Method for improving heating performance of automobile air conditioner

Abstract

The invention discloses a method for improving the heating performance of an automobile air conditioner, wherein the air inlet of the automobile air conditioning system has three states, which are aninternal circulation state, an external circulation state and an intermediate compensation state, and the method mainly utilizes the intermediate compensation state to improve the heating performance;the method comprises the following steps of: judging whether the current temperature setting is of a heating state in response to the vehicle being electrically connected to the ON gear; if not in aheating state, judging whether the current mode of the air inlet of the heating ventilation air conditioner is set to the external circulation state, if so, controlling a circulation air door to be inthe external circulation state, if not, controlling the circulation air door to be in the internal circulation state; if in a heating state, judging whether the current mode of the air inlet of the heating ventilation air conditioner is set to the external circulation state, if not, controlling the circulation air door to be in the internal circulation state, if yes, judging whether the current gear of the blower is larger than a preset gear, if so, then controlling the circulation air door to be in the intermediate compensation state, and if not, controlling the circulation air door to be inthe external circulation state. The method can effectively improve the heating performance of the air conditioner.

Description

technical field [0001] The invention belongs to the field of automobile air conditioners, and in particular relates to a method for improving the heating performance of an automobile air conditioner. Background technique [0002] With the improvement of power technology, the engine is increasingly pursuing excellent power economy, which also brings some adverse effects. For example, after the engine efficiency is improved, the calorific value of the engine itself is further reduced, thereby reducing the engine water temperature, resulting in poor heating effects that rely on the engine water temperature. In most cold northern regions in winter, the heating demand for automotive air conditioners is strong, which cannot be met. User comfort needs. [0003] In order to improve the heating performance of the air conditioner, traditional cars often use auxiliary heating equipment to improve the heating effect, such as PTC heaters, fuel auxiliary heaters, etc. Although they can s...

AI Technical Summary

Problems solved by technology

For example, after the engine efficiency is improved, the calorific value of the engine itself is further reduced, thereby reducing the engine water temperature, resulting in poor heating effects that rely on the engine water temperature. In most cold northern regions in winter, the heating demand for automotive air conditioners is strong, which cannot be met. user comfort needs

[0003] In order to improve the heating performance of the air conditioner, traditional cars often use auxiliary heating equipment to improve the heating effect, such as PTC heaters, fuel auxiliary heaters, etc. Although they can significantly improve the heating effect, the price of the heater itself is basically more than 300 yuan. Moreover, the process of using the car will also generate additional energy consumption, which will greatly increase the cost of the user's car purchase and use.

If no auxiliary heating equipment is used, the traditional HVAC technology will use electronic water valves, increase the heat transfer capacity of the heater core and other means to improve the water temperature and heating effect of the heater core, but the development cycle and development cost are relatively long. high

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