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公开(公告)号：US20160107633A1
公开(公告)日：2016-04-21
申请号：US14518270
申请日：2014-10-20
发明人： Wei LIANG , Rajit JOHRI , Xiaoyong WANG , Mark Steven YAMAZAKI , Ming Lang KUANG , Jeffrey Allen DOERING
摘要： In at least one embodiment, a vehicle powertrain includes an engine and an electric machine mechanically coupled by a clutch. The powertrain also includes a torque converter configured to fluidly couple the electric machine to an output shaft. A controller is programmed to command a rotational speed output of the electric machine to the torque converter based on a predicted torque delivered across the clutch. The controller is further programmed to modify the command based on a difference between the commanded rotational speed output and an actual rotational speed output of the electric machine.
摘要翻译： 在至少一个实施例中，车辆动力系包括发动机和通过离合器机械连接的电机。 动力传动系还包括一个液力变矩器，其配置成将电机流体地耦合到输出轴上。 控制器被编程为基于跨过离合器传递的预测扭矩来将电机的转速输出命令到变矩器。 控制器还被编程为基于指令的转速输出与电机的实际转速输出之间的差异来修改命令。
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2.发明申请METHOD FOR CONTROLLING AN ELECTRIC MACHINE IN A VEHICLE WITH AN ENGINE DISCONNECT CLUTCH 有权用发动机断开离合器控制车辆的电机的方法公开(公告)号：US20150360679A1
公开(公告)日：2015-12-17
申请号：US14302987
申请日：2014-06-12
发明人： Rajit JOHRI , Xiaoyong WANG , Wei LIANG , Mark Steven YAMAZAKI , Ming Lang KUANG
CPC分类号： B60W20/40 , B60K6/387 , B60K6/547 , B60K2006/4825 , B60W10/02 , B60W10/06 , B60W10/08 , B60W2510/0241 , B60W2510/0275 , B60W2510/0638 , B60W2510/081 , B60W2540/10 , B60W2710/025 , B60W2710/083 , Y02T10/6252 , Y02T10/6286 , Y10S903/93 , Y10T477/32 , Y10T477/328
摘要： A method of controlling a vehicle, in which the vehicle includes an engine, a traction motor, and a clutch configured to selectively couple the engine to the motor, includes commanding the traction motor to provide an incremental torque. The motor is commanded to provide the incremental torque in response to the clutch being in a slipping condition. The magnitude of the commanded incremental torque is in response to the lesser of first and second torques. The first torque corresponds to an engine torque, and the second torque corresponds to a clutch torque capacity.
摘要翻译： 一种控制车辆的方法，其中车辆包括发动机，牵引电动机和被配置为选择性地将发动机耦合到电动机的离合器，包括指令牵引电动机提供增量转矩。 电动机被命令提供响应于离合器处于滑动状态的增量扭矩。 指令增量转矩的大小是响应于第一和第二转矩较小的。 第一转矩对应于发动机转矩，第二转矩对应于离合器转矩容量。
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公开(公告)号：US20150224976A1
公开(公告)日：2015-08-13
申请号：US14178695
申请日：2014-02-12
发明人： Xiaoyong WANG , Wei LIANG , Rajit JOHRI , Mark Steven YAMAZAKI , Ming Lang KUANG , Ryan Abraham MCGEE
CPC分类号： B60W10/08 , B60K6/48 , B60K2006/4825 , B60W10/18 , B60W30/18063 , B60W2520/10 , B60W2530/10 , B60W2540/12 , B60W2550/142 , B60W2710/083 , Y02T10/6221 , Y02T10/6252 , Y02T10/6286 , Y10S903/902 , Y10T477/24
摘要： A hybrid vehicle includes an engine and an electric machine, both capable of propelling the vehicle. The electric machine provides creep torque to propel the vehicle at a slow speed or hold the vehicle when on an incline. At least one controller is programmed to cancel or otherwise inhibit the electric machine from generating the creep torque in response to a brake torque or brake torque request exceeding a calibratible threshold. The calibratible threshold varies based upon vehicle incline, vehicle mass, and/or vehicle speed.
