Read to Know About Vehicle Dynamic Testing

Auto makers, brands, and other regulatory bodies often need to evaluate new vehicles on varied important grounds, including safety. Before being launched, or to probe an accident or collision, results of various tests are considered. One of the important aspects is vehicle dynamics testing. All the measurements taken by these testing’s are meant for objective evaluation. With the help of these objective evaluations, it is possible to determine even the smallest steps in various developments of motor vehicles. In order to do this, many different types of sensors are also used, so that various actions of the drivers can be captured.

Let us try to understand how few important measurements are taken during the vehicle dynamic testing.

Measurement steering wheel

This measurement steering wheel is generally mounted between steering shaft and steering wheel.

This wheel will measure the following:

• Steering angle
• Steering torque
• Steering speed

Mounting of this measurement steering wheel can be easy due to its central aperture. By using a suitable adapter, connection can be made with steering shaft gearing, which can be produced as per any specification.

In order to measure steering torque, few strain gauges are used, while steering angle and steering speed can be measured by using one noncontact optical encoder, that has a resolution of 7200 number of pulses per rotation.

This measurement steering wheel comes in different models:

• 50 newton meter version meant for passenger cars
• 250 newton-meter version meant for trucks.

Pitch/roll angle measurement

In order to determine the pitch and roll angle, distance measurements are taken at 3 select points of the body of vehicle against the road which may be using a laser sensor.

Pitch can be defined as angle between longitudinal axis of the vehicle and projection of vehicle to the road, while roll can be defined as angle between the transversal axis of vehicle and its total projection to road.

Both pitch and roll are calculated as functions of arc tangent by using trigonometric distance relationships.

Vehicle dynamics testing

SEA has got all necessary expertise and the equipment for doing all these testing. They will employ the various knowledges that their professionals have got in this field over the years.

Their division of vehicle dynamics is well recognized internationally. SEA is one of the leaders in all kind of vehicle testing, handling of dynamics analysis and also for making computer simulation/modeling.

Whether you want to do regulatory safety testing, handling or performance, you can rely upon SEA as an undisputed provider of all kinds of custom testing solutions.