System for adjusting brake and power output of locomotive

Abstract

The invention relates to a system for adjusting brake and power output of a locomotive, which comprises a rotating speed sensor arranged at a wheel axle of the locomotive and used for collecting the rotating speed of wheels; the control microcomputer is respectively connected with the rotating speed sensor and the sanding system, and in the braking process of the locomotive, when the rotating speed of the wheels is suddenly reduced to 0 within the preset time, the wheels are locked, and the control microcomputer controls the sanding system to carry out sanding; in the locomotive running process, when the wheel rotating speed suddenly increases by a set threshold value within preset time, the wheels idle, and the control microcomputer controls the locomotive to brake. The wheel rotating speed change is monitored in real time through the rotating speed sensor, and the state change of the wheel can be quickly responded. The real-time monitoring ensures that the control microcomputer can timely identify the locking or idling condition of the wheels and take corresponding measures, so that the safety and reliability of the locomotive are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of locomotive monitoring, and in particular to a system for regulating the braking and power output of a locomotive. Background Art

[0002] In the process of modernization of railway transportation in recent years, locomotive automation has become an important direction to promote the safe, efficient and intelligent development of railways. When driving a locomotive, in order to shorten the braking distance as much as possible, it is necessary to avoid wheel locking and make the entire wheel and brake shoe fully rub. At present, locomotive drivers mainly rely on driving experience to judge the braking force required for the vehicle to avoid wheel locking. However, due to the large differences in driving experience and judgment ability of different drivers, the driver's judgment of braking force may be inconsistent under the same circumstances. This subjectivity will lead to unstable braking effect and increase the risk of accidents. Summary of the invention

[0003] To solve the above problems, an object of an embodiment of the present invention is to provide a system for adjusting the braking and power output of a locomotive.

[0004] A system for regulating the braking and power output of a locomotive, comprising:

[0005] A speed sensor is arranged at the wheel axle of the locomotive to collect the wheel speed;

[0006] The control microcomputer is connected to the speed sensor and the sand spreading system respectively. During the braking process of the locomotive, when the wheel speed suddenly drops to 0 within a preset time, the wheel is locked, and the control microcomputer controls the sand spreading system to spread sand; during the operation of the locomotive, when the wheel speed suddenly increases to a set threshold within a preset time, the wheel idles, and the control microcomputer controls the locomotive braking.

[0007] Preferably, it also includes:

[0008] A forward sand-spreading electric control valve is connected to the control microcomputer and the sand-spreading system, respectively, and is used to control the sand-spreading system to spread sand in front of the wheel;

[0009] The rearward sand-spreading electric control valve is connected to the control microcomputer and the sand-spreading system respectively, and is used to control the sand-spreading system to spread sand behind the wheels.

[0010] Preferably, it also includes:

[0011] The unloading relay is connected to the control microcomputer and is used for unloading the power source of the locomotive according to the signal of the control microcomputer.

[0012] Preferably, it also includes:

[0013] The brake relief electric control valve is connected to the control microcomputer and is used to brake the locomotive according to the signal of the control microcomputer.

[0014] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0015] The present invention relates to a system for adjusting the brake and power output of a locomotive. Compared with the prior art, the present invention monitors the change of wheel speed in real time through a speed sensor and can quickly respond to the change of the state of the wheel. This real-time monitoring ensures that the control microcomputer can timely identify the situation of wheel locking or idling and take corresponding measures, thereby improving the safety and reliability of the locomotive.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a system for regulating locomotive brakes and power output in an embodiment provided by the present invention. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1 , a system for regulating the braking and power output of a locomotive, comprising:

[0023] A speed sensor is arranged at the wheel axle of the locomotive to collect the wheel speed;

[0024] A control microcomputer is connected to the speed sensor and the sand spreading system respectively. During the braking process of the locomotive, when the wheel speed drops to 0 within a preset time, the wheel is locked, and the control microcomputer controls the sand spreading system to spread sand;

[0025] In actual application, the change of locomotive speed is a relatively smooth curve. When the wheels are locked, the speed curve will suddenly drop to zero. When braking is required in an emergency, the control microcomputer will quickly apply braking force and judge whether the braking state is normal based on the change rate of the speed curve smoothness. Once an abnormal state occurs, the braking force will be adjusted according to the current state of the locomotive, and the sand spreading system will be controlled to automatically spread sand to increase the friction coefficient between the wheels and the rails and suppress the occurrence of wheel locking (i.e. sliding).

[0026] During the operation of the locomotive, when the wheel speed suddenly increases to a set threshold within a preset time, the wheels idle and the control microcomputer controls the locomotive brakes;

[0027] Furthermore, when the locomotive is in operation and there is no brake operation, if the locomotive speed increases suddenly, the microcomputer controls the unloading relay to disconnect the power of the locomotive and apply the brake to restore the speed to a smooth speed curve.

[0028] Furthermore, the present invention also includes:

[0029] A forward sand-spreading electric control valve is connected to the control microcomputer and the sand-spreading system, respectively, and is used to control the sand-spreading system to spread sand in front of the wheel;

[0030] The rearward sand-spreading electric control valve is connected to the control microcomputer and the sand-spreading system respectively, and is used to control the sand-spreading system to spread sand behind the wheels.

[0031] The unloading relay is connected to the control microcomputer and is used for unloading the power source of the locomotive according to the signal of the control microcomputer.

[0032] The brake relief electric control valve is connected to the control microcomputer and is used to provide braking force to the locomotive according to the signal of the control microcomputer.

[0033] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0034] The present invention relates to a system for adjusting the brake and power output of a locomotive. Compared with the prior art, the present invention monitors the change of wheel speed in real time through a speed sensor and can quickly respond to the change of the state of the wheel. This real-time monitoring ensures that the control microcomputer can timely identify the situation of wheel locking or idling and take corresponding measures, thereby improving the safety and reliability of the locomotive.

[0035] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technical solution that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A system for regulating the braking and power output of a locomotive, characterized in that: include: A speed sensor is arranged at the wheel axle of the locomotive to collect the wheel speed; The control microcomputer is connected to the speed sensor and the sand spreading system respectively. During the braking process of the locomotive, when the wheel speed suddenly drops to 0 within a preset time, the wheel is locked, and the control microcomputer controls the sand spreading system to spread sand; during the operation of the locomotive, when the wheel speed suddenly increases to a set threshold within a preset time, the wheel idles, and the control microcomputer controls the locomotive braking.

2. A system for adjusting the braking and power output of a locomotive according to claim 1, characterized in that: Also includes: A forward sand-spreading electric control valve is connected to the control microcomputer and the sand-spreading system, respectively, and is used to control the sand-spreading system to spread sand in front of the wheel; The rearward sand-spreading electric control valve is connected to the control microcomputer and the sand-spreading system respectively, and is used to control the sand-spreading system to spread sand behind the wheels.

3. A system for adjusting the braking and power output of a locomotive according to claim 2, characterized in that: Also includes: The unloading relay is connected to the control microcomputer and is used for unloading the power source of the locomotive according to the signal of the control microcomputer.

4. A system for adjusting the braking and power output of a locomotive according to claim 3, characterized in that: Also includes: The brake relief electric control valve is connected to the control microcomputer and is used to brake the locomotive according to the signal of the control microcomputer.

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