Hybrid electric vehicles provides an introduction to hybrid vehicles, which include purely electric, hybrid electric, hybrid hydraulic, fuel cell vehicles, plugin hybrid electric, and offroad hybrid vehicular systems. Another promising dimension is the development of mildhybrid systems, which will likely provide onehalf to twothirds the fuelefficiency benefits of fullfunction hybrids at less than half the cost. Because the energy in a hydraulic hybrid doesnt pass through an electric motor, it recovers more energy lost during braking. A dieselturbine engine drives an electric generator or hydraulic pump, which powers electric hydraulic motors strictly an electric hydraulic transmission not a hybrid, unless it can accept power from outside. This research project compares laboratorymeasured fuel economy of a mediumduty diesel powered hydraulic hybrid. This video explains the benefits of hydraulic hybrid vehicle or hhv technology. A dieselturbine engine drives an electric generator or hydraulic pump, which powers electrichydraulic motors strictly an electrichydraulic transmission not a hybrid, unless it can accept power from outside. The hydraulichybrid line provides very high power density. Like all hydraulic hybrid systems, the companys technology uses a socalled gas spring to send power to the trucks driveshaft, thereby boosting acceleration efficiency and braking capability. The objective of the technique is data reduction and identification of the hidden structure behind an observed data set.
Engineers aim to take hydraulic hybrid powertrains beyond niche status in medium and heavyduty trucks and buses. Explore hybrid car with free download of seminar report and ppt in pdf and doc format. Hybrid electrical vehicles introduction a hybrid electric vehicle hev has two types of energy storage units, electricity and fuel. Lammert, jonathan burton, petr sindler, and adam duran. How series hydraulic hybrid vehicles work clean automotive. A hybrid vehicle has multiple forms of motive power.
The hydraulic retarder hydraulic retarders use the viscous drag forces between dynamic and static vanes in a fluidfilled chamber to achieve retardation. Also explore the seminar topics paper on hybrid car 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. In epa tests a hydraulic hybrid ford expedition returned 32 mpg. Hhvs, like all hybrid vehicles, use two sources of power to drive the wheels. Peapod, an online grocer, took delivery of its first two fuel efficient, hydraulic hybrid delivery trucks this month.
Traditional electric hybrid vehicles combine internal combustion engine power plants with electric motorsgenerators to propel the vehicle or capture its braking energy. Electric hybrid vehicles have been the first hybrid technology to be mass produced for the commercial passenger car market. Pdf hydraulic hybrid vehicle configurations and comparison with. This paper introduces the electro hydraulic hybrid actuator system specially developed for compact assembly. This paper presents a hydraulic hybrid vehicle drive train to improve the fuel efficiency of a passenger car. Most heavy commercial vehicles, however, still utilize the hydraulic power steering hps system for which the hydraulic pump is directly connected to the engine crankshaft by a belt or a gear. As the population of the world grows, so do the number of vehicles on the road.
Previous terms have baselined the xebra, and integrated a hydraulic slowfill pump and hydraulic motor to propel the xebra. Design optimization of a hydraulic flywheel accumulator. Lubricant consumption for ice vehicles, hybridplugin hybrid, and battery electric vehicles. A motor vehicle, truck, or trailer must be titled and registered in colorado to qualify for the credit. Hybrid hydraulic drives kd solutions kinetics drive. A gas electric hybrid recovers 30 percent of braking energy, while a hydraulic hybrid can recover 70 percent, contributing to better efficiency source. Engineering hydraulic hybrid vehicles using stop to power go a global cleantech opportunity an alternative to electric hybrid vehicles, hydraulic hybrids transfer kinetic energy generated during braking to an accumulator of pressurized fluid, which then provides energy when the vehicle accelerates. Series hybrid in a series hydraulic hybrid, the engine is directly connected to the hydraulic pump with no direct connection to the wheels. For example, a hybrid may receive its energy by burning petroleum, but switch between an electric motor and a combustion engine. Hydraulic hybrid systems can capture up to 70% of the kinetic energy that would otherwise be lost during braking. Electrichydraulic hybrid drivetrain for city vehicles.
Parallel v series in a parallel hydraulic hybrid, the engine still has a mechanical connection through the pump to the drive wheels. Electronics help cut costs of hydraulic hybrid trucks. Pdf n this paper three basic configurations of hydraulic hybrid vehicle are explained. In a parallel hydraulic hybrid vehicle hhv, the engine still provides power to the wheels through a standard transmission. Another hybrid option has been put forth and tested by a number of businesses, as well as the environmental protection agency epa. Optimal design of a powersplit transmissions for hydraulic. Ups operates one of the largest private alternative fuel and advanced technology fleets in the u. There are four main modes of operation in a parallel hhv. Hydraulic hybrid vehicle configurations and comparison. 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.
