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公开(公告)号：US10519881B2
公开(公告)日：2019-12-31
申请号：US15953854
申请日：2018-04-16
Applicant: GM Global Technology Operations LLC
Inventor： Giuseppe Conte , Vincenzo Alfieri , Francesco Castorina , Stefano Sarinelli
Abstract: Embodiments of the present invention described herein include a control system for a vehicle. The control system includes a control module that dynamically computes a first power value (PC) to be generated by a compressor based on an estimation model of the compressor. The control system further includes a power term estimator module that dynamically computes a second power value (PU) based on a measured compressor pressure ratio (βcmeas) of the compressor. The control module further computes an amount of power to be generated by an engine (Ptdes) by adding the first power value and the second power value. The control module further adjusts an actuator position to generate the amount of power to be generated.
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公开(公告)号：US20150113981A1
公开(公告)日：2015-04-30
申请号：US14067430
申请日：2013-10-30
Applicant: GM Global Technology Operations LLC
Inventor： Chad E. Marlett , Francesco Castorina , Joseph Zammit , Yun Xiao
IPC: F02B37/12
CPC classification number: F02B37/12 , F02B2039/164 , F02D41/0007 , F02D41/18 , F02D41/2448 , F02D2200/0406 , F02D2200/0414 , Y02T10/144
Abstract: A turbocharger controller includes a turbocharger compressor temperature module having a compressor inlet air temperature input, and a turbocharger compressor pressure module including a compressor inlet pressure input and a compressor outlet pressure input. A memory module includes a compressor outlet temperature calibration map and a compressor pressure ratio look-up table. A turbocharger boost pressure ratio control module is operatively connected to the turbocharger compressor temperature module, the turbocharger compressor pressure module, and the memory module. The turbocharger boost pressure ratio control module is configured to selectively compare compressor outlet pressure and compressor inlet pressure with values in the compressor ratio look-up table to determine a turbocharger boost pressure set point establishing a desired compressor outlet temperature.
Abstract translation: 涡轮增压器控制器包括具有压缩机入口空气温度输入的涡轮增压器压缩机温度模块和包括压缩机入口压力输入和压缩机出口压力输入的涡轮增压器压缩机压力模块。 存储器模块包括压缩机出口温度校准图和压缩机压力比查找表。 涡轮增压器增压压力比控制模块可操作地连接到涡轮增压器压缩机温度模块，涡轮增压器压缩机压力模块和存储器模块。 涡轮增压器增压压力比控制模块被配置为选择性地将压缩机出口压力和压缩机入口压力与压缩机比率查找表中的值进行比较，以确定建立所需压缩机出口温度的涡轮增压器增压压力设定点。
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公开(公告)号：US09657634B2
公开(公告)日：2017-05-23
申请号：US14067430
申请日：2013-10-30
Applicant: GM Global Technology Operations LLC
Inventor： Chad E. Marlett , Francesco Castorina , Joseph Zammit , Yun Xiao
CPC classification number: F02B37/12 , F02B2039/164 , F02D41/0007 , F02D41/18 , F02D41/2448 , F02D2200/0406 , F02D2200/0414 , Y02T10/144
Abstract: A turbocharger controller includes a turbocharger compressor temperature module having a compressor inlet air temperature input, and a turbocharger compressor pressure module including a compressor inlet pressure input and a compressor outlet pressure input. A memory module includes a compressor outlet temperature calibration map and a compressor pressure ratio look-up table. A turbocharger boost pressure ratio control module is operatively connected to the turbocharger compressor temperature module, the turbocharger compressor pressure module, and the memory module. The turbocharger boost pressure ratio control module is configured to selectively compare compressor outlet pressure and compressor inlet pressure with values in the compressor ratio look-up table to determine a turbocharger boost pressure set point establishing a desired compressor outlet temperature.
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公开(公告)号：US09175617B2
公开(公告)日：2015-11-03
申请号：US13961942
申请日：2013-08-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Luca Scavone , Simone Barbero , Francesco Castorina , Francesco Cianflone , Andrea Di Giovanni , Andrea De Vito
CPC classification number: F02D31/001 , F02B37/24 , F02D41/0005 , F02D41/0007 , F02D41/12 , F02D41/1446 , F02D41/1448 , F02D41/145 , F02D2041/1433 , Y02T10/144 , Y02T10/42
Abstract: A system and method can control exhaust braking in a vehicle. The vehicle includes an engine system. The engine system includes internal combustion engine, an intake manifold, a control module, an exhaust system, and a variable geometry turbocharger (VGT) having a turbine. The turbine includes turbine blades and vanes movable with respect to the turbine blades. The method includes the following: (a) receiving an exhaust brake torque request; (b) determining target pumping losses in the internal combustion engine based on the exhaust brake torque request; (c) determining a target exhaust gas pressure within the exhaust system based on the target pumping losses; and (d) determining a target vane position of the vanes based on the target exhaust gas pressure, wherein the target vane position yields an exhaust brake torque in accordance with the exhaust brake torque request.
