This paper addresses the structural-parametric synthesis and kinematic analysis of the RoboMech class of parallel mechanisms (PM) having two sliders. The proposed methods allow the synthesis of a PM with its structure and geometric parameters of the links to obtain the given laws of motions of the input and output links (sliders). The paper outlines a possible application of the proposed approach to design a PM for a cold stamping technological line. The proposed PM is formed by connecting two sliders (input and output objects) using one passive and one negative closing kinematic chain (CKC). The passive CKC does not impose a geometric constraint on the movements of the sliders and the geometric parameters of its links are varied to satisfy the geometric constraint of the negative CKC. The negative CKC imposes one geometric constraint on the movements of the sliders and its geometric parameters are determined on the basis of the Chebyshev and least-square approximations. Problems of positions and analogues of velocities and accelerations of the considered PM are solved to demonstrate the feasibility and effectiveness of the proposed formulations and case of study.

This paper presents an integrated predictive energy-management approach for a hybrid photovoltaic (PV)–battery–supercapacitor system supplying a permanent-magnet synchronous motor (PMSM) drive. The architecture combines maximum power point tracking, bidirectional DC-DC conversion, battery protection, supercapacitor-based transient support, DC-link regulation, and PMSM vector control. A MATLAB/Simulink model assessed power sharing, storage behaviour, DC-link dynamics, drive response, and conversion efficiency. Simulated PV power varied between 1.1 and 4.3 kW, battery state of charge remained near 65%, DC-link voltage stayed close to its reference, and overall efficiency reached approximately 92–97%. The results show that the proposed strategy reduces battery stress, compensates short-term power peaks, and supports stable drive operation under variable generation and load conditions.