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检索条件"机构=State Key Lab of Comprehensive Technology on Automobile Vibration and Noise and Safety Control"

共 54 条记录，以下是1-10 订阅

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Vehicle Platoon Motion Planning Based on Dual-Mode Strategy 1

引用

2023中国汽车工程学会年会暨展览会

作者： Lv Ying Sun Liangliang Li Haomiao Hu Hongyu He Lei Intelligent and Connected Vehicle Development Institute China FAW Corporation Limited State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise & Safety Control State Key Laboratory of Automotive Simulation and Control Jilin University

ISBN: (数字)9789819702527

ISBN: (纸本)9789819702510;9789819702541

Intelligent connected vehicle platooning technology utilizes vehicle-to-vehicle communication to enhance urban road efficiency and ensure driving *** paper focuses on the vehicle platoon motion planning algorithm,which constructs a reference path for platoon vehicles based on smoothed historical trajectory points of the lead *** algorithm generates path boundaries considering road and obstacle information,creates candidate paths using lateral and longitudinal sampling,and selects the optimal path using a cost function.A velocity planning algorithm is developed for platoon vehicles,incorporating dual-mode strategies for platoon cruise and obstacle avoidance based on different scenarios.A safety risk assessment is established,guiding the choice of speed planning ***-world experiments validate the planning outcomes,evaluating speed,acceleration,and inter-vehicle *** indicate well-smoothed trajectories with good comfort and safety attributes.

关键词： Intelligent connected vehicle Path planning Speed planning Vehicle platoon

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Design and Development of automobile Hydraulic Servo Test System

Design and Development of Automobile Hydraulic Servo Test Sy...

引用

China SAE Congress, 2021

作者： Cui, Mingyu Yang, Chunhui Liu, Fuqiang Wang, Yulei Li, Hongdong General Research and Development Institute China FAW Corporation Limited Changchun China State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise & Safety Control Changchun China

ISBN: (纸本)9789811938412

The test bench driven by hydraulic servo has been widely used in the test of vehicle and parts, and plays an important role in automobile material test, new material research and development, product part structure design and quality monitoring. The mainstream suppliers in the field of automotive high-end hydraulic servo test equipment are foreign manufacturers, with serious technical blockade, difficult maintenance, long procurement cycle and high price of equipment body and accessories;in order to improve the test efficiency of automotive products and reduce the test cost, a set of high-precision automotive hydraulic servo test system is developed independently. Based on the basic principle of hydraulic servo control, the test system independently developed the test software, control accuracy reached the level of first-class hydraulic servo equipment, completed the fatigue life test of truck saddle, and provided guarantee for the performance and life test of subsequent vehicle and parts. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Product design

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Thermal Field Simulation and Thermal Capacity Influence Factor Analysis of Disc Brake Based on Thermal-structure Coupling 3

Thermal Field Simulation and Thermal Capacity Influence Fact...

引用

2023 3rd International Conference on Fluid and Chemical Engineering, ICFCE 2023

作者： Chang, Jinyun Jiang, Daxin Han, Chao Wu, Xiaoyi Hu, Feng Research and Development Institute China First Automobile Group Co. Ltd Changchun130000 China State Key Laboratory of Comprehensive Technology for Automobile Vibration Noise and Safety Control Changchun130000 China

The matching and heat dissipation capacity of the brake have an important impact on the braking performance of the vehicle. During braking, most of the driving kinetic energy of the vehicle is converted into the internal energy of the brake disc through friction heat generation, resulting in a quick rise in the temperature of the brake disc, thus causing a complex thermal-solid coupling problem. This paper takes the disc brake of a certain vehicle as the analysis object, establishes the finite element model of the disc brake through hypermesh, and analyzes the distribution characteristics of the contact pressure between the friction pad and the brake disc under clamping and torsion braking behaviors. A thermal-solid coupling simulation analysis method considering the actual heat flow and heat transfer boundary of the brake disc is proposed. Compared with the temperature field of the bench test, the simulation accuracy reaches 97%. Finally, three types of brake discs with point rib, rotation rib and straight rib are designed, and the influence of brake disc thickness, shape and number of ventilation rib on the thermal capacity of brake disc is analysed. It provides guidance for the structural design of brake discs and can replace partial tests and shorten the brake disc development cycle. © Published under licence by IOP Publishing Ltd.

关键词： Kinetics

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Research on Crash Simulation technology of Carbon Fibre Reinforced Plastic Vehicle Body

Research on Crash Simulation Technology of Carbon Fibre Rein...

