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US 8,083,642 B2Granted
Transmission apparatus
AssigneeNissan Motor Co., Ltd.
InventorTakashi Senoo
Life of this patent
Estimating the term…
Abstract
A transmission apparatus includes a wet rotary clutch configured to transmit power from an input to an output when in an engaged position, a clutch lubricator to supply a lubricating oil to the wet rotary clutch, a synchromesh configured to perform a meshing operation while the wet rotary clutch is in the disengaged position, and a controller configured to increase a revolution speed of the input of the wet rotary clutch before the synchromesh begins the meshing operation.
Claims17
A transmission apparatus, comprising:
- a wet rotary clutch configured to transmit power from an input to an output when in an engaged position;
- a clutch lubricator to supply a lubricating oil to the wet rotary clutch;
- a synchromesh configured to perform a meshing operation while the wet rotary clutch is in the disengaged position;
- a controller configured to increase a revolution speed of the input of the wet rotary clutch before the synchromesh begins the meshing operation;
- and
- a shift range selector configured to select between a driving shift range and a non-driving shift range,
- wherein the controller is further configured to:
- limit an amount of the lubricating oil supplied to the wet rotary clutch to less than a predetermined amount when the non-driving shift range is selected and when the meshing operation is incomplete;
- and
- increase the revolution speed of the input of the wet rotary clutch for a predetermined amount of time before the synchromesh mechanism begins performing the meshing operation and while the non-driving shift range is selected.
7 more elements
A method to control a transmission, the method comprising:
- providing a wet rotary clutch comprising an input and an output;
- transmitting power from the input to the output of the wet rotary clutch when in an engaged position;
- supplying a lubricating oil to engage the wet rotary clutch;
- performing a meshing operation to gears of the transmission while the wet rotary clutch is in the disengaged position;
- increasing a revolution speed to the input of the wet rotary clutch prior to performing the meshing operation;
- and
- limiting an amount of the lubricating oil supplied to the wet rotary clutch to a predetermined amount when a non-driving shift range is selected and when the meshing operation is incomplete.
4 more elements
A transmission apparatus, comprising:
- a clutch means for transmitting power from an input to an output when in an engaged position;
- a lubricator means for supplying a lubricating oil to engage the clutch means;
- and
- a synchromesh means for performing a meshing operation while the clutch means is in the disengaged position;
- a controller configured to increase a revolution speed of the input of the clutch means before the synchromesh means begins performing the meshing operation;
- and
- a means for selecting between a driving shift range and a non-driving shift range;
- and
- wherein the controller is further configured to limit an amount of the lubricating oil supplied to the clutch means to be less than a predetermined amount when the non-driving shift range is selected and when the meshing operation is incomplete.
6 more elements
Dependencies are inferred from the claim text.