Contents
Automotive Engineering Exposition 2024 NAGOYA has ended.
Thank you very much for your attendance.
JSAE Chubu Branch Research Report Sessions
Research report sessions organized by engineers in JSAE Chubu region.
※Online auditing is not available for the JSAE Chubu Branch Research Report Sessions.
- Venue
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NAGOYAAichi Sky Expo
Venue 1: Conference Room L5
(Capacity: approximately 90)
Venue 2: Conference Room L6
(Capacity: approximately 90) - Admission
- Free［ Registration required ］
Venue 1: Conference Room L5 〈Capacity: approximately 90〉
Chassis / Body Thursday, July 18 10:15 - 11:25
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Research on Broadband Acoustic Control Technology for Interior Noise in Electric Vehicles
A wideband active noise control system for wideband noise generated by air-conditioning units in automobiles was tested using door loudspeakers and voice-recognition microphones. By developing a new algorithm, a 3 dB (OA) [A]) reduction was achieved in the 40–150 Hz band for all seats in the cabin.
- Toyama Prefectural University
- Yuta Oba
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Vehicle development using brake CAE
This presentation describes the application of CAE-based braking performance estimation to vehicle development.
- Mitsubishi Motors Corporation
- Kenji Nagura
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Study of state estimation using neural machine translation for semi-active suspension
Estimation of suspension stroke velocity is necessary to control ride comfort in semi-active suspension.
This paper reports that estimation accuracy of the stroke velocity is improved by machine learning.- AISIN CORPORATION
- Riku Wakita
Non section Thursday, July 18 11:45 - 12:55
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Dynamic Performance Design Methodology for Automotive
This presentation will report the results of a study of a method for predicting and designing the dynamic performance of automotive wheels, particularly with respect to vibration noise and aerodynamic drag, using CAE.
- Toyama Prefectural University
- Sho Kobayashi
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The Development of Seat Heaters in Cabin Heat Management Using a Numerical Thermoregulation-Model
Reducing heating energy in various electric vehicles is a challenge, requiring cabin heat management using devices like seat heaters. This report introduces efforts in seat heater development utilizing a numerical thermoregulation-model that models the heat balance between the human body and the environment.
- TOYOTA BOSHOKU CORPORATION
- Kenichi Tsukamoto
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hierarchical structuring the seating comfort of electrically assisted bicycle saddles
Unlike ordinary bicycles, electrically power assisted bicycles do not require pedaling power, and therefore require a relaxed seating posture, which requires a comfortable saddle. Therefore, we extracted and structured the sensibility values necessary for saddle comfort. We are also studying the extraction of physical characteristics that correlate with the extracted sensory values. In the process, it was found that there are sensory values that are influenced by the shape of a person's buttocks and riding posture.
- YAMAHA MOTOR CO., LTD
- Taiko Koseki
Production technology / Core technology Thursday, July 18 13:40 - 14:50
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High productivity technology for FC separators using carbon resin composite materials
Our proprietary low-resistance technology enables recycling and high-speed molding of separators by using thermoplastic resin.
- TOYOTA AUTO BODY CO.,LTD.
- Takamasa Kanie
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2tone paint process by passing top coat paint once
For roof 2 tone, it is necessary to pass the top coat process twice "1st color, 2nd color". This is couced decrease production capacity. To solved this problem, we developed paint & paint process to reduction top coat process once for 2 tone.
- Toyota Motor East Japan, INC.
- Kohei Shikanai
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A study on the improvement of fade resistance for brake pads
As part of technological development for lighter weight brakes, we analyzed the cause of the decrease in μ at high temperatures.
The main factor is the generation of gas and liquid due to the decomposition of organic raw materials in the pad, but it is not clear which one is dominant.
In this report, the effects of gas pressure and amount of liquid matter on the friction interface were investigated in fade test(temperature: 300-500℃), and it was shown that the liquid matter was the main factor in the pads considered this time.- ADVICS CO.,LTD.
