Vanner has introduced “Independence”, a ingle-belt electric system for CNG and diesel buses and coaches that completely decouples accessories from the engine. Independence increases efficiencies by operating electric powered accessories—such as the alternator, air conditioning, power steering, and air compressors—independently of engine speed to reduce fuel use and emissions.
It also lowers NVH for added passenger comfort and reduces operational and maintenance costs. Independence features Vanner’s Model Based Battery Monitoring (MBBM) that can dynamically charge the batteries and provide a low SOC disconnect feature.
Independence features a single-belt, high-voltage 45 kW permanent magnet generator that enables the replacement of conventional mechanical accessories with more efficient electric accessories managed by Vanner’s Exportable Power Inverter-Dual (VEPI-Dual) and Hybrid Beltless Alternators (HBAs).
The VEPI-Dual provides 230VAC power management and functionality to power fully electric A/C system, electric water heating unit, and electric oil-less air compressor. Vanner’s Hybrid Beltless Alternators (HBAs) supply and distribute 28VDC solid-state power for the cooling system, electric power steering, electric doors, and low voltage hotel loads.