Development of Tilt Control System Using Electro-Hydraulic Actuators

Light electric vehicles are alternative solutions to passenger cars in terms their lower costs and space saving in city traffic. Narrow tilting vehicles (NTV), known also as three–wheeled vehicles, can be equipped with an active tilting stability controller that tilts the vehicle automatically during cornering to enable lateral stability. There are mainly direct tilt control (DTC), steering tilt control (STC), and combined DTC–STC methods described in the literature. The DTC method is typically applied up to 10 km/h vehicle speeds. Considering city traffic and frequent start–stop cycles, the DTC method needs to be improved in terms of lower actuator torque and energy consumption. DTC can be designed by using either hydraulic or servo motor actuators. In state of the art, the servo motor actuator has not been studied in detail considering its integration and application aspects. Mostly, the actuator has been considered as a black box model. Proposed control method in this study enables improvements in the direct tilt control system (DTC) in terms of reducing the actuator peak torque and enables the application of DTC at higher vehicle speeds. Regarding the modeling of the electric actuator, a permanent magnet synchronous motor and field-oriented control model are also included in the simulation model. Modelling of the electric actuator enables accurate representation of actuator dynamics. In this way, battery Ah capacity can be sized and energy consumption of the electric actuator can be calculated for a given drive cycle. To this end, objective of this study is to design a direct tilt control method including the electrical drives and motion control concepts. In this way, an application methodology of the servo motor actuator is developed and implemented on a narrow tilting three-wheeled electric vehicle. Interactions between tilt control system and the servo motor actuator system are described from practical aspects.

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“…Comparison of electric and hydraulic actuators is given in [33]. The following comparison is given for active tilt control applications.…”

Section: Comparison Of Hydraulic and Servo Motor Actuatorsmentioning

confidence: 99%

Development and Experimental Implementation of Active Tilt Control System Using a Servo Motor Actuator for Narrow Tilting Electric Vehicle

Karamuk

Alankus

2022

Energies

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“…Tilting trains, which have tilting mechanism of carbody to compensate for the shortage of cant when speed-up on sharp curves, are introduced for such purpose; in early times, natural pendulum type mechanisms using centrifugal force itself for tilting action were applied to commercial trains in Japan. Although the natural pendulum type of tilting trains contributed to increase speed in curved sections, it was found that they had matters to induce some passengers' comfort in curved section [36,37] and high-performance actuator [38,39] with good response to the tilting command are both important in improving performance and ride quality of tilting trains.motion sickness. This was considered caused by the delay of tilting motion at the entry and exit of a curve due to mechanical non-ideality such as friction.…”

Section: Application Of Control Techniquesmentioning

confidence: 99%

Research Topics on Railway Vehicle Dynamics

TOMIOKA

2018

EPI-IJE

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Engineering research subjects relating railway vehicle dynamics are described as a literature survey in this paper. Research works concerning to the motion of wheelset; pantograph-catenary interaction; aerodynamic relating problems on the vehicle; and application of control techniques are introduced firstly as the most distinctive subjects of railway vehicle dynamics. The topics on safety assessment and ride comfort evaluation are also dealt with since those are important research area in railway dynamics as public transportation system. The subject concerning to carbody elastic vibration, which is important relating to ride comfort, is also described. The effect of passengers on the elastic vibration of carbody has been introduced as the interesting (and something surprising) topic. The focuses in the literature survey are particularly on the research works from Japan, in this paper.

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“…Ураховуючи наявність двох електромеханічних частин та двох пневморесор, диференційно-алгебраїчна система рівнянь, що визначає узагальнену математичну модель електромеханічної частини механізму нахилу, які наведено у [18,19], остаточно, набуває вигляду:…”

Section: рис 1 схема комбінованого механізму нахилу кузоваunclassified

“…В даний час приводи нахилу кузовів застосовуються на електропоїздах, що експлуатуються в багатьох країнах світу, включаючи Австралію [9], Німеччину [6], Іспанію [8], Італію [7], Канаду, Китай [11,12], Норвегію, Португалію, Словенію, США, Фінляндію [2,4], Францію [13], Швейцарію [14][15][16], Швецію [17] та Японію [18,19]. Таким чином, робота направлена на розвиток систем нахилу кузовів рухомого складу, є актуальною для розвитку швидкісного руху на залізницях в усьому світі.…”

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