Mechatronic semi-active and active vehicle suspensions

“…The suspension filters the vibrations produced by the vehicle-terrain interaction, protecting the crew, the vehicle components and the transported materials [7,9,11,17].…”

Section: Introductionmentioning

confidence: 99%

Effects of The Number of Axles on Vehicle Behavior Traversing Bump Terrain

Carvalho¹,

Caldeira²,

Neto³

et al. 2018

Proceeding Series of the Brazilian Society of Computational and Applied Mathematics

View full text Add to dashboard Cite

Abstract. Vehicle configurations with the same hull have been developed to survey different military requirements. This procedure reduces RD and production costs, as well as simplifies the logistical supply chain. In this sense, the choice of the number of axles is relevant in the project of military vehicles, modifying the vehicle capabilities to transport soldiers, materials and weapons. This work analyzes the effects of the number of axles on vehicle behavior travelling on a terrain with a step. A half car model is employed to evaluate the 4x4, 6x6 and 8x8 vehicle configurations. All of the wheels have independent and passive suspensions with springs and dampers. The system of ordinary differential equations, which represents the half car model, is solved by a fourth order Runge-Kutta algorithm implemented in SciLab software. The results describe the pitch and bounce displacements of the hull. The influence of the vehicle velocity passing on the bump is also analyzed.

show abstract

“…Unlike PVSS and SAVSS, which have the ability only to dissipate force, AVSS are capable of introducing forces into the VSS. This positions AVSS better to address the trade-off, but at a higher cost in terms of energy and complexity (Williams, 1997;Fischer and Isermann, 2004). In addition, the best compromise must be achieved in the presence of the system's nonlinearities and uncertainties .…”

Section: Introductionmentioning

confidence: 99%

Proportional-integral-derivative control of nonlinear half-car electro-hydraulic suspension systems

Ekoru

Pedro

2013

J. Zhejiang Univ. Sci. A

View full text Add to dashboard Cite

This paper presents the development of a proportional-integral-derivative (PID)-based control method for application to active vehicle suspension systems (AVSS). This method uses an inner PID hydraulic actuator force control loop, in combination with an outer PID suspension travel control loop, to control a nonlinear half-car AVSS. Robustness to model uncertainty in the form of variation in suspension damping is tested, comparing performance of the AVSS with a passive vehicle suspension system (PVSS), with similar model parameters. Spectral analysis of suspension system model output data, obtained by performing a road input disturbance frequency sweep, provides frequency response plots for both nonlinear vehicle suspension systems and time domain vehicle responses to a sinusoidal road input disturbance on a smooth road. The results show the greater robustness of the AVSS over the PVSS to parametric uncertainty in the frequency and time domains.

show abstract

Mechatronic semi-active and active vehicle suspensions

Cited by 260 publications

References 15 publications

Active Suspension in Integrated Vehicle Control

Active Suspension in Integrated Vehicle Control

Effects of The Number of Axles on Vehicle Behavior Traversing Bump Terrain

Proportional-integral-derivative control of nonlinear half-car electro-hydraulic suspension systems

Contact Info

Product

Resources

About