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Technical Paper

Automated Mechanical Transmission in China

2000-06-12
2000-05-0149
To improve the performance of AMT, many researches have been done to perfect the shift schedule and the clutch control performance. The new type of actuators of clutch and gearbox driven by motors are introduced, which are easy to manufacture, install and control compared to the hydraulic actuators. During the exploiting of automated mechanical transmission, the boundary points shift law is previewed, and the new methods to make the shift law are proposed. Based on these, the shift law of Santana2000 AMT of Shanghai VW is given, which is proved by the actual run. All of these have theoretical and practical value to develop national automatic transmission.
Technical Paper

Study on the characteristics of driving cycles

2000-06-12
2000-05-0336
The driving cycles reflect the actual operational condition of vehicles. Based on these cycles, the energy performance of an actual Internal Combustion Engine (ICE) vehicle and that of a hypothetical Hybrid Electric Vehicle (HEV) are predicted. The reasons for different results are analyzed using the equal efficiency loops of engine and motor. These lay a foundation for selecting and determining the reasonable driving cycle to select, design and match the vehicles.
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