An improved active suspension yaw rate control

Lakehal-Ayat, Mohsen; Diop, Sette; Fenaux, E.

doi:10.1109/acc.2002.1023124

Cited by 14 publications

(8 citation statements)

References 5 publications

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“…The MRD is certainly able to provide variable damping coefficient rather than wanted active force. Despite that, the desired forces of the front and rear unsprung mass damper are just the opposite at the same time from (19). If one of two unsprung mass dampers serves the desired force with specific driven current, while the other one is working at zero driven current at the same time, we think that an approximate decoupling control is achieved by partly compensating the CDF.…”

Section: Exploratory Research On the Semiactive Decouplingmentioning

confidence: 99%

“…In the past decade, the active and semiactive control study of intelligent vehicle suspension is a hot topic in international vehicle engineering [1][2][3][4][5][6][7][8][9][10][11][12][13], whereas the coordinate control on full-car suspension has become a challenge bottleneck problem and heavily restricts the application and further performance improvement of intelligent suspension, due to strong coupling characteristic among the four quarter-car subsuspensions in a full car. There have been a lot of valuable papers reported in the research of decoupling [14][15][16][17][18][19][20]. Reference [14] proposed an ideal output tracking controller to achieve the almost disturbance decoupled control in a half car, by combining both feedback linearization and feedforward neural network control schemes, wherein the suspension inner coupling property was neglected and more undetermined parameters were required to synthesize controller of the MIMO nonlinear system.…”

Section: Introductionmentioning

confidence: 99%

“…Reference [17] proposed a human-like intelligent controller by regarding the full car as a quickly moving robot, in which eight poses were classified according to different coupling properties in the full-car vertical, pitch, and roll motions. References [18,19] proposed a new decoupled control model by decoupling the four quarter-car suspensions in a full car into three quartercar suspensions, which could greatly simplify the full-car controller synthesis complex and directly apply the proposed ripper control scheme for the quarter-car suspension, whereas the decoupled quarter-car suspension model yielded a large physical change. Reference [20] proposed a simplified measure and vehicle property index to permit a preliminary evaluation of different interconnected suspension configurations, through using qualitative scaling of the bounce-, roll-, pitch-, and warp-mode stiffness properties, which could offer considerable potential in realizing enhanced decoupling among the different suspension modes.…”

Section: Introductionmentioning

confidence: 99%

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Coupling Mechanism and Decoupled Suspension Control Model of a Half Car

Zhang

Min

et al. 2016

Mathematical Problems in Engineering

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A structure decoupling control strategy of half-car suspension is proposed to fully decouple the system into independent front and rear quarter-car suspensions in this paper. The coupling mechanism of half-car suspension is firstly revealed and formulated with coupled damping force (CDF) in a linear function. Moreover, a novel dual dampers-based controllable quarter-car suspension structure is proposed to realize the independent control of pitch and vertical motions of the half car, in which a newly added controllable damper is suggested to be installed between the lower control arm and connection rod in conventional quarter-car suspension structure. The suggested damper constantly regulates the half-car pitch motion posture in a smooth and steady operation condition meantime achieving the expected completely structure decoupled control of the half-car suspension, by compensating the evolved CDF.

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Section: Exploratory Research On the Semiactive Decouplingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Coupling Mechanism and Decoupled Suspension Control Model of a Half Car

Zhang

Min

et al. 2016

Mathematical Problems in Engineering

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“…Chu et al [19] investigate the relationship between the parabolic cornering stiffness and the resulting steady-state cornering response. Lakehal-Ayat et al [21] adopt a nonlinear single-track vehicle model, with a combination of parabolic cornering stiffness and simplified Pacejka magic formula to describe the lateral axle force. In [22] Wu et al use a vehicle model for suspension control design including consideration of the six degrees of freedom of the sprung mass; however, the linear relationship between slip angle and lateral tyre force, with constant cornering stiffness, cannot capture the effect of the anti-roll moment distribution on vehicle dynamics.…”

Section: Introductionmentioning

confidence: 99%

On the model-based design of front-to-total anti-roll moment distribution controllers for yaw rate tracking

Ricco

Percolla

Rizzo

et al. 2020

Vehicle System Dynamics

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In passenger cars active suspensions have been traditionally used to enhance comfort through body control, and handling through the reduction of the tyre load variations induced by road irregularities. However, active suspensions can also be designed to track a desired yaw rate profile through the control of the anti-roll moment distribution between the front and rear axles. The effect of the anti-roll moment distribution relates to the nonlinearity of tyre behaviour, which is difficult to capture in the linearised vehicle models normally used for control design. Hence, the tuning of anti-roll moment distribution controllers is usually based on heuristics. This paper includes an analysis of the effect of the lateral load transfer on the lateral axle force and cornering stiffness. A linearised axle force formulation is presented, and compared with a formulation from the literature, based on a quadratic relationship between cornering stiffness and load transfer. Multiple linearised vehicle models for control design are assessed in the frequency domain, and the respective controllers are tuned through optimisation routines. Simulation results from a nonlinear vehicle model are discussed to analyse the performance of the controllers, and show the importance of employing accurate models of the lateral load transfer effect during control design.

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“…[4][5][6] In recent years, the number of researches on global and integrated full-vehicle active safety control systems has been showing a rapid growth. To list some major works about global chassis control, see [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Combined control effects of brake and active suspension control on the global safety of a full-car nonlinear model

Tchamna

Youn

2014

Vehicle System Dynamics

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To cite this article: Rodrigue Tchamna, Edward Youn & Iljoong Youn (2014) Combined control effects of brake and active suspension control on the global safety of a full-car nonlinear model, Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility, 52:sup1, 69-91,This paper focuses on the active safety of a full-vehicle nonlinear model during cornering. At first, a previously developed electronic stability controller (ESC) based on vehicle simplified model is applied to the full-car nonlinear model in order to control the vehicle yaw rate and side-slip angle. The ESC system was shown beneficial not only in tracking the vehicle path as close as possible, but it also helped in reducing the vehicle roll angle and influences ride comfort and road-holding capability; to tackle that issue and also to have better attitude motion, making use of optimal control theory the active suspension control gain is developed from a vehicle linear model and used to compute the active suspension control force of the vehicle nonlinear model. The active suspension control algorithm used in this paper includes the integral action of the suspension deflection in order to make zero the suspension deflection steady state and keep the vehicle chassis flat. Keeping the chassis flat reduces the vehicle load transfer and that is helpful for road holding and yaw rate tracking. The effects of the two controllers when they work together are analysed using various computer simulations with different steering wheel manoeuvres.

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An improved active suspension yaw rate control

Cited by 14 publications

References 5 publications

Coupling Mechanism and Decoupled Suspension Control Model of a Half Car

Coupling Mechanism and Decoupled Suspension Control Model of a Half Car

On the model-based design of front-to-total anti-roll moment distribution controllers for yaw rate tracking

Combined control effects of brake and active suspension control on the global safety of a full-car nonlinear model

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