Method of determining maximum service brake reduction
AssigneeNew York Air Brake Corporation
InventorsEdmund R. Peterson, Jr., Michael J. Hawthorne
Life of this patent
Estimating the term…
Abstract
A method of and a system for determining a maximum brake pipe service reduction in the brake system of a train having a pneumatic brake on each car connected to a brake pipe which is controlled by a brake pipe controller. The method includes determining the status of the brake system throughout the train and determining a maximum brake pipe reduction for the brake pipe controller, using the status of the brake system, above which further reduction will not result in further brake application in the train. The determined maximum brake pipe reduction is displayed by itself or in combination with the brake pipe reduction produced by the brake pipe controller and/or used for automatic control.
Claims40
A method of determining maximum brake pipe reduction in a brake system of a train having a pneumatic brake on each car connected to a train brake pipe which is controlled by a brake pipe controller, the method comprising:
- determining status of the pneumatic brake on the cars through out the train;
- and
- determining, using the status of the pneumatic brakes, a maximum brake pipe reduction for the brake pipe controller above which further reduction will not result in further brake application in the train.
A method of determining maximum brake pipe reduction in a brake system of a train having a pneumatic brake on each car connected to a train brake pipe which is controlled by a brake pipe controller, the method comprising:
- determining equalization pressure of the brake system at each car;
- determining the minimum determined car equalization pressure in the brake system;
- and
- determining, using the minimum determined car equalization pressure, a maximum brake pipe reduction for the brake pipe controller above which further reduction will not result in further brake application in the train.
A method of determining maximum brake pipe reduction in a brake system of a train having a pneumatic brake on each car connected to a train brake pipe which is controlled by a brake pipe controller, the method comprising:
- determining a minimum car equalization pressure of the brake system;
- determining a maximum brake pipe reduction using the minimum car equalization pressure if the minimum car equalization pressure is greater than a pressure value and using the pressure if the minimum car equalization pressure is less than the pressure value.
A method of determining maximum brake pipe reduction in a brake system of a train having a pneumatic brake on each car connected to a train brake pipe which is controlled by a brake pipe controller, the method comprising:
- determining a minimum car equalization pressure of the brake system;
- determining, using the minimum determined car equalization pressure, a maximum brake pipe reduction for the brake pipe controller;
- determining a requested brake pipe reduction;
- and
- indicating if the requested brake pipe reduction is more than the determined maximum brake pipe reduction.
A method of displaying maximum brake pipe reduction in a brake system of a train having a pneumatic brake on each car connected to a train brake pipe which is controlled by a brake pipe controller, the method comprising:
- determining a minimum car equalization pressure of the brake system;
- determining, using the minimum determined car equalization pressure, a maximum brake pipe reduction for the brake pipe controller;
- determining a requested brake pipe reduction;
- and
- displaying the determined maximum brake pipe reduction if the requested brake pipe reduction is greater than the determined maximum brake pipe reduction and displaying the requested brake pipe reduction if the requested brake pipe reduction is less than the determined maximum brake pipe reduction.
A method of controlling maximum brake pipe reduction in a brake system of a train having a pneumatic brake on each car connected to a train brake pipe which is controlled by a brake pipe controller, the method comprising:
- determining a minimum car equalization pressure of the brake system;
- determining, using the minimum determined car equalization pressure, a maximum brake pipe reduction for the brake pipe controller;
- determining a requested brake pipe reduction;
- and
- controlling the brake pipe controller to the determined maximum brake pipe reduction if the requested brake pipe reduction is greater than the determined maximum brake pipe reduction and controlling the brake pipe controller to the requested brake pipe reduction if the requested brake pipe reduction is less than the determined maximum brake pipe reduction.
A locomotive display system for a train including a brake system having a pneumatic brake on each car connected to a train brake pipe which is controlled by a brake pipe controller, the display system comprising:
- a display of brake pipe reduction at the locomotive;
- and
- a display of a maximum brake pipe reduction above which further reduction will not result in further brake application in the train.
A locomotive control system for a train including a brake system having a pneumatic brake on each car connected to a train brake pipe which is controlled by a brake pipe controller, the system comprising:
- means for determining a minimum car equalization pressure of the brake system;
- means for determining, using the minimum determined car equalization pressure, a maximum brake pipe reduction for the brake pipe controller;
- means for determining a requested brake pipe reduction;
- and
- means for controlling the brake pipe controller to the determined maximum brake pipe reduction if the requested brake pipe reduction is greater than the determined maximum brake pipe reduction and controlling the brake pipe controller to the requested brake pipe reduction if the requested brake pipe reduction is less than the determined maximum brake pipe reduction.
Dependencies are inferred from the claim text.