[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]
SAE International approves TIR J2954 for PH/EV wireless charging; targeting finalized standard by 2018
May 18, 2016
SAE International approved for publishing “SAE TIR J2954 Wireless Power Transfer for Light-Duty Plug-In/ Electric Vehicles and Alignment Methodology,” a milestone industry guideline to establish wireless power transfer between infrastructure, vehicle suppliers and OEMs for plug-in electric and electric vehicles (PH/EV). (Earlier post.) The document will be available from the SAE website on 31 May.
With wireless charging quickly becoming mainstream for consumer electronic devices in low power applications, standardization is needed for commercialization of high power wireless power transfer (WPT) of PH/EVs. (The current SAE Standard SAE J1772 establishes the wired charging standard.)
Cal Energy Commission hosting technology merit review workshop on EV charging infrastructure project
April 22, 2016
The California Energy Commission will host a workshop Monday, 25 April, in which executives from four companies including ChargePoint and Green Charge Networks, two non-profits, one municipal utility district and one state agency will discuss the successes and challenges of developing electric vehicle charging technology in California.
This workshop will influence future funding opportunities at the Commission through its Alternative and Renewable Fuel and Vehicle Technology Program, which provides up to $100 million a year for alternative fuels and vehicle technology development.
ORNL achieves 90% efficiency with 20 kW wireless charging for vehicles; looking ahead to 50 kW
March 31, 2016
A 20-kilowatt wireless charging system demonstrated at Department of Energy’s Oak Ridge National Laboratory has achieved 90 percent efficiency and at three times the rate of the plug-in systems commonly used for electric vehicles today.
ORNL’s power electronics team achieved this world’s first 20 kW wireless charging system for passenger cars by developing a unique architecture that included an ORNL-built inverter, isolation transformer, vehicle-side electronics and coupling technologies—all in less than three years. For the demonstration, researchers integrated the single-converter system into an electric Toyota RAV4 equipped with an additional 10 kWh battery.
Group of European electric bus manufacturers agrees on an open interface for charging
March 15, 2016
European bus manufacturers Irizar, Solaris, VDL and Volvo have agreed to ensure the interoperability of electric buses with charging infrastructure provided by ABB, Heliox and Siemens. The objective is to ensure an open interface between electric buses and charging infrastructure and to facilitate the introduction of electric bus systems in European cities.
Common, preferred interfaces will be opened up for all market participants and will be used for electric buses for opportunity charging (fast charging at end stops) and for overnight charging. The group is committed to contribute to European standardization activities and to share experiences with CEN/CENELEC and ISO/IEC in order to establish a common European standard for electric bus systems.
Cal Energy Commission awards $1.5M to Berkeley to advance open-source advanced smart charging technology; OpenVBOSS
February 11, 2016
The California Energy Commission is awarding the University of California, Berkeley $1.5 million to develop an advanced smart charging technology that maintains plug-in electric vehicle consumer needs while reducing charging loads, to achieve electricity grid benefits. The project will focus on controlling the charging of PEVs in residential and small commercial settings using a novel and flexible open-source, open-software architecture charge communication and control platform.
The proposed project addresses the problem of access and signals/controls for local data streams in order to control electricity systems loads for grid management. PEVs are proliferating in California under the Advanced Clean Cars Program, sometimes in geographic clusters; this is creating potential load management issues for electrical utility grids at the feeder and transformer level.
Nissan and ENEL announce V2G system, launch smart grid trials in Europe
December 08, 2015
At the 21st UN Conference on Climate Change (COP21) in Paris this week, Nissan announced the development of a Vehicle-to-Grid (V2G) system which will allow drivers to operate as individual energy hubs with the ability to store, use or return electricity to the grid.
Nissan will commence Smart Grid trials in partnership with multinational energy manufacturer and distributor, ENEL. In March, Nissan and Endesa, an Enel Group subsidiary, had signed an agreement at the Geneva International Motor Show pledging to work together to deliver a mass-market V2G system and an innovative business model designed to leverage this technology. (Earlier post.)
Oak Ridge AMIE demo integrates 3D-printed building, natural gas hybrid with bi-directional wireless power transfer
September 24, 2015
A research demonstration unveiled at the Department of Energy’s Oak Ridge National Laboratory (DOE ORNL) combines clean energy technologies into a 3D-printed building and a 3D-printed natural gas-powered hybrid vehicle to showcase a new approach to energy use, storage and consumption. The Additive Manufacturing Integrated Energy (AMIE) demonstration, displayed at DOE’s Office of Energy Efficiency and Renewable Energy Industry Day event, is a model for energy-efficient systems that link buildings, vehicles and the grid.
