Reinforcement Learning-Based Approach for Minimizing Energy Loss of Driving Platoon Decisions.

Reinforcement learning (RL) methods for energy saving and greening have recently appeared in the field of autonomous driving. In inter-vehicle communication (IVC), a feasible and increasingly popular research direction of RL is to obtain the optimal action decision of agents in a special environment. This paper presents the application of reinforcement learning in the vehicle communication simulation framework (Veins). In this research, we explore the application of reinforcement learning algorithms in a green cooperative adaptive cruise control (CACC) platoon. Our aim is to train member vehicles to react appropriately in the event of a severe collision involving the leading vehicle. We seek to reduce collision damage and optimize energy consumption by encouraging behavior that conforms to the platoon's environmentally friendly aim. Our study provides insight into the potential benefits of using reinforcement learning algorithms to improve the safety and efficiency of CACC platoons while promoting sustainable transportation. The policy gradient algorithm used in this paper has good convergence in the calculation of the minimum energy consumption problem and the optimal solution of vehicle behavior. In terms of energy consumption metrics, the policy gradient algorithm is used first in the IVC field for training the proposed platoon problem. It is a feasible training decision-planning algorithm for solving the minimization of energy consumption caused by decision making in platoon avoidance behavior.

Construction of a new binding manner in carboxylic acid-functionalized phosphomolybdates.

Carboxylic acid-functionalized polyoxomolybdates have been widely reported. In this study, we tried to establish a new connection pattern between an organic carboxylic acid ligand and inorganic phosphomolybdates by employing N-containing pyridine dicarboxylic acids and two other benzene dicarboxylic acids. Herein, four kinds of organic-inorganic hybrids have been synthesized. Studies reveal that these compounds are dimers, trimer or hexamer, displaying the templating effect of different carboxylic acids. In compound 2, besides the normal C-O-Mo bonds, a new binding manner of C-N-Mo bonds was presented as a linker to connect the organic and inorganic portions, and the polyanion demonstrated the conformation of a hexamer. Moreover, the photochromic properties of these compounds were studied, and the kinetics of the coloration process was analyzed and compared. It seems that based on the aromaticity of their organic ligands, the t1/2 values of the four compounds are much less than those of the compounds functionalized by aliphatic acids.