According to the self-adaptive cruise control method and system, under the conditions that the self-adaptive cruise function of a vehicle is started, a front vehicle exists in front of the vehicle and the vehicle runs at a low speed, the expected vehicle speed is compared with the current vehicle speed of the vehicle, and if the expected vehicle speed is larger than the current vehicle speed of the vehicle, the vehicle is started; if yes, the clutch opening degree of the vehicle is controlled to be sequentially increased according to the preset gear gradient; if the expected vehicle speed is within the preset current vehicle speed range, the current vehicle speed of the vehicle is kept; and if the expected vehicle speed is smaller than the current vehicle speed of the vehicle, the opening degree of the clutch of the vehicle is controlled to be sequentially reduced according to the preset gear gradient, the control strategy for the opening degree of the clutch is introduced, and the opening degree of the clutch of the vehicle is controlled to be sequentially increased or reduced according to the preset gear gradient. The following performance and smoothness of low-speed car following are greatly optimized, more refined car speed control is achieved, and the driving experience is improved.
本发明公开了一种自适应巡航控制方法及系统,本发明在车辆的自适应巡航功能开启、车辆的前方存在前车、且车辆低速行驶的情况下,对期望车速与车辆的当前车速进行比较,若期望车速大于车辆的当前车速,则控制车辆的离合器开度按照预设的档位梯度依次增大;若期望车速处于预设的当前车速区间内,则保持车辆的当前车速;若期望车速小于车辆的当前车速,则控制车辆的离合器开度按照所述预设的档位梯度依次减小,本发明引入对离合器开度的控制策略,通过控制车辆的离合器开度按照预设的档位梯度依次增大或者减小,极大地优化了低速跟车的跟随性及平顺性,实现了更精细化的车速控制,提升了驾乘体验。
Self-adaptive cruise control method and system
自适应巡航控制方法及系统
2022-12-16
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 |
Self-adaptive cruise system and self-adaptive cruise method
European Patent Office | 2022
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