Safety brake performance evaluation and optimization of hydraulic lifting systems in case of overspeed dropping

Xu, Bing; Cheng, Min; Yang, Huayong; Zhang, Junhui; Yang, Meisheng

doi:10.1016/j.mechatronics.2013.10.005

Cited by 20 publications

(16 citation statements)

References 25 publications

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“…The most basic evaluation index of braking performance is braking efficiency, which refers to the braking distance or deceleration while the vehicle brakes on a flat road at a certain initial velocity [25].…”

Section: Braking Efficiencymentioning

confidence: 99%

Evaluation of regenerative braking based on single-pedal control for electric vehicles

Liu

et al. 2019

Front. Mech. Eng.

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More than 25% of vehicle kinetic energy can be recycled under urban driving cycles. A single-pedal control strategy for regenerative braking is proposed to further enhance energy efficiency. Acceleration and deceleration are controlled by a single pedal, which alleviates driving intensity and prompts energy recovery. Regenerative braking is theoretically analyzed based on the construction of the single-pedal system, vehicle braking dynamics, and energy conservation law. The single-pedal control strategy is developed by considering daily driving conditions, and a single-pedal simulation model is established. Typical driving cycles are simulated to verify the effectiveness of the single-pedal control strategy. A dynamometer test is conducted to confirm the validity of the simulation model. Results show that using the single-pedal control strategy for electric vehicles can effectively improve the energy recovery rate and extend the driving range under the premise of ensuring safety while braking. The study lays a technical foundation for the optimization of regenerative braking systems and development of single-pedal control systems, which are conducive to the promotion and popularization of electric vehicles.

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Section: Braking Efficiencymentioning

confidence: 99%

Evaluation of regenerative braking based on single-pedal control for electric vehicles

Liu

et al. 2019

Front. Mech. Eng.

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“…Basic research of brake systems allowed to receive quantitative characteristics of brake system operation and to describe their work in a dimensionless form (Xu, B., et al, 2013;Straky, 2003).…”

Section: Discussionmentioning

confidence: 99%

Providing Cavitation-Free Operation of Hydraulic Systems under Passing Load in Hydraulic Actuator

Musina¹,

Tselischev²,

Tselischev³

et al. 2015

MAS

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The problems of braking and positioning of hydraulic actuators are an integral part of output speed control in hydro-pneumatic actuators. This article is focused on a hydraulic braking of driven elements of machines and mechanisms which is carried out by devices known as brake valves (counterbalance, load control, over-centre valves). Brake valves are used to exclude overrunning speed under passing loads when the external load direction coincides with the direction of movement (rotation) of the hydraulic actuator. They provide a constant pressure in pressure line and prevent cavitation. In this article the design and operation of brake valves are analyzed. The need for brake valves in hydraulic machines with hydraulic actuators under a passing load is proved. As a result of theoretical research a mathematical model of dynamics of hydraulic actuator with a brake valve has been developed. This model unlike others takes into account the design of main and control spools of the brake valve. The problem of logging-running unit braking is solved by the use of the hydraulic brake valve as a part of hydraulic logging system.

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“…In this paper, to evaluate and improve the safety brake performance of hydraulic lifting ISSN: 2231-5381 http://www.ijettjournal.org Page 2 systems in this emergent case, a multi objective optimization model was proposed. [2].…”

Section: Literature Reviewmentioning

confidence: 99%

Review on Active Electro-hydraulic Thruster Brake for Application of Lifting Machine

Shirbhate¹,

Ratnaparkhi²

2015

IJETT

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-Thruster brake is device to retard the speed of moving machinery and stop it accurately to desire position. The braking force is applied to brake shoe by pre-stressed compression spring.The convectional thruster brake employs either an electromechanical thruster or passive hydraulic thruster. The electro mechanical thruster utilize electro mechanical solenoid to apply braking force, where as hydraulic thruster brake is applied a force via thruster that is operated by hydraulic force. The value of hydraulic force is fixed irrespective of load to under braking force or over braking force leading to slip the load i.e. improve load positioning or over force braking leading to excessive and un-necessary brake wear.

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Safety brake performance evaluation and optimization of hydraulic lifting systems in case of overspeed dropping

Cited by 20 publications

References 25 publications

Evaluation of regenerative braking based on single-pedal control for electric vehicles

Evaluation of regenerative braking based on single-pedal control for electric vehicles

Providing Cavitation-Free Operation of Hydraulic Systems under Passing Load in Hydraulic Actuator

Review on Active Electro-hydraulic Thruster Brake for Application of Lifting Machine

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