Method of limiting flow through accelerometer feedback

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11293168
APP PUB NO 20190264423A1
SERIAL NO

15908574

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A control system for a material handling vehicle has a boom arm connected to a vehicle frame for rotation about the vehicle frame. An actuator is connected to the vehicle frame and the boom arm to cause the boom arm to rotate about the vehicle frame, and an attachment is connected to the boom arm for rotation with respect to the boom arm. The control system includes a controller that is configured to calculate a pre-determined acceleration limit of the attachment, and a sensor that senses acceleration of the attachment and communicate the sensed acceleration to the controller. The controller is configured to compare the pre-determined acceleration limit of the attachment to the sensed acceleration of the attachment and is configured to adjust a control valve to limit flow to the actuator in response to the sensed acceleration of the attachment being above the pre-determined acceleration upper limit.

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Patent Owner(s)

Patent OwnerAddress
DEERE & COMPANYONE JOHN DEERE PLACE MOLINE IL 61265

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Henn, Grant R Dubuque, US 20 30
Kenkel, Aaron R East Dubuque, US 32 94
Lehmann, Doug M Centralia, US 15 50

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