Bibliographies thématiques / Braking Maneuvers

Littérature scientifique sur le sujet « Braking Maneuvers »

Auteur : Grafiati
Publié le 10 mars 2023

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Articles de revues sur le sujet "Braking Maneuvers"

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F. Corzo, Santiago, D. E. Ramajo et N. M. Nigro. « Transient Numerical Assessment of Race Car Dry-Sump Oil Under Extreme Maneuvers ». International Journal of Automotive and Mechanical Engineering 15, no 3 (5 octobre 2018) : 5636–51. http://dx.doi.org/10.15282/ijame.15.3.2018.18.0433.

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A numerical assessment of a dry-sump oil system was performed by Computational Fluid Dynamics (CFD). Unlike conventional cars, race cars are subjected to high accelerations that induce oil sloshing. Hence, dry-sump oil systems are required to collect the oil outside of the engine prior to be pumped inside of it again. To avoid engine malfunctions, the dry-sump must guarantee continuously oil suction in every maneuver. To perform such simulations, the model was subjected to different car maneuvers extracted from data acquisition available from real race car. It has showed that single and combined maneuvers, such as acceleration, braking and turnings can induce downward, upward and lateral accelerations higher than 2 g during several seconds. Therefore, four different single maneuvers (acceleration, deceleration, turn right and turn left) as well as a set of contaminated maneuvers (braking and turning) were studied. Simulations were achieved by mean of the Volume of Fluid Method (VOF) for an air-oil system. The influence of the turbulence modeling was also investigated. First a forerunner design was analyzed and both the race car tests and CFD simulations showed that for the most extreme maneuvers (pure braking and combined with braking and turning right) the original design failed before the end of the maneuvers by air suction in the pump inlet. In consequence, the dry-sump was redesigned and assessed under these extreme conditions until to ensure stable oil aspiration.
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Kremer, Christina, Markus Tomzig, Nora Merkel et Alexandra Neukum. « Using Active Seat Belt Retractions to Mitigate Motion Sickness in Automated Driving ». Vehicles 4, no 3 (11 août 2022) : 825–42. http://dx.doi.org/10.3390/vehicles4030046.

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The introduction of automated-driving functions provides passengers with the opportunity to engage in non-driving related tasks during the ride. However, this benefit might be compromised by an increased incidence of motion sickness. Therefore, we investigated the effectiveness of active seat belt retractions as a countermeasure against motion sickness during inattentive automated driving. We hypothesized that seat belt retractions would mitigate motion sickness by supporting passengers to anticipate upcoming braking maneuvers, by actively tensioning their neck muscles and, thereby, reducing the extent of forward head movement while braking. In a motion base driving simulator, 26 participants encountered two 30 min automated drives in slow-moving traffic: one drive with active seat belt retractions before each braking maneuver and a baseline drive without. The results revealed that there was no difference in perceived motion sickness between both experimental conditions. Seat belt retractions resulted in an increased activity of the lateral neck muscles and supported drivers to anticipate braking maneuvers. However, at the same time, the retractions led to an increased magnitude of head movement in response to braking. This research lays the groundwork for future research on active seat belt retractions as a countermeasure against motion sickness and provides directions for future work.
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Koppa, Rodger J., Daniel B. Fambro et Richard A. Zimmer. « Measuring Driver Performance in Braking Maneuvers ». Transportation Research Record : Journal of the Transportation Research Board 1550, no 1 (janvier 1996) : 8–15. http://dx.doi.org/10.1177/0361198196155000102.

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A simple, reliable instrumentation package with an on-board computer for installation in a test vehicle or the test driver's own vehicle is described. This package was used in a research project recently completed, an empirical investigation of stopping sight distance. Selected data on perception-response time (PRT) and braking performance under artificial and simulated on-the-road emergency conditions are presented. PRTs were less than the AASHTO assumed constant of 2.5 sec even at the 95th percentile. Braking performance in terms of steady deceleration was greater than −0.32 g at the 95th percentile.
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Ming, Zhang, Nie Hong, Wei Xiao‐hui, Qian Xiaomei et Zhou Enzhi. « Modeling and simulation of aircraft anti‐skid braking and steering using co‐simulation method ». COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 28, no 6 (13 novembre 2009) : 1471–88. http://dx.doi.org/10.1108/03321640910992029.

