METHOD AND DEVICE FOR DETERMINING A COEFFICIENT OF FRICTION
    1.
    发明申请
    METHOD AND DEVICE FOR DETERMINING A COEFFICIENT OF FRICTION 审中-公开
    用于确定摩擦系数的方法和装置

    公开(公告)号:US20110015906A1

    公开(公告)日:2011-01-20

    申请号:US12741245

    申请日:2008-11-07

    IPC分类号: G06F17/10 G06F17/11

    CPC分类号: B60T8/172 B60T2210/12

    摘要: In a method for determining a coefficient of friction between a motor vehicle tire of a motor vehicle and the surface of a roadway, a first coefficient of friction parameter (μest—used,ij) is determined using a model (RM) in which a functional correlation between the first coefficient of friction parameter (μest—used,ij) and a slip (Sij) of the motor vehicle tire is set. A second coefficient of friction parameter (μquasi—meas—used,ij) is determined from the quotient between a longitudinal force (FL) and a vertical force (FZ) of the motor vehicle tire. The first and the second coefficient of friction parameters (μest—used,ij, μquasi—meas—used,ij) are used to determine the coefficient of friction (μR,ij) by a recursive estimation algorithm.

    摘要翻译: 在用于确定机动车辆的机动车辆轮胎和道路表面之间的摩擦系数的方法中,使用模型(RM)来确定第一摩擦系数参数(μest-used,ij),其中功能 设定第一摩擦系数参数(μest-used,ij)与机动车辆轮胎的滑移(Sij)之间的相关性。 根据机动车辆轮胎的纵向力(FL)和垂直力(FZ)之间的商确定第二摩擦系数参数(μquasi-meas-used,ij)。 使用第一和第二摩擦系数参数(μest-used,ij,μquasi-meas-used,ij)通过递归估计算法来确定摩擦系数(μR,ij)。

    Method and apparatus for determining a signal offset of a pitch rate sensor
    2.
    发明申请
    Method and apparatus for determining a signal offset of a pitch rate sensor 审中-公开
    用于确定俯仰速率传感器的信号偏移的方法和装置

    公开(公告)号:US20110004359A1

    公开(公告)日:2011-01-06

    申请号:US12445976

    申请日:2007-09-14

    IPC分类号: G06F17/13

    摘要: In order to determine a signal offset (OFF_SIG) of a pitch rate sensor of a vehicle (2), a signal (OMEGA_TETA_SIG) from the pitch rate sensor is detected. Longitudinal acceleration (ACC) of the vehicle (2) is determined. A time derivative (ACC_DRV) of the longitudinal acceleration (ACC) is determined. A check is carried out in order to determine whether a magnitude of the time derivative (ACC_DRV) of the longitudinal acceleration (ACC) is less than a first predefined threshold value (THD—1). The signal offset (OFF_SIG) of the pitch rate sensor is determined on the basis of the signal (OMEGA_TETA_SIG) from the pitch rate sensor if the magnitude of the time derivative (ACC_DRV) of the longitudinal acceleration (ACC) is less than the first predefined threshold value (THD—1).

    摘要翻译: 为了确定车辆(2)的俯仰速率传感器的信号偏移(OFF_SIG),检测来自俯仰速率传感器的信号(OMEGA_TETA_SIG)。 确定车辆(2)的纵向加速度(ACC)。 确定纵向加速度(ACC)的时间导数(ACC_DRV)。 执行检查以便确定纵向加速度(ACC)的时间导数(ACC_DRV)的大小是否小于第一预定阈值(THD-1)。 如果纵向加速度(ACC)的时间导数(ACC_DRV)的大小小于第一预定义的距离,则基于来自俯仰速率传感器的信号(OMEGA_TETA_SIG)来确定俯仰速率传感器的信号偏移(OFF_SIG) 阈值(THD-1)。

    Method and Device for Monitoring the Noise from a Sensor
    3.
    发明申请
    Method and Device for Monitoring the Noise from a Sensor 有权
    用于监测传感器噪声的方法和装置

    公开(公告)号:US20100299083A1

    公开(公告)日:2010-11-25

    申请号:US12440026

    申请日:2007-05-29

    IPC分类号: G06F15/00 G01N19/02

    摘要: A method and device for monitoring the noise from a sensor and a use of the method in automobiles for determining a frictional value between tyres of a motor vehicle and a road surface, in particular an economical and reliable method for monitoring a sensor noise and a corresponding device for obtaining, amongst other things, system-relevant information may be achieved, wherein an influence on spectral components of the sensor noise signal is determined and compared with set values.

