Invention Grant
- Patent Title: Excavation system providing automated stall correction
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Application No.: US14790098Application Date: 2015-07-02
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Publication No.: US09598837B2Publication Date: 2017-03-21
- Inventor: Jeffrey Graham Fletcher , Daniel Aaron Jones , Ricky Kam Ho Chow , Ranishka De Silva Hewavisenthi
- Applicant: Caterpillar Inc.
- Applicant Address: US IL Peoria
- Assignee: Caterpillar Inc.
- Current Assignee: Caterpillar Inc.
- Current Assignee Address: US IL Peoria
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- Main IPC: E02F9/20
- IPC: E02F9/20 ; E02F9/22 ; F15B21/08 ; B60W30/188 ; B60W10/18 ; B60W10/04 ; B60W10/30

Abstract:
An excavation system is disclosed for a machine having a work tool. The excavation system may have first and second actuators configured to move the work tool in first and second directions, at least a first valve configured to regulate fluid flow through the first actuator, and at least a second valve configured to regulate fluid flow through the second actuator. The excavation system may also have at least one sensor to generate a first signal indicative of a performance of the first actuator, and a controller in communication with the at least a first valve, the at least a second valve, and the at least one sensor. The controller may be configured to make a first determination that the first actuator is experiencing a stall condition based on the first signal, and to selectively command neutralization of the powertrain and movement of the second actuator based on the first determination.
Public/Granted literature
- US20170002544A1 EXCAVATION SYSTEM PROVIDING AUTOMATED STALL CORRECTION Public/Granted day:2017-01-05
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