Research on Vehicle Chassis Integrated Control Technology Based on Coordination Strategy

Abstract

In order to eliminate mutual negative effect of brake, steering and suspension system, a kind of layered coordinated control method based on multiple controllers is put forward. Framework of coordination control system of chassis is established, coordination strategy of upper controller and control strategy of lower controllers are designed. The upper controller is used mainly to receive operation information of driver, running state of vehicle and feedback information of lower controllers, and send coordination control strategy to lower controllers. The lower controllers include controller of electro mechanical braking system (EMB), controller of electric power steering system (EPS) and controller of active suspension system (ASS), which are used to receive decision instruction of upper controller, control actuators to accomplish control tasks and send execution situation to upper controller in time.

MPC-Based Slip Ratio Control for Electric Vehicle Considering Road Roughness

“…There are several control strategies in the longitudinalvertical control The goals are achieved by employing nonlinear backstepping schemes, whose design procedure consists of two parts to construct the anti-lock braking and active suspension controllers individually in [14]. The coordinated control of ABS and ASS is proposed in [15] [16] using fuzzy logic control theories to improve braking performance.…”