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Steering Robot Test System
AB Dynamics has the widest range of steering robots in the world; whatever your requirements are, we can offer you the best solution. Our robots are the industry reference point – the 25 most successful vehicle manufacturers in the world use them
A steering robot applies accurate and repeatable inputs to a vehicles steering, allowing the test engineer to completely remove the variability that comes from a human driver. The range includes robots specifically designed for vehicle dynamics, durability testing and ADAS development, with models that exceed the requirements for tests such as the NHTSA Fishhook, FMVSS 126 / Reg13H sine-dwell and many other industry standards. Our steering robots are engineered to the highest standards to ensure that they are reliable - the first ever robot was supplied in 1997 and is still in use today.
Highly repeatable, perfectly accurate
The graph shows raw, unfiltered steering angle data from a sine-sweep test, performed six times with the runs overlaid. AB Dynamics advanced motion control technology guarantees total repeatability, with a perfect blending of amplitude and frequency.
Direct-drive motors
The SR35, SR60, SR60 Torus and SR150 use advanced direct-drive motors which require no gears or clutch. As a result, they are quieter, smoother and have the lowest possible inertia*.

* SR35 rotational inertia is 0.0074kgm2 excluding steering wheel.
Airbag compatible
Several of our steering robots have a key feature – the hole in the middle. This allows the robot to be attached to the vehicles steering wheel without disabling or removing the airbag. The hollow-centre range includes the following models: SR15, SR15 Orbit, SR60 Orbit, SR60 Torus. Our robots have been tested to ensure they allow the safe deployment of a typical steering wheel airbag, as shown in this video.
Testing the Torus with an airbag deployment by ABD
Technical Information
Model SR15 SR15 Orbit SR35 SR60 SR60 Orbit SR60 Torus SR150
Direct drive motor
Hollow for use with
airbag in place
Max torque (Short duration) 20Nm at 100/s 43Nm at 850/s 70Nm at 580/s 85Nm at 100/s 160Nm at 500/s
Rated torque 15Nm at 500/s 35Nm at 1300/s 60Nm at 1300/s 60Nm at 1500/s 150Nm at 550/s
Max velocity 1000/s at up to 6Nm 2500/s at up to 5Nm 2500/s at up to 10Nm 2500/s (est)at up to 10Nm 2500/s at up to 10Nm 1500/s at up to 20Nm
Motor mass 5.6kg 5kg 9kg 12.5kg 9kg 10.5kg 19kg
Our Range of Steering Robots
SR15
Low-cost geared model
Ideal for ADAS testing and driverless use
20Nm maximum torque
The SR15 was designed to meet the requirement for a low-cost steering robot which could easily attach to a vehicles steering wheel without removing the airbag. Its a very popular choice for ADAS testing and is also well-suited to durability applications.
SR15 Orbit
Geared motor which fits behind steering wheel
Improved driver ergonomics compared to SR15
20Nm maximum torque
Using the same lightweight motor as the SR15, combined with the split-gear design of the SR60 Orbit, this model can be installed behind the steering wheel rim for excellent driver ergonomics, or in front of the rim where the dash or stalks would otherwise interfere.
SR35
Ultra-low inertia and friction
Replaces the SR30 model
43Nm maximum torque
The SR35 replaces the hugely successful SR30 - the original steering robot. It uses a lighter, thinner version of the SR60 motor to provide ample performance for typical driving scenarios and vehicle dynamics tests (but isnt suited to fishhook or sine-dwell testing). It has the lowest rotational inertia of our range.
SR60
Ideal for fishhook, sine-dwell and other high-torque tests
Best-selling model
70Nm maximum torque
Designed specifically for high-power tests such as the fishhook and sine-dwell, the SR60 is our best-seller, used worldwide by OEMs and test houses. With a maximum speed of over 2500/s, the SR60 can apply steering inputs that no driver could do.
SR60 Orbit
Installs without removing airbag
Similar performance to SR60
Ideal for ESC testing
The SR60 Orbit offers a similar performance to the SR60 but can be installed in vehicles without removing the steering wheel airbag. As with any geared steering robot, it is not as quiet or smooth as our range of direct-drive motors.
SR60 Torus
Unique, patented design with direct-drive hollow motor
Ideal for fishhook, sine-dwell and other high-torque tests
85Nm peak torque
Perhaps the ultimate steering robot, the Torus offers the best of both worlds. Its hollow centre means that it can be installed without removing the airbag, while also being quieter and smoother than any geared robot. The Torus is protected by international patents.
SR150
Designed for steering homologation tests in trucks and buses
160Nm maximum torque
The SR150 was designed for testing power-failure situations in trucks and buses – a requirement for homologation – meaning that is has the highest torque of any AB Dynamics robot. It can also be used for a wide range of other handling tests.
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