-
Patent Agency Ranking
公开(公告)号：US11994083B2
公开(公告)日：2024-05-28
申请号：US17893873
申请日：2022-08-23
Applicant: Caterpillar Inc.
Inventor： Daniel Reese Puckett , Andrew Marrack , Bradley Scott Bashore
CPC classification number: F02D41/3836 , F02D41/2467 , F02D41/365 , F02D41/3845 , F02D2041/224 , F02D2200/0602
Abstract: A fuel system for an internal combustion engine includes a fuel control system having a fueling control unit structured to determine a test point on a tip wear-sensitive region of a fuel injector delivery curve, and store measurements of pressure drops in a pressurized fuel reservoir caused by injections of fuel at the test point. The fueling control unit is further structured to produce an injector health signal based on the stored measurements of pressure drop. Related methodology and control logic for calculation of wear parameters for injection signal duration electronic trimming and prognostic health determinations are also disclosed.
-
公开(公告)号：US10041432B2
公开(公告)日：2018-08-07
申请号：US15401911
申请日：2017-01-09
Applicant: Caterpillar Inc.
Inventor： Daniel Reese Puckett , Bradley Scott Bashore , Michael Edward Sattler , Michael Scott Marchionda , Sasidhar Rayasam , Kranti Kumar Nellutla
CPC classification number: F02D41/3082 , F02D41/042 , F02D41/3836 , F02D41/3863 , F02D2041/224 , F02D2041/225 , F02D2200/0602 , F02D2200/101 , F02M55/025 , F02M63/0265 , F02M2200/247
Abstract: A fuel system is disclosed for use with an engine. The fuel system may have a plurality of fuel injectors, a common rail fluidly, a pump, and an outlet valve associated with the pump. The fuel system may also have a sensor configured to generate a signal indicative of a pressure of fuel in the common rail, and an electronic control module. The electronic control module may be configured to detect a zero-fueling condition, to determine a first pressure decay rate of the common rail during the zero-fueling condition while the pump is rotating, and to determine a second pressure decay rate of the common rail during the zero-fueling condition after the pump has stopped rotating. The electronic control module may also be configured to selectively generate a diagnostic flag associated with wear of the outlet valve based on the first and second pressure decay rates.
-
公开(公告)号：US20240068424A1
公开(公告)日：2024-02-29
申请号：US17893873
申请日：2022-08-23
Applicant: Caterpillar Inc.
Inventor： Daniel Reese Puckett , Andrew Marrack , Bradley Scott Bashore
CPC classification number: F02D41/3845 , F02D41/365
Abstract: A fuel system for an internal combustion engine includes a fuel control system having a fueling control unit structured to determine a test point on a tip wear-sensitive region of a fuel injector delivery curve, and store measurements of pressure drops in a pressurized fuel reservoir caused by injections of fuel at the test point. The fueling control unit is further structured to produce an injector health signal based on the stored measurements of pressure drop. Related methodology and control logic for calculation of wear parameters for injection signal duration electronic trimming and prognostic health determinations are also disclosed.
-
公开(公告)号：US09394848B2
公开(公告)日：2016-07-19
申请号：US14153485
申请日：2014-01-13
Applicant: Caterpillar Inc.
Inventor： Daniel Reese Puckett , Bryan Moore , Michael Edward Sattler , Prasanna Mohan Ballal , Bradley Scott Bashore , Kranti Kumar Nellutla
CPC classification number: F02M47/027 , F02D41/20 , F02D41/3082 , F02D41/3836 , F02D2041/2044 , F02D2041/2051 , F02D2041/2055 , F02D2041/2058 , F02M51/0625 , F02M63/0022 , F02M63/0075
Abstract: Fuel is injected by energizing a solenoid of a fuel injector for an on-time that terminates at a first end-of-current timing. An end-of-current trim is determined at least in part by estimating a duration between an induced current event in a circuit of the solenoid and a valve/armature interaction event. An induced current event occurs when an armature abruptly stops, and a valve/armature interaction event occurs when the armature couples with or de-couples from the valve member. Fuel is injected in a subsequent injection event by adjusting the end-of-current timing by the end-of-current trim.
Abstract translation: 通过为燃料喷射器的螺线管通电导通时间来燃料燃料，该导通时间终止于第一个电流结束定时。 至少部分地通过估计螺线管的电路中的感应电流事件与阀/电枢相互作用事件之间的持续时间来确定电流终止。 当电枢突然停止时发生感应电流事件，并且当电枢与阀构件耦合或解耦时，发生阀/电枢相互作用事件。 通过将电流终止时间调整为电流截止电流，在后续的注入事件中注入燃料。
-
公开(公告)号：US20150198110A1
公开(公告)日：2015-07-16
申请号：US14153485
申请日：2014-01-13
Applicant: Caterpillar, Inc.
Inventor： Daniel Reese Puckett , Bryan Moore , Michael Edward Sattler , Prasanna Mohan Ballal , Bradley Scott Bashore , Kranti Kumar Nellutla
CPC classification number: F02M47/027 , F02D41/20 , F02D41/3082 , F02D41/3836 , F02D2041/2044 , F02D2041/2051 , F02D2041/2055 , F02D2041/2058 , F02M51/0625 , F02M63/0022 , F02M63/0075
Abstract: Fuel is injected by energizing a solenoid of a fuel injector for an on-time that terminates at a first end-of-current timing. An end-of-current trim is determined at least in part by estimating a duration between an induced current event in a circuit of the solenoid and a valve/armature interaction event. An induced current event occurs when an armature abruptly stops, and a valve/armature interaction event occurs when the armature couples with or de-couples from the valve member. Fuel is injected in a subsequent injection event by adjusting the end-of-current timing by the end-of-current trim.
Abstract translation: 通过为燃料喷射器的螺线管通电导通时间来燃料燃料，该导通时间终止于第一个电流结束定时。 至少部分地通过估计螺线管的电路中的感应电流事件与阀/电枢相互作用事件之间的持续时间来确定电流终止。 当电枢突然停止时发生感应电流事件，并且当电枢与阀构件耦合或解耦时，发生阀/电枢相互作用事件。 通过将电流终止时间调整为电流截止电流，在后续的注入事件中注入燃料。
-
-
-
-
Search Results
5
records
(took 0.01 seconds)
