Tevva’s third-generation 7.5t battery electric vehicle (BEV)
Tevva trucks are driven by next-generation electric traction motors. These motors, developed by Advanced Electric Machines in partnership with Tevva over four years, have multiple benefits over earlier, more commonly found designs.
No rare-earth magnets. Rare-earth magnets are found in most electric motors in use today, but they have four significant drawbacks.
Tevva’s batteries and battery management system are designed and manufactured in-house. Tevva batteries are certified to comply with United Nations Economic Commission for Europe (UNECE) Regulation 38.3 and in addition the traction battery and high voltage distribution system independently tested and certified to comply with UNECE Regulation 100 Rev 2 parts 1 and 2.
These test simulate a 30mph impact, a 50-mile drive over cobbled roads, being crushed under the weight of 10 cars, before finally, the battery is placed over a pan of burning fuel at 1000 degrees for two full minutes.
Tevva batteries employ Lithium Iron Phosphate chemistry, giving long life, extreme thermal stability – thus avoiding the use of Cobalt with its attendant ethical challenges.
The Fuel Cell is liberator of the battery, not its nemesis.
Tevva’s Fuel Cell Range Extender Technology (REX) is unique. The Tevva technical design philosophy is that hydrogen and batteries are not alternatives to each other but partners in achieving an ideal solution. Batteries are the most efficient, lowest cost and lowest carbon option, but they are heavy and relatively slow to re-charge. Hydrogen is less cost efficient and less carbon efficient, but extremely lightweight and fast to replenish.
Tevva’s Fuel Cell REX operates only as much as is needed to supplement the grid-charged battery on any given day. It is designed to be controlled by software that predicts the daily energy need and then (if needed) runs the fuel cell at a constant, efficient power setting to feed the necessary additional energy into the battery over the course of the working day.
Tevva’s software, controls and links all the technologies on board the Tevva Truck and captures all key vehicle performance data points.
As a leading OEM in Hydrogen Electric Trucks, Tevva has developed an overall vehicle control strategy. Tevva is focused on creating timely and robust technology to meet automotive industry functional safety standards.