Power transmission apparatus for vehicle
First Claim
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1. A power transmission apparatus for a vehicle, comprising:
- a first input shaft disposed with a plurality of input gears and selectively connected with an output side of a power source by a first clutch;
a second input shaft disposed with a plurality of input gears and selectively connected with the output side of the power source by a second clutch, the second input shaft being axially disposed with the first input shaft;
a first shifting output device including at least two shifting gears disposed on a first output shaft and first and second intermediate gears fixed to the first output shaft, the at least two shifting gears disposed on the first output shaft being externally engaged with a first group of the input gears on the first and second input shafts, the at least two shifting gears disposed on the first output shaft being selectively synchronized with the first output shaft;
a second shifting output device including at least two shifting gears disposed on a second output shaft and a third intermediate gear fixed to the second output shaft, the at least two shifting gears disposed on the second output shaft being externally engaged with a second group of the input gears on the first and second input shafts, the at least two shifting ears disposed on the second output shaft being selectively synchronized with the second output shaft;
a first idle unit including a first idle input gear fixed to a first idle shaft and two shifting gears externally engaged with the first and second intermediate gears and selectively synchronized with the first idle shaft, the first idle input gear being externally engaged with one of the at least two shifting gears on the first output shaft;
a second idle unit including a second idle input gear fixed to a second idle shaft and a shifting gear externally engaged with the third intermediate gear and selectively synchronized with the second idle shaft, the second idle input gear being externally engaged with one of the at least two shifting gears on the second output shaft; and
a reverse speed unit including first and second reverse idle gears fixed to a reverse idle shaft and a reverse speed shifting gear disposed on and selectively synchronized with a reverse output shaft, the reverse idle shaft being coaxial with and rotatable with respect to the second output shaft, the reverse speed shifting gear receiving a torque of the second input shaft through the first and second reverse idle gears.
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Abstract
Ten forward speeds and one reverse speed are achieved by a power transmission apparatus for a vehicle including a double clutch, a plurality of input, output, and idle shafts, a plurality of gears fixed to or rotatable on the shafts, a plurality of synchronizers selectively synchronizing gears to the shafts.
30 Citations
13 Claims
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1. A power transmission apparatus for a vehicle, comprising:
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a first input shaft disposed with a plurality of input gears and selectively connected with an output side of a power source by a first clutch; a second input shaft disposed with a plurality of input gears and selectively connected with the output side of the power source by a second clutch, the second input shaft being axially disposed with the first input shaft; a first shifting output device including at least two shifting gears disposed on a first output shaft and first and second intermediate gears fixed to the first output shaft, the at least two shifting gears disposed on the first output shaft being externally engaged with a first group of the input gears on the first and second input shafts, the at least two shifting gears disposed on the first output shaft being selectively synchronized with the first output shaft; a second shifting output device including at least two shifting gears disposed on a second output shaft and a third intermediate gear fixed to the second output shaft, the at least two shifting gears disposed on the second output shaft being externally engaged with a second group of the input gears on the first and second input shafts, the at least two shifting ears disposed on the second output shaft being selectively synchronized with the second output shaft; a first idle unit including a first idle input gear fixed to a first idle shaft and two shifting gears externally engaged with the first and second intermediate gears and selectively synchronized with the first idle shaft, the first idle input gear being externally engaged with one of the at least two shifting gears on the first output shaft; a second idle unit including a second idle input gear fixed to a second idle shaft and a shifting gear externally engaged with the third intermediate gear and selectively synchronized with the second idle shaft, the second idle input gear being externally engaged with one of the at least two shifting gears on the second output shaft; and a reverse speed unit including first and second reverse idle gears fixed to a reverse idle shaft and a reverse speed shifting gear disposed on and selectively synchronized with a reverse output shaft, the reverse idle shaft being coaxial with and rotatable with respect to the second output shaft, the reverse speed shifting gear receiving a torque of the second input shaft through the first and second reverse idle gears. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification