Extension Coordinated Multi-Objective Adaptive Cruise Control Integrated with Direct Yaw Moment Control

Abstract

An adaptive cruise control (ACC) system can reduce driver workload and improve safety by taking over the longitudinal control of vehicles. Nowadays, with the development of range sensors and V2X technology, the ACC system has been applied to curved conditions. Therefore, in the curving car-following process, it is necessary to simultaneously consider the car-following performance, longitudinal ride comfort, fuel economy and lateral stability of ACC vehicle. The direct yaw moment control (DYC) system can effectively improve the vehicle lateral stability by applying different longitudinal forces to different wheels. However, the various control objectives above will conflict with each other in some cases. To improve the overall performance of ACC vehicle and realize the coordination between these control objectives, the extension control is introduced to design the real-time weight matrix under a multi-objective model predictive control (MPC) framework. The driver-in-the-loop (DIL) tests on a driving simulator are conducted and the results show that the proposed method can effectively improve the overall performance of vehicle control system and realize the coordination of various control objectives.

The Analysis of Pneumatic Wheel Rim Deformation While Hitting an Obstacle

“…The issues of road transport safety are widely discussed in the literature, for example in [11][12][13][14][15][16]. Many authors pay attention to vehicle safety systems: braking systems, including Anti-lock Braking System (ABS) and Electronic Stability Program (ESP) [17][18][19][20][21][22], vehicle suspension systems [23][24][25][26], tires [27][28][29][30], tire pressure monitoring systems (TPMS) [31,32], and other systems [33][34][35][36]. In [37], tests mapping the damage to the wheel of a tire on a vehicle on a special test stand are described.…”

Yaw Stability Research of the Distributed Drive Electric Bus by Adaptive Fuzzy Sliding Mode Control

“…Traditional safety control technology is no longer able to meet the realistic requirements of a distributed drive electric bus. Hence, as an active control method, the function of direct yaw moment control (DYC) of the yaw stability of a bus under extreme conditions has attracted increasingly more attention [2,3].…”