Method for preferential selection of mode and gear and input speed based on multiple engine state fueling costs for a hybrid powertrain system
    22.
    发明授权
    Method for preferential selection of mode and gear and input speed based on multiple engine state fueling costs for a hybrid powertrain system 有权
    基于混合动力系统的多发动机状态加油成本优先选择模式和齿轮以及输入速度的方法

    公开(公告)号:US08073601B2

    公开(公告)日:2011-12-06

    申请号:US12236546

    申请日:2008-09-24

    IPC分类号: G06F7/00

    摘要: A method for controlling a hybrid powertrain system including an engine selectively operative in one of an all-cylinder state and a cylinder deactivation state based upon power costs includes determining engine power costs for each operating range state of the transmission, determining a system power cost, selecting a preferred cost and corresponding engine operating points, selecting a preferred operating range state, selecting the engine state, and controlling the engine based upon the selected operating range state, the selected engine state, and the engine operating points.

    摘要翻译: 一种用于控制混合动力系统的方法,包括基于动力成本选择性地以全气缸状态和汽缸停用状态之一工作的发动机的发动机,包括确定变速器的每个工作范围状态的发动机功率成本,确定系统功率成本, 选择优选成本和对应的发动机工作点,选择优选的操作范围状态,选择发动机状态,以及基于所选择的操作范围状态,所选择的发动机状态和发动机工作点来控制发动机。

    Method and apparatus for optimizing braking control during a threshold braking event
    23.
    发明授权
    Method and apparatus for optimizing braking control during a threshold braking event 有权
    用于在阈值制动事件期间优化制动控制的方法和装置

    公开(公告)号:US08062175B2

    公开(公告)日:2011-11-22

    申请号:US12264338

    申请日:2008-11-04

    IPC分类号: H02P3/04

    摘要: A method minimizes a driveline vibration and reduces stopping distances in a hybrid electric vehicle (HEV) having a plurality of drive wheels, a friction braking system having antilock braking system (ABS) capability, and an electronically variable transmission (EVT) with two EVT modes. The method automatically shifts the EVT to a predetermined high speed/low torque EVT mode when the ABS is active and when a calibrated maximum deceleration rate is not exceeded. An HEV has a friction braking system with ABS capability and an EVT including a plurality of modes. A controller automatically activates the friction braking ABS in response to a threshold level of slip between the drive wheels and the road surface when the brake pedal is actuated. An algorithm automatically shifts the EVT into one of the high speed/low torque EVT modes when the ABS is activated and the calibrated maximum deceleration rate is not exceeded.

    摘要翻译: 一种方法使具有多个驱动轮的混合电动车辆(HEV),具有防抱死制动系统(ABS)能力的摩擦制动系统和具有两个EVT模式的电子可变变速器(EVT)的传动系振动和减小停止距离最小化 。 当ABS处于活动状态并且未超过校准的最大减速率时,该方法自动将EVT移动到预定的高速/低扭矩EVT模式。 HEV具有ABS功能的摩擦制动系统和包括多种模式的EVT。 当制动踏板被致动时,控制器响应于驱动轮和路面之间的滑差阈值水平自动启动摩擦制动ABS。 当ABS被激活并且未超过校准的最大减速率时,算法会自动将EVT移动到高速/低扭矩EVT模式之一。

    METHOD FOR CONTROLLING OUTPUT TORQUE IN POWERTRAINS
    27.
    发明申请
    METHOD FOR CONTROLLING OUTPUT TORQUE IN POWERTRAINS 有权
    用于控制动力传动系统输出扭矩的方法

    公开(公告)号:US20110125352A1

    公开(公告)日:2011-05-26

    申请号:US12625604

    申请日:2009-11-25

    IPC分类号: B60W20/00 G06F7/00

    摘要: A method of controlling output torque in a hybrid or electric vehicle transmissions includes calculating a first long-term output torque constraint and a first short-term output torque constraint. A first effective output torque constraint is determined from at least one of the first long-term and short-term output torque constraints. The first effective output torque constraint is bounded by both of the first long-term and short-term output torque constraints. The method may further include calculating a rate limit, such that determining the first effective output torque constraint includes restricting the magnitude of changes in the first long-term output torque constraint to the calculated rate limit. A spread between the first short-term output torque constraint and the first effective output torque constraint may be measured, and the rate limit calculated as a function of that spread. The rate limit may also be calculated with an inversely-proportional relationship to the spread.

    摘要翻译: 控制混合动力或电动车辆变速器中的输出转矩的方法包括计算第一长期输出转矩约束和第一短期输出转矩约束。 从第一长期和短期输出转矩约束中的至少一个确定第一有效输出转矩约束。 第一个有效输出转矩约束受第一个长期和短期输出转矩约束的限制。 该方法还可以包括计算速率限制,使得确定第一有效输出转矩约束包括将第一长期输出转矩约束中的变化的幅度限制到计算的速率极限。 可以测量第一短期输出转矩约束与第一有效输出转矩约束之间的差值,并且计算出作为该扩展的函数的速率限制。 速率限制也可以与扩展成反比关系来计算。

    PUMPING LOSS REDUCTION SYSTEMS AND METHODS
    28.
    发明申请
    PUMPING LOSS REDUCTION SYSTEMS AND METHODS 有权
    抽水减少系统和方法

    公开(公告)号:US20110100013A1

    公开(公告)日:2011-05-05

    申请号:US12629152

    申请日:2009-12-02

    IPC分类号: F01B21/04 F02M63/02 F02D43/00

    摘要: An engine control system comprises a base air per cylinder (APC) module, a catalyst temperature adjustment module, an ambient temperature adjustment module, and an APC adjustment module. The base APC module determines a base APC to reduce first engine pumping losses during a first deceleration fuel cutoff (DFCO) event relative to second engine pumping losses during a second DFCO event. The catalyst temperature adjustment module determines a catalyst temperature adjustment based on a catalyst temperature during the first DFCO event. The ambient temperature adjustment module determines an ambient temperature adjustment based on an ambient air temperature during the first DFCO event. The APC adjustment module selectively adjusts the base APC based on the catalyst temperature adjustment and the ambient temperature adjustment and controls at least one of the engine airflow actuators based on the adjusted base APC during the first DFCO event.

    摘要翻译: 发动机控制系统包括每缸气体(APC)模块,催化剂温度调节模块,环境温度调节模块和APC调节模块。 在第二DFCO事件期间,基本APC模块确定基本APC以减少在第一减速燃料切断(DFCO)事件期间相对于第二发动机泵送损失的第一发动机泵送损失。 催化剂温度调节模块基于第一DFCO事件期间的催化剂温度来确定催化剂温度调节。 环境温度调节模块基于第一DFCO事件期间的环境空气温度来确定环境温度调节。 APC调节模块基于催化剂温度调节和环境温度调节来选择性地调节基座APC,并且在第一DFCO事件期间基于经调整的基座APC控制至少一个发动机气流致动器。