4WD test benches

4WD chassis dynamometers, single rollers, with connected axes, available in versions:

  • 500 mm rollers - maximum speed 330 km/h
  • 635 mm rollers - maximum speed 420 km/h
MAIN FEATURES

Discover the importance of roller diameter in an automotive test bench

Description

  • High-strength mechanical constructionwith 6/8 mm sheets.
  • Equipped with mechanical connection of axes front and rear with telescopic universal joint, disengageable
  • Two powerful eddy current brakes of 2,600 N each 
  • It offers as an accessory, the additional support and vehicle positioning rollers
  • Customer's choice of colour included (RAL scale).
  • It can be installed in the hole or podium (overlapping).
  • Powder-coated.
CONTROL SOFTWARE FEATURES SPORT DEVICES

The SportDevices DAQs systems model SP6 are the most advanced on the market. An evolved product, continuously updated according to the needs of our customers: Discover SportDevices SP6 DAQ system, which equip all SPORTDEVICES AWD dynamometers:

  • Free software updates and downloadable directly from the Sport Devices website.
  • Available test modes: Inertial, constant braking, ramp, road simulation, steady state, driving cycles.
  • It allows compare an unlimited number of curves read from the database, which is assigned a different colour. This makes it possible to evaluate changes and improvements before and after modifications. An automatic pointer measures the difference between the curves along the entire graph.
  • Calculate and display averages between tests or within a specific range.
  • Up to 3 screens in REAL-TIME (PC with dedicated graphics card required).
  • Correction factors: ISO1585, SAEJ1349, DIN70020, JISD1001, EC95-1, EWG 80/ 1269 (Also allows correction of curves according to air-intake temperature, via OBD interface or external probe).
  • Units of measurement for power (Kw,hp), torque (Kg *m, N*m) is user selectable.
  • Configurable estimated gear ratios: Engine caliper, OBDII / xDS / ECU, or estimation based on the vehicle's rev counter.
  • Fully configurable analogue channels, either scale/offset or using an interpolation table.
  • Connection High-speed Ethernet, CANBUS, Bluetooth (Optional), RS232.
  • Vehicle OBDII interface, integrated or external weather station.
  • Supports different models of exhaust analysers.
  • The system implements a closed-loop' brake control. It also works without a computer (remote control).
  • Remote control of accelerator actuator, clutch actuator, gearbox, fans etc. from PC software.
  • Several options to configure the calculation process of power to vehicle characteristics, such as:
    • Load cell deactivation during deceleration
    • Maximum clutch filter: allows the clutch to be released for some vehicles, optimising its management
  • Alarm function (channel supervision).
  • Interface available in 10 languagesincluding Italian.
DATA ACQUISITION
  • The Sport Devices SP6 control and acquisition system offers several channels (also under relay) dedicated to data acquisition from lambda, pressure and thermocouple probes; whether analogue or digital, system offers up to 24 channels in the standard version, expandable with external recorders up to 112 channels.
  • It can handle independently the ventilation systems in the test room, thanks to 6 controlled, configurable and independent outlets.
  • Up to 20 channels calculated by the user. The function as wheel slip (based on the engine revolution channel).
  • Target lambda correction and energy efficiency (on electric motors) can be automated.
EXECUTABLE TESTS
  • Power Measurements (At the wheel, at the drive shaft, dissipate).
  • Acceleration and Deceleration Test (To assess performance when the vehicle is subjected to external loads).
  • Road simulation (To check vehicle performance, including with diagnostic tools).
  • Inertial tests of acceleration and deceleration.
  • Step tests, constant revolutions, programmable tests as lap/circuit simulation (CSV file).
INSIGHTS

Additional information

Weight4,350 kg
Dimensions340 × 470 × 55 cm
Maximum measurable power

2,000 hp (1,000 hp per axle) version with 500 mm rollers
2,600 hp (1,300 hp per acce) version with 635 mm rollers

Maximum speed

330 km/h version with 500 mm rollers
420 km/h version with 635 mm rollers

Maximum load

3,000 kg (1,500 per axle)

Roller diameter

Two models available: 500 mm or 635 mm

Brake type (max. torque)

No. 2 brakes of 2,600 N each.

Pneumatic power supply

7 bars

Acquisition electronics

Model SP6

For installation purposes, the roller test bench requires:

  • 1 220V power supply
  • 1 400V power supply
  • Pneumatic supply 7 BAR minimum
  • Comes complete with power supply panel, which must be connected to the mains supply
  • Absorption of the bench max. 12 kW, to which must be added the absorption of the fan and any other consumers
  • A forklift with a minimum load capacity of 2,000 kg is required on delivery.