Indicating refrigerant liquid saturation point
    1.
    发明授权
    Indicating refrigerant liquid saturation point 失效
    指示制冷剂液体饱和点

    公开(公告)号:US4841734A

    公开(公告)日:1989-06-27

    申请号:US119009

    申请日:1987-11-12

    摘要: A refrigerant control system employing a "self-heated" thermistor disposed in the high pressure refrigerant line to sense refrigerant temperature from the condenser as it enters the expansion valve or capillary. The voltage drop is detected across a resistor in series with the thermistor and converted to saturation pressure from known refrigerant properties. A microprocessor de-energizes the compressor and turns on the condenser fan when excessive saturation pressure is detected. An optional second thermistor senses actual refrigerant temperature for comparison with the saturation temperature to determine sub-cooling and the microprocessor disables the compressor in the event of excessive or insufficient sub-cooling.

    Method for Controlling Vehicle Air-Conditioning System, and Vehicle Air-Conditioning System
    2.
    发明申请
    Method for Controlling Vehicle Air-Conditioning System, and Vehicle Air-Conditioning System 审中-公开
    车辆空调系统控制方法及车辆空调系统

    公开(公告)号:US20160200176A1

    公开(公告)日:2016-07-14

    申请号:US14904802

    申请日:2013-07-18

    IPC分类号: B60H1/32

    摘要: A control method for a vehicle air-conditioning system and a vehicle air-conditioning system are provided. The control method comprises: acquiring an actual superheat degree, a preset superheat degree and an opening degree of an electronic expansion valve; and determining whether the electronic expansion valve is in a fault state or not according to the actual superheat degree, the preset superheat degree and the opening degree of the electronic expansion valve; if yes, outputting a control signal to an executive control mechanism to enable same to adjust a parameter of a device affecting a change of the actual degree of superheat in a vehicle air-conditioning system so as to adjust the superheat degree of the vehicle air-conditioning system.

    摘要翻译: 提供了一种用于车辆空调系统和车辆空调系统的控制方法。 控制方法包括:获取电子膨胀阀的实际过热度,预设过热度和开度; 根据实际过热度,电子膨胀阀的预设过热度和开度判定电子膨胀阀是否处于故障状态; 如果是,则将控制信号输出到执行控制机构,以使其能够调整影响车辆空调系统中的实际过热度的变化的装置的参数,以调整车辆空调系统的过热度, 空调系统。

    Refrigeration cycle system
    3.
    发明申请
    Refrigeration cycle system 有权
    制冷循环系统

    公开(公告)号:US20040177628A1

    公开(公告)日:2004-09-16

    申请号:US10785752

    申请日:2004-02-23

    摘要: A refrigeration cycle system is disclosed. Upon generation of a start signal for a hot gas heater cycle, the cooling mode is first started thereby to start the dormant refrigerant recovery mode (S10) and, upon an increase in the compressor discharge pressure Pd to a predetermined setting P1, the cooling mode is ended and the compressor is switched to the off mode (S20, S30). Upon the lapse of a predetermined time ta in the off mode, the off mode is ended (S40) and the heating mode with the hot gas heater cycle is started.

    摘要翻译: 公开了一种制冷循环系统。 在产生热气体加热器循环的启动信号时,首先开始冷却模式,从而开始休眠制冷剂回收模式(S10),并且当压缩机排出压力Pd增加到预定设定值P1时,冷却模式 结束,压缩机切换到关闭模式(S20,S30)。 在关闭模式下经过预定时间ta时,关闭模式结束(S40),并开始热气加热器循环的加热模式。

    REFRIGERATION SYSTEM HAVING A HEAT PUMP FUNCTION FOR A MOTOR VEHICLE, HAVING A SINGLE SENSOR DEVICE ON THE LOW-PRESSURE SIDE

    公开(公告)号:US20230322045A1

    公开(公告)日:2023-10-12

    申请号:US18042821

    申请日:2021-11-10

    申请人: AUDI AG

    IPC分类号: B60H1/00 B60H1/32

    摘要: A refrigeration system having a heat pump function for a motor vehicle. The refrigeration system includes: a refrigerant compressor which is connectable or connected to a primary line; a directly or indirectly acting external heat exchanger, which is arranged in the primary line; a first evaporator, which is arranged in the primary line; a first directly or indirectly acting heat exchanger, in particular a chiller, which is arranged fluidically in parallel to the evaporator; and a refrigerant collector arranged on the low-pressure side. A single sensor device is arranged downstream of the evaporator and the further heat exchanger, in particular the chiller, which is configured to detect the pressure and the temperature of the refrigerant on the low-pressure side of the refrigeration system.

