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The main requirements to which the brake system of a vehicle should respond are provision of the standard operation speed and protection features of the control pneumatic drive in case of a malfunction of any of its elements. The article describes a design of modified pneumatic brake drive having improved protection properties in case of damage of a diaphragm of any brake chambers, and methodology of parameter optimization of such drive allowing to create a layout of drive assemblies with the necessary operation speed for MAZ truck-based road trains.

A perspective design technique of on-board computers for mobile agricultural machines is their creation on the basis of standard modules allowing to reduce the designing period, to improve reliability, quality, and also to make operation and modernization of designed systems cheaper. Because modules are made in different standards, there is a problem of choice of modules for a concrete application. The paper considers various problems of application of a PCI bus in on-board computers of mobile agricultural machines. Recommendations on efficient use of the PCI bus are given.