartment, the outside air inlet 4 is adjusted by outside air switching damper 3, the inside air introduction port 5 blower 6 that pumps are provided an intake from. 送風機6の下流側には、送風される空気を冷却する冷却器としての蒸発器7が設けられており、その下流側には、加熱器8としてのヒータコアが設けられている。 Downstream of the blower 6 is the evaporator 7 is provided as a cooler for cooling the air blown to the downstream side, the heater core as a heater 8 is provided. 加熱器8には、例えば、エンジン冷却水が循環される。 The heater 8, for example, engine cooling water is circulated. 加熱器8の直上流側には、エアミックスダンパアクチュエータ9によって開度が調節されるエアミックスダンパ10が配置されている。 Immediately upstream side of the heater 8, the air mixing damper 10 is disposed to the opening is adjusted by the air mixing damper actuator 9. 温度調節された空気は、ダンパ11、12、13を備えたDEF、VENT、FOOT等の各吹出口14、15、16を通して車室内に吹き出される。 Temperature-controlled air, DEF with the damper 11, 12, 13, VENT, blown into the passenger compartment through the outlets 14, 15 and 16 FOOT like.

上記のような車両用空調装置1に、上記蒸発器7を備えた冷凍サイクル17が設けられている。 The air conditioner 1 as described above, the refrigeration cycle 17 having the above-described evaporator 7 is provided. 冷凍サイクル17は、各機器が冷媒配管を介して接続された冷媒回路に構成されており、外部からの容量制御信号により容量が制御される外部可変容量圧縮機18、圧縮機18で圧縮された高温高圧の冷媒を凝縮する凝縮器19、凝縮された冷媒の気液を分離する受液器20、受液器20からの冷媒を減圧、膨張させる膨張弁21、膨張弁21からの冷媒を蒸発させ通風ダクト2内を送られてくる空気との熱交換により該空気を冷却する蒸発器7がこの順に配置されており、蒸発器7からの冷媒が圧縮機18に吸入されて再び圧縮される。 Refrigeration cycle 17, each device is configured in a refrigerant circuit connected via a refrigerant pipe, an external variable displacement compressor 18 which capacity is controlled by a displacement control signal from the outside, it is compressed by the compressor 18 condenser 19 for condensing the high-temperature high-pressure refrigerant, receiver 20 for separating gas and liquid of the refrigerant condensed, decompressing the refrigerant from the receiver 20, the expansion valve 21 for expanding, evaporating the refrigerant from the expansion valve 21 It is allowed and the evaporator 7 for cooling the air are disposed in this order by heat exchange with the air sent the ventilation duct 2, is again compressed refrigerant from the evaporator 7 is sucked into the compressor 18 . 圧縮機18は、本実施態様では、車両駆動用のエンジン22によってクラッチを介して駆動されるようになっている。 Compressor 18, in this embodiment, is driven through a clutch by an engine 22 for driving a vehicle. このクラッチのオンオフ制御は、クラッチコントローラ30を介して行われ、本実施態様では、メインコントローラ23からのクラッチ制御信号回路に圧力スイッチ31が設けられている。 Off control of the clutch is carried out via a clutch controller 30, in this embodiment, the pressure switch 31 is provided in the clutch control signal circuit from a main controller 23.