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PurposeThe purpose of this paper is to introduce a co‐simulation method to study the ground maneuvers of aircraft anti‐skid braking and steering.Design/methodology/approachA virtual prototype of aircraft is established in the multibody system dynamics software MSC.ADAMS/Aircraft. The anti‐skid braking control model, which adopts the multi‐threshold PID control method with a slip‐velocity‐controlled, pressure‐bias‐modulated (PBM) system, is established in MATLAB/Simulink. EASY5 is used to establish the hydraulic system of nose wheel steering. The ADAMS model is connected to block diagrams of the anti‐skid braking control model in MATLAB/Simulink, and is also connected to the block diagrams of nose wheel steering system model in EASY5, so that the ground maneuvers of aircraft anti‐skid braking and steering are simulated separately.FindingsResults are presented to investigate the performance of anti‐skid braking system in aircraft anti‐skid simulation. In aircraft steering simulation, the influence of two important parameters on the forces acting on the tires is discussed in detail, and the safe area to prevent aircraft sideslip is obtained.Originality/valueThis paper presents an advanced method to study the ground maneuvers of aircraft anti‐skid braking and steering, and establishes an integrated aircraft model of airframe, landing gear, steering system, and anti‐skid braking system to investigate the interaction of each subsystem via simulation.
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Wu, Xingwei, Linda Ng Boyle et Dawn Marshall. « Drivers’ Avoidance Strategies When Using a Forward Collision Warning (FCW) System ». Proceedings of the Human Factors and Ergonomics Society Annual Meeting 61, no 1 (septembre 2017) : 1939–43. http://dx.doi.org/10.1177/1541931213601964.

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Forward collision warning (FCW) systems help prevent rear-end collisions by identifying and alerting drivers of threats ahead. Understanding drivers’ avoidance strategies i.e. the tendency to brake or steer is important for the design and effectiveness of these systems. A driving simulator study was performed across five US locations to examine three driver avoidance maneuvers: braking only, steering only and combined braking and steering. A log-linear analysis was used to investigate the likelihood of an avoidance maneuver given the driver characteristics (age, gender) and study location. Findings showed that drivers aged 40 years and older were more likely to use a combined braking and steering maneuver to avoid a rearend collision. Drivers from two coastal urban areas (Washington, D.C. and Seattle, WA) were less likely to choose braking only in response to FCW alerts. Younger drivers and drivers that live in more rural areas (Clemson, SC and Iowa City, IA) were more likely to select braking only to avoid a crash, which could be due to their experience in less congested traffic environment. The findings of this study provide some insights on the factors associated with various avoidance strategies among drivers. This understanding can help guide the design of future in-vehicle collision warning systems.
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Jurecki, Rafał S., Tomasz L. Stańczyk et Mateusz Ziubiński. « Analysis of the Structure of Driver Maneuvers in Different Road Conditions ». Energies 15, no 19 (26 septembre 2022) : 7073. http://dx.doi.org/10.3390/en15197073.

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The safety of road users is one of the priority issues taken into account in both the operation and design of vehicles. The presented work is part of a study that aims to develop a method for parametric assessment of driver behavior. The driving style of a driver depends on their skills and psychophysical characteristics, the type and performance of the vehicle used by the driver, and the type of road. This method involves the continuous measurement of the longitudinal and lateral acceleration values of a vehicle body. The paper analyzes how the type of road influences the structure of the maneuvers undertaken by the driver. The paper formulates criteria for distinguishing basic maneuvers (acceleration, braking, and turning). The structure of maneuvers was analyzed for two parameters: the extreme value of acceleration occurring during the execution of a given maneuver and the frequency of maneuvers during the passage of a given route. The analysis presented in this paper confirms that the type of road has a significant influence on the structure of the maneuvers undertaken by the driver.
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Huertas-Leyva, Pedro, Giovanni Savino, Niccolò Baldanzini et Marco Pierini. « Loss of Control Prediction for Motorcycles during Emergency Braking Maneuvers Using a Supervised Learning Algorithm ». Applied Sciences 10, no 5 (4 mars 2020) : 1754. http://dx.doi.org/10.3390/app10051754.

