Due to the numerical subsystems and functionalities among platoon, failures easily occur lead vehicle safety stability deteriorate. With surge of platoon connectivity, abnormal states arising in faulty vehicles will have an impact on adjacent healthy vehicles, potentially resulting severe traffic accidents. To address aforementioned problems improve functional platoons, a systemic anti-fault consensus strategy is proposed this article deal with sensor faults, LOE actuator bias faults...

The specific restrictions are breached in the case of vehicle platoon faults and result unacceptable system performance degradation. This paper proposed a novel prescribed time recovery fault tolerant control method to ensure nominal under multiple faults, including actuator with deferred backup switching leader-follower link consideration. A barrier function based sliding mode controller is devised assure consensus errors convergence within constraints normal conditions at first. Under...

Brake system failure may occur because of design defects, poor maintenance, or improper operation and is one the causes serious traffic accidents. For high-speed vehicles, brake can cause them to almost lose ability avoid collisions. Currently, there are no active safety functions for vehicles with near-total failure. In this article, an adaptive drift-control method proposed reduce longitudinal speed collisions after Collision risk analyzed by combining obstacles lateral environments. The...

This work reports new ROS-responsive and O₂-producing nanoparticles to achieve selective mitochondria-targeted PDT for cancer treatment against hypoxic tumors.

Brake-by-wire (BBW) is a fundamental function required by intelligent vehicles. And the One-Box electrohydraulic BBW (EHB) system becoming mainstream solution. To improve wheel pressure regulation (WPR) ability in solution, this study proposes new WPR scheme directly coordinating adjusting valves and motor-powered booster instead of traditional plunger pump. First, disturbance rejection adaptive control (DRAC) method proposed for master cylinder during special process, which can deal with...

The traditional regenerative braking control strategy usually uses the torque mode and does not perform closed-loop on charging current, when vehicle needs to be charged with a small system cannot work effectively. dual-mode proposed in this paper unifies of current torque. Especially battery is state high charge or temperature too low, can ensure safety, regeneration efficiency, ride comfort. In mode, proposal ADRC controller dynamically adjust motor achieve purpose accurately controlling...

Precise path tracking and agilely avoiding obstacles are essential for the stability safety of autonomous driving. In this paper, we introduce a uniform safe control strategy that combines obstacle avoidance with via barrier function. Unlike conventional hierarchical collision methods, our approach employs an integral heuristic function addresses planning reference trajectory problems simultaneously. Via this, complex following problem is simplified into tractable yaw angle problem. We then...

Situation-awareness (SA) has been important for natural disaster management and smart decision making. Traditionally, security officers recognize situations through emergency reporting with phone calls. However, due to the busy lines or power outages caused by disasters, traditional SA limited in terms of time mitigation response, which may cause high loss life properties areas. Social media-based studied recently. existing systems are designed events without nonconsecutive migrations over...

The high redundant brake-by-wire system reveals vehicular safety handling ability and rarely emerges in the automotive area at present time. This paper presents a novel system, DREHB (Double Redundant Electro-Hydraulic Brake), with extensible fail-safe operations for high-automation autonomous driving vehicles. is designed as decoupled-architecture containing three-layer cascaded modules, including hydraulic power provider, flow switcher, pressure modulator, each of modules can share dual...

Vehicle lateral stability is of great importance for maintaining vehicle safety. Active front-wheel steering (AFS) the typical actuator to realize control. However, if a fault occurs on AFS, direct yaw rate control (DYC) can also be used through differential braking, guaranteeing actuation redundancy. The paper proposes practical active tolerant method controlling AFS DYC process in case complete failure whereby expected take over after certain duration. proposed has distinctive feature that...

Abstract Vehicle platooning can significantly reduce traffic accidents and enhance transportation safety. Among many subsystems functionalities equipped in a vehicle platoon, cooperative braking is safety‐critical one. Besides, as actuator faults would deteriorate safety stability, they pose great challenge to the particularly during braking. To address aforementioned problems, this study designed an adaptive distributed finite‐time fault‐tolerant controller for platoons under condition....