Mixer drum drive with variable displacement motor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11858171
APP PUB NO 20210354329A1
SERIAL NO

17388809

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A drum drive system includes a controller configured to selectively control an engine, a variable displacement pump, and a variable displacement motor of a vehicle to provide a target drum speed for a drum of the vehicle. To provide the target drum speed, the controller is configured to: (i) initially operate the variable displacement motor at a maximum motor displacement and operate the variable displacement pump at a pump displacement that provides the target drum speed without needing to actively manipulate an engine speed of the engine; (ii) increase the pump displacement and decrease a motor displacement without needing to actively manipulate the engine speed while still providing the target drum speed; and (iii) increase the engine speed in response to the pump displacement reaching a maximum pump displacement and the motor displacement reaching a minimum motor displacement if necessary to maintain the target drum speed.

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Patent Owner(s)

Patent OwnerAddress
OSHKOSH CORPORATIONP O BOX 2566 2307 OREGON STREET OSHKOSH WI 54902-2566

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Andringa, Jeremy Oshkosh, US 41 411
DeVries, Loren G Oshkosh, US 6 45
Hou, Yanming Oshkosh, US 39 982
Zhang, Rongjun Oshkosh, US 33 1792

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