Torque management algorithm for hybrid electric vehicles
    1.
    发明申请
    Torque management algorithm for hybrid electric vehicles 有权
    混合动力汽车扭矩管理算法

    公开(公告)号:US20050246076A1

    公开(公告)日:2005-11-03

    申请号:US10836799

    申请日:2004-04-30

    摘要: A system and method for determining a commanded engine and motor torque to minimize fuel consumption and manage battery state of charge in a hybrid electric vehicle. The method includes determining a penalty factor value that dictates the usage of the battery. A cost value is determined for every feasible engine torque for a selected or demanded vehicle torque and speed request. Each cost value is determined by a fuel consumption value, a change in the battery state of charge and the penalty factor value. The change in the battery state of charge is determined from the motor power and a nominal battery state of charge. For a specific penalty factor, a look-up table for optimal engine torque is generated for different requested vehicle torques at various vehicle speeds. A separate look-up table is provided for each penalty factor.

    摘要翻译: 一种用于确定指挥的发动机和电动机扭矩的系统和方法,以最小化燃料消耗并且在混合动力电动车辆中管理电池的充电状态。 该方法包括确定指示电池使用的罚因子值。 对于所选择的或要求的车辆扭矩和速度请求的每个可行的发动机扭矩确定成本值。 每个成本值由燃料消耗值,电池充电状态的变化和罚因子值确定。 电池充电状态的变化由电机功率和标称电池充电状态决定。 对于特定的惩罚因素,针对不同车辆速度下的不同要求的车辆扭矩产生用于最佳发动机扭矩的查找表。 为每个惩罚因素提供单独的查找表。

    Method and article of manufacture for monitoring an electrical energy storage device
    3.
    发明申请
    Method and article of manufacture for monitoring an electrical energy storage device 有权
    监测蓄电装置的方法和制造方法

    公开(公告)号:US20070132456A1

    公开(公告)日:2007-06-14

    申请号:US11561907

    申请日:2006-11-21

    IPC分类号: G01N27/416

    摘要: There is provided a method and article of manufacture for monitoring an electrical energy storage device for a system. The method comprises stabilizing the electrical energy storage device. Once the device is stabilized, a discrete electrical load is cyclically applied to the electrical energy storage device and state variables of the electrical energy storage device are monitored. A resistance of the electrical energy storage device is determined, and a remaining useful life parameter of the electrical energy storage device is determined based upon the determined resistance.

    摘要翻译: 提供了一种用于监测系统的电能存储装置的方法和制造物品。 该方法包括稳定电能存储装置。 一旦设备稳定,将离散的电负载循环地施加到电能存储装置,并且监视电能存储装置的状态变量。 确定电能存储装置的电阻,并且基于确定的电阻来确定电能存储装置的剩余使用寿命参数。

    State of health monitoring and fault diagnosis for integrated vehicle stability system
    4.
    发明申请
    State of health monitoring and fault diagnosis for integrated vehicle stability system 有权
    综合车辆稳定系统的健康监测和故障诊断状态

    公开(公告)号:US20060020379A1

    公开(公告)日:2006-01-26

    申请号:US10899445

    申请日:2004-07-26

    IPC分类号: G06F17/00

    摘要: A system and method for providing state of health monitoring and fault diagnostics for a vehicle stability system. The system includes at least one primary sensor and at least one secondary sensor for sensing the operation of at least one vehicle characteristic. The system calculates an estimated output of the primary sensor using at least one estimate model, and generates at least one residual as the difference between a measured output of the primary sensor and the estimated output of the estimate model. The system uses a residual pattern to determine if the primary sensor is faulty. The system compares the measured output of the primary sensor to a measured output of the secondary sensor if the residual is less than a threshold, and determines that the secondary sensor is faulty if the comparison between the measured outputs of the primary and secondary sensors is greater than a predetermined threshold.