引用

China SAE Congress, 2021

作者： Zhu, Xuewu Yao, Zhou Wang, Shibin Ji, Longbo Lou, Fangming General Research Institute of China FAW Group Co. Ltd. Changchun China State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise and Safety Control Changchun China

ISBN: (纸本)9789811938412

Carbon Fiber Reinforced Plastics (CFRP) have the advantages of low density, high strength, corrosion resistance, etc. With the improvement of CFRP manufacturing and processing technology, CFRP have been increasingly used in the automotive industry. In this paper, based on a vehicle model with CFRP body structure, the research of multi condition vehicle crash safety simulation technology is carried out. First, study the CFRP vehicle modelling method. Then, calibrate the constitutive of CFRP and structural glue, obtained characteristics parameter through a series of sample-level and component-level tests and simulation. Finally, the CFRP vehicle body crash simulation method was calibrated and revised based on static pressure of roof, frontal impact test and rear impact test. On this basis, a systematic crash simulation method of carbon fiber vehicle is established, which ensures the high consistency between simulation results and vehicle level test, and has guiding significance for carbon fiber vehicle body design. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Carbon fiber reinforced plastics

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Optimization Design of Welding Seam for Axle Housing Baseed on Fatigue Life

Optimization Design of Welding Seam for Axle Housing Baseed ...

引用

China SAE Congress, 2021

作者： Yipo, Kang Xuewu, Zhu Youlong, Zhang Bo, Yan Junlou, Li Yanling, Liu State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise and Safety Control Changchun China General Research and Development Institute of China FAW Co. Ltd. Changchun China

ISBN: (纸本)9789811938412

The reasonable optimization of welding seam load is of great significance for improving the overall fatigue life of punch-welded axle housing. Taking the welding axle housing of passenger car as the research object, the stress distribution of the housing and the welding bracket was calculated by the finite element method (FEM), and the fatigue stress spectrum was obtained. On this basis, the fatigue damage of the housing, the welding bracket and the welding seam was predicted using the critical plane method and the notch stress method, and the rationality of the welding seam layout was evaluated by the fatigue damage of the welding seam. Then, the mechanical analysis was carried out for the welding seam with large fatigue damage, and the optimization measures were put forward from the weld position, length and welding bracket stiffness, so as to improve the local load state of the welding seam. Finally, the fatigue life calculation and experimental verification of the optimized scheme were carried out. The results show that compared with the original scheme, the fatigue damage of the optimized scheme is reduced by 43.0%, and the overall life of the housing is greatly improved. The optimization scheme has passed the bench durability test and vehicle road durability test, and the housing has no fracture or crack, which verifies that the optimization scheme is effective, and the weld optimization measures have certain engineering reference value. Compared with the bench fatigue durability test, the prediction accuracy of fatigue life is 82.4%, which meets the engineering needs. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Housing

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Research on simulation model of high precision ear pressure comfort of car door closing based on user experience 3

Research on simulation model of high precision ear pressure ...

引用

3rd International Conference on Mechanical Design and Simulation, MDS 2023

作者： Su, Lili Liu, Yingjie Xu, Zengman Qiu, Wenjie Li, Hongliang Zhang, Zhiguo Automotive Engineering Research Institute Co. Ltd Tianjin China FAW Research and Development Institute State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise & Safety Control Changchun China

ISBN: (纸本)9781510664890

The door system is the system most frequently used by consumers. With the improvement of vehicle manufacturing accuracy and vehicle sealing level, the problem of ear pressure in the passenger compartment becomes prominent at the moment of closing the door. This paper analyses the influencing factors of human ear comfort. Based on STAR CCM+ overlapping grid technology, an analysis model of door closing ear pressure is established. The simulation analysis results show that the effective leakage area of airflow channel and relief valve is the main influencing factor of door closing ear pressure. The real vehicle test data shows that the simulation accuracy of this model can reach 96.81%, which can effectively analyses and prevent door closing ear pressure problems. © 2023 SPIE.

关键词： Pressure relief valves

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Research on Influencing Factors of Front Windshield Collision Simulation Accuracy 1

引用

2022中国汽车工程学会年会暨展览会

作者： Zhu Xuewu Feng Yue Wang Shibin Ma Boshuai Ji Longbo FAW Group Co. Ltd.General Institute of FAW State Key Laboratory of Comprehensive Technology on Automobile Vibration and Noise & Safety Control

ISBN: (数字)9789819913657

ISBN: (纸本)9789819913640;9789819913671

Based on the requirement of improving the simulation accuracy of pedestrian protection of automobile windshield glass,the influencing factors of the simulation accuracy of the front windshield are studied from three aspects:impact position,material parameters,and modeling *** following conclusions are drawn:(1) The closer the distance between the impact point and the interior instrument panel and the black belt boundary,the greater the head damage value;(2) The greater the glass yield stress,the larger the initial peak value of the damage *** reduction of the glass plastic hardening modulus,glass failure plastic strain,interlayer Young's modulus,interlayer yield stress,interlayer plastic hardening modulus will reduce the valley value after the first peak to a certain degree;(3) The rigid connection method of the fixed point of the instrument panel will lead to a larger secondary peak of the damage curve,and the head damage is too *** the same time,it is recommended to use the method of taking the impact point as the center and radiating to the surrounding for glass meshing,which can effectively simulate the cobweb-like breaking form in the glass impact test and improve the simulation accuracy.

