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[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.]

New “2-in-1” EV unit integrates traction motor and A/C compressor for increased range in hot climates

October 01, 2014

Engineers from Nanyang Technological University (NTU) and the German Aerospace Centre (DLR) have designed a “2-in-1” electric motor unit which can increase the range of electric vehicles in hot climates. This innovative electric machine integrates the A/C compressor, the compressor drive motor and the traction motor into a single housing physically clutching with the compressor during braking events.

The approach unifies the EV traction and compressor drives into a single housing which drive together during braking events. Based on simulations and analysis, the team expects the system to reduce battery consumption by at least 3% compared to existing mechanisms while improving the regenerative energy capturing capacity of the system by 8%. Overall, the novel design could increase the range of electric vehicles by an additional 15 to 20% with other modifications, the researchers suggested.

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DOE awards $17M for vehicle technologies; batteries, PEEM, engines, materials, fuel

August 21, 2014

The US Department of Energy (DOE) is awarding $17.6 million in 14 cooperative agreements with small businesses and institutions of higher education to develop and to deploy efficient and environmentally friendly highway transportation technologies that will help reduce petroleum use in the United States. The awards made under an Incubator Funding Opportunity Announcement (DE-FOA-0000988) issued in January. (Earlier post.)

The newly selected projects are in five areas: energy storage; power electronics and electric motors (PEEM); advanced combustion engines; materials technologies, and fuels and lubricant technologies. Awardees are:

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Researchers develop efficient technique to develop new materials with desired coefficient of friction

July 11, 2014

Researchers at Japan’s National Institute for Materials Science (NIMS) have developed a highly efficient method for developing friction materials with a desired frictional property. Using the new method, it would be possible to find the appropriate crystal preferred orientation for coatings with the desired value of the coefficient of friction.

The method, described in a paper in the journal Tribology Letters, could thus significantly accelerate the development of materials that have a friction coefficient suited to the purpose of use, such as low-friction materials for reducing energy loss and high-friction materials required for high-performance brakes.

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Project developing electrically conductive lubricants to protect electric motors from discharges in the bearings

June 12, 2014

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The effect of insulating (upper right) and electrically conductive (lower right) lubricants. The insulating lubricant (yellow coating) can cause electrical discharges (red lightning bolts), which can damage the bearing’s raceways. If the lubricant is conductive (green coating), no electrical discharges occur. Source: Bosch. Click to enlarge.

A joint research project, funded by the German Federal Ministry for Education and Research, is investigating the development of ionic-fluid-enhanced electrically conductive lubricants to protect electric motors from the surface damage that can result from electrical discharges in the bearings (electrical discharge machining, or EDM). The initiative was launched to prepare for future vehicles which will require higher voltages than current models.

At present, 12 volts provide all conventional automotive electric systems—from lights and radios to air conditioners—with sufficient power. Within the next few years, the figure may rise to 48 volts to support a growing number of functions. The voltage levels of electric and hybrid vehicles are even higher: these vehicles can require as much as 400 volts. Higher voltage levels result in stronger alternating electric fields in alternators and electric motors, explained Dr. Gerd Dornhöfer, a Bosch scientist taking part in the “SchmiRmaL” project (Switchable intelligent tribological systems with minimal friction losses and maximum lifespan).

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DELIVER electric light commercial vehicle demonstrator to make its debut at FISITA

May 28, 2014

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DELIVER. Click to enlarge.

Liberty Electric Cars, the European subsidiary of Green Automotive Company, has completed the build of the first fully functioning example of “DELIVER”—an electric light commercial delivery vehicle funded by the European Commissions’ 7th Framework Programme. DELIVER will have its world premiere at FISITA World Automotive Congress, which starts on 2 June 2014 in Maastricht (NL).

The DELIVER (Design of Electric LIght Vans for Environment-impact Reduction) project started in November 2011 with the goal of reducing the environmental impact in urban areas by 40%, along with delivering optimized ergonomics and loading space at affordable costs. Ten partner companies are involved in the design and construction of an electric light commercial vehicle.

