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11.发明申请公开(公告)号：US20200049060A1
公开(公告)日：2020-02-13
申请号：US16102173
申请日：2018-08-13
Applicant: GM Global Technology Operations LLC
Inventor： Francesco Acquaviva , Roberto Romanato
Abstract: An engine system includes an internal combustion engine including an intake manifold having an inlet, variable geometry turbocharger (VGT) including a mechanical compressor having a mechanical compressor outlet fluidically connected to the intake manifold and a turbine, and an electric compressor including an electric compressor outlet fluidically connected to the intake manifold. A first sensor is arranged to detect a first fluid pressure value at the mechanical compressor outlet. A second sensor is arranged to detect a second fluid pressure value at the inlet of the intake manifold. A controller is operatively connected to first sensor and the second sensor. The controller is operable to adjust operation of at least one of the VGT and the electric compressor when one of the first fluid pressure value and the second fluid pressure value reaches a selected value.
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公开(公告)号：US10557428B2
公开(公告)日：2020-02-11
申请号：US15989232
申请日：2018-05-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Romanato
Abstract: Systems and methods are provided for controlling an aftertreatment system of a vehicle. A system operating mode is determined for an aftertreatment device having an electrical heating element. A weighting coefficient is set based on the determined system operating mode. An optimized electrical heat input and an optimized engine heat input are determined based on the weighting coefficient. The aftertreatment device is then controlled to a target temperature based on the optimized electrical heat input and the optimized engine heat input.
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公开(公告)号：US10465602B2
公开(公告)日：2019-11-05
申请号：US15945246
申请日：2018-04-04
Applicant: GM Global Technology Operations LLC
Inventor： Flavia Duma , Roberto Romanato , Paolo Pasero
Abstract: A hybrid powertrain includes an internal combustion engine having a crankshaft rotating at an engine speed, and a variable-geometry turbocharger (VGT) having a compressor and a turbine. The turbine has turbine vanes, and is configured to rotate in response to exhaust flow from the engine to thereby rotate the compressor. An electric machine is configured to selectively deliver motor torque to the crankshaft upon completion of a predetermined operating mode of the powertrain. The engine and electric machine have a corresponding speed that is responsive to acceleration and braking requests. A controller executes a method in which the controller coordinates vane position of the turbine vanes with the motor torque of the electric machine in response to engine speed, doing so during a zero pedal maneuver in which the acceleration and braking requests are both zero.
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公开(公告)号：US10480370B2
公开(公告)日：2019-11-19
申请号：US15682629
申请日：2017-08-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Romanato
Abstract: Methods and apparatuses are provided for controlling an electrically-heated catalyst system of a vehicle. A method includes that a power request is received. The method includes determining whether to use a high power voltage net or a low power voltage net based upon the received power request. The electrically-heated catalyst system is controlled using the determined high power voltage net or the low power voltage net.
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Patent Agency Ranking
公开(公告)号：US10288017B1
公开(公告)日：2019-05-14
申请号：US15793316
申请日：2017-10-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Romanato
Abstract: Described herein is a system and method of controlling an emissions control system for treating exhaust gas in a motor vehicle having an internal combustion engine. The emissions control system includes an electric diesel oxidation catalyst (eDOC) device having an electric heating element, disposed in a stream of the exhaust gas, a temperature sensor disposed at the eDOC device and configured to detect a temperature of the exhaust gas, and a controller that is configured to perform a model based control of the eDOC device based on a dual nested closed loop topology having an inner closed loop control and an outer closed loop control. The inner closed loop control is configured to control the power required for the eDOC device and outer closed loop control is configured to control the temperature of the eDOC device.
