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Technical Paper

Typical Pedestrian Accident Scenarios in China and Crash Severity Mitigation by Autonomous Emergency Braking Systems

2015-04-14
2015-01-1464
In China, nearly 25% of traffic fatalities are pedestrians. To avoid those fatalities in the future, rapid development of countermeasures within both passive and active safety is under way, one of which is autonomous braking to avoid pedestrian crashes. The objective of this work was to describe typical accident scenarios for pedestrian accidents in China. In-depth accident analysis was conducted to support development of test procedures for assessing Autonomous Emergency Braking (AEB) systems. Beyond that, this study also aims for estimating the mitigation of potential crash severity by AEB systems. The China In-depth Accident Study (CIDAS) database was searched from 2011 to 2014 for pedestrian accidents. A total of 358 pedestrian accidents were collected from the on-site in-depth investigation in the first phase of CIDAS project (2011-2014).
Technical Paper

The Synthetic 3DOF Wheel Force for Passenger Vehicle Based on Predicted Frequency Response Function Model

2018-04-03
2018-01-0123
To determine the vehicle chassis requirements, wheel force transducer (WFT) have been the best option when it is being used in targeting customer correlation or determining the effective use of the proving ground. However, using wheel force transducer in customer correlation fleet test is often unfeasible due to the huge cost and low practicability. As a result, engineers have to choose other transducer measures. This paper describes an effective approach of wheel force prediction by using the frequency response function (FRF) model of vehicle dynamic system. A vehicle system linear modelling technique is used. For the system identification of FRF, the acceleration and wheel force time history data, as system input and output, are collected from an instrumented passenger car as it traverses in different real-world proving ground surfaces. The obtained FRF represents the complex suspension mechanical model. Once the FRF is calculated, the predicted force signal can be implemented.
Technical Paper

Analysis of Urban Collision Risk Scenarios in China Based upon FOT on AEBs

2019-04-02
2019-01-0131
Compared with the scenarios on expressway or in closed area (such as a park or a port), urban driving scenarios is more complex and diverse, and challenges automated driving (AD) function more. Meanwhile the lack of urban scenario analysis, especially urban collision risk scenario analysis, leads to slow development of vehicles with AD functions in city, in order to boost evolution of automated vehicles (AVs) in city, field operational test (FOT) need to be carried out in cities. In this paper, urban collision risk scenarios (UCRS) in China, based upon a small scale of FOT on Autonomous Emergency Braking System (AEBs), were analyzed. Despite of road types, weather conditions and light conditions, the UCRS collected in Tianjin, Chongqing and Hefei, China were classified into six categories.
Technical Paper

A Study on Comprehensive Evaluation of Intelligent Connected Vehicle Cybersecurity

2019-04-02
2019-01-0477
In view of the automotive cybersecurity incidents occur frequently with no evaluation standard, a comprehensive evaluation method is proposed, which firstly reviews the process of obtaining automotive cybersecurity goals and function requirements through threat analysis and risk assessment. Then the international research projects on automotive cybersecurity and the key issues are summarized. It is proposed to score (0-100) from the three dimensions of cybersecurity level, intelligent level and incident response capacity of enterprise, and then comprehensively evaluate the cybersecurity performance level of automobile. Cybersecurity level includes concept design of cybersecurity, verification of protection scheme and penetration test. We conducted penetration testing from seven aspects, including network architecture, ECU, T-box, Radio, IVI, cloud Platform, APP.
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