Hybrid power system based on longitudinal engine and hybrid power vehicle

Abstract

The utility model relates to the technical field of hybrid power vehicles, in particular to a hybrid power system based on a longitudinal engine and a hybrid power vehicle, and the hybrid power system is arranged on a chassis and comprises the engine, a first motor, a second motor, a third motor and a fourth motor, the generator is connected to the engine through a first transmission mechanism and generates electricity by means of first power of the engine; the driving motor is used for outputting second power, and the driving motor is electrically connected to the generator through a storage battery; the drive axle is connected to the drive motor through a second transmission mechanism and outputs second power from the drive motor; the first transmission mechanism and the second transmission mechanism are arranged in a staggered mode in the left-right direction. According to the hybrid power system, the first transmission mechanism and the second transmission mechanism are arranged in the left-right direction in a staggered mode, and the generator and the driving motor are arranged on the two sides of the engine respectively, so that the overall layout of the hybrid power system is more balanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to hybrid power vehicle technical field, concretely relates to hybrid power system and hybrid power vehicle based on longitudinal engine. BACKGROUND

[0002] With the development of technology, the power transmission mode of hybrid power vehicle is more and more, including series, parallel and series-parallel, according to the type and use of vehicle, adopt different power system. In the prior art, for matching hybrid power system of longitudinal engine, there is no good solution, therefore, it is urgent to need a reliable power system layout to match longitudinal engine. SUMMARY

[0003] The utility model discloses a kind of hybrid power system and hybrid power vehicle based on longitudinal engine, to match longitudinal engine.

[0004] To achieve the above object, the technical scheme of the utility model includes:

[0005] Hybrid power system based on longitudinal engine, characterized in that, the hybrid power system is arranged on chassis, comprising:

[0006] Engine, for outputting first power, the engine is longitudinally installed, defines the output shaft of the engine as center line, in the plane where the chassis is, define the direction perpendicular to the center line as left-right direction;

[0007] Generator, the generator is connected to the engine by first transmission mechanism, and generates electricity by the first power of the engine;

[0008] Driving motor, for outputting second power, the driving motor is electrically connected to the generator by a battery;

[0009] Drive axle, the drive axle is connected to the driving motor by second transmission mechanism, and the second power from the driving motor is output;

[0010] The first transmission mechanism and the second transmission mechanism are disposed in left-right direction.

[0011] In an embodiment, along the center line, define the end where the output shaft of the engine is as rear, the driving motor is arranged at the rear side of the engine, the drive axle is arranged at the front side of the driving motor, so that the driving motor passes through the second transmission mechanism and forwards the second power to the drive axle.

[0012] In one embodiment, the engine and the drive axle are connected through a third transmission mechanism for outputting a third power to the drive axle, so that the engine and the drive motor output power to the drive axle separately or simultaneously.

[0013] In one embodiment, the drive motor is connected to a second rotating shaft and uses the second rotating shaft as its output shaft, the second rotating shaft is connected to a second gear set and a fourth rotating shaft, and the second rotating shaft is connected to the fourth rotating shaft through the second gear set, the fourth rotating shaft is connected to the drive axle as the input shaft of the drive axle, and the second rotating shaft, the fourth rotating shaft and the second gear set form the second transmission mechanism; the engine is connected to a first rotating shaft and uses the first rotating shaft as its output shaft, the first rotating shaft is connected to a third rotating shaft through a third gear set, at least one gear shifting set is arranged between the third rotating shaft and the fourth rotating shaft, and the first rotating shaft, the third rotating shaft, the fourth rotating shaft, the third gear set and the gear shifting set form the third transmission mechanism; a clutch is arranged between the gear shifting set and the fourth rotating shaft for forming a clutch transmission between the third rotating shaft and the fourth rotating shaft.

[0014] In one embodiment, the gear shifting set is one or two sets, and the clutch is a first clutch arranged on the fourth rotating shaft.

[0015] In one embodiment, the gear shifting set is three or four sets, and the clutch has two clutches, i.e., a first clutch arranged on the fourth rotating shaft and a second clutch arranged on the third rotating shaft.

[0016] In one embodiment, the generator and the drive motor are located on the left and right sides of the engine.