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The most common evasive maneuver among motorcycle riders and one of the most complicated to perform in emergency situations is braking. Because of the inherent instability of motorcycles, motorcycle crashes are frequently caused by loss of control performing braking as an evasive maneuver. Understanding the motion conditions that lead riders to start losing control is essential for defining countermeasures capable of minimizing the risk of this type of crashes. This paper provides predictive models to classify unsafe loss of control braking maneuvers on a straight line before becoming irreversibly unstable. We performed braking maneuver experiments in the field with motorcycle riders facing a simulated emergency scenario. The latter involved a mock-up intersection in which we generated conflict events between the motorcycle ridden by the participants and an oncoming car driven by trained research staff. The data collected comprises 165 braking trials (including 11 trials identified as loss of control) with 13 riders representing four categories of braking skill, ranging from beginner to expert. Three predictive models of loss of control events during braking trials, going from a basic model to a more advanced one, were defined using logistic regressions as supervised learning methods and using the area under the receiver operating characteristic (ROC) curve as a performance indicator. The predictor variables of the models were identified among the parameters of the vehicle kinematics. The best model predicted 100% of the loss of control and 100% of the full control cases. The basic and the more advanced supervised models were adapted for loss of control identification with time series data, and the results detecting in real-time the loss of control events showed excellent performance as well as with the supervised models. The study showed that expert riders may maintain stability under dynamic conditions that normally lead less skilled riders to a loss of control or falling events. The best decision thresholds of the most relevant kinematic parameters to predict loss of control have been defined. The thresholds of parameters that typically characterize the loss of control such as the yaw rate and front-wheel lock duration were dependent on the rider skill levels. The peak-to-root-mean-square ratio of roll acceleration was the most robust parameter for identifying loss of control among all skill levels.
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Koch, Andreas, Jonas Brauer et Jens Falkenstein. « Drivability Optimization of Electric Vehicle Drivetrains for Brake Blending Maneuvers ». World Electric Vehicle Journal 13, no 11 (4 novembre 2022) : 209. http://dx.doi.org/10.3390/wevj13110209.

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Electric vehicle drivetrains are considered a way to reduce greenhouse gas emissions from road traffic. The use of electric drives in automotive vehicles offers advantages, such as the potential to recover energy during braking (regenerative braking). The limitation of the maximum air gap torque of the vehicle drive machine by several factors requires a temporary standalone or simultaneous use of the conventional vehicle wheel brake. In several studies, it is shown that during braking operations, the drive machine and the vehicle wheel brake can induce torsional oscillations in the drivetrain, which have a negative influence on the driving comfort and lead to a high mechanical load. To reduce these oscillations, the simultaneous use of an active anti-jerk control is necessary. Due to the problem of oscillation excitations caused by a brake intervention, the used drivability function (integrated prefilter, anti-jerk control) is investigated and optimized with regard to brake blending maneuvers and the effectiveness for damping torsional oscillations. Therefore, the dynamics of the drivetrain are adapted to the dynamics of the braking system using the prefilter, which leads to precise fulfilment of the driver’s braking desire, even during dynamic brake blending maneuvers. All investigations are carried out with a hardware-in-the-loop test bench to create reproducible results.
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Cai, Haohao, et Xiaomei Xu. « Lateral Stability Control of a Tractor-Semitrailer at High Speed ». Machines 10, no 8 (20 août 2022) : 716. http://dx.doi.org/10.3390/machines10080716.

