Another hybrid option has been put forth and tested by a number of businesses, as well as the environmental protection agency epa. Development of power train of hybrid power excavator. A single hydraulic actuator rotates each parabolic mirror concentrator in 0. Control of an electronic expansion valve using an adaptive.
John deere 944k hybrid wheel loader is a powerful and. Kinetics drive solutions hydraulichybrid drives hhds replace conventional vehicle transmissions with a power distribution unit that decouples the wheels from the engine for superior engine management. A hybrid vehicle uses two or more distinct types of power, such as submarines that use diesel when surfaced and batteries when submerged. This project work titled automatic electrohydraulic jack for light vehicle has been conceived having studied the difficulty in lifting the any type of light vehicles. Isaac instruments dru900908 data logging devices with global positioning system gps antennas and j1939 controller. Our engineers designed the hydraulichybrid drive to address the. Automatic hydraulic jack inbuilt in a four wheeler parth m. Hydraulic hybrid vehicle seminar report, ppt, pdf for. A robot system for fire fighting in tunnels ieee 2005 16. The paper presents the basic principles of hybrid systems. The john deere 944k hybrid wheel loader is bolstering bottom lines by offering maximized productivity and efficiency through its hybridelectric drive system designed to lower daily operating costs. Using hydraulic accumulators and intelligent system solutions from hydac results in significant fuel savings. Though the traditional energy regeneration systemers which used a hydraulic motor and a generator in hybrid excavators can regenerate part of the energy, the power of the motor and the generator should be larger and the time for regenerating energy is so short.
The schematic of the parallel hydraulic hybrid propulsion system. Automatic transmission mechanical and hydraulic systems phase 2. Energysaving research of excavators is becoming one hot topic due to the increasing energy crisis and environmental deterioration recently. Hydraulic accumulatormotorgenerator energy regeneration. A hydraulic drive system to convert the stored energy to motive power. Our survey in the regard in several automobile garages, revealed the facts that mostly some difficult. This paper proposed a parameter matching method based on the energy storage unit, the accumulator in the parallel hydraulic hybrid excavator phhe. Our engineers designed the hydraulic hybrid drive to address the need for more efficient use of traditional energy sources. A more narrow definition has hybrids as single functioning units that juxtapose different technologies. With has we have combined the controllability of electromechanical actuators with the power density, longer life and resistive force capabilities of traditional hydraulic systems. Weldability of copperbearing aging steel y 1 122 lin tianliang, et al.
These outputs enter planetary differentials which combine the mechanical. Regenerative braking control strategy of electrichydraulic hybrid. Cn104246086a hydraulic hybrid swing drive system for. Considering such a hybrid actuator configuration to operate an aircraft control surface. Energysaving analysis of hydraulic hybrid excavator based.
Hydraulic accumulatormotorgenerator energy regeneration system for a hybrid hydraulic excavator. Except for clarity sake removing the element relevant to the second hydraulic circuit 33, the fluid power system 10 in fig. Although parallel hybrids offer the opportunity for engine downsizing, it is not adopted here to prevent any adverse. A hydraulic drive system is a quasihydrostatic drive or transmission system that uses pressurized hydraulic fluid to power hydraulic machinery. Kugi automation and control institute, tu wien, vienna, austria. Though the traditional energy regeneration system ers which used a hydraulic motor and a generator in hybrid excavators can regenerate part of the energy, the power of the motor and the generator should be larger and the time for regenerating energy is so short. Thus to be a true hybrid, the vehicle must have more than one mode of propulsion. Other means to store energy include pressurized fluid in hydraulic hybrids. This service guide contains information for troubleshooting and service. Jan 10, 2009 automatic electrohydraulic jack for four wheeler. Considering two aspects of the electrichydraulic hybrid system, energy recovery rate and current. Over speed indication and automatic accident avoiding system for four wheeler. Referring now to gyroscopic drive system 11 part of the hybrid power hydraulic drive system 10 shown in fig. Mathematical modelling of a hydraulic accumulator for hydraulic hybrid drives a.
