Air suspension control system concept for N3, M3 category vehicles

Abstract

Problem. In the automotive industry, controlled suspension systems are widely used. At the initial stages of development of onboard control systems, in accordance with the degree of development of electronic components and communication channels, devices based on the analog principle of receiving, processing, monitoring and transmitting signals were used. The rapid development of digital technologies and, in particular, microcontrollers and high-speed digital communication channels, encourages the improvement of existing and the creation of new on-board control systems. At present, the problem of creating a progressive concept of the air suspension control system for wheeled vehicles of this category remains urgent. Goal. The purpose of the work is to substantiate the choice of the concept of the control system of the air suspension for wheeled vehicles of a certain category and to consider the algorithm of its operation. Methodology. The perspective method of control, monitoring and increase of efficiency of functioning of the onboard distributed control system of a pneumatic suspension bracket of wheeled vehicles on the basis of the organization of autonomous knots is realized. Results. The schematic diagram, structure and components of the controlled air suspension of wheeled vehicles of a certain category, as well as the algorithm of the distributed control system based on a set of intelligent mechatronic modules connected by a high-speed data channel are presented. Originality. A new concept of the pneumatic suspension control system of wheeled vehicles is proposed. A new approach to improving the efficiency of operation and ensuring the efficiency of the control system of air suspension of wheeled vehicles based on the use of information network environment is proposed. Unlike the traditional approach, the proposed approach has a greater degree of flexibility in the mechanism of its implementation and operation. Practical value. The proposed system provides for the possibility of upgrading existing wheeled vehicles not equipped with electronic air suspension control systems, while maintaining the structure of the existing pneumatic drive with a short length of pipelines, by unifying the mounting points of the mechanical control valve.