[0017] In one embodiment, the engine is connected to a first rotating shaft and uses the first rotating shaft as its output shaft, the first rotating shaft is connected to a generator input shaft through a first gear set, and the first rotating shaft, the first gear set and the generator input shaft form the first transmission mechanism.

[0018] The technical scheme of the utility model further includes:

[0019] A hybrid vehicle includes the hybrid power system.

[0020] The utility model has the advantages of:

[0021] 1. This utility model achieves a more balanced overall layout of the hybrid power system by offsetting the first and second transmission mechanisms in the left-right direction and placing the generator and drive motor on opposite sides of the engine. Furthermore, the longitudinally mounted engine can be positioned in the center of the vehicle chassis, and the space on either side can be used to install the steering wheel mechanism, making the power system suitable for various vehicle models, including left-hand drive and right-hand drive vehicles.

[0022] 2. The engine transmits a third power to the drive axle through a third transmission mechanism. In conjunction with the clutch, the engine and the drive motor can output power to the drive axle simultaneously or individually to drive the vehicle. This increases the transmission options of the power system and adapts to the different power requirements of various vehicle models. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a range-extended hybrid power system according to an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of a single-speed hybrid power system according to an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of a two-speed hybrid power system according to an embodiment of this utility model.

[0026] Figure 4 This is a schematic diagram of a three-speed hybrid power system according to an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of a four-speed hybrid power system according to an embodiment of the present invention. Detailed Implementation

[0028] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] See Figures 1 to 3 As shown, this utility model discloses a hybrid power system based on a longitudinally mounted engine and a hybrid vehicle having the hybrid power system. The hybrid power system is mounted on a chassis and includes: an engine E, a generator G, a drive motor E, and a drive axle A. The engine E is used to output the first power. The engine E is longitudinally mounted. The output shaft of the engine E is defined as the centerline. On the plane where the chassis is located, the direction perpendicular to the centerline is defined as the left-right direction, the extension direction of the centerline is defined as the front-rear direction, and the end where the output shaft of the engine E is located is the rear.

[0030] The generator G is connected to the engine E through a first transmission mechanism D1 and generates electricity by means of the first power of the engine E. The driving motor E is used to output the second power, and the driving motor M is electrically connected to the generator G through a storage battery and is driven to work by the electric energy converted by the generator G, so as to output the second power to the outside. The driving bridge A is connected to the driving motor M through a second transmission mechanism D2 and outputs the second power from the driving motor M. The first transmission mechanism D1 and the second transmission mechanism D2 are distributed on the two opposite sides of the center line.

[0031] The first transmission mechanism D1 and the second transmission mechanism D2 are arranged in a staggered manner in the left-right direction, and the generator G and the driving motor M are arranged on the two sides of the engine E, so that the overall layout of the hybrid power system is more balanced. In addition, the longitudinally arranged engine E can be arranged at the center of the vehicle chassis, and the spaces on the left and right sides can be used to install the steering wheel mechanism, so that the power system can be applied to various vehicle models such as left-hand drive vehicles or right-hand drive vehicles.

[0032] The generator G and the driving motor M are arranged separately in the utility model, the working principles of the two are opposite, and in the prior art, the same motor is used, and the working state of the motor is changed to be used as a generator or a driving motor. The utility model is provided with two motors, which are used as the generator G and the driving motor M respectively, and the processes of power generation and power output do not affect each other, can be carried out at the same time, and the working efficiency and the power generation capacity are improved. Secondly, the utility model adopts two motors, which are located on the left and right sides of the engine E, so that the layout of the hybrid power system is more balanced, and the driving stability of the vehicle is improved.

[0033] The engine E is connected to the first rotating shaft 1 and takes the first rotating shaft 1 as its output shaft, the first rotating shaft 1 is connected to the generator input shaft 5 through the first gear set 10, and the first rotating shaft 1, the first gear set 10 and the generator input shaft 5 form the first transmission mechanism D1. The first gear set 10 of the embodiment is formed by meshing three gears, so that the rotating directions of the first rotating shaft 1 and the generator input shaft 5 are the same. The driving motor M is connected to the second rotating shaft 2 and takes the second rotating shaft 2 as its output shaft, the second rotating shaft 2 is connected to the second gear set 20 and the fourth rotating shaft 4, and is transmitted to the fourth rotating shaft 4 through the second gear set 20, the fourth rotating shaft 4 is connected to the driving bridge A as the input shaft of the driving bridge A, and the second rotating shaft 2, the fourth rotating shaft 4 and the second gear set 20 form the second transmission mechanism. At this time, the engine E only outputs power to the generator G to make the generator generate electricity, and the driving bridge A is driven by the driving motor M, and the hybrid power system is a range extender.

