METHOD AND APPARATUS FOR CONTROLLING CLUTCH DEACTIVATION IN A MULTI-MODE POWERTRAIN SYSTEM
    13.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING CLUTCH DEACTIVATION IN A MULTI-MODE POWERTRAIN SYSTEM 有权
    用于控制多模动力系统中离合器停止的方法和装置

    公开(公告)号:US20140038776A1

    公开(公告)日:2014-02-06

    申请号:US13568045

    申请日:2012-08-06

    IPC分类号: B60W10/02

    摘要: A powertrain system includes an internal combustion engine, a multi-mode transmission having a plurality of torque machines, and a driveline. A method for deactivating a torque transfer clutch of the multi-mode transmission includes imposing prioritized clutch torque constraints to an off-going clutch. The constraints include minimum and maximum long-term desired clutch torque constraints that are superseded by minimum and maximum soft clutch torque constraints that are superseded by minimum and maximum short-term desired clutch torque constraints that are superseded by minimum and maximum hard clutch torque constraints. The off-going clutch is controlled in response to the prioritized clutch torque constraints.

    摘要翻译: 动力系统包括内燃机,具有多个扭矩机的多模变速器和传动系。 用于使多模变速器的扭矩传递离合器停用的方法包括对离合离合器施加优先离合器转矩约束。 约束包括最小和最大长期期望的离合器扭矩约束,其被最小和最大软离合器扭矩约束所取代,该最小和最大软离合器扭矩约束被由最小和最大硬离合器扭矩约束所取代的最小和最大短期期望离合器扭矩约束所取代。 响应优先考虑的离合器扭矩限制来控制脱离离合器。

    METHOD AND APPARATUS FOR EXECUTING A TRANSMISSION RANGE SHIFT IN A MULTI-MODE POWERTRAIN SYSTEM
    14.
    发明申请
    METHOD AND APPARATUS FOR EXECUTING A TRANSMISSION RANGE SHIFT IN A MULTI-MODE POWERTRAIN SYSTEM 有权
    在多模式动力系统系统中执行变速范围换档的方法和装置

    公开(公告)号:US20140038773A1

    公开(公告)日:2014-02-06

    申请号:US13568051

    申请日:2012-08-06

    IPC分类号: B60W10/06

    摘要: A method for controlling a powertrain system including an internal combustion engine coupled to a multi-mode transmission in response to a command to execute a shift from a first EVT Mode range to a second EVT Mode range includes executing a first shift from the first EVT Mode range to an intermediate transmission range. The multi-mode transmission operates in the intermediate transmission range and the engine is controlled at an engine torque command that corresponds to an output torque request. A second shift is executed from the intermediate transmission range to the second transmission range. The powertrain system operates in the second transmission range to transfer torque to an output member of the transmission.

    摘要翻译: 一种用于响应于执行从第一EVT模式范围到第二EVT模式范围的移位的命令来控制包括耦合到多模传输的内燃机的动力系统的方法包括执行从第一EVT模式 范围到中间传输范围。 多模式变速器在中间传动范围内工作,并且发动机被控制在对应于输出转矩请求的发动机转矩指令。 从中间传输范围到第二传输范围执行第二移位。 动力系统在第二传动范围内运行,以将扭矩传递到变速器的输出构件。

    Method and apparatus for managing torque in a hybrid powertrain system
    15.
    发明授权
    Method and apparatus for managing torque in a hybrid powertrain system 有权
    用于管理混合动力系统中的扭矩的方法和装置

    公开(公告)号:US08452473B2

    公开(公告)日:2013-05-28

    申请号:US13151327

    申请日:2011-06-02

    IPC分类号: B60L9/00 B60L11/00 B60K1/00

    摘要: A powertrain system includes an internal combustion engine and an electric machine coupled via a torque transfer device to a transmission. A method for operating the powertrain system to transfer torque to a driveline includes establishing an operating torque security limit that is a default torque security limit. The operating torque security limit is set to an override limit when engine speed is less than a threshold speed. A torque security fault is detected only when a combined torque output from the internal combustion engine and the electric machine to the torque transfer device deviates from an operator torque request by an amount greater than the operating torque security limit.

    摘要翻译: 动力系统包括内燃机和通过转矩传递装置耦合到变速器的电机。 用于操作动力系统以将扭矩传递到传动系统的方法包括建立作为默认扭矩安全限制的操作扭矩安全限制。 当发动机转速低于阈值速度时,操作扭矩安全限值设定为超限。 只有当从内燃机和电机到扭矩传递装置的组合扭矩输出偏离操作者扭矩请求量大于操作扭矩安全极限的量时,才能检测到扭矩安全故障。

    METHOD AND SYSTEM FOR DETERMINING OUTPUT TORQUE CAPABILITIES IN HYBRID AND ELECTRIC POWERTRAINS
    16.
    发明申请
    METHOD AND SYSTEM FOR DETERMINING OUTPUT TORQUE CAPABILITIES IN HYBRID AND ELECTRIC POWERTRAINS 有权
    用于确定混合动力系统中输出扭矩能力的方法和系统

    公开(公告)号:US20120078536A1

    公开(公告)日:2012-03-29

    申请号:US12892034

    申请日:2010-09-28

    IPC分类号: G01L3/00

    摘要: A method for determining output torque capabilities in a transmission having a first, second, and third node, each of which has a speed and acceleration. The method includes controlling the speed of the first node, calculating a real maximum long-term output torque capability (raw max LT) as a function of at least the acceleration and the speed of the first and second nodes, and calculating an inertialess maximum long-term output torque capability (inertialess max LT), which is identical to the raw max LT except that the inertialess max LT ignores torque capability due to acceleration of the first node. The raw max LT and the inertialess max LT are compared to determine an operating capability for the transmission. The first node may be an input node for the transmission. The method may include determining a new effective minimum long-term output torque capability (new effective min LT) by similar considerations.

