Hybrid Buses
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Alternative Fuels in Public Transit: a Match Made on the Road
U.S. DEPARTMENT of ENERGY, March 2002 OFFICE of ENERGY EFFICIENCY and RENEWABLE ENERGY Alternative Fuels in Public Transit: A Match Made on the Road As alternative fuels compete with conventional fuels for Transit agencies across the nation operate approximately a place in public awareness and acceptance, one of their 75,000 buses. As shown in the table, transit buses con- most visible applications is in public transportation. sume more fuel per vehicle annually than some other Vehicles, particularly buses and shuttles, that carry niche market vehicles on average, although the fuel use people in large numbers, stand to gain much from using of individual buses varies widely. (Source: Charting the alternative fuels. Such high-demand fuel users can help Course for AFV Market Development and Sustainable sustain a fueling infrastructure that supports private Clean Cities Coalitions, Clean Cities, March 2001; see autos and other smaller vehicles. www.ccities.doe.gov/pdfs/ccstrategic.pdf.) Buses are the most visible Public transit operations are well suited to alternative Percentage of Vehicles fuel use. Transit vehicles often travel on contained transit vehicles and in Transit Fleets by Type routes with centralized fueling, they are serviced by account for 58% of the a team of technicians who can be trained consistently, transit vehicle miles trav- and they are part of fleets that travel many miles, so eled, but transit agencies economies of scale can be favorable. Transit agencies operate a variety of other also typically operate in urban areas that may have air vehicles that can also use quality concerns. Alternative fuel transit vehicles offer alternative fuels. -
A-1 Electric Bus & Fleet Transition Planning
A Proterra model battery electric powered bus (photo credit: Proterra, May 2021). 52 | page A-1 Electric Bus & Fleet Transition Planning Initiative: Assess the feasibility of transitioning Pace’s fleet toward battery electric and additional CNG technologies, as well as develop a transition plan for operations and facilities. Study other emerging technologies that can improve Pace’s environmental impact. Supports Goals: Responsiveness, Safety, Adaptability, Collaboration, Environmental Stewardship, Fiscal Solvency, and Integrity ACTION ITEM 1 Investigate and Plan for Battery Electric Bus (BEB) Pace is committed to the goals of environmental stewardship and economic sustainability, and recognizes how interest to electrify vehicles across private industry and US federal, state, and local governments has been intensifying throughout 2020-2021. Looking ahead, the agency will holistically evaluate a transition path to converting its fleet to battery electric buses (BEB). As a first step, Action Item 2 of the A-2 Capital Improvement Projects initiative describes Pace’s forthcoming Facilities Plan. This effort will include an investigation of the prerequisites that BEB technology requires to successfully operate. Once established, Pace will further plan what next steps and actions to take in pursuit of this vehicle propulsion system. A Union of Concerned Scientists 2017 study3 indicates that BEB’s have 70 percent lower global warming emissions than CNG or diesel hybrid buses even when considering the lifecycle emissions required to generate the necessary electricity. Similarly, a 2018 US PIRG Education Fund Study4 indicates that implementing BEB’s lower operational costs yields fuel and maintenance savings over a vehicle’s life cycle. Pace praises the efforts of many other transit agencies across the nation and world who are investing heavily in transitioning their fleets to BEB and other green, renewable, and environmentally-cognizant sources of vehicle propulsion. -
Hybrid Electric Vehicles: a Review of Existing Configurations and Thermodynamic Cycles
Review Hybrid Electric Vehicles: A Review of Existing Configurations and Thermodynamic Cycles Rogelio León , Christian Montaleza , José Luis Maldonado , Marcos Tostado-Véliz * and Francisco Jurado Department of Electrical Engineering, University of Jaén, EPS Linares, 23700 Jaén, Spain; [email protected] (R.L.); [email protected] (C.M.); [email protected] (J.L.M.); [email protected] (F.J.) * Correspondence: [email protected]; Tel.: +34-953-648580 Abstract: The mobility industry has experienced a fast evolution towards electric-based transport in recent years. Recently, hybrid electric vehicles, which combine electric and conventional combustion systems, have become the most popular alternative by far. This is due to longer autonomy and more extended refueling networks in comparison with the recharging points system, which is still quite limited in some countries. This paper aims to conduct a literature review on thermodynamic models of heat engines used in hybrid electric vehicles and their respective configurations for series, parallel and mixed powertrain. It will discuss the most important models of thermal energy in combustion engines such as the Otto, Atkinson and Miller cycles which are widely used in commercial hybrid electric vehicle models. In short, this work aims at serving as an illustrative but descriptive document, which may be valuable for multiple research and academic purposes. Keywords: hybrid electric vehicle; ignition engines; thermodynamic models; autonomy; hybrid configuration series-parallel-mixed; hybridization; micro-hybrid; mild-hybrid; full-hybrid Citation: León, R.; Montaleza, C.; Maldonado, J.L.; Tostado-Véliz, M.; Jurado, F. Hybrid Electric Vehicles: A Review of Existing Configurations 1. Introduction and Thermodynamic Cycles. -