    摘要翻译: 一种用于监测来自传感器的噪声的方法和装置,以及在汽车中使用该方法以确定机动车辆的轮胎和路面之间的摩擦值,特别是用于监测传感器噪声的经济可靠的方法和相应的 可以实现用于获得系统相关信息的装置,其中确定对传感器噪声信号的频谱分量的影响并与设定值进行比较。

    METHOD AND APPARATUS FOR OPERATING A VEHICLE
    4.
    发明申请
    METHOD AND APPARATUS FOR OPERATING A VEHICLE 失效
    用于操作车辆的方法和装置

    公开(公告)号:US20100235036A1

    公开(公告)日:2010-09-16

    申请号:US12376676

    申请日:2007-05-30

    IPC分类号: B60W40/10 B62D15/02

    CPC分类号: B60T8/172 B60T2250/04

    摘要: In a method for operating a vehicle (1) having a plurality of wheels (3) and wheel sensors (5) which are associated with said wheels and whose measurement signals are representative of angular speeds of the respective wheels (3), respective scaling values (SV1, SV2, SH1, SH2) are adapted when a predefined condition is met, the condition depending on the yaw rate (GR) of the vehicle and/or on the steering angle (LW) of the front/rear wheels.

    摘要翻译: 在具有与所述车轮相关联的多个车轮(3)和车轮传感器(5)的车辆(1)的方法中,其测量信号代表各车轮(3)的角速度,各自的缩放值 (SV1,SV2,SH1,SH2)适应于当预定条件满足时,条件取决于车辆的偏航率(GR)和/或前/后轮的转向角(LW)。

    Method and device for monitoring the noise from a sensor
    6.
    发明授权
    Method and device for monitoring the noise from a sensor 有权
    用于监测传感器噪声的方法和装置

    公开(公告)号:US08731855B2

    公开(公告)日:2014-05-20

    申请号:US12440026

    申请日:2007-05-29

    IPC分类号: G01R29/26

    摘要: A method and device for monitoring the noise from a sensor and a use of the method in automobiles for determining a frictional value between tires of a motor vehicle and a road surface, in particular an economical and reliable method for monitoring a sensor noise and a corresponding device for obtaining, amongst other things, system-relevant information may be achieved, wherein an influence on spectral components of the sensor noise signal is determined and compared with set values.

    摘要翻译: 一种用于监测来自传感器的噪声的方法和装置,以及在汽车中使用该方法以确定机动车辆的轮胎和路面之间的摩擦值,特别是用于监测传感器噪声的经济可靠的方法和相应的 可以实现用于获得系统相关信息的装置,其中确定对传感器噪声信号的频谱分量的影响并与设定值进行比较。

    Method for the determination of long-term offset drifts of acceleration sensors in motor vehicles
    7.
    发明授权
    Method for the determination of long-term offset drifts of acceleration sensors in motor vehicles 有权
    用于确定机动车辆中加速度传感器的长期偏移漂移的方法

    公开(公告)号:US08489355B2

    公开(公告)日:2013-07-16

    申请号:US12093539

    申请日:2006-09-08

    IPC分类号: G01C17/38

    摘要: A method for determining long-term offset drifts of acceleration sensors in a motor vehicle is provided. In one step, the longitudinal vehicle speed is determined in the vehicle's center of gravity. In another step, the share of the driving dynamics in the longitudinal reference acceleration formula and in the transversal reference acceleration formula is calculated from the longitudinal vehicle speed and the yaw rate. In yet another step, the share of the driving dynamics in the reference acceleration on the vehicle level formula is calculated by converting the driving dynamic reference accelerations formula calculated for the center of gravity to the position formula and the orientation of the sensor formula. In a further step, the long-term offset drift of the sensor is determined from the measured values of the sensor and the share of the measured value in the driving dynamics by means of a situation-dependent averaging process.

