SYSTEM AND METHOD FOR CONTROLLING THE PNEUMATIC DRIVE OF A BEAM CAR RETARDER Russian patent published in 2023 - IPC B61K7/08 

FIELD: railway equipment.

SUBSTANCE: invention is intended for use in railway transport in systems of automation and telemechanics of beam car retarders (CT) on hump yards preventing wheel squeezing out. The CT pneumatic drive control system (PD) has an electro-pneumatic valve control unit, pressure sensors in the main pneumatic line, air collector and control cavity of the brake valve; pneumatic distributors with electromagnets controlling the releasing valve; switching unit; an electronic control unit (ECU) with modules of analogue and discrete signals for controlling electromagnets, the inputs of which are connected through the controller and the switching unit to the control outputs from the hump station (HT), whereas the system has position sensors of the rolling surfaces of the left and right wheels of the car relative to the rolling surfaces of the rails installed before the air intake, and sensors in the air intake zone, connected to the ECU analogue signal module, and voltage sensors installed on the rail up to the air intake and in the air intake zone, connected to the strain gauge connected to the ECU discrete signal module. The control method of the described CT PD system is implemented in accordance with the program loaded into the ECU to perform actions in accordance with the algorithm, whereas the ECU interrogates the DNR and DPK and stores their current readings; the program compares the readings of the DNR and DPK located in the area of the beam air intake with the readings of the DNR and DPK installed before the wheels enter the area of the beam air intake, in order to determine the current position of the wheel tread surface relative to the rail tread surface; when the stresses in the rails decrease and the gap between the rolling surfaces of the rails and wheels increases, the program controls the release of pressure in the pneumatic cylinders to reduce the braking force.

EFFECT: elimination of squeezing of the wheels of the car from the beam air intake, which can lead to the derailment of the car.

5 cl, 3 dwg