Evaluation method of automatic parking system performance(PDF)
长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]
- Issue:
- 2020年2期
- Page:
- 109-116
- Research Field:
- 汽车与机械工程
- Publishing date:
Info
- Title:
- Evaluation method of automatic parking system performance
- Author(s):
- ZHOU Sha1; ZHONG Ying2; YAN Xiaolei2
- (1. China Automotive Engineering Research Institute Co., Ltd., Chongqing 401122, China； 2. School ofTraffic and Transportation, Chongqing Jiaotong University, Chongqing 400074, China)
- Keywords:
- automotive engineering; automatic parking system; total parking time; parking attitude angle; times of reversing; curvature continuity
- PACS:
- -
- DOI:
- -
- Abstract:
- In order to evaluate the automatic parking system (APS) objectively as a whole, to help consumers dispel concerns about the experience of new technology, and to provide a new direction for the development of APS technology， an evaluation method for APS performance based on test data was proposed. Firstly, parallel parking spot and vertical parking spot were selected as experiment scenes, and the automatic parking sample data in different scenes were collected in vehicle test. The total parking time, angle of parking attitude and times of reversing were selected as evaluation indexes, and a scoring rule was developed to quantitatively evaluate APS to obtain the scores of APS under different indicators. The weights of each index were determined, and the comprehensive score of the APS carried by the vehicle was calculated. The evaluation level of the vehicle parking effect was determined according to the score. Then, the curvature continuity in the process of parking was taken as the qualitative index. The VBOX, gyroscope and vehicle operating parameter acquisition system were used to collect the GPS latitude and longitude data of the parking trajectory. The similarity data fusion algorithm was used to fuse the data, and to improve the data accuracy. The visual interface cftool toolbox in MATLAB was used to fit curve of the merged GPS latitude and longitude data. After that the parking trajectory curve was obtained. At the same time, the curve curvature change can be observed. APS was evaluated qualitatively according to the curvature continuity. The results show that the score of the APS in test vehicle is 7.9, and the curvature of parking trajectory curve is continuous, so the parking effect is good. This method evaluates the automatic parking system from the quantitative and qualitative aspects. By this method, reliable qualitative and quantitative evaluation indexes are established to comprehensively evaluate the APS. And the reliability and market penetration rate of APM are improved. 5 tabs, 6 figs, 25 refs.
Last Update: 2020-04-09