    摘要翻译: 一种用于为车辆稳定系统提供健康状态监测和故障诊断的系统和方法。 该系统包括至少一个主传感器和用于感测至少一个车辆特性的操作的至少一个次传感器。 该系统使用至少一个估计模型计算主传感器的估计输出,并且产生至少一个残差,作为主传感器的测量输出与估计模型的估计输出之间的差。 系统使用残差模式来确定主传感器是否有故障。 如果残差小于阈值,则系统将主传感器的测量输出与次传感器的测量输出进行比较,并且如果主传感器和次传感器的测量输出之间的比较较大,则确定次传感器故障 超过预定阈值。

    Brake by-wire control system
    5.
    发明申请
    Brake by-wire control system 审中-公开
    制动线控系统

    公开(公告)号:US20050225165A1

    公开(公告)日:2005-10-13

    申请号:US10823469

    申请日:2004-04-13

    摘要: A brake control system for brake by wire applications having a dual fail-silent pair controller architecture. The system utilizes two supervisory controllers and a shared monitoring controller to achieve the dual fail-silent pair configuration. The brake control system also features a mechanism whereby the monitoring controller ensures the fail-silent operation of the brake control units in the event of certain undesired events occurring within the system by assuming control of the affected brake control units. The control system further assures that no single event, including an event related to the monitoring controller, causes loss of more than half the braking functionality. The control system also features additional redundancy with regard to the brake command signals by sharing a separate unprocessed brake command signal with each of the supervisory controllers and the monitoring controller.

    摘要翻译: 一种用于具有双故障静音对控制器架构的制动器制动控制系统。 该系统利用两个监控控制器和一个共享监控控制器来实现双重故障安全对配置。 制动控制系统还具有一种机构,通过假定对受影响的制动控制单元的控制,监控控制器通过在系统内发生某些不期望的事件来确保制动控制单元的故障静音操作。 控制系统进一步确保,不包括与监视控制器有关的事件的单个事件导致制动功能的一半以上的损失。 通过与每个监控控制器和监视控制器共享单独的未处理的制动指令信号,控制系统还具有关于制动指令信号的附加冗余。

    System and method for fuzzy-logic based fault diagnosis
    6.
    发明申请
    System and method for fuzzy-logic based fault diagnosis 审中-公开
    基于模糊逻辑的故障诊断系统和方法

    公开(公告)号:US20070078576A1

    公开(公告)日:2007-04-05

    申请号:US11243058

    申请日:2005-10-04

    IPC分类号: G06F19/00

    CPC分类号: G07C5/0808 G07C5/085

    摘要: A system and method for monitoring the state of health of sensors, actuators and sub-systems in an integrated vehicle control system. The method includes identifying a plurality of potential faults, identifying a plurality of measured values, and identifying a plurality of estimated values based on models in the control system. The method further includes identifying a plurality of residual error values as the difference between the estimated values and the measured values. The method also defines a plurality of fuzzy logic membership functions for each residual error value. A degree of membership value is determined for each residual error value based on the membership functions. The degree of membership values are then analyzed to determine whether a potential fault exists.

    摘要翻译: 一种用于监测综合车辆控制系统中的传感器,致动器和子系统的健康状况的系统和方法。 该方法包括识别多个潜在故障,识别多个测量值,以及基于控制系统中的模型来识别多个估计值。 该方法还包括将多个残余误差值识别为估计值与测量值之间的差值。 该方法还为每个残差误差值定义多个模糊逻辑隶属函数。 基于隶属函数确定每个残差误差值的隶属度度。 然后分析隶属度的程度以确定是否存在潜在的故障。

    Method and apparatus to control coordinated wheel motors
    7.
    发明申请
    Method and apparatus to control coordinated wheel motors 有权
    控制协调轮电机的方法和装置

    公开(公告)号:US20070021875A1

    公开(公告)日:2007-01-25

    申请号:US11187493

    申请日:2005-07-22

    IPC分类号: G06F17/00

    摘要: A method and system providing coordinated torque control and speed control of a vehicle equipped with individual wheel motors, a steering system, and yaw-rate detection to achieve a desired yaw moment for the vehicle, based upon operator input and vehicle operation, is described. This includes determining a commanded steering angle, and a yaw-rate error, based upon the commanded steering angle and detected yaw-rate. A desired wheel motor yaw torque moment is calculated. First and second torque moments are calculated for inner and outer motored wheels, based upon the desired wheel motor yaw torque moment. First and second ideal wheel speeds are calculated for the inner and outer motored wheels, based upon the commanded steering angle. Torque and speed at each inner motored wheel and each outer motored wheel are calculated, based upon the yaw-rate error, the first and second torque moments, and the first and second ideal wheel speeds.

