CONTROLLING SYSTEM AND CONTROLLING METHOD FOR BALANCING COOLING AND NOISE OF A TRUCK

摘要

CONTROLLING SYSTEM AND CONTROLLING METHOD FOR BALANCING COOLING AND NOISE OF A TRUCK The present invention relates to a controlling system and a controlling method for balancing cooling and noise of a truck. The controlling system comprises a left adjustable fan set, a right 5 adjustable fan set, a rear adjustable fan set, a first noise sensor, a second noise sensor, a rotating speed sensor and a controller. The first noise sensor and the second noise sensor are arranged under a floor of a truck driving cab. The rotating speed sensor is arranged on a cooling fan. Each of the first noise sensor, the second noise sensor and the rotating speed sensor is connected to the controller through a signal line. Each of the left adjustable fan set, the right adjustable fan set and 10 the rear adjustable fan set is connected to the controller through a control line. According to this technical solution, by comparing, by the controller, values of the first noise sensor, the second noise sensor and the rotating speed sensor with preset values, the angles of adjustable fan vane of an adjustable fan on the side face of an engine are adjusted, and therefore the noise and the cooling of the engine is balanced. 15 Figure 3 20 25 30 35 40