2020 Volume 65 Issue 8 Pages 498-504
Automatic transmissions have evolved in response to changes in the environment surrounding vehicles, and automatic transmission fluid have evolved as well. Currently, the automotive industry is facing a serious global warming problem and electrification is rapidly progressing to meet strict CO2 emission regulations. Furthermore, the era of “CASE”1) has arrived, and a period of major change has been reached. Looking back on the evolution of automatic transmission and changes in transmission fluid, this paper describes the performance required for transmission fluid in consideration of future market trends for transmission (Incl. reducer).