Method and apparatus for determining a desired yaw rate for a vehicle
    1.
    发明授权
    Method and apparatus for determining a desired yaw rate for a vehicle 有权
    用于确定车辆的期望偏航率的方法和装置

    公开(公告)号:US08326494B2

    公开(公告)日:2012-12-04

    申请号:US12258205

    申请日:2008-10-24

    IPC分类号: B60R22/00 G01P3/04

    CPC分类号: G05D1/0891 B60T8/17551

    摘要: Methods and systems are provided for determining a desired yaw rate for a vehicle. The vehicle has a plurality of handling states and comprises a yaw rate sensor for determining an actual yaw rate. The method comprises selecting one of the plurality of handling states, determining the desired yaw rate for the vehicle based on the road wheel angle, the velocity, and the selected one of the plurality of handling states, and activating one or more vehicle stability control measures if the difference between the desired yaw rate and the actual yaw rate for the vehicle exceeds a predetermined threshold.

    摘要翻译: 提供了用于确定车辆的期望横摆角速度的方法和系统。 车辆具有多个处理状态,并且包括用于确定实际横摆率的偏航率传感器。 所述方法包括选择所述多个处理状态中的一个,基于所述车轮角度,所述速度和所述多个处理状态中选择的一个来确定所述车辆的期望横摆角速度,以及激活一个或多个车辆稳定性控制措施 如果车辆的期望横摆角速度和实际横摆角速度之间的差超过预定阈值。

    GPS-enhanced vehicle velocity estimation
    2.
    发明授权
    GPS-enhanced vehicle velocity estimation 有权
    GPS增强车速估计

    公开(公告)号:US09285485B2

    公开(公告)日:2016-03-15

    申请号:US12616933

    申请日:2009-11-12

    IPC分类号: G05D1/02 G01S19/52 G01C21/16

    CPC分类号: G01S19/52 G01C21/165

    摘要: A method is provided for estimating vehicle velocity for a vehicle using a single-antenna global positioning system (GPS). An absolute speed and a course angle of the vehicle is measured using the single-antenna GPS. The yaw rates of the vehicle are measured independently of the GPS. An integrated yaw rate of the vehicle is calculated as a function of the measured yaw rates over a period of time. A yaw angle is determined as a function of a reference yaw angle and the integrated yaw rate. Aside slip angle is calculated as a function of the estimated yaw angle and the course angle provided by the GPS. The vehicle velocity is determined as a function of the absolute speed and the side slip angle. The vehicle velocity is provided to a vehicle dynamic control application.

    摘要翻译: 提供一种用于使用单天线全球定位系统(GPS)估计车辆的车速的方法。 使用单天线GPS测量车辆的绝对速度和行驶角度。 独立于GPS测量车辆的偏航率。 根据一段时间内的测量的横摆角速度来计算车辆的积分横摆角速度。 偏航角被确定为参考偏航角和积分横摆角速度的函数。 作为由GPS提供的估计的偏航角和航向角的函数计算侧滑角。 车速是绝对速度和侧滑角的函数。 车辆速度被提供给车辆动态控制应用。

    METHOD FOR CONTROLLING TORQUE AT ONE OR MORE WHEELS OF A VEHICLE
    3.
    发明申请
    METHOD FOR CONTROLLING TORQUE AT ONE OR MORE WHEELS OF A VEHICLE 有权
    用于在一个或多个车辆上控制扭矩的方法

    公开(公告)号:US20120109483A1

    公开(公告)日:2012-05-03

    申请号:US12915432

    申请日:2010-10-29

    摘要: An exemplary method for controlling torque at one or more wheels of a vehicle, including controlling both positive torque (acceleration) and negative torque (braking) with a single torque command. According to one embodiment, the method interprets the acceleration and braking intent of the driver, takes into consideration certain special conditions (e.g., vehicle dynamic conditions like wheel slip, over- and under-steer, etc.), and generates one or more individual torque commands that are sent to individual wheels or corners of the vehicle. The individual torque commands may address certain chassis and powertrain functions like acceleration and braking, and may provide full-feature torque control (i.e., acceleration, braking, vehicle dynamics, etc.) on an individual wheel basis. It is also possible for the method to be used in a system where a number of the common chassis, powertrain and/or vehicle dynamic modules have been integrated into a single torque control module or the like.

