Hybrid vehicle

Abstract

To provide a hybrid vehicle capable of achieving high acceleration performance.SOLUTION: The hybrid vehicle 100 includes an engine 14, a transaxle 15, a propeller shaft 16, and a compressor 19. In the hybrid vehicle 100, the engine 14 is disposed in front of the driver's seat 12 and the passenger seat 13. In the hybrid vehicle 100, the transaxle 15 is disposed behind the driver's seat 12 and the passenger seat 13. In the hybrid vehicle 100, the propeller shaft 16 passes between the driver's seat 12 and the passenger seat 13 and connects the engine 14 and the transaxle 15. In the hybrid vehicle 100, the compressor 19 is adjacent to the transaxle 15.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to hybrid vehicles. [Background technology]

[0002] Patent Document 1 discloses a hybrid vehicle, which is a three-seater sports car. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-155829 Summary of the Invention [Problem to be solved by the invention]

[0004] Sports car-type vehicles require high acceleration performance. To improve the acceleration performance of hybrid vehicles, there is room for improvement in the layout of the devices equipped in the hybrid vehicle. [Means for solving the problem]

[0005] A hybrid vehicle that solves the above problems has a motor generator that assists the rotation output by the engine. This hybrid vehicle includes a transaxle that includes the motor generator and a transmission mechanism that transmits the rotation output by the engine to rear wheels. This hybrid vehicle includes a propeller shaft that transmits the rotation output by the engine to the transaxle. This hybrid vehicle includes a compressor that compresses refrigerant gas for regulating the temperature in the passenger compartment. In the transaxle, the transmission mechanism is connected to the engine through the propeller shaft. In the transaxle, the motor generator is connected to the propeller shaft between the engine and the transmission mechanism in the fore-and-aft direction of the vehicle. In this hybrid vehicle, the engine is located in front of the driver's seat and passenger seat. In this hybrid vehicle, the transaxle is located behind the driver's seat and passenger seat. In this hybrid vehicle, the propeller shaft passes between the driver's seat and passenger seat and connects the engine to the transaxle. In this hybrid vehicle, the compressor is adjacent to the transaxle. [Effects of the Invention]

[0006] The hybrid vehicle described above can achieve high acceleration performance. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic diagram showing the arrangement of a propeller shaft and its peripheral devices when the hybrid vehicle according to the embodiment is viewed from above. [Figure 2] FIG. 2 is a schematic diagram showing the arrangement of the propeller shaft and its peripheral devices when the hybrid vehicle according to the embodiment is viewed from the side. [Figure 3] FIG. 3 is a schematic diagram showing a transaxle provided in the hybrid vehicle of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment of a hybrid vehicle will be described below with reference to FIGS. 1 to 3, directions are indicated by arrows. In FIGS. 1 to 3, Fr indicates the forward direction of hybrid vehicle 100. In FIGS. 1 to 3, Rr indicates the rearward direction of hybrid vehicle 100. In FIGS. 1 and 3, Rh indicates the right side when viewed from a passenger facing forward of hybrid vehicle 100. In FIGS. 1 and 3, Lh indicates the left side when viewed from a passenger facing forward of hybrid vehicle 100.

[0009] <Arrangement of the engine 14, transaxle 15, and propeller shaft 16> Fig. 1 shows the arrangement of the propeller shaft 16 and its peripheral devices when the hybrid vehicle 100 is viewed from above. Fig. 2 shows the arrangement of the propeller shaft 16 and its peripheral devices when the hybrid vehicle 100 is viewed from the direction Lh in Fig. 1.

[0010] The hybrid vehicle 100 includes an engine 14. As shown in Figures 1 and 2, the engine 14 is disposed in front of the driver's seat 12 and the passenger's seat 13. The hybrid vehicle 100 includes a transaxle 15. As shown in Figures 1 and 2, the transaxle 15 is disposed behind the driver's seat 12 and the passenger's seat 13.

[0011] The hybrid vehicle 100 includes a propeller shaft 16. As shown in Figures 1 and 2, the propeller shaft 16 passes between the driver's seat 12 and the passenger's seat 13 and connects the engine 14 and the transaxle 15. The propeller shaft 16 transmits the rotation output by the engine 14 to the transaxle 15.

