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公开(公告)号：US08761988B2
公开(公告)日：2014-06-24
申请号：US13568061
申请日：2012-08-06
IPC分类号： B60K17/06
CPC分类号： B60W10/06 , B60K6/365 , B60K6/445 , B60W10/08 , B60W10/105 , B60W10/115 , B60W20/30 , B60W2510/0657 , B60W2710/0644 , Y02T10/6239 , Y02T10/6286 , Y02T10/84
摘要： A method for operating a powertrain system to transfer torque among an engine, torque machines, and a driveline includes executing a search to determine a preferred engine operating point for operating the powertrain system in a transmission range in response to an output torque request. The search includes employing a candidate torque normalization ratio to determine a candidate engine torque from a normalized torque search space, and determining a candidate power cost associated with operating the powertrain system at the candidate engine torque for each of a plurality of candidate engine speeds within an input speed range and a plurality of candidate torque normalization ratios. A preferred engine speed is determined, and includes the candidate engine speed corresponding to the one of the candidate engine torques associated with a minimum of the candidate power costs. Engine operation is controlled responsive to the preferred engine speed.
摘要翻译： 用于操作动力系统以在发动机，扭矩机和传动系之间传递扭矩的方法包括执行搜索以确定用于响应于输出扭矩请求在传动范围内操作动力系统的优选发动机工作点。 搜索包括采用候选转矩归一化比率来从归一化的转矩搜索空间确定候选发动机扭矩，以及确定与在动力系统内的多个候选发动机转速中的每一个的候选发动机转矩下操作动力系统相关联的候选动力成本 输入速度范围和多个候选转矩归一化率。 确定优选的发动机速度，并且包括对应于与最小候选动力成本相关联的候选发动机扭矩之一的候选发动机转速。 发动机操作是根据优选的发动机转速来控制的。
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公开(公告)号：US08775000B2
公开(公告)日：2014-07-08
申请号：US13568070
申请日：2012-08-06
IPC分类号： B60K17/06
CPC分类号： B60W10/06 , B60K6/365 , B60K6/387 , B60K6/445 , B60W10/08 , B60W10/105 , B60W10/115 , B60W20/30 , B60W2510/0638 , B60W2510/0657 , Y02T10/6239 , Y02T10/6286 , Y02T10/84
摘要： A method for operating a powertrain system includes selecting a plurality of candidate transmission ranges associated with a present powertrain operating point and deselecting candidate transmission ranges not associated with the present powertrain operating point. A high resolution engine speed/torque search is executed for each of the selected candidate transmission ranges. A low resolution engine speed/torque search is executed for each of the deselected candidate transmission ranges. Each search is executed to determine a respective minimum power cost for operating the powertrain system in one of the candidate transmission ranges in response to an output torque request and output speed. A preferred transmission range is determined from the candidate transmission ranges. A preferred engine operating point is determined corresponding to the minimum power cost for the preferred transmission range. The powertrain system is controlled in the preferred transmission range with the engine operating at the preferred engine operating point.
摘要翻译： 一种用于操作动力系统的方法包括选择与当前动力系运行点相关联的多个候选传输范围，以及取消不与当前动力系运行点相关联的候选传输范围。 对于所选择的候选传输范围中的每一个执行高分辨率的发动机转速/转矩搜索。 对于每个未选择的候选传输范围执行低分辨率的发动机转速/转矩搜索。 执行每个搜索以确定响应于输出转矩请求和输出速度在候选传输范围之一中操作动力系统的相应的最小功率成本。 从候选传输范围确定优选传输范围。 根据优选传输范围的最小功率成本确定优选的发动机工作点。 动力系统在优选的传动范围内被控制，发动机在优选的发动机工作点运行。
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公开(公告)号：US20140039738A1
公开(公告)日：2014-02-06
申请号：US13568070
申请日：2012-08-06
CPC分类号： B60W10/06 , B60K6/365 , B60K6/387 , B60K6/445 , B60W10/08 , B60W10/105 , B60W10/115 , B60W20/30 , B60W2510/0638 , B60W2510/0657 , Y02T10/6239 , Y02T10/6286 , Y02T10/84
摘要： A method for operating a powertrain system includes selecting a plurality of candidate transmission ranges associated with a present powertrain operating point and deselecting candidate transmission ranges not associated with the present powertrain operating point. A high resolution engine speed/torque search is executed for each of the selected candidate transmission ranges. A low resolution engine speed/torque search is executed for each of the deselected candidate transmission ranges. Each search is executed to determine a respective minimum power cost for operating the powertrain system in one of the candidate transmission ranges in response to an output torque request and output speed. A preferred transmission range is determined from the candidate transmission ranges. A preferred engine operating point is determined corresponding to the minimum power cost for the preferred transmission range. The powertrain system is controlled in the preferred transmission range with the engine operating at the preferred engine operating point.
摘要翻译： 一种用于操作动力系统的方法包括选择与当前动力系运行点相关联的多个候选传输范围，以及取消不与当前动力系运行点相关联的候选传输范围。 对于所选择的候选传输范围中的每一个执行高分辨率的发动机转速/转矩搜索。 对于每个未选择的候选传输范围执行低分辨率的发动机转速/转矩搜索。 执行每个搜索以确定响应于输出转矩请求和输出速度在候选传输范围之一中操作动力系统的相应的最小功率成本。 从候选传输范围确定优选传输范围。 根据优选传输范围的最小功率成本确定优选的发动机工作点。 动力系统在优选的传动范围内被控制，发动机在优选的发动机工作点运行。
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公开(公告)号：US20140039737A1
公开(公告)日：2014-02-06
申请号：US13568061
申请日：2012-08-06
CPC分类号： B60W10/06 , B60K6/365 , B60K6/445 , B60W10/08 , B60W10/105 , B60W10/115 , B60W20/30 , B60W2510/0657 , B60W2710/0644 , Y02T10/6239 , Y02T10/6286 , Y02T10/84
摘要： A method for operating a powertrain system to transfer torque among an engine, torque machines, and a driveline includes executing a search to determine a preferred engine operating point for operating the powertrain system in a transmission range in response to an output torque request. The search includes employing a candidate torque normalization ratio to determine a candidate engine torque from a normalized torque search space, and determining a candidate power cost associated with operating the powertrain system at the candidate engine torque for each of a plurality of candidate engine speeds within an input speed range and a plurality of candidate torque normalization ratios. A preferred engine speed is determined, and includes the candidate engine speed corresponding to the one of the candidate engine torques associated with a minimum of the candidate power costs. Engine operation is controlled responsive to the preferred engine speed.
摘要翻译： 用于操作动力系统以在发动机，扭矩机和传动系之间传递扭矩的方法包括执行搜索以确定用于响应于输出扭矩请求在传动范围内操作动力系统的优选发动机工作点。 搜索包括采用候选转矩归一化比率来从归一化的转矩搜索空间确定候选发动机扭矩，以及确定与在动力系统内的多个候选发动机转速中的每一个的候选发动机转矩下操作动力系统相关联的候选动力成本 输入速度范围和多个候选转矩归一化率。 确定优选的发动机速度，并且包括对应于与最小候选动力成本相关联的候选发动机扭矩之一的候选发动机转速。 发动机操作是根据优选的发动机转速来控制的。
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