Abstract:
Disclosed are a sensor for measuring the height of a vehicle, a device for measuring the height of a vehicle, and an active electronic control system of the air suspension of a commercial vehicle. The sensor for measuring the height of a vehicle according to an embodiment of the present invention includes a socket fixated to a vehicle body; a housing unit joined to the socket; a lever module which is joined to the housing unit and wheels of the vehicle and is relatively rotated around the housing unit according to a change in the height of the vehicle; and a sensing module which is joined to the housing unit and which senses an electromagnetic change caused by the rotation of the lever module. According to the embodiment of the present invention, an impact on the sensing module can be prevented because the sensing module, which power is supplied, is fixated to the vehicle body while the mechanical movement is generated only in a plate unit connected to the wheels of the vehicle.
Abstract:
PURPOSE: An active electronic control system for an air suspension of a commercial vehicle is provided to control air quantity of an air suspension by using integrated control method for air quantity. CONSTITUTION: An active electronic control system for an air suspension of a commercial vehicle comprises an air spring(30), a main control valve(2), an air tank(20), a pressure valve(23), a pressure sensor(21), and a controller module. The air spring is installed for connecting each wheel and a vehicle body. The main control valve supplies compressed air to each air spring. The air tank supplies compressed air to the main control valve. The pressure valve controls the pressure of the air tank. The pressure sensor measures the pressure of the air spring and the air tank. A vehicle height sensor measures the distance between an axle and a vehicle body in each wheel. The controller module controls the main control valve by using the measured results. [Reference numerals] (2) Main control valve; (20) Air tank; (21) Pressure sensor; (23) Pressure valve; (30) Air spring; (31) Garage sensor; (AA) Signal and control line; (BB) Air supply line; (CC) Main air supply line