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公开(公告)号：US07836716B2
公开(公告)日：2010-11-23
申请号：US11581441
申请日：2006-10-17
CPC分类号： B60H1/3208 , B60H2001/3261 , B60H2001/3266 , B60H2001/3275
摘要： A refrigerant cycle device includes a compressor driven by a vehicle engine for drawing and compressing gas refrigerant from an evaporator, a variable displacement mechanism which varies a discharge capacity of the compressor based on a control value from an exterior to approach a suction pressure of the compressor to a predetermined suction pressure, and a control unit for controlling the discharge capacity of the compressor. The control unit includes a determining part for determining an accelerating state of the vehicle engine, a detecting member which detects a thermal load of the evaporator, a setting part for setting a minimum control value in accordance with the thermal load, and a controlling part. The controlling part reduces the control value to the minimum control value and returns the reduced control value to a control value before the reducing, when the determining means determines an accelerating state of the vehicle engine.
摘要翻译： 一种制冷剂循环装置，包括：由车辆用发动机驱动的压缩机，用于从蒸发器抽取和压缩气体制冷剂;可变排量机构，其根据外部的控制值改变压缩机的排出容量，以接近压缩机的吸入压力 到预定的吸入压力，以及用于控制压缩机的排放能力的控制单元。 控制单元包括用于确定车辆发动机的加速状态的确定部件，检测蒸发器的热负荷的检测部件，用于根据热负荷设定最小控制值的设定部件和控制部件。 当确定装置确定车辆发动机的加速状态时，控制部分将控制值减小到最小控制值，并将减小的控制值返回到减小之前的控制值。
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公开(公告)号：US20070101736A1
公开(公告)日：2007-05-10
申请号：US11581441
申请日：2006-10-17
CPC分类号： B60H1/3208 , B60H2001/3261 , B60H2001/3266 , B60H2001/3275
摘要： A refrigerant cycle device includes a compressor driven by a vehicle engine for drawing and compressing gas refrigerant from an evaporator, a variable displacement mechanism which varies a discharge capacity of the compressor based on a control value from an exterior to approach a suction pressure of the compressor to a predetermined suction pressure, and a control unit for controlling the discharge capacity of the compressor. The control unit includes a determining part for determining an accelerating state of the vehicle engine, a detecting member which detects a thermal load of the evaporator, a setting part for setting a minimum control value in accordance with the thermal load, and a controlling part. The controlling part reduces the control value to the minimum control value and returns the reduced control value to a control value before the reducing, when the determining means determines an accelerating state of the vehicle engine.
摘要翻译： 一种制冷剂循环装置，包括：由车辆用发动机驱动的压缩机，用于从蒸发器抽取和压缩气体制冷剂;可变排量机构，其根据外部的控制值改变压缩机的排出容量，以接近压缩机的吸入压力 到预定的吸入压力，以及用于控制压缩机的排放能力的控制单元。 控制单元包括用于确定车辆发动机的加速状态的确定部件，检测蒸发器的热负荷的检测部件，用于根据热负荷设定最小控制值的设定部件和控制部件。 当确定装置确定车辆发动机的加速状态时，控制部分将控制值减小到最小控制值，并将减小的控制值返回到减小之前的控制值。
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公开(公告)号：US08434315B2
公开(公告)日：2013-05-07
申请号：US12153574
申请日：2008-05-21
IPC分类号： G01K13/00
CPC分类号： B60H1/3208 , B60H2001/3266
摘要： A compressor drive torque estimating device to be adapted for a system provided with a refrigeration cycle in which a refrigerant is circulated by a compressor driven by a drive source mounted in a vehicle, comprising heat load detecting means for detecting a heat load of the refrigeration cycle, a storage unit storing a plurality of estimated drive torque characteristics establishing correlation between a drive torque change characteristic of the compressor and an elapsed time from a time of start of operation of the compressor, an estimated drive torque characteristic selecting means for selecting the one of the plurality of estimated drive torque characteristics stored in the storage unit based on detected values detected by the heat load detecting means, and an estimated drive torque calculating means for calculating an estimated drive torque of the compressor based on the estimated drive torque characteristic selected by the estimated drive torque characteristic selecting means.
