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hydraulic retarder energy storage
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Hydraulic storage: advantages and constraints
The advantages of hydraulic storage. These range from the maturity of the technology to the massive nature of the storage, not forgetting the speed of response times, the power reserve and the ability to rescue an electrical network under threat. 1.1. Mature technology. Hydraulic storage has been used in Switzerland since the creation of the ...
Comparison of various gating systems for investment casting …
Investment casting, hydraulic retard impeller, casting defect, numerical simulation, gating system Date received: 21 March 2020; accepted: 27 September 2020 Introduction
(PDF) Design of a filling ratio observer for a hydraulic …
Hydraulic retarders are auxiliary braking devices that reduce vehicle speed by converting its kinetic energy into thermal energy of a working fluid. This study analyzes the torque-output...
Mathematical model of a hydraulic retarder based on …
The working chamber and the control system are closely interconnected within the hydraulic retarder, forming a highly nonlinear system. Therefore, most mathematical models for predicting the braking torque of hydraulic retarders have separated the working chamber from the control systems, making it difficult to explain the …
Design of a filling ratio observer for a hydraulic retarder: An ...
Hydraulic retarders (HRs) are auxiliary braking devices of vehicles that can reduce vehicle speed by converting the kinetic energy of vehicle to thermal energy of working fluid. 1,2 Instead of service braking, HR can be used to regulate vehicle speed effectively under non-emergency braking conditions.
The Research on the Temperature Control Stability of Hydraulic Retarder …
In this work, the heat-producing properties of hydraulic retarder under different conditions and the oil external circulating performance is firstly analyzed. By researching the system''s adaptation to the limiting conditions, the aimed temperature to control is prescribed.
Sketches showing the principles of the hydraulic …
A hydraulic retarder is a widely used auxiliary braking device in HDCVs that prevents thermal failure of the main brake resulting from continuous braking. The working chamber and the control ...
What Are Retarders? A Comprehensive Guide
Hydraulic retarders use a fluid to generate resistance, which slows down the vehicle. They are typically used in heavy-duty trucks and buses. When the driver applies the brakes, a valve opens, allowing the hydraulic fluid to flow into the retarder. The fluid then creates resistance, which slows down the vehicle.
Hydraulic retarders for heavy vehicles: Analysis of fluid …
Hydraulic retarders are auxiliary braking devices that reduce the velocity of a vehicle, particularly when a vehicle is driven downhill. Such velocity reduction could reduce the …
Effects of blade lean angle on a hydraulic retarder
The kinetic energy of the oil is then converted into heat energy by the stator, and the heat energy is cooled eventually by a heat exchanger. 1 Compared with the conventional friction-based primary brakes, a hydraulic retarder can provide continuous braking over an extended period. As such, a hydraulic retarder can substantially reduce …
Sketches showing the principles of the hydraulic …
Idling power loss suppression techniques of hydraulic retarders in non-braking operating conditions are of great significance to improve vehicle driving efficiency. Most proposed idling power...
Recuperation gain for a hydraulic energy storage in automotive ...
Endoreversible model for a hydraulic recuperation system is presented. System''s temporal behavior follows from an ordinary differential equation system. Energy consumption savings up to 74% when the recuperation system is used. Driving cycle and system parameters have a crucial influence on the savings.
Simulation of inner flow field of the of hydraulic retarder of ...
The different channel section shapes of hydraulic retarder were analyzed. By using the time-averaged N-S equation and the standard k-ε turbulence and the SIMPLE-C algorithm simultaneously, the ...
Electromagnetic Retarder''s Power Recovery Device and
To regenerate the braking energy into the electrical energy, the resonant L-C circuit is configured in the retarder. The voltage generated in the retarder is simply modeled as a transformer.
Energy Saving Analysis of Vehicle Hydraulic Retarder Thermal Management System Based …
It can both reduce heat load of the engine cooling system, and enhance thermal stability of the hydraulic retarder while recovering and utilizing braking energy. First of all, according to the target vehicle model, hydraulic retarder cooling system model based on Rankine cycle is established.
Working principle of the hydraulic retarder. 1: oil tank; 2: oil.
Download scientific diagram | Working principle of the hydraulic retarder. 1: oil tank; 2: oil filter; 3: oil pump; 4: two-position two-way ... The hydraulic average energy recovery rate could be ...
Working principle of the hydraulic retarder. 1: oil tank; …
With regard to the constant-speed function of the water medium hydraulic retarder, this study designs a controller based on the neural network proportional–integral–derivative (PID) algorithm...
The Research on the Temperature Control Stability of Hydraulic Retarder ...
