-
公开(公告)号：US10048228B2
公开(公告)日：2018-08-14
申请号：US15288930
申请日：2016-10-07
Applicant: CUMMINS INC.
Inventor： Donald J. Benson , David M. Carey
IPC: G01N29/036 , G01N33/22
Abstract: Diagnostic systems including a pressure sensor, a determiner in communication with the pressure sensor, wherein the determiner is structured to estimate a sonic speed of a fuel based on identification of a fundamental oscillation frequency are disclosed. Also disclosed are diagnostic methods comprising receiving, by a pressure interpreter, a pressure signal, determining, by a determiner in communication with the pressure interpreter, a fundamental frequency of oscillation of the pressure signal, and determining, by the determiner, a sonic speed of a fuel based on the fundamental frequency of oscillation.
-
12.发明授权公开(公告)号：US09903306B2
公开(公告)日：2018-02-27
申请号：US13763514
申请日：2013-02-08
Applicant: CUMMINS INC.
Inventor： David M. Carey , Paul V. Moonjelly
CPC classification number: F02D41/3845 , F02D41/221 , F02D2200/0602 , F02D2200/0616 , F02M65/001
Abstract: A system and method for measuring fuel pressure decreases in a fuel accumulator caused by a fuel injector of an internal combustion engine is provided. The system includes the ability to stop a fuel flow to a fuel accumulator of the engine. Pressure signals are transmitted to a control system of the engine until the fuel pressure in the fuel accumulator drops by a predetermined amount, at which time fuel flow is re-enabled. The pressure signals are then analyzed to determine the amount or quantity of fuel delivered by each fuel injector. The system and method maintain engine and emissions performance by limiting the amount of fuel pressure decrease in the fuel accumulator.
-
13.发明授权System and method for estimating high-pressure fuel leakage in a common rail fuel system 有权用于估计共轨燃油系统中的高压燃油泄漏的系统和方法公开(公告)号：US09470167B2
公开(公告)日：2016-10-18
申请号：US15004637
申请日：2016-01-22
Applicant: CUMMINS INC.
Inventor： David M. Carey , Donald J. Benson , Sanjay Manglam , Paul V. Moonjelly
CPC classification number: F02D41/22 , F02D41/3845 , F02D2041/225 , F02D2041/286 , F02D2200/0602 , F02D2200/0606 , F02M47/02 , F02M55/025 , F02M65/006
Abstract: A system and method for measuring fuel pressure decreases in a fuel accumulator of an internal combustion engine is provided. The system includes the ability to stop a fuel flow to a fuel accumulator of the engine. Pressure signals are transmitted to a control system of the engine until the fuel pressure in the fuel accumulator drops by a predetermined amount, at which time fuel flow is re-enabled. The pressure signals are then analyzed to determine the amount or quantity of fuel delivered by each fuel injector. The system and method maintain engine and emissions performance by limiting the amount of fuel pressure decrease in the fuel accumulator.
Abstract translation: 提供了一种用于在内燃机的燃料蓄积器中测量燃料压力的系统和方法。 该系统包括停止向发动机的燃料蓄积器的燃料流动的能力。 压力信号传递到发动机的控制系统，直到燃料蓄积器中的燃料压力下降预定量，此时燃料流被重新启用。 然后分析压力信号以确定由每个燃料喷射器输送的燃料的量或数量。 该系统和方法通过限制燃料蓄压器中的燃料压力降低的量来维持发动机和排放性能。
-
14.发明申请公开(公告)号：US20160138545A1
公开(公告)日：2016-05-19
申请号：US15004637
申请日：2016-01-22
Applicant: CUMMINS INC.
Inventor： David M. Carey , Donald J. Benson , Sanjay Manglam , Paul V. Moonjelly
CPC classification number: F02D41/22 , F02D41/3845 , F02D2041/225 , F02D2041/286 , F02D2200/0602 , F02D2200/0606 , F02M47/02 , F02M55/025 , F02M65/006
Abstract: A system and method for measuring fuel pressure decreases in a fuel accumulator of an internal combustion engine is provided. The system includes the ability to stop a fuel flow to a fuel accumulator of the engine. Pressure signals are transmitted to a control system of the engine until the fuel pressure in the fuel accumulator drops by a predetermined amount, at which time fuel flow is re-enabled. The pressure signals are then analyzed to determine the amount or quantity of fuel delivered by each fuel injector. The system and method maintain engine and emissions performance by limiting the amount of fuel pressure decrease in the fuel accumulator.
-
-
-
Search Results
14
records
(took 0.014 seconds)
