The invention relates to the technical field of advanced auxiliary driving systems, in particular to a vehicle information preview method based on self-adaptive cruise control (ACC) actuator delay, which comprises the following steps: S1, adjusting the delay time of an ACC actuator of a vehicle; s2, calculating a sample collection frequency n, and collecting an acceleration sample of the vehicle and an acceleration sample of the target vehicle; s3, calculating the average acceleration of the vehicle, the standard deviation of the acceleration of the vehicle, the average acceleration of the target vehicle and the standard deviation of the acceleration of the target vehicle within the adjusted delay time; s4, the speed of the vehicle is previewed after time delay, and the speed of the target vehicle is previewed after time delay; and S5, pre-aiming the relative displacement of the vehicle and the target vehicle after time delay. According to the method, the delay time of the actuator of the vehicle is dynamically adjusted through the driving mileage of the vehicle, so that errors caused by the fact that the delay time of the actuator changes due to the driving mileage are reduced, and the accuracy of the vehicle information preview result can be improved.
本发明涉及高级辅助驾驶系统技术领域,尤其涉及一种基于自适应巡航执行器延迟的车辆信息预瞄方法,包括以下步骤:S1、自车ACC执行器的延迟时间的调整;S2、计算样本采集次数n,并采集自车加速度样本、目标车的加速度样本;S3、计算调整后的延迟时间内自车平均加速度、自车加速度标准差、目标车平均加速度、目标车加速度标准差;S4、延迟时间后自车车速的预瞄,延迟时间后目标车车速的预瞄;S5、延迟时间后自车与目标车的相对位移的预瞄。本发明通过自车行驶里程对自车执行器延迟时间进行动态调整,以减小执行器因行驶里程而导致延迟时间发生变化造成的误差,能够提高车辆信息预瞄结果的准确性。
Vehicle information preview method based on adaptive cruise actuator delay
基于自适应巡航执行器延迟的车辆信息预瞄方法
2024-09-17
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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