Abstract

An automatic control system and method for a telescopic coupler cushioning apparatus, used for coupler control. The control system comprises a locking electric cylinder (2), a telescopic electric cylinder (1), a mechanical coupler decoupling electric cylinder (4), an electric coupler telescopic electric cylinder (7), and a controller (3); the telescopic electric cylinder (1) and the locking electric cylinder (2) are both installed on a telescopic rod (81) of a mechanical coupler (8); the decoupling electric cylinder (4) is arranged at a coupler head (82) of the mechanical coupler (8); the electric coupler telescopic electric cylinder (7) is arranged on an electric coupler (701); sensors for detecting the states of the electric cylinders are respectively installed on the electric cylinders; the controller collects the states of the sensors and communicates with the electric cylinders, and outputs controls signals for the electric cylinders. The control system achieves fully-automatic control over the whole process of stretching and retracting, locking, coupling and decoupling of a mechanical coupler, and stretching and retracting, coupling and the like of an electric coupler, thereby solving the problem of some of tramcars having no gas path power source, and satisfying the requirement for a narrow space below a vehicle.

IPC Classes  ?

• B61G 7/00 - Details or accessories

Abstract

Disclosed in the present application are an automatic detection apparatus and detection method for the coupling state of a coupler. The detection apparatus comprises: a first sensing unit, which is disposed on a coupler body, and is configured to detect the deflection state of an uncoupling handle on the coupler body; a second sensing unit, which is disposed on a coupling end face of a coupler body, and is configured to detect the contact state of a coupling end face between the two butt-joint coupler bodies; and a controller, which is electrically connected to the first sensing unit and the second sensing unit, and determines the state of a coupler on each coupler body by means of the deflection state of the uncoupling handle and the contact state of the coupling end face. The detection apparatus can automatically detect and feed back the state of a coupler in a timely manner when the coupler is coupled and uncoupled, and manual intervention is not required, such that the detection apparatus has high detection precision, a quick response, and high reliability.

IPC Classes  ?

• B61G 7/00 - Details or accessories

Abstract

Provided in the present application are a locomotive brake control system and control method. The system comprises a balance cylinder equalizing pipe control module, a brake cylinder control module and main air. When an air inflation/deflation solenoid valve for controlling a brake cylinder or a second relay valve fails, multiple redundancies such as a mechanical three-way valve, balance cylinder equalizing pipe pressure and an emergency pressure-increasing valve can be used, so as to realize redundancy control over the pressure of the brake cylinder.

IPC Classes  ?

• B60T 13/68 - Electrical control in fluid-pressure brake systems by electrically-controlled valves
• B60T 13/66 - Electrical control in fluid-pressure brake systems
• B60T 17/22 - Devices for monitoring or checking brake systemsSignal devices
• B61H 11/06 - Applications or arrangements of braking or retarding apparatus not otherwise provided forCombinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes

Abstract

Disclosed in the present application are a brake caliper unit fatigue test device capable of simulating brake torque, and a test method. The test device comprises: a base, a support and a mounting holder being provided on the base; a rotating lever, which is hinged to the support; a push cylinder, which is hinged between an end of the rotating lever and the base; a pair of clamping plates, which is arranged at the other end of the rotating lever, wherein the clamping plates are connected to a brake caliper unit by means of friction or are rigidly connected to the brake caliper unit by means of a force transmission pin; and a control system. The test device can simulate brake torque, more realistically simulate braking conditions, and achieve loading of a disc friction force on a brake caliper unit; moreover, a torque value can be adjusted to adapt to different test requirements.

IPC Classes  ?

• G01M 13/00 - Testing of machine parts

Abstract

A hydraulic brake cylinder with a clearance adjustment function. The hydraulic brake cylinder comprises: an oil cylinder body (1), and a piston (2), a transmission shaft (4) and a clearance adjustment ring (5), which are arranged in the oil cylinder body, wherein the end of the oil cylinder body in an axial direction is provided with an opening (19), and a stop sleeve (3) is mounted at the opening; one end of the transmission shaft is connected to the piston, and the end of the transmission shaft away from the piston extends out of the oil cylinder body through the stop sleeve; and the clearance adjustment ring is arranged on the transmission shaft, and can axially move in a second oil cavity (1102) along with the transmission shaft, and can be blocked and limited by the stop sleeve to generate axial deformation. The device can achieve the functions of braking, braking release and clearance adjustment by changing the oil pressures and the magnitudes thereof on two sides of the piston, and the device has a simple structure, and improves the braking sensitivity and driving safety. The present application further relates to a hydraulic brake caliper device.

IPC Classes  ?