[0034] In order to meet different needs of the hybrid vehicle, the utility model discloses drive motor M is arranged at the back of engine E, drive axle A is arranged at the front of drive motor M, so that drive motor M passes through second transmission mechanism D2 and forms the transmission connection between engine E and drive axle A.

[0035] The first rotating shaft 1 is connected with the third rotating shaft 3 through the third gear set 30, and at least one gear shifting gear set 40 is arranged between the third rotating shaft 3 and the fourth rotating shaft 4, and the first rotating shaft 1, the third rotating shaft 3, the fourth rotating shaft 4, the third gear set 30 and the gear shifting gear set 40 form the third transmission mechanism D3. In order to control the power of the engine E to be selectively transmitted to the drive axle A, a clutch C is arranged between the gear shifting gear set 40 and the fourth rotating shaft 4 for forming a clutch transmission between the third rotating shaft 3 and the fourth rotating shaft 4. The gear shifting gear set 40 is used to form a multi-gear transmission between the third rotating shaft 3 and the fourth rotating shaft 4, according to different gear shifting gear sets 40 and clutches C forming transmission, the transmission ratio between the third rotating shaft 3 and the fourth rotating shaft 4 is changed, and the clutch C can also be switched to not be in transmission with any gear shifting gear set 40 to cut off the transmission between the third rotating shaft 3 and the fourth rotating shaft 4, so as to cut off the power output path of the engine E to the drive axle A. The utility model sets up four-gear transmission between the third rotating shaft 3 and the fourth rotating shaft 4, that is, multi-gear transmission is set up between the engine E and the drive axle A to adapt to different types of power demand, and the multi-gear transmission between the engine E and the drive axle A will be described in detail below:

[0036] Referring to Figure 2 As shown in the figure, the engine E and the drive axle A are single-gear transmission, the gear shifting gear set 40 is a group, and the clutch C is a first clutch C1 arranged on the fourth rotating shaft 4, and the first clutch C1 is selectively in transmission with the gear shifting gear set 40 to form the transmission connection or disconnection of the engine E and the drive axle A.

[0037] When the pure electricity, the first clutch C1 is in the neutral position, the third rotating shaft 3 and the fourth rotating shaft 4 do not transmit power, and the second power output by the drive motor M passes through the second rotating shaft 2, the second gear set 20, the fourth rotating shaft 4 and the drive axle A in turn, so as to drive the vehicle to run.

[0038] When the engine is directly driven, the first clutch C1 is in transmission with the gear shifting gear set 40, the third rotating shaft 3 and the fourth rotating shaft 4 are in transmission connection, the third power output by the engine E passes through the first rotating shaft 1, the third gear set 30, the third rotating shaft 3, the gear shifting gear set 40, the first clutch C1, the fourth rotating shaft 4 and the drive axle A in turn, so as to drive the vehicle to run.

[0039] In hybrid mode, the first clutch C1 is driven by the shift gear set 40, and the third shaft 3 and the fourth shaft 4 are connected by a drive shaft. The third power output from the engine E passes sequentially through the first shaft 1, the third gear set 30, the third shaft 3, the shift gear set 40, the first clutch C1, the fourth shaft 4, and the drive axle A. The second power output from the drive motor M passes sequentially through the second shaft 2, the second gear set 20, the fourth shaft 4, and the drive axle A. The second power output from the drive motor M and the third power output from the engine E are coupled at the fourth shaft 4, thereby driving the vehicle.

[0040] Under all the above transmission methods, engine E can output primary power to generator G to drive it to generate electricity.

[0041] See Figure 3 As shown, with Figure 2 The difference between the embodiments shown is that the engine E and the drive axle A in this embodiment are connected by two gears, and the shift gear set 40 consists of two sets, namely the first shift gear set 401 and the second shift gear set 402.

[0042] In pure electric mode, the first clutch C1 is in the neutral position, the third shaft 3 and the fourth shaft 4 do not transmit power, and the second power output by the drive motor M passes through the second shaft 2, the second gear set 20, the fourth shaft 4 and the drive axle A in sequence to drive the vehicle.