23は本発明に係る冷凍サイクル制御装置が組み込まれた、空調制御用のメインコントローラを示している。 23 refrigeration cycle control unit according to the present invention is incorporated shows a main controller of the air-conditioning control. 上記圧縮機18は、その容量制御方式は、従来の圧縮機吸入圧力制御とは異なり、圧縮機18の吐出圧力と吸入圧力との差圧制御方式の容量制御であり、外部からの容量制御信号は、その差圧に相関がある入力信号としてメインコントローラ23から与えられるものである。 The compressor 18, the capacity control scheme is different from a conventional compressor suction pressure control, a capacity control of the differential pressure control method of the discharge pressure of the compressor 18 and the suction pressure, the displacement control signal from the outside are those provided from the main controller 23 as an input signal is correlated to the pressure difference. 冷却器としての蒸発器7の出口空気温度の制御は、この容量制御信号にて行われる。 Control of the outlet air temperature of the evaporator 7 as a cooler is performed by the capacitor control signal. さらに、圧縮機の駆動源からの駆動力の接続/遮断を行うクラッチを有し、クラッチの接続/遮断をコントロールするクラッチ信号をメインコントローラ23から与えるものである。 Furthermore, those that provide a clutch for connecting / interrupting the driving force from the driving source of the compressor, a clutch signal for controlling the connection / cutoff of the clutch from the main controller 23. 本実施例の構成では、クラッチを有するシステムであるが、クラッチを有さなくとも本制御は適応できるものである。 In the configuration of this embodiment, a system having a clutch, the control without have the clutch is adaptable.

また、本実施態様では、蒸発器7の下流側に、蒸発器出口空気温度センサ24が設けられており、検知された蒸発器出口空気温度Tevaの信号がメインコントローラ23に送られる。 Further, in the present embodiment, the downstream side of the evaporator 7, the evaporator and the outlet air temperature sensor 24 is provided, the signal of the detected evaporator exit air temperature Teva is sent to main controller 23. また、車室内温度センサ25から車室内温度Tin の検知信号が、外気温度センサ26から外気温度Tambの検知信号が、必要に応じて日射センサ27から日射量の検知信号が、さらにエンジン回転数Ne(または圧縮機回転数)の信号28が、送風機6駆動用モータ29の電圧(ブロワ電圧)の信号BLV が、それぞれメインコントローラ23に送られ、メインコントローラ23からは、エアミックスダンパ10の開度制御信号がエアミックスダンパアクチュエータ9に送られ、クラッチ制御信号がクラッチコントローラ30に送られる。 Further, the detection signal of the vehicle interior temperature Tin from vehicle interior temperature sensor 25, the detection signal of the outside air temperature Tamb from outside air temperature sensor 26, the solar radiation amount detection signal from the solar radiation sensor 27 as needed, further engine speed Ne (or compressor speed) of the signal 28, signal BLV of a voltage of the blower 6 for driving motor 29 (blower voltage), respectively fed to the main controller 23, from the main controller 23, the opening degree of the air mixing damper 10 control signal is sent to air mixing damper actuator 9, the clutch control signal is sent to the clutch controller 30.

メインコントローラ23において、本実施態様では図2、図3に示すような制御が行われる。 In the main controller 23, in the present embodiment 2, control as shown in FIG. 3 are performed. 本実施態様では、制御対象出力としての蒸発器出口空気温度が、以下のように制御される。 In the present embodiment, the evaporator outlet air temperature as a control target output is controlled as follows. なお、以下の説明、図2のブロック図、図3のフロー図においては、「蒸発器」を「エバ」(エバポレータの略)と略記してある。 In the following description, the block diagram of FIG. 2, the flow diagram of Figure 3, are abbreviated as "evaporator" and "Eve" (abbreviation of the evaporator).

(1)エバ出口空気温度目標応答指定手段 外気温度(Tamb)と、エンジン回転数(Ne)と、車速(VS)と、ブロワ電圧(BLV)を参照して、下記演算式によりエバ出口空気温度目標応答性を指定する変数A及びBを決定する。 (1) and the evaporator outlet air temperature target response specification means the outside air temperature (Tamb), engine speed and (Ne), and vehicle speed (VS), with reference to the blower voltage (BLV), evaporator outlet air temperature by the following arithmetic expression determining the variables a and B specifying the target response. 但し、変数Aは、エバ出口空気温度上昇時(Toff>Toffn)とし、変数Bは、エバ出口空気温度下降時(Toff<Toffn)とする。 However, variable A, when the evaporator outlet air temperature rises and (Toff> Toffn), the variable B is at the time of evaporator outlet air temperature decrease (Toff <Toffn). ここで、Toffnは、エバ出口空気温度目標値の前回値であり、Toffは今回の目標値である。 Here, Toffn is the previous value of the evaporator outlet air temperature target value, Toff is the current target value.
・エバ出口空気温度目標値上昇時(Toff>Toffn) - Eva outlet air temperature target value during the rise (Toff> Toffn)
A=f(Tamb,Ne,VS,BLV) A = f (Tamb, Ne, VS, BLV)
・エバ出口空気温度目標値下降時(Toff<Toffn) - Eva outlet when the air temperature target value down (Toff <Toffn)
B=f(Tamb,Ne,VS,BLV) B = f (Tamb, Ne, VS, BLV)

