Operation of Electronic Stability Control Systems Using Data from a Plurality of Sources
    31.
    发明申请
    Operation of Electronic Stability Control Systems Using Data from a Plurality of Sources 有权
    电子稳定控制系统运行使用多种来源的数据

    公开(公告)号:US20080319622A1

    公开(公告)日:2008-12-25

    申请号:US11764869

    申请日:2007-06-19

    IPC分类号: G05D1/02

    摘要: A method for operating a vehicle electronic stability control (“ESC”) system utilizing values for a variable obtained from a primary source and a redundant source includes the steps of receiving a first value for the variable from the primary source, receiving a second value for the variable from the redundant source, generating a normalized value as a function of the first value and the second value, determining whether the primary source is operating correctly, utilizing the first value for operation of the vehicle ESC system if the primary source is operating correctly, and utilizing the second value for operation of the vehicle ESC system if the primary source is not operating correctly and the second value is not greater in absolute value than the normalized value.

    摘要翻译: 一种利用从主源和冗余源获得的变量的值来操作车辆电子稳定性控制(“ESC”)系统的方法包括以下步骤:从主源接收变量的第一值,接收第二值 来自冗余源的变量,产生作为第一值和第二值的函数的归一化值,如果主要源正常工作,则利用第一个值来运行车辆ESC系统,确定主要源是否正常工作 并且如果主要源不能正常工作并且第二值不大于绝对值,则利用第二个值进行车辆ESC系统的操作。

    Parametric Remedial Action Strategy for an Active Front Steer System
    32.
    发明申请
    Parametric Remedial Action Strategy for an Active Front Steer System 有权
    主动前导转向系统的参数补救措施策略

    公开(公告)号:US20080306654A1

    公开(公告)日:2008-12-11

    申请号:US11759395

    申请日:2007-06-07

    IPC分类号: B62D6/00 G05D1/00

    CPC分类号: B62D6/002 B62D5/008

    摘要: A vehicle parametric active front steering (AFS) system remedial action is described herein. AFS system modules inter-communicate via messages containing parameters. The AFS system detects a message error, determines an invalid parameter, and takes appropriate remedial action. An error is detected if an error condition is satisfied or if occurrence of incorrect messages reaches or exceeds a certain predetermined frequency. The AFS system takes the remedial action by setting default values of valid parameters corresponding to the invalid parameter.

    摘要翻译: 本文描述了车辆参数主动前转向(AFS)系统补救动作。 AFS系统模块通过包含参数的消息进行通信。 AFS系统检测到消息错误,确定无效参数,并采取适当的补救措施。 如果满足错误条件或者错误消息的发生达到或超过某个预定频率,则检测到错误。 AFS系统通过设置与无效参数对应的有效参数的默认值来采取补救措施。

    Methods and apparatus for adjusting frequency and/or PWM-based sensors
    33.
    发明授权
    Methods and apparatus for adjusting frequency and/or PWM-based sensors 有权
    用于调整频率和/或基于PWM的传感器的方法和装置

    公开(公告)号:US07383120B2

    公开(公告)日:2008-06-03

    申请号:US10895640

    申请日:2004-07-21

    IPC分类号: G06F17/00

    摘要: A sensor module adjustment circuit includes a device have a position between minimum and maximum positions. First and second position sensors sense the position of the device and generate first and second position values, respectively. A sensor module includes first and second signal conversion modules that generate first and second signal waveforms based on the first and second position values, that include first and second gain modules, and that vary a frequency and a duty cycle, respectively, of the first and second signal waveforms based on the first and second position values. A gain magnitude module determines first and second signal gains of the first and second gain modules, respectively. A signal preset module adjusts the first and second signal gains so that the first and second signal waveforms are equal to first and second predetermined signal waveforms, respectively, when the position of the device is fixed.

