In parallel with the ngattb project, the houston metropolitan transit authority hmta. Transit, tested a diesel electric hybrid bus for 18 months in a variety of driving conditions. New york city transit nyct, part of the metropolitan transportation authority in new york, began operating the first of 10 heavyduty diesel hybridelectric transit bus prototypes model vi from orion bus industries in 1998. This converter has to be capable of handling the energy transfer from the 12v dc bus and the high voltage dc bus used for the electric traction. The measurements protocol used for the screening tests follows general pr ocedures in sae j 28891 with several differences including the acoustic environment, operating conditions, test surface, number of microphones, and microphone position. High voltage equipment in transit buses electric drive transit buses will likely have the r e s s installed on the roof, under a. Welcome to the inspecting high voltage electric drive commercial motor vehicles course. Trbs transit cooperative research program tcrp report 2. Assessment of hybridelectric transit bus technology explores decisionmaking guidelines coupled with a comprehensive life cycle cost lcc model designed to assist transit managers in evaluating, selecting, and implementing hybridelectric technology options for transit buses. Electric bus motors aircraft systems power electronics battery electric bus motors aircraft systems power electronics more electric hybrid full hybrid all electric three potential system architectures are shown with a progression from the more electric hybrid to full hybrid to all electric. Batteryelectric bus pilot overview procure nine 40ft batteryelectric buses three each from three different manufacturers to determine the current state of battery electric technology use vehicles in regular revenue service on sfmtas most demanding routes install charging infrastructure at the woods maintenance yard. Pittsfield electric bus program project to fund development effort to fabricate a prototype 30foot, composite, lowfloor, all electric transit bus with rapid recharge electric vehicles world wide evww plans to establish an electric bus manufacturing facility at a former ge manufacturing plant in pittsfield to manufacture vehicle. Assessment of hybridelectric transit bus technology.
Minimum sound requirements for hybrid and electric. Massachusetts bay transportation authority mbta bus. These type of buses normally use a dieselelectric powertrain and are also known as hybrid dieselelectric buses the introduction of hybrid electric vehicles and other green vehicles for purposes of public transport forms a part of sustainable. As a government, we want to embrace the growing availability of alternative transport such as electric and hybrid vehicles. Transit bus limitation of battery electric mdhd trucks us hybrid. Commerciallyavailable hybrid electric buses hebs, electric buses ebs, and fuelcell buses fcbs provide 3050 percent better fuel eficiency in city operation over their diesel counterparts, albeit at higher initial cost by factors of 23, but promising. Nrel is collecting data on a fleet of 10 new flyer compressed natural gas cng buses as baseline comparison. Aviva brecher energy analysis and sustainability division energy and environmental systems technical center volpe national transportation research center.
In order to help rtc reach its goal, the 7,000th system was delivered to manufacturer nova bus. San francisco operates the largest electric trolley bus fleet in the u. Nyct recently ordered an additional 200 diesel hybridelectric buses for delivery in 2003. Also, hybrid and electric bus manufacturing is a more oligopolistic market so unless there are more players coming up the cost economics just dont seem in favour of an. A prototype advanced technology transit bus attb was developed by northrop grumman ng under funding from the federal transit authority fta to demonstrate advanced hybrid electric transit bus technology. However, the transformation process from diesel to electric bus systems opens up a vast design space which seems prohibitive for a systematic decision making process. Tp 1800 dcdc converter for hybrid electric vehicle and ev vc. Plugin hybrid electric vehicle phev plugin hybrid electric bus fuel cell electric vehicle fcev consists of a fuelburning prime power source. The hybrid buses are intended to provide nyct with. Many public transport authorities have a great interest in introducing zeroemission electric buses. The vehicle under study is an o457 city transit bus which is hybridized to a series hybrid electric bus in vehicle, fuel, and environment research institute, university of tehran. Performance data of hybrid and electric buses has been reported in numerous documents. High voltage equipment in hybrid motorcoaches electric drive coach buses may have high voltage equipment installed inside the luggage bays below the passenger compartment. The challenge with hybrid and the electric bus is the high upfront cost which makes it unviable for prospective operators when we consider depreciation and total ownership cost.
