Method for controlling a rail processing unit and a wheel flange lubrication device

Abstract

The present invention relates to a method for controlling a track processing unit and a wheel rim lubrication device of a rail vehicle. As a component of the rail vehicle, the track processing unit applies an auxiliary agent to a local area of ​​the rail on which the rail vehicle travels when necessary, so as to increase the friction between the wheel and the rail. As a component of the rail vehicle, the wheel rim lubrication device applies a fluid to a local area of ​​the wheel or a local area of ​​the rail of the rail vehicle when necessary, so as to reduce the friction between the wheel and the rail. The friction between the wheel and the rail is reduced by the fluid. The relative movement between the carriage and the running gear of the rail vehicle is continuously detected by means of stroke measurement, so as to detect the curve in the direction of the rail. Based on the stroke measurement, the track processing unit and the wheel rim lubrication device are controlled in a targeted manner according to the curve, so that the auxiliary agent and the fluid are applied in a resource-saving manner.

Description

Technical Field

[0001] The invention relates to a method for controlling a rail processing unit and a wheel flange lubrication device of a rail vehicle. Background Art

[0002] It is known to take measures on the track in order to improve the traction or braking force of a rail vehicle. For this purpose, a track treatment device known, for example, from document WO 2019 219223 A1 is used. The track treatment unit is used to apply an auxiliary medium (sand, air) to the traveled rail with high precision in order to improve the adhesion between the wheel and the rail and thereby increase the traction and braking force of the rail vehicle when necessary.

[0003] It is also known to use wheel flange lubrication devices for rail vehicles in order to reduce position-induced material wear and noise generation by applying a fluid, such as a lubricant or oil, in the case of unfavorable wheel assembly positions or individual wheel positions relative to the rails that are prone to wear. The fluid is applied to a local area of ​​the wheel, such as the wheel running surface, or to a local area of ​​the rail in the vicinity of the wheel.

[0004] Document EP 0854072 A1 describes a design of a wheel rim lubrication device.

[0005] In order to be able to use the rail processing unit and the wheel flange lubricating device optimally, it is necessary to adapt the rail processing unit or the wheel flange lubricating device to the actual rail path by control during operation. This allows the auxiliary agent or fluid to be applied to the rail or wheel in a targeted and resource-saving manner. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a method for controlling a rail processing unit and a wheel flange lubricating device, by which auxiliary agents or fluids can be applied to rails or wheels in a targeted and resource-saving manner when using the rail processing unit and the wheel flange lubricating device.

[0007] This object is achieved according to the invention by a method for controlling a rail handling unit and a wheel flange lubrication device of a rail vehicle.

[0008] The invention relates to a method for controlling a rail processing unit and a wheel flange lubrication device of a rail vehicle.

[0009] The rail treatment unit, as a component of a rail vehicle, applies an auxiliary agent to a partial region of a rail on which the rail vehicle travels, if necessary, in order to increase the friction between the wheels and the rail.

[0010] The wheel rim lubricating device, as a component of a rail vehicle, applies fluid to a local area of ​​the wheel (e.g., a wheel rolling surface) or to a local area of ​​the rail near the wheel when necessary. The fluid is preferably applied near the wheel rim. The friction between the wheel and the rail is reduced by the fluid.

[0011] The relative movement between the carriage and the running gear of the rail vehicle is continuously detected by means of path measurement in order to detect bends in the track.

[0012] Based on the travel measurement, the rail handling unit and the wheel flange lubrication device are controlled in a targeted manner depending on the curve, so that the auxiliary agent (in particular air or sand) or the fluid is applied in a resource-saving and effect-optimized manner.

[0013] The auxiliary agent is preferably applied to a local area of ​​the rail, while the fluid is applied to a local area of ​​the wheel.

[0014] Described fluid is applied to wheel zone, for example wheel rolling surface or is applied near wheel rim.Also can fluid be applied to rail local area near wheel when necessary, so that rail local area to be driven through is lubricated before contacting with wheel.

[0015] The invention is based on the fact that when a rail vehicle negotiates a curve, a relative movement occurs between the carriage and the running gear, which is detected and analyzed in order to detect the curve in the rail path, evaluate the curve and subsequently control the rail processing unit and the wheel flange lubrication device in a targeted manner depending on the curve.

[0016] As a result, the auxiliary agent or fluid is metered or used in a targeted manner depending on the curve.

[0017] In the present invention, the relative movement between the carriage and the running gear is determined by measuring the distance using sensors.

