System And Method For Monitoring Braking Effort
First Claim
1. A method comprising:
- monitoring fluid pressures of a braking system and modeled braking efforts of the braking system in a vehicle system traveling along a route;
identifying one or more time periods at least one of before a brake event of the braking system or after the brake event;
calculating residual forces exerted on the vehicle system during the one or more time periods; and
determining at least one of an estimated braking effort of the braking system or an estimated propagation rate at which the estimated braking effort is applied by the braking system using the residual forces that are calculated.
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Abstract
A method (e.g., for monitoring a braking system of a vehicle system) includes monitoring fluid pressures of a braking system and modeled braking efforts of the braking system in a vehicle system traveling along a route, identifying one or more time periods at least one of before a brake event of the braking system or after the brake event, calculating residual forces exerted on the vehicle system during the one or more time periods, and determining at least one of an estimated braking effort of the braking system or an estimated propagation rate at which the estimated braking effort is applied by the braking system using the residual forces that are calculated.
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Citations
21 Claims
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1. A method comprising:
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monitoring fluid pressures of a braking system and modeled braking efforts of the braking system in a vehicle system traveling along a route; identifying one or more time periods at least one of before a brake event of the braking system or after the brake event; calculating residual forces exerted on the vehicle system during the one or more time periods; and determining at least one of an estimated braking effort of the braking system or an estimated propagation rate at which the estimated braking effort is applied by the braking system using the residual forces that are calculated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A control system comprising:
a vehicle controller configured to monitor fluid pressures of a braking system and modeled braking efforts of the braking system in a vehicle system traveling along a route, the vehicle controller also configured to identify one or more time periods at least one of before a brake event of the braking system or after the brake event, the vehicle controller further configured to calculate residual forces exerted on the vehicle system during the one or more time periods and determine at least one of an estimated braking effort of the braking system or an estimated propagation rate at which the estimated braking effort is applied by the braking system using the residual forces that are calculated. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method comprising:
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measuring air pressures of an air braking system of a vehicle system before and after a brake event representing activation of the air braking system; modeling braking efforts provided by the air braking system before and after the brake event; identifying a pre-brake event time period when both the air pressures do not vary by more than a first threshold amount and the braking efforts that are modeled do not vary by more than a second threshold amount; calculating pre-brake event residual forces exerted on the vehicle system during the pre-brake event time period; and estimating at least one of an actual braking effort of the air braking system or a propagation rate at which the actual braking effort is applied by the air braking system using the residual forces that are calculated. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification