Pattern recognition approach to battery diagnosis and prognosis

    公开(公告)号:US08972213B2

    公开(公告)日:2015-03-03

    申请号:US12147556

    申请日:2008-06-27

    CPC分类号: G01R31/3679 G01R31/3651

    摘要: A method is provided for determining a state-of-health of a battery in a vehicle-during an engine cranking phase. An engine cranking phase is initiated. Characteristic data is recorded that includes battery voltage data and engine cranking speed data during the engine cranking phase. The characteristic data is provided to a pre-processing unit. The pre-processing unit normalizes the characteristic data for processing within a classifier. The normalized data is input o the classifier for determining the vehicle battery state-of-health. The classifier has a trained state-of-health decision boundary resulting from a plurality of trials in which predetermined characterization data is collected with known classes. The battery state-of-health is classified based on the trained state-of-health decision boundary.

    Method and system for vehicle parking assistance
    62.
    发明授权
    Method and system for vehicle parking assistance 有权
    车辆停车辅助方法和系统

    公开(公告)号:US08538631B2

    公开(公告)日:2013-09-17

    申请号:US11625909

    申请日:2007-01-23

    IPC分类号: G05D1/00 G06F7/00

    CPC分类号: B62D15/0285

    摘要: A method to assist steering of a vehicle equipped with an active steering system when operating in a reverse direction is provided. The method comprises monitoring vehicle operating characteristics and an operator steering input. Boundaries of a target region and a reference point are determined. A target steering angle range is calculated based upon the reference point and the target location. A controlled steering angle of the active steering system is corrected when the operator steering input is outside the target steering angle range. An aspect of the invention included determining the reference point comprising a point of intersection of a first vector and a second vector, the first vector parallel to and passing through a centerline of a rear axle of the vehicle and the second vector perpendicular to and passing through a centerline of an inside front steerable wheel of the vehicle.

    摘要翻译: 提供了一种在反向工作时辅助配备有主动转向系统的车辆的转向的方法。 该方法包括监视车辆操作特性和操作者转向输入。 确定目标区域和参考点的边界。 基于参考点和目标位置计算目标转向角范围。 当操作者转向输入超出目标转向角范围时,主动转向系统的受控转向角被校正。 本发明的一个方面包括确定参考点,其包括第一矢量和第二矢量的交点,平行于并经过车辆后轴的中心线的第一矢量和垂直于并经过的第二矢量 车辆内侧可转向车轮的中心线。

    Method for battery capacity estimation
    65.
    发明授权
    Method for battery capacity estimation 有权
    电池容量估算方法

    公开(公告)号:US08084996B2

    公开(公告)日:2011-12-27

    申请号:US12147539

    申请日:2008-06-27

    IPC分类号: H02J7/00 G01N27/416

    CPC分类号: G01R31/3679 G01R31/3624

    摘要: An embodiment contemplates a method for estimating a capacity of a battery. A state of charge is determined at a first instant of time and at a second instant of time. A difference in the state of charge is determined between the first instant of time and the second instant of time. A net coulomb flow is calculated between the first instant of time and the second instant of time. The battery capacity is determined as a function of the change in the state of charge and the net coulomb flow.

    摘要翻译: 实施例考虑了用于估计电池容量的方法。 在第一时刻和第二时刻确定充电状态。 在第一时刻和第二时刻之间确定充电状态的差异。 在第一时刻和第二时刻之间计算净库仑流量。 电池容量被确定为充电状态和净库仑流动的变化的函数。

    VEHICLE STABILITY ENHANCEMENT CONTROL ADAPTATION TO DRIVING SKILL BASED ON VEHICLE BACKUP MANEUVER
    67.
    发明申请
    VEHICLE STABILITY ENHANCEMENT CONTROL ADAPTATION TO DRIVING SKILL BASED ON VEHICLE BACKUP MANEUVER 审中-公开
    车辆稳定性增强控制适应驾驶技术基于车辆备份MANUUVER

    公开(公告)号:US20100209887A1

    公开(公告)日:2010-08-19

    申请号:US12388352

    申请日:2009-02-18

    IPC分类号: G09B19/16

    摘要: A system and method that classifies driver driving skill based on backup maneuvers. The system determines a vehicle speed signal and a vehicle backup gear position. The system determines that the vehicle has made a backup maneuver using the vehicle speed signal and the backup gear position and then classifies the driver's driving skill using selected discriminant features obtained or derived from the backup maneuver.