[0018] The distance measurement by means of sensors is carried out, for example, according to optical, inductive, ultrasonic-based or capacitive measuring principles and is designed and arranged such that the relative movement between the carriage and the chassis can be determined by the distance measurement.

[0019] According to the invention, the relative movement is determined by a travel measurement performed on a damper which is arranged and mounted in a predetermined spatial orientation between the carriage and the running gear in order to damp the relative movement.

[0020] In a preferred development, the damper comprises a sensor for determining the damper travel. As described above, a curve in the rail is detected and evaluated based on the damper travel in order to subsequently control the rail treatment unit or the wheel flange lubrication device in a targeted manner depending on the curve.

[0021] By means of the method according to the invention, a system for measuring travel, which preferably monitors six degrees of freedom between the carriage and the running gear, controls a track processing unit and a wheel flange lubrication device as a function of the detected rail curve, so that auxiliary agents or fluids are applied to the rails in a targeted and resource-optimized manner.

[0022] The method according to the invention ensures an optimum effect of the track processing unit independently of the route and driving situation.

[0023] The method according to the invention saves auxiliary medium or the device for producing and storing the auxiliary medium (air, compressed air, sand) can be made smaller and thus save costs.

[0024] The method according to the invention ensures an optimum effect of the wheel flange lubrication device regardless of the route and driving situation.

[0025] The method according to the invention saves (lubricating) fluid while maintaining full functionality.

[0026] The process according to the invention protects the environment.

[0027] By means of the method according to the invention, the rail handling unit is controlled correctly according to the curve and the lateral deviation and the type of curve.

[0028] The method according to the invention allows the wheel flange lubricating device to be operated sensitively for bends. When a bend is detected or when the radius of the bend is small, the wheel flange lubricating device is activated in a targeted manner and with a defined metering quantity or defined metering pulse of the fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The invention is explained in more detail below by way of example with reference to the accompanying drawings.

[0030] Figure 1 Here, a method according to the invention is described, in which the position of the wheels of the rail vehicle in the transverse direction relative to the rails is detected indirectly by means of path measurement. DETAILED DESCRIPTION

[0031] The effect utilized here is that when driving on a curve, the wheel-carrying chassis 5 is rotated relative to the carriage 4 in direction 1 .

[0032] This rotation is determined by means of a travel measurement. For example, a travel measurement sensor WMS is provided which is coupled to the roll damper 2 and the transverse damper 3 .

[0033] In a preferred development, the travel measuring sensor WMS is an integrated component of the roll damper 2 and of the transverse damper 3 .

[0034] The damper travel determined by measurement is used to detect lateral deviations between wheel and rail and to detect bends in the rail course.

[0035] The following conclusions can be drawn from the travel measurement:

[0036] - the type of curve (i.e. whether it is a right or left curve),

[0037] - about the radius of the curve, and

[0038] - Regarding the lateral offset between the wheel and the rail.

[0039] Thereby, the rail handling unit can be controlled correctly according to the type of lateral deviation and rail curve.

[0040] Furthermore, the wheel flange lubricator is operated in a bend-sensitive manner, ie, the wheel flange lubricator is activated in a targeted manner and with a defined metering amount when a bend is detected or when the bend radius is small.

Claims

1. A method for controlling a track processing unit and a wheel rim lubrication device of a rail vehicle, -in, The rail processing unit, as a component of a rail vehicle, applies an auxiliary agent to a local area of ​​the rail on which the rail vehicle travels when necessary, so as to increase the friction between the wheel and the rail. - wherein the wheel rim lubrication device, as a component of a rail vehicle, applies fluid to a local area of ​​a wheel or a local area of ​​a rail of the rail vehicle when necessary, so as to reduce the friction between the wheel and the rail, - in which the relative movement between the carriage and the running gear of the rail vehicle is continuously detected by means of path measurement in order to detect bends in the course of the rails, wherein the relative movement is determined by a travel measurement performed on a damper, wherein the damper is arranged and mounted in a predetermined spatial orientation between the carriage and the running gear in order to damp the relative movement, In this case, the rail processing unit and the wheel flange lubrication device are controlled in a targeted manner according to the curve based on the travel measurement, so that the auxiliary agent and the fluid are applied in a resource-saving manner.

2. The method according to claim 1, wherein: Use sensors for travel measurement.

3. The method according to claim 2, wherein: The sensors measure the distance based on an optical, inductive, ultrasonic or capacitive measuring principle.

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