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发明授权
CN107462423B 制动踏板位置检测的方法及装置 有权

制动踏板位置检测的方法及装置
摘要：
一种制动踏板位置检测的方法及装置，所述方法包括:获取制动踏板的零位电压U0；检测所述制动踏板受到的制动力为零时所对应的制动踏板传感器的输出电压Ub；根据所述制动踏板受到的制动力为零时所对应的制动踏板传感器的输出电压Ub与所述零位电压U0的关系，判断是否更新所述零位电压U0；当确定更新所述零位电压U0时，根据所述制动踏板传感器的当前输出电压U、更新后的所述零位电压U0及最大输出电压UF的关系，检测所述制动踏板的位置，其中：所述最大输出电压UF为所述制动踏板达到最大行程时，所对应的所述制动踏板传感器的输出电压。采用上述方案可以提高制动踏板位置检测的精确性，以提高车辆的安全性。
摘要（英）：

The invention provides a method and a device for brake pedal position detection. The method comprises the steps of acquiring a null voltage U0 of a brake pedal; detecting an output voltage Ub of a brake pedal sensor corresponding to the condition that braking force applied to the brake pedal is zero; according to the relation between the output voltage Ub of the brake pedal sensor corresponding to the condition that braking force applied to the brake pedal is zero and the null voltage U0, judging whether to update the null voltage U0; when determining to update the null voltage U0, according to the relation among a current output voltage U of the brake pedal sensor, the updated null voltage U0 and the maximum output voltage UF, detecting the position of the brake pedal, wherein the maximum output voltage UF is the output voltage of the brake pedal sensor corresponding to the condition that the brake pedal reaches the maximum stroke. The method and the device can improve the accuracy of brake pedal position detection and improve the safety of vehicles.

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