The invention relates to a commercial vehicle weight calculation method and device and a storage medium, and relates to the technical field of vehicle weight calculation. Traction force and acceleration are calculated through driving parameters of the commercial vehicle; calculating the vehicle weight at adjacent moments by using the traction force, the driving resistance and the acceleration, and obtaining a vehicle weight approximate value by taking the driving resistance at two adjacent moments to be consistent; a recursive least square system equation is constructed according to the vehicle weight approximate value, the acceleration difference at the adjacent moments and the traction force difference at the adjacent moments, recursion is conducted through a forgetting factor recursive least square algorithm, at least three independent vehicle weight rough estimation values are obtained, and the independent vehicle weight rough estimation values meeting the requirement are taken to calculate the previous vehicle weight average value; and performing weighted calculation on a current-time vehicle weight precise estimation value by using the previous-time vehicle weight average value and the current-time vehicle weight rough estimation value. According to the method, the quantity of parameters needed by prediction emphasizing is small, the vehicle weight estimation error when the vehicle is unstable is avoided by combining the previous vehicle weight average value and the current vehicle weight rough estimation value, and accurate prediction of the vehicle weight is achieved.
本发明涉及的一种商用车车重计算方法、装置及存储介质,涉及汽车车重计算技术领域。本发明通过商用车的行驶参数计算牵引力和加速度;利用牵引力、行车阻力和加速度计算相邻时刻的车重,取两相邻时刻的行车阻力一致,得到车重近似值;以车重近似值、相邻时刻的加速度差和相邻时刻的牵引力差构建递归最小二乘系统方程,利用遗忘因子递推最小二乘算法进行递推,得到至少三个独立的车重粗估值,取符合要求的独立的车重粗估值的计算前次车重平均值;利用前次车重平均值和当前次车重粗估值加权计算当前次车重精估值。本发明预测侧重所需的参数量少,且结合前次车重平均值和当前次车重粗估值避免车辆不稳定时车重估计错误,实现车重的准确预测。
Commercial vehicle weight calculation method and device and storage medium
一种商用车车重计算方法、装置及存储介质
2023-12-22
Patent
Electronic Resource
Chinese
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