scholarly journals Teenage and Adult Drivers’ Views of a One-Day Car Control Class on a Closed-Road Course

Safety ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 57
Author(s):  
Lauren Mims ◽  
Johnell O. Brooks ◽  
Casey Jenkins ◽  
Alexander Stronczek ◽  
Donnie Isley ◽  
...  
Keyword(s):  
Knowledge And Skills ◽  
Phone Interview ◽  
Emergency Situations ◽  
Driving Behaviors ◽  
Braking System ◽  
Driving Skills ◽  
Antilock Braking System ◽  
Hands On ◽  
The One ◽  
Seating Position

Traffic-related crashes impact drivers of all ages. Post-license driving classes have emerged to equip drivers with higher level skills needed to prevent and avoid emergency situations. A performance driving center offers teenage and adult car control classes designed to address defensive driving skills through both classroom instruction and hands-on practice on a closed-road track. To obtain the views from teenagers and adults, both groups completed a survey immediately after their classes, and the adults completed a phone interview six months later. Results from the teenage and adult survey showed that both groups reported the most important topics learned during the car control class were skid recovery, using the antilock braking system (ABS) and looking where the car should go. Both teenagers and adults reported that they plan to significantly change their driving behaviors, especially those concerning seating, hand and mirror positions. Overall, after the class, the teenagers and adults felt “moderately competent” in their ability to perform the exercises practiced during the class, which increased from the rating of “not competent” prior to the class. The results from the phone interview with the adults suggest that ABS braking was the most important topic six months later. ABS braking was also the single-most reported skill used after the class and the self-identified skill most used to avoid a crash. The phone interview showed that the adults accurately predicted their use of the behaviors (seating position, vision, distractions, etc.) and turned those behaviors taught during the class into habits of their daily driving. Overall, the results from the teenage and adult survey, as well as the phone interview with the adults, suggest that the participants benefitted from the knowledge and skills gained from the one-day car control class.

Real-Time Detection of Unsealed Surfaces During Skidding

2003 ◽  
Vol 1819 (1) ◽  
pp. 237-243
Author(s):  
Kerry J. McManus ◽  
Aaron S. Blicblau ◽  
Christopher J. Broadhurst ◽  
Ashley M. S. Carter
Keyword(s):  
Significant Degree ◽  
Emergency Braking ◽  
Emergency Situations ◽  
Passenger Vehicles ◽  
Braking System ◽  
Antilock Braking System ◽  
Road Surfaces ◽  
Timely Response ◽  
Braking Distance ◽  
Abs Algorithm

The antilock braking system (ABS) fitted to modern passenger vehicles is intended to provide reliable and efficient braking under critical road conditions or in emergency situations. Thus, ABS-equipped vehicles should remain steerable and maintain directional stability in the event of emergency braking. The ABS on vehicles operates on the principle of detection of brake lockup and release of the lockup to prevent an uncontrollable skid developing on sealed roads. However, on gravel roads or snow-covered roads braking distances can be reduced if brake lockup occurs and a wedge of gravel or snow is allowed to form in front of the wheels. The intervention of ABS prevents the wedge from forming to any significant degree, thereby extending the braking distance. An investigation was carried out of a method of discriminating between sealed and unsealed road surfaces in which a signal can be developed so that an alternative ABS algorithm can be applied specifically for gravel-covered surfaces. An attempt was made to identify and measure the buildup of gravel in front of the wheel directly, using an infrared distance-measurement sensor. Initial tests have shown that the system can provide a signal to the ABS, which will allow a timely response to enable intervention in the activation of the algorithms in the ABS.

scholarly journals Teenage Drivers’ Views of a Classroom and Closed-Road Post-License Advanced Driving Program, Guard Your Life

Safety ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 44 ◽  
Author(s):  
Lauren Mims ◽  
Johnell O. Brooks ◽  
Casey Jenkins ◽  
Breno Schwambach ◽  
Daniel Gubitosa
Keyword(s):  
Phone Interview ◽  
Emergency Braking ◽  
Driving Behaviors ◽  
Increased Risk ◽  
Hands On ◽  
The Us ◽  
Key Concepts ◽  
Teenage Drivers ◽  
Almost All

In the US, teenage drivers have an increased risk of being involved in crashes. To address this, post-license advanced driving programs have emerged. This study gains teenagers’ perspective of a post-license defensive driving program focused on a hands-on introduction to emergency braking, skid recovery and the dangers of distracted driving. The teenagers completed a survey immediately following the program and a phone interview three months later. The open-ended survey and phone interview items reflect the program’s key concepts. During the follow-up phone interview, the majority of teenagers reported using the skills experienced and half of the participants who participated in the phone interview reported using skills that they learned to avoid a crash. Almost all teenagers reported anticipating or changing their driving behaviors, specifically by reducing distractions, having a heightened awareness and changing their driving position. The survey and follow-up phone interview results suggest that the teenagers benefited from the skills introduced and, from the teenagers’ perspective, has helped them avoid crashes.

scholarly journals Design, Analysis and Application of Single-Wheel Test Bench for All-Electric Antilock Braking System in Electric Vehicles

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1294
Author(s):  
Xiangdang XUE ◽  
Ka Wai Eric CHENG ◽  
Wing Wa CHAN ◽  
Yat Chi FONG ◽  
Kin Lung Jerry KAN ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Test Bench ◽  
Potential Candidate ◽  
Vertical Force ◽  
Abs Algorithms ◽  
Braking System ◽  
Vehicle Velocity ◽  
Antilock Braking System ◽  
Antilock Braking ◽  
Electromechanical Brake