    摘要翻译: 提供一种用于确定机动车辆中的加速度传感器的长期偏移漂移的方法。 在一个步骤中,在车辆的重心中确定纵向车速。 在另一个步骤中,根据纵向车速和横摆率计算纵向参考加速度公式和横向参考加速度公式中驾驶动力学的份额。 在另一个步骤中,通过将对于重心计算的驾驶动态参考加速度公式转换为位置公式和传感器公式的方向来计算参考加速度对车辆等级公式的驾驶动态的份额。 在另一步骤中,传感器的长期偏移漂移由传感器的测量值和驾驶动态中测量值的份额通过情况相关的平均过程来确定。

    Method for the Determination of Long-Term Offset Drifts of Acceleration Sensors in Motor Vehicles
    8.
    发明申请
    Method for the Determination of Long-Term Offset Drifts of Acceleration Sensors in Motor Vehicles 有权
    确定机动车辆加速度传感器长期偏移漂移的方法

    公开(公告)号:US20090037129A1

    公开(公告)日:2009-02-05

    申请号:US12093539

    申请日:2006-09-08

    IPC分类号: G01P21/00 G01P15/00

    摘要: A method for determining long-term offset drifts of acceleration sensors in a motor vehicle has the steps:—the longitudinal vehicle speed Vx is determined in the vehicle's center of gravity;—the share of the driving dynamics in the longitudinal reference acceleration formula (I) and in the transversal reference acceleration formula (II) is calculated from the longitudinal vehicle speed Vx and the yaw rate ωZ;—the share of the driving dynamics in the reference acceleration on the vehicle level formula (III) is calculated by converting the driving dynamic reference accelerations formula (IV) calculated for the center of gravity to the position formula (V) and the orientation Θ of the sensor formula (VI);—the long-term offset drift of the sensor is determined from the measured values of the sensor and the share of the measured value in the driving dynamics by means of a situation-dependent averaging process.

    摘要翻译: 一种用于确定机动车辆中加速度传感器的长期偏移漂移的方法具有以下步骤: - 在车辆重心中确定纵向车速Vx; - 纵向参考加速度公式(I )和横向参考加速度公式(II)中,根据纵向车速Vx和横摆率ω_ZZ计算横坐标加速度公式(II),车辆等级公式(III)的基准加速度中的驾驶动态的份额通过转换驾驶 计算出的重心位置公式(V)的动态参考加速度公式(IV)和传感器公式(VI)的方位角; - 传感器的长期偏移漂移由 传感器和通过情况相关的平均过程在驾驶动态中的测量值的份额。

    Method for operating a tire pressure monitoring system for a motor vehicle, tire pressure monitoring system and motor vehicle
    9.
    发明授权
    Method for operating a tire pressure monitoring system for a motor vehicle, tire pressure monitoring system and motor vehicle 有权
    用于操作汽车轮胎压力监测系统,轮胎压力监测系统和机动车辆的方法

    公开(公告)号:US08978460B2

    公开(公告)日:2015-03-17

    申请号:US14001246

    申请日:2012-02-21

    IPC分类号: B60C23/02 B60C23/04

    摘要: A method of operating a tire pressure monitoring system for a motor vehicle includes detection of a stationary state of the motor vehicle by way of a centrifugal force measured on the wheel side or a vehicle speed measured on the vehicle side, during a time period during which the vehicle speed is zero; detection and vehicle-side storage of an acceleration force in each wheel during the time period, and renewed detection of an acceleration force in each wheel at the end of the time period. The detected acceleration force in each wheel is transmitted to a vehicle-side control device and compared with earlier-stored acceleration forces associated with the respective wheel position. The tire pressure system is initialized following the stationary state of the motor vehicle in the event of a deviation in any of the wheels. There is also provided a tire pressure monitoring system and a motor vehicle.

    摘要翻译: 一种操作机动车辆的轮胎压力监测系统的方法包括通过在车轮侧测量的离心力或在车辆侧测量的车速来检测机动车辆的静止状态,在此期间 车速为零; 在该时间段内检测和车辆侧存储每个车轮中的加速力,并且在该时间段结束时重新检测每个车轮中的加速力。 每个车轮中检测到的加速力传递到车辆侧控制装置,并与先前存储的与相应车轮位置相关联的加速力进行比较。 在任何车轮偏离的情况下,轮胎压力系统被初始化为机动车辆的静止状态。 还提供了轮胎压力监测系统和机动车辆。