نتایج جستجو برای: braking

تعداد نتایج: 4267  

Journal: :Environmental science & technology 2008
Akihiro Iijima Keiichi Sato Kiyoko Yano Masahiko Kato Kunihisa Kozawa Naoki Furuta

Abrasion tests were conducted using a brake dynamometer to determine the antimony (Sb) emission factor originating from automobiles. Abrasion dusts from commercially available brake pads (nonasbestos organic type) were emitted into an enclosed chamber under various braking conditions in terms of initial driving speed and deceleration. Suspended dusts inside the chamber were collected on a quart...

Journal: :Expert Syst. Appl. 2015
Ricardo Maia Marco Silva Rui Araújo Urbano Nunes

This paper presents a fuzzy logic model of regenerative braking (FLmRB) for modeling EVs’ regenerative braking systems (RBSs). The model has the vehicle’s acceleration and jerk, and the road inclination as input variables, and the output of the FLmRB is the regeneration factor, i.e. the ratio of regenerative braking force to the total braking force. The regeneration factor expresses the percent...

2010
Jun Li Xiaojing Zha Dongsheng Wu

The main testing parameter of the roller brake tester is the braking force. Actually, there are some differences in results even if the same vehicle is tested on the same tester. So it will bring trouble to evaluate the braking performance accurately. Based on force analysis, the mathematical model of the roller opposite force type automobile brake tester is built in this article. And then the ...

1999
Simon Johnston David Galloway

Using the standard equation for the slowdown of a neutron star, we derive a formula for the braking index via integration rather than the conventional differentiation. The new formula negates the need to measure the second time derivative of the rotation frequency, .. ν. We show that the method gives similar braking indices for PSR B1509– 58 and the Crab pulsar to those already in the literatur...

2014
S. Gowri

Vehicle technology has increased rapidly in recent years, particularly in relation to braking system and sensing system. In parallel to the development of braking technologies, sensors have been developed that are capable of detecting physical obstacles, other vehicles or pedestrians around the vehicle. This development prevents accidents of vehicles using Stereo Multi-Purpose cameras, Automate...

2011
Otis T.C. Nyandoro Jimoh O. Pedro Barry Dwolatzky Olurotimi A. Dahunsi

This paper presents the formulation of a slipcontrol model for purposes of performing slip tracking of target slip. Antilock braking system modelling is performed to develop a quarter car vehicle deceleration model for braking without cornering. Input-state based feedback linearisation is applied to the highly non-linear developed antilock braking system model. Input-state feedback linearisatio...

2014
Shili Lin Wenji Song Ziping Feng

In order to realize voltage stabilization and energy saving of rail transit traction supply system, a Li-ion battery energy storage system (BESS) is presented for application in the DC traction grid to reuse the braking energy of the vehicles. According to the models of traction substation, power lines and vehicles, the braking energy saved by BESS is calculated in MatLAB/Simulink, and the perf...

Go-karts are popular sport mini-car in western countries, and there are gaining prominence in developing countries such as Nigeria. Its performance is determined by the chassis design and the braking system is its lifeline. Because of the lack of a suspension system and differentials, a good chassis must be able to bend and twist. This Go-kart is powered by a Yamaha Vino Automatic Petrol 2-str...

2002
John D. Lee Joshua D. Hoffman Timothy L. Brown

in the interest of information exchange. The opinions, findings and conclusions expressed in this publication are those of the author(s) and not necessarily those of the Department of Transportation or the National Highway Traffic Safety Administration. The United States Government assumes no liability for its content or use thereof. If trade or manufacturer’s names or products are mentioned, i...

Journal: :Gait & posture 2014
Jonas Östh Erik Eliasson Riender Happee Karin Brolin

Human body models (HBMs) for vehicle occupant simulations have recently been extended with active muscles and postural control strategies. Feedback control has been used to model occupant responses to autonomous braking interventions. However, driver postural responses during driver initiated braking differ greatly from autonomous braking. In the present study, an anticipatory postural response...

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