Research on Vehicle Chassis Integrated Control Technology Based on Coordination Strategy

2012 ◽  
Vol 249-250 ◽  
pp. 667-671 ◽  
Author(s):  
Kui Yang Wang ◽  
Chuan Yi Yuan ◽  
Jin Hua Tang ◽  
Guo Qing Li
Keyword(s):  
Control Strategy ◽  
Control Method ◽  
Integrated Control ◽  
Steering System ◽  
Suspension System ◽  
Coordination Control ◽  
Feedback Information ◽  
Coordination Strategy ◽  
Negative Effect ◽  
To Receive

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.

Integrated Design for Steering System and Suspension

2014 ◽  
Vol 494-495 ◽  
pp. 159-162
Author(s):  
En Guo Dong ◽  
Lei Zhang ◽  
Li Xue Liang
Keyword(s):  
Simulation Model ◽  
Ride Comfort ◽  
Control Method ◽  
Design Method ◽  
Integrated Control ◽  
Integrated Design ◽  
Steering System ◽  
Suspension System ◽  
Vertical Acceleration ◽  
Integrated Simulation

A design method of integrated control for suspension system and steering system is proposed based on vehicle ride comfort and handling stability. A car simulation model is built applying the software of MATLAB and ADAMS. The construction and characteristic of the integrated simulation model of the suspension system and steering system is illustrated in detail which uses fuzzy method and PID method. Using the simulation model, body vertical acceleration, roll angle and yaw angular velocity are measured in three status which include no control condition, the individually control for active suspension, and the integration control respectively. The simulation data show that the integrated control method synchronously ensures the ride comfort and handling stability.

Integrated Control of Active Suspension System and Active Front Steering System Using Hierarchical Control Method

2009 ◽  
Author(s):  
Weihua Zhang ◽  
Wuwei Chen ◽  
Hansong Xiao ◽  
Hui Zhu
Keyword(s):  
Control Method ◽  
Lower Layer ◽  
Integrated Control ◽  
Hierarchical Control ◽  
Active Suspension ◽  
Steering System ◽  
Vehicle Control ◽  
Suspension System ◽  
Active Front Steering ◽  
And Control

Integrated vehicle control has been an important research topic in the area of vehicle dynamics and control in recent years. The aim of integrated vehicle control is to improve the overall vehicle performance including handling, stability and comfort through creating synergies in the use of sensor information, hardware, and control strategies. This paper proposes a two-layer hierarchical control architecture for integrated control of active suspension system (ASS) and active front steering system (AFS). The upper layer controller is designed to coordinate the interactions between the ASS and the AFS. While in the lower layer, the two controllers including the ASS and the AFS, are developed independently to achieve their local control objectives. Simulation results show that the proposed hierarchical control system is able to improve both the ride comfort and the lateral stability compared to the non-integrated control approach.

Time-Optimal Coordination Control for the Gear-Shifting Process in Electric-Driven Mechanical Transmission (Dog Clutch) without Impacts

2020 ◽  
Vol 9 (2) ◽  
pp. 155-168
Author(s):  
Ziwang Lu ◽  
◽  
Guangyu Tian ◽  
Keyword(s):  
Control Strategy ◽  
Position Control ◽  
Control Method ◽  
Synchronization Control ◽  
Mechanical Transmission ◽  
Coordination Control ◽  
Optimal Position ◽  
Drive Motor ◽  
Time Optimal ◽  
Optimal Coordination

Torque interruption and shift jerk are the two main issues that occur during the gear-shifting process of electric-driven mechanical transmission. Herein, a time-optimal coordination control strategy between the the drive motor and the shift motor is proposed to eliminate the impacts between the sleeve and the gear ring. To determine the optimal control law, first, a gear-shifting dynamic model is constructed to capture the drive motor and shift motor dynamics. Next, the time-optimal dual synchronization control for the drive motor and the time-optimal position control for the shift motor are designed. Moreover, a switched control for the shift motor between a bang-off-bang control and a receding horizon control (RHC) law is derived to match the time-optimal dual synchronization control strategy of the drive motor. Finally, two case studies are conducted to validate the bang-off-bang control and RHC. In addition, the method to obtain the appropriate parameters of the drive motor and shift motor is analyzed according to the coordination control method.

Adaptive fault-tolerant control for active suspension systems based on the terminal sliding mode approach

2019 ◽  
Vol 234 (2) ◽  
pp. 501-511
Author(s):  
Amirhossein Kazemipour ◽  
Alireza B Novinzadeh
Keyword(s):  
Control Strategy ◽  
Control Method ◽  
Fault Tolerant ◽  
Sliding Mode ◽  
Fault Tolerant Control ◽  
Active Suspension ◽  
Suspension System ◽  
Terminal Sliding Mode ◽  
Car Suspension ◽  
Suspension Model

In this paper, a control system is designed for a vehicle active suspension system. In particular, a novel terminal sliding-mode-based fault-tolerant control strategy is presented for the control problem of a nonlinear quarter-car suspension model in the presence of model uncertainties, unknown external disturbances, and actuator failures. The adaptation algorithms are introduced to obviate the need for prior information of the bounds of faults in actuators and uncertainties in the model of the active suspension system. The finite-time convergence of the closed-loop system trajectories is proved by Lyapunov's stability theorem under the suggested control method. Finally, detailed simulations are presented to demonstrate the efficacy and implementation of the developed control strategy.

