The invention discloses a safe distance calculation method for a self-adaptive cruise control system of an intelligent networked automobile, which comprises the following steps of: acquiring a braking performance parameter, automobile state information and an automobile type of a front automobile by using an automobile-to-automobile communication function; the vehicle obtains braking performance parameters and vehicle state information of the vehicle, and road condition information is collected through the vehicle-to-road communication function; the brake efficiency attenuation degree of a brake of the vehicle is judged through a brake state sensing formula; calculating the maximum braking deceleration correction factor of the front vehicle and the vehicle; calculating a corrected pre-estimated braking distance of the front vehicle by using a front vehicle braking simulation formula; calculating a corrected pre-estimated braking distance of the vehicle by using a vehicle braking simulation formula; calculating a stationary expected distance between the vehicle and the front vehicle by using an expected vehicle distance adjustment formula; and calculating the self-adaptive cruise safety distance. By the adoption of the method, the proper self-adaptive cruise safety distance can be calculated, and the driving safety and the driving efficiency of the automobile are both considered.
本发明公开了一种智能网联汽车自适应巡航控制系统的安全距离计算方法,其步骤为:本车利用车对车通信功能,获取前车的制动性能参数、车辆状态信息和车辆类型;本车获取本车的制动性能参数和车辆状态信息,利用车对路通信功能,采集道路状况信息;利用制动器状态感知公式来判断本车制动器的制动效能衰减程度;计算前车与本车的最大制动减速度修正因子;利用前车制动模拟公式来计算前车的修正预估制动距离;利用本车制动模拟公式来计算本车的修正预估制动距离;利用期望车距调整公式来计算本车与前车的静止期望距离;计算自适应巡航安全距离。采用本方法能够计算出合适的自适应巡航安全距离,兼顾汽车的行驶安全性和行车效率。
Safe distance calculation method of intelligent networked automobile adaptive cruise control system
智能网联汽车自适应巡航控制系统的安全距离计算方法
2023-03-21
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 / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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