Multiple patents granted for in-wheel electric drive

Protean Electric, a specialist in advanced in-wheel motors for the automotive industry, has been awarded 17 patents for the unique technology and design of its Protean Drive system. More than 60 additional patent applications have been filed internationally and with specific countries in North America, Europe and Asia. Protean Electric chairman and CEO Bob Purcell says his company’s in-wheel motor design is unlike conventional motors or combustion powertrains with electric motors added. "We started with a c
March 22, 2012 Read time: 2 mins

4173 Protean Electric, a specialist in advanced in-wheel motors for the automotive industry, has been awarded 17 patents for the unique technology and design of its Protean Drive system. More than 60 additional patent applications have been filed internationally and with specific countries in North America, Europe and Asia.

Protean Electric chairman and CEO Bob Purcell says his company’s in-wheel motor design is unlike conventional motors or combustion powertrains with electric motors added. "We started with a clean sheet and designed motors specifically for in-wheel applications," he said.

Protean claims its in-wheel motors have the highest torque density of any of today's leading electric propulsion systems. Each in-wheel motor can deliver 81 kW (110 hp) and 800 Nm (590 lb-ft), yet weighs only 31 kg (68 lbs.) and is sized to fit within the space of a conventional 18-inch road wheel. It is also claimed the drive also has superior regenerative braking capabilities, which allow up to 85 per cent of the available kinetic energy to be recovered during braking.

The company states its Protean Drive can increase fuel economy by over 30 per cent depending on the battery size and driving cycle. It is also powerful enough to be the only source for traction on a variety of vehicles.

Patents protecting Protean's innovations in technology and design already have been awarded in the United Kingdom and the United States. The company has filed additional patents in Europe, China, Malaysia, Japan, and India.

For more information on companies in this article

Related Content

  • Foldable EV unveiled
    August 16, 2013
    A group of scientists from Korea Advanced Institute of Science and Technology (KAIST) has developed what is claimed to be the country’s first foldable electric vehicle (EV), the school has announced. Developed by Seo In-soo and his research team, the Armadillo-T uses a 13.6 kWh battery and four independent in-wheel motors that enable it to reach 60 kilometres per hour and travel approximately 100 kilometres on a single charge. The small, battery-powered vehicle weighs less than 500 kilograms and measures 2.
    Read More
  • Honda launches electric scooter
    April 17, 2012
    Honda is introducing its new EV-neo electric scooter in Europe. The scooter was launched with a demonstration and short test ride at Honda’s innovative Safety Centre, based at the Montesa Honda factory in Barcelona, Spain. Initially introduced as a concept model at the 2009 Tokyo Motorshow, the EV-neo attracted interest and lease sales of the model started in Japan in April 2011. The scooter is primarily aimed at use by delivery services. However, the EV-neo can also provide for recreational use as well as
    Read More
  • 39 million micro-hybrids by 2017
    March 14, 2012
    Micro-hybrids will grow nearly eight-fold to 39 million vehicles in 2017 and create a $6.9 billion market for energy storage devices as the fuel-saving alternative technology finds ready adoption, driven by stricter emission standards.
    Read More
  • Volvo to start selling heavy hybrid trucks
    February 2, 2012
    Volvo Trucks has announced that it is starting to sell heavy hybrid trucks following a series of comprehensive field tests. In June, limited series production of approximately 100 hybrid trucks will get under way.
    Read More

Highlighted Content