- Junichi Ujita
Environment technology / Non section / CASE・MaaS Thursday, July 18 15:10 - 16:45
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Consideration Regarding Drag Torque Reduction of Disc Brakes
One of the characteristics of disc brakes that contributes to fuel efficiency and electricity consumption is drag torque.The purpose of this report is to reduce dynamic drag torque during city driving.The factors and variations in drag torque under coast-down test were investigated.A consideration is presented on a method for predicting drag torque and a method for designing toreduce it.
- ADVICS CO.,LTD.
- Takashi Shimizu
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Development of High Impact Resistant Silver Metallic Resin
Suzuki is promoting unpainted resin and Automobile parts.The silver metallic color contains a luminous agent and has high design properties, but it reduces impact resistance. In this article, we introduce the development of resin materials with high impact resistance while adding a quantity of luminous agents that can obtain high brightness.
- SUZUKI MOTOR CORPORATION
- Takaomi Endou
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Influence of vibration during car driving on physiological responses of occupants
The purpose of this study is to establish a quantitative evaluation method for ride comfort, which is different from the conventional evaluation index for automobile vibration, by focusing on changes in physiological reactions of occupants such as breathing and body movements during automobile driving and finding a correlation with ride comfort feeling.
- Shizuoka Institute of Science and Technology
- Yota Igarashi
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Haptics based collaborative steering framework named "Pairdriver®" for automated driving
Despite the recent rise of advanced driving assistance systems and automated driving functions, technical and legal challenges still bind the human driver to the driving task. This research contributes to the development of a comprehensive collaborative steering control framework that enables a consistent haptic design in situations where the driver and the automation share steering tasks.
- JTEKT CORPORATION
- Tomohiro Nakade
Venue 2: Conference Room L6 〈Capacity: approximately 90〉
Core technology / Non section Thursday, July 18 10:15 - 11:25
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QoS Evaluation for ATS and CBS over Ethernet-Based In-Vehicle Network with Use Case in IEEE P802.1DG
This paper compares the QoS when applying Asynchronous Traffic Shaping (ATS) defined by the IEEE 802.1TSN standards to the results when using CBS, which is also one of the IEEE 802.1TSN standards, on an Ethernet-based in-vehicle network.
- Nagoya Institute of Technology
- Akari Yoshimura
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Quantitative Evaluation of Effect of Congestion on Accuracy in IEEE 802.1AS Time Synchronization over Ethernet-Based in-vehicle Networks
This paper evaluates the effect of network congestion on the accuracy of time synchronization in Ethernet-based vehicular networks using IEEE 802.1AS, a time synchronization protocol.
- Nagoya Institute of Technology
- Maika Koizumi
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A Study on Controls by P4 Programming for Implementation of Automotive SDN
This paper studies the feasibility of in-vehicle SDN (Software Defined Networking), which is an elemental technology to realize SDV (Software Defined Vehicle), by realizing four functional requirements proposed as functions required for in-vehicle SDN using P4 and evaluating these requirements through experiments. The feasibility of In-vehicle SDN will be investigated by evaluating these requirements through experiments.
- Nagoya Institute of Technology
- Yuma Sakurai
Electronics / Non section Thursday, July 18 11:45 - 12:55
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Reduction of mechanical vibration by biogenic shaped polymers with hard and soft parts without joints
In order to construct a lightweight and highly efficient mechanical vibration reduction technology, we have been developing a polymer thin-film material with hard and soft portions that differ in Young's modulus by a factor of 1000. In this presentation, we will report the results of vibration reduction of mechanical products using these materials.
- Toyama Prefectural University
- Tatsuya Inoue
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Research on fast-response gas sensing using MEMS technology and novel nano-gap electrodes
In gas sensors, there are few examples of initiatives focusing on the distance between electrodes. The use of nano-gap electrodes has been shown to produce a fast response that differs from that of conventional oxide semiconductor gas sensors.
