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ChTZ Bulldozer has been modified for using an Electronic Control System
ChTZ-Uraltrac / News / ChTZ Bulldozer has been modified for using an Electronic Control System
Chelyabinsk Tractor Plant (UVZ Group, Rostech State Corporation) manufactured the advanced model of the hydromechanical drive B11 bulldozer that is completely controlled by joysticks.
Need to say that designers have been developing and testing the electrohydraulic control machine for several years but this is the first bulldozer to be controlled by so-called "full" joystick. Whereas a joystick on previously designed tractors could be used for controlling movement only, the last model can be used for controlling attached implements, as well. Two additional joysticks are used for operating a dozer blade and a ripper.
While maintaining long-term relations with Avtomatika Research Center, Yekaterinburg, designers could introduce an electronic controller - an on-board computer - in the "B11 Project" and could promptly develop its manager program. Thanks to employment of a controller and joysticks, the machine is capable to make turning in a fixed sequence: firstly, a friction clutch is released, than a brake is actuated (though there is an option for emergent braking). This is possible to prevent damaging brake bands in the events of turning when any inexperienced operator tries to actuate a brake keeping out of releasing a friction clutch - electronic controller will block such operation.
Designers tried to create not only a high-grade and customer-specific machine fitted with "full-scale" joystick controls but also a technologically-enhanced and economic bulldozer. No servo is currently used in a new machine as a transmission control unit. It is not required now for use since an electronic control system has appeared. That's why the matter of production of a complicated mechanical unit stands no longer. The machine "stuffing" has been simplified and, on the other part, its reliability has been improved.
For another thing, the tractor cab fitted with joysticks looks like a "capsule" wherein noise level was brought down by two decibels. Additionally, there are sliding vents on the operator lateral walls.
"The new machine is currently tested. On testing, it will be delivered to one of the operating company for operation under our surveillance. And this machine will not be operated by a qualified test driver who is duly skilled and tries to save a new product, but by an ordinary tractor operator to be briefly instructed about B11 tractor. Manufacturing of a pilot version of such tractors will start in February. It is planned that batch production of the machine equipped with a new control system will be launched in 2019" - said Leonid Vershinsky, Design Manager of the Special Construction Machine Design Department.

Press Office of CHTZ-URALTRACK LTD

CHTZ, tractors, bulldozers, pipelayers, loaders

 

CHTZ, tractors, bulldozers, pipelayers, loaders

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