Hybrid drive system and vehicle equipped therewith

A vehicle, comprising:

• an internal combustion engine;
• a drive wheel;
• and
• a hybrid drive system, wherein the hybrid drive system has a first electric motor, a power distribution planetary gear, a second electric motor and a plurality of speed steps transmission, and output of the second electric motor is input to the output portion, a drive power from the second electric motor is adjusted through the plurality of speed steps transmission, and a drive power of the internal combustion engine, which is distributed through the power distribution planetary gear, is outputted to the output portion but not via the transmission.

A hybrid drive system which transmits output from an internal combustion engine to an output portion and inputs output from a second electric motor to the output portion, the hybrid drive system comprising:

• a first electric motor;
• a power distribution planetary gear, the power distribution planetary gear having a first rotation element to which output from the internal combustion engine is transmitted, a second rotation element that is operatively linked with the first electric motor, and a third rotation element that is operatively linked with the output portion;
• and
• a transmission interposed between the second electric motor and the output portion, an output shaft of the internal combustion engine and the output portion are arranged on an axis, and the first electric motor, the power distribution planetary gear, the second electric motor and the transmission are arranged on the axis and in order rearward from the internal combustion engine, wherein the third rotation element is not operatively linked with the output portion via the transmission.

A vehicle, comprising:

• an internal combustion engine;
• a drive wheel;
• and
• a hybrid drive system, wherein the hybrid drive system has a first electric motor, a power distribution planetary gear, a second electric motor and a transmission, and the power distribution planetary gear has a first rotation element to which output from the internal combustion engine is transmitted, a second rotation element that is operatively linked with the first electric motor, and a third rotation element that is operatively linked with an output portion, and a transmission interposed between the second electric motor and the output portion, wherein the internal combustion engine is arranged such that an output shaft thereof is oriented in a longitudinal direction of a vehicle body, in a front part of the vehicle body, and behind, in the longitudinal direction, the internal combustion engine, the first electric motor, the power distribution planetary gear, the second electric motor and the transmission are arranged axially and in order rearward from the internal combustion engine, and the drive wheel operatively linked with the output portion is a rear wheel, and wherein the third rotation element is not operatively linked with the output portion via the transmission.

A vehicle, comprising:

• an internal combustion engine;
• a drive wheel;
• and
• a hybrid drive system, wherein the hybrid drive system has a first electric motor, a power distribution planetary gear, a second electric motor and a transmission, and the power distribution planetary gear has a first rotation element to which output from the internal combustion engine is transmitted, a second rotation element that is operatively linked with the first electric motor, and a third rotation element that is operatively linked with an output portion, and a transmission interposed between the second electric motor and the output portion, wherein in the power distribution planetary gear, output of the internal combustion engine is output to the output portion by controlling the first electric motor, and then, output of the second electric motor is input to the output portion by changing a speed to a plurality of steps in the transmission, and the output portion is operatively linked with the drive wheel, and the internal combustion engine is arranged such that an output shaft thereof is oriented in a longitudinal direction of a vehicle body, in a front part of the vehicle body, and in a part behind, in the longitudinal direction, the internal combustion engine, the first electric motor, the power distribution planetary gear, the second electric motor and the transmission are arranged axially and in order rearward from the internal combustion engine, and the drive wheel is operatively linked with the output portion is a rear wheel, and wherein the third rotation element is not operatively linked with the output portion via the transmission.

A hybrid drive system which transmits output from an internal combustion engine to an output portion and inputs output from a second electric motor to the output portion, the hybrid drive system comprising:

• a first electric motor;
• a power distribution planetary gear, wherein output of the internal combustion engine is output to the output portion by controlling the first electric motor;
• and
• a transmission interposed between the second electric motor and the output portion, wherein a crank shaft of the internal combustion engine and the output portion are arranged on an axis, the first electric motor, the power distribution planetary gear, the second electric motor and the transmission are arranged on the axis and in order rearward from the internal combustion engine, and the output of the internal combustion engine, which is distributed through the power distribution planetary gear, is outputted to the output portion but not via the transmission.

A hybrid drive system, comprising:

• a first electric motor;
• a power distribution planetary gear;
• a second electric motor;
• and
• a transmission, wherein in the power distribution planetary gear, output of an internal combustion engine is output to an output portion as controlled by the first electric motor, and output of the second electric motor is input to the output portion by changing a speed to a plurality of steps in the transmission, and the output of the internal combustion engine, which is distributed through the power distribution planetary gear, is outputted to the output portion but not via the transmission.