Yunchu Zhai, Ge Dong, Zhenyu Jiang, Qiong Liang, Xuesong Li, Fei Wang
{"title":"Cooperative Motor Control for Dog Clutch Engagement of Electric Vehicles Based on Smith Predictor","authors":"Yunchu Zhai, Ge Dong, Zhenyu Jiang, Qiong Liang, Xuesong Li, Fei Wang","doi":"10.1109/CVCI51460.2020.9338550","DOIUrl":"https://doi.org/10.1109/CVCI51460.2020.9338550","url":null,"abstract":"Multiple speed transmissions are applied to electric vehicles gradually. A reverse gear mechanism using dog clutch is proposed for the inverse Automated Manual Transmission (I-AMT), and the coordination controller of the driving motor and the dog clutch is designed. Considering the characteristic of time delay in the motor control system, a control strategy based on Smith predictor is derived to increase the tracking ability and further improve the dynamic performance of the closed-loop control system. The experiment shows that compared with PID control strategy, those with Smith predictor is better in shifting comfort and reducing the machine wearing of dog clutch.","PeriodicalId":119721,"journal":{"name":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115493731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
F. Zhao, Wensong Lang, Guoqing Liu, Pinglai Wang, Huiqiang Duan, Zhi-sheng You
{"title":"Research on HIL Test Bench for New Energy Vehicle TCU*","authors":"F. Zhao, Wensong Lang, Guoqing Liu, Pinglai Wang, Huiqiang Duan, Zhi-sheng You","doi":"10.1109/CVCI51460.2020.9338585","DOIUrl":"https://doi.org/10.1109/CVCI51460.2020.9338585","url":null,"abstract":"HIL(Hardware In Loop) test is a typical application of semi-physical simulation. It is an important function verification and test link in the development process of automotive electronic control systems. It has become a necessary means in the standardized development process, and it has been increasingly affected by various automotive OEMs(Original Equipment Manufacturer) and component manufacturers. Wide attention. This article focuses on the HIL test environment of the new energy vehicle TCU (Transmission Control Unit) control system, introduces the HIL test system architecture, software and hardware components, and the establishment process of the test environment. The test requirements are formulated according to the application scenarios of the TCU in the new energy vehicle, and the test requirements are based on the test requirements. Set up the HIL test environment. Considering that the motor speed regulation in practical applications is controlled by the vehicle controller, in order to more realistically simulate the vehicle use environment, this paper adopts the VCU(Vehicle Control Unit) and TCU dual-in-the-loop method for HIL testing, aiming at the functions of the electronic control unit controllers of the power system. Simulate the vehicle environment for testing and analyze the test results.","PeriodicalId":119721,"journal":{"name":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116233619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Constrained Containment Control of Agents Network with Switching Topologies","authors":"Chao Liu, Jiahao Xu","doi":"10.1109/CVCI51460.2020.9338545","DOIUrl":"https://doi.org/10.1109/CVCI51460.2020.9338545","url":null,"abstract":"In this brief, the containment problem of double-integrate discrete-time agents network is investigated with control input and velocity constrains. A nonlinear projection algorithm is used to converge all follower agents into a convex hull formed by static leaders, where a scaling factor is proposed to solve the nonlinear constrains such as saturations and nonconvex constrains. Based on model transformation and Lyapunov function, the range from follower agents to the convex hull is proved to be nonincreasing under suitable assumption. Finally, after convex analysis, the containment problem is solved by the proposed algorithm with bounded time delays on condition that the union of the topology graphs contains spanning trees.","PeriodicalId":119721,"journal":{"name":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114822766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research on EEG-based Novice and Experienced Drivers' Identification Using BP Neural Network during Simulated Driving","authors":"Yingzhang Wu, Jie Zhang, Bangbei Tang, Gang Guo","doi":"10.1109/CVCI51460.2020.9338490","DOIUrl":"https://doi.org/10.1109/CVCI51460.2020.9338490","url":null,"abstract":"Drivers play an important role in the