In a hydraulic hybrid, pressurized fluid is used as secondary source of power. Hydraulic accumulatormotorgenerator energy regeneration system for a hybrid hydraulic excavator article pdf available in chinese journal of mechanical engineering 256 november 2012 with. Hybrid systems are coming into use for trucks, buses and other heavy highway vehicles. Research article energysaving analysis of hydraulic. The resulting hybrid offers robust, longlife tracking solutions for solar power and actuation systems for wind, hydro and other renewable energy systems, as well as fossil fuel applications. Automatic transmission mechanical and hydraulic systems phase 2 i. Agro hybrid structures in general the following structures can be appropriate for functional or tractiondrives on agricultural systems self propelled machine or tractorimplement system. In some advanced systems, a hydraulic transformer is included in order to convert output flow at any pressure. In a mobile working machine, there are mainly three possible sources for energy storage or. Investigating an allhydraulic hybrid system for diesel. By one definition, anything of mixed origin or composition is a hybrid. The hybrid drive system operates on a standard 110v household plugin or can be maintained off the grid with wind or solar power.
The quality they provide allows us to build reliability. In a hydraulic hybrid vehicle hhv a regular internal combustion engine and a hydraulic motor are used to power the wheels. Hydraulic hybrids use many of the same principles as electric hybrids, but instead of using potentially pollutive and heavy batteries, they use lightweight components and clean fluid to power. Hydraulics, hydraulic cylinders, marine, offshore, power units, seals, hoses, fittings, pumps, valves, manifolds, hydraulic system, 700 bar, 1600 bar, 2000 bar, 2500. This paper presents a hydraulic hybrid vehicle drive train to improve the.
Kinetics drive solutions hydraulic hybrid drives hhds replace conventional vehicle transmissions with a power distribution unit that decouples the wheels from the engine for superior engine management. In some systems, a hydraulic transformer is also installed for converting output flow at any pressure with a very low power loss. Hybrid electric vehicle systems overview our patented electric hybrid power system uses a parallel configuration that maintains the vehicles conventional drivetrain layout and uses patented controls to blend engine torque with electric torque to move the vehicle. With increasing levels of technology efforts being put to increase the comfort and safety. Introduction to how hydraulic hybrids work howstuffworks. Hybrid actuation in primary flight control systems rwth. The paper focusses on a hybrid system with realistic parameters concerning mass, power, and energy. The introduction of electro hydraulic pumps is a first step in the vehicle hybridization process that will one day lead to complete electrification for transport systems in large cities. That points to the represented by dotted arrows hybrid power hydraulic drive system. These can be done by implementation of better design.
Research article energysaving analysis of hydraulic hybrid excavator based on common pressure rail weishen, 1 jihaijiang, 1 xiaoyusu, 2 andhamidrezakarimi 3 school of mechatronics engineering, harbin institute of technology, harbin, china college of automation, harbin engineering university, harbin. This paper outlines a complex simulation model for parallel hybrid diesel railcars with hydrodynamic power transmission. During regeneration the vehicles kinetic energy that is normally lost during braking is captured and used to drive the pumpmotor as a pump. The prototype was installed in a 2003 ford expedition suv with the following results. Agrohybrid structures in general the following structures can be appropriate for functional or tractiondrives on agricultural systems self propelled machine or tractorimplementsystem. The introduction of electrohydraulic pumps is a first step in the vehicle hybridization process that will one day lead.