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Kinetics Drive Solutions and Efacec collaborate on electric bus propulsion systems

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Kinetics’ NexDrive EV3-850 + PowerPhase HD electric drive system. Click to enlarge.

Kinetics Drive Solutions Inc. and Portugal-based Efacec Electric Mobility, S.A. are collaborating to deliver full-vehicle propulsion systems for electric buses. This solution is engineered to provide bus OEMs a fully integrated and optimized system that can be implemented on various platforms with minimal engineering development. Efacec’s first electric bus with the NexDrive solution will be deployed for field operation in July.

In April, UQM Technologies Inc. and Kinetics announced their collaboration to offer an integrated electric motor and multi-speed transmission system for commercial vehicle applications (earlier post); that system is used in the Kinetics/Efacec solution.

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Ames Lab researchers observe rare-earth-like magnetic properties in iron

April 29, 2014

Scientists at the Department of Energy’s Ames Laboratory have observed magnetic properties typically associated with those observed in rare-earth elements in iron, albeit at cryogenic temperatures. These properties are observed in a new iron-based compound that does not contain rare earth elements, when the iron atom is positioned between two nitrogen atoms.

The discovery opens the possibility of using iron to provide both the magnetism and permanence in high-strength permanent magnets, such as those used in direct-drive wind turbines or electric motors in hybrid cars. The results appeared in Nature Communications.

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UQM Technologies and Kinetics Drive Solutions collaborate on electric drive systems for all-electric commercial vehicles

April 23, 2014

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EV3-850 combined with PowerPhase HD220. Click to enlarge.

UQM Technologies Inc. and Kinetics Drive Solutions Inc. are collaborating to offer an integrated electric motor and multi-speed transmission system for commercial vehicle applications that will benefit from a full system approach. This system is engineered to provide commercial vehicle manufacturers with an efficient electric drive powertrain while minimizing the development time for integration.

Advantages for customers will be a fully integrated and calibrated system that allows quicker time to market and reduced development time and cost, as well as fewer engineering variables. Systems will feature UQM PowerPhase HD electric motors and controllers combined with Kinetics NexDrive transmissions.

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Siemens and BAIC form JV to produce high efficiency electric powertrain systems for NEVs

April 21, 2014

Siemens AG and Beijing Automotive Industry Holding Co., Ltd. (BAIC), one of the major Chinese carmakers, signed a joint venture agreement at the 2014 Beijing International Automotive Exhibition and outlined their plan to utilize Siemens’ electric drive train components in a range of BAIC new energy vehicles (NEVs).

The JV, Beijing Siemens Automotive E-Drive System Co., Ltd., will manufacture components for the electric drivetrain including power-electronics and electric motors. The new electric drivetrains consist of a safer and higher power density inverters and highly energy efficient motors. Prototype and small volume production will start in 2014, followed by mass production in a new Beijing-based factory in 2015. The production volume is planned to be more than 100,000 units per year with upside potential.

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First “MotorBrain” prototype shown; lightweight electric motor system with no rare earth metals

April 11, 2014

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MotorBrain prototype. Integrated unit is on the left, the motor core is at the right. Click to enlarge.

The four partners in the European research project ”MotorBrain”—Infineon Technologies, Siemens, the Institute of Lightweight Engineering and Polymer Technology at the Technische Universität (Technical University) Dresden and ZF Friedrichshafen—are presenting their first prototype of a lightweight electric motor system that requires no rare earth metals.

The €36-million (US$50-million) MotorBrain effort is one of the largest single European research projects in the area of electromobility. The MotorBrain prototype integrates the motor, gear drive and inverter. The prototype is three-quarters the size of models from 2011, the year when MotorBrain began; the prototype now being presented could fit in a conventional-sized laptop or notebook backpack.

