Automatic transmission
AssigneesJATCO Ltd, Nissan Motor Co., Ltd.
InventorKazue Shimokawara
Life of this patent
Estimating the term…
Abstract
An automatic transmission, in which 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 lower than the first speed ratio.
Claims6
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.
An automatic transmission shifted to a stopped speed ratio during stopping, before changing from a running state to a stopped state, the 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 speed ratio higher than the stopped speed ratio, and when starting with the accelerator pedal opening equal to or greater than the predetermined opening, the automatic transmission is set to the stopped speed ratio, and
- the stopped speed ratio is the lowest speed ratio defined by the stopper.
An automatic transmission shifted to a stopped speed ratio during stopping, before changing from a running state to a stopped state, the 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 (accelerator pedal opening degree) less than a predetermined opening, the automatic transmission is set to the stopped speed ratio, and when starting with the accelerator pedal opening equal to or greater than the predetermined opening, the automatic transmission is set to the lowest speed ratio, which is defined by the stopper and is lower than the stopped speed ratio.
Dependencies are inferred from the claim text.