High-speed braking large creep adhesion control method and device

• Main Authors: CAI TIAN, LI BANGGUO, YANG WEIJUN, ZHANG BO, GU YOUQUAN, ZHOU JUN, CAO HONGFA, FAN GUIXIN, QI ZHENGLIANG, KONG BIN
• Format: Patent
• Language: Chinese; English
• Published: 26.11.2021
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; LOCOMOTIVES; MOTOR RAILCARS; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; RAILWAYS; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

The invention provides a high-speed braking large-creep adhesion control method and device, and the method comprises the steps: obtaining the brake cylinder pressure of a target motor train unit, and recognizing the actual adhesion coefficient between wheel rails of the motor train unit in the wheel set sliding process according to the brake cylinder pressure; according to the actual adhesion coefficient, calling a pre-stored anti-skid speed criterion table constructed based on an association relationship between the adhesion coefficient and creep; according to the anti-skid speed criterion table, the reference speed of the current vehicle of the target motor train unit, the difference between the wheel set and the reference speed and the actual adhesion coefficient, obtaining corresponding control parameters through the anti-skid speed criterion table; and according to the control parameters, dynamically adjusting the actual adhesion coefficient of the wheel rail to be the target adhesion coefficient through