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DOE awards $17M to FY 2014 SBIR Phase II projects; includes Si/graphene anodes, motor windings, exhaust treatments

March 31, 2014

The US DOE recently awarded $17 million to 17 FY 2014 Small Business Innovation Research (SBIR) Phase II projects to further develop Phase I projects and to produce a prototype or equivalent within two years. The selected 17 awards represent the best of nearly 1,000 ideas submitted for the FY 2012/13 Broad Based Topic Solicitation, DOE said.

The selected projects include 6 vehicle-related technologies and 2 hydrogen and fuel cell technologies, as well as new hydropower, heat pump, solar and manufacturing technologies. Vehicle technologies span a range from new Si/graphene Li-ion anode materials and composites for motor windings to diesel aftertreatment and advanced lubricants. Selected vehicle and hydrogen technology projects are:

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Lifecycle study explores production of NdFeB rare-earth magnets from primary production and recycling pathways

March 19, 2014

A lifecycle study comparing the virgin production route of neodymium−iron−boron (NdFeB) magnets with two hypothetical recycling processes found that recycling of neodymium, especially via manual dismantling, is preferable to primary production, with some environmental indicators showing an order of magnitude improvement.

The choice of recycling technology is also important with respect to resource recovery, the study by a team from the Netherland and the UK found. While manual disassembly allows in principle for all magnetic material to be recovered, shredding leads to very low recovery rates (<10%). The study appears in the ACS journal Environmental Science & Technology.

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Zytek lightweight electric powertrain for Yamaha’s MOTIV.e city car concept

February 21, 2014

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Zytek’s lightweight 25kW powertrain drives the Yamaha MOTIV.e through a Vocis single ratio transmission. A further development of the electric machine will deliver more power and torque from the same compact package. Click to enlarge.

Yamaha’s new MOTIV.e city car concept, shown at the Tokyo motorshow, is powered by an electric drive system from Zytek that employs a range of new design approaches to minimize the cost, weight and size of the powertrain while maximizing the performance and range. By supplying a number of core high-voltage components as an optimized system, Zytek is also minimizing the time required for vehicle development.

MOTIV.e comes from the partnership between Yamaha and Gordon Murray Design, using Murray’s iStream manufacturing technology; Murray has partnered in the past with Zytek on the T.27 City Car—the technology basis for the MOTIV.e. (Earlier post). Zytek Automotive, a specialist EV/HEV/fuel cell engineering consultancy, is a subsidiary of Continental, the global powertrain, chassis and interior products supplier.

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New 3-speed EV powertrain to offer 10-15% improvement in EV range

February 19, 2014

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Compared to a single-speed EV or HEV transmission, DSD’s MSYS 3-speed system provides a 40% weight saving and 10-15% lower energy consumption. Click to enlarge.

UK-based Drive System Design is developing a new EV powertrain based on an alternate approach to powershifting (no torque interrupt) achieved by separating the existing functions of a synchronizer. The integrated design of an axial flux YASA motor (earlier post) with the multi-speed transmission contributes to simplification of the motor cooling system, electrical architecture and powertrain control system.

The MSYS system can mean a 10-15% improvement in the range of electric vehicles, the company says. (Earlier post.) The company was recently showcased at the Cleantech Innovate 2014 event by the UK’s LowCVP organization (Low Carbon Vehicle Partnership), along with 7 other companies. DSD was the winner of a LowCVP commendation as the most impressive of the road transport-focused entries.

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Magnetic eCVT could replace conventional hybrid mechanical eCVT with likely 1-2% fuel economy improvement and other benefits

February 12, 2014

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MAGSPLIT is intended to replace mechanical eCVTs with a combination motor/magnetic gear. Source: Magnomatics. Click to enlarge.

At the SAE 2014 Hybrid & Electric Vehicle Technologies Symposium in San Diego, Chris Kirby, founder and Managing Director of UK-based Magnomatics, presented an overview of the company’s second-generation MAGSPLIT (Magnetic Power Split) eCVT system, a compact magnetic transmission designed to replace both the mechanical planetary gearset and motor/generator that form a typical hybrid powersplit system.

