Method and apparatus to determine instantaneous engine power loss for a powertrain system
    15.
    发明授权
    Method and apparatus to determine instantaneous engine power loss for a powertrain system 有权
    确定动力总成系统瞬时发动机功率损耗的方法和装置

    公开(公告)号:US07493206B2

    公开(公告)日:2009-02-17

    申请号:US11737197

    申请日:2007-04-19

    IPC分类号: G06F19/00 F02D41/04

    摘要: There is provided a method and an article of manufacture comprising a storage medium having machine-executable code stored therein for estimating a power loss for an internal combustion engine at a point in time. The code includes code to determine engine operating conditions. A nominal power loss is determined based upon an engine operating point. A power loss correction to the nominal power loss is determined based upon barometric pressure, engine temperature, air/fuel ratio, and catalyst temperature. The power loss correction is determinable for: an engine air/fuel ratio mode, an engine cylinder activation mode, and, an engine operating temperature mode.

    摘要翻译: 提供了一种方法和制品,其包括其中存储有机器可执行代码的存储介质,用于估计内燃机在某个时间点的功率损耗。 该代码包括确定发动机工作条件的代码。 基于发动机工作点确定额定功率损失。 基于大气压力,发动机温度,空气/燃料比和催化剂温度来确定对额定功率损耗的功率损耗校正。 功率损失校正可以用于:发动机空气/燃料比模式,发动机气缸启动模式和发动机工作温度模式。

    Method and apparatus to optimize engine warm up
    16.
    发明授权
    Method and apparatus to optimize engine warm up 有权
    优化发动机预热的方法和装置

    公开(公告)号:US07487030B2

    公开(公告)日:2009-02-03

    申请号:US11737211

    申请日:2007-04-19

    IPC分类号: G06F19/00 F02D41/04

    摘要: There is provided a method and an apparatus to minimize energy loss of an internal combustion engine during engine warm-up. This includes monitoring engine operating conditions, and estimating a future energy loss. A power loss and a rate of change in the estimated future energy loss are determined. An engine control scheme effective to minimize the power loss and the rate of change in the estimated future energy loss is executed during the engine warm-up.

    摘要翻译: 提供了一种在发动机预热期间最小化内燃机的能量损失的方法和装置。 这包括监控发动机的运行状况,并估算未来的能量损失。 确定电力损失和未来能源损失估计的变化率。 在发动机预热期间执行有效地最小化功率损耗的发动机控制方案和估计的未来能量损失的变化率。

    Method and apparatus to control a multi-mode powertrain system
    17.
    发明授权
    Method and apparatus to control a multi-mode powertrain system 有权
    控制多模动力系统的方法和装置

    公开(公告)号:US08892283B2

    公开(公告)日:2014-11-18

    申请号:US13547096

    申请日:2012-07-12

    IPC分类号: G06F17/11

    摘要: A method for controlling a powertrain system includes determining minimum and maximum states for an object component of interest based upon a plurality of linear constraints that are associated with operating parameters for the torque machines and the multi-mode transmission. Minimum and maximum objective battery powers are determined based upon the minimum and maximum states for the object component of interest. When the minimum and maximum objective battery powers are outside the minimum and maximum battery power limits, a problem recomposition process is executed to recompose the minimum and maximum battery power limits and the linear constraints. Recomposed minimum and maximum states for the object component of interest are determined based upon the recomposed minimum and maximum battery power limits and the recomposed linear constraints. The recomposed minimum and maximum states for the object component of interest are employed to control the powertrain system.

    摘要翻译: 一种用于控制动力系统的方法包括基于与用于扭矩机和多模式变速器的操作参数相关联的多个线性约束来确定目标部件的最小和最大状态。 基于感兴趣对象分量的最小和最大状态确定最小和最大目标电池功率。 当最小和最大目标电池功率超出最小和最大电池电量限制时,执行问题重组过程以重新组合最小和最大电池功率极限以及线性约束。 基于重组的最小和最大电池功率限制以及重组的线性约束来确定目标成分的重要的最小和最大状态。 用于感兴趣的对象分量的重组的最小和最大状态用于控制动力系统。

    Method and apparatus for state selection stabilization for electrified powertrains
    18.
    发明授权
    Method and apparatus for state selection stabilization for electrified powertrains 有权
    用于电气化动力系统状态选择稳定的方法和装置

    公开(公告)号:US08880256B2

    公开(公告)日:2014-11-04

    申请号:US13571061

    申请日:2012-08-09

    IPC分类号: B60K17/06

    摘要: A method for stabilizing selection between a plurality of operating range states of an electro-mechanical multi-mode transmission configured to transfer torque among an engine, at least one electric machine, and a driveline includes requesting operation of the transmission in a preferred operating range state while a shift from a first operating range state to a second operating range state is in progress prior to achieving the second operating range state. Powertrain information is monitored and compared to a driver perception threshold only if a change of mind condition is detected. The shift to the second operating range state is avoided and a shift to the preferred operating range state is commanded if the powertrain information does not violate the driver perception threshold.

