Four-quadrant operation real-time simulator based on electric hydraulic actuator and simulation method

• Main Authors: HU ZHAOXIA, XU JINQUAN, GUO HONG
• Format: Patent
• Language: Chinese; English
• Published: 07.01.2022
• Subjects: BLASTING; CALCULATING; COMPUTING; COUNTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; ELECTRIC DIGITAL DATA PROCESSING; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MECHANICAL ENGINEERING; PHYSICS; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; WEAPONS

The invention discloses a four-quadrant operation real-time simulator based on an electric hydraulic actuator and a simulation method. The simulator comprises a working condition setting module used for setting a displacement working condition instruction, an information obtaining module which is used for obtaining electrical characteristic parameters of the electric hydraulic actuator according to the displacement working condition instruction, a controller which is used for generating a first instruction according to the electrical characteristic parameters, and a conversion module which is used for generating analog signals. According to the simulator, port electrical characteristic data of an EHA four-quadrant operation condition are obtained; by controlling the energy flow under different working conditions when the EHA runs, the energy flow condition of an EHA actual system under the corresponding working condition is simulated; real-time simulation of the EHA is completed through bidirectional energy c