The basics of hybrid designs in construction equipment. Hydraulics and pneumatics projects are mostly used in the industries where there is an application of force. Recent trends hydraulic hybrid vehicles ankush menat 2. That means that, flying down the highway, a hydraulic hybrid isnt much different than a regular car. But in traffic, particularly stop and go traffic, a series hydraulic hybrid can shut its. In a hydraulic hybrid, power comes from pressurized fluid in addition to the internal combustion engine propulsion that helps in better fuel economy than the conventional system. The engine is used to generate electricity only and supply to the motor through a rectifier. Hydraulic system troubleshooting system operates slowly cold oil. A newly developed system is the series hydraulic hybrid for cars from artemis, 2. The trucks look like regular ups delivery vans, but have a series hydraulic hybrid propulsion system. They combine together to provide the required braking force. The working condition, system structure, and control strategy of the excavator were all considered. In this system the hydraulic motors are directly connected to the driving wheel axis without any gearbox. Hybrid elevators are extremely energy efficient and able to continue to operate for up to a week in the event of a power outage in the home.
The system is built as a direct drive hybrid, as shown in fig. Development of a hydromechanical hydraulic hybrid drive train. Oct 25, 2012 though the traditional energy regeneration system ers which used a hydraulic motor and a generator in hybrid excavators can regenerate part of the energy, the power of the motor and the generator should be larger and the time for regenerating energy is so short. Recent advances in mechanical engineering and mechanics. Demonstrated the ease of retrofitting trucks with hydraulic hybrid technology. Are hydraulic hybrid vehicles the future of driving. Hydraulic hybrid system is an important branch of hybrid technology, which has the advantage of high power density and the ability to accept the high rateshigh frequencies of charging and discharging, therefore hydraulic hybrid technology is well suited for offroad vehicles and heavyduty trucks. New technologies are being investigated and incorporated. A 20ton hybrid excavator is the design target, in which a compound hybrid power configuration is applied, a negative flow hydraulic system is adopted, the hydraulic swing motor is substituted by an electric motor and the super capacitor pack is used as an energy accumulator. Hybrid vs traditional hydraulic actuator systems altenergymag. Automatic electrohydraulic jack for four wheeler designer. Hydraulic hybrid and conventional parcel delivery vehicles.
A short comparison between hydraulic, mechanic and electric energy storing system is presented. Accumulators in the hybrid system hybrid technology. Hydraulic hybrid vehicles, or hhvs use a pressurized fluid power source, along with a. A swing drive system for an excavator is provided which utilizes a prime mover mechanically connected to a first hydraulic pumpmotor and a second hydraulic pumpmotor mechanically connected to a swing mechanism. Mar 14, 2017 designing a more ergonomic system to provide the hydraulic power for steering is one direction for future development by oems. The term hydrostatic refers to the transfer of energy from pressure differences, not from the kinetic energy of the flow a hydraulic drive system consists of three parts. Hydraulic hybrid vehicles california clean air technology. Hydraulic hybrid our patented hydraulic launch assist or hla hydraulic hybrid system has two main parts. Abstractthis paper presents a hydraulic hybrid vehicle drive train to improve the fuel.
In 2005, the environmental protection agency epa announced that it had partnered with ups and eaton corporation fluid power to create a number of series hydraulic hybrid powered trucks for ups. Hydraulic hybrid excavator based on common pressure rail hhec provides an alternative with electric hybrid excavator because it has high power density and environment friendly and easy to modify based on the existing manufacture process. Its a partnering process that begins with an indepth investigation into a. Machine analysis and troubleshooting designengineering support system design components selection. There are also used in proclainers, jcbs which can lift the huge amount of load by the application of pressure. Coupled with a 536hp, powertech epa interim tier 4 engine it4, the 944k hybrid wheel loader can provide significant fuel savings over 9cubicyard loaders with conventional. Increases in productivity and the reduction of brakewear are further examples of achievable benefits. The system uses the kinetic energy generated during braking to pump the fluid from the reservoir to the accumulator. The pump action transfers hydraulic fluid from a lowpressure.
