Zoomlion Heavy Industry Na, Inc.

Zoomlion Heavy Industry Science and Technology Co., Ltd

Zoomlion Heavy Industry and Science and Technology Co, Ltd.

Robert Dellemann

Shu Wang

Robert Willard

Guy A Moore

A hydraulic lockout lever failure detection system preferably includes a first analog sensor, a second analog sensor, at least one electronic control module (ECU) and a solenoid valve. The voltage output level of the first and second analog sensors is monitored by the ECU. The solenoid valve controls the flow of hydraulic fluid to operate an excavator or other equipment. The operation of the solenoid valve is controlled by the ECU. However, a second ECU may be used to control the operation of the solenoid valve. A hydraulic lockout lever causes the first and second analog sensors to output either a low voltage to indicate a closed position, or to indicate an open position to the ECU. If the first and second analog sensors output a voltage that is above a low set value or above a high set value, a fault is detected.

Hydraulic lockout lever failure detection system

Machine cabin display screen with graphical user interface

Operator interface

Growing community of inventors

Yorkville, WI, United States of America

Robert Dellemann