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Braking system having a correction device for correcting an opening time of a valve and method for correcting the opening time of the valve

A technology of opening time and braking system, which is applied in the field of braking system of rail vehicles to achieve the effect of ensuring function, maintaining air consumption and reducing air consumption

Active Publication Date: 2020-07-31
KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in a modular system a large variety of variants to be tested can be generated due to the different components

Method used

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  • Braking system having a correction device for correcting an opening time of a valve and method for correcting the opening time of the valve
  • Braking system having a correction device for correcting an opening time of a valve and method for correcting the opening time of the valve

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Embodiment Construction

[0053] The brakes of the brake system are braked or released by outputting pulses from the control device of the brake system. In this case, the braking process is triggered by outputting a first brake pulse over a certain duration, after which an effective valve opening time occurs, during which the brake system is charged with air. In order to change the braking force, a further braking pulse is then output over the effective valve opening time by means of which the brake system is further charged (that is to say the pressure on the brake is increased) or by means of The additional braking pulse vents the brake system (ie reduces the pressure on the brake). The state after the further braking pulse and after all subsequent braking pulses is referred to below as "after the currently entered effective valve opening time". The state immediately after the first braking pulse and immediately before the further currently entered effective valve opening time is referred to below a...

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Abstract

The invention relates to a braking system having a correction device (1) for correcting an opening time of a valve (103), which braking system comprises a signal input interface for a signal of a mostrecently input effective valve opening time (154), a signal input interface for a pressure (156) before the valve (103) after the most recently input effective valve opening time (154), a signal input interface for a pressure difference (125) between a pressure after the valve (103) before and after a current specification of the effective valve opening time (153), a valve opening time determination apparatus, which determines an effective reference system valve opening time (160) from the pressure difference (125) after the valve (103), the pressure (156) after the most recently input specification of the effective valve opening time (154) before the valve (103) and a parameter of the reference system (111) defining the pneumatic properties of a reference system (111), a correction timedetermination apparatus (127), which determines a correction time (162) as a difference between the most recently input effective valve opening time (154) and the effective reference system valve opening time (160), an addition apparatus (129), which adds up the correction times (162) after a current effective valve opening time (152) to form a summed correction time (164), and a signal output forthe summed correction time (164), by means of which summed correction time the current effective valve opening time (153) is corrected.

Description

technical field [0001] The invention relates to a brake system with a correction device for an opening time of a valve and a method for correcting the opening time of a valve, and in particular to a brake system for a rail vehicle. Background technique [0002] The brakes of the rail vehicle are usually actuated by means of a pneumatic brake system, which is actuated by a control or regulating device. In order to realize the functionality of the brake system, a model-based pressure control or regulation is created on the development side. In this case, the effective valve opening time, ie the time during which the valve is actually open, is calculated for the desired change in the target pressure. For this calculation, characteristic characteristic quantities of the pneumatic path, ie parameters such as volume and aerodynamic transmission values, are used. [0003] When using pressure control, in the event of unfavorable valve performance or unsuitable parameterization, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/66
CPCB60T13/662B60T13/683B60T13/365B60Y2400/81B60T8/171B60T8/172B60T13/26
Inventor S·哈特尔T·拉赛尔
Owner KNORR BREMSE SYST FUR SCHIENENFAHRZEUGE GMBH
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