Powertrain unit

Claims

1. A powertrain unit mounted on a vehicle frame, comprising: a first engine; a first power transmission mechanism for transmitting the driving force of the first engine to a drive shaft supporting a drive wheel; a first mount for fixing the first engine in a position overlapping with the mounted first engine; and a second mount for fixing the first power transmission mechanism in a position overlapping with the mounted first power transmission mechanism; A second engine is positioned on the vehicle frame in a location where the first engine can be mounted, A power generation mechanism that generates electricity using the driving force of the second engine, The drive motor and It includes a second drive force transmission mechanism that transmits the driving force of the drive motor to the drive shaft, The second engine, the power generation mechanism, the drive motor, and the second drive force transmission mechanism are combined into one to form the powertrain unit. The powertrain unit is positioned so as to overlap the first mount and the second mount. The portion of the powertrain unit relating to the second engine is fixed to the first mount. The portion of the powertrain unit other than the portion relating to the second engine is fixed to the second mount. The first shaft connecting the drive motor and the second drive force transmission mechanism is positioned so as to overlap with the second mount in a plan view. The power generation mechanism includes a transmission that changes the rotational speed of the second engine and outputs the driving force of the second engine, Includes a generator that generates electricity using the driving force of the second engine transmitted via the transmission, A powertrain unit in which a second shaft connecting the generator and the transmission is arranged to be aligned with the first shaft in the longitudinal direction of the vehicle, and the extension of the rotation axis of the first shaft and the extension of the rotation axis of the second shaft overlap each other.

2. In a case where the first engine and the first power transmission mechanism can be mounted on the vehicle frame at a position at the front of the vehicle, and the first engine and the first power transmission mechanism can be mounted on the vehicle frame in that order from the front of the vehicle, The powertrain unit is assembled with the second engine, the power generation mechanism, the second drive force transmission mechanism, and the drive motor arranged in a line from the front of the vehicle, The powertrain unit according to claim 1, wherein the portion of the powertrain unit relating to the second drive force transmission mechanism is fixed to the second mount.

3. In a case where the first engine and the first power transmission mechanism can be mounted on the vehicle frame at a position at the front of the vehicle, and the first engine and the first power transmission mechanism can be mounted on the vehicle frame in that order from the front of the vehicle, The powertrain unit is assembled with the second engine, the power generation mechanism, the drive motor, and the second drive force transmission mechanism arranged in a line from the front of the vehicle. The powertrain unit according to claim 1, wherein the portion of the powertrain unit relating to the drive motor is fixed to the second mount.

4. In a case where the first engine and the first power transmission mechanism can be mounted on the vehicle frame at a position at the front of the vehicle, and the first engine and the first power transmission mechanism can be mounted on the vehicle frame in that order from the front of the vehicle, The power generation mechanism includes a transmission that changes the rotational speed of the second engine and outputs the driving force of the second engine, Includes a generator that generates electricity using the driving force of the second engine transmitted via the transmission, The transmission and the second drive force transmission mechanism combine to form a first integrated unit. The drive motor and the generator are combined in a state where they are aligned in the width direction of the vehicle, forming a second integrated object. The powertrain unit is assembled with the second engine, the first integrated unit, and the second integrated unit arranged in that order from the front of the vehicle. The powertrain unit according to claim 1, wherein the portion of the powertrain unit relating to the second integral is fixed to the second mount.

5. A differential gear is positioned on the drive shaft at the front of the vehicle that transmits the driving force of the first power transmission mechanism, and the output side of the driving force of the first power transmission mechanism and the input side of the driving force to the differential gear can be connected by a first propeller shaft, The powertrain unit according to any one of claims 2 to 4, wherein the output side of the driving force of the second driving force transmission mechanism and the input side of the driving force of the differential gear are connected by a second propeller shaft.

6. When the distance between the first mount and the second mount in the longitudinal direction of the vehicle is A, and the distance between the second mount and the position of the vehicle frame that is the center in the longitudinal direction of the vehicle is B, if the relationship A > B is satisfied, The powertrain unit according to any one of claims 2 to 4, wherein the distance in the longitudinal direction of the vehicle between the position fixed by the first mount of the powertrain unit and the position fixed by the second mount is A, and the distance in the longitudinal direction of the vehicle between the position fixed by the second mount of the powertrain unit and the position that is the central part of the vehicle frame is B.

7. The power generation mechanism includes a transmission that changes the rotational speed of the second engine and outputs the driving force of the second engine, Includes a generator that generates electricity using the driving force of the second engine transmitted via the transmission, The powertrain unit according to claim 7, wherein the second shaft connecting the generator and the transmission is arranged to be aligned with the first shaft in the longitudinal direction of the vehicle, and the vertical distance between the first shaft and the second mount in the vehicle is shorter than the vertical distance between the second shaft and the second mount.

8. The drive motor and the second drive force transmission mechanism are connected by a first shaft. The second driving force transmission mechanism is, A first gear supported on the first shaft, A second gear is supported by a third shaft, which is different from the first shaft and the second propeller shaft, and engages with the first gear. A third gear, different from the second gear, is pivotally supported on the third shaft, It includes a fourth gear that is pivotally supported on the second propeller shaft and engages with the third gear, The powertrain unit according to claim 5, wherein the first shaft is positioned closer to the second mount in the vertical direction of the vehicle than the third shaft and the second propeller shaft.

9. The portion of the powertrain unit relating to the second drive force transmission mechanism has a protrusion that extends in the width direction of the vehicle relative to the portion of the powertrain unit other than the portion relating to the second drive force transmission mechanism. The powertrain unit according to claim 2, wherein a reinforcing member is interposed between the portion of the powertrain unit relating to the drive motor and the protruding portion.

10. A powertrain unit mounted on a vehicle frame, comprising: a first engine; a first power transmission mechanism for transmitting the driving force of the first engine to a drive shaft supporting a drive wheel; a first mount for fixing the first engine in a position overlapping with the mounted first engine; and a second mount for fixing the first power transmission mechanism in a position overlapping with the mounted first power transmission mechanism; A second engine is positioned on the vehicle frame in a location where the first engine can be mounted, A power generation mechanism that generates electricity using the driving force of the second engine, The drive motor and It includes a second drive force transmission mechanism that transmits the driving force of the drive motor to the drive shaft, The second engine, the power generation mechanism, the drive motor, and the second drive force transmission mechanism are combined into one to form the powertrain unit. The powertrain unit is positioned so as to overlap the first mount and the second mount. The portion of the powertrain unit relating to the second engine is fixed to the first mount. The portion of the powertrain unit other than the portion relating to the second engine is fixed to the second mount. In a case where the first engine and the first power transmission mechanism can be mounted on the vehicle frame at a position at the front of the vehicle, and the first engine and the first power transmission mechanism can be mounted on the vehicle frame in that order from the front of the vehicle, The power generation mechanism includes a transmission that changes the rotational speed of the second engine and outputs the driving force of the second engine, Includes a generator that generates electricity using the driving force of the second engine transmitted via the transmission, The transmission and the second drive force transmission mechanism combine to form a first integrated unit. The drive motor and the generator are combined in a state where they are aligned in the width direction of the vehicle, forming a second integrated object. The powertrain unit is assembled with the second engine, the first integrated unit, and the second integrated unit arranged in that order from the front of the vehicle. A powertrain unit in which the portion relating to the second integrated part of the powertrain unit is fixed to the second mount.