transportation system. Novice drivers have insufficient driving risk awareness due to lack of driving experience, which has become a potential hazard in the traffic system. The automotive driving assistance system (ADAS) can more or less help the novice driver to avoid danger. In order to further improve the ADAS control strategy for drivers with different driving experience, it is necessary to identify novice drivers and experienced drivers. In this study, a twelve-kilometer two-way straight highway was designed as the driving scenario. Electroencephalogram(EEG) data generated in the frontal region was recorded as an indicator to evaluate the driver's perception of danger. We aim to identify novice drivers and experienced drivers by using beta waves extracted from collected EEG data when facing dangerous situations. The results indicate that the EEG features (PSD value of beta wave) extracted from the frontal region can effectively recognize the novice driver and the experienced driver through the BP neural network, and achieve a relatively high accuracy at nearly 88%.","PeriodicalId":119721,"journal":{"name":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127150689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"End-to-end control of autonomous vehicles based on deep learning with visual attention","authors":"Zhenze Liu, Kuilin Wang, Jinliang Yu, Jingquan He","doi":"10.1109/CVCI51460.2020.9338558","DOIUrl":"https://doi.org/10.1109/CVCI51460.2020.9338558","url":null,"abstract":"In this paper, we propose an end-to-end controller for self-driving vehicles based on visual attention. Attention strategy is used to weight the high-dimensional feature information extracted by convolutional neural networks (CNNs), and then the vehicle's velocity and steering wheel angle are predicted by different recurrent neural networks (RNNs). The end-to-end controller is trained on Comma.ai dataset and can effectively reduce the mean absolute error (MAE). The result shows that compared with other models, the end-to-end control model based on visual attention can achieve better control effects of vehicle's speed and steering wheel angle.","PeriodicalId":119721,"journal":{"name":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127448784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fengxiang Chen, Y. Pei, Zhicheng Lin, Jieran Jiao, Shiguang Liu
{"title":"Analysis of Influencing Factors on Dynamic Performance of PEMFC Air Supply System","authors":"Fengxiang Chen, Y. Pei, Zhicheng Lin, Jieran Jiao, Shiguang Liu","doi":"10.1109/CVCI51460.2020.9338511","DOIUrl":"https://doi.org/10.1109/CVCI51460.2020.9338511","url":null,"abstract":"Air supply system is one of the most important auxiliary subsystems of proton exchange membrane fuel cell (PEMFC). The response speed of voltage and current in fuel cell system greatly depends on the dynamic performance of air supply system. In this paper, based on AMESim software®, a fuel cell air supply system model of 72kW stack is built. The influence of air compressor response speed, buffer tank and flow resistance on the dynamic response characteristics of air supply system is analyzed, and the influence mechanism is briefly analyzed according to the simulation results.","PeriodicalId":119721,"journal":{"name":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125354775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zixuan Qian, Zhuoping Yu, L. Xiong, Zhiqiang Fu, Dequan Zeng
{"title":"Conditional Integration Active Disturbance Rejection Controller for Path Tracking of Autonomous Driving Vehicles","authors":"Zixuan Qian, Zhuoping Yu, L. Xiong, Zhiqiang Fu, Dequan Zeng","doi":"10.1109/CVCI51460.2020.9338668","DOIUrl":"https://doi.org/10.1109/CVCI51460.2020.9338668","url":null,"abstract":"Aim at rejecting uncertainty disturbance and actuator saturation, a path tracking method is proposed for autonomous driving vehicles, which is implement by active disturbance rejection controller (ADRC) with conditional integration. Firstly, a kinematic-dynamic vehicle model is deduced for describing path tracking process. Secondly, a nonlinear extended state observer is designed to observe the uncertainty disturbance, such as external disturbance and parameter uncertainties. Finally, in order to eliminate error and reject disturbance while resisting actuator saturation, a conditional integration is developed as feedback control low. The test results of lane changing scenarios show that the proposed algorithm can