[0012] <Transaxle 15 configuration> 3 shows the state of transaxle 15 when hybrid vehicle 100 is viewed from above. As shown in FIG. 3, transaxle 15 includes a motor generator 20 and a transmission mechanism 21.

[0013] 1 and 2, the propeller shaft 16 connects the engine 14 and the transaxle 15. In the transaxle 15, the transmission mechanism 21 is connected to the engine 14 through the propeller shaft 16.

[0014] The transmission mechanism 21 changes the speed of the rotation of the engine 14 transmitted through the propeller shaft 16. For example, the transmission mechanism 21 is provided with a plurality of planetary gear mechanisms that constitute a plurality of gear stages with different gear ratios. The transmission mechanism 21 changes the speed of the rotation from the propeller shaft 16 and outputs it. In this case, the transmission mechanism 21 can change the gear ratio by switching between gear stages.

[0015] The manner in which transmission mechanism 21 changes the speed of the rotation from propeller shaft 16 is not limited to the above manner. For example, transmission mechanism 21 may include two conical pulleys and a belt connected to both pulleys. In this case, transmission mechanism 21 changes the speed of the rotation from propeller shaft 16 based on the difference in circumferential length of the two pulleys to which the belt is connected. In this case, transmission mechanism 21 can change the gear ratio by changing the winding radius of the belt around each pulley.

[0016] 3, the speed change mechanism 21 is connected to a transmission mechanism 22. The transmission mechanism 22 transmits the rotation transmitted from the speed change mechanism 21 to a differential gear 23. The transmission mechanism 22 transmits the rotation from the speed change mechanism 21 in the direction of the arrow in Fig. 3. For example, the transmission mechanism 22 has multiple gears arranged along the dotted arrow so that the rotation is transmitted in the direction of the dotted arrow in Fig. 3. Furthermore, the transmission mechanism 22 has a shaft or multiple gears arranged along the solid arrow so that the rotation transmitted in the direction of the dotted arrow is transmitted in the direction of the solid arrow in Fig. 3.

[0017] As shown in Fig. 3, the differential gear 23 is connected to the drive shaft 18. Furthermore, as shown in Fig. 1, the drive shaft 18 is connected to the left and right rear wheels 11. The differential gear 23 transmits the rotation transmitted from the transmission mechanism 22 to the left and right rear wheels 11 via the drive shaft 18. At this time, the differential gear 23 distributes the rotation transmitted to the left and right rear wheels 11 in accordance with the movement of the hybrid vehicle 100.

[0018] In this way, the rotation output by the engine 14 is transmitted to the rear wheels 11 via the speed change mechanism 21, the transmission mechanism 22, the differential gear 23, and the drive shaft 18. At this time, the speed change mechanism 21 changes the rotation output by the engine 14 and transmits it to the rear wheels 11.

[0019] In the motor generator 20 shown in Fig. 3, the portion indicated by the dotted line indicates the internal structure of the motor generator 20. As shown in Fig. 3, the motor generator 20 includes a rotor 25 having a magnet, and a stator 24 that is installed so as to surround the rotor 25. The rotor 25 is connected to the propeller shaft 16.

[0020] Motor generator 20 assists in the rotational output by engine 14. Motor generator 20 rotates rotor 25 around propeller shaft 16 by supplying electricity to stator 24. Then, as rotor 25 rotates around propeller shaft 16, the rotation transmitted from engine 14 to transmission mechanism 21 via propeller shaft 16 is amplified.

[0021] The motor generator 20 can also generate electricity using the rotation output by the engine 14. In the motor generator 20, the rotor 25 rotates as the propeller shaft 16 rotates due to the engine 14, thereby generating electricity.

[0022] As shown in Fig. 3, in transaxle 15, motor generator 20 is connected to propeller shaft 16 at a position forward of transmission mechanism 21 in the vehicle. As shown in Figs. 1 and 2, motor generator 20 is disposed between engine 14 and transmission mechanism 21 in the vehicle longitudinal direction. In other words, motor generator 20 is connected to propeller shaft 16 between engine 14 and transmission mechanism 21 in the vehicle longitudinal direction.

