Abstract

The present disclosure relates to an electric control leveling valve for a vehicle, comprising: a vehicle height variation detection device, which is used for detecting a height variation of a vehicle body of the vehicle and generating a height variation electrical signal characterizing the height variation of the vehicle body; a control device, which generates a corresponding valve control command based on the height variation electrical signal; and a valve device, which is in gaseous coupling to a secondary suspension system of the vehicle and adjusts air mass of the secondary suspension system based on the valve control command. The present disclosure further relates to a corresponding vehicle, comprising such an electric control leveling valve. In some embodiments, the control can be made more flexible and active to facilitate diagnosis of faults of the electric control leveling valve, so that the valve can be replaced in time.

IPC Classes  ?

• B61K 9/00 - Railway vehicle profile gaugesDetecting or indicating overheating of componentsApparatus on locomotives or cars to indicate bad track sectionsGeneral design of track recording vehicles
• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B61F 99/00 - Subject matter not provided for in other groups of this subclass
• G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time

Abstract

Disclosed are a braking pad and a brake. The braking pad comprises a back plate (100), at least one group of friction elements (200), and at least one support element (400), wherein the support element is arranged between the back plate and the at least one group of friction elements in a manner of being inclinable relative to the back plate, such that the inclination of the support element can cause the inclination of the at least one group of friction elements relative to the back plate; moreover, the support element comprises a protruding portion (404), the back plate comprises a recessed portion (106), and the protruding portion of the support element can be at least partially accommodated in the recessed portion of the back plate, so as to allow the inclination of the support element relative to the back plate. Compared with the prior art, the friction elements of the braking pad can better fit the uneven friction surface of a braking disc, thereby achieving a better braking effect.

IPC Classes  ?

• F16D 69/04 - Attachment of linings
• F16D 65/092 - Bands, shoes or padsPivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes

Abstract

A mark-aligning stopping control method for a rail vehicle. The method comprises: determining whether a vehicle meets a state conversion condition; if so, recording a linear velocity change amount (ΔV) of a wheelset of the vehicle within a sampling period (ΔT), and performing calculation according to the sampling period and the linear velocity change amount, so as to obtain an actual deceleration value; and determining a braking force compensation amount according to the actual deceleration value and a theoretical deceleration value. The method improves the accuracy of mark-aligning stopping of a rail vehicle, and closed-loop control of a braking system is formed.

IPC Classes  ?

• B61H 11/00 - Applications or arrangements of braking or retarding apparatus not otherwise provided forCombinations of apparatus of different kinds or types

Abstract

Disclosed in the present utility model is a remote release control system for air braking of a railway vehicle, comprising a remote release electromagnetic valve and a remote release control loop. The remote release electromagnetic valve comprises a control part, an intake valve, and an exhaust valve, wherein the control part is connected to the remote release control loop in series, the intake valve is used for connecting an upstream pressure source and a brake cylinder in a basic brake device, and the exhaust valve is communicated with an exhaust passage of the brake cylinder. The remote release control loop comprises a power supply, an operation button, a remote release relay, and a braking state relay. According to the remote release operation system of the present utility model, an operator does not need to walk to a passenger compartment to operate a cut-out cock one by one, and air braking can be completely released by means of one-click operation of a ground control center or a cab, so that time and labor are saved. A control circuit and an emergency braking loop are interlocked, the remote release function is invalid for emergency braking, and the emergency braking safety distance is not affected, thereby ensuring the operation safety.

IPC Classes  ?

• B61H 13/00 - Actuating rail-vehicle brakes

Abstract

An electrically controlled height valve (1) for a vehicle, the electrically controlled height valve (1) comprising: a vehicle body height variation detection apparatus (11), used to detect a height variation of the vehicle body of the vehicle and generate a height variation electrical signal representing the height variation of the vehicle body; a control apparatus (12), generating a corresponding valve control command on the basis of the height variation electrical signal; and a valve apparatus (13) which is gas-coupled with a secondary suspension system of the vehicle, and adjusts a gas pressure of the secondary suspension system on the basis of the valve control command. Further disclosed is a vehicle, in particular a rail vehicle, comprising the electrically controlled height valve (1), which can achieve more flexible and active control, and is convenient for diagnosing a fault in the electrically controlled height valve (1), so as to replace same in a timely manner.

IPC Classes  ?

• B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
• B61F 5/10 - Bolster supports or mountings incorporating fluid springs

Abstract

A deadhead return control system for a locomotive or a control car similar to a locomotive having a deadhead stop and a piston valve with the connection status of the piston valve being controlled by the status of the deadhead stop. A first end of the deadhead stop is connected to a pilot end of the piston valve, a second end of the deadhead stop is connected to the atmosphere, a third end of the deadhead stop is connected to the external main air pipe. When the deadhead stop has a closed status, the first end of the stop is connected to the second end of the stop and when the stop has an open status, the first end of the stop is connected to the third end of the stop to allow for the air from said main air pipe to flow into the piston valve.

IPC Classes  ?

• B60T 7/16 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger operated by remote control, i.e. initiating means not mounted on vehicle
• 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
• B61H 13/00 - Actuating rail-vehicle brakes