- Niterra Co., Ltd.
- Tomonori Kondo
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Development of luminescence/millimeter wave transmission emblems
The automotive industry is undergoing a period of major change, including the electrification of vehicles and the development of automated driving. We have succeeded in developing an emblem that combines both luminous and millimeter-wave transmission functions in response to this evolution of vehicles, and we report on the development technology behind the product.
- TOYODA GOSEI Co.,Ltd
- Atsushi Kumo
Power train Thursday, July 18 13:40 - 14:50
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Study on Improvement of Mixture Homogeneity of Hydrogen Engine by Jet
Hydrogen engines are attracting attention as one of the carbon-neutral power sources. Direct injection in the cylinder after closing the intake valve is effective from the viewpoint of higher output, but NOx becomes a problem due to the short mixing time and inhomogeneity. This paper analyzes the air-mixture formation mechanism and proposes design guidelines for jets that achieve a homogeneous mixture with both power and low NOx.
- DENSO CORPORATION
- Yasuhiro Sogabe
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Challenges in CAE modeling of H2 Engines
CAE modeling of H2 engines presents numerous challenges in terms of balancing simulation accuracy and cost. Modeling the flow and mixing phenomena are challenging mainly due to the extremely high speed of H2 flows couples with high mass diffusivity of H2 gas. On the chemical kinetics side, high flame speed and small flame thickness make accurate tracking of combustion difficult. NOx generation, high heat losses and crankcase blowby are also significant issues that are challenging to model in low-cost simulations. This presentation discusses these issues in detail and briefly touches upon some potential solutions.
- YAMAHA MOTOR CO., LTD
- Saxena Kishal
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Elucidating the mechanism of hydraulic noise using CFD
Hydraulic system noise was often solved by trial and error in experiments. To solve it, CFD that reproduce the regulating pressure behavior of valves was conducted and analyzed the flow field in detail. The results revealed the mechanism, air in the oil expands and compresses in the circuit to generate noise, which is difficult to elucidate experimentally. In this report, the details of mechanism and countermeasures will be presented.
- JATCO Engineering Ltd
- Masaru Shimada
Power train / Non section / Safe and secure Thursday, July 18 15:10 - 16:45
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Combination of dissimilar overlay materials for engine bearing life extension
Nowadays, Bismuth (Bi) and polymer are being applied as an overlay material for engine bearings instead of Lead (Pb) which is environmentally harmful material. In this study found out a possibility of longer bearing lifetime under tough bearing operation condition to make an optimal combination with Bi and polymer overlay.
- Daido Metal Co., Ltd.
- Yuma Haneda
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Methods for supporting resident-led community place creation, and the value of the community place for residents -Action research for high-rise housing development residents of Nagoya city-
We demonstrated through action research a method to support the creation of community places that will become places that embody the " a society of regional coexistence " advocated by the government, and clarified the requirements necessary for its continuation and the value for residents.
- Toyota Central R&D Labs., Inc.
- Yoko Kumai
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Data analysis and efficiency using human-centric measurement and machine learning
Human-centric development is accelerating in mobility development, we will introduce an approach to overwhelming efficiency using integrated measurement of complex [human & mobility] data and machine learning.
- Toyota Technical Development Corporation
- Shotaroh Noguchi
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Development of Simulation-Based Method for Estimation of Collision Avoidance Benefit of Automatic Emergency Braking and Lane Departure Warning in Traffic Collisions
Advanced Driver-Assistance System (ADAS) are becoming widespread and are expected to contribute to reducing the number of traffic collisions and mitigating damage to people. The situations of traffic collisions are diverse. That makes it difficult to quantitatively estimate the actual effectiveness of ADAS through physical experiments. In this study, a simulation-based method was developed to quantitatively estimate the effect of ADAS taking into account the various situations of traffic collisions.
- TOYOTA MOTOR CORPORATION
- Nana Takeuchi