ADVANCED VEHICLE TECHNOLOGIES RESEARCH ANNUAL INDUSTRY ADVISORY MEETING NOVEMBER 14, 2017 Presenter: Michael Lewis mclewis@cem.utexas.edu
2 CEM Vehicles Research Program Advance state-of-art and aid commercialization and adoption of new vehicle technologies 1. Research and Development Prototype vehicle builds and demonstrations Testing of advanced vehicle components 2. Education Evaluation of zero emissions vehicles for fleet operators Students involvement on projects 3. Technology Transfer Projects with industry partners Working with small business to evaluate technologies
3 Today s Presentation Recent Accomplishments Paratransit Bus Electrification Bus Exportable Power Supply Hydrogen Fuel Cell UPS Van Upcoming Work and Goals
4 Paratransit Bus Electrification
5 Paratransit Bus Electrification Sponsor: Federal Transit Administration Partners: Center for Transportation and the Environment, Utah Transit Agency, Transworld Associates, University of Utah Objective: Electrify accessories onboard a paratransit bus to allow the diesel engine to be turned off at passenger stops Goal: Reduces emissions and fuel consumption at sensitive passenger loading zones and increase vehicle life through reduced idling hours How: Replaced belt drive HVAC compressor with an electric compressor powered by a high voltage battery and alternator Accomplishments: Built two prototype buses and delivered to UTA in August and September this year.
6 Paratransit Bus Electrification Worked with Transit Agency to retrofit two late model buses CEM designed the system architecture and control system and integrated high voltage components High voltage alternator installed in place of prior belt-driven compressor Bus 12V Battery Alternator Regulator 350VDC High voltage alternator DC Items inside the contactor box 12V Battery voltage sensor Battery voltage sensor Alternator current sensor HVAC current sensor Battery current sensor Heater current sensor Contactor Fuse Pre-charge resistor and contactor High Voltage ~12kWh battery pack Aux. coolant heater Items inside the EnerDel battery box Battery Management System Battery charger Power cord 240Vac A/C Compressor motor High voltage lithium ion battery powers compressor and auxiliary heater High voltage connections shown in red HVAC controller and inverter Demonstration to occur over the next year as team looks to find industry partners to take ownership of system and provide a commercial solution Electric compressor High voltage battery
Bus Exportable Power Supply 7
8 Bus Exportable Power Supply Sponsor: Federal Transit Administration Partners: Center for Transportation and the Environment, Hagerty Consulting Objective: Study and demonstrate the feasibility of using a hybrid transit bus for emergency response exportable power Goal: Determine technical, political, and logistics constraints and determine the value of exportable power on a transit bus How: Advisory panel meetings to discuss feasibility aspects, followed by a technology demonstrator to be performed end of 2017. Accomplishments: Concluded advisory meetings, modeled BEPS with building loads, and presented results at American Public Transportation Association EXPO.
9 Bus Exportable Power Supply Modeling of the BEPS system to better understand: How BEPS buses could be linked together to power high-load facilities Control strategies to regulate frequency and voltage Fuel consumption Thermal load as the bus idles and exports power
10 Hydrogen Fuel Cell Delivery Van Fuel Cell Batteries Hydrogen storage Electric motor and Power controls
11 Why Hydrogen Vehicles? Electric vehicles have an energy and power problem when considering the BIG picture A typical fueling station stores 10,000 20,000 of gasoline That s up to 668 MWh of energy, or approximately 10 acres of batteries We do not need to store the energy at the fueling station, but providing recharging power from the grid is not trivial A standard fuel pump dispenses energy in the form of gasoline at a rate of 20 MW Level 3 DC Fast Chargers operate at 140 kw Hydrogen stores twice the energy as batteries and dispenses at rates on par with gasoline, enabling a zero emissions solution with little compromise in driver behavior Electric motor and Power controls Fuel Cell Hydrogen storage Battery https://news.utexas.edu/2017/09/19/hydrogen-may-be-the-answer-to-evs-energy-problems
12 Hydrogen Fuel Cell Delivery Van Sponsor: Department of Energy, California Energy Commission, South Coast Air Quality Management District Partners: Center for Transportation and the Environment, Unique Electric Solutions, Valence Technologies, Hydrogenics, United Parcel Service Objective: Develop and demonstrate a hydrogen fuel cell delivery van Goal: Deploy 16 zero emissions fuel cell delivery vans in California to accelerate commercialization of medium-duty hydrogen trucks How: Convert a 2007 diesel van to a hydrogen-electric hybrid. Prototype being developed at CEM with tech transfer to UES for Phase 2 vehicles. Accomplishments: Nearing completion of prototype vehicle. Vehicle displayed at the Alternative Clean Transportation EXPO and was highlighted in Game Changers episode on Longhorn Network.
13 Hydrogen Fuel Cell Delivery Van Teamed with electric vehicle industry partner to retrofit late model diesel vans Includes the use of UT students hired by EV partner for the prototype build at CEM CEM lead vehicle design, including powertrain modeling, to define optimal fuel cell and battery energy storage Key finding was that stock duty cycles did not accurately reflect real world duty cycles CEM also leading hydrogen systems integration and support Prototype to be finalized in early 2018 followed by a demonstration phase before moving into Phase 2 for an additional 16 vehicles http://ieeexplore.ieee.org/document/7993321/
14 Other Areas of Hydrogen Research Conformable Hydrogen Storage DOE incubator project with High Energy Coil Reservoir Inc Identify low permeable liner for high pressure vessel Photocatalytic Hydrogen Reformer Early partnership with Syzygy Plans to build prototype reactor through NSF or DOE SBIR programs
15 Upcoming Work and Goals Complete existing projects and expand or move on to Phase 2 Paratransit team goal to implement technology in more demonstrations and look for a commercialization entity BEPS team would like to see FTA fund a real world demonstration and implement the system onboard on transit bus in service Hydrogen Delivery Van complete prototype and move into Phase 2 Expand opportunities within the University Joined NSF I/UCRC group in 2017 focused on efficient and sustainable transportation Developing relationships with professors focused on vehicle technologies Continue looking for grant opportunities Expand research within industry Your help is appreciated!