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US Patent 11773970 Hydromechanical transmission and control method

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Contents

Is a
Patent
Patent

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
11773970
Patent Inventor Names
Claudio Angeloni
Lorenzo Dalla Palma
Date of Patent
October 3, 2023
Patent Application Number
17448982
Date Filed
September 27, 2021
Patent Citations
‌
US Patent 8858392 Proportional parking brake control in cooperation with operation of a continuously variable transmission
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US Patent 7815545 Hydraulic control system for automatic transmission
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US Patent 8986162 Shuttle shifting for a continuously variable transmission
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US Patent 7344473 Hydraulic transmission vehicle
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US Patent 7354368 Method and means for shifting a hydromechanical transmission
Patent Primary Examiner
‌
Tisha D Lewis
CPC Code
‌
F16H 61/47
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F16H 61/472
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F16H 2061/205
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F16H 2312/04
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F16H 39/00
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F16H 47/04
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F16H 59/36
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F16H 61/0204
...
Patent abstract

Methods and systems for a hydromechanical transmission in a vehicle are provided herein. In one example, the transmission system includes a hydrostatic assembly with a hydraulic pump in fluidic communication with a hydraulic motor. The transmission system further includes a controller configured to selectively transition between a torque control mode and a speed control mode of the hydrostatic assembly while the vehicle is on a slope.

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