车辆电动后背门延迟关闭功能的设计开发

李光　谢志鹏　付玲玉　吴佳佳　廖平纬

摘 要：當用户停好车辆，准备从后备箱搬走较大行李，这时双手抱着行李箱，无法空出手来操作电动后背门开关，只能将行李箱放地上再去操作电动后背门开关，才能完成后备箱关闭，由此不能很好的体现出电动后背门的便利性和价值性。可以通过以下论述来解决此问题，需要用户携带车辆智能钥匙，通过连按两下电动后背门的关闭开关可激活电动后背门延迟关闭功能;当此功能被激活后有30秒的有效期，在这30秒内电动后背门模块的内置蜂鸣器将发出周期提示音，用来提示这个功能被激活;在前10秒蜂鸣器鸣叫频率比较缓和，当进入第二个10秒时蜂鸣器名叫频率比较急促，若进入最后10秒时蜂鸣器名叫频率将非常紧急，直到这30秒时间用完蜂鸣器停止名叫，该功能自动执行超时退出，电动后背门保持当前静止状态。但是若在此功能的激活有效期内，用户抱着行李箱带着智能钥匙离开车辆后背门区域，电动后背门则立即执行自动关闭功能，并且当后背门完全关闭好以后，整车自动执行上锁功能;尚若用户不想使用电动后背门延迟关闭功能，直接按下电动后背门的关闭开关，这时电动后背门退出延迟关闭功能并且立即执行自动关闭功能。

关键词：汽车控制 电动后背门 感应式电动后背门 电动后背门延迟自动关闭

Design and Development of Delayed Closing Function of Vehicle Electric Back Door

Li Guang Xie Zhipeng Fu Lingyu Wu Jiajia Liao Pingwei

Abstract：When the user parks the vehicle and prepares to remove the large luggage from the trunk， at this time， he is holding the luggage with both hands and cannot free his hands to operate the electric back door switch， and can only put the luggage on the ground before operating the electric back. The door can be opened and closed to complete the closing of the trunk， which cannot well reflect the convenience and value of the electric back door.This problem can be solved by the following discussion. The user needs to carry the vehicle's smart key， and the delayed closing function of the electric back door can be activated by double-clicking the closing switch of the electric back door; when this function is activated， there is a 30-second validity period. During these 30 seconds， the built-in buzzer of the electric rear door module will emit a periodic beep to indicate that this function is activated; in the first 10 seconds， the buzzer frequency is relatively slow， and when the second 10 seconds is entered The calling frequency of the buzzer is relatively rapid. If the calling frequency of the buzzer is very urgent in the last 10 seconds， the buzzer will stop calling until the 30 seconds are used up， and the function will automatically execute a timeout exit， and the electric back door will remain The current static state.However， if the user leaves the back door area of the vehicle with the smart key during the activation period of this function， the electric back door will immediately execute the automatic closing function， and when the back door is completely closed， the vehicle will automatically close. Perform the lock function; if the user does not want to use the delayed closing function of the electric back door， directly press the closing switch of the electric back door， then the electric back door exits the delayed closing function and immediately executes the automatic closing function.