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LIN Mechatronics Applied to HVAC Expansion Valves

机译：LIN机械电子学应用于HVAC膨胀阀

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The paper starts with a general introduction to balanced automotive actuator designs and then reviews some important aspects and potential pitfalls related to stepper motor actuators. It is shown how these items can be addressed by means of advanced stepper motor driver technologies including sensorless operation and resonance characterization. Then the operation of an automotive climate control system and its main components is discussed, including evaporator and expansion valve. It is explained that accurate control of refrigerant flow by the expansion valve is a key element to improve the HVAC efficiency. The current mechanical design of expansion valves does not provide optimal control in all circumstances. As an alternative, the operation of an electro-mechanic expansion valve is explained and it is shown how an expansion valve equipped with a linear stepper motor and a LIN stepper motor driver can bring a balanced solution towards better fuel-economy in HVAC systems.
机译：本文首先介绍了平衡型汽车执行器的总体设计，然后回顾了与步进电机执行器相关的一些重要方面和潜在的陷阱。展示了如何通过先进的步进电机驱动器技术解决这些问题，包括无传感器操作和共振表征。然后讨论了汽车气候控制系统及其主要组件（包括蒸发器和膨胀阀）的操作。据解释，通过膨胀阀精确控制制冷剂流量是提高HVAC效率的关键因素。当前的膨胀阀机械设计并不能在所有情况下提供最佳控制。作为替代方案，说明了电动膨胀阀的操作，并显示了配备线性步进电动机和LIN步进电动机驱动器的膨胀阀如何为HVAC系统中的燃油经济性带来平衡解决方案。

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