公开(公告)号：US20180281821A1

公开(公告)日：2018-10-04

申请号：US15473298

申请日：2017-03-29

Applicant: Progress Rail Locomotive Inc.

Inventor： Robert Spenk ,  Sajid Nanlawala

IPC: B61C17/06 ,  H02J7/00

Abstract: A power system for a locomotive includes a battery configured to provide electrical power to at least one component of the locomotive, an engine monitor for detecting whether an engine of the locomotive has been shut down, and an automatic power saver operatively associated with the battery. The automatic power saver includes a controller operatively associated with the engine monitor and configured to receive an input signal from the engine monitor, when the engine is shut down, and generate an output signal if the input signal is received. The automatic power saver includes a battery disconnect relay operably connecting the battery to the at least one component of the locomotive and automatically disconnecting the battery from the at least one component of the locomotive in response to expiration of a predetermined time period following receipt of the output signal from the controller.