نتایج جستجو برای: braking

تعداد نتایج: 4267  

2000
Woosuk Choi Darbha Swaroop WOOSUK CHOI DARBHA SWAROOP

In this report, we present a methodology for assessing the benefits of different vehicle coordination strategies on the safety of a platoon during emergency braking. One can say that a coordinated braking strategy B is more beneficial than a strategy A, if strategy B leads to a larger reduction in the probability of a collision, the expected number of collisions, and the expected relative veloc...

2005
Stephen Justham Saul Rappaport Philipp Podsiadlowski

We examine the proposal that the subset of neutron-star and black-hole X-ray binaries that form with Ap or Bp star companions will experience systemic angular-momentum losses due to magnetic braking, not otherwise operative with intermediate-mass companion stars. We suggest that for donor stars possessing the anomalously high magnetic fields associated with Ap and Bp stars, a magnetically coupl...

2008
R. X. Xu

Pulsar braking torques due to magnetodipole radiation and to unipolar generator are considered, which results in braking index being less than 3 and could be employed to test the emission models. Improved equations to obtain pulsar braking index and magnetic field are presented if we deem that the rotation energy loss rate equals to the sum of the dipole radiation energy loss rate and that of r...

2007
MOHD. HASAN ALI MINWON PARK IN - KEUN YU

This paper analyzes the effect of the fuzzy logic-controlled braking resistor (BR) on minimizing shaft torsional oscillations of the generators in a multi-machine power system. The influence of communication delay associated with the fuzzy controller input calculation on minimizing shaft torque oscillations is investigated. Global Positioning System (GPS) is proposed for the practical implement...

Journal: :Journal of experimental psychology. Human perception and performance 2005
Brett R Fajen

This study explored visual control strategies for braking to avoid collision by manipulating information about speed of self-motion. Participants watched computer-generated displays and used a brake to stop at an object in the path of motion. Global optic flow rate and edge rate were manipulated by adjusting eye-height and ground-texture size. Stopping distance, initiation of braking, and the m...

2012
SONG Yunpu

This paper simplifies the energy recovery process in the series hydraulic hybrid bus’ energy regeneration system into a process in which the main axle’s moment of inertia drives the secondary element variable delivery pump/motor and brings hydraulic oil from the oil tank to the accumulator. This process enables braking of the vehicle and also allows recovery of energy to the accumulator. Based ...

1997
Richard I. Epstein

Variation in the angle α between a pulsar’s rotational and magnetic axes would change the torque and spin-down rate. We show that sudden increases in α, coincident with glitches, could be responsible for the persistent increases in spin-down rate that follow glitches in the Crab pulsar. Moreover, changes in α at a rate similar to that inferred for the Crab pulsar account naturally for the very ...

2010
Weihua Qin Qidong Wang Wuwei Chen Shenghui Pan

Based on the multibody dynamics model of Electric Power Steering System(EPS) and the lateral and longitudinal dynamics vehicle model, the EPS and Anti-lock Braking System (ABS) sub-controllers and the coordination controller are respectively designed according to the motion coupling relation between the steering system and the braking system. The coordination controller supervises and coordinat...

Journal: :Traffic injury prevention 2011
Eric R Teoh

OBJECTIVE Overbraking and underbraking have been shown to be common factors in motorcycle crashes. Antilock braking systems (ABS) prevent wheels from locking during braking and may make riders less reluctant to apply full braking force. The objective of this study was to evaluate the effect of ABS in fatal motorcycle crashes. METHODS Motorcycle drivers involved in fatal crashes per 10,000 reg...

2014
Qingzhang Chen Jonathan M. Weaver Guangju Xu

Abstract Sudden tire failure (a blowout) is a major cause of traffic accidents, many of them involving fatalities. If the automobile can quickly identify that a blowout has occurred, the braking system can be programmed to carry out braking and stability control to slow down the vehicle steadily. Hence, timely identification of a blowout or severe leakage is a key enabler of using the braking s...

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