Battery life prediction and monitoring

    公开(公告)号:US10562377B2

    公开(公告)日:2020-02-18

    申请号:US15635249

    申请日:2017-06-28

    Abstract: A refrigeration system for a vehicle includes a compressor in fluid communication with a condenser and an evaporator. The compressor includes a variable speed motor and employs capacity modulation using refrigerant injection. The condenser and the evaporator include variable speed fans. The refrigeration system includes a battery to supply power to the refrigeration system. The battery is charged by one or more sources of power including the vehicle. The refrigeration system includes a control module configured to monitor one or more characteristics of the battery and to control one or more operating parameters of one or more of the compressor, the condenser, and the evaporator based on the one or more characteristics of the battery.

    Evaporator freeze prevention systems and methods

    公开(公告)号:US10807437B2

    公开(公告)日:2020-10-20

    申请号:US16123425

    申请日:2018-09-06

    Abstract: An air conditioning system of a vehicle having an internal combustion engine includes a condenser configured to receive refrigerant output by an electric compressor and transfer heat from the refrigerant within the condenser to air passing the condenser. A first evaporator is configured to receive refrigerant from the condenser when a first control valve is open and transfer heat from air passing the first evaporator to the refrigerant within the first evaporator. A first blower is configured to blow air across the first evaporator to a first section of a cabin of the vehicle. A second evaporator is configured to receive refrigerant from the condenser when a second control valve is open and transfer heat from air passing the second evaporator to the refrigerant within the second evaporator. A second blower is configured to blow air across the second evaporator to a second section of the cabin of the vehicle.

    Vehicle air conditioning control systems
    3.
    发明授权

    公开(公告)号:US10668783B2

    公开(公告)日:2020-06-02

    申请号:US16123359

    申请日:2018-09-06

    Abstract: An air conditioning system of a vehicle having an internal combustion engine includes a condenser configured to receive refrigerant output by an electric compressor and transfer heat from the refrigerant within the condenser to air passing the condenser. A first evaporator is configured to receive refrigerant from the condenser when a first control valve is open and transfer heat from air passing the first evaporator to the refrigerant within the first evaporator. A first blower is configured to blow air across the first evaporator to a first section of a cabin of the vehicle. A second evaporator is configured to receive refrigerant from the condenser when a second control valve is open and transfer heat from air passing the second evaporator to the refrigerant within the second evaporator. A second blower is configured to blow air across the second evaporator to a second section of the cabin of the vehicle.

    System and method of controlling an oil return cycle for a refrigerated container of a vehicle

    公开(公告)号:US10328771B2

    公开(公告)日:2019-06-25

    申请号:US15635239

    申请日:2017-06-28

    Abstract: A compressor compresses a refrigerant. A eutectic plate cools a refrigerated space. An evaporator cools the refrigerated space. A mixture of the refrigerant and an oil flows through the evaporator and the eutectic plate. A control module controls the compressor, a first valve that permits or prevents flow of the mixture to the eutectic plate, and a second valve that permits or prevents flow of the mixture to the evaporator. In response to a temperature of the refrigerated space being greater than a predetermined temperature, the control module: increases a speed of the compressor; operates the compressor at the increased speed for a predetermined time period; after the predetermined period: opens the second valve; and closes the first valve, where the control module opens the second valve before closing the first valve, and decreases the speed of the compressor after closing the first valve.

    Startup control systems and methods to reduce flooded startup conditions

    公开(公告)号:US10569620B2

    公开(公告)日:2020-02-25

    申请号:US15635688

    申请日:2017-06-28

    Abstract: A refrigeration system includes a startup mode control module that receives an off time of a compressor of the refrigeration system and an ambient temperature, determines whether the off time and the ambient temperature indicate that the compressor is in a flooded condition, and selects, based on the determination, between a normal startup mode and a flooded startup mode. A compressor control module operates the compressor in the normal startup mode in response to the startup mode control module selecting the normal startup mode, in the flooded startup mode in response to the startup mode control module selecting the flooded startup mode, and transitions from the flooded startup mode to the normal startup mode after a predetermined period associated with operating in the flooded startup mode. The compressor is operated at a first speed in the normal startup mode and at a second speed in the flooded startup mode.

    System and method for compressor motor protection
    8.
    发明授权
    System and method for compressor motor protection 有权
    压缩机电机保护系统及方法

    公开(公告)号:US08964338B2

    公开(公告)日:2015-02-24

    申请号:US13737566

    申请日:2013-01-09

    Abstract: A system includes a refrigerant compressor including an electric motor, a current sensor that measures current flow to the electric motor, a switching device configured to close and open to allow and prevent current flow to the electric motor, respectively, a maximum continuous current (MCC) device that includes a resistance corresponding to a maximum continuous current for the electric motor, and a motor protection module. The motor protection module communicates with the MCC device, the current sensor, and the switching device and determines a first MCC value for the electric motor as a function of the resistance of the MCC device. The motor protection module also selectively sets a predetermined MCC to the first MCC and controls the switching device based on a comparison of the current flow to the electric motor and the predetermined MCC.

    Abstract translation: 一种系统包括:制冷剂压缩机,包括电动机,测量到电动机的电流的电流传感器,分别关闭和打开以允许和防止电流流向电动机的开关装置;最大连续电流(MCC )装置,其包括对应于电动机的最大连续电流的电阻,以及电动机保护模块。 电动机保护模块与MCC装置,电流传感器和开关装置通信,并且根据MCC装置的电阻确定电动机的第一MCC值。 电动机保护模块还选择性地将预定的MCC设置到第一MCC,并且基于对电动机和预定MCC的电流的比较来控制开关装置。

    Compressor discharge pressure based control systems and methods

    公开(公告)号:US10857851B2

    公开(公告)日:2020-12-08

    申请号:US16123500

    申请日:2018-09-06

    Abstract: An air conditioning system of a vehicle having an internal combustion engine includes a condenser configured to receive refrigerant output by an electric compressor and transfer heat from the refrigerant within the condenser to air passing the condenser. A first evaporator is configured to receive refrigerant from the condenser when a first control valve is open and transfer heat from air passing the first evaporator to the refrigerant within the first evaporator. A first blower is configured to blow air across the first evaporator to a first section of a cabin of the vehicle. A second evaporator is configured to receive refrigerant from the condenser when a second control valve is open and transfer heat from air passing the second evaporator to the refrigerant within the second evaporator. A second blower is configured to blow air across the second evaporator to a second section of the cabin of the vehicle.

    Startup control systems and methods for high ambient conditions

    公开(公告)号:US10532632B2

    公开(公告)日:2020-01-14

    申请号:US15635779

    申请日:2017-06-28

    Abstract: A refrigeration system includes a startup mode control module that receives at least one parameter associated with operation of a compressor of the refrigeration system, determines whether the at least one parameter indicates that the compressor is in a high ambient temperature startup condition, and selects, based on the determination, between a normal startup mode and a high ambient temperature startup mode. A compressor control module operates the compressor in the normal startup mode in response to the startup mode control module selecting the normal startup mode, operates the compressor in the high ambient temperature startup mode in response to the startup mode control module selecting the high ambient temperature startup mode, and transitions from the high ambient temperature startup mode to the normal startup mode after a predetermined period associated with operating in the high ambient temperature startup mode.

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