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Dynamic braking

About: Dynamic braking is a research topic. Over the lifetime, 3472 publications have been published within this topic receiving 34897 citations. The topic is also known as: Rheostatic brake.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors show the possibility and effectiveness of using an electric brake of motor railcar rolling stock with an asynchronous traction drive as an automatic brake, since electric braking is unaffected by low temperatures and it can provide high efficiency protection from wheel slipping and skidding when integrated into a traction drive control system.
Abstract: This paper shows the possibility and effectiveness of using an electric brake of motor railcar rolling stock with an asynchronous traction drive as an automatic brake. Since electric braking is unaffected by low temperatures and it can provide high efficiency protection from wheel slipping and skidding when integrated into a traction drive control system, as well as control braking torque with a high speed. Many motor axes and, hence, high power railcar rolling stock can provide less braking distance at electric braking than does pneumatic braking, which is especially important for emergency braking. However, an electric brake can be used as an automatic one only if it can be driven even in the case of loss of power from the catenary or diesel generator. The possibility in principle and the workability of using an electric brake as an automatic one are analyzed on the basis of mathematical simulations. The electromagnetic processes in an asynchronous traction drive under such conditions are considered, and the actuation time of an electric brake in the absence of supplied power is determined.

10 citations

Patent
Joo Gon Kim1
24 Sep 2010
TL;DR: In this article, a regenerative braking system capable of minimizing uncomfortable feeling during the braking operation while improving responsiveness and control performance using an electric motor is presented. But the system is not suitable for high speed driving.
Abstract: Disclosed is a regenerative braking system capable of minimizing uncomfortable feeling during the braking operation while improving responsiveness and control performance by performing the braking operation using an electric motor. An electro-mechanical braking system is used when braking a rear wheel or front and rear wheels, so variable frictional braking is achieved, thereby maximizing the recovery rate of the regenerative energy.

10 citations

Patent
23 Jan 2014
TL;DR: In this paper, a computer-implemented method for determining dynamic braking data for use in a braking model of at least one train is presented, the method including: (a) determining an initial safety factor; (b) determining at least a dynamic braking adjustment factor based at least partially on the expected dynamic braking force, and (c) specified retarding forces of the train.
Abstract: Disclosed is a computer-implemented method for determining dynamic braking data for use in a braking model of at least one train, the method including: (a) determining at least one initial safety factor; (b) determining at least one dynamic braking adjustment factor based at least partially on (i) the expected dynamic braking force, and (ii) specified retarding forces of the train; and (c) determining at least one new safety factor based at least partially on the at least one initial safety factor and the at least one dynamic braking adjustment factor. Also disclosed are braking systems including dynamic braking for a train having at least one locomotive.

10 citations

Journal ArticleDOI
TL;DR: In this article, the actual regenerative braking force of an integrated starter/generator (ISG), which is varied with desired braking deceleration and vehicle speed, is calculated based on an analysis of the required decelerations, maximum braking forces of ISG, engine braking force and state of charge (SOC) of battery.
Abstract: The actual regenerative braking force of an integrated starter/generator (ISG), which is varied with desired braking deceleration and vehicle speed, is calculated based on an analysis of the required deceleration, maximum braking force of ISG, engine braking force and state of charge (SOC) of battery. Braking force distribution strategies are presented according to the actual regenerative braking force of ISG. To recover the vehicle’s kinetic energy maximally, braking shift rules for a mild hybrid electric vehicle (HEV) equipped with automatic manual transmission (AMT) are brought forward and effects of transmission ratios are considered. A test-bed is built up and regenerative braking tests are carried out. The results show that power recovered by the braking shift rules is more than that recovered by the normal braking control rules.

10 citations

Patent
27 Feb 1939
TL;DR: In this article, the authors proposed a liquid pressure braking system for vehicles, in which the braking effect on the rear wheels of a vehicle is automatically limited during strong brake applications, primarily for the purpose of stopping strong braking applications.
Abstract: This invention relates to liquid pressure braking systems for vehicles, and it has for its object to provide an improved construction of system in which the braking effect on the rear wheels of a vehicle is automatically limited during strong brake applications, primarily for the purpose of...

10 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202376
2022156
20216
202018
201925
201834