    摘要翻译: 传感器模块调节电路包括具有最小和最大位置之间的位置的装置。 第一和第二位置传感器感测装置的位置并分别产生第一和第二位置值。 传感器模块包括第一和第二信号转换模块,其基于包括第一和第二增益模块的第一和第二位置值产生第一和第二信号波形,并且分别改变第一和第二增益模块的频率和占空比, 基于第一和第二位置值的第二信号波形。 增益幅度模块分别确定第一和第二增益模块的第一和第二信号增益。 信号预设模块调整第一和第二信号增益,使得当装置的位置固定时,第一和第二信号波形分别等于第一和第二预定信号波形。

    Security Strategies for an Active Front Steer System
    34.
    发明申请
    Security Strategies for an Active Front Steer System 审中-公开
    主动前导系统的安全策略

    公开(公告)号:US20080065292A1

    公开(公告)日:2008-03-13

    申请号:US11530600

    申请日:2006-09-11

    IPC分类号: B62D6/00

    CPC分类号: B62D5/008 B62D6/002

    摘要: A vehicle active front steering (AFS) control system is described herein. The AFS system utilizes variable gear ratio and lead steer control methodologies. The AFS system utilizes independent and supervisory control systems to control the AFS system parameters in accordance with designated security metrics, to lower the time to lock the AFS system angle actuator in the event the security metrics are not met, and to lower likelihood of fault detection errors by checking a difference between a target road wheel angle and an actual road wheel angle obtained from a first control path and, for added security, by checking a difference between the target road wheel angle and the actual road wheel angle from a second control path, as a function of the vehicle velocity. The techniques described herein may check a value of an AFS control parameter from the first control path to the value of the same AFS control parameter from the second control path.

    摘要翻译: 本文描述了车辆主动前转向(AFS)控制系统。 AFS系统采用可变齿轮比和牵引转向控制方法。 AFS系统利用独立和监督控制系统根据指定的安全性度量来控制AFS系统参数,以便在不满足安全性度量的情况下降低锁定AFS系统角度执行器的时间,并降低故障检测的可能性 通过检查从第一控制路径获得的目标车轮角度与实际车轮角度之间的差异,并且为了增加的安全性,通过从第二控制路径检查目标车轮角度与实际车轮角度之间的差异, ,作为车辆速度的函数。 本文描述的技术可以从第一控制路径检查AFS控制参数的值到来自第二控制路径的相同AFS控制参数的值。

    Apparatus and method for processing sensor output signals
    35.
    发明授权
    Apparatus and method for processing sensor output signals 有权
    传感器输出信号处理装置及方法

    公开(公告)号:US07200469B2

    公开(公告)日:2007-04-03

    申请号:US10811377

    申请日:2004-03-25

    IPC分类号: G01M19/00 F02D11/00

    摘要: A method and apparatus are provided for generating a vehicle control signal that controls a function of a vehicle device associated with a sensed event. The apparatus comprises a first sensor that is configured to provide a first sensor output signal having a first magnitude that approximately corresponds to a sensed event with a first accuracy and second sensor that is configured to provide a second sensor output signal having a second magnitude that approximately corresponds to the sensed event with a second accuracy that is less than the first level of accuracy. The apparatus also comprises a processor that is configured to receive the first sensor output signal, receive the second sensor output signal, calculate a magnitude for the vehicle control signal based on an average of a weighted value of the first magnitude and the second magnitude, generate the vehicle control signal with the magnitude, and provide the vehicle control signal to the vehicle device.

    摘要翻译: 提供了一种用于产生控制与感测到的事件相关联的车辆装置的功能的车辆控制信号的方法和装置。 该装置包括第一传感器,其被配置为提供第一传感器输出信号,该第一传感器输出信号具有与第一精度近似对应于感测事件的第一幅度,第二传感器被配置为提供第二传感器输出信号, 对应于具有小于第一精度水平的第二精度的感测事件。 该装置还包括处理器,其被配置为接收第一传感器输出信号,接收第二传感器输出信号,基于第一幅度和第二幅度的加权值的平均值来计算车辆控制信号的幅度,生成 车辆控制信号具有大小,并向车辆装置提供车辆控制信号。

    PWM and variable frequency based position indicators
    36.
    发明授权
    PWM and variable frequency based position indicators 有权
    基于PWM和可变频率的位置指示器

    公开(公告)号:US07126463B2

    公开(公告)日:2006-10-24

    申请号:US10895641

    申请日:2004-07-21

    IPC分类号: B60Q1/00

    CPC分类号: B60K26/02

    摘要: A control system includes a device having a position between minimum and maximum positions. A first position sensor senses the position of the device and generates a first position value. A second position sensor senses the position of the device and generates a second position value. A sensor module communicates with the first and second position sensors and generates a single signal waveform based on the first and second position values. A frequency of the waveform is varied based on the first position value. A duty cycle of the waveform is varied based on the second position value. A conductor has a first end that communicates with the sensor module and a second end that communicates with a control module. The sensor module transmits the waveform to the control module on the conductor. The control module decodes the waveform to determine the first and second position values.

