This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Motorcycle Instrument Clusters for Collision Reconstruction
ISSN: 0148-7191, e-ISSN: 2688-3627
To be published on April 14, 2020 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
The behaviour of the instrument cluster of passenger cars during a collision is reasonably well understood, following a number of studies over the past decade. However, one of the frequent questions asked is if motorcycle instruments can be considered in the same way as passenger cars. Motorcycle instruments work in the same way as passenger car instruments. The older models use a Bowden cable to drive a spinning magnetic cup, which drags an instrument needle against a hair spring. Newer models (typically post 2000) use a stepper motor which requires power to drive the needle to any indicated position, including returning it to zero. Hence if power to the instrument is lost as a result of a collision, there is no electrical power to the motor to move the needle, and it should be left at its last position before the power was lost. However, the accelerations experienced by a motorcycle instrument during a collision are significantly different from those of an instrument cluster housed within the dash of a passenger car. Over the past few years a number of crash tests involving motorcycles have been carried out in the USA and UK and the behaviour of the instruments were analysed to see how they perform at holding any residual reading.
CitationGoddard, C., "Motorcycle Instrument Clusters for Collision Reconstruction," SAE Technical Paper 2020-01-0879, 2020.
Data Sets - Support Documents
|[Unnamed Dataset 1]|
|[Unnamed Dataset 2]|
|[Unnamed Dataset 3]|
- Goddard, C. and Price, D. , “Speedometers and Collision Reconstruction,” SAE Technical Paper 2017-01-1412, 2017, https://doi.org/10.4271/2017-01-1412.
- Montalbano, P., Melcher, D., Keller, R., Rush, T. et al. , “Testing Methodology to Evaluate Reliability of a “Frozen” Speedometer Reading in Motorcycle / Scooter Impacts with Pre-Impact Braking,” SAE Technical Paper 2016-01-1482, 2016, https://doi.org/10.4271/2016-01-1482.
- Fatzinger, E., Shaw, T., and Landerville, J. , “The Effects of Power Interruption on Electronic Needle-Display Motorcycle Speedometers,” SAE Technical Paper 2016-01-1474, 2016, https://doi.org/10.4271/2016-01-1474.
- Hague, D. , “Accuracy of Retained Speedometer Readings,” in Proceedings of the 11th Institute of Traffic Accident Investigators International Conference, Birmingham, 2014.