The invention belongs to the technical field of auxiliary driving, and particularly relates to an auxiliary driving decision-making method for a large truck during continuous long and steep downhill driving. The auxiliary decision-making method comprises the following steps of a braking decision-making method, wherein a braking strategy decision is provided for a driver during downhill according to the predicted slope bottom hub temperature. The following decision-making method comprises the following steps: calculating the following running parking gap of the truck according to the hub temperature of the truck, and proposing decisions of the following distance and the running speed of the truck. According to the overspeed decision-making method, the maximum driving speed decision-making method when the truck passes through the cutting circle curve is provided based on the truck critical speed calculated according to the brake distance side length caused by hub temperature rise. The real-time driving behavior auxiliary decision making of the truck in the downhill process can be achieved, and brake failure accidents, fixture collision accidents and rear-end collision accidents when the truck runs in a continuous downhill scene are reduced. According to the method, support can be provided for traffic operation risk blocking of continuous long and steep downhill road sections, and an auxiliary decision-making library of automatic driving behaviors of trucks can be enriched.
本发明属于辅助驾驶技术领域,尤其涉及一种大型货车连续长陡下坡行驶时的辅助驾驶决策方法。辅助决策方法包括以下步骤:制动决策方法:根据预测的坡底轮毂温度对驾驶员提供下坡时的制动策略决策。跟车决策方法:根据货车轮毂温度计算货车跟车行驶停车间隙,提出货车跟车距离、行驶速度的决策。超速决策方法:基于轮毂温升导致的刹车距离边长计算出的货车临界速度,提出货车通过路堑圆曲线时的最大行驶速度决策方法。本发明可以实现货车在下坡过程中实时驾驶行为辅助决策,减少货车行驶于连续下坡场景时的刹车失灵事故、撞固定物事故和追尾事故。本发明可以为连续长陡下坡路段交通运行风险阻断提供支撑,并能丰富货车自动驾驶行为的辅助决策库。
Auxiliary driving decision-making method for large truck passing through continuous long and steep downhill
一种大型货车通行连续长陡下坡时的辅助驾驶决策方法
2024-12-17
Patent
Electronic Resource
Chinese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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