摘要翻译： 一种压缩机驱动转矩估计装置，其适用于具有制冷循环的系统，其中制冷剂由安装在车辆中的驱动源驱动的压缩机循环，包括用于检测制冷循环的热负荷的热负荷检测装置 存储单元，其存储建立压缩机的驱动转矩变化特性与从压缩机的运转开始时起的经过时间之间的相关关系的多个估计驱动转矩特性;估计驱动转矩特性选择装置，用于选择 基于由热负荷检测装置检测到的检测值存储在存储单元中的多个估计驱动转矩特性，以及估计驱动转矩计算装置，用于根据由该负载检测装置选择的估计的驱动转矩特性来计算压缩机的估计驱动转矩 估计驱动转矩特性选择装置。
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公开(公告)号：US07676331B2
公开(公告)日：2010-03-09
申请号：US12153280
申请日：2008-05-15
IPC分类号： G01L3/00
CPC分类号： F04B35/002 , F04B2201/1202 , F04B2205/09
摘要： A compressor drive torque estimating device suppresses a discrepancy between an estimated drive torque, which is based on a torque estimating device of a compressor, and an actual drive torque of the compressor. The discrepancy is due to delay in switching between employment of the torque estimating device and the actual drive torque of the compressor in judging the compressor torque. Thus, even in a transitional state immediately after the start of compression, the idling speed of an engine driving the compressor is controlled based on an accurate estimate of the compressor torque, to improve the stability of the engine idle speed.
摘要翻译： 压缩机驱动转矩估计装置抑制基于压缩机的转矩估计装置的估计驱动转矩与压缩机的实际驱动转矩之间的差异。 该差异是由于在判断压缩机转矩时在扭矩估计装置的使用与压缩机的实际驱动转矩之间的切换延迟。 因此，即使在压缩开始之后的过渡状态下，也可以基于压缩机转矩的精确估计来控制驱动压缩机的发动机的空转速度，以提高发动机怠速的稳定性。
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5.发明授权Compressor inlet pressure estimation apparatus for refrigeration cycle system 有权用于制冷循环系统的压缩机入口压力估计装置公开(公告)号：US08434316B2
公开(公告)日：2013-05-07
申请号：US12153709
申请日：2008-05-22
IPC分类号： G01K13/00
CPC分类号： F25B49/02 , B60H1/3205 , B60H2001/3263 , B60H2001/327 , F25B2500/19 , F25B2700/1931 , F25B2700/2104 , F25B2700/2117
摘要： A compressor inlet pressure estimation apparatus for a refrigeration cycle system is disclosed. An electronic control unit 14 answers YES by judging that the command to start a compressor 2 is issued when an air-conditioning switch is turned on in step S100. After that, the electronic control unit 14 answers NO in the case where a timer count time Tc is shorter than a predetermined time T1 in step S120. At the same time, Tefin_C is set to 15° C. in step S130. The lower one of Tefin_C and Tefin determined in this way is determined as Tefin_d (step S150). After that, Tefin_d is input to the first-order lag function to acquire Tefin_AD(N). Then, the control proceeds to step S170, where the estimated value Ps_es(N) of the refrigerant inlet pressure of the compressor 2 is determined using Tefin_AD(N) and Gr.
摘要翻译： 公开了一种用于制冷循环系统的压缩机入口压力估计装置。 当在步骤S100中开启空调开关时，电子控制单元14通过判断是否发出启动压缩机2的命令来回答“是”。 之后，在步骤S120中，在定时器计数时间Tc比预定时间T1短的情况下，电子控制单元14回答为“否”。 同时，在步骤S130中将Tefin_C设定为15℃。 以这种方式确定的Tefin_C和Tefin中较低的一个被确定为Tefin_d（步骤S150）。 之后，Tefin_d被输入到一阶滞后函数中以获取Tefin_AD（N）。 然后，控制进行到步骤S170，其中使用Tefin_AD（N）和Gr来确定压缩机2的制冷剂入口压力的估计值Ps_es（N）。
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公开(公告)号：US20080292470A1
公开(公告)日：2008-11-27
申请号：US12153574
申请日：2008-05-21
IPC分类号： F04B49/00
CPC分类号： B60H1/3208 , B60H2001/3266
摘要： A compressor drive torque estimating device to be adapted for a system provided with a refrigeration cycle in which a refrigerant is circulated by a compressor driven by a drive source mounted in a vehicle, comprising heat load detecting means for detecting a heat load of the refrigeration cycle, a storage unit storing a plurality of estimated drive torque characteristics establishing correlation between a drive torque change characteristic of the compressor and an elapsed time from a time of start of operation of the compressor, an estimated drive torque characteristic selecting means for selecting the one of the plurality of estimated drive torque characteristics stored in the storage unit based on detected values detected by the heat load detecting means, and an estimated drive torque calculating means for calculating an estimated drive torque of the compressor based on the estimated drive torque characteristic selected by the estimated drive torque characteristic selecting means.