    Refrigeration cycle system
    5.
    发明授权
    Refrigeration cycle system 有权
    制冷循环系统

    公开(公告)号:US07043928B2

    公开(公告)日:2006-05-16

    申请号:US10785752

    申请日:2004-02-23

    IPC分类号: F25B41/00 F25B49/00 F25B13/00

    摘要: A refrigeration cycle system is disclosed. Upon generation of a start signal for a hot gas heater cycle, the cooling mode is first started thereby to start the dormant refrigerant recovery mode (S10) and, upon an increase in the compressor discharge pressure Pd to a predetermined setting P1, the cooling mode is ended and the compressor is switched to the off mode (S20, S30). Upon the lapse of a predetermined time ta in the off mode, the off mode is ended (S40) and the heating mode with the hot gas heater cycle is started.

    摘要翻译: 公开了一种制冷循环系统。 当产生热气体加热器循环的启动信号时,首先开始冷却模式,从而开始休眠制冷剂回收模式(S10),并且当压缩机排出压力Pd增加到预定设定值P 1时, 冷却模式结束,压缩机切换到关闭模式(S 20,S 30)。 在关闭模式下经过预定时间ta时,关闭模式结束(S40),并开始热气体加热器循环的加热模式。

    Air conditioning apparatus
    6.
    发明授权
    Air conditioning apparatus 失效
    空调设备

    公开(公告)号:US5709098A

    公开(公告)日:1998-01-20

    申请号:US658643

    申请日:1996-06-05

    IPC分类号: B60H1/00 B60H1/32 F25B49/02

    摘要: In the cooling operation, it is determined whether supplied electric current (IDC) supplied to an electric motor for driving a compressor is less than a predetermined value or not, that is, whether consumed electric power of the electric motor is less than a predetermined value or not. In the cool-down control, the determination may be "NO", however, in this case an inverter is controlled so that the IDC is set to the predetermined value. Thus, in the present invention, since IDC is always the predetermined value a1 or less and the consumed electric power of the electric motor is always the predetermined value or less, coefficiency of performance (COP) of the refrigerating cycle can be maintained to a predetermined magnitude.

    摘要翻译: 在制冷运转中,确定供给到用于驱动压缩机的电动机的供给电流(IDC)是否小于预定值,即电动机的消耗电力是否小于预定值 或不。 在冷却控制中,确定可以是“否”,但是在这种情况下,控制逆变器使得IDC被设定为预定值。 因此,在本发明中,由于IDC始终为规定值a1以下且电动机的消耗电力始终为规定值以下,所以能够将制冷循环的性能(COP)的效率保持为规定值 大小。

    Electric compressor and control device for estimating compressor discharge temperature
    8.
    发明授权
    Electric compressor and control device for estimating compressor discharge temperature 有权
    用于估计压缩机排放温度的电动压缩机和控制装置

    公开(公告)号:US08328525B2

    公开(公告)日:2012-12-11

    申请号:US12162302

    申请日:2007-01-11

    IPC分类号: F04B49/00

    摘要: An inverter-integrated electric compressor has a control device. The control device estimates a compressor suction pressure based on the temperature of the power element of the inverter, or directly measures the compressor suction pressure by a sensor, or estimates the compressor suction pressure based on a compressor suction temperature or on a compressor housing temperature. Further, the control device calculates a motor torque based on a motor rotational speed, a motor phase current, and a motor phase voltage, estimates a compressor discharge pressure based on the compressor suction pressure and the motor torque, and estimates a compressor discharge temperature based on the compressor suction pressure and the compressor discharge pressure. The electric compressor has a discharge temperature detection device in place of a conventional thermal protector.

    摘要翻译: 逆变器一体式电动压缩机具有控制装置。 控制装置基于变频器的功率元件的温度来估计压缩机吸入压力,或者通过传感器直接测量压缩机吸入压力,或者基于压缩机吸入温度或压缩机壳体温度来估计压缩机吸入压力。 此外,控制装置基于电动机转速,电动机相电流和电动机相电压来计算电动机转矩,基于压缩机吸入压力和电动机转矩来估计压缩机排出压力,并且基于压缩机排出温度基于 对压缩机的吸入压力和压缩机排气压力。 电动压缩机具有排出温度检测装置来代替传统的热保护器。