In this paper an active brake control to decrease the rollover risk of heavy vehicles is proposed. The brake system is activated when the vehicle comes close to rolling over. To enhance the performance of the active brake, this mechanism is extended with a prediction procedure, in which the critical values are predicted in advance using a short time interval. In order to predict an imminent rol...

In this paper we present a methodology based on multiple models and switching for realtime estimation of center of gravity (CG) position in automotive vehicles. The method utilizes well-known simple linear vehicle models for lateral and roll dynamics and assumes the availability of standard stock automotive sensors. We illustrate the technique with numerical simulations as well as with measured...

This paper presents an integrated controller for autonomous articulated electric vehicle (AAEV) path tracking and rollover prevention. The AAEV is vulnerable to due the characteristics of frame steering (AFS) mechanism, which shows improved maneuverability agility but not front wheel steering. In addition, ratio between height track width high, so prone rolling over. Therefore, proposed was des...

The semi-trailer chassis was usually treated as rigid body in many existing literature, which would lead to larger deviation from actual situation. A rigid semi-trailer chassis model was built and flexiblized based on the modal test results in this paper. The tractor semi-trailer with flexible chassis was utilized to simulate the rollover scenarios on high speed obstacle avoidance under emergen...

A significant fraction of fatalities involving passengers in automobile accidents is due to severe Head Injury. Head impact safety which in turn is the occupant safety is a significant consideration particularly in the design of Passenger Vehicles. During the rollover of SUV the head comes in contact with the parts such as the B-Pillar so in order to evaluate the occupant safety during rollover...

An anti-rollover control algorithm based on the Time-To-Rollover (TTR) index is proposed in this paper. A simple model with steering and differential braking inputs was developed to calculate the TTR in real-time. The TruckSim dynamic simulation software is used to verify the final control performance, as well as simulating the dynamics in the driving simulator. Both the simple and complex (Tru...

The roll angle of the vehicle φ is a characteristic parameter for vehicle's instability. This value appears when steers. If vehicle’s body tilted, vertical force at wheels Fzij will also change. When reaches zero, wheel be lifted off road, rollover phenomenon can occur. At this time, reach maximum φmax. Previous researches have often used only dynamics model to determine limits phenomenon. Howe...

Truck accidents involving rollover have extremely high fatality rates. About half of all truck drivers killed in accidents last year were involved in a rollover. Freightliner’s Rollover Stability Advisor alerts drivers to potential rollover situations, training them to avoid excessive rollover risk. In this paper, we describe work that extends the Rollover Stability Advisor to predict rollover ...

The safety of road vehicles depends on the yaw-roll dynamics. A loss of roll stability results in a rollover accident. Mechanisms to warn against rollover threat and a rollover avoidance control methodology are crucial in designing a successful active safety warning/control system for heavy-duty commercial vehicles. A dynamic rollover metric, Time-To-Rollover (TTR), has become popular in rollov...