    摘要翻译: 一种基于备份操作对驾驶员驾驶技能进行分类的系统和方法。 系统确定车速信号和车辆后备档位。 系统确定车辆使用车速信号和备用档位进行备份操作,然后使用从备份机动获得或导出的选定判别特征对驾驶员的驾驶技能进行分类。

    Driver workload-based vehicle stability enhancement control
    68.
    发明授权
    Driver workload-based vehicle stability enhancement control 有权
    基于驾驶员工作量的车辆稳定性增强控制

    公开(公告)号:US07751960B2

    公开(公告)日:2010-07-06

    申请号:US11403359

    申请日:2006-04-13

    IPC分类号: B62D6/00

    摘要: A vehicle stability enhancement system that is adapted for an estimated driver workload. The system includes a driver workload estimation processor that estimates the driver workload based on certain factors, such as the vehicle speed or driver-behavior factors. The driver workload estimation is used to adjust the damping ratio and natural frequency in dynamic filters in a command interpreter to adjust a desired yaw rate signal and a desired side-slip signal. The driver workload estimation is also used to generate a yaw rate multiplication factor and a side-slip multiplication factor that modify a yaw rate stability signal and a side-slip stability signal in a feedback control processor that generates a stability control signal.

    摘要翻译: 适用于估计驾驶员工作量的车辆稳定性增强系统。 该系统包括驾驶员工作量估计处理器,其基于某些因素(例如车辆速度或驾驶员行为因素)来估计驾驶员工作负荷。 驱动器工作量估计用于调整命令解释器中的动态滤波器中的阻尼比和固有频率,以调整期望的横摆率信号和期望的侧滑信号。 驾驶员工作量估计还用于产生在产生稳定性控制信号的反馈控制处理器中修改横摆率稳定性信号和侧滑稳定性信号的横摆率倍增因子和侧滑倍增因子。

    PROACTIVE VEHICLE SYSTEM MANAGEMENT AND MAINTENANCE BY USING DIAGNOSTIC AND PROGNOSTIC INFORMATION
    69.
    发明申请
    PROACTIVE VEHICLE SYSTEM MANAGEMENT AND MAINTENANCE BY USING DIAGNOSTIC AND PROGNOSTIC INFORMATION 审中-公开
    使用诊断和预防信息的动态车辆系统管理和维护

    公开(公告)号:US20100042287A1

    公开(公告)日:2010-02-18

    申请号:US12190322

    申请日:2008-08-12

    IPC分类号: G06F19/00

    CPC分类号: G06Q10/06 G07C5/008

    摘要: A system and method for providing proactive vehicle system management and maintenance using diagnostic and prognostic information. Vehicle information is collected from vehicle sensors and/or sub-systems by an on-board module on the vehicle and/or at a remote facility where the information is wirelessly transmitted to the remote facility. The collected information is analyzed to determine the health of various systems, sub-systems and components so that the remaining useful life of the systems, sub-systems and components can be predicted. By utilizing the diagnostic and prognostic information, a vehicle control strategy can be reconfigured to minimize customer impact. Further, if a software problem is detected, temporary or permanent software fixes can be provided automatically and remotely through a remote service garage.

    摘要翻译: 一种使用诊断和预测信息提供主动式车辆系统管理和维护的系统和方法。 车辆信息从车辆传感器和/或子系统通过车辆上的车载模块和/或远程设施收集,其中信息被无线传输到远程设施。 分析收集到的信息以确定各种系统,子系统和组件的健康状况,以便可以预测系统,子系统和组件的剩余使用寿命。 通过利用诊断和预测信息,可以重新配置车辆控制策略,以尽量减少客户影响。 此外,如果检测到软件问题,可以通过远程服务车库自动和远程地提供临时或永久的软件修复。