The Route to Cleaner Buses a Guide to Operating Cleaner, Low Carbon Buses Preface
The Route to Cleaner Buses A guide to operating cleaner, low carbon buses Preface Over recent years, concerns have grown over the contribution TransportEnergy is funded by the Department for Transport of emissions from road vehicles to local air quality problems and the Scottish executive to reduce the impact of road and to increasing greenhouse gas emissions that contribute to transport through the following sustainable transport climate change. One result of this is a wider interest in cleaner programmes: PowerShift, CleanUp, BestPractice and the vehicle fuels and technologies.The Cleaner Bus Working New Vehicle Technology Fund.These programmes provide Group was formed by the Clear Zones initiative and the advice, information and grant funding to help organisations Energy Saving Trust TransportEnergy programme. Its overall in both the public and private sector switch to cleaner, aim is to help stimulate the market for clean bus technologies more efficient fleets. and products. Comprising representatives of the private and CATCH is a collaborative demonstration project co- public sectors, it has brought together users and suppliers in financed by the European Commission's an effort to gain a better understanding of the needs and LIFE-ENVIRONMENT Programme. CATCH is co-ordinated requirements of each party and to identify, and help overcome, by Merseytravel, with Liverpool City Council,Transport & the legal and procurement barriers. Travel Research Ltd,ARRIVA North West & Wales Ltd, This guide is one output from the Cleaner Bus Working -
Financial Analysis of Battery Electric Transit Buses (PDF)
Financial Analysis of Battery Electric Transit Buses Caley Johnson, Erin Nobler, Leslie Eudy, and Matthew Jeffers National Renewable Energy Laboratory NREL is a national laboratory of the U.S. Department of Energy Technical Report Office of Energy Efficiency & Renewable Energy NREL/TP-5400-74832 Operated by the Alliance for Sustainable Energy, LLC June 2020 This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications. Contract No. DE-AC36-08GO28308 Financial Analysis of Battery Electric Transit Buses Caley Johnson, Erin Nobler, Leslie Eudy, and Matthew Jeffers National Renewable Energy Laboratory Suggested Citation Johnson, Caley, Erin Nobler, Leslie Eudy, and Matthew Jeffers. 2020. Financial Analysis of Battery Electric Transit Buses. Golden, CO: National Renewable Energy Laboratory. NREL/TP-5400-74832. https://www.nrel.gov/docs/fy20osti/74832.pdf NREL is a national laboratory of the U.S. Department of Energy Technical Report Office of Energy Efficiency & Renewable Energy NREL/TP-5400-74832 Operated by the Alliance for Sustainable Energy, LLC June 2020 This report is available at no cost from the National Renewable Energy National Renewable Energy Laboratory Laboratory (NREL) at www.nrel.gov/publications. 15013 Denver West Parkway Golden, CO 80401 Contract No. DE-AC36-08GO28308 303-275-3000 • www.nrel.gov NOTICE This work was authored by the National Renewable Energy Laboratory, operated by Alliance for Sustainable Energy, LLC, for the U.S. Department of Energy (DOE) under Contract No. DE-AC36-08GO28308. Funding provided by the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Vehicle Technologies Office. -
ICOM North American LLC Comments
DOCKETED Docket 16-ALT-02 Number: Project Title: 2017-2018 Investment Plan Update for the Alternative and Renewable Fuel and Vehicle Technology Program TN #: 214418 Document Title: ICOM North American LLC Comments: alt-fuel near zero engines and alt- fuel hybrids Description: N/A Filer: System Organization: ICOM North American LLC Submitter Role: Public Submission 11/7/2016 4:47:41 PM Date: Docketed Date: 11/7/2016 Comment Received From: jon vanbogart Submitted On: 11/7/2016 Docket Number: 16-ALT-02 alt-fuel near zero engines and alt-fuel hybrids Additional submitted attachment is included below. November 7, 2016 California Energy Commission 1516 Ninth Street Sacramento, CA 95814 Re: Comments on the 2017-2018 Investment Plan Update for the Alternative and Renewable Fuel and Vehicle Technology Program Dear California Energy Commissioners and Staff, ICOM North America LLC values the opportunity to provide comments on the 2017-2018 Investment Plan Update for the Alternative and Renewable Fuel and Vehicle Technology Program (ARFVTP). While we support the Energy Commission goals and investment in advanced transportation technologies to advance petroleum reduction goals and reduce emission for the State’s climate change initiatives. Near Zero – Lower NOx Engines and Alternative Fuel Hybrid Technology ICOM has provided sustainable fleets solutions for Propane-Autogas since 2004 with over 150 EPA certification covering more than 1000 vehicle platforms. As part of our 2017 strategy and beyond, ICOM will be offering CARB Certified Near Zero - Lower NOx engine technology for both Propane-AutoGas and CNG at or near the 0.02 NOx level for vehicle platforms above 14001 GVWR for both the Ford 6.8L and GM 6.0L engines. -
