The invention relates to the technical field of intelligent network connection vehicles, and provides an intelligent network connection passenger car maximum speed self-adaption control method and system and a vehicle, and the method comprises the steps that the real-time vehicle speed is calculated according to the obtained motor rotating speed, and according to the driving mode of the vehicle, a look-up table and an increment PI adjusting algorithm are fused and adopted to determine the motor request torque; and performing real-time adjustment on a proportional-integral parameter value of an increment PI adjustment algorithm by comparing a difference value between the obtained real-time vehicle speed and a set maximum vehicle speed limit value and combining a speed change rate, and performing updating to obtain the request torque of the motor. And PI parameters are adjusted in real time by combining the error between the current actual maximum vehicle speed and the maximum vehicle speed set value and the speed change rate, and it is guaranteed that the vehicle can meet the maximum vehicle speed requirement and the acceleration performance under different working conditions and different loads. According to the method, repeated parameter calibration does not need to be carried out on the PI parameters, so that manpower is saved, and meanwhile, the running safety and comfort of the vehicle are improved through self-adaptive parameter adjustment.
本公开涉及智能网联车辆技术领域,提出了一种智能网联客车最高车速自适应控制方法、系统及车辆,包括:根据获取的电机转速计算实时车速,根据车辆的行驶模式,融合采用查表与增量PI调节算法确定电机请求扭矩;通过比较获取的实时车速与设置的最高车速限值差值以及结合速度变化率,对增量PI调节算法的比例积分参数值进行实时调整,更新得到电机的请求扭矩。结合当前实际最高车速与最高车速设定值误差以及速度变化率,实时调整PI参数,保证车辆在不同工况和不同载荷下均能满足最高车速要求和加速性能。该方法不需要对PI参数进行反复参数标定,从而节省了人力,同时通过自适应调整参数,提高车辆运行安全性和舒适性。
Intelligent networked passenger car maximum speed self-adaptive control method and system and vehicle
一种智能网联客车最高车速自适应控制方法、系统及车辆
2024-11-19
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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