期刊
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
卷 21, 期 6, 页码 2324-2338出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TITS.2019.2917885
关键词
Engines; Fuels; Gears; Trajectory; Real-time systems; Torque; Mechanical power transmission; Minimum fuel consumption; necessary condition; optimal control problem; pulse and glide; speed trajectory planning
资金
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, Information and Communication Technology (ICT) and Future Planning [2016R1C1B1006540]
- Industry Core Technology Development Program - Ministry of Trade, Industry and Energy (MOTIE), South Korea [10076309]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10076309] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2016R1C1B1006540] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
One of the most effective methods to reduce fuel consumption is modifying or shaping the driving loads of ground vehicles. For an automatic driving vehicle, the pulse-and-glide strategy is known to be optimal, and many analyses have been performed on this strategy in offline optimization. However, there is no pulse-and-glide algorithm that is implementable in real-time without loss of optimality. This paper presents the solution structure of an optimal control problem for the pulse-and-glide driving strategy. The solution structure is used in designing a real-time implementable algorithm that determines the optimal speed trajectory and the optimal gear shifting trajectory for pulse-and-glide operation. The optimal problem is formulated in a speed-acceleration domain (v-a domain) not in a time-velocity domain, which greatly reduces the complexity of the problem. Therefore, an optimal solution can be achieved by using the necessary conditions with a small number of grid search computations. The algorithm achieved 3%-5% fuel savings compared to the cruising case. In contrast, the previous real-time implementable pulse-and-glide method found in other literature achieved only 2%-3% savings with the same road conditions. By introducing a new domain for the problem formulation, the designed algorithm can be used in real-time without loss of optimality.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据