公开(公告)号：US20150198507A1

公开(公告)日：2015-07-16

申请号：US14156136

申请日：2014-01-15

Applicant: Caterpillar Inc.

Inventor： David Arthur Mork ,  Biagio Ciarla ,  Wendell Dean Stahl ,  Daniel Todd Mather

IPC: G01M17/06 ,  B62D5/30

CPC classification number: G01M17/06 ,  B62D5/06 ,  B62D5/30

Abstract: A method of determining readiness of an emergency steering pump system is provided. The method may include the steps of detecting a startup condition; determining a standby pressure provided by a primary pump and a margin pressure to be provided by a secondary pump; engaging the secondary pump for a predefined duration based on the standby pressure and the margin pressure; and determining readiness based on a cumulative pressure of the standby pressure and the margin pressure as compared to a predefined threshold corresponding to load demand.

Abstract translation: 提供了一种确定紧急转向泵系统的准备状态的方法。 该方法可以包括检测启动条件的步骤; 确定由主泵提供的待机压力和由次级泵提供的裕度压力; 基于所述待机压力和所述裕度压力将所述辅助泵接合预定的持续时间; 以及与对应于负载需求的预定阈值相比，基于待机压力和余量压力的累积压力来确定准备状态。