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

  • Metro to slash greenhouse gas in Washington
    May 1, 2019
    The Washington Metropolitan Area Transit Authority (Metro) has introduced a five-year Energy Action Plan to reduce energy usage and cut greenhouse gas emissions in the US capital. Once fully implemented, it is expected to net $16 million annually in energy cost savings and another $13 million in savings on operations and maintenance expenses by 2025. The plan is part of a commitment by Metro to invest $65m from its capital budget by 2025 in energy efficiency technology, modernise operations and redu
    Read More
  • Electronic toll collection: Change is in the air
    November 7, 2024
    Trends in technology plus users’ comfort in adopting new advances indicate that the environment for a new electronic toll collection architecture is evolving. Hal Worrall considers what this might look like
    Read More
  • Multi-wheeled vehicles brake system
    July 4, 2012
    Mico has launched a full-power brake system with ABS and traction control to provide added control for multi-wheeled vehicles operated both on and off-highway. The company claims the system enhances vehicle stability while decreasing stopping distances and improving acceleration under low traction conditions. As many as eight wheels can be controlled independently of the others, which makes the system easily adaptable to four-, six- and eight-wheeled vehicles. The electronic control unit (ECU) monitors whe
    Read More
  • The need to accelerate systems standardisation
    January 31, 2012
    While the US has achieved an appreciable level of success when it comes to implementation of standards-based systems at the urban and intersection control levels, the overall standards implementation effort is not progressing at anywhere near a level commensurate with the size of the country and its population, says Christy Peebles, business unit manager with Siemens Industry, Inc.'s Mobility Division. She attributes the situation to a number of factors: "There's a big element of 'Not Invented Here' syndro
    Read More

Highlighted Content