An ORNL team worked with industrial partners to manufacture and connect a natural-gas-powered hybrid electric vehicle with a solar-powered building to create an integrated energy system. Power can flow in either direction between the vehicle and building through a lab-developed wireless technology. The approach allows the car to provide supplemental power to the 210-square-foot building when the sun is not shining.
BMW launches BMW i ChargeForward pilot in SF Bay Area
August 04, 2015
The BMW Group Technology Office, together with Pacific Gas and Electric Company (PG&E), have launched an 18-month pilot of the BMW i ChargeForward Program in the San Francisco Bay Area. The program is now issuing calls to participating BMW i3 drivers in the Bay Area to request the interruption of the charging of their EVs for one hour.
Working with a group of nearly 100 BMW i3 drivers, selected from approximately 400 applicants, BMW i ChargeForward will demonstrate how intelligent management of electric vehicle charging can contribute to optimizing electric power grid efficiency while reducing total cost of electric vehicle ownership. The study has two parts: (1) a managed charge pilot program involving BMW i3 owners; and (2) a battery second-life energy storage system.
Daimler wraps up eMERGE EV 2-year fleet trial, launches larger eMERGE2 with EVs and PHEVs
July 31, 2015
Daimler reports that the two-year eMERGE real-world trial of 146 smart fortwo electric drive vehicles has been completed. Those taking part in the project were private and business customers in Berlin, Potsdam and North Rhine-Westphalia. The lowest average energy consumption per vehicle over one year was 10.4 kWh/100 km, while the longest single-charge range was 161 kilometers (100 miles). The smart fortwo electric drive is certified with a consumption of 16.3 kWh/100 km and a range of 145 kilometers (90 miles).
eMERGE is being followed directly by eMERGE2, which will see up to 200 cars being used in the model regions of Berlin/Potsdam, Stuttgart, Rhine-Ruhr and Rhine-Main. The vehicle fleet will include the battery electric B 250 e and plug-in hybrids from Mercedes-Benz. The different technology and vehicle segments suggest different use cases than the smart fortwo electric drive.
Qualcomm and BRUSA sign commercial wireless electric vehicle charging license agreement
July 29, 2015
BRUSA Elektronik AG, an automotive Tier 1 power electronics supplier, has licensed Qualcomm Incorporated’s Halo (earlier post) patented inventions to commercialize Wireless Electric Vehicle Charging (WEVC) systems for Plug-In Hybrid and Electric Vehicles (EVs). Under the terms of the agreement, Qualcomm granted to BRUSA a royalty-bearing patent license to develop, make and supply WEVC systems for certain automobile manufacturers.
BRUSA, which has been working on its own Inductive Charging System (ICS) for wireless power transfer (WPT), developed its own coil geometry: FRAME technology. The coil is rectangular and enables inductive charging of electric vehicles with the integration of power electronics both in the vehicle and in the base plate, enabling a one-box system.
Researchers show use of MFRE can at least double wireless power transfer efficiency; more efficient than metamaterials
July 23, 2015
Researchers at North Carolina State University and Carnegie Mellon University have shown that passing wireless power transfer through a magnetic resonance field enhancer (MR-FE)—which could be as simple as a copper loop—can at least double transfer efficiency as compared to transferring through air alone. MR-FE use could potentially boost transfer efficiency by as much as 5,000% in some systems, the researchers said.
Wireless power transfer works via magnetic coupling or inductive coupling, and can achieve very high efficiency when the distances between the transmitter and receiver are small—less than a few centimeters. In such a case, the transmitter and receiver are strongly coupled, with a high coupling coefficient (usually greater that 0.9). As distance increases, the strength of the coupling decreases. Enhancing wireless power transfer efficiency over greater distances—to support, for example, the wireless charging of electric vehicles—has thus been a major goal of many research groups.
ELIX Wireless introduces MDC-based 10kW wireless charging solution
July 15, 2015
ELIX Wireless introduced the E10K Wireless Charging System, a wireless charging solution that delivers a full 10kW of wireless power transfer. The E10K Wireless Charging System is based on ELIX Wireless’ patented Magneto-Dynamic Coupling (MDC) technology. MDC, developed at the University of British Columbia, is based on two rotating permanent magnets in transmitter and receiver, rather than resonant inductive technology. (Earlier post.) ELIX Wireless rolled out its initial product offering, the E1K Wireless Charging System, to customers in early 2015. The E10K Wireless Charging System is now commercially available to customers and partners.
Typical wireless charging solutions available in the market today are based on inductive technologies and deliver up to 7.7kW. To meet the demand for a faster, higher power wireless charging solution that can operate under extreme environmental conditions, ELIX Wireless developed the E10K Wireless Charging System. E10K “building blocks” can be combined together to create even higher power systems.