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To improve the high-speed lateral stability of the tractor-semitrailer, a lateral stability control strategy based on the additional yaw moment caused by differential braking is proposed and investigated based on the co-simulation environment. First of all, a five-degree-of-freedom (5-DOF) yaw-roll dynamic model of the tractor-semitrailer is established, and the model accuracy is verified. Secondly, the lateral stability control strategy of the tractor-semitrailer is proposed, two yaw moment controllers and the braking torque distributor are designed. Then, the effectiveness of the proposed control strategy and the influence of the yaw moment controller on the lateral stability of the tractor-semitrailer are investigated under the high-speed lane-change maneuvers. Finally, the controller robustness is discussed. Research results show that the proposed high-speed lateral stability control strategy can ensure the tractor-semitrailer to perform safely the single lane-change (SLC) maneuver at 110 km/h and the double lane-change (DLC) maneuver at 88 km/h; the yaw moment controller has significant influence on the lateral dynamic performance of the tractor-semitrailer; compared with the proportional-derivative (PD) control, the model predictive control (MPC) can make the tractor-semitrailer obtain better lateral stability under high-speed lane-change maneuvers; MPC and PD controllers exhibit good robustness to the considered vehicle parameter uncertainties.
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Chinnaraj, K., M. Sathya Prasad et C. Lakshmana Rao. « Experimental Analysis and Quasi-Static Numerical Idealization of Dynamic Stresses on a Heavy Truck Chassis Frame Assembly ». Applied Mechanics and Materials 13-14 (juillet 2008) : 271–80. http://dx.doi.org/10.4028/www.scientific.net/amm.13-14.271.

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The current trend in automotive design is to optimize components for weight. To achieve this, automotive designers need to have complete understanding of various stresses prevalent in different areas of the component. The chassis frame assembly of a heavy truck used for long distance goods hauling application is chosen for this investigation and dynamic stress-strain response of the component due to braking and cornering maneuvers are experimentally measured and reported. A quasi-static approach that approximates the dynamic maneuvers into number of small processes having static equilibriums is followed to carry out the numerical simulation, approximating the dynamic behavior of frame rail assembly during cornering and braking. With the help of commercial finite element package ANSYS, the quasi-static numerical simulations are carried out and compared with experimental results. This study helps in understanding prevailing stresses in truck frame rails especially during cornering and braking maneuvers and brings out all geometric locations that may be potential failure initiation locations. This study makes a case for further investigation on the effects of residual and assembly stresses on frame rails.
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Thèses sur le sujet "Braking Maneuvers"

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Fors, Victor. « Optimal Braking Patterns and Forces in Autonomous Safety-Critical Maneuvers ». Licentiate thesis, Linköpings universitet, Fordonssystem, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-147719.

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The trend of more advanced driver-assistance features and the development toward autonomous vehicles enable new possibilities in the area of active safety. With more information available in the vehicle about the surrounding traffic and the road ahead, there is the possibility of improved active-safety systems that make use of this information for stability control in safety-critical maneuvers. Such a system could adaptively make a trade-off between controlling the longitudinal, lateral, and rotational dynamics of the vehicle in such a way that the risk of collision is minimized. To support this development, the main aim of this licentiate thesis is to provide new insights into the optimal behavior for autonomous vehicles in safety-critical situations. The knowledge gained have the potential to be used in future vehicle control systems, which can perform maneuvers at-the-limit of vehicle capabilities. Stability control of a vehicle in autonomous safety-critical at-the-limit maneuvers is analyzed by the use of optimal control. Since analytical solutions of the studied optimal control problems are intractable, they are discretized and solved numerically. A formulation of an optimization criterion depending on a single interpolation parameter is introduced, which results in a continuous family of optimal coordinated steering and braking patterns. This formulation provides several new insights into the relation between different braking patterns for vehicles in at-the-limit maneuvers. The braking patterns bridge the gap between optimal lane-keeping control and optimal yaw control, and have the potential to be used for future active-safety systems that can adapt the level of braking to the situation at hand. A new illustration named attainable force volumes is introduced, which effectively shows how the trajectory of a vehicle maneuver relates to the attainable forces over the duration of the maneuver. It is shown that the optimal behavior develops on the boundary surface of the attainable force volume. Applied to lane-keeping control, this indicates a set of control principles similar to those analytically obtained for friction-limited particle models in earlier research, but is shown to result in vehicle behavior close to the globally optimal solution also for more complex models and scenarios.
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Šabík, Matúš. « Analýza jízdních manévrů vozidel za snížené adheze ». Master's thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241210.

