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公开(公告)号：US11542884B2
公开(公告)日：2023-01-03
申请号：US16724992
申请日：2019-12-23
发明人： James A. Goodall , Vignesh Vivek
IPC分类号： F02D41/30
摘要： A system and method of providing real-time calculation of heat flow in an engine. A piston is disposed in a cylinder of an engine block and movable relative to the cylinder in response to combustion inside the cylinder. A temperature of the combustion inside the cylinder, an average temperature of the wall of the cylinder, and a surface area of the wall of the cylinder based on timing of combustion are determined. An estimated temperature of the piston is derived from calculating a heat fraction to the piston in real-time, via a controller, based on the determined temperature of the combustion, the determined average temperature of the wall of the cylinder, and the determined surface area of the wall of the cylinder. A state of the engine is controlled based on the estimated temperature of the piston as derived from the real-time calculation of the heat fraction to the piston.
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公开(公告)号：US09534543B2
公开(公告)日：2017-01-03
申请号：US14219420
申请日：2014-03-19
发明人： James A. Goodall
CPC分类号： F02D17/04 , F02D41/0087 , F02D41/0235 , F02D2200/0804 , F02D2250/08 , F02M25/06
摘要： A system including a DFCO module. The DFCO module is configured to operate in a DFCO mode to deactivate fuel to a cylinder of an engine. A first flow rate module is configured to determine a reaction gas flow rate. An offset module is configured to determine a temperature offset value based on the reaction gas flow rate. A first temperature module is configured to estimate a first temperature of a catalyst of an exhaust system of the engine. A summer is configured to sum the temperature offset value and the first temperature to generate a summation value. A second temperature module configured to estimate a second temperature of the catalyst based on the summation value. A comparison module is configured to perform a first comparison between the second temperature and a threshold and generate an inhibit signal to inhibit operation in the DFCO mode based on the first comparison.
摘要翻译： 包括DFCO模块的系统。 DFCO模块被配置为在DFCO模式下操作以将燃料停用于发动机的气缸。 第一流量模块被配置为确定反应气体流量。 偏移模块被配置为基于反应气体流量来确定温度偏移值。 第一温度模块被配置为估计发动机的排气系统的催化剂的第一温度。 夏天被配置为将温度偏移值和第一温度相加以产生求和值。 第二温度模块，被配置为基于求和值来估计催化剂的第二温度。 比较模块被配置为执行第二温度和阈值之间的第一比较，并且基于第一比较产生禁止信号以禁止DFCO模式中的操作。
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公开(公告)号：US09416741B2
公开(公告)日：2016-08-16
申请号：US14551533
申请日：2014-11-24
发明人： James A. Goodall , Maher El-Jaroudi
CPC分类号： F02D41/0052 , F01N9/005 , F01N2560/06 , F01N2560/08 , F01N2560/14 , F01N2900/12 , F01N2900/1404 , F01N2900/1406 , F01N2900/1602 , F02B37/22 , F02D41/0072 , F02D41/1446 , F02D41/1448 , F02D41/145 , F02D2041/1433 , F02D2200/0812 , F02D2200/703 , F02D2250/34 , F02M26/00 , F02M2026/003 , Y02T10/47
摘要： An output pressure module that sets an output pressure of a first component of an exhaust system of the vehicle equal to one of: an input pressure of a second component that is immediately downstream of the first component in the exhaust system; and ambient air pressure. A pressure drop module determines a pressure drop between an input of the first component and an output of the first component based a temperature of exhaust input to the first component. An input pressure module determines an input pressure of the first component based on a sum of the output pressure of the first component and the pressure drop between the input and the output of the first component. An actuator control module selectively controls at least one engine actuator based on at least one of the input and output pressures of the first component.
摘要翻译： 输出压力模块，其将所述车辆的排气系统的第一部件的输出压力设定为与所述排气系统中的所述第一部件紧密相连的第二部件的输入压力; 和环境空气压力。 压降模块基于输入到第一部件的排气温度来确定第一部件的输入和第一部件的输出之间的压降。 输入压力模块基于第一部件的输出压力和第一部件的输入和输出之间的压降之和来确定第一部件的输入压力。 致动器控制模块基于第一部件的输入和输出压力中的至少一个选择性地控制至少一个发动机致动器。
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公开(公告)号：US20210189993A1
公开(公告)日：2021-06-24
申请号：US16724992
申请日：2019-12-23
发明人： James A. Goodall , Vignesh Vivek
IPC分类号： F02D41/30
摘要： A system and method of providing real-time calculation of heat flow in an engine. A piston is disposed in a cylinder of an engine block and movable relative to the cylinder in response to combustion inside the cylinder. A temperature of the combustion inside the cylinder, an average temperature of the wall of the cylinder, and a surface area of the wall of the cylinder based on timing of combustion are determined. An estimated temperature of the piston is derived from calculating a heat fraction to the piston in real-time, via a controller, based on the determined temperature of the combustion, the determined average temperature of the wall of the cylinder, and the determined surface area of the wall of the cylinder. A state of the engine is controlled based on the estimated temperature of the piston as derived from the real-time calculation of the heat fraction to the piston.
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