EV Powertrain Systems

ePropelled has developed an innovative EV powertrain system based on our patented technology that enables much greater efficiency. This technology has already been demonstrated in a vehicle with a 60 kW continuous/100 kW peak system. The design is highly scalable so it can be applied to a wide range of EVs from two- and three-wheelers to automobiles and trucks.

eDTS

ePropelled’s Dynamic Torque Switching™ (eDTS ) technology uses an innovative software-controlled reconfigurable propulsion motor that is the foundation of a complete EV powertrain system. The eDTS system allows the electric motor to provide high torque at low speeds without drawing high current from the batteries. It also provides high speeds at low torque levels without using field weakening, thereby increasing the efficiencies throughout. Unlike conventional motors which have one high efficiency “sweet spot,” the eDTS system creates multiple modes, each with high efficiency. Increasing power efficiency by at least 15% will allow manufacturers to reduce the size and cost of their battery packs or extend the range, making EVs more profitable and affordable.

This technology is a drive system concept that allows a single electric machine to dynamically change between several modes to provide a much broader range of high efficiencies for low power consumption. The control system uses adaptive shift maps, allowing the transition between the modes to take place seamlessly to deliver optimum torque, speed, and efficiency characteristics in real time.

The system comprises three main components:

  • The eDTS motor is a brushless permanent magnet synchronous machine
  • The power electronics drive provides the software control and the inverter
  • The matrix switch ties these two components together by changing how the the motor windings are charged

The Future of Electric Propulsion

Our technology produces a much more energy-efficient method of electric propulsion that increases the travel range and life expectancy of the battery pack or allows for smaller batteries for the same range. This is a major improvement to today’s capabilities, and it better meets the expectations of the market, manufacturers, and consumers. The eDTS system results in:

  •  A reduction of at least 15% in system-level energy consumption
  •  Vehicles lasting longer between charges
  •  Lower costs due to smaller batteries and better efficiencies

The “e” in eDTS represents the technology’s flexible nature. eDTS is electric, environmentally friendly, economical, efficient, and emerging. It’s a truly versatile solution that can be used in a broad range of EVs.

Learn How eDTS Improves Performance

David Hudson and Nabeel Shirazee present at Cenex LCV in September 2021 in this 15 minute video

 

Let’s Talk

If you’re interested in learning more about ePropelled and our eDTS technology, please fill out the form below and one of our EV team members will be in touch with you shortly.