The invention discloses a driving speed early warning method and system on a ramp in the technical field of wheel excavator testing, and aims to solve the technical problems that an early warning function is lacked, and sufficient response time cannot be reserved for a driver. The method comprises the steps that the current vehicle driving acceleration and historical driving work log data are obtained, a first constraint condition is formed according to the current vehicle driving acceleration, the historical driving work log data and the warning speed on a ramp, and consideration of driver response time and the current vehicle driving acceleration is added; the early warning speed obtained based on the first constraint condition allows the driver to have redundancy of response time, so that the actual speed of the vehicle does not exceed the warning speed on the ramp when the driver begins to intervene in driving; and a second constraint condition is introduced to ensure that the speed of the driver after finishing the braking action is below the early warning speed, so that circulating alarm is avoided, and the dangerous condition that the actual speed exceeds the warning speed on the ramp when the driver performs intervention after the reaction time is also avoided.
本发明公开了一种轮式挖掘机测试技术领域的坡道上的行驶速度预警方法与系统,旨在解决缺少提前预警功能,未能给司机预留充足的反应时间的技术问题。其包括:获取当前车辆行驶加速度和历史行驶工作日志数据,根据当前车辆行驶加速度、历史行驶工作日志数据和坡道上的警戒速度形成第一约束条件,加入了司机反应时间与当前车辆行驶加速度的考量,使基于第一约束条件所获得的预警速度允许司机存在反应时间的冗余,使司机开始干预驾驶时车辆的实际速度不会超过坡道上的警戒速度;引入第二约束条件确保司机在结束刹车动作后的速度在预警速度以下,避免产生循环报警,也避免了司机在反应时间后进行干预时实际速度已经超过了坡道上的警戒速度的危险情况。
Early warning method and system for driving speed on ramp
一种坡道上的行驶速度预警方法与系统
2025-01-07
Patent
Electronic Resource
Chinese
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