摘要翻译： 混合动力车辆包括能够推进车辆的发动机和电机。 电机提供蠕动转矩，以缓慢的速度推进车辆，或者在倾斜时保持车辆。 至少一个控制器被编程为响应于超过校准的阈值的制动转矩或制动转矩请求来取消或以其他方式禁止电机产生蠕变转矩。 校准阈值根据车辆倾斜度，车辆质量和/或车辆速度而变化。
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公开(公告)号：US20150134162A1
公开(公告)日：2015-05-14
申请号：US14076319
申请日：2013-11-11
发明人： Mark Steven YAMAZAKI , Wei LIANG , Xiaoyong WANG , Rajit JOHRI , Ryan Abraham MCGEE , Ming Lang KUANG
IPC分类号： B60W10/08
CPC分类号： B60W10/08 , B60K6/387 , B60K6/48 , B60K6/547 , B60K2006/4825 , B60W10/06 , B60W10/26 , B60W20/13 , B60W20/14 , B60W20/40 , B60W30/18027 , B60W30/18127 , B60W30/182 , B60W2510/244 , B60W2530/10 , B60W2530/16 , B60W2530/22 , B60W2540/12 , B60W2710/0666 , B60W2710/083 , B60W2710/244 , Y02T10/6252 , Y02T10/6286 , Y10S903/906 , Y10S903/947
摘要： A hybrid vehicle includes an engine and an electric machine, both capable of propelling the vehicle. The electric machine is electrically connected to a high voltage traction battery. The state of charge of the battery can decrease if the battery is used to power the electric machine, and can increase if the electric machine supplies power to the battery via regenerative braking. Constraints are placed on the vehicle such that the battery operates within a preferred operating window, defined between minimum and maximum state of charge thresholds. At least one controller is programmed to alter the preferred operating window of the battery in response to various vehicular activities, such as when the vehicle is towing another object, or when the vehicle weighs above a certain threshold due to contents within the vehicle, for example.
摘要翻译： 混合动力车辆包括能够推进车辆的发动机和电机。 电机电连接到高压牵引电池。 如果电池用于为电机供电，则电池的充电状态可能会降低，如果电机通过再生制动向电池供电，则电池的充电状态可能会降低。 约束被放置在车辆上，使得电池在优选的操作窗口内操作，在最小和最大充电状态阈值之间定义。 至少一个控制器被编程为响应于各种车辆活动来改变电池的优选操作窗口，例如当车辆牵引另一物体时，或者当车辆由于车辆内的内容而重量高于某个阈值时，例如 。
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公开(公告)号：US20170225675A1
公开(公告)日：2017-08-10
申请号：US15496215
申请日：2017-04-25
发明人： Xiaoyong WANG , Wei LIANG , Ming Lang KUANG , Rajit JOHRI , Daniel Scott COLVIN , Mark Steven YAMAZAKI
CPC分类号： B60W20/30 , B60K6/48 , B60K6/547 , B60W10/06 , B60W10/08 , B60W10/11 , B60W10/26 , B60W20/10 , B60W20/13 , B60W30/1882 , B60W2510/0657 , B60W2510/081 , B60W2510/083 , B60W2510/244 , B60W2520/10 , B60W2540/10 , B60W2710/0644 , B60W2710/0666 , B60W2710/081 , B60W2710/083 , B60W2710/1005 , B60Y2200/92 , F16H61/0213 , F16H2061/0227 , F16H2061/0232 , Y02T10/6221 , Y02T10/6286 , Y10S903/93 , Y10S903/945 , Y10T477/23
摘要： A shift strategy is provided for a hybrid electric vehicle to cause a speed of a motor to approach a target motor speed to increase fuel economy for an engine operating in a hybrid drive mode. A controller shifts the transmission according to a magnitude of a driver torque demand, the current rotor or impeller speed, and whether the motor is consuming or producing current. The controller shifts the transmission according to one shift schedule when the motor is motoring, and according to another shift schedule when the motor is generating power.
