Many industrial applications of hydraulic manipulators, such as settling in positioning,
tracking control, and programming by demonstration, require precise compensation of the …

In this article, a velocity-free adaptive controller is proposed for the tracking control of servo
mechanisms with friction compensation. A continuously differentiable friction model is …

This paper proposes a novel neural network-based robust adaptive synchronization and
tracking control strategy for multi-motor driving servo systems. By designing a hyperbolic …

The conventional tracking control of mechanical systems is generally based on the
stabilization of error dynamics and most of the results can only guarantee asymptotic …

Pump-controlled hydraulic actuators (PHAs) contain slow mechanical and fast hydraulic
dynamics, and thus singular perturbation theory can be adopted in the control strategies of …

In order to mitigate the substantial influence of nonlinear friction torque on the performance
of permanent magnet synchronous motor (PMSM)-based servo systems, this article …

This paper investigates the transmission performance of a novel dual-drive hydrostatic lead
screw micro-nano feed system (DDHLS) that can obtain extremely low speed. Firstly, the oil …

In a networked control system (NCS), time delays, uncertainties, packet losses, and
exogenous disturbances seriously affect the control performance. To solve these problems …

In this work, an adaptive fast terminal sliding mode control (AFSMC) approach based on
joint torque estimation and friction compensation is proposed to enhance the trajectory …

Nonlinear friction forces are the predominant force disturbance in permanent magnet linear
synchronous motors (PMLSMs) with guide rails. Moreover, nonlinear friction exacerbates the …