EU project V-Charge makes final demonstration of automated valet-parking and inductive charging system
The V-Charge (Valet Charge) research project, a four-year, €5.63-million (US$6.21-million) effort partly funded through the EU’s Seventh Framework Programme for Research to develop systems for automated valet-parking and inductive charging for electric vehicles, has made the final presentation of its work in a demonstration at the Excellence Parking Garage at Amsterdam airport.
The fully automated parking system relieves drivers of the tiresome and time-consuming task of finding a parking spot. The vehicle not only automatically looks for an empty parking space, but finds an empty space with charging infrastructure and inductively charges its battery. Once the charging process is finished, it automatically frees up the charging bay for another electric vehicle and looks for a conventional parking space.
Hyundai-Kia America and Mojo Mobility partnering on wireless fast-charging project
July 08, 2015
Hyundai-Kia America Technical Center, Inc., (HATCI) and Mojo Mobility, Inc., a wireless power technology company, have been awarded funding from the US Department of Energy’s (DOE) Office of Energy Efficiency and Renewable Energy (EERE) Vehicle Technologies (VT) program to research and develop a system for wireless fast-charging an electric vehicle at up to a 19.2 kW power transfer rate. The two have already been partnering on a DOE-funded project on high-efficiency, low-EMI and positioning-tolerant wireless charging of EVs.
Mojo Mobility’s Near Field Power technology is able to meet charging power levels ranging from 1 W to 90 W and higher for mobile devices and up to 20 kW for electric vehicles. The wireless charging systems are capable of transferring their high power without need for precise alignment between the charger and the vehicle.
A closer look at Audi’s new R8 e-tron EV and battery
June 12, 2015
The model line-up of the second generation of Audi’s high-performance R8 sports car, unveiled at the Geneva Motor Show earlier this year, includes the new R8 e-tron battery-electric vehicle. (Earlier post.) The new R8 e-tron delivers 340 kW (456 hp) of power; acceleration from 0 to 100 km/h (62.1 mph) in 3.9 seconds; and a driving range of up to 450 km (279.6 mi). Range for the first generation R8 e-tron was was 215 km (133.6 mi).
Available for order this year upon customer request, the new R8 e-tron uses a newly developed high energy density Li-ion technology optimized for a purely electric vehicle drive. Li-ion cell energy density was increased from 84 to 152 Wh/kg; in comparison to the first technology platform, the battery capacity has grown from 48.6 kWh to 90.2 kWh—without changing the package.
CA Energy Commission awards CSE $1.5M for development of standards-based smart EV charging platform; first employment of ISO/IEC 15118
The California Energy Commission has awarded a $1.5 million grant to the Center for Sustainable Energy (CSE) to lead development of an advanced management platform for integrating electric vehicle (EV) charging with utility-scale energy systems. CSE will work closely with KnGrid, a leader in vehicle-grid communications, to create a standardized platform that optimizes charging benefits for both grid operators and vehicle owners. The result will be the first data platform to employ the international ISO/IEC 15118 standard for flexibly managing vehicle charging with data from the power grid.
The project team will develop and implement the first standards-based smart charging platform, termed a “demand clearing house” (DCH) in the international ISO/IEC 15118 protocol (entitled “Road vehicles - Vehicle to grid communication interface”), that will consolidate real-time grid profiles from local utilities and energy market pricing from the California Independent System Operator (CAISO) with simultaneous charging of grid-connected EVs.
1st major utility proposal for EV charging infrastructure presented to CPUC
June 05, 2015
A diverse set of public interest groups, automakers, labor unions, and San Diego Gas & Electric (SDG&E) submitted a proposed settlement to the California Public Utilities Commission (CPUC) to accelerate the deployment of smart electric vehicle (EV) charging stations that would support the utility grid in San Diego.
The application is California’s first utility pilot proposal to help develop charging infrastructure, and, through pricing that allows for customer-managed charging, to manage transportation electrification load to support the evolving needs of an electrical grid increasingly dominated by variable renewable energy.
Ford partners with Haier, Trina Solar and Delta Electronics to launch MyEnergi Lifestyle in China
May 27, 2015
At Consumer Electronics Show Asia, Ford launched a strategic collaboration with Haier (home appliance), Trina Solar (solar power) and Delta Electronics (power management) to introduce MyEnergi Lifestyle (earlier post) to China, a holistic approach for lowering the energy costs and carbon footprint of Chinese families.
MyEnergi Lifestyle, designed to address China’s energy needs and air quality concerns, showcases how combining renewable energy sources, efficient home appliances and a plug-in vehicle can significantly reduce energy costs and carbon footprint. Ford introduced a MyEnergi Lifestyle collaboration for the US in 2013, working with Whirlpool, SunPower and Eaton.