Integrated control of variable torque distribution and electronic stability program based on slip angle phase

In this paper, an integrated system of SAS/ESP is proposed to improve vehicle handling performance and stability. The 15DOF vehicle model which describes the dynamics of the integrated system is established. A fuzzy logic control strategy is presented to control the integrated system. The simulation results show that the integrated control system can obviously improve vehicle maneuverability and ride quality much more than the individual control.

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Study on Integrated Control of Active Anti-Roll Steel Bar and Electronic Stability Program Based on Particle Swarm Optimization

Proceedings of the Second International Conference on Mechanics, Materials and Structural Engineering (ICMMSE 2017) ◽

10.2991/icmmse-17.2017.69 ◽

2017 ◽

Author(s):

Song Chen ◽

Shengyong Li ◽

Xu Sun

Keyword(s):

Particle Swarm Optimization ◽

Integrated Control ◽

Particle Swarm ◽

Electronic Stability Program ◽

Swarm Optimization ◽

Roll Steel ◽

Steel Bar

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Study on the Possibility to Estimate the Vehicle Side Slip Using Two Independent GPS Receivers

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.822.321 ◽

2016 ◽

Vol 822 ◽

pp. 321-330

Author(s):

Dinu Covaciu ◽

Ion Preda ◽

Dragoş Sorin Dima ◽

Anghel Chiru

Keyword(s):

Inertial Sensors ◽

Low Cost ◽

Vehicle Body ◽

Slip Angle ◽

Electronic Stability Program ◽

Sideslip Angle ◽

Gps Receivers ◽

Single Antenna ◽

Active Safety Systems ◽

The Difference

Slip angle is the difference between the direction a vehicle is travelling and the longitudinal plane of the vehicle body. Knowing vehicle sideslip angle accurately is critical for active safety systems such as Electronic Stability Program (ESP). Vehicle sideslip angle can be measured using optical speed sensors, inertial sensors and/or dual-antenna GPS receivers. These systems are expensive and their use is limited for many users. The goal of this paper is to analyze the possibility to estimate the vehicle sideslip angle, in real-time, by using two low-cost single-antenna GPS receivers.

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Simulation Study on ESP Fuzzy Control Based on Road Automatic Identification

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1044-1045.863 ◽

2014 ◽

Vol 1044-1045 ◽

pp. 863-867

Author(s):

Yan Rong Fu ◽

Li Xian Ren ◽

Guo Ye Wang ◽

Hai Jing Hou

Keyword(s):

Control System ◽

Fuzzy Control ◽

Control Strategy ◽

High Speed ◽

Degrees Of Freedom ◽

Integrated Control ◽

Automatic Identification ◽

Electronic Stability Program ◽

Slip Ratio ◽

Fuzzy Control Strategy

ESP (Electronic Stability Program) is a kind of active safety device which can comprehensively improve the brake, drive and high speed performance of the automobile. Mastering the key technologies of ESP control system plays an important role in improving the performance of ESP. Vehicle dynamic model and engine model with 9 degrees of freedom of one passenger car were established based on vehicle and tire force analysis. The ESP fuzzy control model based on slip ratio control was established. The optimal slip ratio under different pavements was confirmed by using road recognition method. ESP fuzzy control was realized under MATLAB/Simulink environment. And through the split road simulation prove the validity of the road recognition algorithm, and the effectiveness of the fuzzy control strategy. The simulation and the debugging results indicate that the ESP fuzzy control strategy based on road automatic identification works well, and obviously improves automobile stability under critical situations. And all of these make a good foundation for the further research and development for the ESP integrated control system.

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A Torque Vectoring Control System for Maneuverability Improvement of 4WD EV

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.347-350.899 ◽

2013 ◽

Vol 347-350 ◽

pp. 899-903

Author(s):

Yi He Gan ◽

Lu Xiong ◽

Yuan Feng ◽

Felix Martinez

Keyword(s):

Control System ◽

Closed Loop ◽

Lower Layer ◽

Lateral Acceleration ◽

Slip Angle ◽

Torque Distribution ◽

Handling Performance ◽

Yaw Rate ◽

Model Following ◽

Torque Vectoring

This paper studies the improvement of the handling performance of 4WD EV driven by in-wheel motors under regular driving conditions. Fundamentally the structure of torque vectoring control (TVC) system for handling control consists of two control layers. The upper layer is a model following controller which makes the vehicle follow the desired yaw rate limited by the side slip angle and lateral acceleration. The torque distribution constitutes the lower layer. Several simulations based on veDYNA/Simulink are conducted to verify the effectiveness of the control system. It is clarified that the control system exhibits satisfactory performance in both open and closed loop maneuvers and the agility of the electric vehicle is improved.

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Simulation Study of Vehicle Brake Stability Control on Turning Lane Based on ABS

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.591-593.1916 ◽

2012 ◽

Vol 591-593 ◽

pp. 1916-1919

Author(s):

Tao Yang ◽

Dan Dan Song

Keyword(s):

Integrated Control ◽

Slip Rate ◽

Stability Control ◽

Slip Angle ◽

Lateral Instability ◽

Dynamic Regulation ◽

Sinusoidal Input ◽

Yaw Stability ◽

Yaw Moment Control ◽

Yaw Moment

Vehicle under braking in turn condition can easily cause lateral instability because of the centrifugal force. In this paper, the defects of ABS control methods of the vehicle under braking in turn condition were analyzed, a braking force control strategy by the integrated control of ABS and yaw moment control for vehicle cornering is presented. Based on ABS, a yaw moment controller using fuzzy control theory is designed, by controlling yaw moment of vehicle and regulating slip rate of wheels, the dynamic regulation of yaw moment in vehicle braking is realized, therefore, vehicle braking stability on turning lane is improved. A simulation is performed with it during two different conditions: step input and sinusoidal input, the results showed that the transient and steady response based on presented method is better than that of ABS only, and the presented method can effectively control the yaw rate and side slip angle synchronously, achieve good transient and steady response, lighten the burden of the driver and improve vehicle yaw stability.

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Contribution of chassis key subsystems to rollover stability control

Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering ◽

10.1177/0954407011421850 ◽

2011 ◽

Vol 226 (4) ◽

pp. 479-493 ◽

Cited By ~ 13

Author(s):

S-B Lu ◽

Y-N Li ◽

S-B Choi

Keyword(s):

Control Strategy ◽

Integrated Control ◽

Stability Control ◽

Slip Angle ◽

Tyre Model ◽

Rollover Prevention ◽

Control Scheme ◽

Control Authority ◽

Rollover Stability ◽

Working Region

The current paper presents an integrated control strategy to improve rollover stability of a vehicle by considering chassis key subsystems. In order to achieve this goal, a quantitative study on control authority and the effective working region of active front steering (AFS), active braking (AB), and active suspension (AS) control for rollover prevention is carried out based on a full vehicle model which includes the non-linear tyre model and the effect of dynamic coupling. After investigating the control authority and effective working area of AFS, AB, and AS subsystems, an integrated control strategy for rollover stability is formulated. In this formulating process, the control strategy for each subsystem is also designed by considering its contribution to rollover stability. A comparison between the proposed integrated control strategy and the single control action of each subsystem is made through computer simulation. It is demonstrated that both anti-rollover ability and lateral stability are greatly improved by implementing the proposed integrated control scheme. Specifically, the peak of roll angle and the root mean square (RMS) of side slip angle with integrated control are reduced by 38.9 per cent and 47.1 per cent, respectively, relative to those of the passive system.

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