[0023] 3, a first clutch 26 is provided in a portion of the propeller shaft 16 between the engine 14 and the motor generator 20. The first clutch 26 can disconnect the portion of the propeller shaft 16 between the engine 14 and the motor generator 20. When the motor generator 20 rotates the rotor 25 while the first clutch 26 disconnects the engine 14 from the motor generator 20, the rear wheels 11 can be driven by the driving force of the motor generator 20 without relying on the action of the engine 14.

[0024] 3, a second clutch 27 is provided in a portion of the propeller shaft 16 between the motor generator 20 and the transmission mechanism 21. The second clutch 27 can disconnect the portion of the propeller shaft 16 between the motor generator 20 and the transmission mechanism 21.

[0025] <Arrangement of Compressor 19 and Main Battery 17> The hybrid vehicle 100 includes a compressor 19. In the hybrid vehicle 100, the compressor 19 compresses a refrigerant gas for adjusting the temperature inside the vehicle cabin.

[0026] As shown in Figures 1 and 3, the compressor 19 is disposed adjacent to the transaxle 15. Furthermore, as shown in Figures 1 and 3, the compressor 19 is disposed adjacent to the motor generator 20 in the transaxle 15. Specifically, as shown in Figures 1 and 3, the compressor 19 is disposed to the side of the motor generator 20 in the vehicle width direction. Note that, as shown in Figures 1 and 3, in the hybrid vehicle 100 of this embodiment, the compressor 19 is disposed on the Rh side of the motor generator 20. In the hybrid vehicle 100, the compressor 19 may also be disposed on the Lh side of the motor generator 20.

[0027] The hybrid vehicle 100 includes a main battery 17. As shown in FIG. The main battery 17 stores electricity. For example, the main battery 17 stores electricity generated by the motor generator 20. The main battery 17 also supplies the stored electricity to the motor generator 20. The motor generator 20 supplies the electricity from the main battery 17 to the stator 24, thereby causing the rotor 25 to rotate.

[0028] <Arrangement of devices relative to the rotation axes of the front wheels 10 and the rear wheels 11> 1, the dashed dotted lines shown on the front wheels 10 are front wheel rotation axes 28. The front wheel rotation axes 28 are rotation axes of the left and right front wheels 10.

[0029] 1, the dotted line shown on the engine 14 indicates the position of the center of gravity of the engine 14 in the front-to-rear direction of the vehicle. As shown in FIG. 1, the dotted line shown on the engine 14 is located rearward of the front wheel rotation axis 28. In this way, in the hybrid vehicle 100, the engine 14 is disposed so that the center of gravity of the engine 14 is located rearward of the rotation axis of the front wheels 10.

[0030] 1, the dashed dotted lines shown on the rear wheels 11 are rear wheel rotation axes 29. The rear wheel rotation axes 29 are rotation axes of the left and right rear wheels 11. 1, motor generator 20 is disposed forward of rear wheel rotary shaft 29. Accordingly, in hybrid vehicle 100, compressor 19, which is disposed laterally of motor generator 20 in the vehicle width direction, is disposed forward of rear wheel rotary shaft 29.

[0031] In this way, in the hybrid vehicle 100, the center of gravity of the engine 14, the compressor 19, and the motor generator 20 are concentrated between the front wheel rotation shaft 28 and the rear wheel rotation shaft 29.

[0032] <Operation of this embodiment> A rear-wheel drive vehicle can easily achieve traction if heavy objects are provided at the rear of the vehicle. In the hybrid vehicle 100, the transaxle 15 and the compressor 19 are heavy objects. In the hybrid vehicle 100 described above, the transaxle 15 and the compressor 19 are disposed at the rear of the vehicle, thereby increasing the weight at the rear of the vehicle.

[0033] <Effects of this embodiment> (1) The hybrid vehicle 100 described above can achieve high acceleration performance. (2) Hybrid vehicle 100 includes main battery 17 that stores electricity and supplies the stored electricity to motor generator 20. In hybrid vehicle 100, main battery 17 is disposed above transaxle 15.

[0034] In the hybrid vehicle 100, the main battery 17 is a heavy object, similar to the transaxle 15 and the compressor 19. In the hybrid vehicle 100 described above, the main battery 17 further increases the weight at the rear of the vehicle. In this way, the hybrid vehicle 100 described above can achieve higher acceleration performance.

