SubZero Solution
SubZero Solution
SZS is a Patent pending energy storage system with focus on alternative energy sources, solar panels and hydrogen. A system and a method for control of electric vehicle traction battery preconditioning.
Electric vehicles of today are often – if not always – outfitted with a preconditioning unit configured to regulate the temperature of the traction battery of the vehicle.
A traction battery operating at suboptimal temperature has its capacity, as well as its expected lifetime, greatly reduced. Thus, diesel powered preconditioned units are often provided to regulate the temperature of the traction battery. Using an auxiliary battery and predicting the charge rate of the battery, as well as the power consumption of the preconditioning unit and any other auxiliary systems connected to the auxiliary battery, allows for better control of the preconditioning.
FleetHeat
Heat pumps in combination with solar power is a more complex technical system and thereby require smart control of the bus, both at the depot but also when operating. The FleetHeat with its upgraded software is able to manage and monitor both a solar panel solution and the CO2 heat pump system.
The system could also be combined by a thermal energy storage, PCM-material, that could be managed by the software of FleetHeat at the depot. By charging the thermal energy storage with the CO2 heat pump and applying the smart preheater of electrical buses would bring the driving range up even further. In combination with solar power the electric buses for public city transportation will be the best solution for the future.
