US 12,078,244 B2
Automatic transmission
Kazue Shimokawara, Atsugi (JP)
Assigned to JATCO LTD, Fuji (JP); and NISSAN MOTOR CO., LTD., Yokohama (JP)
Appl. No. 18/261,919
Filed by JATCO Ltd, Fuji (JP); and NISSAN MOTOR CO., LTD., Yokohama (JP)
PCT Filed Jan. 11, 2022, PCT No. PCT/JP2022/000493
§ 371(c)(1), (2) Date Jul. 18, 2023,
PCT Pub. No. WO2022/158327, PCT Pub. Date Jul. 28, 2022.
Claims priority of application No. 2021-007013 (JP), filed on Jan. 20, 2021.
Prior Publication US 2024/0084892 A1, Mar. 14, 2024
Int. Cl. F16H 61/662 (2006.01)
CPC F16H 61/66259 (2013.01) 6 Claims
OG exemplary drawing
 
1. An automatic transmission, comprising:
a transmission mechanism including a pair of pulleys provided on a drive source side and a drive wheel side, respectively, and an endless member wound between the pair of pulleys; and
a stopper that defines a lowest speed ratio on a lowest side of the transmission mechanism, wherein
when starting with an accelerator pedal opening less than a predetermined opening, the automatic transmission is set to a first speed ratio, and when starting with the accelerator pedal opening equal to or greater than the predetermined opening, the automatic transmission is set to a second speed ratio, which is the lowest speed ratio defined by the stopper and is lower than the first speed ratio.