[0035] (3) In the hybrid vehicle 100, the compressor 19 is adjacent to the motor generator 20 in the transaxle 15. In a vehicle, the closer a heavy object is to the passenger compartment, the more operability is improved. In the hybrid vehicle 100 described above, the compressor 19, which is a heavy object, is disposed adjacent to the motor generator 20, which is located in the transaxle 15 near the passenger compartment. This improves the operability of the hybrid vehicle 100 described above.

[0036] (4) In the hybrid vehicle 100, the compressor 19 is disposed laterally of the motor generator 20 in the vehicle width direction. (5) In the hybrid vehicle 100, the motor generator 20 is disposed forward of the rotation axis of the rear wheels 11. In the hybrid vehicle 100, the engine 14 is disposed so that the center of gravity of the engine 14 is located rearward of the rotation axis of the front wheels 10.

[0037] In hybrid vehicle 100, motor generator 20 is located forward of rear wheel rotation shaft 29, which is the rotation shaft of rear wheels 11, and therefore compressor 19 is also located forward of rear wheel rotation shaft 29. In this way, in hybrid vehicle 100, the position of compressor 19 is brought closer to the vehicle interior by devising the arrangement of motor generator 20.

[0038] Furthermore, in the hybrid vehicle 100, the engine 14 is a heavy object, similar to the compressor 19. In the hybrid vehicle 100 described above, the engine 14 is disposed so that the center of gravity is located closer to the passenger compartment than the rotation axis of the front wheels 10.

[0039] In this way, the hybrid vehicle 100 has the compressor 19, which is a heavy object, and the engine 14 concentrated as close as possible to the vehicle interior located between the front wheels 10 and the rear wheels 11. This allows the hybrid vehicle 100 to have improved operability.

[0040] <Example of change> This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility.

[0041] As shown in Fig. 1, the hybrid vehicle 100 has the driver's seat 12 located on the Lh side of Fig. 1 and the passenger seat 13 located on the Rh side of Fig. 1. The positions of the driver's seat 12 and the passenger seat 13 may be reversed.

[0042] In the hybrid vehicle 100 described above, as shown in FIG. 3 , the rotation output by the engine 14 is transmitted in the following order: the speed change mechanism 21, the transmission mechanism 22, the differential gear 23, the drive shaft 18, and the rear wheels 11. In the hybrid vehicle 100, the manner in which the rotation output by the engine 14 is transmitted to the rear wheels 11 is not limited to the above embodiment. For example, if the drive shaft 18 is disposed behind the speed change mechanism 21, the hybrid vehicle 100 does not need to include the transmission mechanism 22.

[0043] The hybrid vehicle 100 described above includes the first clutch 26 and the second clutch 27. The hybrid vehicle 100 does not necessarily have to include either or both of the first clutch 26 and the second clutch 27.

[0044] The hybrid vehicle 100 described above includes a main battery 17. The hybrid vehicle 100 does not necessarily have to include a main battery 17. Furthermore, in the above-described hybrid vehicle 100, the main battery 17 is disposed above the transaxle 15. The position of the main battery 17 provided in the hybrid vehicle 100 is not limited to that in the above-described embodiment. For example, the main battery 17 may be disposed below the transaxle 15. Furthermore, for example, the main battery 17 may be disposed in front of the driver's seat 12 and the passenger's seat 13.

[0045] In the hybrid vehicle 100 described above, the compressor 19 is adjacent to the motor generator 20. Also, in the hybrid vehicle 100 described above, the compressor 19 is disposed laterally in the vehicle width direction of the motor generator 20. In the hybrid vehicle 100, the position at which the compressor 19 is disposed is not limited to that described in the above embodiment.

[0046] For example, in hybrid vehicle 100, compressor 19 may be disposed adjacent to transmission mechanism 21 instead of motor generator 20. For example, in hybrid vehicle 100, compressor 19 may be disposed adjacent to and above motor generator 20. For example, in hybrid vehicle 100, compressor 19 may be disposed adjacent to and below motor generator 20.

