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Proceedings ArticleDOI

Research on vehicle rollover and control

27 Mar 2010-Vol. 2, pp 510-514
TL;DR: The effective control system and the project how to achieve it are provided and the final result can provide a scientific basis for the optimization of the vehicle's structure and improve the stability of vehicle rollover.
Abstract: Rollover is one of the main traffic accident forms for vehicle. According to the datas recently, rollover has become the second most serious accident. However, the study on rollover in China is at the beginning. The study on vehicle rollover is based on the theories of rollover. In order to optimize vehicle configuration,and enhance vehicle rollover stability,and ensure the road safety, rollover model is proposed and simulated in computer. Besides, the reasons that have effect on rollover are analyzed in detail. The final result can provide a scientific basis for the optimization of the vehicle's structure and improve the stability of vehicle rollover. Furthermore, some active control systems with rollover prevention are analysized and proposed. At last, the effective control system and the project how to achieve it are provided.
Citations
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01 Apr 1996
TL;DR: Clark College's Mechatronics Technology (MTX) classes emphasize current concepts and technology by providing practical, hands-on experiences with the latest, industry standard equipment, in addition to the technical knowhow needed to maintain and repair equipment, the certificate and degree programs will help prepare students to think critically, function as a successful team member and communicate clearly too internal and external customers.
Abstract: Mechatronics Technology is a growing career field that deals with the integration of mechanical and electronic components managed by control systems. Mechatronics technicians troubleshoot, maintain and repair mechanical equipment controlled by electrical, electronic and computer systems. These types of systems are increasingly used in a wide variety of manufacturing and industrial settings. Clark College's Mechatronics Technology (MTX) classes emphasize current concepts and technology by providing practical, hands-on experiences with the latest, industry standard equipment. In addition to the technical knowhow needed to maintain and repair equipment, the certificate and degree programs will help prepare students to think critically, function as a successful team member and communicate clearly too internal and external customers.

251 citations

Proceedings ArticleDOI
01 May 2018
TL;DR: For avoidance of accidents and develop helmet detection system, the proposed system is an intelligent/safety helmet that will sync with the module affixed on bike and will also ensure that biker has worn Helmet.
Abstract: Bike riding is a lot of fun, but accidents happen. People choose motorbikes over car as it is much cheaper to run, easier to park and flexible in traffic. In India, more than 37 million people are using two wheelers. Since usage is high, accident percentage of two wheelers are also high compared to four wheelers. Motorcycles have high rate of fatal accidents than four wheelers. The impacts of these accidents are more dangerous when the driver involves in a high-speed accident without wearing helmet. It is highly dangerous and can cause severe deaths. So, wearing a helmet can reduce this number of accidents and may save the life. This paper aims for avoidance of accidents and develop helmet detection system. The proposed system is an intelligent/safety helmet. A module affixed in the helmet, such that, the module will sync with the module affixed on bike and will also ensure that biker has worn Helmet. Additional feature of accident avoidance detection module will be installed on the bike.

43 citations

Journal ArticleDOI
28 Apr 2021
TL;DR: In this article, the authors focused on the problem of establishing a spatial dynamics model in combination with a nonlinear double-track dynamic model to describe the state of oscillation of the vehicle when steering.
Abstract: The phenomenon of the lateral instability of the vehicle when the steering is one of the extremely serious and dangerous problems. To improve safety and stability, vehicles often are equipped with stabilizer bars at the front and rear axles. However, the passive stabilizer bar cannot guarantee safe and stable performance in dangerous cases. Therefore, the active stabilizer bar is used to replace the passive stabilizer bar. The active stabilizer can automatically generate an anti-roll moment depending on the condition of the vehicle at each time. In dangerous cases, the anti-roll moment of the active stabilizer bar is much greater than the passive stabilizer bar. This research focused on the problem of establishing a spatial dynamics model in combination with a nonlinear double-track dynamic model to describe the state of oscillation of the vehicle when steering. The PID control method is used to control the hydraulic stabilizer bar. The results of the research indicated that when the vehicle was equipped with the hydraulic stabilizer bar, the values of the roll angle, the displacement of the un-sprung mass, the vertical force at the wheel, ... were significantly reduced.

17 citations


Cites background from "Research on vehicle rollover and co..."

  • ...The results of these studies indicate that at high speeds and large steering angles, the vehicle easily falls into lateral instability (sideslip or rollover) [8-14]....

    [...]

09 Jul 2015
TL;DR: The International Journal of Advanced Technology and Engineering Exploration (IJATEE) as discussed by the authors is a peer reviewed open access journal published monthly in English language that provides a forum for engineers and researchers that publish empirical results relevant to both researchers and practitioners.
Abstract: The International Journal of Advanced Technology and Engineering Exploration (IJATEE) is peer reviewed open access Journal published monthly in English language. It provides a forum for engineers and researchers that publish empirical results relevant to both researchers and practitioners. IJATEE encourages engineers and researchers to submit their manuscript in the area of Computer Science, Electronics and Electrical.

