Optimization of Complex Hydromechanical Transmissions...PPTmall LiU 2008 engelsk Author LiU ER...
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Optimization of Complex Hydromechanical Transmissions Karl Pettersson Fluid and Mechatronic Systems (Flumes) Department of Management and Engineering Linköping University
Transcript of Optimization of Complex Hydromechanical Transmissions...PPTmall LiU 2008 engelsk Author LiU ER...
Optimization of Complex Hydromechanical
Transmissions
Karl Pettersson
Fluid and Mechatronic Systems (Flumes)
Department of Management and Engineering
Linköping University
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Requirements
Steplessly variable torque/speed ratio in a wide range
Kept traction force during gear shifts
High efficiency throughout the speed range
Decoupling of the engine speed from the output speed
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Mechanical Power
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Power-split
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Backwards Calculations
η = 99%
Load
1800 rpm η = 95%
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Mode shift
Full mechanical power transfer
Optimize the energy efficiency by positioning the mode shifts!
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Short Loading Cycle
Load-Carry Cycle
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