[0043] When the engine is in direct drive mode, the first clutch C1 is driven by either the first shift gear set 401 or the second shift gear set 402. The third shaft 3 and the fourth shaft 4 form a two-speed transmission connection. The third power output from the engine E passes sequentially through the first shaft 1, the third gear set 30, the third shaft 3, the shift gear set 40 (either the first shift gear set 401 or the second shift gear set 402), the first clutch C1, the fourth shaft 4, and the drive axle A, thereby driving the vehicle.

[0044] In hybrid mode, the first clutch C1 drives the first shift gear set 401 or the second shift gear set 402. The third shaft 3 and the fourth shaft 4 form a two-speed transmission connection. The third power output by the engine E passes sequentially through the first shaft 1, the third gear set 30, the third shaft 3, the shift gear set 40 (the first shift gear set 401 or the second shift gear set 402), the first clutch C1, the fourth shaft 4, and the drive axle A. The second power output by the drive motor M passes sequentially through the second shaft 2, the second gear set 20, the fourth shaft 4, and the drive axle A. The second power output by the drive motor M and the third power output by the engine E are coupled at the fourth shaft 4, thereby driving the vehicle.

[0045] Under all the above transmission methods, engine E can output primary power to generator G to drive it to generate electricity.

[0046] See Figure 4 As shown, with Figure 3 The difference between the embodiments shown is that the engine E and the drive axle A in this embodiment are connected by a three-speed transmission. The shift gear set 40 consists of three sets: the first shift gear set 401, the second shift gear set 402, and the third shift gear set 403. There are two clutches C, including a first clutch C1 located on the fourth rotating shaft 4 and a second clutch C2 located on the third rotating shaft 3. One of the two clutches can be used for transmission or neither of them can be used for transmission.

[0047] In pure electric mode, both the first clutch C1 and the second clutch C2 are in the neutral position. The third shaft 3 and the fourth shaft 4 do not transmit power. The second power output by the drive motor M passes through the second shaft 2, the second gear set 20, the fourth shaft 4, and the drive axle A in sequence, thereby driving the vehicle.

[0048] When the engine is in direct drive mode, one of the first clutch C1 and the second clutch C2 participates in the transmission. Specifically, the first clutch C1 is driven by the first shift gear set 401 or the second shift gear set 402, or the second clutch C2 is driven by the third shift gear set 403. The third shaft 3 and the fourth shaft 4 form a three-speed transmission connection. The third power output by the engine E passes sequentially through the first shaft 1, the third gear set 30, the third shaft 3, the shift gear set 40 (the first shift gear set 401, the second shift gear set 402, or the third shift gear set 403), the first clutch C1 or the second clutch C2, the fourth shaft 4, and the drive axle A, thereby driving the vehicle.

[0049] In hybrid mode, one of the first clutch C1 and the second clutch C2 participates in the transmission. Specifically, the first clutch C1 is driven by the first shift gear set 401 or the second shift gear set 402, or the second clutch C2 is driven by the third shift gear set 403. The third shaft 3 and the fourth shaft 4 form a three-speed transmission connection. The third power output by the engine E passes sequentially through the first shaft 1, the third gear set 30, the third shaft 3, the shift gear set 40 (either the first shift gear set 401, the second shift gear set 402, or the third shift gear set 403), the first clutch C1 or the second clutch C2, the fourth shaft 4, and the drive axle A. The second power output by the drive motor M passes sequentially through the second shaft 2, the second gear set 20, the fourth shaft 4, and the drive axle A. The second power output by the drive motor M and the third power output by the engine E are coupled at the fourth shaft 4, thereby driving the vehicle.

[0050] Under all the above transmission methods, engine E can output primary power to generator G to drive it to generate electricity.

[0051] See Figure 5 As shown, withFigure 4 The difference between the embodiments shown is that the engine E and the drive axle A are connected by four gears in the embodiment, the gear shifting gear set 40 is four sets, and the second gear set 20 is provided with a clutch mechanism as a gear shifting gear set 40, i.e., the fourth gear shifting gear set 404.

[0052] When the vehicle is driven by electricity, the first clutch C1 and the second clutch C2 are both in the neutral position, the third rotating shaft 3 and the fourth rotating shaft 4 do not transmit power, the second power output by the drive motor M passes through the second rotating shaft 2, the second gear set 20, the fourth rotating shaft 4, and the drive axle A in sequence, thereby driving the vehicle to travel.

