On-vehicle air conditioner with humidity adjustment function

A technology for vehicle air conditioning and humidity regulation, which is applied to household appliances, vehicle parts, air treatment equipment, etc., can solve the problem of reducing the dehumidification speed, and achieve the effect of increasing the humidity in the car, improving the drying situation, and stabilizing the dehumidification effect.
CN101726071AInactive Publication Date: 2010-06-09ZHEJIANG GEELY HOLDING (GROUP) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG GEELY HOLDING (GROUP) CO LTD
Publication Date
2010-06-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a dehumidifying method for an on-vehicle air conditioner, and the on-vehicle air conditioner manufactured by the method. When the humidity detected by a humidity sensor deviates from a set value, the rotating speed of a compressor is controlled by changing the duty ratio of a PWM signal, a pressure sensor increased at the air inlet end of the compressor of an air-conditioning system consisting of an electric compressor can detect the pressure in a tube, and the pressure sensor outputs the corresponding changed resistance value so as to determine the pressure change of an evaporator, keep the evaporation pressure of the evaporator at an optimal value, adjust the evaporation temperature, and ensure that the humidity of the air in the vehicle tends to be the set value to meet the comfortable requirement of the human body. Therefore, the aim of quick dehumidification can be fulfilled, and the dehumidifying effect is stable. The humidity compensating control provided by the invention can increase the humidity in the vehicle in low amplitude under the condition that the external temperature is higher than the temperature in the vehicle, and also can improve the dryness condition caused by over dehumidification under the condition of unchangeable temperature.
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Description

technical field

[0001] The invention relates to a method and device for adjusting humidity of a vehicle-mounted air conditioner, in particular to a method for controlling the dynamic rotational speed of an incoming compressor in the method, and a device involved in the method. Background technique

[0002] In the prior art, more and more vehicle-mounted air conditioners adopt electric compressors, that is, the power of the compressors is provided by the motor, and has nothing to do with the engine. In this way, the air conditioning system of the vehicle can work independently of the operation of the engine, which can greatly reduce the load of the vehicle and optimize the power configuration. Driven by changing the duty cycle of the PWM signal of the driver, the electric compressor can realize speed regulation, and then the humidity and temperature can be adjusted by controlling the compressor speed. Due to the unreasonable control method in the humidity adjustment process,...

Claims

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