The Hybrid Vehicle and Alternative Fuel Report September 30, 2016
ISSN 1946-1011 The Hybrid Vehicle and Alternative Fuel Report September 30, 2016 The fine print: This report is a summary of articles appearing in popular, business, and technical media referring to the impact of fuel costs and fuel efficiency on vehicle technology, development, and markets. At the end of the report is a list of all articles summarized, with hyperlinks to internet sources where available. Some articles may require free registration or paid subscriptions to access. The Hybrid Vehicle and Alternative Fuel Report (ISSN: 1946-1011) is compiled, written, and edited by Thomas L. R. Smith, Ph. D. (hereinafter referred to as “The Editor”), Economic Analysis Branch of the Budget and Financial Analysis Division, Washington State Department of Transportation. Contact The Hybrid Vehicle and Alternative Fuel Report’s editor at [email protected] or (360) 705-7941. Contributions of news items, original articles, cookies, and positive comments about The Report are welcome. TABLE OF CONTENTS HYBRIDS .......................................................................................................................................................................... 1 ELECTRIC VEHICLES ...................................................................................................................................................... 1 ALTERNATIVE FUELS ..................................................................................................................................................... 4 COMING TO A LOCATION NEAR YOU -
EPRI Journal--Driving the Solution: the Plug-In Hybrid Vehicle
DRIVING THE SOLUTION THE PLUG-IN HYBRID VEHICLE by Lucy Sanna The Story in Brief As automakers gear up to satisfy a growing market for fuel-efficient hybrid electric vehicles, the next- generation hybrid is already cruis- ing city streets, and it can literally run on empty. The plug-in hybrid charges directly from the electricity grid, but unlike its electric vehicle brethren, it sports a liquid fuel tank for unlimited driving range. The technology is here, the electricity infrastructure is in place, and the plug-in hybrid offers a key to replacing foreign oil with domestic resources for energy indepen- dence, reduced CO2 emissions, and lower fuel costs. DRIVING THE SOLUTION THE PLUG-IN HYBRID VEHICLE by Lucy Sanna n November 2005, the first few proto vide a variety of battery options tailored 2004, more than half of which came from Itype plugin hybrid electric vehicles to specific applications—vehicles that can imports. (PHEVs) will roll onto the streets of New run 20, 30, or even more electric miles.” With growing global demand, particu York City, Kansas City, and Los Angeles Until recently, however, even those larly from China and India, the price of a to demonstrate plugin hybrid technology automakers engaged in conventional barrel of oil is climbing at an unprece in varied environments. Like hybrid vehi hybrid technology have been reluctant to dented rate. The added cost and vulnera cles on the market today, the plugin embrace the PHEV, despite growing rec bility of relying on a strategic energy hybrid uses battery power to supplement ognition of the vehicle’s potential. -
A Review of Range Extenders in Battery Electric Vehicles: Current Progress and Future Perspectives
Review A Review of Range Extenders in Battery Electric Vehicles: Current Progress and Future Perspectives Manh-Kien Tran 1,* , Asad Bhatti 2, Reid Vrolyk 1, Derek Wong 1 , Satyam Panchal 2 , Michael Fowler 1 and Roydon Fraser 2 1 Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L3G1, Canada; [email protected] (R.V.); [email protected] (D.W.); [email protected] (M.F.) 2 Department of Mechanical and Mechatronics Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L3G1, Canada; [email protected] (A.B.); [email protected] (S.P.); [email protected] (R.F.) * Correspondence: [email protected]; Tel.: +1-519-880-6108 Abstract: Emissions from the transportation sector are significant contributors to climate change and health problems because of the common use of gasoline vehicles. Countries in the world are attempting to transition away from gasoline vehicles and to electric vehicles (EVs), in order to reduce emissions. However, there are several practical limitations with EVs, one of which is the “range anxiety” issue, due to the lack of charging infrastructure, the high cost of long-ranged EVs, and the limited range of affordable EVs. One potential solution to the range anxiety problem is the use of range extenders, to extend the driving range of EVs while optimizing the costs and performance of the vehicles. This paper provides a comprehensive review of different types of EV range extending technologies, including internal combustion engines, free-piston linear generators, fuel cells, micro Citation: Tran, M.-K.; Bhatti, A.; gas turbines, and zinc-air batteries, outlining their definitions, working mechanisms, and some recent Vrolyk, R.; Wong, D.; Panchal, S.; Fowler, M.; Fraser, R. -
Agenda Item 4A – Discussion of the Hybrid Electric Bus and the 1:6 Ramp
