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Prodrive Developing Flexible DC-DC Converter

Prodrive is leading a consortium of companies to develop a new technology for electric and hybrid electric vehicles that will reduce the weight and space taken by the electrical power system.

The 3 year project to develop a flexible DC-DC converter is supported by investment from the government-backed Technology Strategy Board. Prodrive is joined by the University of Manchester, Raytheon Systems Ltd, SciSys, International Transformers and Tata Motors European Technical centre. The first year of the project will be devoted to fundamental research, followed by two years of application and development, leading to a driveable demonstration car by the end of year three; market introduction is said to be 5-7 years away.

Current practice is to integrate DC-DC converters into the power management system to step down or step up the battery voltage to meet the needs of different devices such as traction motors, cabin electrical systems, fuel cell stacks or supercapacitors.   In complex architectures this requires several converters.  A single, flexible converter will save cost, weight and package space, enabling vehicle manufacturers to move more easily to the next generation of sophisticated plug-in and range-extended hybrids.

Existing hybrids, such as the Toyota Prius, need one DC-DC converter for the traction motor and another for the vehicle’s 12 volt system. In future, there will be further voltage steps for supercapacitors or fuel cells; it isn’t viable to keep adding extra converters for every additional voltage. Having worked hard to reduce the cost, weight and size of battery packs and motors on hybrid vehicles, manufacturers are clearly unwilling to see those gains swallowed up by growth in the power management hardware.

Solving this problem will require the development of fundamentally new technology; The flexible converter will have to be capable of handling multiple voltages simultaneously on both the input and output sides, while achieving conversion efficiencies equal to the best single-range converters currently available.

Prodrive is building a reputation as a specialist in the development and integration of electric and flywheel hybrid systems and future powertrains.[wzslider height=”400″ lightbox=”true”]

Jun 23, 2010Blagojce Krivevski
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Blagojce Krivevski

Blagojce Krivevski is physicist and green technology lover. Keep in touch with Blagojce through his email, web site, Twitter, Linkedin, Facebook and Google+.

June 23, 2010 TechnologyDC-DC Converter, electric vehicles, hybrid electric vehicles, Prodrive
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