Air dam system for vehicle and passenger car provided with same

Abstract

The invention relates to an air dam system for a vehicle and a passenger car provided with the air dam system. According to the air dam system, the rear side face of an air dam is provided with a sensor used for measuring deformation of the air dam, the output end of the sensor is connected to a control unit, the output end of the control unit is connected with an alarm in a controlling mode, ground clearance data of important components of a chassis are stored in the control unit, and logic capable of comparing object data with the ground clearance data and controlling the alarm according to a comparison result is also stored in the control unit. When the vehicle travels normally, the air dam can prevent high-speed airflow from impacting the chassis directly and avoid formation of a large number of vortexes, so that the purpose of lowering aerodynamic resistance is achieved. When the vehicle travels on an uneven road surface at a low speed, once the vehicle collides with a barrier, the air dam deforms, the control unit detects a deformation signal through the pressure sensor, compares the deformation signal with the ground clearance data, stored in the control unit, of the important components of the chassis and sends an instruction to the alarm according to the comparison result, and therefore early warning of scratching of the chassis of the vehicle is achieved.

Description

technical field [0001] The invention relates to an air dam system for vehicles and a passenger car with the system, belonging to the technical field of vehicle air dam systems. Background technique [0002] Regardless of economic factors or environmental factors, people are paying more and more attention to the energy saving and emission reduction of automobiles, and reducing the aerodynamic resistance of automobiles is one of the effective ways to save energy and reduce emissions. In order to achieve this purpose, various air dams have been designed, such as folding air dams, retractable air dams, passive expandable air dams, etc. These designs are mainly to balance the contradiction between the poor wind resistance reduction effect of the too short air dam and the influence of the car passability by the too long air dam. This design concept stems from the small ground clearance of passenger cars, and the height of the air dam generally needs to exceed 50mm to have a more ...

AI Technical Summary

Problems solved by technology

At the same time, due to urban road construction and other reasons, buses often drive on uneven roads, and the driver's carelessness will cause the chassis to be scratched by sharp objects, and the loss is far greater than the damage of the air dam.

Images