track the desired path quickly and accurately compared with PID and ADRC.","PeriodicalId":119721,"journal":{"name":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127310598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Intelligent Vehicle Environment Scene Parsing Method Based on Multi-tasking Convolutional Neural Network*","authors":"J. Lian, Yuhang Yin, Jiahao Pi, Yuekai Yang","doi":"10.1109/CVCI51460.2020.9338621","DOIUrl":"https://doi.org/10.1109/CVCI51460.2020.9338621","url":null,"abstract":"An encoder-decoder convolutional neural network architecture is presented integrating multi-class semantic segmentation and multi-object detection to improve the efficiency and depth of scene parsing of intelligent vehicle. The encoder of the network is designed as a multi-scale structure to improve real-time performance while ensuring the accuracy. The decoders of the network comprise the semantic segmentation and object detection subnetworks, which share encoder feature maps to improve computational efficiency. During the training process, we use FPS (Frames Per Second) and MIoU (Mean Intersection over Union) as the evaluation metrics of semantic segmentation, while the mAP (mean Average Precision) and FPS are used as the performance evaluation indexes of object detection. We conduct separate and joint training on the network to evaluate its performance. Experimental results show that the proposed network can realize multi-class semantic segmentation and multi-object detection simultaneously with better real-time performance and richer feature information, making it highly possible for implementation on real vehicles.","PeriodicalId":119721,"journal":{"name":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125691950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qijun Su, Bin Duan, Dongjiang Yang, Hao Bai, Cheng Fu, Chenghui Zhang
{"title":"Nonsingular Fast Terminal Sliding Mode Control of LLC Resonant Converter for EV Charger","authors":"Qijun Su, Bin Duan, Dongjiang Yang, Hao Bai, Cheng Fu, Chenghui Zhang","doi":"10.1109/CVCI51460.2020.9338573","DOIUrl":"https://doi.org/10.1109/CVCI51460.2020.9338573","url":null,"abstract":"LLC resonant converter is widely used in electric vehicle (EV) charger for the advantages of low switching loss and high power density. However, its dynamic performance and robustness are easily influenced by multiple disturbance factors. This paper proposes a nonsingular fast terminal sliding mode (NFTSM) control strategy for the LLC resonant converter to improve the dynamic performance and robustness. First, the second-order small-signal model is obtained by the linearized and simplified large-signal mathematical model which is established based on the extended description function method. Then, the NFTSM controller is designed based on the small-signal model. And the system stability is proved by Lyapunov's stability theorem. Finally, Simulation results verify the feasibility and effectiveness of the proposed control scheme.","PeriodicalId":119721,"journal":{"name":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131813989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiao Yang, Jianzhong Zhu, Zhengyu Pan, Boyuan Li, Rongrong Wang
{"title":"Adaptive Estimator for Vehicle Roll and Road Bank Angles Using Inertial Sensors","authors":"Xiao Yang, Jianzhong Zhu, Zhengyu Pan, Boyuan Li, Rongrong Wang","doi":"10.1109/CVCI51460.2020.9338602","DOIUrl":"https://doi.org/10.1109/CVCI51460.2020.9338602","url":null,"abstract":"This paper presents an adaptive approach to simultaneously estimate the angles of vehicle roll and road bank with off-the-shelf vehicle inertial sensors. Measured signals are firstly processed through a kinematic model based adaptive complementary filter, and then fused in a dynamic model based Kalman filter. Adaptive law is designed to suppress the undesired effect caused by transient motion and integral drift. Suspension displacement sensors were installed to accurately measure the reference value of vehicle-body roll angle, and on-vehicle experiments on uneven ground were conducted to evaluate the performance of the proposed method. The effectiveness of the estimator was approved by comparing the estimating results and the reference.","PeriodicalId":119721,"journal":{"name":"2020 4th CAA International Conference on Vehicular Control and Intelligence (CVCI)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131890722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}