Abstract The passive safety of the vehicle is ensured by designing optimized restraint systems to protect occupants during accident. safety-belts have role restraining car on seat an impact or in event a rollover. Their retention prevents minimizes between and interior components passenger compartment. Two simplified models structures are proposed determine strength anchorages. test anchorage f...

We present a rollover prevention control law for wheeled mobile manipulators based on the invariance control framework, and that makes use of recursively calculated analytic gradients of the mobile manipulator’s zero moment point. Our controller relaxes many of the assumptions made in existing approaches, and enhances robustness through the use of exact gradient information. Numerical experimen...

Most active devices focused on vehicle stability concern on-road cars and cannot be applied satisfactorily in an off-road context, since the variability and the non-linearities of tire/ground contact are often neglected. In previous work, a rollover indicator devoted to light all-terrain vehicles accounting for these phenomena has been proposed. It is based on the prediction of the lateral load...

The AIS 031 is equivalent to ECE -driver. The ultimate aim of this study was to investigate the impact on passenger residual performed. of 10 mm is maintained in the critical regions and 30mm in the noncritical regions. The -031. ure was carried out using HyperMesh and HyperC it solver. . A study by Pearce et al. [1] found that bus rollovers caused ombined rollover involves -on collision that l...

1. INTRODUCTION At midnight on December 31 st last year one of the most widely anticipated events in computing took placeΧthe Millennium date rollover. Fortunately, the occasion was marked by virtually no disruption to computing services and the global meltdown that some authors had predicted did not arise. The purpose of this panel is to explore the experiences of and the lessons learned from ...

Abstract: This paper presents a new methodology for estimating wheel-ground contact normal forces, commonly known as vertical forces. The proposed method uses measurements from currently available standard sensors (accelerometers and relative suspension sensors). The aim of this study is to improve vehicle safety, especially to prevent rollover problems. One particular feature of the method is ...

Active safety technologies for reduction of rollover risk are dealing until now primarily with active suspension systems. In this paper a new vehicle dynamics approach is investigated, in which robust steering control is applied to avoid rollovers of vehicles with a high center of gravity. In addition to the driver's steering angle a small auxiliary steering angle is set by an actuator. The con...

This paper proposes a potential field-based method for high speed navigation of unmanned ground vehicles (UGVs) on uneven terrain. A potential field is generated in the two-dimensional “trajectory space” of the UGV path curvature and longitudinal velocity. Dynamic constraints, terrain conditions, and navigation conditions can be expressed in this space. A maneuver is chosen within a set of perf...

This paper proposes an emergency locking unit (ELU) for a seat belt retractor which is mounted on the back frame of a vehicle seat. The proposed unit uses a recliner sensor based on a MEMS acceleration sensor and solenoid mechanism. The seat has an upper frame supported to tilt on a lower frame. The retractor in belt in seat (BIS) system is supported by the upper frame. The proposed recliner se...