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    • 5. 发明授权
    • Controller for heating in reversible air conditioning and heat pump HVAC
system for electric vehicles
    • 用于电动车辆的可逆空调和热泵HVAC系统中的加热控制器
    • US6118099A
    • 2000-09-12
    • US190547
    • 1998-11-12
    • Barry J. LakeLawrence ZiehrLance C. Tagliapietra
    • Barry J. LakeLawrence ZiehrLance C. Tagliapietra
    • B60H1/00B60H1/03H05B1/02
    • B60H1/2218B60H1/00907B60H2001/00935
    • A reversible HVAC system for heating a passenger compartment of a motor vehicle is disclosed. The HVAC system includes a heat pump and an electric heater for supplying heat directly to air blown into the passenger compartment. A controller initially selects the heat pump to provide the heat that is directed into the passenger compartment. The heat pump attempts for a predetermined period of time to heat the passenger compartment to a target temperature. The controller stores a heat pump gain value representing the heating capacity of the heat pump before switching the heating operation to the electric heater. During operation of the electric heater, the controller calculates a system heat gain value representing the required heating capacity to maintain the passenger compartment at the target temperature. While the electric heater is operating, the controller continuously modifies the heat pump gain value to reflect changes in the ambient temperature. When the heat pump gain value approximately equals or exceeds the system gain value the controller selects the heat pump to provide heating.
    • 公开了一种用于加热机动车辆的客舱的可逆HVAC系统。 HVAC系统包括一个热泵和一个电加热器,用于直接向吹入客舱的空气供热。 控制器最初选择热泵来提供被引导到乘客舱中的热量。 热泵尝试预定的时间段将乘客舱加热到目标温度。 在将加热操作切换到电加热器之前,控制器存储表示热泵的加热能力的热泵增益值。 在电加热器操作期间,控制器计算表示所需加热能力的系统热增益值,以将乘客舱保持在目标温度。 当电加热器运行时,控制器连续地修改热泵增益值,以反映环境温度的变化。 当热泵增益值大致等于或超过系统增益值时,控制器选择热泵来提供加热。
    • 9. 发明授权
    • Reversible air conditioning and heat pump HVAC system for electric
vehicles
    • 电动车可逆式空调和热泵暖通空调系统
    • US6082128A
    • 2000-07-04
    • US190925
    • 1998-11-12
    • Barry J. LakeDavid ClevelandDavid A. BarwinRobert BandeenArthur A. Naujock
    • Barry J. LakeDavid ClevelandDavid A. BarwinRobert BandeenArthur A. Naujock
    • B60H1/00F25B5/02F25B13/00F25B41/04F25B41/06F25B43/00F25B49/02
    • F25B43/003B60H1/00392B60H1/00907F25B13/00F25B41/04F25B41/06F25B41/062B60H2001/00935F25B2313/023F25B49/02F25B5/02
    • A pressure reducing assembly is provided for managing refrigerant flow in a reversible HVAC system. Refrigerant lines from the system heat exchangers connect to bi-directional ports of a pressure reducing assembly which converts the high pressure refrigerant flowing from one heat exchanger into pressure reduced refrigerant that flows to the other heat exchanger. The pressure reducing assembly converts bi-directional refrigerant flow from the heat exchangers into unidirectional refrigerant flow through a pressure reducing device. Refrigerant emitted from the pressure reducing device flows out of the pressure reducing assembly to the other heat exchanger. The invention simplifies the interconnection of reversible HVAC systems by eliminating the complex plumbing and extra valves associated with conventional systems. In addition, the invention can further integrate the receiver/drier function into the pressure reducing assembly providing a centralized device for filtering refrigerant flow and ensuring a continuous supply of liquid refrigerant to the pressure reducing device. Also, outlets can be added to the receiver portion of the pressure reducing assembly to provide a source of high pressure liquid refrigerant for secondary heat exchangers.
    • 提供减压组件用于管理可逆HVAC系统中的制冷剂流。 来自系统热交换器的制冷剂管线连接到减压组件的双向端口,该减压组件将从一个热交换器流动的高压制冷剂转换成流向另一个热交换器的减压制冷剂。 减压组件将来自热交换器的双向制冷剂流转换成通过减压装置的单向制冷剂流。 从减压装置排出的制冷剂从减压组件流出到另一个热交换器。 本发明通过消除与常规系统相关联的复杂管道和额外阀来简化可逆式HVAC系统的互连。 此外,本发明可以将接收器/干燥器功能进一步集成到减压组件中,从而提供过滤制冷剂流动的集中式装置,并确保向减压装置连续供应液体制冷剂。 此外,出口可以被添加到减压组件的接收器部分,以提供用于二次热交换器的高压液体制冷剂源。