    摘要翻译: 控制系统包括具有在最小和最大位置之间的位置的装置。 第一位置传感器感测装置的位置并产生第一位置值。 第二位置传感器感测装置的位置并产生第二位置值。 传感器模块与第一和第二位置传感器通信,并且基于第一和第二位置值产生单个信号波形。 波形的频率基于第一位置值而变化。 波形的占空比基于第二位置值而变化。 导体具有与传感器模块通信的第一端和与控制模块通信的第二端。 传感器模块将波形传输到导体上的控制模块。 控制模块解码波形以确定第一和第二位置值。

    Methods and apparatus for producing a three-state single wire control
    38.
    发明授权
    Methods and apparatus for producing a three-state single wire control 失效
    用于生产三态单线控制的方法和装置

    公开(公告)号:US07042363B2

    公开(公告)日:2006-05-09

    申请号:US10794939

    申请日:2004-03-05

    IPC分类号: G08B21/00

    CPC分类号: B60R16/027

    摘要: Systems, methods and devices are described that provide a three-state control signal across a single electrical conductor. A three-position switch provides an output signal that selects between the first reference voltage, a second reference voltage and an intermediate voltage. The output from the switch is transmitted to a voltage divider circuit that produces a predetermined result when the switch output corresponds to the intermediate state. The output of the voltage divider is then provided to an analog-to-digital converter to decode the state of the switch. The three-state control signal may be used, for example, to place a vehicle component such as a windshield temperature controller or rear-window defogger into a desired one of three operating states. Similarly, the three-state concepts may be widely applied in many automotive, industrial, consumer electronics and other settings.

    摘要翻译: 描述了跨单个电导体提供三态控制信号的系统,方法和装置。 三位开关提供输出信号,其在第一参考电压,第二参考电压和中间电压之间进行选择。 当开关输出对应于中间状态时,来自开关的输出被传送到分压器电路,该分压器电路产生预定结果。 然后将分压器的输出提供给模数转换器以解码开关的状态。 例如,三态控制信号可以用于将诸如挡风玻璃温度控制器或后窗除雾器的车辆部件放置在三个操作状态中期望的一个中。 类似地,三状态概念可以广泛地应用于许多汽车,工业,消费电子和其他设置。

    Methods and apparatus for providing security for electronically-controlled cylinder activation and deactivation
    40.
    发明授权
    Methods and apparatus for providing security for electronically-controlled cylinder activation and deactivation 有权
    为电子控制气缸启动和停用提供安全的方法和设备

    公开(公告)号:US06808471B1

    公开(公告)日:2004-10-26

    申请号:US10431698

    申请日:2003-05-08

    IPC分类号: B60K4104

    摘要: Methods and apparatus are provided for ensuring that a throttle increase accompanying a change in the number of active cylinders of an internal combustion engine will not occur too long with more than a selected fraction of all the cylinders activated, so as to not startle a driver. The apparatus comprises an electronic controller that generates the throttle increase if less than all the cylinders are requested to be activated. A determination is made as to whether the number of cylinders being fueled is equal to or less than the selected fraction. A timer is started if the number of cylinders being fueled is greater than the selected fraction. The throttle increase is turned off if the amount of time measured by the timer exceeds a threshold before the number of cylinders being fueled becomes either less than or equal to the selected fraction.

    摘要翻译: 提供了方法和装置,用于确保随着内燃机的有效气缸数量的变化而增加的节气门增加不会发生太长时间,而超过所有气缸的选定部分被激活,从而不会使驾驶员震惊。 该装置包括一个电子控制器,如果小于所有气缸被要求激活,该控制器产生节气门增加。 确定被加油的气缸数是否等于或小于所选择的分数。 如果正在燃料的气缸数大于所选择的分数,则启动定时器。 如果在被燃料的气缸数量变得小于或等于所选择的部件之前,由定时器测量的时间量超过阈值,则节气门增加被关闭。