TRACK MACHINE SPEED CONTROL DEVICE Russian patent published in 2023 - IPC H02P7/28 

FIELD: railway engineering.

SUBSTANCE: control devices for hydromechanical and pneumohydraulic power transmissions of vehicles by means of actuators driven by collector DC motors used to control hydromechanical power transmissions of railway track machines. The device for controlling the speed of the track machine includes a module for controlling the speed of the driver's cabin, a module for controlling the speed of the operator's cabin, a selector for switching the control cabin, a motion mode selector, a module for setting motion modes, a power module A for engine control, including a current amplifier and two power switches, a motor control power module B, including a current amplifier and two power switches, a feedback module, a power supply. The proposed device provides control of the electric drive of the actuators of the railway track machine hydromechanical transmission according to the frequency of rotation of the electric motor shaft with a customizable feedback loop with the setting of the electric drive control modes depending on the required mode of movement of the railway track machine when using two independent control cabins.

EFFECT: increasing the operational reliability and maintainability of the speed control device of the track machine by providing independent diagnostics and replacement of the engine control power modules and their components.

1 cl, 1 dwg