This report presents the development of a dynamic temperature model for an automatic transmission in a Volvo Cars passenger vehicle. The model should simulate the oil to cooler temperature and flow from the transmission. A mathematical approach to use lumped masses for different parts of the transmission was used. To tune the response of the lumped masses and heat transfer coefficients; temperature measurements were done on a vehicle in a chassis dyno. To verify the model, simple drive cycles were performed with temperature measurement in the same chassis dyno and on the same vehicle. The verification on the model shows that the model can simulate the behavior of a transmission with an error of 2.5 °C during normal behavior and 6.5 °C for a few minutes when a sudden change in the temperature from the cooler have a large transient increase. Because of this, the model is considered to be fairly accurate. However, in order to make the model compatible with Volvo Cars existing simulation software, Vsim, a "cooler model" has to be created.


    Access

    Download


    Export, share and cite



    Title :

    Dynamic Temperature Model of an Automatic Transmission


    Contributors:
    Zhang, Yao (author)

    Publication date :

    2019-01-01


    Type of media :

    Theses


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :

    DDC:    629



    Dynamic Model of Automatic Transmission System of Tracked Vehicle

    Yi, Jun ;Chen, Shui Sheng ;You, Da Zhang | Trans Tech Publications | 2013


    Dynamic Analysis of an Automatic Transmission

    Murali, B. / Megavannan, J. / Patwardhan, M. A. et al. | SAE Technical Papers | 2007


    Dynamic characteristics simulation of automatic transmission hydraulic system

    Shuhan,W. / Xiangyang,X. / Yangang,L. et al. | Automotive engineering | 2008


    Dynamic directional tracking and sound transmission automatic control system

    ZENG FANZHONG | European Patent Office | 2020

    Free access

    A Study on Automatic Transmission System Optimization Using a HMMWV Dynamic Powertrain System Model

    Wang, W. / Moskwa, J. J. / Rubin, Z. J. et al. | British Library Conference Proceedings | 1999