(2)エバ出口空気温度フィードフォワード制御入力予測手段 エバ出口空気温度フィードフォワード目標値(Toffc)と、外気温度(Tamb)と、エンジン回転数(Ne)と、車速(VS)と、ブロワ電圧(BLV)を参照して、下記演算式により、エバ出口空気温度フィードフォワード制御入力(Icff)を予測する。 (2) evaporator outlet air temperature feedforward control input prediction unit evaporator outlet air temperature feedforward target value (Toffc), the outside air temperature (Tamb), engine speed and (Ne), and vehicle speed (VS), blower voltage ( BLV) see, by the following operation expression, to predict the evaporator outlet air temperature feedforward control input (ICFF).
Icff=f(Toffc,Tamb,Ne,VS,BLV) Icff = f (Toffc, Tamb, Ne, VS, BLV)
但し、エバ出口空気温度フィードフォワード目標値(Toffc)は、エバ出口空気温度目標値(Toff)、応答性指定変数(A,B)を参照して、下記演算式により、算出されるものとする。 However, Eva outlet air temperature feedforward target value (Toffc) are evaporator outlet air temperature target value (Toff), with reference to the response specified variable (A, B), by the following operation expression, shall be calculated .
Toffc=(TL1×Toff+Tff×Toffc(前回値))/(Tff+TL1) Toffc = (TL1 × Toff + Tff × Toffc (previous value)) / (Tff + TL1)
ここで、TL1 は、制御周期である。 Here, TL1 is a control period. また、エバ出口空気温度フィードフォワード指定値(Tff)は、エバ出口空気温度目標値(Toff)により、下記条件で異なる値となる。 Further, evaporator outlet air temperature feedforward specified value (Tff) is the evaporator outlet air temperature target value (Toff), different values ​​under the following conditions.
・エバ出口空気温度目標値上昇時(Toff>Toffn) - Eva outlet air temperature target value during the rise (Toff> Toffn)
Tff=A×C Tff = A × C
・エバ出口空気温度目標値下降時(Toff<Toffn) - Eva outlet when the air temperature target value down (Toff <Toffn)
Tff=B×C Tff = B × C
但し、Cはあらかじめ定めた定数とする。 However, C is a predetermined constant.

(3)エバ出口空気温度応答目標値制御手段 エバ出口空気温度応答目標値(Tef)は、エバ出口空気温度目標値を参照して、下記演算式により、算出されるものとする。 (3) evaporator outlet air temperature response target value control unit evaporator outlet air temperature response target value (Tef) refers to the evaporator outlet air temperature target value, by the following operation expression, it shall be calculated.
Tef=(TL2×Toff+Tc×Tef(前回値))/(Tc+TL2) Tef = (TL2 × Toff + Tc × Tef (previous value)) / (Tc + TL2)
TL2:制御周期 TL2: control period
Tc:エバ出口空気温度応答性指定値但し、エバ出口空気温度応答性指定値(Tc)は、エバ出口空気温度目標値(Toff)により、下記条件で異なる値となる。 Tc: evaporator outlet air temperature responsive specified value, however, the evaporator outlet air temperature responsive specified value (Tc) is the evaporator outlet air temperature target value (Toff), different values ​​under the following conditions.
・エバ出口空気温度目標値上昇時(Toff>Toffn) - Eva outlet air temperature target value during the rise (Toff> Toffn)
Tc=A Tc = A
・エバ出口空気温度目標値下降時(Toff<Toffn) - Eva outlet when the air temperature target value down (Toff <Toffn)
Tc=B Tc = B

