System and method for integratedly testing damping performance of hydro-pneumatic suspension vehicle

A system for integratedly testing damping performance of a hydro-pneumatic suspension vehicle, comprising:

• a testing platform;
• and
• a testing device;
• wherein the testing platform is configured for placement of a hydro-pneumatic suspension vehicle to be tested, and simulate a road excitation to allow the hydro-pneumatic suspension vehicle to be tested to generate a vibration response;
• and the testing device comprises a sensor module, a data acquiring and processing module and a testing software;
• the sensor module comprises a pressure transmitter, a speed sensor, an acceleration sensor, a displacement sensor and a dual-axis tilt sensor;
• the pressure transmitter is configured to detect a change of an oil pressure of each oil cylinder of a hydro-pneumatic suspension system of the hydro-pneumatic suspension vehicle to be tested;
• the speed sensor, the acceleration sensor and the displacement sensor are respectively configured to measure a vertical velocity, a vertical acceleration and a vertical displacement of the testing platform when the testing platform generates the road excitation, and measure a vertical velocity, a vertical acceleration and a vertical displacement of the hydro-pneumatic suspension vehicle to be tested when the hydro-pneumatic suspension vehicle to be tested is subjected to the road excitation;
• the dual-axis tilt sensor is configured to detect a vertical tilt and a lateral tilt of a main body of the hydro-pneumatic suspension vehicle to be tested;
• the data acquiring and processing module is embedded with a signal conditioning unit, and is configured to, after receiving a detection signal transmitted by the sensor module, be connected to an upper computer through a universal serial bus (USB) interface and transmit a processed signal to the upper computer;
• and the testing software is developed under a Labview program development environment, and integrates a function of sensor configuration optimization, a function of data acquisition and display and a function of data process and analysis.