The Safety of Mechatronic Control Systems for Hydromechanical Transmissions

Modern vehicles have a number of safety systems, main of which are basic control systems - steering and braking systems.

Requirements to these systems, defined by the vehicles design safety, are regulated by the system of the international and national standards and rules.

Mechatronic control systems of the hydromechanical transmissions pertain to the “yongest” automotive systems, and questions dealing with their safety don't have yet the complete theoretical and normative base.

The connection between these mechatronic systems safety and their structure is investigated in this paper. The method of the safety analysis with help of the “refusal graphs” is proposed, which permits to bring out and to eliminate the possibility of the dangerous refusals capable to create the crash situations during automobile motion.