Abstract In recent years, eco‐driving for hybrid electric vehicles (HEVs) has been studied with the emerging connected and automated vehicle (CAV) technologies to improve mobility, fuel economy safety of HEVs. This paper develops a hierarchical control strategy HEV platoons consisting CAVs human‐driven (HDVs) at signalized intersections. For each platoon, speed trajectories are optimized in upper layer controller using model predictive (MPC) minimize total consumption whole platoon. HEV,...

As coal-fired heating in winter rural areas of northern China exacerbates air pollution, promoting cleaner transition is significance for environmental sustainability. However, this difficult as intentions and actions households are deficient. This case study aims to estimate households’ willingness pay (WTP) facilities energy explore its key factors. The survey-based analysis found that the total annual WTP (sum per year) varied from RMB 250 6800 (RMB 100 ≈ USD 15 2018), with a quite low...

In the last decade, research studies on parking planning mainly focused path rather than trajectory planning. The results of are more instructive for a practical process. Therefore, this paper proposes method in which optimal autonomous valet (AVP) is obtained by solving an control problem. Additionally, vehicle kinematics model established with consideration dynamic obstacle avoidance and terminal constraints. Then problem modeled as problem, while time driving distance set cost function....

In this paper, we investigate the intersection traffic management for connected automated vehicles (CAVs). particular, a decentralized autonomous scheme that takes into account both efficiency and scheduling flexibility is proposed, which adopts novel intersection–vehicle model to check conflicts among CAVs in entire area. addition, priority-based collision-avoidance rule set improve performance of shorten delays emergency CAVs. Moreover, multi-objective function designed obtain optimal...

A detection system was designed for rapid and accurate determination of sulfide sulfur in an anaerobic by gas-phase molecular absorption spectrometry (GPMAS).

This study presents an optimal control strategy for connected and automated vehicles (CAVs) at unsignalized intersections. A framework with task-decomposition is designed the near-intersection area. Firstly, continuous traffic flow discretized a proposed intersection area-division scheme. Then, in different lanes are regrouped based on longitudinal positions to establish multivehicle cooperative problems of limited vehicle number. The expected trajectory merging zone obtained through offline...

The traditional signalized intersection is no longer able to meet the increasing demands of transportation. A method combining autonomous management (AIM) and connected automated vehicles (CAVs) suggested for solving existing traffic problems. This study proposes a control unsignalized intersections based on cooperative grouping, which discretizes continuous flow into series small-scale vehicle groups. In addition, Petri Net model with progressive structure proposed, time domain sequence...

Natural siderite was selected as a raw material for preparing nano zero-valent iron (nZVI). The efficiency of the as-synthesized nZVI PO3-₄-P removal investigated, and effects annealing temperature, pH, initial concentration, adsorption temperature oxygen were investigated. results indicated that after at 550 °C, exhibited an average crystal size 56.3 nm surface area 14.1 m²/g. A decrease in pH increase availability enhanced efficiency. process, which spontaneous exothermic according to...

With the rapid development of national economy, increasing income, total vehicle population, growing problem urban parking difficult, advanced control technology in management system use is more practical significant. Parking by systematic investigation and research at home or abroad, as well similar analysis design technology, this paper wireless sensor network based on related to technical analysis, then designing hardware circuit corresponding software, finally, new has been designed realized.

A significant amount of time and fuel energy can be wasted in the process parking with so many vehicles this world, while autonomous valet is capable liberating drivers for high efficiency. In recent years, various proposals emerged. However, problem still cannot promptly handled reliable trajectories to follow. Therefore, paper proposed a novel global trajectory planning method which generates given start configuration vacant space. To detailed, path obtained by an improved A* algorithm,...

Private automobiles are popularizing among average families. At the same time, problem of impropriate parking is also emerging which influences quality living environment in residential areas. Therefore, it a priority to address problems private and create harmonious between human

In recent years, eco-driving strategies based on connected vehicle (CV) technologies have been studied to assist human drivers reduce fuel consumption and pollutant emissions. this paper, a real-time strategy for CVs that considers driver error is proposed improve both traffic efficiency at signalized intersections where human-driven vehicles (HDVs) coexist. Firstly, estimation model established using real-world driving data. Then, the signal phase timing information, state estimated errors,...