Description

When the 4×2 loading facility (eddy current brake) is added to the standard inertia dynamometer it enables the user to either put a fixed load on the brake or to hold the vehicle at a certain rpm, or as perform a controlled sweep test (ramp test), where the speed is gradually increased while the power and sensor readings are recorded. This is especially handy when a problem is encountered at a specific rpm or load condition. Where applicable, the loading facility can also be used to do engine mapping. Our latest addition to the loading, enables the user to “add weight” to a standard inertia test by adding additional load. This is a very convenient option, especially when you are testing more powerfull cars and it gives you a bit more ability before you need to upgrade to the High-Speed single roller type dyno.

• Roller/Drum:
  • Diameter: 355 mm
  • Weight: ±1500 kg
  • Inertia: 32 kg m²
  • Linear Mass: ±1100 kg
  • Maximum Wheel Track: 2100 mm
  • Maximum Allowable Speed: 250 km/h
  • Power Absorption:
    • 4X2: 750 kW (1000 Hp)
    • 4X4: 1500 kW, depending on wheel spin
  • Maximum Tractive Effort: 9800 N, depending on wheel spin
  • Rollers: Knurled for enhanced grip

Frame Specifications:

• Height:
  • Inertia: 460 mm
  • Loading: 570 mm
• Width: 1200 mm
• Length:
  • Without Loading: 2550 mm
  • With Loading: 3310 mm
• Weight:
  • Inertia: 1690 kg
  • Loading Included: 2040 kg

Retarder Unit:

• Maximum Allowable Speed: 250 km/h
• Power Absorption: 500 kW (4X2)
• Maximum Torque: 1600 Nm (4X2)
• Maximum Tractive Effort: 9000 N (4X2)
• Continuous Absorption with Cooling Fan: ±30% of maximum ratings

Dynamometer Control Unit – Retarder Unit:

• Speed Stability: ±1 km/h
• Power Requirement: 220 V, 25A
• Load Stability: ±0,1 kW
• Sensor Accuracy:
  • Temperature: 0,5%
  • Pressure: 0,5%