关键词： front windshield pedestrian protection simulation accuracy

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The Influence of Seat Occlusion on Driver's Binaural Signal in automobile based on FEM-RTM Simulation

The Influence of Seat Occlusion on Driver's Binaural Signal ...

引用

2021 International Conference on Advanced Technologies and Applications of Modern Industry, ATAMI 2021

作者： Cao, Yuntao Liang, Linda Tan, Wei Zhang, Zhichao Lei, Cheng Yu, Guangzheng Lu, Bingwu Liu, Yingjie Li, Yun State Key Lab. of Comprehensive Technology on Automobile Vibration and Noise and Safety Control Jilin Changchun China Acoustic Laboratory School of Physics and Optoelectronics South China University of Technology Guangzhou China

Automotive environment is increasingly becoming an indispensable listening space in our daily life. Affected by the seat occlusions on sound propagation between the front-row and rear-row space, the speech communication between front and rear passengers in automobile is a well-known problem. However, this issue has been paid less attention. To this issue, the numerical simulation is a common, low-cost and high-efficiency technical approach. However, it is a well-known limitation on the effective frequencies to common numerical methods. To extend the region of effective frequencies, a combined approach of the finite element method (FEM) for low-frequency and the ray-tracing method (RTM) for high-frequency (i.e., FEM-RTM) was adopted in current work. The full-bandwidth binaural room impulse responses for a listener in driver's seat were simulated with the speaker at mid-right seats, and both conditions with seats and without seats were taken into account. Result showed that the seats occlusions mainly affected the left ear (i.e., contralateral ear). The seat occlusions reduced the early decay time, speech transmission index and magnitude spectrum for left ear considerably. The inter-aural correlation coefficient under condition without seats was lower than that under condition with seats. © Published under licence by IOP Publishing Ltd.

关键词： Finite element method

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The Sound Field Characteristics in automobile under Different Speaker Height based on Numerical Simulation

The Sound Field Characteristics in Automobile under Differen...

引用

2021 International Conference on Advanced Technologies and Applications of Modern Industry, ATAMI 2021

作者： Liu, Yingjie Liang, Linda Zhang, Zhichao Tan, Wei Lei, Cheng Yu, Guangzheng Cao, Yuntao Lu, Bingwu Li, Yun State Key Lab. of Comprehensive Technology on Automobile Vibration and Noise and Safety Control Jilin Changchun China Acoustic Laboratory School of Physics and Optoelectronics South China University of Technology Guangzhou China

The automotive acoustic environment has become an indispensable listening space in people's daily lives. However, due to the complexity of the acoustic environment inside automobiles, the sound reproduction in automobile is particularly problematic compared with that in ordinary domestic environments. From the perspective of sound reproduction, it is an effective approach to improve the reproduction performance by raising the speaker height such that nearer to the height of listener's ear. However, this issue has been less studied quantitatively. In current work, we aim to explore how the speaker height affects the sound field characteristics at target listening region by using the finite element method. The speakers at front door inner panels were mounted to three different heights, respectively, and the sound field characteristics at target listening region in driver seat were analysed. Result showed that for higher speaker layout resulted in larger sound pressure levels at the target listening point, and the sound field distribution tends to be more homogeneous. Also, raising the speaker height is conducive to giving a constant frequency response at the target listening point. This works can provide the reference for the design of automotive audio system. © Published under licence by IOP Publishing Ltd.

关键词： Acoustic fields

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Autonomous Driving-Oriented Cognitive Map Lane Generation and Location Recognition Algorithm 22

Autonomous Driving-Oriented Cognitive Map Lane Generation an...

引用

8th International Conference on Computing and Artificial Intelligence, ICCAI 2022

作者： Wang, Yinan Cao, Rongchuan Li, Shuguang Shao, Chuang Cheng, Hong State Key Laboratory of Comprehensive Technology for Automobile Vibration Noise and Safety Control Jilin Changchun China School of Automation Engineering University of Electronic Science and Technology of China Sichuan Chengdu China

ISBN: (纸本)9781450396110

In order to solve the challenges of high-precision maps based on lidar 3D point clouds, which are expensive on-vehicle sensors and high computing power requirements, the academic community has proposed a cognitive map solution with low cost, small amount of data, and moderate positioning accuracy. The current cognitive map mainly relies on the geometric relationship between road signs and lane lines to complete vehicle positioning, and the local positioning accuracy needs to be further improved. This paper proposes a real-time vectorized map modeling solution, using a vectorized map instead of a discrete point map to support a vehicle positioning solution based on road geometry, thereby improving the local positioning accuracy of the vehicle. At the same time, in order to solve the problem of vehicle global positioning, this paper adopts a location recognition algorithm based on the perspective of the vehicle to complete the global location estimation of the vehicle on a large scale only by relying on the vision, so as to serve the navigation function. © 2022 ACM.

关键词： Roads and streets

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