A simple retarder uses vanes attached to a transmission. Technical challenges with hydraulic hybrid vehicles include noise, size, and complexity. Matrix data analysis is a very effective technique to help you to discover the structure of large data sets. Pdf model of a hydraulic hybrid vehicle with regenerative. Credits for electric and plugin hybrid electric vehicles colorado allows innovative motor vehicle and innovative truck credits for the purchase, lease, or conversion of motor vehicles, trucks, and trailers that use certain alternative fuels. The hydraulic hybrid line provides very high power density. Development of a hydromechanical hydraulic hybrid drive train. Explore hydraulic hybrid vehicle with free download of seminar report and ppt in pdf and doc format. A hybrid drivetrain with a hydraulic continuously variable transmission cvt is modeled to include efficiency information of the engine and hydraulic components. In a parallel hydraulic hybrid there is a conventional engine and drive train system with hydraulic hybrid technology attached to the drive shaft to learn more visit how parallel hhvs works. There are several different types which can use standard transmission fluid gear oil, aseparate oil supply, or water. Hydraulic hybrid and conventional parcel delivery vehicles measured laboratory fuel economy on targeted drive cycles.
The technology uses hydraulic hardware to augment the conventional powertrain engine and. Technology development and cost reduction better, lowercost hybrid subsystems. This ford f550 parallel hydraulic hybrid vehicle was built to demonstrate the. Powersplit or hydromechanical transmissions hmt have advantages over series and parallel architectures. All bulky hydraulic components were integrated into the chassis. Design and analysis of hydraulic hybrid passenger vehicles. The basic models of hydraulic hybrid vehicles are shown and explained. Hydraulic hybrid vehicles are the future vehicle as it is more better and efficient than the traditional cars as hydraulics systems can recover about 75% of the kinetic energy during braking and deceleration, as compared to the 25% recovery from electric hybrids and its proven to be more costeffective than electric hybrid systems.
How series hydraulic hybrid vehicles work in a regular vehicle, power is provided to the wheels by the engine through the transmission and drive shaft. Hydraulic hybrid vehicles a hybrid vehicle is a vehicle that uses more than one source of power for functioning or movement. Introduction to how hydraulic hybrids work howstuffworks. It focuses on the power and propulsion systems for these vehicles, including issues related to power and energy management. An overview of literature for parallel, series and powersplit.
How parallel hydraulic hybrid vehicles work in a parallel hydraulic hybrid vehicle hhv, the engine still provides power to the wheels through a standard transmission. Abstract hydraulic hybrid vehicles are inherently power dense. Hydraulic hybrid and conventional parcel delivery vehicles. Are hydraulic hybrid vehicles the future of driving.
Electricity means that a battery sometimes assisted by ultracaps is used to store the energy, and that an electromotor from now on called motor will be used as traction motor. Hydraulic powersplit architecture is chosen in this study for its flexibility in operation and combined advantage of series and parallel architecture. Both the transmission and system capture more than 71% of a vehicles otherwise lost braking energy to increase brake durability up to eight times. In a hydraulic hybrid, pressurized fluid is used as secondary source of power. Hybrid vehicles reduce their fuel consumption by capturing energy normally lost during braking and reusing it during acceleration in addition to managing the engine to enable it to run at a higher efficiency operating point. Types of industrial lubricants hydraulic fluids corrosion preventives gear oils soluble cutting oils neat cutting oils forming oils quenching oils compressor oils honing oils. Upss fleet of iconic brown delivery vans is getting a little bit greener with the addition of some new hybrid trucks. Sep 15, 2017 hybrid electric vehicles provides an introduction to hybrid vehicles, which include purely electric, hybrid electric, hybrid hydraulic, fuel cell vehicles, plugin hybrid electric, and offroad hybrid vehicular systems. Another promising dimension is the development of mild hybrid systems, which will likely provide onehalf to twothirds the fuelefficiency benefits of fullfunction hybrids at less than half the cost. In this paper, an approach for optimizing the conguration and sizing of a hydraulic hybrid powersplit transmission is proposed. Hybrid vehicles provide a solution to this demand, and hydraulic hybrid vehicles are shown to have a cheaper cost of ownership compared to electric hybrid vehicles. The vehicles, existing workhorse walkin vans with gm gasoline engines and equipped with the lightning hybrids energy recovery system ers, are in service on the streets of chicago and were partially paid for by the drive clean.
Hybrid powertrains have the potential to benefit the fuel efficiency of highway and offhighway vehicles. Once relegated to the sidelines due to bulky components and complicated controls, these systems are benefiting from. Ups alternative fuel and advanced technology vehicles. 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. Electric hydraulic hybrid drivetrain for city vehicles. Apr 17, 2020 explore hybrid car with free download of seminar report and ppt in pdf and doc format. Seminar on hybrid cars hybrid electric vehicles hev full report pdf download abstract have you pulled your car up to the gas pump lately and been shocked by the high price of gasoline. There has been plenty of research done for manual transmissions vehicles.