Design of Vehicle Semi-Active Suspension System Control Unit

2012 ◽  
Vol 220-223 ◽  
pp. 1995-1999
Author(s):  
Hong Kun Zhang ◽  
Wen Jun Li
Keyword(s):  
Embedded System ◽  
Control Strategy ◽  
Ride Comfort ◽  
Integrated Control ◽  
Control Unit ◽  
Active Suspension ◽  
Suspension System ◽  
System Control ◽  
Control Effect ◽  
Minimax Strategies

This paper researches on embedded system design based on MC9s12Dp256 microcontroller for vehicle semi-active suspension. The hardware design of suspension control unit (SCU) is introduced. The integrated control strategy which integrates Skyhook and MiniMax strategies is proposed. The hardware-in-the-loop simulation (HILS) test on a two-degree-of-freedom quarter car semi-active suspension system model is carried out. The functions of SUC are verified and the performance of passive suspension and semi-active suspension is compared. The simulation results indicate that the performance of SCU achieves design requirement. In comparison with passive system, the control effect of integrated control strategy can be improved in ride comfort and drive safety.

Integrated Vehicle Dynamic Control Through Coordinating Control of Steering and Suspension System

2005 ◽  
Author(s):  
Wuwei Chen ◽  
Hansong Xiao ◽  
Liqiang Liu ◽  
Jean W. Zu
Keyword(s):  
Control System ◽  
Ride Comfort ◽  
Integrated Control ◽  
Electrical Power ◽  
Dynamic Control ◽  
Steering System ◽  
Suspension System ◽  
Optimal Control Strategy ◽  
Vehicle Performance ◽  
Integrated Control System

This paper addresses the problem of integrated control of Electrical Power Steering System (EPS) and Active Suspension System (ASS). Through integrating EPS with ASS, a full car dynamic model is established. Based on the integrated model, a random sub-optimal control strategy based on output feedback is designed to fulfill the integrated control of both EPS and ASS. The characteristics of the integrated control system are analyzed using Matlab/Simulink and a series of comparisons are made with the system without control and the ASS-only/EPS-only system. The simulation results show that the integrated control scheme can not only enhance the steering quality, but also significantly isolate the road excitation. Moreover, the integrated control system has a great improvement on anti-roll and anti-pitch abilities. The proposed research provides a theoretical solution for simultaneously improving the multiple vehicle performance indices including maneuverability, handling stability, ride comfort, and safety.

Integrated Control of Vehicle Chassis Based on PID

2014 ◽  
Vol 644-650 ◽  
pp. 25-28
Author(s):  
En Guo Dong ◽  
Jie Xuan Lou ◽  
Lei Zhang
Keyword(s):  
Control System ◽  
Control Method ◽  
Integrated Control ◽  
Dynamic Performance ◽  
Steering System ◽  
System Control ◽  
Vehicle Performance ◽  
Vehicle Chassis ◽  
Integrated Control System ◽  
Better Than

In control system of vehicle chassis, two integrated control sub-systems of chassis have achieved some better results than a single sub-system control. However the two integrated sub-system control can not improve some dynamic performance on vehicle when other sub-system of chassis is disturbed. In order to improve vehicle dynamic performance of some sub-system, an integrated control method based on multi-system with suspension, steering system and brake system is designed. In the model, a 14-DOF vehicle model is used, and an integrated control method based on multi-system of chassis is designed in software of Matlab/Simulink with an integrated controller of PID. Simulation results show that the overall vehicle performance based on the three integrated control systems of chassis is better than those of two integrated control system.

scholarly journals Improving the Comfort of the Vehicle Based on Using the Active Suspension System Controlled by the Double-Integrated Controller

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Tuan Anh Nguyen
Keyword(s):  
Control Method ◽  
Integrated Control ◽  
Active Suspension ◽  
Suspension System ◽  
Control Methods ◽  
Passive Suspension ◽  
Positive Effects ◽  
Advantages And Disadvantages ◽  
Passive Suspension System ◽  
Integrated Controller

When the vehicle moves on the road, many external factors affect the vehicle. These effects can cause oscillation and instability for the vehicle. The oscillation of the vehicle directly affects the safety and comfort of passengers. The suspension system is used to control and extinguish these oscillations. However, the conventional passive suspension system is unable to fully meet the vehicle’s requirements for stability and comfort. To improve these problems, these are much modern suspension system models that have been used in the vehicle to replace the passive suspension system. The modern suspension systems are used as the air suspension system, semiactive suspension system, and active suspension system. These systems which are controlled automatically by the controller were established based on the control methods. There are a lot of control methods which are used to control the operation of the active suspension system. These methods have their advantages and disadvantages. Almost, conventional control methods such as PID, LQR, or SMC are commonly used. However, they do not provide optimal efficiency in improving a vehicle’s oscillation. Therefore, it is necessary to establish a novel solution for the active suspension system control to improve the vehicle’s oscillation. In this paper, the method of using the double-integrated controller is proposed to solve the above problem. The double-integrated controller consists of two hydraulic actuators which are controlled completely separately. This is a completely novel and original method that can provide positive effects. This research focuses on establishing, simulating, and evaluating the novel control method (the double-integrated control) for the active suspension system. The results of the research have shown that when the vehicle is equipped with the active suspension system which is controlled by the double-integrated controller, the maximum values of displacement and acceleration of the sprung mass are significantly reduced. They reach only 6.25% and 9.10% (case 1) and 6.00% and 6.12% (case 2) compared to the conventional passive suspension system. Besides, its average values which are calculated by RMS are only about 3.91% and 4.67% (case 1) and 4.48% and 4.77% (case 2) compared to the above case. Therefore, the comfort and stability of the vehicle have been improved. This paper provides new concepts and knowledge about the double-integrated control method which will become the trend to be used in the next time for the systems of the vehicle. In the future, experimental procedures also need to be conducted to be able to more accurately evaluate the results of this research.

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