(4)エバ出口空気温度フィードバック制御入力演算手段 エバ出口空気温度フィードバック制御入力値(Icfb)は、エバ出口空気温度応答目標値(Tef)と、エバ出口空気温度(Teva)を参照して、下記のような比例、積分演算を行うものとする。 (4) evaporator outlet air temperature feedback control input calculation means evaporator outlet air temperature feedback control input value (icfb) are evaporator outlet air temperature response target value (Tef), with reference to evaporator outlet air temperature (Teva), following proportional like, it is assumed that the integration operation.
Icfb=P(比例演算値)+I(積分演算値) Icfb = P (proportional calculation value) + I (integral calculation value)
P=Kp×(Tef−Teva) P = Kp × (Tef-Teva)
I=In n-1 ×Kp/Ki ×(Tef−Teva) I = In n-1 × Kp / Ki × (Tef-Teva)
Kp:比例ゲイン Kp: proportional gain
Ki:積分時間 Ki: integral time
In n-1 :I の前回演算値 In n-1: previous calculated value of I

(5)エバ出口空気温度制御手段 圧縮機容量制御信号(SIGte)は、下記演算式により、エバ出口空気温度フィードフォワード制御入力値(Icff)と、エバ出口フィードバック制御入力値(Icfb)の合算したものとする。 (5) evaporator outlet air temperature control means compressor capacity control signal (SIGte) is by the following arithmetic expression, evaporator outlet air temperature feedforward control input value (ICFF), the sum of the evaporator outlet feedback control input value (icfb) and things.
SIGte=Icff+Icfb SIGte = Icff + Icfb
但し、クラッチを含む場合については、SIGteを参照して、クラッチをコントロールする。 However, the case including clutch, with reference to the SIGte, to control the clutch.

上記のような制御手段により、冷凍サイクルにおける圧縮機の吐出容量が制御され、エバ出口空気温度が次のように制御される。 By the control means as described above, displacement of the compressor is controlled in the refrigeration cycle, the evaporator outlet air temperature is controlled in the following manner. つまり、上述した制御演算値をもとに、圧縮機吐出容量が以下のように制御される。 That is, based on the control operation value described above, the compressor discharge capacity is controlled as follows.

まず、ステップ1として、各必要データが読み込まれ、エバ出口空気温度目標値の上昇時、下降時に応じて、エバ出口空気温度目標応答指定手段により変数A、Bが算出される。 First, in step 1, the required data is read, at elevated evaporator outlet air temperature target value, depending on the time of descent, variables A, B is calculated by evaporator outlet air temperature target response specification means.

次に、ステップ2として、エバ出口空気温度フィードフォワード制御入力予測手段によりエバ出口フィードフォワード制御入力(Icff)が算出される。 Next, in step 2, evaporator outlet feedforward control input (ICFF) is calculated by the evaporator outlet air temperature feedforward control input prediction unit.

そして、ステップ3として、エバ出口空気温度応答目標値制御手段によりエバ出口空気温度応答目標値(Tef)が算出される。 Then, as step 3, evaporator outlet air temperature response target value (Tef) is calculated by the evaporator outlet air temperature response target value control means.

次に、ステップ4として、エバ出口空気温度フィードバック制御入力演算手段によりエバ出口フィードバック制御入力(Icfb)が算出される。 Next, in step 4, evaporator outlet feedback control input (icfb) is calculated by the evaporator outlet air temperature feedback control input calculation means.