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This master’s thesis deals with driving maneuvers at low coefficient of adhesion, especially in winter season. It includes a list of adhesion coefficients on many surfaces, published by various authors. Figures were through the use of statistical methods divided into normal and exceeding. There are described terms having impact on adhesion. For determination of adhesion was used tests like emergency braking, circle test and slalom. The major part contains specification of used vehicles, surfaces, weather conditions, measuring devices and realized tests. In addition to using accelerometer, there was a successful attempt to use timekeeping facilities to determine deceleration of vehicle. Acquired data were processed and compared to another publications.
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Sengupta, Abhinav, et Alexey Gurov. « Evaluating the effectiveness of collisionavoidance functions using state-of-the-artsimulation tools for vehicle dynamics ». Thesis, KTH, Fordonsdynamik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-159262.

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The main goal of this work is to gain knowledge of how and to what extent state-of-the-artsimulation tools can be used in a conceptual development phase for vehicle dynamics control atVolvo Car Corporation (VCC).The first part of the thesis deals with an evaluation of vehicle dynamics simulation tools and theiruses. The three simulation tools selected for the study, namely Mechanical Simulation CarSim 8.2.1,IPG CarMaker 4.0.5, and VI-Grade CarRealTime V14, are briefly described and discussed. In order toevaluate and compare these tools with respect to application for vehicle dynamics control, a criterialist is developed covering aspects such as tool requirements and intended usage. Based on thecriteria list and certain identified drawbacks, a ranking of the tools is made possible. Furthermore,the process of developing vehicle models for the different tools is discussed in detail, along with theprocedure of validating the vehicle models.In the second part, the concept of Collision Avoidance Driver Assistance (CADA) function isintroduced and possible approaches for developing CADA functions are discussed in brief. It isimportant to note that the CADA functions in this work are based on cornering the vehicle i.e.maneuvering around the threat, rather than solely reducing vehicle speed. A number ofimplementations of the functions are developed in Simulink. A frequency analysis of a simplifiedlinear vehicle model is performed to investigate the influence of steering, differential braking, andtheir combination on the resultant lateral displacement of the vehicle during an evasive maneuver.The developed CADA functions are then simulated using the vehicle simulation tools. Two specificmetrics - Lateral Displacement gain and DeltaX - are formulated to evaluate the effectiveness of theCADA functions. Based on these metrics, the assistance obtained due to the functions for a specificevasive maneuver is compared.From the evaluation process of the three tools, two were considered suitable for the purpose ofsimulating collision avoidance functions. The evaluation of the CADA functions demonstrates thatcombined assistive steering with differential braking provides considerable assistance in order toavoid collisions. The simulation results also present interesting trends which provide a usefuldirection regarding the conditions for intervention by such collision avoidance functions during anevasive maneuver. The use of simulation tools makes it possible to observe these trends and utilizethem in the development process of the functions.
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GIOVANNINI, FEDERICO. « Analysis of the stability of motorcycles during braking maneuvers ». Doctoral thesis, 2014. http://hdl.handle.net/2158/866025.

