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| 313 | New 8-speed Automatic Transmission for RWD vehicles |
| | Takuya Ishii(Aisin AW Co., Ltd.)Minoru Todo; Mikio Iwase(Aisin AW); Kazutoshi Nozaki; Atsushi Honda; Masafumi Kinoshita; Hirofumi Ota(Toyota Motor); Toshihiko Aoki(Aisin AW) |
| The detail of the world's first eight-speed automatic transmission for front engine, rear drive cars are introduced. (JSAE Paper Number: 20075155) |
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| 314 | Zeroshift AMT alternative to CVT |
| | Ray Heath(Zeroshift) |
| Zeroshift technology allows a manual transmission to change gear in zero seconds. The Zeroshift automated manual transmission (AMT) is easy to manufacture and allows a cost effective alternative to the CVT. Zeroshift offers potential fuel economy improvements from driveline efficiency and the best possible vehicle acceleration. Compared to an existing AMT, Zeroshift offers an uninterrupted torque path from the engine to vehicle which allows for a seamless gearshift. (JSAE Paper Number: 20075013) |
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| 315 | A Novel Approach to Structural Optimisation of an Automotive Gearbox Housing |
| | Y. Park(Romax Technology)Y. Song; Andy Poon; Barry James(Romax Technology) |
| This paper illustrates a novel method for housing optimisation in which the deflection of the internal sub-assemblies are considered during housing design. Rather than simply optimising the housing for maximum stiffness, the method enables the housing to be designed so flexibility characteristics work in sympathy with internal deflections giving optimised alignment of bearings and gears, thus improving durability and NVH performance. The paper explains the theoretical background to the process and demonstrates its implementation in commercially available CAE tools. Practical examples show the optimised housing structure improves gear and bearing life with reduced housing weight when compared to conventional methods. (JSAE Paper Number: 20075340) |
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| 316 | Efficient Development Tools for Automatically Shifting Transmissions |
| | Ferit Kuecuekay(Institute of Automotive Engineering, Technical University of Braunschweig, Germany)Ahmet Satirygit; Thorsten Gartung(FATEC Fahrzeugtechnik GmbH, Germany); Gunther Alvermann(Institute of Automotive Engineering, Technical University of Braunschweig, Germany) |
| The increasing popularity of automatically shifting transmissions among customers also leads to more vehicle-engine-transmission-combinations offered by the manufacturers. The growing effort is synonymous to a raised employment of personnel, longer calibration periods and consequently with higher expenses. With regards to this calibration area, methods and tools for the automated calibration of transmissions are needed. Two essential efficiency improvements are in the focus of consideration: The transfer of road tests into the laboratory and the objectification of the shifting comfort. Both meet within the automated shifting comfort calibration under laboratory conditions, aiming at the reduction of the calibration effort. (JSAE Paper Number: 20075043) |
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