そして、ステップ5として、エバ出口空気温度制御手段により、エバ出口フィードフォワード制御入力(Icff)と、エバ出口フィードバック制御入力(Icfb)を合算して、圧縮機容量制御信号(SIGte)を算出し、容量制御コントローラへの入力とする。 Then, in step 5, the evaporator outlet air temperature control means, calculates an evaporator outlet feedforward control input (ICFF), by summing the evaporator outlet feedback control input (icfb), the compressor capacity control signal (SIGte), and input to the capacity control controller.

このように、簡素な制御系でありながら、制御対象出力(本実施態様ではエバ出口空気温度である。)の上昇、あるいは下降時において、それぞれ任意の異なる応答性を持つことで、オーバーシュートや、応答遅れなどがなく、所望の応答性で目標値への制御が可能となる。 While this manner, a simple control system, (in this embodiment is the evaporator outlet air temperature.) The controlled object output increase in, or at the time of falling, by having any different response respectively, Ya overshoot , no such response delay, it is possible to control to the target value with a desired response.

本発明に係る制御装置は、制御対象出力目標応答算出手段と、制御対象出力フィードバック演算手段と、フィードフォワード制御入力予測演算手段とを有するあらゆる制御装置に適用可能であり、とくに、車両用空調装置における、外部制御信号による容量可変圧縮機を有する冷凍サイクルの制御装置に適用して好適なものである。 Control device according to the present invention, a control target output target response calculation means, and a control object output feedback computing means, is applicable to any controller having a feed-forward control input prediction calculating means, in particular, the vehicle air conditioner in, it is suitably applied to a control apparatus for a refrigeration cycle having a variable displacement compressor according to an external control signal.

本発明の一実施態様に係る冷凍サイクル制御装置を備えた車両用空調装置の概略機器系統図である。 It is a schematic apparatus diagram of a vehicle air conditioning system having a refrigeration cycle control apparatus according to an embodiment of the present invention. 図1の装置の制御ブロック図である。 It is a control block diagram of the apparatus of FIG. 図1の装置の制御フロー図である。 It is a control flow diagram of the apparatus of Figure 1.

符号の説明 DESCRIPTION OF SYMBOLS

1 車両用空調装置 2 通風ダクト 3 内外気切替ダンパ 4 外気導入口 5 内気導入口 6 送風機 7 蒸発器 8 加熱器 9 エアミックスダンパアクチュエータ 10 エアミックスダンパ 11、12、13 ダンパ 14、15、16 吹き出し口 17 冷凍サイクル 18 外部可変容量圧縮機 19 凝縮器 20 受液器 21 膨張弁 22 エンジン 23 メインコントローラ 24 蒸発器出口空気温度センサ 25 車室内温度センサ 26 外気温度センサ 27 日射センサ 28 エンジン回転数信号 29 送風機用モータ 30 クラッチコントローラ 31 圧力スイッチ Callout 1 automotive air conditioner 2 ventilating duct 3 inside and outside air switching damper 4 outside air inlet 5 inside air introduction port 6 blower 7 evaporator 8 heater 9 air mix damper actuator 10 air mix damper 11, 12, 13 damper 14, 15, 16 mouth 17 refrigeration cycle 18 outside the variable displacement compressor 19 condenser 20 receiver 21 expansion valve 22 engine 23 main controller 24 evaporator exit air temperature sensor 25 vehicle interior temperature sensor 26 outside air temperature sensor 27 solar sensor 28 engine speed signal 29 motor blower 30 clutch controller 31 pressure switch

Claims (7)

