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公开(公告)号：US20190353558A1
公开(公告)日：2019-11-21
申请号：US15984705
申请日：2018-05-21
Applicant: Ford Motor Company
Inventor： David J. Chesney , Roderick Alexander Simpson
Abstract: A method of determining a condition of a component (e.g., valves) of an engine having a manifold air pressure sensor during a cold test includes providing pressurized air to an intake of the engine. The method includes rotating a crankshaft of the engine. The method includes measuring pressures with the manifold air pressure sensor as a function of crankshaft rotational position. The method includes comparing the pressures with a predetermined baseline. The method includes indicating a condition of the component based on the comparison of the pressures with the baseline.
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公开(公告)号：US11644384B2
公开(公告)日：2023-05-09
申请号：US15984705
申请日：2018-05-21
Applicant: Ford Motor Company
Inventor： David J. Chesney , Roderick Alexander Simpson
CPC classification number: G01M15/09 , F01L13/0005 , F02D13/06 , F02D17/02 , F02D41/0087 , F01L2013/001 , F01L2800/14 , F01L2800/18
Abstract: A method of determining a condition of a component (e.g., valves) of an engine having a manifold air pressure sensor during a cold test includes providing pressurized air to an intake of the engine. The method includes rotating a crankshaft of the engine. The method includes measuring pressures with the manifold air pressure sensor as a function of crankshaft rotational position. The method includes comparing the pressures with a predetermined baseline. The method includes indicating a condition of the component based on the comparison of the pressures with the baseline.
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公开(公告)号：US11053908B2
公开(公告)日：2021-07-06
申请号：US15984691
申请日：2018-05-21
Applicant: Ford Motor Company
Inventor： David J. Chesney , Roderick Alexander Simpson
Abstract: A method of verifying a cylinder deactivation mode on an engine is provided. The method can include activating an ignition device in a deactivated cylinder during an exhaust stroke of the deactivated cylinder. The method can include measuring a voltage of the ignition device. The method can include comparing at least one of an amplitude and a timing of a measured spike of the voltage against a baseline voltage spike. The method can include indicating a status of the deactivation mode based on the comparison against the baseline voltage spike.
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4.发明申请公开(公告)号：US20190353135A1
公开(公告)日：2019-11-21
申请号：US15984691
申请日：2018-05-21
Applicant: Ford Motor Company
Inventor： David J. Chesney , Roderick Alexander Simpson
Abstract: A method of verifying a cylinder deactivation mode on an engine is provided. The method can include activating an ignition device in a deactivated cylinder during an exhaust stroke of the deactivated cylinder. The method can include measuring a voltage of the ignition device. The method can include comparing at least one of an amplitude and a timing of a measured spike of the voltage against a baseline voltage spike. The method can include indicating a status of the deactivation mode based on the comparison against the baseline voltage spike.
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