一种汇入区电动汽车长短时域结合的节能运动规划方法
By constructing a joint optimization problem of the power system of ramp vehicles and model predictive control, the problems of energy efficiency and dynamic constraints during the merging process of ramp vehicles are solved, realizing energy-saving motion planning of ramp vehicles and improving traffic efficiency and energy utilization.
CN116767213BActive Publication Date: 2026-07-17NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
- Filing Date
- 2023-05-29
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing methods for merging vehicles on ramps fail to effectively consider the energy efficiency and dynamic constraints of the power system, resulting in energy waste and low traffic efficiency.
Method used
A joint optimization problem integrating motion planning and power system is constructed. The optimal velocity profile is solved in the long time domain using model predictive control method, and the power output is optimized in the short time domain. Combined with the longitudinal dynamics model, energy-saving motion planning of ramp vehicles is realized.
Benefits of technology
It improves the energy efficiency of vehicles merging onto ramps, reduces energy consumption, and increases traffic flow.
✦ Generated by Eureka AI based on patent content.
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Abstract
本发明公开了一种汇入区电动汽车长短时域结合的节能运动规划方法，包括：路侧设备向匝道车辆传输目标间隙和汇入调整区域内其他车辆的位置、速度信息；匝道车辆根据目标间隙确定其主道前车；预测主道前车到达汇入点的时刻；建立匝道车辆的纵向动力学模型和动力系统模型，构建匝道车辆汇入运动规划和动力系统的联合优化问题，求解联合优化问题得到长时域内匝道车辆的最优速度剖面和最优位置剖面；求解动力系统短时域内最优动力输出，以跟踪最优速度剖面和最优位置剖面。本发明考虑汇入车辆的动力系统的动力约束和能效，将动力系统的驱动力矩约束和驱动电机效率引入汇入运动规划中，提高了匝道车辆在汇入过程的节能经济性。
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