The method of development of the electronic control system for curvilinear motion of a high-speed tracked vehicle with dual-flow transmission

Abstract

BACKGROUND: Handling and safety requirements to high-speed tracked vehicles (HSTV) rise in tandem with the growth of average motion velocities. The issue of ensuring continuously variable turn radius at curvilinear motion is relevant for HSTVs. Current layouts of steering mechanisms are able to meet this requirement, however they have certain disadvantages and are not compatible with electronic systems improving motion safety and lowering demands to mechanic-drivers’ skills.

AIMS: The synthesis of control laws for dual-flow transmission with a hydrostatic steering mechanism (HSSM) controlled by an electromechanical actuator which exclude “hard” links between steering handwheel and working volume adjustment mechanism of the HSSM.

METHODS: The study methods are based on using numerical simulation and ensuring real-time operation of the developed models. In addition, the study methods include synthesis of control algorithms for vehicle’s mechanical systems, used in on-board controllers, with adequacy assessment at virtual and laboratory experiments.

RESULTS: The method of development of control systems (CS) making possible to develop and to debug CSs without a HSTV prototype has been put into force. With using the described method, the total time of CS development and debugging reduces. Workability of the method is proved with the example of development of the CS for curvilinear motion of the HSTV with dual-flow transmission.

CONCLUSIONS: The study aim has been achieved, the accomplished work shows validity of the given methof of CS development.

Keywords

high-speed tracked vehicle / curvilinear motion / control system / dual-flow transmission / hydrostatic steering mechanism

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