The invention relates to a PWM temperature control method and device based on an electrothermal film, and the method is applied to an electric vehicle, and comprises the following steps: obtaining the temperature in a cabin, the temperature outside the cabin, and the target temperature of a vehicle cabin in real time; according to the in-cabin temperature, the out-cabin temperature and the target temperature, one or more temperature control stages of an electrothermal film are determined through pulse width modulation; and according to each temperature control stage, the corresponding preset duty ratio parameter and the control precision, the temperature of the electrothermal film is adjusted so that the electrothermal film can reach the target temperature and adapt to the environment. According to the invention, ON/OFF automatic control and different power modulation are carried out on the heating film according to the PWM principle, so that the temperature control accuracy and the automatic working degree of the heating film are greatly improved, and the electric energy loss of the heating film is saved to the greatest extent.
本发明涉及一种基于电热膜的PWM温度控制方法及装置,其方法应用于电动车辆,包括如下步骤:实时获取车辆座舱的舱内温度、舱外温度,以及目标温度;根据所述舱内温度、舱外温度和目标温度,通过脉冲宽度调制,确定电热膜一个或多个温度控制阶段;根据每个温度控制阶段和其对应的预设占空比参数,以及控制精度,调节电热膜的温度以使其达到目标温度并适应环境。本发明通过PWM原理对加热膜的ON/OFF自动控制以及不同功率调制,大大的提高了对加热膜的温控精准度及自动化工作程度,且最大程度节省加热膜的电能损耗。
PWM temperature control method and device based on electrothermal film
一种基于电热膜的PWM温度控制方法及装置
2023-12-29
Patent
Elektronische Ressource
Chinesisch
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet |
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