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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：US20150040859A1
公开(公告)日：2015-02-12
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
IPC: F02D31/00
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：US09976472B2
公开(公告)日：2018-05-22
申请号：US15019469
申请日：2016-02-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michele Bilancia , Simone Barbero , Simone Bambagioni , Salvatore Mafrici
CPC classification number: F01P7/167 , F01P7/164 , F01P2007/146 , F01P2025/62 , F01P2025/66
Abstract: A method of operating a cooling circuit of an internal combustion engine is disclosed. The engine is equipped with an engine head, and the cooling circuit includes a pump configured to deliver a variable flow of coolant through the cooling circuit. A coolant flow rate to be delivered by the pump is calculated as a function of an engine load, an engine speed and a desired engine head temperature, and the pump is operated to deliver the calculated coolant flow rate.
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