Product

Six degrees of freedom

A total of six degrees of freedom enable the reproduction of realistic vehicle and road
conditions for tires.

• Flat belt system with belt speed control
• Flat belt mechanics with steer angle control (with dynamic tire stand) and vertical
  vibration (option)
• Dynamic tire stand with camber angle, tire speed and load force control
• Static tire stand with steer angle, camber angle, tire speed and load force control

All six degrees of freedom can be controlled so that combination tests can be performed.

Flat belt system

• The most disturbing aspect of tire testing with a steel belt system is the bending of
  steel belt at the tire patch under high load conditions and belt track drift when the tire
  generates large side force. The flat belt system is designed to minimize these effects
  and reproduce stiff road conditions.
• The flat belt system enables various tire slip tests at high speeds.

Flat belt mechanics

• The flat belt mechanics moves the flat belt system and allows dynamic steering of
  the flat belt. Vertical vibration movement is also offered as an option. The flat belt
  mechanics is used with the dynamic tire stand.

Movement of the dynamic tire stand

• The dynamic tire stand is designed for changing tire conditions dynamically.
• Full braking and spinning testing can be controlled dynamically, reproducing almost
  any spinning conditions.
• The camber angle can be controlled dynamically. When this control is combined
  with the steering control of the flat belt mechanics, almost any dynamic driving
  conditions can be reproduced.

Safe operation

• Belt crack detection sensors ensure safe operation.
• Early detection of a crack may make it possible to salvage a damaged steel belt.

Air bearing technology

• The unique air bearing developed by A&D enables the optimum design for the high
  load conditions required for tire testing.
• The porous carbon material and an optimized airflow path offer the best belt levitation
  characteristics. Belt sink under load is less than 50μm.
• The air bearing is made of carbon material, which prevents damage to the steel belt
  and offers safety and durability.

Precise force measurement with the Model Based Sensor (MBS)

• Shear strain gauges detect shared force at the optimized spring element.
• Gauge signals are directly converted to digital signals and the 6 components of force
  are digitally calculated in the real-time DSP system.
• The model-based digital signal processing approach minimizes cross talk errors and
  achieves world-class measurement accuracy and robustness. Because of this approach,
  the sensor is called the Model Based Sensor (MBS).

Compact size

• Belt Size: (W) 1160 mm × (D) 610 mm × (H) 600 mm
• The small and light design reduces the system requirements for hydraulic pressure, which means that the hydraulic pressure source and other onsite equipment can be small. This feature offers increased flexibility during installation and reduced maintenance.