    摘要翻译: 描述了一种基于操作员输入和车辆操作来提供配备有各个车轮电动机的车辆的协同转矩控制和速度控制的方法和系统,其中转向系统和偏航率检测以实现用于车辆的期望的横摆力矩。 这包括基于所命令的转向角和检测到的偏航速率确定指令的转向角和偏航率误差。 计算期望的车轮电机偏航力矩。 基于期望的车轮电机偏航力矩计算内外轮的第一和第二扭矩。 根据指定的转向角度,为内外轮驱动计算第一和第二理想车轮速度。 基于偏航率误差,第一和第二扭矩以及第一和第二理想轮速,计算每个内动轮和每个外动轮的扭矩和速度。

    State-of-health monitoring and fault diagnosis with adaptive thresholds for integrated vehicle stability system
    8.
    发明申请
    State-of-health monitoring and fault diagnosis with adaptive thresholds for integrated vehicle stability system 有权
    健康状态监测和故障诊断与综合车辆稳定系统的自适应阈值

    公开(公告)号:US20070067078A1

    公开(公告)日:2007-03-22

    申请号:US11228913

    申请日:2005-09-16

    IPC分类号: G01M17/00

    摘要: A system and related method for monitoring the state of health of sensors in an integrated vehicle stability control system. In one embodiment, the system determines whether a yaw rate sensor, a lateral acceleration sensor or a hand-wheel angle sensor has failed. The system uses a plurality of models to generate estimates of the outputs of the sensors based on the actual sensor measurements. Residuals are generated as the difference between the measured value and each of the estimates for the particular sensor. The residuals are compared to a threshold to determine whether a fault flag will be set for each residual. The threshold for the hand-wheel angle sensor is an adaptive threshold because it does not have physical redundancy. If the fault flags for the residuals for each sensor have a particular pattern, then a fault is output for that sensor.

    摘要翻译: 一种用于监测综合车辆稳定性控制系统中的传感器的健康状态的系统和相关方法。 在一个实施例中,系统确定偏航率传感器,横向加速度传感器或手轮角度传感器是否已经失败。 该系统使用多个模型来基于实际的传感器测量来产生传感器的输出的估计。 残差产生为测量值与特定传感器的每个估计值之间的差值。 将残差与阈值进行比较,以确定是否为每个残差设置故障标志。 手轮角度传感器的阈值是自适应阈值,因为它没有物理冗余。 如果每个传感器的残差的故障标志具有特定的模式,则会为该传感器输出故障。

    Acceleration/deceleration induced real-time identification of maximum tire-road friction coefficient
    9.
    发明申请
    Acceleration/deceleration induced real-time identification of maximum tire-road friction coefficient 有权
    加速/减速引起实时识别最大轮胎路面摩擦系数

    公开(公告)号:US20070061061A1

    公开(公告)日:2007-03-15

    申请号:US11227311

    申请日:2005-09-15

    IPC分类号: B60T8/24

    CPC分类号: B60T8/172 B60T2210/12

    摘要: A method for classifying a road surface condition by estimating the maximum tire/road surface coefficient of friction and actively inducing acceleration or deceleration. In one embodiment, the induced acceleration/deceleration is provided by applying torque to the driven wheels of the vehicle. The speeds of the driven and non-driven wheels are measured. The tire/road surface coefficient of friction and the driven wheel slip ratio are calculated from the wheel speeds. The tire/road surface coefficient of friction and the wheel slip ratio are used to determine the slope of the wheel slip/coefficient of friction curve, which is used to classify the road surface condition.

    摘要翻译: 通过估计最大轮胎/路面摩擦系数并主动引起加速或减速来分类路面状况的方法。 在一个实施例中,通过向车辆的从动轮施加扭矩来提供感应加速/减速。 测量从动和非驱动轮的速度。 根据车轮速度计算轮胎/路面摩擦系数和从动轮滑移率。 轮胎/路面摩擦系数和车轮滑移率用于确定车轮滑移的斜率/摩擦系数曲线,用于对路面状况进行分类。

    Supervisory diagnostics for integrated vehicle stability system

    公开(公告)号:US20060020378A1

    公开(公告)日:2006-01-26

    申请号:US10899210

    申请日:2004-07-26

    IPC分类号: G06F19/00

    摘要: A supervisory diagnostics system and related method for providing vehicle diagnostics for an integrated vehicle stability system that monitors the state of health of sensors, actuators, vehicle sub-system and communication sub-systems that are used in the stability control system. The diagnostics system employs an algorithm to determine whether the various sensors, actuators and sub-systems are operating properly. The algorithm determines whether the components and sub-systems are outputting valid signals at a component level. The algorithm also determines whether a bias of the sensors is below a predetermined limit. The algorithm further determines whether a comparison between the outputs of redundant sensors is below a predetermined threshold for a predetermined period of time. The system also performs a state of health analytical comparison of all the system signals. The system will go in to a fail-safe mode if a fault is detected.