Our patented electric hybrid power system uses a parallel configuration that maintains the vehicles conventional drivetrain layout and uses patented controls to blend engine torque with electric torque to move the vehicle. Energysaving analysis of hydraulic hybrid excavator based on. Kress, hydrostatic powersplitting transmission for wheeled vehicles. A parameter matching method of the parallel hydraulic. It gives a rough approximation of factors that can affect the efficiency of a hybrid system. This hydraulic hybrid demonstrated fuel savings resulting from combining a full series hydraulic hybrid system with a diesel engine. The quality they provide allows us to build reliability and performance into every design and implementation. This direct drive means that the mechanical losses are minimized. Remember, the hydraulic hybrid system gets its power through regenerative braking. Dutycycle analysis and test cycle selection and creation. This paper outlines a complex simulation model for parallelhybrid diesel railcars with hydrodynamic power transmission.
A hybrid vehicle, in addition to its main engine, has a drivetrain that can recover and reuse energy. One alternative for hybrid excavators is hydraulic hybrid excavator based on common pressure rail hhec adopting hydraulic accumulators as the storing component 2224. It took the 20ton series phhe as the example and displayed the parameter matching course of the main components. The system recovers power normally lost during braking and stores the energy. Also explore the seminar topics paper on hydraulic hybrid vehicle with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019 2020. Designing a more ergonomic system to provide the hydraulic power for steering is one direction for future development by oems. Hhvs, like all hybrid vehicles, use two sources of power to drive the wheels. Parallel and series hydraulic hybrids howstuffworks. The hydraulic hybrid system basically consists of a fluid, a pump, a reservoir, and an accumulator.
Hydraulic hybrid vehicle systems consists of four main components. Hydraulic hybrid research clean automotive technology. Optimal power management for a hydraulic hybrid delivery. Torque control strategy for a parallel hydraulic hybrid. The hydraulic hybrids help in economising on fuel consumption by recovering and reusing the kinetic energy of the vehicle during braking and deceleration, and. Pdf hydraulic hybrid propulsion for heavy vehicles.
A parameter matching method of the parallel hydraulic hybrid. Hydraulic hybrid systems consist of two key components. Hydraulic hybrids can do this much more efficiently and effectively than electrical hybrids, which use batteries for the purpose. Automatic transmission mechanical and hydraulic systems. A less than twoyear payback when produced in high volume. The system includes a hydraulic circuit connecting a hydraulic fluid reservoir, a hydraulic accumulator, the first hydraulic pumpmotor, and the second hydraulic pumpmotor. Maintaining your hydraulic system is the key to ensuring it lasts you a long time and ends up being a costeffective means of accomplishing the tasks of your home or business. At first, the structure of new ers that combines the advantages of an electric and hydraulic accumulator is analyzed. Mathematical modelling of a hydraulic accumulator for. Since the hydraulic oil is the most important part your system, our focus will be on maintaining your hydraulic fluid. Home decorating style 2020 for hybrid capp system pdf, you can see hybrid capp system pdf and more pictures for home interior designing 2020 89577 at manuals library.
Efficiency increasing system in automobile by using preheating method 15. Hybrid vehicles use two sources of power to drive the wheels. Design and analysis of hydraulic hybrid passenger vehicles. Sms based automatic vehicle accident information system 12. Hybrid elevators run on the patent pending hybrid drive system. A different kind of transmission, one that can recover, store and reuse power hydraulically rather than electrically an energy storage system. Explore hydraulic hybrid vehicle with free download of seminar report and ppt in pdf and doc format. But in traffic, particularly stop and go traffic, a series hydraulic hybrid can shut its engine off and use hydraulic power alone. It not only eliminates the theoretical metering loss but can also recover energy. That definition makes hybrids of decadesold hydrostatic and dieselelectric drive systemssince they juxtapose mechanical with. This ford f550 parallel hydraulic hybrid vehicle was built to demonstrate the benefits of parallel hydraulic hybrids and to examine the costeffectiveness of parallel systems with the following results.
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