| With the rapid development of the automotive industry and automotive technology,more and more new technologies are being applied to the cars that consumers use every day.As standard regulations for new technologies are not timely,while new technologies bring convenience to life,new technologies are not well-balanced due to the lack of uniform technical regulations.The Automotive Adaptive Cruise Control System(ACC)is an important part of the Advanced Driver Assistant System(ADAS).By controlling the throttle and brakes,the vehicle’s travel speed and acceleration are adjusted to meet the driver’s set time or speed requirements.Achieve an appropriate safety distance with the car in front,and the ACC system with start-stop function can decelerate the vehicle to stop.The research on ACC system evaluation technology mainly includes international standard research and analysis,analysis and comparison of road conditions at home and abroad in this paper,to develop an evaluation technical plan suitable for China’s road conditions.The main research work is as follows:Firstly,elaborate the research background and significance of this article.Traffic safety and environmental pollution problems,as well as driving comfort requirements,have placed high demands on ACC systems.This paper introduces the structure and functional characteristics of the adaptive cruise system,and also analyzes the development history and research status of the ACC system.Secondly,the international standard ISO 15622,ISO 22178 and ISO 22179 is used to identify the target of ACC system(including LSF,FSRA),and the three dimensions of horizontal detection distance,horizontal detection area and vertical detection area are analyzed.The basic norms of the international standard for the detection methods of the ACC system(LSF,FSRA).Thirdly,the characteristics of New European Driving Cycle(NEDC),the United States(FTP75,US06 and SC03),Japan(10,10-15 and JC08),and World-wide harmonized Light duty driving Test Cycle(WLTC)were studied.It introduces the development of “China’s working conditions”,the characteristics of China’s passenger car working conditions(CLTC-P)and the differences between Chinese passenger car working conditions and other country road conditions.Then,the key parameters of driving speed,deceleration and lane width of ACC system evaluation technology under road conditions in China are determined.Develop an ACC system evaluation technology suitable for China’s driving conditions.Finally,the ACC system evaluation technology verification test was carried out through a brand imported model,and the rationality of the ACC system evaluation technology was determined. |