摘要翻译： 一种压缩机驱动转矩估计装置，其适用于具有制冷循环的系统，其中制冷剂由安装在车辆中的驱动源驱动的压缩机循环，包括用于检测制冷循环的热负荷的热负荷检测装置 存储单元，其存储建立压缩机的驱动转矩变化特性与从压缩机的运转开始时起的经过时间之间的相关关系的多个估计驱动转矩特性;估计驱动转矩特性选择装置，用于选择 基于由热负荷检测装置检测到的检测值存储在存储单元中的多个估计驱动转矩特性，以及估计驱动转矩计算装置，用于根据由该负载检测装置选择的估计的驱动转矩特性来计算压缩机的估计驱动转矩 估计驱动转矩特性选择装置。
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公开(公告)号：US08375736B2
公开(公告)日：2013-02-19
申请号：US12428113
申请日：2009-04-22
IPC分类号： F25B27/00
CPC分类号： B60H1/3208 , B60H2001/3242 , B60H2001/3248 , B60H2001/325 , B60H2001/3263 , B60H2001/327 , B60H2001/3273 , F25B49/005 , F25B2400/076 , F25B2500/19 , F25B2500/26 , F25B2700/1331 , F25B2700/195 , F25B2700/197 , F25B2700/2117
摘要： A refrigeration cycle apparatus includes a compressor, a condenser, a pressure-reducing mechanism, an evaporator, an orifice provided in a refrigerant flow path from the compressor to the pressure-reducing mechanism, a differential pressure sensor that detects the differential pressure before and after the orifice, a refrigerant flowrate calculating portion that calculates a refrigerant flowrate based on the differential pressure, and a torque estimating portion that estimates the torque required to drive the compressor based on the refrigerant flowrate calculated by the refrigerant flowrate calculating portion, the intake pressure of the compressor, and the discharge pressure of the compressor.
摘要翻译： 一种制冷循环装置，包括压缩机，冷凝器，减压机构，蒸发器，设置在从压缩机到减压机构的制冷剂流路中的小孔，差压传感器，其检测前后的压差 孔口，基于差压计算制冷剂流量的制冷剂流量计算部，以及基于由制冷剂流量计算部计算出的制冷剂流量来推定驱动压缩机所需的转矩的转矩估计部， 压缩机和压缩机的排出压力。
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公开(公告)号：US08082745B2
公开(公告)日：2011-12-27
申请号：US12153711
申请日：2008-05-22
CPC分类号： F25B49/027 , F25B43/02 , F25B2700/13 , F25B2700/21152
摘要： A refrigeration cycle system is disclosed. A compression unit 11 for compressing the refrigerant by the drive force of a vehicle engine 4 is arranged in a housing 10 of a compressor 1. The flow rate of the refrigerant discharged from the compression unit 11 is detected by a flow rate sensor 15 including a throttle portion 15b and a pressure difference detection mechanism 15a. The throttle portion 15b reduces the flow rate of the refrigerant discharged from the compression unit 11. The pressure difference detection mechanism 15a detects the pressure difference between the upstream side and the downstream side of the throttle portion 15b in the refrigerant flow thereby to detect the flow rate of the refrigerant discharged from the compression unit 11. An oil separator 12 for separating the lubricating oil from the refrigerant discharged from the compression unit 11 is interposed between the compression unit 11 and the flow rate sensor 15.
