Daimler AG, Wörth, Deutschland

Commercial vehicles 4-wheel test bench Road to Rig (R2R)

Project Facts

Year
2016

Duration
3 years

Competencies
Turnkey engineering, construction, testing technology, project mangement

  • First study March 2014 to July 2014 (various revisions in the following years)
  • Start of the planning: November 2016
  • Construction period: 19th october 2017 (groundbreaking) to 1st august 2020 (commissioning DTAG)/ official inauguration: 9th january 2020
  • Investition: approx. 20 million euros
  • Building dimensions: 42 m x 22 m x 17 m (l x w x h)
  • Height of the exhaust chimney: 24 m
  • Basement level: -5 m
  • Trapezoidal sheet facade
  • Complex foundation with approx. 100 bored piles and a length of 15 m
  • 3 transformers with 4.2 MW rated output, supply by 20 kV line
  • 3 propane-chillers with a refrigerating capacity of 600 kW each
  • Central fuel tank of 10,000 l Diesel
  • 16 cm thermal insulation shell in the test room 

Roller performance:

  • Performance: front axle: 2 x 260 kW, rear axle: 2 x 600 kW
  • Torque: front axle 2 x 20 kNm, rear axle 2 x 50 kNm
  • Traction (total): 140 kN
  • Speed: 130 km/h

Configuration:

  • Wheelbase: infinitely adjustable 3,5 – 8 m
  • Axle loads, max: front axle 12 t, rear axle 20 t (tandem: 26 t) rolldiameter: 3 m
  • Loading system: directly driven 4-whell roll
  • Driven axes: up to 8x8 vehicle

Unit under test:

  • Speed: 130 km/h
  • Engine power: 600 kW
  • Total mass: 40 t

Climate:

  • Temperature: -7 °C bis + 48 °C
  • Humidity: 20 % bis 70 % r.F.
  • Air volume flow: 810,000 m³/h
  • Air velocity: 90 km/h
  • Changeable nozzle: 9/16 m²