[0047] In the above-described hybrid vehicle 100, the motor generator 20 is disposed forward of the rear wheel rotary shaft 29. In the hybrid vehicle 100, the motor generator 20 does not have to be disposed forward of the rear wheel rotary shaft 29. For example, the motor generator 20 may be disposed rearward of the rear wheel rotary shaft 29.

[0048] In the hybrid vehicle 100 described above, the engine 14 is disposed so that the center of gravity of the engine 14 is located rearward of the front wheel rotation shaft 28. In the hybrid vehicle 100, the position at which the engine 14 is disposed is not limited to that described in the above embodiment. For example, the engine 14 may be disposed so that the center of gravity of the engine 14 is located forward of the front wheel rotation shaft 28.

[0049] <Additional Notes> The technical ideas that can be understood from the above-described embodiment and modified examples will be described. [Appendix 1] A hybrid vehicle in which a motor generator assists the rotational output of an engine, comprising: a transaxle including the motor generator and a transmission mechanism that transmits the rotation output by the engine to rear wheels; a propeller shaft that transmits the rotation output by the engine to the transaxle; and a compressor that compresses refrigerant gas for regulating the temperature in the passenger compartment, wherein in the transaxle, the transmission mechanism is connected to the engine through the propeller shaft, and the motor generator is connected to the propeller shaft between the engine and the transmission mechanism in the fore-and-aft direction of the vehicle, the engine is located in front of the driver's seat and passenger seat, the transaxle is located behind the driver's seat and passenger seat, the propeller shaft passes between the driver's seat and passenger seat and connects the engine and transaxle, and the compressor is adjacent to the transaxle.

[0050] [Appendix 2] A hybrid vehicle as described in [Appendix 1], comprising a main battery that stores electricity and supplies the stored electricity to the motor generator, the main battery being positioned above the transaxle.

[0051] [Appendix 3] A hybrid vehicle according to [Appendix 1] or [Appendix 2], wherein the compressor is adjacent to the motor generator in the transaxle. [Appendix 4] The hybrid vehicle according to [Appendix 3], wherein the compressor is disposed laterally of the motor generator in the vehicle width direction.

[0052] [Appendix 5] A hybrid vehicle as described in [Appendix 3] or [Appendix 4], wherein the motor generator is positioned forward of the rotation axis of the rear wheels, and the engine is positioned so that the center of gravity of the engine is located rearward of the rotation axis of the front wheels. [Explanation of symbols]

[0053] 10...Front wheel 11...Rear wheel 12...Driver's seat 13…Passenger seat 14...Engine 15...Transaxle 16...Propeller shaft 17...Main battery 18...Drive shaft 19...Compressor 20...Motor generator 21...Transmission mechanism 22...Transmission mechanism 23...Differential gear 24...Stator 25...Rotor 26...First clutch 27...Second clutch 28...Front wheel rotation axis 29...Rear wheel rotation axis 100...Hybrid vehicle

Claims

1. It is a hybrid vehicle in which the rotational output of the engine is assisted by a motor generator. a transaxle including the motor generator and a transmission mechanism that transmits the rotation output by the engine to rear wheels; a propeller shaft that transmits the rotation output by the engine to the transaxle; a compressor that compresses a refrigerant gas for adjusting the temperature inside the vehicle cabin; In the transaxle, the transmission mechanism is connected to the engine through the propeller shaft, the motor generator is connected to the propeller shaft between the engine and the transmission mechanism in the vehicle longitudinal direction, The engine is disposed in front of the driver's seat and the passenger seat, the transaxle is disposed behind the driver's seat and the passenger seat, the propeller shaft passes between the driver's seat and the passenger seat and connects the engine and the transaxle, The compressor is adjacent to the transaxle. Hybrid vehicle.

2. a main battery that stores electricity and supplies the stored electricity to the motor generator; The main battery is disposed above the transaxle. The hybrid vehicle according to claim 1 .

3. The compressor is adjacent to the motor generator in the transaxle. The hybrid vehicle according to claim 1 .

4. The compressor is disposed laterally of the motor generator in the vehicle width direction. The hybrid vehicle according to claim 3 .

5. the motor generator is disposed forward of the rotation shaft of the rear wheel, The engine is disposed so that the center of gravity of the engine is located rearward of the rotation axis of the front wheels.

5. The hybrid vehicle according to claim 3 or 4.

Images