    摘要翻译: 一种用于确定具有第一,第二和第三节点的传输中的输出转矩能力的方法,每个节点具有速度和加速度。 该方法包括控制第一节点的速度,计算作为至少第一和第二节点的加速度和速度的函数的实际最大长期输出转矩能力(原始最大值LT),以及计算无惯性最大长度 - 惯性输出扭矩能力(惯性最大值LT),其与原始最大值LT相同,除了惯性最大值LT忽略由于第一节点的加速度引起的转矩能力。 比较原始最大LT和惯性最大值LT以确定传输的操作能力。 第一节点可以是用于传输的输入节点。 该方法可以包括通过类似的考虑来确定新的有效最小长期输出转矩能力(新的有效最小值LT)。

    Method of determining output torque constraints for a powertrain
    17.
    发明授权
    Method of determining output torque constraints for a powertrain 有权
    确定动力总成输出转矩约束的方法

    公开(公告)号:US08126604B2

    公开(公告)日:2012-02-28

    申请号:US12627395

    申请日:2009-11-30

    IPC分类号: B60L3/00 G05D1/00

    CPC分类号: B60W30/1846 B60K1/02 B60K6/20

    摘要: A method of determining output torque constraints for a powertrain having a plurality of components includes monitoring individual component limits, including a first motor limit, a first torque transmitting mechanism limit, and a battery power limit. Each of the individual component limits includes a minimum and a maximum individual limit due to each respective component. The method also determines whether each of the individual component limits can be satisfied by selecting a first torque value. The method sets an output torque constraint by selecting the first torque value, if the first torque value satisfies each of the individual component limits. The method selects a second torque value if the first torque value does not satisfy each of the individual component limits, and prioritizes the first motor limit, then the first torque transmitting mechanism limit, and then the battery power limit.

    摘要翻译: 确定具有多个部件的动力系的输出扭矩约束的方法包括监视包括第一电动机极限,第一扭矩传递机构限制和电池功率极限的各个部件限制。 每个单独的组件限制包括由于每个相应组件造成的最小和最大个体极限。 该方法还通过选择第一扭矩值来确定是否可以满足每个单独的部件限制。 该方法通过选择第一转矩值来设定输出转矩约束,如果第一转矩值满足各个分量极限。 如果第一转矩值不满足各个分量极限,则选择第二转矩值,并且优先考虑第一电动机极限,然后对第一转矩传递机构进行限制,然后限制电池功率限制。

    Pre-emptive output torque reduction for a transient speed event and prioritization of inertia
    19.
    发明授权
    Pre-emptive output torque reduction for a transient speed event and prioritization of inertia 有权
    用于瞬态速度事件的优先输出转矩降低和惯性优先级

    公开(公告)号:US08948942B2

    公开(公告)日:2015-02-03

    申请号:US13160908

    申请日:2011-06-15

    IPC分类号: B60L15/20

    摘要: A method to control an output torque of a powertrain in response to an incipient transient speed event within the powertrain includes determining an incipient transient speed event, determining a maximum output torque capability profile based upon the incipient transient speed event, determining a minimum value of the maximum output torque capability profile, and limiting the output torque to not greater than the minimum value of the maximum output torque capability profile until the incipient transient speed event is concluded.

    摘要翻译: 响应于动力系内的初始瞬态速度事件来控制动力系的输出扭矩的方法包括确定初始瞬态速度事件,基于初始瞬态速度事件确定最大输出转矩能力分布,确定最小值 最大输出转矩能力曲线,并将输出转矩限制在不大于最大输出转矩能力曲线的最小值,直到初始瞬态速度事件结束为止。

    Method and apparatus for controlling a multi-mode powertrain system
    20.
    发明授权
    Method and apparatus for controlling a multi-mode powertrain system 有权
    用于控制多模动力系统的方法和装置

    公开(公告)号:US08862350B2

    公开(公告)日:2014-10-14

    申请号:US13568638

    申请日:2012-08-07

    摘要: A powertrain system includes a multi-mode transmission configured to transfer torque among an engine, torque machines, and a driveline. A method for controlling the powertrain includes executing a dual closed-loop control scheme that includes determining an engine-based output torque range employed in a first feedback loop and simultaneously determining a control acceleration-based output torque range employed in a second feedback loop. Engine commands are controlled responsive to the engine-based output torque range and simultaneously a control acceleration is controlled responsive to the control acceleration-based output torque range to achieve an output torque of the powertrain system responsive to an output torque request.

    摘要翻译: 动力系统包括构造成在发动机,扭矩机和传动系之间传递转矩的多模式变速器。 一种用于控制动力系的方法包括执行双重闭环控制方案,其包括确定在第一反馈回路中采用的基于发动机的输出转矩范围,同时确定在第二反馈回路中采用的基于控制加速度的输出转矩范围。 响应于基于发动机的输出转矩范围控制发动机指令,并且同时响应于基于控制加速度的输出转矩范围来控制控制加速度,以响应于输出转矩请求实现动力系统的输出转矩。