New york city transit nyct, part of the metropolitan transportation authority in new york, began operating the first of 10 heavyduty diesel hybrid electric transit bus prototypes model vi from orion bus industries in 1998. Volvo, man, and daimler will feature as nonchinese members of the top 10 hybrid. If it exists, would you mind sending me the data on the map. A widespread change to hybrids requires an extended period of time and also may not be cost effective. Investment incentives are often nonreimbursable resources given by one party often a public entity to make an investment more attractive to another party. Just like cars, they use either parallel or series hybrid systems to assist the diesel engines in these buses. These puget sound transit agencies evaluated the test bus on its operating system, fuel consumption, operational. This discussion focuses on aspects of the technologies, and their potential market share, operational performance, and environmental performance. A charlottebased manufacturer of hybrid and electric buses has filed for bankruptcy protection following several weeks of furloughs. To develop such braking system, a hybrid series electric bus is considered in this research. The report shows realworld fuel savings, emissions and economics of electric and hybrid buses especially in the context of developing countries. This module provides an introduction to the course. European vehicle market statistics 201718 1 introduction the 201718 edition of european vehicle market statistics offers a statistical portrait of passenger car, light commercial and heavyduty vehicle fleets in. The chicago transit authoritys cta rollout of two electric buses in 2014 was one of the first major tests of electric bus technology in a cold winter climate.
Minimum sound requirements for hybrid and electric vehicles. Massachusetts bay transportation authority mbta bus cost analysis total cost of ownership despite their greater purchase price, current analysis using argonne national laboratorys afleet model demonstrates that zero emission electric buses have a total cost of ownership that is 15% lower than new diesel buses. King county metro battery electric bus us department of. Proposed electric vehicle roadmap for san francisco. Hybridelectric vehicle model in simulink file exchange.
Taxis and bus fleets were modernized with fuel efficient hybrid electric vehicles. Global electric bus and hybrid bus market 2020 industry. Acoustic data for hybrid and electric heavyduty vehicles. The challenges and benefits of the electrification of aircraft. Batteryelectric drive is also characterized by zero pointofsource i. Table 1 provides selected specifications for each bus type. The purpose of this email is to ask some questions about hybridelectric vehicle model in simulink 2016a that you developed. Design of urban electric bus systems design science. San franciscos hybrid bus system, first unveiled in april 2007, uses a series hybrid system where the engine turns a generator that produces electricity to. Does the engine efficiency map exist in model 2016a.
Effect of different regenerative braking strategies on. Nsws electric and hybrid vehicle plan reflects our growing focus on future mobility and technology innovations which will modernise transport for the community and businesses across new south wales. It provides a brief description of electric drive vehicles, such as hybrid electric vehicles, plug in hybrid electric vehicles. The hesb is a program organized by advanced energy and designed to bring. Gfo17607 cost effectiveness model battery electric. Technology overview a hybridelectric bus is powered by an electric motor, and a smaller than normal conventional internal combustion engine. The vehicles have performed well, have had no difficulty. Buses in all four fleets are 40foot, model year 2015 buses. A road map for fuel cell electric buses in california. Electric and hybrid electric bus acquisitions typically involve some form of investment incentive to reduce the upfront cost. Natural gas hybridization ngvtf gas technology institute ted barnes 2 gti company overview. Some cities have even abandoned their electric aspirations and returned to the fossilfuel status quo. In this article, after describing the concept of three main.
Technology overview a hybrid electric bus is powered by an electric motor, and a smaller than normal conventional internal combustion engine. However information is either based on data provided by bus producers or on sample measurements made. Orion diesel hybridelectric buses model vii will arrive at mother clara hale and queens village depots. The diesel fuel supply of transit buses, municipal trucks, and ferries was switched to 100%. Hybrid electric islg at the same cost as isx15g with double the rangefuel economy. Integrated between the electric machines, batteries, and power electronics integrated between the cooling system and the other systems compatible with the available incoming air and heat exhaust mechanisms this program will develop and integrate these techniques for both 200 kw and 1 mw electric propulsion engines. The propulsion control system manages the flow of electricity. Comparison of modern cng, diesel and diesel hybrid. Hybrid electric transit bus university of texas at austin. The objective of the report and the hybrid and eus tool is to compare hybrid and electric buses with that of conventional fossil fuel units.