Automatic defrosting control system and method for passenger car

Abstract

The invention discloses an automatic defrosting control system and method for a passenger car. The automatic defrosting control system comprises a controller, an outside-car sensor set, an inside-carsensor set, an output control unit, a defrosting machine, a storage unit and a display unit. The inside-car sensor set is used for collecting the temperature and humidity of the internal environment of a vehicle, the out-vehicle sensor group is used for collecting the temperature and humidity of the external environment of the vehicle, and the controller compares the currently collected temperature and humidity of the interior and exterior of the vehicle with operating parameters and set parameters in the memory. The temperature difference and the humidity difference between the interior and the exterior of the vehicle are judged, and the controller dynamically adjusts the PWM output of the output control unit and adjusts the wind speed by analyzing the temperature and the humidity of theinterior and the exterior of the current vehicle in real time so as to achieve the purposes of energy conservation and consumption reduction; according to the defrosting control system, the operatingparameters are set through the touch keys on the display unit, so that the defrosting effect of the system is improved.

Description

technical field [0001] The invention relates to the technical field of automatic defrosting of windshields of passenger cars, in particular to an automatic defrosting control system and method for passenger cars. Background technique [0002] When buses run in the cold winter in the northern region, condensation or frost often occurs on the surface of the windshield, which affects the driver's forward vision and poses a threat to driving safety; therefore, a heating system is installed on the bus. When the windshield is frosted, manually defrost the windshield. When the defrosting system is working, the hot air flows out from the defrosting air duct on the instrument panel, and the hot air flow forms a hot air belt on the inner surface of the windshield glass, and the air in the car and the glass are separated. Separated, and dissipate heat to the glass surface through convection and radiation, so that the temperature of the inner surface of the glass rises to achieve the pu...

AI Technical Summary

Problems solved by technology

[0003] The existing defrosting system only has two gears, high and low. After finishing the windshield defrosting work, if you switch to the low gear, sometimes the amount of hot air is too small, causing condensation again. If you keep working at the high gear, it will cause energy In terms of the structural characteristics of the vehicle, due to the defrosting hot air flow field, temperature field, windshield frost layer distribution and heat transfer characteristics between the hot air flow and the windshield, The influence of wind flow velocity, etc., will affect the defrosting effect of the windshield to a certain extent when the inlet speed and inlet temperature of the hot air flow into the defrosting air duct in the defrosting system can be changed

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