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Anthony Best Dynamics has launched its SR60 Torus steering robot, designed to decrease test setup time, aid vehicle operation and enhance the safety of vehicle handling tests.

The SR60 Torus combines a large-diameter hollow centre with the ability to clamp the unit to an existing steering wheel, keeping the airbag in place.

The airbag can safely deploy through the centre of the wheel without the robot motor becoming detached from the steering wheel.

The Torus design also allows the driver access to the steering-wheel-mounted controls.

The SR60 Torus motor uses a direct-drive continuous-rotation brushless motor with low-friction bearing and the system requires no gears or clutches.

The vehicle can be driven manually between tests using the integrated steering rim.

The performance envelope of the motor is similar to ABD’s conventional SR60 motor and is designed to exceed the specification requirements of NHTSA’s fishhook and FMVSS126 tests that require a maximum of 60Nm at1200deg/sec.

The Torus motor is compatible with ABD’s Omni and Mono in-vehicle controllers and can be used in conjunction with ABD’s brake, accelerator, clutch and gear-change robots.

The SR60 Torus model and the existing SR60 model both complement the SR30 steering robot, designed to match the performance of a typical human driver.

The peak torques of the SR60 Torus and SR60 robots are approximately twice that of the SR30 and are suitable for use in heavy-duty applications that may require high-speed and torque, such as the NHTSA rollover and stability-control tests.

ABD can offer steering robots with torque outputs up to 150Nm that can be engineered to suit different customer requirements.

The SR60 Torus is designed to apply accurate and repeatable inputs to a vehicle’s steering system for testing its transient handling behaviour on the test track or for evaluating the steering system.

A range of test profiles can be played out to the vehicle’s steering system with precise control, making direct comparisons between vehicles easy.

A database is used to store the test definitions and specific vehicle information for each vehicle tested, and to keep track of stored results.

The software enables the driver to define and run new tests quickly and easily by choosing from a library of standard tests designed to meet NHTSA and ISO 7401 requirements.

These include single-sine, sine-sweep, step and ramp inputs.

Test profiles can be recorded from direct driver input using a learn mode, or played out from data stored in an ASCII file.

The robot can also follow an external analogue voltage input.

The SR60 Torus steering robot can also be used with ABD’s Path Following option, which uses a GPS-corrected motion pack to give real-time feedback on vehicle position and heading, enabling the robot to control the vehicle to follow a predefined path.

Anthony Best Dynamics

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