11 citations

Journal ArticleDOI
TL;DR: In this article, the authors established the spatial dynamic model of the vehicle to determine the vertical force FZ based on the simulation method, and the equation describing the relationship between vertical forces FZ, velocity v, and acceleration steering e corresponding to the value of steering angle d was also established by the calculation process.
Abstract: When the vehicles move at high velocity and quickly steer, the vehicles can be rollover. The first sign of this phenomenon is that two wheels on the same side are completely separated from the road surface. The typical value for this sign is the vertical force FZ at each wheel. If this value gradually decreases to zero, the wheel runs the risk of separating from the road surface that may lead to rollover. Therefore, the value of the vertical force Fz in different conditions needs to be determined to detect the imminent limit of the rollover phenomenon. This research established the spatial dynamic model of the vehicle to determine the vertical force FZ based on the simulation method. Besides, the equation describing the relationship between vertical force FZ, velocity v, and acceleration steering e corresponding to the value of steering angle d is also established by the calculation process. From this equation, the value of the vertical force FZ can be simply calculated with relatively high accuracy based on determining conditions. The results of this research are the basis for determining and establishing the vehicle's rollover limit.

6 citations

References
More filters
01 Apr 1996
TL;DR: Clark College's Mechatronics Technology (MTX) classes emphasize current concepts and technology by providing practical, hands-on experiences with the latest, industry standard equipment, in addition to the technical knowhow needed to maintain and repair equipment, the certificate and degree programs will help prepare students to think critically, function as a successful team member and communicate clearly too internal and external customers.
Abstract: Mechatronics Technology is a growing career field that deals with the integration of mechanical and electronic components managed by control systems. Mechatronics technicians troubleshoot, maintain and repair mechanical equipment controlled by electrical, electronic and computer systems. These types of systems are increasingly used in a wide variety of manufacturing and industrial settings. Clark College's Mechatronics Technology (MTX) classes emphasize current concepts and technology by providing practical, hands-on experiences with the latest, industry standard equipment. In addition to the technical knowhow needed to maintain and repair equipment, the certificate and degree programs will help prepare students to think critically, function as a successful team member and communicate clearly too internal and external customers.

251 citations

Journal ArticleDOI
TL;DR: In this article, a roll controller is designed for a torsionally flexible single unit vehicle, and the vehicle response to steady-state and transient cornering manoeuvres is simulated, concluding that roll stability can be improved by between 26% and 46% depending on the manoeuvre.
Abstract: Summary Strategies are investigated for controlling active anti-roll systems in single unit heavy road vehicles, so as to maximise roll stability. The achievable roll stability improvements that can be obtained by applying active anti-roll torques to truck suspensions are discussed. Active roll control strategies are developed, based on linear quadratic controllers. It is shown that an effective controller can be designed using the LQG approach, combined with the loop transfer recovery method to ensure adequate stability margins. A roll controller is designed for a torsionally flexible single unit vehicle, and the vehicle response to steady-state and transient cornering manoeuvres is simulated. It is concluded that roll stability can be improved by between 26% and 46% depending on the manoeuvre. Handling stability is also improved significantly.

139 citations

Proceedings ArticleDOI
02 Jun 1999
TL;DR: In this paper, the authors used a simple yaw-roll model to compute a time-to-rollover index for two SUVs, a 1988 Suzuki Samurai and a 1997 Jeep Cherokee.
Abstract: The methodology capable of computing a time-to-rollover (TTR) index in real-time is verified by using test data of two sports-utility vehicles (SUV)-a 1988 Suzuki Samurai and a 1997 Jeep Cherokee. First, simple yaw-roll models are constructed based on the test data. The TTR is computed from the simple model and then corrected by using an artificial neural network. The TTR generated by the neural network is then verified against the data for the two test vehicles.

76 citations

Journal ArticleDOI
TL;DR: In this article, an active roll controller for a vehicle and an experimental study using the electrically actuating roll control system are presented, where the controller is designed in the framework of lateral acceleration control and gain-scheduled H∞ control scheme considering the varying parameters induced by laden and running vehicle condition.

49 citations

Journal ArticleDOI
TL;DR: In this article, a three-degree-of-freedom model is employed for computer simulation to determine the relationship between the planar and roll motions of a large-size vehicle, so that the roll motion could be eventually predicted to prevent the vehicle from going dynamically unstable.
Abstract: In this paper, a three-degree-of-freedom model is employed for computer simulation to determine the relationship between the planar and roll motions of a large-size vehicle, so that the roll motion could be eventually predicted to prevent the vehicle from going dynamically unstable. Factors such as the varying center of gravity height and roll steer are also taken into consideration. An experiment is conducted using an actual truck with and without load to investigate its effect on the dynamics of the vehicle.

49 citations