Agenda Item 4A – Discussion of the hybrid electric bus and the 1:6 ramp demonstration Bus improvements provided at the request of the Accessibility Advisory Committee: • The rear door operation was modified from a “push-open spring close” to an air operated system to provide easier passenger operation. • A new smaller pedestal for the farebox was provided to increase the turning radius at the front entrance door. • Installed a less steep 6:1 ratio wheelchair ramp from the 4:1 ratio. • Installed individual slim flip seats in the wheelchair securement area to provide increased aisle width. • The locking feature of the flip seats when in the down position was removed to improve operation. • Moved modesty panels outward to increase aisle width in these areas. • Added additional aisle facing flip seats to increase aisle width and provide additional areas for shopping carts and strollers. • Increased the amount of contrasting yellow material at interior rear steps. • Provided additional stanchions and hand-holds at interior rear step area. • Requested that the District receive the lowest kneeling level possible on new buses. Agenda Item 4B - Develop process to ensure AAC comment / review of vehicle procurements well in advance of the prototype arriving on scene. The planned AC Transit bus procurements over the next five years includes the following types of buses: • Gillig standard 40’ transit buses in FY17 – FY18 • Articulated buses (unknown manufacturer) • Double deck buses (unknown manufacturer) • Standard 40’ transit buses in FY20 (unknown manufacturer) Bus procurements include a bidding process where a bus manufacturer is selected to produce the buses, which is followed by a pre-production meeting, and the manufacturing of the buses. -
New Energy Buses in China Overview on Policies and Impacts Published By: Deutsche Gesellschaft Für Internationale Zusammenarbeit (GIZ) Gmbh
New Energy Buses in China Overview on Policies and Impacts Published by: Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH Registered offices Bonn and Eschborn Address Tayuan Diplomatic Office Building 2-5 14 Liangmahe South Street, Chaoyang District 100600 Beijing, P. R. China T +86 (0)10 8527 5589 F +86 (0)10 8527 5591 E [email protected] I www.sustainabletransport.org This publication is a product of the Sino-German Cooperation on Low Carbon Transport which, implemented by GIZ, is part of the International Climate Initiative (IKI). The Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) supports this initiative on the basis of a decision adopted by the German Bundestag. Author: China Automotive Technology and Reseach Center Co.,Ltd CATARC (Li Lumiao, Yao Zhanhui) Editing: GIZ (Sebastian Ibold, Sun Shengyang, Shen Lei) Layout: GIZ (Sebastian Ibold, Shen Lei) Sources and photo credits:: CATARC if not stated differently URL links: Responsibility for the content of external websites linked in this publication always lies with their respective publishers. GIZ expressly dissociates itself from such content. GIZ is responsible for the content of this publication. Beijing, 2020 New Energy Buses in China Overview on Policies and Impacts Table of Contents Background 5 1. Overview on the development of NEVs in China 5 2. Responsibilities of departments for the promotion of urban buses 6 3. Overview on policies and subsidies for the promotion of New Energy Buses 7 3.1 New Energy Bus policies on national level 7 3.2 New Energy Bus policies on provincial/municipal level 10 3.3 Policy implementation effects 12 4. -
A Green Bus for Every Journey
A Green Bus For Every Journey Case studies showing the range of low emission bus technologies in use throughout the UK European engine Bus operators have invested legislation culminating significant sums of money and in the latest Euro VI requirements has seen committed time and resources the air quality impact of in working through the early new buses dramatically challenges on the path to improve but, to date, carbon emissions have not been successful introduction. addressed in bus legislation. Here in Britain, low carbon Investment has been made in new bus technologies and emission buses have been under refuelling infrastructure, and even routing and scheduling development for two decades or have been reviewed in some cases to allow trials and more, driven by strong Government learning of the most advanced potential solutions. policy. Manufacturers, bus operators A number of large bus operators have shown clear and fuel suppliers are embracing leadership by embedding low carbon emission buses into the change, aware that to maintain their sustainability agenda to drive improvements into the their viability, buses must be amongst environmental performance of their bus fleet. the cleanest and most carbon-efficient vehicles on the road. Almost 4,000 There have, of course, been plenty of hurdles along the Low Carbon Emission Buses (LCEB) are way; early hybrid and electric buses experienced initial now operating across the UK, with 40% of reliability issues like any brand new technology, but buses sold in 2015 meeting the low carbon through open collaboration the technology has rapidly requirements. These buses have saved over advanced and is now achieving similar levels of reliability 55,000 tonnes of greenhouse gas emissions as that employed in gas buses and conventional diesel (GHG) per annum compared with the equivalent buses, with warranties extending and new business number of conventional diesel buses.