    摘要翻译: 一种用于控制车辆的一个或多个车轮处的扭矩的示例性方法,包括利用单个扭矩命令来控制正转矩(加速度)和负转矩(制动)。 根据一个实施例,该方法解释驾驶员的加速和制动意图,考虑到某些特殊条件(例如,车辆滑动,过度转向和转向不足等)的车辆动态条件,并且产生一个或多个个体 发送到车辆的各个车轮或角落的扭矩指令。 各个扭矩命令可以解决特定的底盘和动力系统的功能,如加速和制动,并且可以在单独的车轮基础上提供全功能扭矩控制(即,加速,制动,车辆动力学等)。 该方法也可以用于将多个公共底盘,动力系和/或车辆动态模块集成到单个扭矩控制模块等中的系统中。

    DYNAMIC OBSERVER FOR THE ESTIMATION OF VEHICLE LATERAL VELOCITY
    5.
    发明申请
    DYNAMIC OBSERVER FOR THE ESTIMATION OF VEHICLE LATERAL VELOCITY 有权
    用于车辆侧向速度估计的动态观测

    公开(公告)号:US20100131229A1

    公开(公告)日:2010-05-27

    申请号:US12276965

    申请日:2008-11-24

    IPC分类号: G01P3/00 G06F15/00

    摘要: A system and method for estimating vehicle lateral velocity that defines a relationship between front and rear axle lateral forces and front and rear axle side-slip angles. The method includes providing measurements of vehicle yaw-rate, lateral acceleration, longitudinal speed, and steering angle. The method also includes using these measurements to provide a measurement of the front and rear axle forces. The method calculates a front axle lateral velocity and a rear axle lateral velocity, and calculates a front axle side-slip angle based on the rear axle lateral velocity and a rear axle side-slip angle based on the front axle lateral velocity. The method then estimates front and rear axle forces, and selects a virtual lateral velocity that minimizes an error between the estimated and measured lateral axle forces. The method then provides an estimated vehicle lateral velocity using the selected virtual lateral velocity.

    摘要翻译: 一种用于估计车辆横向速度的系统和方法,其限定前后轴向力和前后轴侧滑角之间的关系。 该方法包括提供车辆偏航率,横向加速度,纵向速度和转向角的测量。 该方法还包括使用这些测量来提供前后轴力的测量。 该方法计算前桥横向速度和后桥横向速度,并根据前桥横向速度和基于前桥横向速度的后桥侧滑角计算前轴侧滑角。 然后,该方法估计前轴和后轴力,并且选择使估计和测量的横向轴力之间的误差最小化的虚拟横向速度。 该方法然后使用所选择的虚拟横向速度提供估计的车辆横向速度。

    System and method for ABS stability control

    公开(公告)号:US06502029B2

    公开(公告)日:2002-12-31

    申请号:US09754497

    申请日:2001-01-03

    申请人: Kevin A. O'Dea

    发明人: Kevin A. O'Dea

    IPC分类号: G06F1550

    摘要: A system and method for ABS stability control is provided, the method comprising the steps of determining whether a first wheel is in an ABS mode; determining whether the first wheel is in an apply mode; determining whether a second parallel wheel is in the release mode; calculating an adjusted wheel slip if the first wheel is in the ABS mode, the first wheel is in the apply mode, and the second parallel wheel is in the release mode; and determining a control mode for the first wheel using the adjusted wheel slip.

    System and method for vehicle stability enhancement control during ABS operation
    7.
    发明授权
    System and method for vehicle stability enhancement control during ABS operation 失效
    ABS操作期间车辆稳定性增强控制的系统和方法

    公开(公告)号:US06438483B1

    公开(公告)日:2002-08-20

    申请号:US09754689

    申请日:2001-01-03

    IPC分类号: B60T800

    CPC分类号: B60T8/17616 B60T2270/313

    摘要: A system and method of vehicle stability enhancement control during ABS operation, the method comprising the steps of determining whether ABS mode is active; determining whether VSE is required; calculating a target wheel speed for each wheel if ABS mode is active and VSE is required; calculating an adjusted wheel slip for each wheel by subtracting the wheel speed for each wheel from the target wheel speed for each wheel and dividing the difference by the target wheel speed for each wheel; and determining an ABS control mode for each wheel using the adjusted wheel slip. The method further provides the step of calculating the target wheel speed for each wheel, in which the step of calculating the target wheel speed for each wheel further comprises adding a VSE modification term for each wheel to the vehicle speed to calculate the target wheel speed.