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The decreasing number of road accidents in Europe is correlated to the massive application of active safety systems on the vehicles. The evolution of advanced safety technologies, unfortunately does not apply also to Powered Two-Wheelers (PTWs). The raising trend of PTWs circulation in the streets has not been followed by an equal development of innovative active safety systems for those vehicles. The complex dynamics of PTWs slows down the design of new technologies and limits the possibility to find relevant solutions to address crucial aspects for road safety, as the vehicle stability under emergency situations. That points out the necessity to develop new advanced riding assistance systems able to enhance the riders and PTWs safety. Accordingly, the present work studies the potentialities of the current braking systems for PTWs application and describes the design of a new braking system. Relevant issues related to the development of the advanced braking system, as the real-time estimation of the vehicle speed and tire-road friction, are addressed. Fall detection parameters, used to control the stability of the vehicle during emergency maneuvers, are defined and verified by virtual and experimental data. The analysis of different aspects correlated to the braking dynamics of PTWs gave the possibility to define a new concept of braking force modulation applicable in case of loss of stability. Rationales, benefits and limitations of this new safety function, named Active Braking Control (ABC), are presented in detail. The virtual tests carried out to assess the potentialities of the system, demonstrated the effectiveness of the new braking force modulation strategy, in terms of improvement of vehicle stability and control.
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Pallacci, Thomas. « Development of an agent model based on naturalistic data to simulate rider’s braking maneuvers ». Doctoral thesis, 2022. http://hdl.handle.net/2158/1277080.

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Mobility has been changed in the last decade and it is supposed to change in the next years. New means of transportation and new road users will be present on public roads. To improve road safety, road users’ behavior has to be studied as well as their interactions. For this reason, since 1950s researchers tried to model how users move in traffi c. Although many papers have deeply investigated car drivers’ behavior and many diff erent models have been developed, other road users’ behavior has not been so well studied and modeled. As a matter of fact, in traffi c simulators, motorcyclists’ models are usually derived from car drivers’ ones, despite their behaviors are diff erent (lane-based vs. non-lane-based). Each user should be simulated with specifi c models to make simulations more realistic in such a developing and complex scenario, as the current one, where heterogeneous traffi c fl ows are increasingly relevant because of the coexistence of vehicles (both conventional and with diff erent levels of automation), PTW, bicycles (both conventional and electric), e-scooters, mono-wheel, etc. For this reason in this thesis a new kind of behavioral model is proposed to simulate PTWs. The main goal was to obtain a model (suggesting new approach) specifi c for riders. The proposed architecture includes AI algorithms to make the model able to adapt its responses to diff erent conditions without rigid constrains that can be found in classical mathematical behavioral models. For this reason Naturalistic data has been analyzed, to identify the main factors that drive riders’ decision-making process and their maneuvers execution. The model was developed according to the agent-based modeling approach, with a specifi c focus on micro-simulations. The whole development of a new model goes beyond the eff ort of a PhD, this thesis focused on the development of the model architecture and of the braking maneuver, being the most frequent action in safety-critical conditions. Since driving behavior can be modeled at diff erent levels, the presented model focused on Tactical and Operational ones. The proposed study is divided in four parts. First a naturalistic riding database was analyzed; then, according to the obtained results, the architecture of the model was defi ned and developed. The performance of each part and the whole model was evaluated, and fi nally the model was applied to a case study and integrated in a microscopic traffi c simulation tool. The study showed the feasibility of a new approach that can reproduce riders’ maneuvers with high level of realism.
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Chapitres de livres sur le sujet "Braking Maneuvers"

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Kallenbach, Stephan, Ralph-Carsten Lülfing et Klaus Plähn. « Evasive Maneuver Assist (EMA) – enhanced vehicle safety using a combination of braking and steering ». Dans Proceedings, 287–301. Wiesbaden : Springer Fachmedien Wiesbaden, 2017. http://dx.doi.org/10.1007/978-3-658-19059-0_16.

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Ackermann, Carlo, R. Isermann, Sukki Min et Changwon Kim. « Design of a decision maker for an evasive or braking maneuver for collision avoidance ». Dans Proceedings, 401–15. Wiesbaden : Springer Fachmedien Wiesbaden, 2014. http://dx.doi.org/10.1007/978-3-658-05130-3_28.