摘要翻译： 公开了一种制冷循环系统。 在压缩机1的壳体10内配置用于通过车辆发动机4的驱动力压缩制冷剂的压缩单元11.从压缩单元11排出的制冷剂的流量由包括 节流部15b和压力差检测机构15a。 节流部15b减少从压缩单元11排出的制冷剂的流量。压力差检测机构15a检测制冷剂流中节流部15b的上游侧和下游侧的压力差，从而检测流量 从压缩单元11排出的制冷剂的速度。用于将润滑油与从压缩单元11排出的制冷剂分离的油分离器12介于压缩单元11和流量传感器15之间。
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9.发明申请Compressor inlet pressure estimation apparatus for refrigeration cycle system 有权用于制冷循环系统的压缩机入口压力估计装置公开(公告)号：US20080295530A1
公开(公告)日：2008-12-04
申请号：US12153709
申请日：2008-05-22
IPC分类号： G01K13/00
CPC分类号： F25B49/02 , B60H1/3205 , B60H2001/3263 , B60H2001/327 , F25B2500/19 , F25B2700/1931 , F25B2700/2104 , F25B2700/2117
摘要： A compressor inlet pressure estimation apparatus for a refrigeration cycle system is disclosed. An electronic control unit 14 answers YES by judging that the command to start a compressor 2 is issued when an air-conditioning switch is turned on in step S100. After that, the electronic control unit 14 answers NO in the case where a timer count time Tc is shorter than a predetermined time T1 in step S120. At the same time, Tefin_C is set to 15° C. in step S130. The lower one of Tefin_C and Tefin determined in this way is determined as Tefin_d (step S150). After that, Tefin_d is input to the first-order lag function to acquire Tefin_AD(N). Then, the control proceeds to step S170, where the estimated value Ps_es(N) of the refrigerant inlet pressure of the compressor 2 is determined using Tefin_AD(N) and Gr.
摘要翻译： 公开了一种用于制冷循环系统的压缩机入口压力估计装置。 当在步骤S100中开启空调开关时，电子控制单元14通过判断是否发出启动压缩机2的命令来回答“是”。 之后，在步骤S120中，在定时器计数时间Tc比预定时间T1短的情况下，电子控制单元14回答为“否”。 同时，在步骤S130中将Tefin_C设定为15℃。 以这种方式确定的Tefin_C和Tefin中较低的一个被确定为Tefin_d（步骤S150）。 之后，Tefin_d被输入到一阶滞后函数中以获取Tefin_AD（N）。 然后，控制进行到步骤S170，其中使用Tefin_AD（N）和Gr来确定压缩机2的制冷剂入口压力的估计值Ps_es（N）。
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公开(公告)号：US20080289348A1
公开(公告)日：2008-11-27
申请号：US12153711
申请日：2008-05-22
CPC分类号： F25B49/027 , F25B43/02 , F25B2700/13 , F25B2700/21152
摘要： A refrigeration cycle system is disclosed. A compression unit 11 for compressing the refrigerant by the drive force of a vehicle engine 4 is arranged in a housing 10 of a compressor 1. The flow rate of the refrigerant discharged from the compression unit 11 is detected by a flow rate sensor 15 including a throttle portion 15b and a pressure difference detection mechanism 15a. The throttle portion 15b reduces the flow rate of the refrigerant discharged from the compression unit 11. The pressure difference detection mechanism 15a detects the pressure difference between the upstream side and the downstream side of the throttle portion 15b in the refrigerant flow thereby to detect the flow rate of the refrigerant discharged from the compression unit 11. An oil separator 12 for separating the lubricating oil from the refrigerant discharged from the compression unit 11 is interposed between the compression unit 11 and the flow rate sensor 15.
摘要翻译： 公开了一种制冷循环系统。 在压缩机1的壳体10内配置用于通过车辆发动机4的驱动力压缩制冷剂的压缩单元11.从压缩单元11排出的制冷剂的流量由包括 节流部15b和压力差检测机构15a。 节流部15b减少从压缩单元11排出的制冷剂的流量。压力差检测机构15a检测制冷剂流中节流部15b的上游侧和下游侧的压力差，从而检测流量 从压缩单元11排出的制冷剂的速度。用于将润滑油与从压缩单元11排出的制冷剂分离的油分离器12介于压缩单元11和流量传感器15之间。
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