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公开(公告)号：US20150203091A1
公开(公告)日：2015-07-23
申请号：US14157677
申请日：2014-01-17
发明人： Xiaoyong WANG , Wei LIANG , Rajit JOHRI , Mark Steven YAMAZAKI , Ming Lang KUANG , Ryan Abraham MCGEE
CPC分类号： B60W20/10 , B60W10/02 , B60W10/06 , B60W10/08 , B60W20/00 , B60W30/18054 , B60W2540/103 , B60W2710/0666 , B60W2710/082 , Y02T10/6286 , Y10S903/93
摘要： A hybrid vehicle includes an engine and an electric machine selectively coupled to the engine via a clutch. The engine, electric machine, and clutch are arranged along a common axis. At least one controller is programmed to execute various commands when the vehicle is in park or neutral and the accelerator pedal of the vehicle is depressed. This enhances perceived vehicle reactions in response to accelerator pedal movement. To do so, the controller is programmed to control a rate of speed increase of the electric machine based on a rate of the depression of the accelerator pedal (e.g., “speed control”). Furthermore, the torque output of the engine is controlled to a target value irrespective of engine speed and engine torque is converted into electric energy via the electric machine (e.g., “torque control”). The rate of speed increase of the electric machine is altered when the engine is started.
摘要翻译： 混合动力车辆包括发动机和通过离合器选择性地联接到发动机的电机。 发动机，电机和离合器沿着公共轴线布置。 至少一个控制器被编程为当车辆处于停放或中立状态并且车辆的加速器踏板被按下时执行各种命令。 这增强了响应于加速器踏板运动的感觉到的车辆反应。 为此，控制器被编程为基于加速器踏板的压下率（例如，“速度控制”）来控制电机的速度增加速率。 此外，发动机的转矩输出被控制为目标值，而与发动机转速无关，发动机扭矩通过电机转换成电能（例如，“转矩控制”）。 发动机启动时电机的速度增加率会发生变化。
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公开(公告)号：US20150197242A1
公开(公告)日：2015-07-16
申请号：US14152140
申请日：2014-01-10
发明人： Mark Steven YAMAZAKI , Zhengyu DAI , Felix NEDOREZOV , Rajit JOHRI , Bernard D. NEFCY , Wei LIANG , Xiaoyong WANG
CPC分类号： B60W20/30 , B60W10/06 , B60W10/08 , B60W10/10 , B60W10/11 , B60W10/26 , B60W2510/244 , B60Y2200/92 , F16H61/0213 , F16H61/10 , F16H61/16 , Y02T10/6286 , Y10S903/93
摘要： A vehicle is provided with a powertrain including a battery-powered electric motor, an internal combustion engine, a transmission, and a powertrain controller. The controller is programmed to permit an upshift of a transmission gear ratio while a powertrain torque demand is less than a forecasted available powertrain torque sustainable over a predetermined upcoming duration of time. The controller is also programmed to inhibit an upshift while the torque demand exceeds the forecasted available powertrain torque to reduce successive gear shifts. The controller may be further programmed to, in response to battery a state of charge being less than a threshold, reduce the forecasted available powertrain torque by an amount sufficient to provide a recharge to a battery. The controller may be further still programmed to reduce the forecasted available powertrain torque by an amount sufficient to restart the engine while the powertrain is operating in an engine-off traction mode.
摘要翻译： 车辆设置有动力总成，其包括电池供电的电动机，内燃机，变速器和动力系控制器。 控制器被编程为允许传动齿轮比的升档，而动力系转矩需求小于在预定的即将到来的持续时间内可持续的预测的可用动力系转矩。 控制器还被编程为在转矩需求超过预测的可用动力系转矩以减少连续换档时禁止升档。 控制器可以被进一步编程为响应于电池的充电状态小于阈值，将预测的可用动力系转矩减小足以向电池提供再充电的量。 控制器还可以被编程为当动力系在发动机关闭牵引模式下操作时，将预测的可用动力系转矩减小足以重新启动发动机的量。
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公开(公告)号：US20150112524A1
公开(公告)日：2015-04-23
申请号：US14057311
申请日：2013-10-18
发明人： Xiaoyong WANG , Wei LIANG , Rajit JOHRI , Mark Steven YAMAZAKI , Ming Lang KUANG , Ryan Abraham McGEE
CPC分类号： B60W20/40 , B60W10/02 , B60W10/023 , B60W10/06 , B60W10/08 , B60W20/10 , B60W2540/10 , B60W2710/06 , B60Y2300/73 , B60Y2400/426 , F02N5/04 , F02N11/00 , F02N11/08 , F02N11/0803 , F02N11/0818 , F02N15/022 , F02N2200/023 , F02N2200/101 , F02N2300/2002 , Y02T10/6286 , Y10S903/902 , Y10S903/93
摘要： A vehicle includes a starter motor, an engine having an output mechanically coupled to the starter motor, a transmission having an input, and an electric machine mechanically coupled to the transmission input. The vehicle further includes a clutch configured to mechanically couple the electric machine and the output of the engine, and at least one controller. The at least one controller is programmed to initiate an engine start based on driver demand. The controller is further configured to enable pressure to the clutch for the engine start if driver demand is less than a calibratable torque value or enable the starter motor for the engine start if the driver demand is greater than a calibratable torque value. The controller may lock the clutch to the output of the engine in response to the speed of the engine being approximately equal to the speed of the electric machine.
