Passenger compartment humidity control system and method

Abstract

A passenger compartment humidity control system is disclosed. In a powered state of a vehicle, an air-conditioning controller automatically acquires the temperature and relative humidity inside a passenger compartment in real time through an in-vehicle temperature sensor and an in-vehicle humidity sensor, and acquires the atmospheric temperature outside the vehicle and relative humidity signals, according to the allowable relative humidity threshold corresponding to the temperature inside the passenger compartment, the related controlled objects are automatically driven to complete the actionssuch as dehumidification, humidification and switching the air conditioning cycle modes in the passenger compartment, so as to control the relative humidity inside the passenger compartment to maintain at a reasonable level; at that same time, the temperature and the relative humidity of the area near the inner wall of a front windshield are detected according to a front windshield temperature and humidity detection module in the humidification process, and whether an air conditioning inner and outer circulation actuator and an air conditioning mode actuator need to be driven is calculated and confirmed. The signal source selection of the system is more reasonable, the passenger compartment can be controlled in the optimal humidity range, the fog problem of the front windshield caused bythe humidification process is simultaneously avoided, and the accurate control over the humidity of the passenger compartment is met.

Description

technical field [0001] The invention belongs to the field of automobile air conditioners, and in particular relates to the humidity control technology for passenger compartments. Background technique [0002] The current mainstream automotive air conditioning configuration can only control the temperature of the passenger compartment, but the relative humidity cannot be accurately controlled. Relevant studies have shown that humidity has a greater impact on human comfort and health. For example, studies have found that in an environment with high relative humidity, the amount of pineal hormone secreted by the pineal gland in the human body is also large, which makes the concentration of thyroxine and adrenaline in the body relatively lower, and the cells will "lazy" , People will be listless, listless, and have a higher probability of suffering from rheumatic arthralgia, and in a high-temperature and high-humidity environment, when the water vapor tends to be saturated, it ...

AI Technical Summary

Problems solved by technology

[0002] The current mainstream car air-conditioning configuration can only control the temperature of the passenger compartment, but the relative humidity cannot be accurately controlled

Images