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Schramm, Alexander E., Luca Leonelli et Silvio Sorrentino. « Motorcycle Driveline Stability in a Minimal Model Including Roll Angle During a Braking Maneuver ». Dans Lecture Notes in Mechanical Engineering, 1081–89. Cham : Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07305-2_100.

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Zalewski, Jarosław. « Impact of Road Conditions on the Normal Reaction Forces on the Wheels of a Motor Vehicle Performing a Straightforward Braking Maneuver ». Dans Communications in Computer and Information Science, 24–33. Cham : Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24577-5_3.

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« Experimental Study of ObserversOFyEandOFyUon a Coupling Turning/Braking Maneuver ». Dans Vehicle Dynamics Estimation using Kalman Filtering, 209–16. Hoboken, NJ USA : John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118578988.app3.

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Actes de conférences sur le sujet "Braking Maneuvers"

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Schafer, Devin, et Pingen Chen. « Minimum Safety Distances for Emergency Braking Maneuvers in Car-Following Applications ». Dans ASME 2020 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/dscc2020-3253.

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Abstract Platooning/car following has been considered as a promising approach for improving vehicle efficiency due to the reduction of aerodynamic force when closely following a pilot vehicle. However, safety is a major concern in the close car platooning/following. This paper investigates the minimum inter-vehicle distances required for a passenger vehicle to safely travel behind a heavy-duty truck with three different types of emergency maneuvers. The three emergency maneuvers considered are braking only, steering only, and braking then steering, where steering refers to a single lane change maneuver. Numerical analysis is conducted for deriving the clearance space in the braking only scenario. In addition, simulations are conducted in MATLAB/Simulink, using a bicycle model for the vehicle dynamics, to examine the minimum safe following distance for the other two scenarios. The simulation results show that, for initial vehicle speeds greater than 8 m/s, a lane change maneuver requires the shortest safety distance. Braking followed by lane changing usually requires the largest minimum safety distance.
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Murthy, Dharshan Krishna, et Alejandro Masrur. « A Subplatooning Strategy for Safe Braking Maneuvers ». Dans 2017 Euromicro Conference on Digital System Design (DSD). IEEE, 2017. http://dx.doi.org/10.1109/dsd.2017.72.

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Taheri, Saied. « A Simple ABS Control Strategy ». Dans ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49303.

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A new control strategy for Anti-lock Braking System was developed to improve vehicle braking during emergency maneuvers. Various prediction and re-selection methods were evaluated using a nonlinear vehicle model. To improve upon the evaluated control strategies, Conjugate Boundary method and Poincare Mapping concept were used. The new control strategy developed has proved to be more effective during emergency braking and steering maneuvers.
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von Glasner, Egon-Christian, Hans-Christian Pflug, Rolf Povel et Klaus Wüst. « The Compatibility of Tractor/Trailer-Combinations During Braking Maneuvers ». Dans International Truck & Bus Meeting & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 1997. http://dx.doi.org/10.4271/973282.

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Diederichsa, Frederik, et Gloria Pöhlerb. « Driving Maneuver Prediction Based on Driver Behavior Observation ». Dans Applied Human Factors and Ergonomics Conference. AHFE International, 2021. http://dx.doi.org/10.54941/ahfe100705.

