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公开(公告)号：US20150217761A1
公开(公告)日：2015-08-06
申请号：US14173189
申请日：2014-02-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony Christman , Karl Andrew Sime
CPC classification number: B60W20/40 , B60K6/485 , B60W20/17 , B60W2510/0685 , B60W2510/083 , B60W2510/244 , F02N11/006 , F02N11/04 , F02N11/0814 , F02N11/0825 , F02N11/0855 , F02N11/0862 , F02N15/02 , F02N2011/0888 , F02N2011/0896 , F02N2200/021 , F02N2200/061 , Y02T10/48 , Y02T10/6208 , Y02T10/6226 , Y02T10/6282
Abstract: A vehicle includes an engine, a transmission, and an electrical system. The electrical system has an auxiliary starter motor connected to a crankshaft of the engine, a high-voltage motor generator unit (MGU) connected to the crankshaft, and a controller. Execution of instructions by a processor causes the controller to determine a set of powertrain conditions in response to a requested autostart of the engine, e.g., state of charge and/or power limits of a high-voltage energy storage system (HV-ESS), torque limits of the MGU, and/or a crank angle of the engine. The controller determines whether the requested autostart may not succeed relative to a time or noise standard using the set of powertrain conditions, and transmits an autostart command to the MGU when the requested autostart may succeed. The controller transmits the autostart command to the auxiliary starter motor when the requested autostart will not succeed.
Abstract translation: 车辆包括发动机，变速器和电气系统。 电气系统具有连接到发动机的曲轴的辅助起动电动机，连接到曲轴的高压电动发电机单元（MGU）和控制器。 执行处理器的指令使得控制器响应于所要求的发动机的自动启动来确定一组动力系条件，例如高压储能系统（HV-ESS）的充电状态和/或功率限制， MGU的扭矩极限和/或发动机的曲柄角。 控制器使用该组动力系条件来确定所请求的自动启动是否相对于时间或噪声标准不成功，并且当请求的自动启动可能成功时，将自动启动命令发送到MGU。 当所请求的自动启动不成功时，控制器将自动启动命令发送到辅助启动电机。
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公开(公告)号：US09376104B2
公开(公告)日：2016-06-28
申请号：US14173189
申请日：2014-02-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Anthony Christman , Karl Andrew Sime
CPC classification number: B60W20/40 , B60K6/485 , B60W20/17 , B60W2510/0685 , B60W2510/083 , B60W2510/244 , F02N11/006 , F02N11/04 , F02N11/0814 , F02N11/0825 , F02N11/0855 , F02N11/0862 , F02N15/02 , F02N2011/0888 , F02N2011/0896 , F02N2200/021 , F02N2200/061 , Y02T10/48 , Y02T10/6208 , Y02T10/6226 , Y02T10/6282
Abstract: A vehicle includes an engine, a transmission, and an electrical system. The electrical system has an auxiliary starter motor connected to a crankshaft of the engine, a high-voltage motor generator unit (MGU) connected to the crankshaft, and a controller. Execution of instructions by a processor causes the controller to determine a set of powertrain conditions in response to a requested autostart of the engine, e.g., state of charge and/or power limits of a high-voltage energy storage system (HV-ESS), torque limits of the MGU, and/or a crank angle of the engine. The controller determines whether the requested autostart may not succeed relative to a time or noise standard using the set of powertrain conditions, and transmits an autostart command to the MGU when the requested autostart may succeed. The controller transmits the autostart command to the auxiliary starter motor when the requested autostart will not succeed.
Abstract translation: 车辆包括发动机，变速器和电气系统。 电气系统具有连接到发动机的曲轴的辅助起动电动机，连接到曲轴的高压电动发电机单元（MGU）和控制器。 执行处理器的指令使得控制器响应于所要求的发动机的自动启动来确定一组动力系条件，例如高压储能系统（HV-ESS）的充电状态和/或功率限制， MGU的扭矩极限和/或发动机的曲柄角。 控制器使用该组动力系条件来确定所请求的自动启动是否相对于时间或噪声标准不成功，并且当请求的自动启动可能成功时，将自动启动命令发送到MGU。 当所请求的自动启动不成功时，控制器将自动启动命令发送到辅助启动电机。
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公开(公告)号：US09829090B2
公开(公告)日：2017-11-28
申请号：US14633533
申请日：2015-02-27
Applicant: GM Global Technology Operations LLC
Inventor： Randall B. Dlugoss , Karl Andrew Sime
CPC classification number: F16H61/0025 , B60W20/40 , B60W30/181 , B60W30/192 , B60W2030/206 , F16H61/0021 , F16H2312/14 , F16H2312/20
Abstract: A regulator valve regulates pressure of transmission fluid applied to a clutch of a transmission and a flow rate of the transmission fluid from the regulator valve to a transmission fluid sump. A transmission fluid pump is driven by an engine of the vehicle. A control module, while an ignition system of the vehicle is ON, selectively shuts down the engine of the vehicle for an auto-stop event. A target pressure module, before an engine speed reaches zero for the auto-stop event, increases a target value of a pressure of the transmission fluid at an output of the transmission fluid pump. A regulator control module, before the engine speed reaches zero for the auto-stop event and based on the increase in the target value of the pressure, adjusts the regulator valve to increase the pressure of the transmission fluid at the output of the transmission fluid pump.
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