The WWU Hybrid Bus Team is designing a low floor, modular bus, capable of  a supporting a variety of applications.  The goals are to reduce fuel use and operating costs while improving driver control and passenger comfort.  Plans are to use sustainable materials with a high strength-to-weight ratio for chassis, body and interior components, combined with an aerodynamic body design.  The powertrain will utilize a diesel-electric powersplit hybrid system, which will allow both the diesel engine and electric motors to propel the bus. Non-petroleum based fuels are targeted for the IC engine. 


Base Specifications
· Length = 24 ft (7.3 m)
· Width = 8 ft (2.4 m)
· Height = 8.5 ft (2.6 m)
· Curb Weight = 8000 lbs (3630 kg)
· Gross Vehicle Weight = 12300 lbs (5580 kg)

      Modular Seating Capability
Ambulatory + Wheelchair  + Driver
16      +       0           +    1
12      +       2           +    1
7      +       4           +    1



The team is currently targeting a thermoplastic composite material called Twintex.  The material contains comingled strands of fiberglass and polypropylene (PP) woven together into a fabric. Compared to other composite materials such as carbon fiber, Twintex is more readily recyclable, and a more cost effective solution.



Hybrid Bus Project Brochure


Page Updated 11.22.2017