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Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 15, 2022
Grant Date -
Jun 10, 2021
app pub date -
Dec 7, 2020
filing date -
Dec 7, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A vehicle includes a pump configured to discharge a fuel by reciprocating a plunger, a rail configured to store the fuel discharged from the pump, and a fuel injection valve configured to inject the fuel supplied from the rail. A controller for the vehicle includes a waveform obtaining unit and a phase shift obtaining unit. The waveform obtaining unit is configured to obtain a waveform of a fuel pressure in the rail as a function of time in a predetermined period. The phase shift obtaining unit is configured to obtain a phase shift based on the waveform obtained by the waveform obtaining unit. The phase shift is an offset between a timing the plunger reciprocated in the pump arrives at a first position and a timing a piston reciprocating in an internal combustion engine arrives at a second position.
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