We deliver uncompromising power in heavy-duty frequent-stop drive cycles. We have designed our own motor, motor controller, clutchless transmission, and vehicle dynamics software. Wrightspeed’s patented technology helps reduce fuel consumption, emissions, and noise pollution. And, with fewer moving parts and drastically reduced brake wear, maintenance costs also go down. That’s why we were recognized by the World Economic Foundation as a 2016 Technology Pioneer.
GTD™ Power Unit
The familiar roar of a diesel engine accelerating from a stop becomes only a memory with a Wrightspeed powertrain. The GTD™ (Geared Traction Drive) delivers power to the wheels exclusively through a whisper-quiet electric motor – combustion power never drives the wheels.
Our sophisticated four-speed clutchless gearbox uses software controls in place of heavy and complex traditional transmission components, saving on weight while delivering an exceptional range of power and speed. The gearbox magnifies the already high torque of the electric motors for brisk starts, even on hills when fully loaded, and also allows efficient cruising speed for highway segments. Unlike some EV powertrains, the GTD™ delivers equal or greater power to the wheels as the diesel piston-engine systems it displaces.
Wrightspeed’s proprietary battery system was designed with maximum flexibility in mind. Our system features a modular architecture, which enables distributed packaging. This means that battery packs can be tailored to fit into the available space on buses, refuse trucks, semi-tractors, and delivery vehicles, among others.
Our battery system is compatible with multiple battery chemistries (LTO, LFP, or NCA), enabling battery solutions for various levels of hybrid electric range, or full EV operation. In addition, our battery management system (BMS) supports 400V and 700V architectures, to accommodate different vehicle applications.
In most cases fleet managers actually want less rapid acceleration than we could deliver, if asked. A certain amount of moderation improves operator comfort and control. We can configure the appropriate speed and acceleration to suit each particular application.
But that’s only the beginning. Our patented Vehicle Dynamics Control System (VDCS) controls each GTD™ separately, optimizing slip rate for ultimate traction on any surface, all the time. It’s a bit like combining AWD, ABS, and ESC into one synchronized system for braking, stability, acceleration, and handling. Finally, the power to do what you want.
Range Extension Engine Modules
We offer customers range-extended EV operation through the integration of a small-displacement piston engine. The engine’s only job is spinning a generator to recharge the battery packs; it provides no mechanical propulsion to the wheels.
Today, we offer a fuel-efficient diesel-powered range extender, which enables continuity of diesel infrastructure for our fleet customers. We will soon be offering a CNG-powered range extender option as well. In the future, we will deliver a compact turbine engine solution for additional fuel savings and multi-fuel capability.