Analysis of a New Automatic Transmission Control System for LEXUS LS400

Taniguchi, H.; Ando, Yasushi

doi:10.4271/910639

Cited by 11 publications

(1 citation statement)

References 3 publications

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“…The development of automatic transmission control technology covers several approaches dealing with closed-loop control of the gear shift process to improve shift quality. A summary of documented types of smooth shift control include turbine speed trajectory control [1][2][3], speed ratio control [4], clutch slip control [5][6], output torque control [7][8][9], and clutch pressure control [10].…”

Section: Introductionmentioning

confidence: 99%

Integrated Powertrain Control for Gear Shifting

Wan

Huang

Zhang

et al. 2011

AMM

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Drivability and fuel economy are continuously emphasized during the development of automobiles, and shift quality is the most important part of the drivability. To improve the shift quality, the integrated powertrain control strategy for gear shifting is presented in this paper. First of all, the transmission control strategy based on the turbine speed trajectory is proposed. Furthermore, an output torque observer is determined to implement the coordinated engine control, and then the torque based coordinated engine control is presented. Finally, the integrated powertrain control strategy is studied by experiments. The experimental results show that the integrated powertrain control reduces the shift jerk and the dissipated clutch energy during gear shifting.

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