Method and apparatus for learning and validating brake deceleration rates

US10889276B2 · kind B2 · utility

Assignee

• Westinghouse Air Brake Technologies Corporation · US

Inventors

• Andrew Ryan Staats · Cedar Rapids, US
• Keith E. Smith · Cedar Rapids, US
• Brian James Langstraat · Cedar Rapids, US
• Stuart J. Barr · Cedar Rapids, US
• James A. Oswald · Coggon, US
• Jeffrey D. Kernwein · Cedar Rapids, US

Key dates

• Filing date: Sep 28, 2018
• Grant date: Jan 12, 2021
• Expiry date: May 1, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L67/12
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a method of train deceleration, a train computer: (a) causes brakes of the train to be set according to a target deceleration curve, profile, or braking model estimated to decelerate the train from a present speed at a present location to a target speed at a target location; (b) during deceleration of the train according to the target deceleration curve, profile, or braking model of step (a), determines an actual deceleration curve of the train; (c) in response to determining from the actual deceleration curve that the train will overshoot the target speed at the target location, determines another target deceleration curve, profile, or braking model estimated to decelerate the train to the target speed at the target location; and (d) causes the brakes of the train to be set according to the other target deceleration curve, profile or braking model of step (c).