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With respect to an increasing amount of driver assistance systems and automated driving functions, a higher chance of unappreciated action and intervention of these systems can be registered, which in turn lowers the acceptance by drivers and passengers. A reduction of unnecessary warnings and interventions can be achieved by making them adaptive to driver’s intentions and maneuvers planning. In order to learn which driver behavior indicates certain maneuver intentions, a rater-based method using video recordings is proposed in this paper. Three driving maneuvers, namely turning, changing lane and braking for a pedestrian who intends to cross the road, were chosen for analyzing their predictability due to behavior observation. As a first step, a driving simulator study was conducted in order to collect behavior data of 24 drivers. Subsequently, clearly distinguishable behavior classes for each maneuver were extracted from video data, resulting in five superior behavior categories with 29 behavioral classes. Based on these classes four human observers were trained to detect at the earliest convenience maneuver intentions. Overall in 97 % of all cases the observers could predict the maneuvers. Inter-rater reliabilities showed to be between κ= 0.30 and κ = 1.00.
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Bassi, L., F. Braghin, G. Politi, M. Sbrosi et A. Zuin. « Optimal Choice of Intra-Platoon Spacing Based on μ-Jump Maneuvers ». Dans ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48988.

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Platooning deals with the automatic control of a line of road vehicles travelling with small spacing among each other. Thus, advantages in terms of higher road capacity and lower fuel consumptions can be achieved. One critical issue is the determination of the spacing between platoon vehicles. Usually emergency braking simulations with vehicles having different braking capabilities and roads characterized by different friction conditions are used to determine this spacing also considering effects of automatic control delays. In this paper a different and more critical condition is used to determine the target inter-vehicular spacing: emergency braking simulation on a road surface characterized by μ-jump conditions. Such maneuver, in which tire-road friction switches abruptly and repeatedly between high and low, is the typical maneuver adopted for assessing the performances of critical vehicle safety control logics such as ABS and ESP control algorithms.
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Kranz, Tobias, Stefan Hahn et Klaus Zindler. « Nonlinear lateral vehicle control in combined emergency steering and braking maneuvers ». Dans 2016 IEEE Intelligent Vehicles Symposium (IV). IEEE, 2016. http://dx.doi.org/10.1109/ivs.2016.7535449.

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Carlson, Christopher R., et J. Christian Gerdes. « Optimal Rollover Prevention With Steer by Wire and Differential Braking ». Dans ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-41825.

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This paper uses Model Predictive Control theory to develop a framework for automobile stability control. The framework is then demonstrated with a roll mode controller which seeks to actively limit the peak roll angle of the vehicle while simultaneously tracking the driver’s yaw rate command. Initially, control law presented assumes knowledge of the complete input trajectory and acts as a benchmark for the best performance any controller could have on this system. This assumption is then relaxed by only assuming that the current driver steering command is available. Numerical simulations on a nonlinear vehicle model show that both control structures effectively track the driver intended yaw rate during extreme maneuvers while also limiting the peak roll angle. During ordinary driving, the controlled vehicle behaves identically to an ordinary vehicle. These preliminary results shows that for double lane change maneuvers, it is possible to limit roll angle while still closely tracking the driver’s intent.
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Moshchuk, Nikolai, et Shih-Ken Chen. « Autonomous Parking Strategy ». Dans ASME 2008 International Mechanical Engineering Congress and Exposition. ASMEDC, 2008. http://dx.doi.org/10.1115/imece2008-66536.

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Parallel parking can be a difficult task for novice drivers or drivers who seldom drive in congested city where parking space is limited. Parking Assist is an innovative system designed to aid the driver in performing sometimes difficult parallel parking maneuvers. Many companies are developing such systems with major automakers, such as Valeo, Aisin Seiki, Hella, Robert Bosch, and TRW. For example, Toyota IPA (Intelligent Parking Assist) system uses a rear view camera and automatically steer the vehicle into the parking spot with driver controlling braking. This paper describes the development of parking path planning strategies based on available parking space. A virtual turn center will first be defined and derived based on vehicle configuration. Required parking space for one or two cycle parking maneuver will then be determined. Path planning strategies for both one and two turn parking maneuvers will be developed next. Finally CarSim simulation will be performed to verify the design.
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Zeyada, Yasser, Dean Karnopp, Mohammed El-Arabi et El-Sayed El-Behiry. « A Combined Active-Steering Differential-Braking Yaw Rate Control Strategy for Emergency Maneuvers ». Dans International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 1998. http://dx.doi.org/10.4271/980230.

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