ie bus: Leading-edge technology and European componentry

ie bus: Leading-edge technology and European componentry

Irizar brings emissions-free urban mobility to Coach and Bus UK 17, with its new 10.85-metre ie bus undertaking demonstration runs outside the halls.


The two-door all-electric bus has a total capacity of 60 passengers (including 28 seated and one wheelchair user) and utilises a robust and light bolted aluminium structure.


Going electric with Irizar does not mean taking a step into the unknown with component suppliers. Irizar’s ie bus features a premium quality all-European driveline developed at the company’s own technology centre in Spain. It includes a powerful Siemens Elfa-2 DB2016 180 kW motor which produces 1500 Nm of torque, driving through a ZF AV 132 II/80 drive axle, and running on Koni shock absorbers and Vibracoustic air-springs.


Foundation braking is provided by Knorr discs and calipers controlled by Wabco ECAS/EBS3 + ABS, while the steering system is a ZF Servocom 8089, and the steer axle is ZF’s RL EC, featuring independent suspension.


Wheels are Alcoa’s premium Durabite Black Tag 8.25×22.5, shod with Michelin Incity HLZ 275/70 R22.5 tyres.


The recyclable Sodium Nickel batteries have a capacity of 329 kW/h, and charging time is around seven hours using Irizar’s customised energy storage management and depot smart-charging system.


Specified for the British market, equipment on the show vehicle includes: Masats electric doors and wheelchair ramp, separate Hispacold heating systems for the driver and passengers with pre-heating during battery charging, Mckenna Bros destination equipment to front, side and rear, and pre-installed CCTV and reversing cameras. Isri Civic V2 passenger seats are fitted, while the driver gets a Chapman 57075/PB/922510/80004 seat.


Step heights are 320 mm (front) and 340 mm (centre), reducing to 250 mm and 270 mm respectively with the suspension in kneeling mode.


Irizar electric buses have been running successfully in London since 2015, and for even longer in continental Europe. Virtually silent in operation, they have a very low carbon footprint of 8.45 g CO2 per passenger km, and each bus will save about 800 tonnes of CO2 emissions compared to a diesel vehicle during its service life.