Control arrangement for vehicles having a hydrostatic auxiliary drive

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11441677
APP PUB NO 20130013158A1
SERIAL NO

12996765

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention relates to a control arrangement for vehicles having a hydrostatic auxiliary drive for one or more axles, in particular for motor graders, having a drive engine, driven rear wheels coupled to the drive engine, further wheels which can be activated by associated hydraulic motors and can be operated by a hydraulic pump coupled to the drive engine and which has an adjustable feed volume, wherein each wheel is connected to a hydraulic motor without a clutch. The hydraulic pump and the hydraulic motors can be activated electrically and adjusted in a continuously variable fashion and the hydraulic pump is connected directly, without valves, to the hydraulic motors in parallel by hydraulic lines. The control device controls the respective displacement volume of the hydraulic motors only as a function of the rotational speed signals of the sensors.

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Patent Owner(s)

Patent OwnerAddress
CNH INDUSTRIAL BAUMASCHINEN GMBH13581 BERLIN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lautner, Erik Potsdam, DE 4 33
Neubert, Thomas Hirschstein, DE 9 54
Weber, Jürgen Dresden, DE 46 125

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