Analysis of the minimum swerving distance for the development of a motorcycle autonomous braking system

Piantini

et al. 2018

Sensors

Self Cite

Advanced driver assistance systems, ADAS, have shown the possibility to anticipate crash accidents and effectively assist road users in critical traffic situations. This is not the case for motorcyclists, in fact ADAS for motorcycles are still barely developed. Our aim was to study a camera-based sensor for the application of preventive safety in tilting vehicles. We identified two road conflict situations for which automotive remote sensors installed in a tilting vehicle are likely to fail in the identification of critical obstacles. Accordingly, we set two experiments conducted in real traffic conditions to test our stereo vision sensor. Our promising results support the application of this type of sensors for advanced motorcycle safety applications.

Section: Introductionmentioning

confidence: 99%

Motorcycles that See: Multifocal Stereo Vision Sensor for Advanced Safety Systems in Tilting Vehicles

Gil

Piantini

et al. 2018

Sensors

Self Cite

“…In the ICS checker algorithm, the dynamical models of the host and opponent vehicles were used to predict all of the possible trajectories of those 2 vehicles given the initial state, including extreme maneuvers. We specifically tuned this algorithm for a host motorcycle rather than a passenger car by modeling reallife performances of a motorcycle while performing extreme avoidance maneuvering, with this informed by the results of field tests presented by Giovannini et al (2013). Furthermore, the algorithm adopted a rectangular shape of the vehicles rather than the circular shapes adopted by Martinez-Gomez and Fraichard (2008).…”

Section: Maeb Algorithm Enhancementsmentioning

confidence: 98%

Further Development of Motorcycle Autonomous Emergency Braking (MAEB), What Can In-Depth Studies Tell Us? A Multinational Study

Traffic Injury Prevention

Rizzi

Brown

et al. 2014

Self Cite

“…The MAEB is supposed to trigger once the collision becomes physically unavoidable either by braking or swerving. Because at high speeds the swerve maneuver is more efficient than braking (Giovannini et al 2013), the MAEB activation is delayed until even a swerving action would not avoid the crash, thus limiting the potential impact speed reduction with respect to lower speed values. The simulations indicated an impact speed reduction due to MAEB compatible with the theoretical values in 4 out of 7 cases (Figure 2).…”

Section: Discussionmentioning

confidence: 99%

Assessing the Potential Benefits of the Motorcycle Autonomous Emergency Braking Using Detailed Crash Reconstructions

Traffic Injury Prevention

Giovannini

Baldanzini

et al. 2013

Self Cite

Objective: The aim of this study was to assess the feasibility and quantitative potential benefits of a motorcycle autonomous emergency braking (MAEB) system in fatal rear-end crashes. A further aim was to identify possible criticalities of this safety system in the field of powered 2-wheelers (PTWs; e.g., any additional risk introduced by the system itself).Methods: Seven relevant cases from the Swedish national in-depth fatal crash database were selected. All crashes involved carfollowing in which a non-anti-lock braking system (ABS)-equipped motorcycle was the bullet vehicle. Those crashes were reconstructed in a virtual environment with Prescan, simulating the road scenario, the vehicles involved, their precrash trajectories, ABS, and, alternatively, MAEB. The MAEB chosen as reference for the investigation was developed within the European Commission-funded Powered Two-Wheeler Integrated Safety (PISa) project and further detailed in later studies, with the addition of the ABS functionality. The boundary conditions of each simulation varied within a range compatible with the uncertainty of the in-depth data and also included a range of possible rider behaviors including the actual one. The benefits of the MAEB were evaluated by comparing the simulated impact speed in each configuration (no ABS/MAEB, ABS only, MAEB).Results: The MAEB proved to be beneficial in a large number of cases. When applicable, the benefits of the system were in line with the expected values. When not applicable, there was no clear evidence of an increased risk for the rider due to the system. Discussion and Limitations: MAEB represents an innovative safety device in the field of PTWs, and the feasibility of such a system was investigated with promising results. Nevertheless, this technology is not mature yet for PTW application. Research in the field of passenger cars does not directly apply to PTWs because the activation logic of a braking system is more challenging on PTWs. The deployment of an autonomous deceleration would affect the vehicle dynamics, thus requesting an additional control action of the rider to keep the vehicle stable. In addition, the potential effectiveness of the MAEB should be investigated on a wider set of crash scenarios in order also to avoid false triggering of the autonomous braking.