• F16D 65/72 - Slack adjusters hydraulic

Abstract

The present application provides an asynchronous braking control method and system for a train. The asynchronous braking control method comprises the following steps: after a braking command is received, calculating initial braking force values of a locomotive and vehicles; determining road conditions of the locomotive and each vehicle; measuring the ramp angle at a rail position where the locomotive or each vehicle is located, and according to the ramp angle, calculating the dead weight component of the locomotive and of each vehicle in a braking direction; respectively calculating a target braking force of the locomotive and of each vehicle on the basis of brake cylinder pressures corresponding to the initial braking force values in combination with the dead weight component of the locomotive and of the vehicle; and braking systems of the locomotive and each vehicle respectively performing asynchronous braking according to the respective target braking force of the locomotive and each vehicle. According to the asynchronous braking control method and system provided by the present application, the braking force of the locomotive and of each vehicle can be differentially controlled on the basis of the road conditions of the locomotive and each vehicle, reducing the coupler force of the train, and improving the operation safety of the train.

IPC Classes  ?

• B60T 13/66 - Electrical control in fluid-pressure brake systems
• B61H 11/10 - Aerodynamic brakes with control flaps, e.g. spoilers, attached to the vehicles

Abstract

A control system and method for the pressure of a train pipe of a locomotive. The control system comprises a main air pipe; a relay valve, an input port of which is connected to the main air pipe; a train pipe, which is connected to an output port of the relay valve; an equalizing reservoir, which is connected to a control port of the relay valve; a first solenoid valve, which is connected to the main air pipe and the train pipe; a second solenoid valve, which is connected to the train pipe and the atmosphere; a first pressure switch, which is connected to the first solenoid valve; and a second pressure switch, which is connected to the second solenoid valve, wherein the first pressure switch can be closed when the pressure of the equalizing reservoir is greater than the pressure of the train pipe, such that the first solenoid valve is powered on to connect the main air pipe to the train pipe; and the second pressure switch can be closed when the pressure of the train pipe is greater than the pressure of the equalizing reservoir, such that the second solenoid valve is powered on to connect the train pipe to the atmosphere. The control system and method for the pressure of a train pipe of a locomotive can compensate for the pressure difference between an equalizing reservoir and a train pipe caused by the mechanical hysteresis of a relay valve, thereby improving the accuracy of control over the pressure of the train pipe.

IPC Classes  ?

• B61H 11/10 - Aerodynamic brakes with control flaps, e.g. spoilers, attached to the vehicles

Abstract

The present application relates to an emergency brake control system and method. The system comprises a main gas channel portion and a brake control portion. The main gas channel portion comprises a brake air storage cylinder, a relay valve and a brake cylinder, which are sequentially connected by means of a gas channel. The brake control portion comprises a first brake control portion and a second brake control portion, wherein the first brake control portion comprises a first control gas channel capable of being inflated and deflated; the second brake control portion comprises a second control gas channel capable of being inflated and deflated, and an empty and loaded vehicle valve; the second control gas channel is connected to a control port of the empty and loaded vehicle valve; and an air outlet of the first control gas channel or of the empty and loaded vehicle valve is connected to a control port of the relay valve.

IPC Classes  ?

• B60T 13/24 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
• B60T 8/17 - Using electrical or electronic regulation means to control braking
• B60T 13/68 - Electrical control in fluid-pressure brake systems by electrically-controlled valves
• B61H 13/00 - Actuating rail-vehicle brakes

Abstract

The application provides a telescopic coupler locking device, comprising: a housing, which can be connected to one end of a telescopic coupler; a traction rod: which can be connected to the other end of the telescopic coupler, and at least one locking slot is formed on a side wall; a telescopic assembly: a fixed end is connected inside the housing, and a telescopic end is connected to a traction rod; a locking ring: which is sleeved on the inner side of an open end of the housing; at least one locking block assembly: which is installed on the locking ring and can move in a telescopic manner in the radial direction of the housing. The number of the locking slot corresponds to the number of the locking block assembly. When the traction rod retracts into the housing, the locking block assembly can be inserted into the locking slot to limit the extending motion of the traction rod.

IPC Classes  ?

• B61G 7/12 - Adjustable coupling bars, e.g. for centralisation purposes

Abstract

A locomotive brake control system, comprising a brake cylinder control system (001), an equalising pipe control system (002), and a switching cock (101); when the switching cock (101) is in an on position, if the locomotive brake control system loses power or experiences a fault or is in an unpowered loopback mode, then the equalising pipe control system (002) outputs the pressure of the equalising pipe on the basis of the pressure of a mechanical distribution valve, and the brake cylinder control system outputs the pressure of the brake cylinder on the basis of the pressure of the mechanical distribution valve and the pressure of the equalising pipe; when the switching cock (101) is in a cutoff position, if the locomotive brake control system loses power or experiences a fault, then the brake cylinder control system outputs the pressure of the brake cylinder on the basis of the pressure of the mechanical distribution valve and the pressure of the equalising pipe from the lead locomotive. Also relating to a locomotive brake control method.

IPC Classes  ?

• B61H 11/06 - Applications or arrangements of braking or retarding apparatus not otherwise provided forCombinations of apparatus of different kinds or types of hydrostatic, hydrodynamic, or aerodynamic brakes
• B61H 11/10 - Aerodynamic brakes with control flaps, e.g. spoilers, attached to the vehicles
• B60T 15/02 - Application and release valves