Preliminary testing results of a prototype of the magnetic eCVT presented at the conference suggest a likely 1-2% improvement in fuel consumption compared to a conventional hybrid system, along with the benefits of reduced system complexity, no lubrication, low battery charge swing (allowing either downsizing the battery or extending the life of the original size) and compact packaging. Much further testing and optimization remains to be done, Kirby noted.

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EVDrive demonstrates 4-wheel 4-motor torque vectoring technology for electric UTVs

January 27, 2014

EVDrive Overview - PUBLIC
EVDrive torque vectoring. Click to enlarge.

EVDrive has developed and demonstrated an electric 4-wheel, 4-motor torque vectoring technology (Terra-Torque-Drive) specifically targeted at 4-wheel off-road powersports vehicles such as side-by-side Utility Terrain Vehicles (UTVs).

The Terra-Torque-Drive-powered e-UTV demonstrator uses four sealed liquid-cooled EVDrive EVD35 35kW/47hp peak drive sub-systems, de-tuned to ~30kW/hp each or delivering a total of ~160hp/120kW peak. At each motor shaft, ~66 ft-lbs (89 N·m) peak torque is delivered. The 4 gearboxes allow ratio changes with off-the-shelf gearsets. With the currently installed single speed gearsets at the CV joint of each wheel, 726 ft-lbs (984 N·m) peak torque is delivered. This is the kind of torque necessary to perform Zero Radius Turns with a fully loaded vehicle and perhaps even some extreme rock climbing.

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Renault Energy’s Sport F1 hybrid Power Unit; competing with intelligent energy management, not just power

January 22, 2014

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Exploded view of the parts of the power unit: 1.6l turbocharged V6 engine; battery; turbocharger; MGU-K; and MGU-H. Click to enlarge.

Renault’s Energy F1-2014 hybrid Power Unit (earlier post), designed and developed for the FIA Formula One World Championship this year, is ready for the track; the 2014 season kicks off in Australia on 16 March. New FIA regulations are driving energy efficiency levels higher this year, with two types of energy propelling the cars. The internal combustion engine will produce power through consumption of traditional carbon-based fuel, while electrical energy will be harvested from both exhaust and braking by two discrete motor generator units. Teams and drivers will balance the use of the two types of energy throughout the race.

This year, the power unit is divided into six separate elements: Engine (ICE); Motor generator unit-kinetic (MGU-K); Motor generator unit-heat (MGU-H); Energy store (ES); Turbocharger (TC); and Control electronics (CE). The combination of the 1.6-liter turbocharged direct injection V6 engine (maximum speed of 15,000 rpm) with the two motor generator units and battery energy store delivers combined maximum power output of 760 bhp (567 kW), on a par with the previous V8 generation.

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DOE to issue FY14 Vehicle Technologies program-wide funding opportunity announcement

December 20, 2013

The Department Of Energy (DOE), Office of Energy Efficiency and Renewable Energy (EERE) intends to issue, on behalf of its Vehicle Technology Office (VTO), a program-wide Funding Opportunity Announcement (DE-FOA-0000991) for fiscal year 2014 on or about January 2014. The advance notice (DE-FOA-0001053) is to alert interested parties of the coming FOA.

The areas of interest outlined in the notice of intent (NOI) fall into two broad categories: technologies to advance plug-in electric vehicles; and technologies to improve fuel efficiency, including dual-fuel, fuel properties (e.g., high octane fuels), and advanced powertrain work.

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Protean Electric and FAW-VW developing production-intent electric propulsion system with in-wheel motors

December 12, 2013

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Cutaway of the Protean Electric in-wheel motor. Click to enlarge.

In-wheel electric drive developer Protean Electric is partnering with FAW-Volkswagen Automotive Co., Ltd. (FAW-VW) in China to develop a new electric propulsion system that will include Protean Electric’s Protean Drive with intent towards a demonstration vehicle program and production.

