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    • 9. 发明授权
    • Signal processing system for vehicular acceleration sensor
    • 车载加速度传感器信号处理系统
    • US4843555A
    • 1989-06-27
    • US97399
    • 1987-09-16
    • Toshihiro HattoriMasaki IshiharaHitoshi KasaiYasuyoshi Asagi
    • Toshihiro HattoriMasaki IshiharaHitoshi KasaiYasuyoshi Asagi
    • B60K26/04F02D11/10
    • B60K26/04F02D11/106F02D2250/16
    • Herein disclosed is a signal processing system for a motor vehicle with high responsiveness to the will of a driver. The output voltage of an acceleration sensor using a potentiometer is converted into a digital value by an analog-digital converter. The nonlinearity of the output voltage is corrected by polynominally calculating the digital value. This digital value is controlled by a central processing unit which processes the digital value to generate an acceleration signal having a linear relationship to the changes in the resistance of the potentiometer during actuation of an accelerator. The central processing unit further includes a memory for storing the acceleration signal at an idling position to determine a calibrated acceleration signal using a ratio of an actual acceleration signal obtained from the accelerator pedal to the stored value thereof.
    • 这里公开了一种用于机动车辆的信号处理系统,其对驾驶员的意愿具有高响应性。 使用电位计的加速度传感器的输出电压由模拟数字转换器转换为数字值。 通过多项式计算数字值来校正输出电压的非线性。 该数字值由中央处理单元控制,中央处理单元处理数字值以产生与加速器致动期间电位器的电阻变化呈线性关系的加速度信号。 中央处理单元还包括存储器,用于在怠速位置存储加速度信号,以使用从加速器踏板获得的实际加速度信号与其存储值的比率来确定校准加速度信号。