    摘要翻译: 一种用于稳定在配置成在发动机,至少一个电机和传动系之间传递转矩的机电多模变速器的多个工作范围状态之间的选择的方法包括在优选的工作范围状态下请求所述变速器的操作 而在实现第二操作范围状态之前,从第一操作范围状态向第二操作范围状态的转变正在进行中。 仅当检测到心理条件的改变时,监控动力系统信息并将其与驾驶员感知阈值进行比较。 避免向第二工作范围状态的转移,并且如果动力系信息不违反驾驶员感知阈值,则转移到优选操作范围状态。

    Method and apparatus for executing an asynchronous clutch-to-clutch shift in a hybrid transmission
    19.
    发明授权
    Method and apparatus for executing an asynchronous clutch-to-clutch shift in a hybrid transmission 有权
    在混合变速器中执行异步离合器到离合器换档的方法和装置

    公开(公告)号:US08801567B2

    公开(公告)日:2014-08-12

    申请号:US13398993

    申请日:2012-02-17

    IPC分类号: B60W10/10 B60W20/00

    摘要: A hybrid transmission includes first and second electric machines. A method for operating the hybrid transmission in response to a command to execute a shift from an initial continuously variable mode to a target continuously variable mode includes increasing torque of an oncoming clutch associated with operating in the target continuously variable mode and correspondingly decreasing a torque of an off-going clutch associated with operating in the initial continuously variable mode. Upon deactivation of the off-going clutch, torque outputs of the first and second electric machines and the torque of the oncoming clutch are controlled to synchronize the oncoming clutch. Upon synchronization of the oncoming clutch, the torque for the oncoming clutch is increased and the transmission is operated in the target continuously variable mode.

    摘要翻译: 混合变速器包括第一和第二电机。 用于响应于执行从初始连续可变模式到目标连续可变模式的转换的命令来操作混合变速器的方法包括增加与目标连续可变模式中操作相关联的到来离合器的转矩,并相应地减小 与在初始连续可变模式下操作相关联的离合离合器。 在停用离合器离合器时,控制第一和第二电机的扭矩输出和即将到来的离合器的扭矩,以使迎面而来的离合器同步。 在迎面而来的离合器同步时,即将到来的离合器的扭矩增加,变速器以目标连续可变模式运转。

    METHOD AND APPARATUS FOR DETERMINING A SOLUTION TO A LINEAR CONSTRAINTS PROBLEM IN A MULTI-MODE POWERTRAIN SYSTEM
    20.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING A SOLUTION TO A LINEAR CONSTRAINTS PROBLEM IN A MULTI-MODE POWERTRAIN SYSTEM 有权
    用于确定解决方案到多模式动力系统系统中的线性约束问题的方法和装置

    公开(公告)号:US20140046519A1

    公开(公告)日:2014-02-13

    申请号:US13569929

    申请日:2012-08-08

    摘要: A method for operating a powertrain system includes determining an objective function for an object component of interest of the powertrain system. Constraints are determined for a plurality of independent variables and dependent variables. Permutations of the objective function are evaluated with reference to the independent variables and the dependent variables. The objective function is evaluated to determine maximum and minimum values for the objective function for each of the permutations. Overall minimum and maximum values for the objective function are determined based upon the maximum and minimum values for the objective function for each of the permutations. Operation of the powertrain system associated with the object component of interest is controlled based upon the overall minimum and maximum values for the objective function.

    摘要翻译: 用于操作动力系统的方法包括确定动力系统感兴趣的对象分量的目标函数。 确定多个独立变量和因变量的约束。 参考自变量和因变量来评估目标函数的排列。 评估目标函数以确定每个排列的目标函数的最大值和最小值。 基于每个排列的目标函数的最大值和最小值来确定目标函数的总体最小值和最大值。 基于目标函数的总体最小值和最大值来控制与感兴趣的对象分量相关联的动力系统的操作。