  1. 制御対象を制御入力に基づき操作し、制御対象の出力としての制御量を制御する制御対象制御手段と、制御対象の出力を検知する制御対象出力検知手段と、制御対象出力値の目標値を設定する制御対象出力目標値設定手段と、制御対象への制御入力を演算する制御入力演算手段と、制御対象出力値が目標値に到達するための過渡状態における目標応答を算出し指定する制御対象出力目標応答算出手段と、制御対象出力目標応答値と制御対象出力値との偏差を参照することによりフィードバック制御入力を演算する制御対象出力フィードバック演算手段と、制御対象出力目標応答算出手段により演算される目標応答における過渡特性を実現するに必要なフィードフォワード制御入力を予測演算するフィードフォワード制御入力予測演算手段とを Operate on the basis of the controlled object to the control input, set the control target control means for controlling the control amount of the output of the controlled object, a control object output detecting means for detecting the output of the controlled object, a target value of the control target output value and a control object output target value setting means for the control input calculating means for calculating a control input to the controlled object, the controlled object output control target output value specifies calculates a target response in a transient state for reaching the target value is calculated and a control object output feedback calculation means for calculating a feedback control input, the controlled object output target response calculation means by referring the target response calculation means, a deviation between the control target output value and the control target output target response value and a feedforward control input prediction calculation means for prediction calculation of the feedforward control input necessary to achieve the transient characteristics of target response する制御装置において、 A control device for,
    前記制御対象出力目標値設定手段により出力目標値が変更されたとき、変更前の出力目標値と変更後の出力目標値を比較して、出力目標値を大きくするとき、あるいは、小さくするとき、それぞれの場合において、前記制御対象出力目標応答算出手段における出力目標応答値の算出方法を変更し、出力目標値の上昇あるいは下降時において、制御対象出力目標の過渡応答をそれぞれ異なるものとすることを特徴とする制御装置。 When the output target value is changed by the controlled object output target value setting means, when comparing the output target value after the change and the output target value before the change, to increase the output target value, or, when smaller, in each case, to change the method of calculating the output target response value in the control object output target response calculation means, when raised or lowered the output target value, to the transient response of the controlled object output target different from each other control device according to claim.
  2. 前記フィードフォワード制御入力予測演算手段は、前記制御対象出力目標値設定手段により出力目標値が変更されたとき、出力目標値の上昇あるいは下降時においてそれぞれ、変更された制御対象出力目標の過渡応答を実現するのに必要なフィードフォワード制御入力予測演算方法を変更する、請求項1の制御装置。 The feedforward control input prediction calculating means, when the output target value is changed by the controlled object output target value setting means, respectively during the rising or falling of the output target value, the transient response of the controlled object output target that have changed changing the feedforward control input prediction calculation methods necessary to implement the control apparatus according to claim 1.
  3. 外部からの制御信号により容量を可変可能な外部可変容量圧縮機と、高温高圧の冷媒を凝縮する凝縮器と、冷却器として室内に吹出す空気を冷却する蒸発器を備えた冷凍サイクルであって、蒸発器に空気を送風する送風機、蒸発器の目標温度を設定する蒸発器目標温度設定手段、蒸発器出口空気温度または蒸発器温度を検知する蒸発器温度検知手段、蒸発器温度を制御する蒸発器温度制御手段、蒸発器出口空気温度または蒸発器温度が蒸発器目標温度に到達するための過渡状態における目標応答を算出し指定する蒸発器温度目標応答算出手段、蒸発器温度目標応答値と蒸発器出口空気温度または蒸発器温度との偏差を参照することによりフィードバック制御入力を演算する蒸発器温度フィードバック制御入力演算手段、蒸発器温度目標応答算 And the capacitance by an external control signal capable of changing external variable capacity compressor, a condenser for condensing the high-temperature high-pressure refrigerant, a refrigeration cycle having an evaporator for cooling air blown into the room as a cooler , blower for sending air to the evaporator, the evaporator target temperature setting means for setting a target temperature of the evaporator, the evaporator temperature detecting means for detecting the evaporator outlet air temperature or the evaporator temperature, evaporation of controlling the evaporator temperature vessel temperature control means, the evaporator outlet air temperature or the evaporator temperature target response