    摘要翻译: 一种在ABS操作期间车辆稳定性增强控制的系统和方法,所述方法包括以下步骤:确定ABS模式是否有效; 确定是否需要VSE; 如果ABS模式有效并且需要VSE,则计算每个车轮的目标车轮速度; 通过从每个车轮的目标车轮速度减去每个车轮的车轮速度并将差除以每个车轮的目标车轮速度来计算每个车轮的调整车轮滑动; 以及使用所调节的车轮滑移来确定每个车轮的ABS控制模式。 该方法还提供计算每个车轮的目标车轮速度的步骤,其中计算每个车轮的目标车轮速度的步骤还包括将每个车轮的VSE修改项加到车速以计算目标车轮速度。

    Method and system for controlling a vehicle engine during a performance shifting maneuver
    8.
    发明授权
    Method and system for controlling a vehicle engine during a performance shifting maneuver 有权
    在执行换档操作期间控制车辆发动机的方法和系统

    公开(公告)号:US08403812B2

    公开(公告)日:2013-03-26

    申请号:US12362973

    申请日:2009-01-30

    IPC分类号: B60W10/04

    摘要: An exemplary engine control system and method for controlling a vehicle engine during certain shifting maneuvers that involve a manual transmission, such as a ‘no-lift upshift’ where the driver does not release the accelerator pedal during manual shifting. The engine control method may be used to temporarily control the vehicle engine during a no-lift upshift maneuver so that the engine performs well without reaching excessively high engine speeds that could result in vehicle instability or damage. The engine control method described herein may be used with other performance driving maneuvers and techniques as well, such as a power shift maneuvers, etc.

    摘要翻译: 在涉及手动变速器的某些换档操作期间控制车辆发动机的示例性发动机控制系统和方法,例如在手动变速期间驾驶员不释放加速器踏板的无升档升档。 发动机控制方法可以用于在不提升升档操作期间临时控制车辆发动机,使得发动机性能良好而不会达到可能导致车辆不稳定性或损坏的过高的发动机转速。 这里描述的发动机控制方法也可以与其它的演奏驾驶操作和技术一起使用,例如动力换档操纵等。

    Method and system for controlling a vehicle engine during performance driving events
    9.
    发明授权
    Method and system for controlling a vehicle engine during performance driving events 有权
    在执行驾驶事件期间控制车辆发动机的方法和系统

    公开(公告)号:US08290666B2

    公开(公告)日:2012-10-16

    申请号:US12390697

    申请日:2009-02-23

    IPC分类号: G06F17/00

    摘要: A system and method for controlling a vehicle engine during one or more performance driving events, such as a performance takeoff, shifting or cornering event. The engine control system may be used to maintain stability when the vehicle is being driven in a competitive or aggressive fashion by temporarily controlling the vehicle engine through the manipulation of engine torque, engine speed or some other means. If the engine control system receives competing command signals from different vehicle subsystems, then the system may arbitrate or otherwise manage the competing command signals so that different subsystems can function together properly. In one embodiment, the engine control system blends the commands signals from two or more subsystems.

    摘要翻译: 一种用于在一个或多个性能驾驶事件期间控制车辆发动机的系统和方法,例如性能起飞,换挡或转弯事件。 发动机控制系统可以用于通过通过操纵发动机扭矩,发动机转速或其它一些方式临时控制车辆发动机以有竞争力或侵略性的方式驱动车辆时保持稳定性。 如果发动机控制系统从不同的车辆子系统接收到竞争的命令信号,则系统可以仲裁或以其他方式管理竞争的命令信号,使得不同的子系统可以正常地一起工作。 在一个实施例中,发动机控制系统混合来自两个或多个子系统的命令信号。

    Estimation of surface lateral coefficient of friction
    10.
    发明授权
    Estimation of surface lateral coefficient of friction 有权
    表面侧向摩擦系数的估计

    公开(公告)号:US08078351B2

    公开(公告)日:2011-12-13

    申请号:US12277027

    申请日:2008-11-24

    IPC分类号: G06F7/00

    摘要: A system and method for estimating surface coefficient of friction in a vehicle system. The method includes providing a kinematics relationship between vehicle yaw-rate, vehicle speed, vehicle steering angle and vehicle front and rear axle side-slip angles that is accurate for all surface coefficient of frictions on which the vehicle may be traveling. The method defines a nonlinear function for the front and rear axle side-slip angles relating to front and rear lateral forces and coefficient of friction, and uses the nonlinear function in the kinematics relationship. The method also provides a linear relationship of the front and rear axle side-slip angles and the front and rear lateral forces using the kinematics relationship. The method determines that the vehicle dynamics have become nonlinear using the linear relationship and then estimates the surface coefficient of friction when the vehicle dynamics are nonlinear.

    摘要翻译: 一种用于估计车辆系统中的摩擦力表面系数的系统和方法。 该方法包括提供车辆偏航率,车辆速度,车辆转向角度以及车辆前后侧滑角之间的运动学关系,其对于车辆可能在其上行驶的摩擦的所有表面系数是准确的。 该方法定义了与前后侧向力和摩擦系数有关的前轴和后桥侧滑角的非线性函数,并在运动学关系中使用非线性函数。 该方法还使用运动学关系提供前后轴侧滑角与前后侧向力的线性关系。 该方法通过线性关系确定车辆动力学变为非线性,然后估计当车辆动力学是非线性时的摩擦表面系数。