Power output apparatus and hybrid vehicle
First Claim
1. A power output apparatus for outputting a power to a drive shaft, said power output apparatus comprising:
- an internal combustion engine;
a first motor capable of inputting and outputting a power;
a second motor capable of inputting and outputting a power;
a power distribution and integration mechanism including a first element connected to a rotating shaft of said first motor, a second element connected to a rotating shaft of said second motor, and a third element connected to an engine shaft of said internal combustion engine, said power distribution and integration mechanism configured such that these three elements can be differentially rotated with each other;
a transmission mechanism including;
a transmission differential rotation mechanism having an input element, a fixing element, and an output element that is connected to said drive shaft, and configured such that said input element and said output element can be differentially rotated with each other; and
a coupling mechanism capable of selectively coupling one of or both of said first element and said second element of said power distribution and integration mechanism with said input element of said transmission differential rotation mechanism;
a fixing mechanism capable of non-rotatably fixing one of a rotating shaft of said first motor and a rotating shaft of said second motor; and
a control module that controls said fixing mechanism so that a rotating shaft of said first or second motor corresponding to said fixing mechanism is non-rotatably fixed when said second or first element of said power distribution and integration mechanism connected to said second or first motor that does not correspond to said fixing mechanism is coupled with said input element of said transmission differential rotation mechanism.
1 Assignment
0 Petitions
Accused Products
Abstract
A hybrid vehicle includes an engine, motors, and a power distribution and integration mechanism that are coaxially arranged with respect to each other. The hybrid vehicle also includes a transmission including a transmission differential rotation mechanism that is a single pinion planetary gear mechanism having a sun gear, a ring gear, and a carrier that is connected to a drive shaft, and that is configured such that these three elements can differentially rotate with each other; and a clutch capable of selectively coupling one of or both of the carrier and the sun gear of the power distribution and integration mechanism with the sun gear of the transmission differential rotation mechanism.
28 Citations
13 Claims
-
1. A power output apparatus for outputting a power to a drive shaft, said power output apparatus comprising:
-
an internal combustion engine; a first motor capable of inputting and outputting a power; a second motor capable of inputting and outputting a power; a power distribution and integration mechanism including a first element connected to a rotating shaft of said first motor, a second element connected to a rotating shaft of said second motor, and a third element connected to an engine shaft of said internal combustion engine, said power distribution and integration mechanism configured such that these three elements can be differentially rotated with each other; a transmission mechanism including;
a transmission differential rotation mechanism having an input element, a fixing element, and an output element that is connected to said drive shaft, and configured such that said input element and said output element can be differentially rotated with each other; and
a coupling mechanism capable of selectively coupling one of or both of said first element and said second element of said power distribution and integration mechanism with said input element of said transmission differential rotation mechanism;a fixing mechanism capable of non-rotatably fixing one of a rotating shaft of said first motor and a rotating shaft of said second motor; and a control module that controls said fixing mechanism so that a rotating shaft of said first or second motor corresponding to said fixing mechanism is non-rotatably fixed when said second or first element of said power distribution and integration mechanism connected to said second or first motor that does not correspond to said fixing mechanism is coupled with said input element of said transmission differential rotation mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A power output apparatus for outputting a power to a drive shaft, said power output apparatus comprising:
-
an internal combustion engine; a first motor that is arranged approximately coaxially with said internal combustion engine, said first motor capable of inputting and outputting a power; a second motor that is arranged approximately coaxially with said internal combustion engine, said second motor capable of inputting and outputting a power; a power distribution and integration mechanism that is arranged between said first motor and said second motor in an approximately coaxial condition with respect to both motors, and includes a first element connected to a rotating shaft of said first motor, a second element connected to a rotating shaft of said second motor, and a third element connected to an engine shaft of said internal combustion engine, said power distribution and integration mechanism configured such that these three elements can be differentially rotated with each other; and a transmission mechanism including;
a transmission differential rotation mechanism having an input element, a fixing element, and an output element that is connected to said drive shaft, said transmission differential rotation mechanism configured such that said input element and said output element can be differentially rotated with each other; and
a coupling mechanism capable of selectively coupling one of or both of said first element and said second element of said power distribution and integration mechanism with said input element of said transmission differential rotation mechanism;wherein said coupling mechanism of said transmission mechanism includes; a transmission shaft that extends approximately parallel to a rotating shaft of said first and second motors, said transmission shaft connected to said input element of said transmission differential rotation mechanism; a first parallel shaft-type gear train connected to said first element; a second parallel shaft-type gear train connected to said second element; and a switching mechanism capable of selectively switching between a first element coupling state in which said first parallel shaft-type gear train and said transmission shaft are coupled, a second element coupling state in which said second parallel shaft-type gear train and said transmission shaft are coupled, and a both-elements coupling state in which both of said first parallel shaft-type gear train and said second parallel shaft-type gear train are coupled with said transmission shaft.
-
Specification