An antilock braking system (ABS) is one of the most important components in a road vehicle, which provides active protection during braking, to prevent the wheels from locking-up and achieve handling stability and steerability. The all-electric ABS without any hydraulic components is a potential candidate for electric vehicles. To demonstrate and examine the all-electric ABS algorithms, this article proposes a single-wheel all-electric ABS test bench, which mainly includes the vehicle wheel, the roller, the flywheels, and the electromechanical brake. To simulate dynamic operation of a real vehicle’s wheel, the kinetic energy of the total rotary components in the bench is designed to match the quarter of the one of a commercial car. The vertical force to the wheel is adjustable. The tire-roller contact simulates the real tire-road contact. The roller’s circumferential velocity represents the longitudinal vehicle velocity. The design and analysis of the proposed bench are described in detail. For the developed prototype, the rated clamping force of the electromechanical brake is 11 kN, the maximum vertical force to the wheel reaches 300 kg, and the maximum roller (vehicle) velocity reaches 100 km/h. The measurable bandwidth of the wheel speed is 4 Hz–2 kHz and the motor speed is 2.5 Hz–50 kHz. The measured results including the roller (vehicle) velocity, the wheel velocity, and the wheel slip are satisfactory. This article offers the effective tools to verify all-electric ABS algorithms in a laboratory, hence saving time and cost for the subsequent test on a real road.

Introducing Morphology

2021 ◽  
Author(s):  
Rochelle Lieber
Keyword(s):  
Mental Lexicon ◽  
The Other ◽  
Morphological Data ◽  
Theoretical Frameworks ◽  
The Third ◽  
Hands On ◽  
Morphological Theory ◽  
Basic Concepts ◽  
The One

A lively introduction to morphology, this textbook is intended for undergraduates with relatively little background in linguistics. It shows students how to find and analyze morphological data and presents them with basic concepts and terminology concerning the mental lexicon, inflection, derivation, morphological typology, productivity, and the interfaces between morphology and syntax on the one hand and phonology on the other. By the end of the text students are ready to understand morphological theory and how to support or refute theoretical proposals. Providing data from a wide variety of languages, the text includes hands-on activities designed to encourage students to gather and analyse their own data. The third edition has been thoroughly updated with new examples and exercises. Chapter 2 now includes an updated detailed introduction to using linguistic corpora, and there is a new final chapter covering several current theoretical frameworks.

Antilock Braking System Slip Control Modeling Revisited

2013 ◽  
Vol 393 ◽  
pp. 637-643 ◽  
Author(s):  
M.H.M. Ariff ◽  
Hairi Zamzuri ◽  
N.R.N. Idris ◽  
Saiful Amri Mazlan
Keyword(s):  
Braking Performance ◽  
Slip Control ◽  
Quarter Car Model ◽  
Braking System ◽  
Car Model ◽  
Starting Point ◽  
Antilock Braking System ◽  
The Subject ◽  
Control Modeling ◽  
Systems Studies

The introduction of anti-lock braking system (ABS) has been regarded as one of the solutions for braking performance issues due to its notable advantages. The subject had been extensively being studied by researchers until today, to improve the performance of the todays vehicles particularly on the brake system. In this paper, a basic modeling of an ABS braking system via slip control has been introduced on a quarter car model with a conventional hydraulic braking mode. Results of three fundamental controller designs used to evaluate the braking performance of the modeled ABS systems are also been presented. This revisited modeling guide, could be a starting point for new researchers to comprehend the basic braking system behavior before going into more complex braking systems studies.

Learning to Solve a Business Problem: ‘Hands-on’ Can Get Results

2007 ◽  
Vol 21 (6) ◽  
pp. 465-471 ◽  
Author(s):  
Robyn Neeson ◽  
Leo Billington ◽  
Rowena Barrett
Keyword(s):  
Small Business ◽  
Business Owner ◽  
Business Growth ◽  
Small Business Owner ◽  
Business Training ◽  
Hands On ◽  
Small Business Training ◽  
The One ◽  
The Individual ◽  
The Right

Small business training can facilitate business growth. The authors show that a ‘hands-on’ approach can have a direct impact on a business owner's current situation. They consider this in relation to the problem of being unable to find the right staff, demonstrating that a programme such as the one they describe enables learning and addresses the lack of time and resources faced by many small business owner-managers. Such programmes also accommodate the style, pace and circumstances of the individual learner. This has a number of implications for the delivery of training to small business owner-managers.

scholarly journals Learning Mathematics Through Mathematical Modelling Processes Within Sports Day Activity

2020 ◽  
Vol 10 (2) ◽  
pp. 105-114
Author(s):  
Sakon Tangkawsakul ◽  
Nuttapat Mookda ◽  
Weerawat Thaikam
Keyword(s):  
Mathematical Modelling ◽  
Mathematical Models ◽  
Mathematics Teachers ◽  
Mathematical Knowledge ◽  
Real Life ◽  
Knowledge And Skills ◽  
School Sports ◽  
Learning Mathematics ◽  
The One ◽  
Modelling Task

In this study, we adapted the school sports day to provide opportunities to relate real-life situations with mathematical knowledge and skills. The purpose of this study was to describe the way that the teachers interact with their students and the students’ responses during mathematical modelling processes. The designing of the modelling task was inspired by the Realistic Fermi Problems about the bleacher in the school sports day. The modelling task was designed by a collaboration of mathematics teachers and educators and experimented with 10th-grade students. Each experiment lasted for 45 minutes and was conducted in the one-day camp with 45 students. The results showed that the students who had no previous experience of mathematical modelling engaged in mathematical modelling processes with their friends under the guidance and supporting of the teacher. Most of them were able to think, make assumptions, collect data, observe, make conjectures and create mathematical models to understand and solve the modelling task.   

Sign in / Sign up

Export Citation Format

Share Document