Examples of some of our previous projects are shown below. Help us make your project a success story.
High Voltage Applications
Stafl Systems provided the electronic control system and BMS for a mining vehicle. Due to the operational environment, this vehicle is continously exposed to extremely challenging and corrosive conditions. Due to the high duty cycle (20-22 hours per day), one of the challenges to solve was long-term cell-to-cell balance. Without long rest periods to perform balancing, traditional passive balancing techniques were insufficient. In this case, an active cell balancing architecture was used to enable continous cell balancing as needed across the charge and discharge cycle.
All-Electric SupercarWe designed and developed the control system and BMS for the world's fastest street-legal electric car. The powertrain includes two motor cores and inverters operating at 800V and capable of a maximum power output of 550kW. The vehicle architecture utilized a distributed battery pack consisting of various sub-packs connected in series. This presented a number of challenges with a distributed pre-charge which were overcome with innovative hardware and software techniques.
Solar-Electric AircraftWith partner companies, we designed the battery, BMS, charge control system and hybrid control system for a solar powered electric aircraft. The weight and redundancy challenges present in an aircraft application presetned unique tradeoffs that needed to be studied and carefully determined.
After months of ground testing, it was very rewarding to see the system take flight and perform a number of arial manueavers to test the aerodynamic design and powertrain.
Electric Semi-TruckAs part of a large vehicle development program, Stafl Systems consulted on the powertrain design, control strategy and battery management system for a large Class 8 semi-truck. The design included a 300 kWh 800V liquid-cooled battery system that drove 6 drive inverters.
Managing up to 1 MW of traction power safety presented a number of challenges, including safely balancing power flow between the inverters and auxiliary power sources and systems on the vehicle.