Návrh testovacího a zatěžovacího stanoviště servopohonu

Abstract

This master’s thesis deals with the design and implementation of a specialized load test bench for testing low-power automotive servo drives. The main objective of the thesis is to develop a methodology and a technical solution that enables a realistic simulation of real operating conditions, both in terms of static and dynamic loading, including the simulation of mechanical end stops. The thesis first defines the types and parameters of the tested servo drives and presents an analysis of possible loading methods. Based on this analysis, a load test bench utilizing torque control by means of a permanent magnet synchronous motor is designed and implemented. The solution includes the design of the mechanical structure, implementation of the control algorithm, and development of a user interface for system control and tuning. The proposed test bench enables the generation of the required load torque over a wide range, including the simulation of mechanical end stops and compensation of mechanical backlash. The functionality of the system was experimentally verified, achieving high loading accuracy, particularly at higher torque values. The results also indicate the presence of torque oscillations, which are inherent to the tested system and were significantly reduced through appropriate control design.

The main contribution of this thesis is the implementation of a flexible and extendable testing device suitable for development, lifetime, experimental, temperature, and environmental testing of servo drives.