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Multi-axle transportation vehicles usually adopt distributed electro-hydraulic proportional systems based on network to perform the complicated manipulation and control functions. Aiming to the adverse effects caused by network induced time delay, a networked sliding mode control strategy for leveling subsystem of multi-axle transportation vehicles is presented. The model of distributed leveling subsystem...
The advance of robotics, actuators and manufacturing technology motivates the research on measurement of multiple degree-of-freedom (DOF) rotational motions. A novel laser-based noncontact high-precision spherical displacement measurement methodology has been proposed for spherical actuator applications in this paper. The laser detector is utilized to measure the distance from the target to the detector...
For the uncertain NCS with stochastic network delay less than one period, a sort of RBFNN-DSMC algorithm combining discrete sliding mode control and RBF neural network is presented. In view of the coupling influence of time-variable delay and plant model error as well as exterior disturbance, RBFNN is used to approach the equivalent disturbance online and output assistant control quantity so as to...
This paper mainly focuses on the swashplate angle dissimilar redundancy measurement of the variable displacement pump in the electrohydraulic compound integrated actuator (EHCA). Dissimilar redundancy means that the practical system can acquire more than one measurement values to describe a certain signal through hardware or software manners. Aiming to the need of software sensing, the signal needed...
This paper proposed a novel method providing high-update rate vehicle posture and velocity estimation using real-time kinematics global position system (RTK-GPS) and simple in-vehicle speed sensors. The RTK-GPS noise processing techniques are used to discard the noises that do not satisfy the Kalman filter model. Combining the RTK-GPS and speed sensors using extended Kalman filter (EKF) provided a...
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