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公开(公告)号：US10167795B2
公开(公告)日：2019-01-01
申请号：US15479603
申请日：2017-04-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Lorenzo Disaro′ , Roberto Romanato
Abstract: Provided are methods for warming up a vehicle exhaust treatment system prior to an engine start, wherein the vehicle includes an internal combustion engine (ICE), a supercharger capable of delivering air to an ICE intake, an exhaust gas treatment system including an exhaust gas treatment device and an upstream electric heating device and capable of accepting exhaust gas from the ICE, and optionally a turbocharger having a turbine in fluid communication with the exhaust gas treatment system. Methods include establishing fluid communication between the supercharger and the exhaust gas treatment system, engaging the supercharger to communicate air to the exhaust gas treatment system via the supercharger, and engaging the heating device. The method can further comprise reducing turbine resistance by reducing the power position of the turbine or opening a wastegate. The methods can further include first satisfying a start condition, and/or subsequently detecting a termination condition.
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公开(公告)号：US09567966B2
公开(公告)日：2017-02-14
申请号：US14514159
申请日：2014-10-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Romanato
CPC classification number: F02N11/0837 , F02N2200/0801 , F02N2200/0805 , F02N2200/0808 , F02N2200/124 , Y02T10/48
Abstract: The present disclosure provides a method of controlling an automatic engine stop of an automotive system, during a coasting phase. A dynamic speed threshold is calculated as a minimum value of a plurality of dynamic speed values. Each dynamic speed value is calculated as a function of an automotive system parameter such as a steering wheel angle, a steering wheel angle rate, a wheel speed difference, an antilock braking system status, or an electronic stability control status (p5) and/or a road condition such as road grade. The automatic engine stop is enabled when a vehicle speed is lower than the dynamic speed threshold.
Abstract translation: 本公开提供了一种在惯性阶段期间控制汽车系统的自动发动机停止的方法。 动态速度阈值被计算为多个动态速度值的最小值。 每个动态速度值根据汽车系统参数如方向盘角度，方向盘角度速度，车轮速度差，防抱死制动系统状态或电子稳定性控制状态（p5）和/或 道路等级的道路状况。 当车速低于动态速度阈值时，自动发动机停止被使能。
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公开(公告)号：US20150106000A1
公开(公告)日：2015-04-16
申请号：US14514159
申请日：2014-10-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Romanato
CPC classification number: F02N11/0837 , F02N2200/0801 , F02N2200/0805 , F02N2200/0808 , F02N2200/124 , Y02T10/48
Abstract: The present disclosure provides a method of controlling an automatic engine stop of an automotive system, during a coasting phase. A dynamic speed threshold is calculated as a minimum value of a plurality of dynamic speed values. Each dynamic speed value is calculated as a function of an automotive system parameter such as a steering wheel angle, a steering wheel angle rate, a wheel speed difference, an antilock braking system status, or an electronic stability control status (p5) and/or a road condition such as road grade. The automatic engine stop is enabled when a vehicle speed is lower than the dynamic speed threshold.
Abstract translation: 本公开提供了一种在惯性阶段期间控制汽车系统的自动发动机停止的方法。 动态速度阈值被计算为多个动态速度值的最小值。 每个动态速度值根据汽车系统参数如方向盘角度，方向盘角度速度，车轮速度差，防抱死制动系统状态或电子稳定性控制状态（p5）和/或 道路等级的道路状况。 当车速低于动态速度阈值时，自动发动机停止被使能。
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19.发明申请公开(公告)号：US20150019079A1
公开(公告)日：2015-01-15
申请号：US14321502
申请日：2014-07-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Roberto Romanato
CPC classification number: F02N11/0818 , B60W10/06 , B60W10/20 , F02N11/0822 , F02N2200/062 , F02N2200/0801 , F02N2200/0808 , F02N2200/104 , Y02T10/48
Abstract: A method of inhibiting an automatic engine stop in an automotive system is disclosed. The automotive system includes a controller for automatically stopping and starting an internal combustion engine, and an electric steering system. An automatic engine stop is inhibited if a supply current (Isuppl) for the electric steering system or if a change of the steering angle is detected during a steering maneuver.
Abstract translation: 公开了一种在汽车系统中抑制自动发动机停止的方法。 汽车系统包括用于自动停止和启动内燃机的控制器和电动转向系统。 如果在转向操纵中检测到电动转向系统的供电电流（Isuppl）或转向角的改变，则禁止自动发动机停止。
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