Automotive: Vehicle Dynamics

Accurately and reliably capturing measurements in vehicle dynamics tests can be stressful. Not only do the measurements need to be accurate, they often need to be synchronised with other measurements while being made available to some central acquisition system. This is further complicated when space restrictions prevent sensors being installed at the desired measurement point.

OxTS RT sensors have an established track record when it comes to solving these problems. These one-box solutions cleverly blend GNSS and inertial measurements to provide constant position, slip angle, orientation, velocity and acceleration estimates at 100 or 250 Hz. They provide excellent accuracy and most importantly, repeatability. As well as storing data internally, RT sensors also interface via CAN and Ethernet. Each system can also be configured to displace its measurements, removing the need to mount the sensor at the required measurement point and reducing the installation time.

 

116_RT2500RT2000 Family

The RT2000 family combines precision angular rate sensors and navigation grade accelerometers, a low cost GNSS receiver and an advanced navigation computer to form an inertial navigation system aided by GNSS in one very compact box. The RT2500 is the perfect way to step up from a GNSS receiver and benefit from inertial technology.

 

116_RT3000RT3000 Family

The RT3000 family combines precision angular rate sensors and navigation grade accelerometers, a survey grade GNSS receiver and an advanced navigation computer to form an inertial navigation system aided by GNSS in one very compact box. A high speed GNSS update rate means the RT3000 is ideal for high dynamic tests.

 

116_RT4000systemRT4000 Family

The RT4000 is a high-speed version of the RT3000 family of products. It has all the features of the RT3000 but has a 250Hz update rate.

 

 

Accessories

 

RT-Base GPS Base Station

To get the most from inertial and GNSS navigation systems it is often essential to have differential corrections or DGPS. The RT-Base is a differential correction system with an integrated battery and radio link packed in to a rugged, outdoor Peli case. It is configured to work seamlessly with the RT3000 and RT4000 family of products and can also be used by many other GNSS receivers.

 

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GPS-Base Base Station

The GPS-Base is a small, portable GPS base station capable of providing Differential Corrections for Differential GPS Receivers. The GPS-Base can be used with the RT3000 and RT4000 products to give up to 2cm positioning accuracy.

 

116_RTAnaRT-ANA 16-channel/16-bit Analog Output option

Analog Outputs allow the connection of RT3000 family products to older data acquisition systems, to get simple measurements made fast. Analogue Outputs also offer the ability to get back to basics, to view signals directly on an oscilloscope. The RT-ANA product offers 16 separate channels of 16-bit analog accuracy.


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RT-UPS

The RT-UPS is an uninterruptible power supply for the power protection of all OxTS RT and Inertial+ systems as well as any other electrical or electronic devices that rely on continuous power supply.

 

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RT-Strut, Fast Car Installation Kit

The RT-Strut is an installation kit for putting the RT products in to a car quickly. The RT-Strut provides a rigid installation, close to the Center of Gravity (COG), and can be mounted in minutes.

Vehicle dynamics testing
Tightly-coupled GNSS/INS measurements of the vehicle’s position, orientation and acceleration—output at up to 250 Hz, mean every key movement of the vehicle is captured.

Slip angle measurement
In addition to measuring slip angle to 0.15° at just 50 km/h, extra measurements from our inertial sensors provide a complete picture of external influences, like road camber, which can affect slip angle measurements.

Lane change testing
Accurate roll and heading measurements combine with real-time 1 cm RTK position measurements to show exactly how a vehicle responds, and its position, during lane change tests.

Brake testing
Accurate non-contact velocity and orientation measurements, combined with wheel speed and CAN bus input make our sensors one of the most repeatable and accurate brake testing solutions.

Tyre testing
As well as providing accurate slip angle measurements, our sensors capture a complete pictured of movement and position—giving you the background information to truly evaluate how a vehicle responds.

ESC testing
The ability to capture CAN data from the vehicle and quickly compare it to position, orientation, velocity and acceleration measurements removes the need for extra equipment and makes our sensors ideal for ESC test and development.

 

Position measured to 1 cm accuracy (DGPS)
Velocity measured to 2 cm/s without a base-station
Real-time data output
CAN input
CAN output
Accurate slip angle measurement
High-accuracy pitch, roll and yaw measurements
Easy installation and configuration
Consistent, reliable data output
No data interruption during GNSS blackout
Comprehensive software suite included at no extra cost
100 or 250 Hz systems
Single-satellite aiding (tight coupling) for use in urban environments

 


Accurate Slip Angle Measurement – Advanced Slip

Accurate Slip Angle Measurement – Advanced Slip

There are many reasons people want to measure the slip angle of vehicles. These include everything from developing models for electronic stability control systems to evaluating the performance of different compounds of tyre. But no matter what the data will eventually be used for, there’s one requirement everyone has in common—they want it to be accurate. When it comes to measuring slip angle, accuracy means something very small indeed. ISO15037 recommends a maximum error of 0.5°, although...

 

Cone placement files

Cone placement files

We have started a library of cone placement files so that it is easier to lay out cones according to fixed patterns using Enginuity. If you have any other cone files that you would like to share with us then we would be happy to add them. For an overview of the cone placement feature see here… Disclaimer: Although we have done our best to make sure that these files are correct, you should check them before using them. We cannot accept liability if the files are not correct. Lane change files Lan...

 

 

ExhibitionLocation Date
SIAT ExpoIndia18-21st Jan 2017
Automotive Test ExpoSeoul, Korea6th-8th March 2017
EISUK 14th March 2017
JSAEYokohama, Japan25-26th May 2017
Automotive Test Expo GermanyStuttgart, Germany20-22nd June 2017
Autonomous Vehicle Technology World ExpoStuttgart, Germany20-22nd June 2017
Measurement Systems in ActionMemming, GermanyJune 2017
Automotive Test Expo ChinaChina19-21st Sept 2017
Automotive Test Expo USADetroit, USA24th-26th Oct 2017
Driverless Technology ConferenceUK