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公开(公告)号：US20160280214A1
公开(公告)日：2016-09-29
申请号：US14665540
申请日：2015-03-23
发明人： Mark Steven YAMAZAKI , Xiaoyong WANG , Rajit JOHRI , Wei LIANG , Ming Lang KUANG , Jeffrey Allen Doering
CPC分类号： B60W10/08 , B60K6/48 , B60K2006/4825 , B60W10/02 , B60W10/06 , B60W20/00 , B60W50/082 , B60W2520/10 , B60W2540/10 , B60W2710/027 , B60W2710/244 , Y02T10/6221 , Y02T10/6252 , Y02T10/6286 , Y10S903/93
摘要： A vehicle and a method of controlling a vehicle are provided. The vehicle may include a controller programmed to, in response to a change from a first to a second powertrain operating mode, operate an engine and electric machine to increase a state of charge target of a traction battery to increase propulsion torque available from the electric machine. The controller may be further programmed to, in response to a decrease in accelerator pedal position and a vehicle speed being less than a threshold speed while operating the powertrain in the second powertrain operating mode and the engine and electric machine are coupled via a friction element, decrease a pressure of the friction element to a first target pressure to decouple the engine from the electric machine.
摘要翻译： 提供车辆和控制车辆的方法。 车辆可以包括控制器，其被编程为响应于从第一至第二动力系运行模式的变化，操作发动机和电机以增加牵引电池的充电状态，以增加从电机可获得的推进扭矩 。 控制器可以被进一步编程为响应于加速踏板位置的减小和车速小于阈值速度，同时在第二动力系运行模式下操作动力系，并且发动机和电机通过摩擦元件联接， 将摩擦元件的压力降低到第一目标压力，以使发动机与电机脱钩。
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10.发明申请公开(公告)号：US20160137182A1
公开(公告)日：2016-05-19
申请号：US14547566
申请日：2014-11-19
发明人： Rajit JOHRI , Ming Lang KUANG , Mark Steven YAMAZAKI , Xiaoyong WANG , Wei LIANG , Jeffrey Allen DOERING
CPC分类号： B60W20/10 , B60K6/387 , B60K6/547 , B60K2006/4825 , B60W10/026 , B60W10/06 , B60W10/08 , B60W10/115 , B60W20/30 , B60W20/40 , B60W50/06 , B60W2050/0091 , B60W2510/244 , B60W2520/10 , B60W2540/10 , B60W2710/024 , B60W2710/083 , B60W2710/1005 , B60Y2200/92 , F16H59/14 , F16H61/16 , F16H2059/147 , F16H2061/022 , F16H2061/163 , Y02T10/6252 , Y02T10/6286 , Y10S903/93
摘要： A vehicle is provided. The vehicle includes an engine, a motor, and a controller. The controller is programmed to inhibit a scheduled transmission downshift and increase a torque of the motor for a specified period of time in response to a torque demand being greater than a maximum torque capability of the engine but less than a maximum combined torque capability of the engine and motor. Upon expiration of the specified period of time, the controller may permit the downshift to occur. The specified period of time may be based on a state of charge of a battery at a time when the torque demand exceeds the maximum torque capability of the engine.
摘要翻译： 提供车辆。 车辆包括发动机，电动机和控制器。 控制器被编程为响应于大于发动机的最大扭矩能力但小于发动机的最大组合扭矩能力的扭矩需求而禁止预定的变速器降档并且增加电动机的扭矩达指定的时间段 和电机。 在指定时间段到期后，控制器可允许发生降档。 指定的时间段可以基于当转矩需求超过发动机的最大转矩能力时电池的充电状态。
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