The research purpose of path algorithm is to ensure that the autonomous vehicle can accurately track the reference path given by the decision-making and planning layer and ensure the vehicle’s driving stability and riding safety in the process of path tracking. In recent years, the researches on path tracking control algorithms have been fruitful. Many scholars have optimized and innovated the existing algorithms, and a variety of path tracking control algorithms have been created, including system model, control theory, with or without feed forward information and driving conditions. By summarizing the research status of the accuracy and ride stability of the path tracking control algorithms, the coupling relationship between the 2 algorithms is analyzed, and various iterations of the old and new algorithms in the course of the path tracking control research are sorted out. The control strategy taking into account the accuracy and ride stability is proposed, and the future development trend of the path tracking control of autonomous vehicles is summarized.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |