公开(公告)号：US11338848B2

公开(公告)日：2022-05-24

申请号：US16280752

申请日：2019-02-20

Applicant: Caterpillar Inc.

Inventor： Wendell Dean Stahl ,  Jeremy T. Peterson

IPC: B62D6/00 ,  B62D5/06 ,  G05D1/00 ,  B62D15/02 ,  G05D1/02

Abstract: An electronic control unit (ECU) may receive, from an autonomous vehicle controller, an instruction to set a hydraulic steering actuator, of a vehicle, to a particular machine steering angle setting. The ECU may provide, to a steering controller torque device, a current to set a steering controller, of the vehicle, to a particular steering controller angle that corresponds to the particular machine steering angle setting. The ECU may provide, to a hydraulic control system, a current to set the hydraulic steering actuator to the particular machine steering angle setting.

公开(公告)号：US20200086911A1

公开(公告)日：2020-03-19

申请号：US16131539

申请日：2018-09-14

Applicant: Caterpillar Inc.

Inventor： Wendell Dean Stahl ,  Jeremy T. Peterson ,  Kenneth Marvin Roat ,  Derrick Alexander Kofi Amanor ,  Micheal D. Valerio

IPC: B62D5/06 ,  B62D15/02 ,  B62D5/04 ,  B62D5/00

Abstract: A machine is disclosed. The machine may comprise a steering device configured to move along a steering position range in response to a force applied on the steering device by a machine operator. The steering device may have at least one soft stop position along the steering position range. The machine may further comprise a biasing member mechanically coupled to the steering device and configured to apply an opposing force that opposes movement of the steering device when the steering device is at or beyond the soft stop position. A magnitude of the opposing force may be sufficiently low such that the machine operator can move the steering device past the soft stop position. The machine may further comprise an electronic control device configured to determine the soft stop position based on one or more operation conditions of the machine.

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。