The invention provides a vehicle speed PID control correction method and device and a vehicle. The method comprises the steps that target duration is obtained, the target duration is delay duration between a first moment and a second moment, the first moment is the moment when a first rotating speed changes, and the second moment is the moment when an ECU monitors that a first vehicle speed changes; under the condition that the target duration is larger than a first threshold value, a first mapping relation is inquired according to the target duration to obtain a target parameter set, the first mapping relation is the mapping relation between the delay duration and the parameter set, the target parameter set is the parameter set corresponding to the target duration, and the parameter set comprises proportional gain, integral time and differential time; and updating a current parameter group according to the target parameter group, wherein the current parameter group is a parameter group written in the ECU. According to the method, the problem that in the prior art, a PID control strategy which is uniformly configured in an ECU is low in control accuracy under the condition that instrument elements are replaced is solved.
本申请提供了一种车速PID控制的修正方法、修正装置和车辆该方法包括:获取目标时长,目标时长为第一时刻和第二时刻之间的延时时长,第一时刻为第一转速发生变化的时刻,第二时刻为ECU监测到第一车速变化的时刻;在目标时长大于第一阈值的情况下,根据目标时长查询第一映射关系得到目标参数组,第一映射关系为延时时长与参数组之间的映射关系,目标参数组为与目标时长对应的参数组,参数组包括比例增益、积分时间和微分时间;根据目标参数组更新当前参数组,当前参数组为ECU中写入的参数组。该方法解决了现有技术中ECU中统一配置的PID控制策略在仪表元件发生更换的情况下控制精准度较低的问题。
Vehicle speed PID (Proportion Integration Differentiation) control correction method, correction device and vehicle
车速PID控制的修正方法、修正装置和车辆
2024-04-19
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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