Self testing process for a railway brake system
AssigneeKnorr-Bremse Rail Systems (UK) Limited
InventorNigel ANSTEY
Life of this patent
Estimating the term…
Abstract
A brake system has prime functions involving active control of equipment by a break ECU, which brake ECU comprises a microcontroller and a non-volatile memory. The non-volitile memory is adapted to store the result of tests on the safety circuits carried out during, before or after operation of the brake system, the result of the tests being assigned one of at least two statuses, at least one of the said statuses being indicative of an unhealthy test. At start-up of the brake system for which an unhealthy status has been stored in the non-volitile memory, thereby enabling the brake system to operate prime functions without prior self-test.
Claims6
A brake system having prime functions, which prime functions involve active control of equipment by a brake ECU, which brake ECU comprises a microcontroller and a non-volatile memory, the non-volatile memory being adapted to store the result of tests on the safety circuits carried out during, before or after operation of the brake system, the result of the tests being assigned one of at least two statuses, wherein at least one of the said statuses is indicative of an unhealthy test, wherein at start-up of the brake system self-tests are carried out on the circuits or components of the brake system for which an unhealthy status has been stored in the non-volatile memory, thereby enabling the brake system to operate prime functions without prior self-test.
Dependencies are inferred from the claim text.