Development of Transient State Model for CVT-HILS

Hagiwar, Kenji; Ito, Ryo; Yoda, Ko; Saotome, Hiroshi

doi:10.4271/2005-08-0418

Cited by 1 publication

(1 citation statement)

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“…For automatic transmissions, since the transmission mechanism is very complex and difficult for developing an exact analytical model, the hardware-in-the-loop technology as an effective tool has always been widely used to analyze the transmission performance of the automatic transmissions. There are some works considered low-cost hardwarein-the-loop simulation structures in which usually a real transmission control unit (TCU) is connected with a virtual controlled object, adopting a real-time hardware platform to simulate the external environment of the TCU, such as sensor signal and communication interface [30][31][32]. Hagiwara et al considered the transmission nonlinearity of the CVT and then built a real-time simulation model of the speed ratio change to verify the TCU speed ratio control algorithm.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study on Dynamics of a Novel Dual-Belt Continuous Variable Transmission Based on a Newly Developed Test Rig

Wong

Xie

Chen

2015

Shock and Vibration

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A novel dual-belt Van Doorne’s continuous variable transmission (DBVCVT) system, which is applicable to heavy-duty vehicles, has been previously proposed by the authors in order to improve the low torque capacity of traditional single-belt CVT. This DBVCVT is a novel design among continuously variable transmissions and is necessary to be prototyped for experimental study, and the analytical dynamic model for this DBVCVT also needs to be experimentally validated. So, this work originally fabricated a prototype of DBVCVT and integrates this prototype to a light-load hardware-in-the-loop test rig by replacing the engine and load equipment with the AC motor and magnetic powder dynamometer. Moreover, with the use of this newly developed test rig, this work implements the experimental study of this DBVCVT for the first time. The comparison of experimental and simulation results validates the previously proposed analytical model for DBVCVT, and some basic characteristics of the DBVCVT in terms of the reliability, speed ratio, and transmission efficiency are also experimentally studied. In all, this developed test rig with the analytical model lays the foundation for further study on this novel DBVCVT.

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Section: Introductionmentioning

confidence: 99%