AISIN AI has developed a Manual transmission (M/T) for compact FWD vehicles, which has being under production since 2000. This M/T has used for Europe compact FWD vehicles, TOYOTA YARIS and others. The performances like high shift comfort and low noise vibration etc have been achieved with low cost. This M/T is our main product, which is still evolving to the Automated Manual Transmission (AMT) and the overseas manufactured product in near future. We introduce the instance about the balance between high performance, reliability and cost including development story

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The transmission error and the gear noise of a three axes gear system are analyzed with the object of a transfer for recreational vehicles. It is proved that each one of measured transmission errors appearing in the pair of input and idler gears and the pair of output and idler gears also in a three axes gear system is able to be treated by an analytical method of a transmission error for a two axes gear pair. The transfer gear noise is estimable using the expression by two transmission errors for the total exciting force applied to three axes considering the force interference at the idler shaft, as the gear noise estimation index. The force interference at the idler shaft and its influence on the gear noise, on which the proposed index is based, are confirmed by experiments.

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The temperature dependence of friction coefficient of lubricant oils containing MoDTC was evaluated using a ball on disk tribometer at constant temperatures of 25, 40, 60 and 80˚C. In the experiments, the friction coefficient gradually decreased and tended to become lower at steady state. The decreasing slope of the friction coefficient was steeper and the lower friction coefficient at the steady state were obtained at a higher oil temperature. The friction coefficient was also controlled by the concentration of MoDTC in oil. Considering that the results of lubricating tests supported the successive processes involving production and wear of MoS₂, the friction coefficient can be controlled by the coverage of MoS₂ which is determined by a balance of formation and wear of MoS₂. An analysis formula was established based on kinetic assessment of the process in order to obtain the Arrhenius plots of the test results. There were two regions which had different slopes in the plot. The activation energies were 70 and 4kJ/mol for the low and the high temperature regions, respectively. This result suggested that MoS₂ production from MoDTC was reaction rate-limiting at low temperature and transport rate-limiting at high temperature.

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Automobile makers in ASEAN have changed the export strategies from the inside of ASEAN to the outside of ASEAN since the Asian economic crisis in 1997. ASEAN automobile makers are playing important role in the global automobile market since the global cars produced by ASEAN automobile makers are contributing to world wide market.
The auto parts purchase from ASEAN of the ASEAN automobile makers are increasing significantly. In spite of this fact that auto parts purchase from ASEAN is increasing, “perfect” auto parts complementation may not succeed. The auto parts export of Thailand represents the largest volume in ASEAN, and auto parts export of Thailand in ASEAN is increasing. Thailand plays the most important role in the ASEAN auto parts market. Other countries such as Malaysia, the Philippines, and Indonesia, may lose positions of auto parts supplier in ASEAN, and expansion of the free trade area may result in decreasing the importance of auto parts complementation in ASEAN.
The ASEAN auto parts makers are increasing auto parts export to outside ASEAN every year. Although the expansion of the free trade area in East Asia increases auto parts export from ASEAN, ASEAN will face competitions from China. By supplying their auto parts to India who has huge population and playing a gateway role of auto parts trade from China to India. ASEAN tries to became a hub in the East Asian free trade area.

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The "Good Lighting Award" from IEIJ has been given to the lighting facilities completed last year due to its excellence in visual environment, lighting technique, and effect of the lighting. In the Tokai branch, this award was judged by a selected committee comprised of university professors and fellow members. There are about thirty applications every year. The committee not only recommends the "Good Lighting Award" for the IEIJ headquarters but also selects the "Prize of the Head of the Tokai Branch" and the "Tokai Branch Encouragement Prize". In this paper, we report which facilities have won in the past six years and summarize the transition of the lighting facilities of the Tokai branch. As for recent trends, LED lighting has become widespread and the use of more original LED lighting technology in the future is expected.

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本論文はネットワーク組織の構造的空隙とグループセントラリティとそのパフォーマンスの関係の解明を目的としている. 近年，企業間ネットワーク形成のメカニズムをはじめ，サプライチェーンにおける企業間行動の分析や，企業間関係と技術開発との関連分析などはネットワーク組織の研究成果として発表されている. しかしながら，ネットワークの構造とそのパフォーマンスとの関連の研究はまだ少ない. このような問題を意識しながら，本論文では具体的にはトヨタの協豊会とマツダの洋光会のネットワーク組織を取り上げ，ネットワーク構成メンバーのパフォーマンスである売上高や利益とネットワークの構造を示す構造的空隙とグループセントラリティとの関係を分析し，ネットワーク組織のパフォーマンスに影響を与える要因を特定するとともに，両者のグループセントラリティの比較を通じて，ネットワーク全体の特性を解明する. また，両者の比較を通じて，それぞれの特徴を明らかにし，理想的なネットワークモデルの解明を目指す.

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Parametric excitations caused by mesh stiffness variation of multi-step gear system are analyzed using multiple time scales method and numerical analysis method based on fundamental solution matrix. As a result, the followings were made clear. (1) Influence of viscous damping was investigated, and it was pointed out that the analysis considering viscous damping was very important. (2) The differences of the results obtained by multiple time scales method and those by the numerical analysis method were large in the regions of combination instabilities which generate when the sum of natural frequencies is close to mesh stiffness variation frequency. On the other hand, in the primary resonances and secondary ones, the differences of those results were small generally. (3) In four-gear system, adding to primary, secondary, and combination parametric excitations, when difference of two mesh stiffness variation frequencies is close to natural frequency, or its twice, or the sum of natural frequencies, parametric resonance occur.

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This paper describes optimal deployment and estimation method for arrival time for heterogeneous swarm of unmanned vehicles using semi-regular tessellation and simple formulation. Although recent researches have verified the effectiveness of swarm of unmanned vehicles at the time of natural disaster etc. and many researches related to them have been made, many of them target homogeneous swarm. On the other hand, it is more difficult to generalize and formulate the model of heterogeneous swarm because of their complexity. This paper proposes the method of generalizing heterogeneous swarm model and its optimal deployment in case of surveillance which is one of the most possible missions for them. Moreover, semi-regular tessellation in geometry has been applied which is one of the representative methods to fill the plane in general.

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This paper describes a partitioning method of region and index of choosing number for heterogeneous swarm of unmanned vehicles using multiplicatively weighted Voronoi tessellation and simple formulation. Although recent researches have verified the effectiveness of swarm of unmanned vehicles at the time of natural disaster etc. and many researches related to them have been made, most of them are homogeneous swarm. On the other hand, there are few researches related to heterogeneous swarm because of their complexity and difficulty of generalizing and formulating models. This paper proposes the method of generalizing heterogeneous swarm model and partitioning method of searching region which is one of the most possible missions for them. In this paper, Voronoi tessellation in computational geometry has been applied which is one of the representative partitioning methods in general.

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