The epa estimates that co2 emissions from hydraulic hybrid ups trucks are 40 percent lower than conventional ups trucks, and a fleet of trucks could save 1,000 gallons of fuel a year. Design and construction of a hydrostatic dynamometer for. A brief overview of the most recently published papers in this area. This steering system has been proved as effective, inexpensive, and. Most electric vehicles waste over 50% of the battery energy when challenged with the accelerations of modern traffic. A gaselectric hybrid recovers 30 percent of braking energy, while a hydraulic hybrid can recover 70 percent, contributing to better efficiency source. Apr 27, 2014 parallel v series in a parallel hydraulic hybrid, the engine still has a mechanical connection through the pump to the drive wheels. Seminar on hybrid cars hybrid electric vehicles hev full. Hybrid power trains use dieselelectric or turboelectric to power railway locomotives, buses, heavy goods vehicles, mobile hydraulic machinery, and ships. Obrien said, we are not aware of anything else like it. Within five years, company executives want to outfit 10,000 vehicles per year.
Jim obrien, of hybriddrive systems, in deerfield michigan, converted a 1968 volkswagen beetle into a hydraulic hybrid. Optimized production vehicles are expected to have larger nox reductions. This includes allelectric, hybrid electric, hydraulic hybrid, ethanol, compressed natural gas cng, liquefied natural gas lng, propane, renewable natural gas rngbiomethane, and lightweight fuelsaving composite body vehicles. Two auxiliary power sources have been found most practical. Hybrid vs ev vs more efficient ice over next decade lubricants demand by 2030 will undergo change due to ice to ev transition of 15%best case to 25%worst case of total vehicle parc. Technical advances, such as very large diameter, flat format ldff hydraulic motors which produce very high torque in limited drive line space, enable heavy vehicles like refuse trucks and city buses to be fitted with hydraulic hybrid systems. Energy efficiency comparison between hydraulic hybrid. Design optimization of a hydraulic flywheel accumulator for a. Proposed actuator design allows the replacement of long flexible pipe lines and associated hydraulic losses by electrical cables and enables.
Hydraulic hybrid vehicles california clean air technology. A hydrostatic dynamometer has been constructed to test a hydraulic hybrid passenger vehicle. Abstracthydraulic hybrid vehicles are inherently power dense. Vehicles adopting this new technology have experienced up to a 50% reduction in fuel consumption on a typical route with ancillary benefits including significantly reduced carbon emissions, less brake wear and ease of. 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. Abstractthis paper presents a hydraulic hybrid vehicle drive train to improve the fuel efficiency of a passenger car. Page 11 the hydraulic hybrid system is broken down into two main parts. 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 the vehicle while its at slow speeds. In some of these cars, fluid hydraulic technology is used as an additional source of power along with diesel or gas these are referred to as hydraulic hybrid vehicles. Seminar on hybrid cars hybrid electric vehicles hev. Hybrid vehicles reduce their fuel consumption by capturing energy normally lost during braking and reusing it during acceleration in addition to managing the engine to enable it. Pdf utilisation of electrohydraulic hybrid actuator.
Recent trends hydraulic hybrid vehicles ankush menat 2. Optimal design of powersplit transmissions for hydraulic. Hydraulic hybrid fleet vehicle testing transportation. Vehicles adopting this new technology have experienced up to a 50% reduction in fuel consumption on a typical route with ancillary benefits including significantly reduced carbon emissions, less brake wear and ease of driving compared with other hybrid systems. This energy drives a pump, which transfers hydraulic fluid from a lowpressure reservoir to a highpressure accumulator. Seminar on hybrid vehicles pdf download faadooengineers. Industrial lubricants in the new world of electric vehicles. During regeneration the vehicles kinetic energy that is normally lost during braking is captured and used to drive the pumpmotor as a pump. Hybrid vehicle drive trains transmit power to the driving wheels for hybrid vehicles.
Hydraulic hybrid vehicle seminar report, ppt, pdf for. The pressure is on as ups adds more hydraulic hybrids wired. Hybrid synergy drive mechanism the original prius used shrinkwrapped 1. If you need captions, please click the cc button on the player to turn them on. Hybrid car seminar report, ppt, pdf for mechanical. Here is an article explaining the efficiency limits of airpowered cars. Pdf this paper explains the basic principles of hydraulic hybrid vehicles. The latest developments in the field of hybrid electric vehicles. Hydraulic hybrid vehicle configurations and comparison with hybrid electric vehicle conference paper pdf available june 2018 with 1,272 reads how we measure reads. The hydraulic components are attached to the driveshaft and assist in stopping and accelerating the vehicle. Parker has a new mediumduty hydraulic transmission using the same proven, costsaving technology as the runwise advanced series hydraulic hybrid drive system, but in a smaller, lighter package. Thermodynamic analysis of compressed air vehicle propulsion the figures are most relevant to simple aironly designs nonhybrid with ambient reheating. The toyota hybrid system relies on the voltage of the battery packbetween 276 and 288 v. One research companys goal was to create a fresh design to improve the packaging of gasolinehydraulic hybrid components.
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