Abstract translation: 一种系统和方法可以控制车辆中的排气制动。 车辆包括发动机系统。 发动机系统包括具有涡轮机的内燃机，进气歧管，控制模块，排气系统和可变几何涡轮增压器（VGT）。 涡轮机包括相对于涡轮叶片可移动的涡轮叶片和叶片。 该方法包括以下步骤：（a）接收排气制动转矩请求; （b）基于所述排气制动转矩要求确定所述内燃机中的目标泵送损失; （c）基于目标泵送损失来确定排气系统内的目标废气压力; 以及（d）基于所述目标排气压力确定所述叶片的目标叶片位置，其中所述目标叶片位置根据所述排气制动转矩请求产生排气制动转矩。
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公开(公告)号：US10557406B2
公开(公告)日：2020-02-11
申请号：US15595083
申请日：2017-05-15
Applicant: GM Global Technology Operations LLC
Inventor： Serena Tordin , Fabrizio Ramolivo , Francesco Castorina
Abstract: A system according to the present disclosure includes a coolant flow request module and a pump control module. The coolant flow request module is configured to determine a coolant flow request based on at least one of (i) an outlet temperature of a compressor disposed upstream of a heat exchanger of a charge air cooler, and (ii) an efficiency of a radiator of the charge air cooler. The pump control module is configured to control an output of a pump based on the coolant flow request. The pump circulates coolant through the radiator of the charge air cooler and through the heat exchanger of the charge air cooler when the pump is activated. The heat exchanger is disposed upstream of an intake manifold of an engine.
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Patent Agency Ranking
公开(公告)号：US20200088082A1
公开(公告)日：2020-03-19
申请号：US16130493
申请日：2018-09-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Serena Tordin , Fabio Sessa , Lorenzo Pataccia , Francesco Castorina
Abstract: An exhaust system for a vehicle and method of operating the exhaust system. The exhaust system comprises an internal combustion engine, an exhaust throttle valve, and a pressure sensor. The method comprises the steps of: outputting an exhaust gas from the internal combustion engine; determining a flow factor for the exhaust throttle valve; conducting a diagnostic pressure analysis using one or more pressure readings from the pressure sensor; estimating a stuck position for the exhaust throttle valve; determining a flow limit based on the estimated stuck position; and mitigating one or more exhaust system effects based on the flow limit and/or the estimated stuck position.
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公开(公告)号：US20190316533A1
公开(公告)日：2019-10-17
申请号：US15953854
申请日：2018-04-16
Applicant: GM Global Technology Operations LLC
Inventor： Giuseppe Conte , Vincenzo Alfieri , Francesco Castorina , Stefano Sarinelli
Abstract: Embodiments of the present invention described herein include a control system for a vehicle. The control system includes a control module that dynamically computes a first power value (PC) to be generated by a compressor based on an estimation model of the compressor. The control system further includes a power term estimator module that dynamically computes a second power value (PU) based on a measured compressor pressure ratio (βcmeas) of the compressor. The control module further computes an amount of power to be generated by an engine (Ptdes) by adding the first power value and the second power value. The control module further adjusts an actuator position to generate the amount of power to be generated.
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公开(公告)号：US10190521B2
公开(公告)日：2019-01-29
申请号：US15608501
申请日：2017-05-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Giorgio Sticchi , Francesco Castorina , Andrea Dutto
Abstract: A method of operating an internal combustion engine having a turbocharger for pressurizing an intake airflow and an after-treatment (AT) system including an AT device for reducing nitrogen oxides (NOX) concentration in the engine exhaust gas. The method includes operating the engine with a variable high-pressure exhaust gas recirculation (EGR) and low-pressure EGR split in the intake airflow. The method also includes determining the NOX concentration in the exhaust gas and determining a current high-pressure EGR to low-pressure EGR split in the intake airflow. The method additionally includes determining an EGR corrective factor using the determined current high-pressure EGR to low-pressure EGR split and applying the determined EGR corrective factor to the determined NOX concentration to generate a corrected NOX concentration. Furthermore, the method includes regulating operation of the AT system to treat the exhaust gas via the AT device in response to the generated corrected NOX concentration.
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公开(公告)号：US20180347495A1
公开(公告)日：2018-12-06
申请号：US15608501
申请日：2017-05-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Giorgio Sticchi , Francesco Castorina , Andrea Dutto
CPC classification number: F02D41/18 , F02B47/08 , F02D29/06 , F02D41/0072 , F02D2041/0075 , F02D2200/0414 , F02D2200/0806 , Y02T10/144
Abstract: A method of operating an internal combustion engine having a turbocharger for pressurizing an intake airflow and an after-treatment (AT) system including an AT device for reducing nitrogen oxides (NOX) concentration in the engine exhaust gas. The method includes operating the engine with a variable high-pressure exhaust gas recirculation (EGR) and low-pressure EGR split in the intake airflow. The method also includes determining the NOX concentration in the exhaust gas and determining a current high-pressure EGR to low-pressure EGR split in the intake airflow. The method additionally includes determining an EGR corrective factor using the determined current high-pressure EGR to low-pressure EGR split and applying the determined EGR corrective factor to the determined NOX concentration to generate a corrected NOX concentration. Furthermore, the method includes regulating operation of the AT system to treat the exhaust gas via the AT device in response to the generated corrected NOX concentration.
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10.发明授权公开(公告)号：US11067011B2
公开(公告)日：2021-07-20
申请号：US16675361
申请日：2019-11-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Marco Clelio Lucarelli , Vincenzo Alfieri , Francesco Castorina
Abstract: A control module includes a dynamic target selection module configured to receive an intake manifold pressure setpoint and a measured intake manifold pressure, select between the intake manifold pressure setpoint and the measured intake manifold pressure, and output a selected intake manifold pressure setpoint based on the selection. A multivariable control module is configured to receive at least one target setpoint that is based on the selected intake manifold pressure setpoint and control operation of an air charging system of a vehicle based on the at least one target setpoint.
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