FAW-VW will create a new rear-wheel drivetrain for an electric vehicle (EV) based on the new Bora compact sedan, utilizing two Protean in-wheel motors. This cooperation began several months ago; all bench testing, engineering calibration and on-site application support is expected to be completed within a year. Protean Electric will also assist FAW-VW in the development of safety and vehicle controls that can be applied to additional vehicle programs.

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SAE New Energy Vehicle Forum: China’s focus on NEVs may have profound impact on future of transportation

November 13, 2013

China has a number of critical economic and environmental imperatives driving its pursuit of vehicle electrification, said the roster of plenary speakers at the SAE 2013 New Energy Vehicle Forum held in Shanghai this week. These include the increasingly problematic pollution and haze in cities; China’s projected increased reliance on imported oil; the need for rationalized multimodal transportation systems in ever more congested and space-limited cities; the growing dominance of the China auto market; and the desire to have China become the leader in the next generation of automotive technology, vehicles and mobility systems.

The shift from fossil fuels to electricity—while held in common with other countries—will be based on the “specific situation” in China, making the best use of China’s own advantages and innovations, but also with international cooperation, said Dr. Zhixin Wu, Vice President of the China Automotive Technology and Research Center (CATARC). The details of that specific situation may result in an electric vehicle parc somewhat different than in Western countries, other speakers noted, and may indeed—given the obvious scale of the China market—herald a major transformation in transportation, including the type and role of personal vehicles, others suggested.

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JRC study finds 8 metals for low-carbon energy technologies at risk of shortages; EVs, wind and solar, and lighting the applications of most concern

November 04, 2013

A new European Joint Research Centre (JRC) study looking into the supply of raw materials for the manufacture of low-carbon energy technologies found that eight metals were at high risk of shortages. The applications, i.e. technologies, of particular concern as a result are electric vehicles, wind and solar energy, and lighting. The risk arises from EU dependency on imports, growing demand worldwide and geopolitical reasons.

The study builds on a 2011 effort which looked into the six key applications of the Strategic Energy Technology (SET) Plan: wind, solar, nuclear fission, bioenergy, carbon capture and storage (CCS) and the electricity grid. In the new study, these were re-assessed and considered along with 11 other technologies—including fuel cells, electricity storage, electric vehicles and lighting—treated in the new report, this time evaluated on the expected supplies of the metals and not on the current situation as in the first report.

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Chrysler Group in 5-year, $18.2M partnership with McMaster University to develop advanced electric and hybrid powertrains; funding from Canadian Government

October 25, 2013

Chrysler Group LLC has entered a 5-year, $18.2-million partnership with McMaster University in Ontario, Canada, with funding support from the Canadian government, to develop next-generation, energy-efficient, high-performance electrified powertrains and powertrain components. For McMaster, the project partnership is one of three new partnerships with Chrysler, the federal government and other auto industry leaders worth a combined $24 million.

Chrysler Group will invest $9.25 million in cash and in-kind contributions, with an additional $8.93 million coming from the Natural Sciences and Engineering Research Council of Canada (NSERC), the lead agency within Automotive Partnership Canada (APC), an initiative that supports industry research at Canadian universities and government laboratories.

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BRUSA picks up awards at eCarTec Munich 2013 for wireless charging and electric truck; synchronous motor shortlisted

October 17, 2013

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The two components of BRUSA’s Inductive Charging System. Click to enlarge.

BRUSA won two of the eCarTec Awards presented at eCarTec Munich 2013 trade fair. BRUSA’s new ICS inductive charging system and the E-FORCE electric truck won in their particular categories, while BRUSA’s synchronous motor was shortlisted in the category of “Drive Technology, System Electrics, Testing Systems”.

BRUSA Inductive Charging System. BRUSA’s ICS was the winner in the category “Energy, Infrastructure, Connection Technology”. The new system only comprises a floor and vehicle plate—the required power electronics are integrated.

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