Vehicle defrosting and demisting method and device

Abstract

The invention discloses a vehicle defrosting and demisting method and device. The method comprises the steps that after an automatic defrosting and demisting function is started, a shielding area and shielding objects (at least one of frost and fog) of a front windshield are determined based on first light data and second light data of the lower portion and the upper portion of a main view area of a driver on the front windshield; when the sheltering object comprises frost, target working parameters of the air conditioning system are determined based on the sheltering area; if not, the position (one of the inner side and the outer side) of a shelter on the front windshield is determined based on the current temperature parameter and the current humidity parameter inside and outside the vehicle, and the target working parameters of the air conditioning system are determined based on the sheltering area and the position of the shelter; and the air conditioning system is controlled to work according to the target working parameters so as to remove shelters on the front windshield. According to the method and the device, the appropriate working parameters can be automatically selected to quickly defrost and demist, a user does not feel uncomfortable, the trouble of repeated manual adjustment of the user can be avoided, and the driving safety is improved.

Description

technical field [0001] The present application relates to the field of computers, in particular to a method and device for defrosting and defogging a vehicle. Background technique [0002] When users use the car, they often encounter the problem of frosting or fogging on the front windshield, which seriously affects the driver's vision and poses a safety hazard. At present, when the front windshield is fogged or frosted, the user will press the defrost button to activate the air conditioning system to clear it. Moreover, in the existing design, after the user presses the defrost button, the air output of the air conditioning system will automatically be at the highest or second highest level, the compressor of the air conditioning system will automatically start, and the air output mode of the air conditioning system will also be automatically adjusted to The front windshield defrost mode, but the temperature and circulation mode (internal circulation or external circulatio...

AI Technical Summary

Problems solved by technology

[0003] Since the user is not a professional, for the temperature setting, whether to choose cold air or hot air, whether to choose internal circulation or external circulation for the circulation mode, and how much air volume should be adjusted? Appropriate, both difficult for users

If the choice is inappropriate, it may lead to unsatisfactory defrosting effect of the front windshield, or lead to more serious fogging of the front windshield, and make the occupants feel uncomfortable

For example, in autumn and winter, users generally choose the heating mode. As the temperature inside the car rises, it will form a situation of "hot inside and cold outside". When the user presses the defrosting and defogging button and sets the defrosting temperature, if the temperature is set too high, it will increase the degree of fog and affect safety; if the temperature is set too low, passengers will feel uncomfortable

For another example, in the alternating seasons of spring and summer or summer and autumn, when the outdoor temperature is humid and the temperature inside the car is low, a situation of "cold inside and hot outside" will be formed. When the external water vapor meets the cold glass, fog will form on the outside of the glass. , at this time, the user presses the defrosting and defogging button and sets the temperature. If the temperature is too high, passengers will feel uncomfortable; if the temperature is too low, it will increase the degree of fogging of the glass at this time and affect safety.

[0004] In the face of the current situation, the user needs to repeatedly adjust to achieve the purpose of defrosting and defogging. If the time is too long, it will affect the driving safety and needs to be improved urgently

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