VALVE TIMING IN ELECTRONICALLY COMMUTATED HYDRAULIC MACHINE
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United States of America Patent
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Issued Date -
Jul 2, 2020
app pub date -
Dec 27, 2019
filing date -
Dec 28, 2018
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Abstract
An electronically commutated hydraulic machine is coupled to a drivetrain. Working chambers of the hydraulic machine are connected to low and high pressure manifold through electronically controlled valves. The phase of opening and closing of the valves has a default. In order to avoid cycle failure due to acceleration events, for example due to backlash in the drivetrain, the phase of opening or closing of the electronically controlled valves is temporarily advanced or retarded from the default timing.
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