calculation means for the evaporator temperature is specified to calculate a target response in a transient state for reaching the target evaporator temperature, evaporated and the evaporator temperature target response value evaporator temperature feedback control input calculation means for calculating a feedback control input by reference to the deviation between the vessel outlet air temperature or the evaporator temperature, the evaporator temperature target response calculation 手段により、算出される目標応答における過渡特性を実現するに必要なフィードフォワード制御入力を予測演算する蒸発器温度フィードフォワード制御入力予測演算手段を有する冷凍サイクルの制御装置において、 By means, in the control device of the refrigerating cycle having an evaporator temperature feedforward control input prediction calculation means for prediction calculation of the feedforward control input necessary to achieve the transient characteristics of a target response is calculated,
    前記蒸発器目標温度設定手段により蒸発器温度目標値が変更されたとき、変更前の目標値と変更後の目標値を比較して、目標値を高くするとき、あるいは、低くするとき、それぞれの場合において、前記蒸発器温度目標応答算出手段により、異なる過渡応答となるような蒸発器目標応答値を算出することを可能にする目標応答性指定手段を有しており、該手段を介して、目標値の上昇あるいは下降時において、設定された目標値へ到達するまでの過渡応答をそれぞれ異なるものとすることを特徴とする冷凍サイクル制御装置。 When the evaporator temperature target value is changed by the target evaporator temperature setting means, by comparing the target value after the change to the target value before the change, when increasing the target value, or, when low, respectively in the case, by the evaporator temperature target response calculation means has a target response specification means which make it possible to calculate the evaporator target response value such that different transient response, through the means, during rising or lowering of the target value, the refrigeration cycle control unit according to claim be different each transient response to reach the set target value.
  4. 前記蒸発器温度フィードフォワード制御入力予測演算手段は、前記蒸発器目標温度設定手段により蒸発器温度目標値が変更されたとき、目標値の上昇あるいは下降時においてそれぞれ、変更された制御温度目標の過渡応答を実現するのに必要なフィードフォワード制御入力予測演算方法を変更する、請求項3の冷凍サイクル制御装置。 The evaporator temperature feedforward control input prediction calculating means, when said target evaporator temperature by the evaporator target temperature setting means is changed, respectively, in ascent or descent of the target value, the modified transient control target temperature changing the feedforward control input prediction calculation methods necessary to achieve a response, the refrigeration cycle control apparatus according to claim 3.
  5. 前記目標応答性指定手段は、前記蒸発器温度目標応答算出手段に用いる所定の応答性指定値群における応答性指定値を変更する手段からなり、冷凍サイクル熱負荷に応じて該応答性指定値を変更する、請求項3または4の冷凍サイクル制御装置。 The target response specifying means comprises means for changing the responsiveness specified value in a predetermined response specifying value group to be used for the evaporator temperature target response calculation means, the response specified value in response to the refrigeration cycle heat load change, the refrigeration cycle control apparatus according to claim 3 or 4.
  6. 前記冷凍サイクル熱負荷は、外気温度に相関のある物理量、蒸発器への送風量に相関のある物理量、車両の速度に相関のある物理量、車両原動機の回転数に相関のある物理量のすべて、または少なくとも一つを検知したものからなる、請求項5の冷凍サイクル制御装置。 The refrigeration cycle heat load, physical value having a correlation with an outside air temperature, the physical value having a correlation with the air blowing amount to the evaporator, a physical value having a correlation with the speed of the vehicle, or all, of the physical quantity correlated to the speed of the vehicle engine consisting of those obtained by detecting at least one refrigeration cycle control unit according to claim 5.
  7. 前記蒸発器温度制御手段は、外部からの制御信号により外部可変容量圧縮機の容量制御を行うことにより、蒸発器出口空気温度または蒸発器温度を制御する、請求項3の冷凍サイクル制御装置。 The evaporator temperature control means, by performing the capacity control of the external variable capacity compressor by an external control signal, for controlling the evaporator outlet air temperature or the evaporator temperature, the refrigeration cycle control apparatus according to claim 3.
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