In order to enhance the ability of the intelligent control system to predict the driver's steering intention during the co-driving,an indirect shared lane-keeping robust control algorithm is thus proposed in this paper. Firstly,a driver steering model that mimics the driver’s steering behavior is introduced,with the parameters identified offline by the immune genetic algorithm (IGA). Then a linear time-varying human-vehicle-road model for derivers in the loop is established. Secondly,considering factors such as road curvature disturbance under complex working conditions,insufficient adaptation of the linear model,and time-varying characteristics of the model parameters,an output feedback suboptimal H∞ robust controller based on T-S fuzzy control theory is designed. Then,by fully taking into account both the driver’s steering behavior and the vehicular comprehensive lateral error,a human-vehicle control allocation strategy is designed to realize dynamic smooth allocation of driving control rights. Finally,the robust control algorithm is validated and studied based on the driver in the loop integrated platform. The results show that the robust control algorithm using the human-machine control allocation strategy has good disturbance suppression effect and can effectively enhance cooperation during the co-driving process,improving the friendliness of human-machine cooperation.
| 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 |