DOI: 10.4271/2016-01-8085 Corpus ID: 138767409; The Research on the Temperature Control Stability of Hydraulic Retarder Oil Based on Organic Rankine Cycle @inproceedings{Ren2016TheRO, title={The Research on the Temperature Control Stability of Hydraulic Retarder Oil Based on Organic Rankine Cycle}, author={Yanjun Ren and …
Recuperation gain for a hydraulic energy storage in automotive …
Here, we investigate a hydraulic recuperation system, possessing a bladder accumulator as energy storage device, as such a hydraulic storage has a …
Multiobjective Optimization Design of Double-Row Blades Hydraulic Retarder …
When rotor blades agitate internal working fluid of hydraulic retarder, mechanical energy is transformed into kinetic energy and pressure energy. When the working fluid impacts the stator in the high speed, the absolute speed of the working fluid at the rotor blade outlet is related to blade angle and speed, whereas the relative speed of …
Testing and performance analysis of an integrated electromagnetic and hydraulic retarder …
Testing and performance analysis of an integrated electromagnetic and hydraulic retarder for heavy-duty vehicles @article{Zhang2023TestingAP, title={Testing and performance analysis of an integrated electromagnetic and hydraulic retarder for heavy-duty vehicles}, author={Kai Zhang and Huichao Shang and Jing Xu and Jigao Niu …
Research on Temperature Stability of an Independent Energy …
Hydraulic retarder, as an auxiliary braking device, is widely used in commercial vehicles. Nowadays, the hydraulic retarder''s internal oil is mainly cooled by the coolant circuit directly.
A review of hydro-pneumatic and flywheel energy storage for …
This review will consider the state-of-the art in the storage of mechanical energy for hydraulic systems. It will begin by considering the traditional energy storage …
A review of energy storage technologies in hydraulic wind …
With the maturity of hydraulic technology and the emergence of its advantages, such as stepless speed regulation, a large power-to-weight ratio and reusable energy [14], [15], [16], since 2009 some scholars have successively proposed the concept of hydraulic wind turbines, as shown in Fig. 1.The principle is to realize the transformation …
Advances in Mechanical Engineering 2016, Vol. 8(10) 1–8 Design …
Hydraulic retarders are auxiliary braking devices that reduce vehicle speed by converting its kinetic energy into thermal energy of a working fluid. This study …
On the hysteresis characteristics and compensation control …
As the core component of the hydrodynamic retarder braking system, pneumatic proportional solenoid valve plays an important role in the process of braking torqu ... Multiobjective optimization design of double-row blades hydraulic retarder with surrogate model," Adv. Mech. Eng. 7 (2), 508185 (2015). ... Thirty-Fifth IAS Annual Meeting and ...
Design of a filling ratio observer for a hydraulic retarder: An ...
With the assistance of the observer, the hydraulic retarder can produce the required braking torque as quickly and as accurately as possible. This study simulates a feedback control system of the ...
Mathematical model of a hydraulic retarder based on …
A hydraulic retarder is a widely used auxiliary braking device in HDCVs that prevents thermal failure of the main brake resulting from continuous braking. The working chamber and the control ...
Advances in Mechanical Engineering 2016, Vol. 8(10) 1–8 Design of a filling ratio observer for a hydraulic retarder…
Research Article Advances in Mechanical Engineering 2016, Vol. 8(10) 1–8 The Author(s) 2016 DOI: 10.1177/1687814016674098 aime.sagepub Design of a filling ratio observer for a hydraulic retarder: An analysis of …
Experimental Analysis of Heavy Vehicle Hydraulic Retarder …
Abstract. The traditional control method of hydraulic retarder has poor control effect, and a precise control method of hydraulic retarder for heavy vehicle running downhill is proposed in this ...
Feasibility study of energy storage using hydraulic fracturing in …
This results in a decrease in net pressure and a loss of energy, which has a direct impact on the efficiency of energy storage. In this section, we study the efficiency of hydraulic fracture energy storage while considering fracture fluid leak-off. Before conducting the study, we made the following assumptions: 1.
Application of scale-resolving simulation to a hydraulic coupling, a hydraulic retarder, and a hydraulic …
Application of scale-resolving simulation to a hydraulic coupling, a hydraulic retarder, and a hydraulic torque converter December 2018 Journal of Zhejiang University - Science A: Applied Physics ...
Research on Parametric Design of Hydraulic Retarder Based on …
In order to optimize the design method and improve the performance of hydraulic retarder, the numerical simulation of multi-field coupling of heat, fluid and solid is carried out to ...
Research on the Performance of Magnetorheological Fluid …
Hydraulic retarder can convert the vehicle''s kinetic energy to the fluid heat energy, which can enormously alleviate the main brake''s workload. The traditional hydraulic retarder can provide enough braking torque but has a delay during the braking. In this paper, a new type of magnetorheological fluid (MR fluid) hydraulic retarder is ...
Integration analysis model of oil-charging system about parallel …
As a auxiliary braking device in vehicle''s downhill process, parallel hydraulic retarder has strict requirements for its rapidity of response performance and accuracy of braking torque. The parallel hydraulic retarder uses high-pressure gas as …
Scale-resolving simulations and investigations of the flow in a ...
The water medium (WM) retarder is an auxiliary braking device that could convert the kinetic energy of the vehicle to the thermal energy of the coolant, and it is used instead of the service brake ...
The Research on the Temperature Control Stability of Hydraulic Retarder …
The hydraulic retarder is an auxiliary braking device generally equipped on commercial vehicles. Its oil temperature change influences the brake performance of hydraulic retarder. The Organic Rankine Cycle (ORC) is a good means to recover exhausted heat. Moreover, it can cool oil and stably control
Scale-resolving simulations and investigations of the flow in a ...
The hydraulic retarder is a promising auxiliary brake system in commercial vehicles and its working principle is shown in Fig. 1. The basic components of a hydraulic retarder include a rotor, stator, transmis-sion shaft, heat exchanger, and charge control mechanism which includes a regulating valve and storage tank.
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