Patent ID: 9580094
Date: 2017-02-28
CPC Classifications: B60L,B60T,B61C,B61H,B61L,Y02T

Claim:
1. A control system for selectively preventing movement of a locomotive, the locomotive including a brake system, a power system, and a wheel assembly in operable communication with the brake system and the power system, the brake system configured to release or apply braking force to the wheel assembly, the power system configured to provide power to the wheel assembly, the control system comprising: a plurality of access control devices for the locomotive, each access control device of the plurality of access control devices including a status indicator, each access control device configured to activate or deactivate the status indicator based on user input received by any of the plurality of access control devices, and configured to transmit status data indicative of a status of the locomotive to a locomotive controller, the status either a blue flag status or a ready status, wherein at least one of the access control devices is a mobile device not mounted to the locomotive; the locomotive controller in communication with the plurality of access control devices, the brake system and the power system and configured to: display the status on the mobile device; and if the status is the blue flag status, prevent power from being applied to the wheel assembly and block release of the brake from the wheel assembly.