[0053] When the engine directly drives the vehicle, one of the first clutch C1 and the second clutch C2 is involved in power transmission, specifically, the first clutch C1 is connected to the first gear shifting gear set 401 or the second gear shifting gear set 402, or the second clutch C2 is connected to the third gear shifting gear set 403, the third rotating shaft 3 and the fourth rotating shaft 4 are connected by three gears, the third power output by the engine E passes through the first rotating shaft 1, the third gear set 30, the third rotating shaft 3, the gear shifting gear set 40 (the first gear shifting gear set 401 or the second gear shifting gear set 402 or the third gear shifting gear set 403 or the fourth gear shifting gear set 404), the first clutch C1 or the second clutch C2, the fourth rotating shaft 4, and the drive axle A in sequence, thereby driving the vehicle to travel.

[0054] When the vehicle is driven by hybrid power, one of the first clutch C1 and the second clutch C2 is involved in power transmission, specifically, the first clutch C1 is connected to the first gear shifting gear set 401 or the second gear shifting gear set 402, or the second clutch C2 is connected to the third gear shifting gear set 403 or the fourth gear shifting gear set 404, the third rotating shaft 3 and the fourth rotating shaft 4 are connected by four gears, the third power output by the engine E passes through the first rotating shaft 1, the third gear set 30, the third rotating shaft 3, the gear shifting gear set 40 (the first gear shifting gear set 401 or the second gear shifting gear set 402 or the third gear shifting gear set 403 or the fourth gear shifting gear set 404), the first clutch C1 or the second clutch C2, the fourth rotating shaft 4, and the drive axle A in sequence; the second power output by the drive motor M passes through the second rotating shaft 2, the second gear set 20, the fourth rotating shaft 4, and the drive axle A in sequence, the second power output by the drive motor M and the third power output by the engine E are coupled at the fourth rotating shaft 4, specifically, when the fourth gear shifting gear set 404 (i.e., the second gear set 20) is connected to the second clutch C2, the second power output by the drive motor M and the third power output by the engine E are coupled at the second gear set 20, thereby driving the vehicle to travel.

[0055] In the above various transmission modes, the engine E can output the first power to the generator G to drive the generator G to generate electricity.

[0056] The drive axle A in the above embodiments is a front axle, and in other embodiments the drive axle A can also be a rear axle.

[0057] Although the utility model is specifically shown and introduced in combination with the preferred embodiments, it should be understood by those skilled in the art that the remaining unexplained parts are prior art, and various changes made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims all fall within the protection scope of the utility model.

Claims

1. A hybrid system based on a longitudinally mounted engine, characterized in that, The hybrid system is arranged on a chassis, comprising: an engine for outputting a first power, the engine is installed longitudinally, defining an output shaft of the engine as a center line, in a plane where the chassis is located, defining a direction perpendicular to the center line as left-right direction; a generator connected to the engine through a first transmission mechanism and generating electricity by means of the first power of the engine; a drive motor for outputting a second power, the drive motor is electrically connected to the generator through a battery; a drive axle connected to the drive motor through a second transmission mechanism and outputting the second power from the drive motor; the first transmission mechanism and the second transmission mechanism are arranged staggered in the left-right direction.

2. A hybrid system based on a longitudinally mounted engine according to claim 1, characterized in that, Along the center line, defining an end where the output shaft of the engine is located as rear, the drive motor is arranged at the rear side of the engine, and the drive axle is arranged at the front side of the drive motor, so that the drive motor transmits the second power forward to the drive axle through the second transmission mechanism.

3. The hybrid system based on a longitudinally mounted engine according to claim 1, characterized in that, the engine and the drive axle are connected through a third transmission mechanism for outputting a third power to the drive axle, so that the engine and the drive motor output power to the drive axle separately or simultaneously.

4. A hybrid system based on a longitudinally mounted engine according to claim 3, characterized in that, the drive motor is connected to a second rotating shaft and takes the second rotating shaft as its output shaft, the second rotating shaft is connected to a second gear set and a fourth rotating shaft, and is connected to the fourth rotating shaft through the second gear set, the fourth rotating shaft is connected to the drive axle as the input shaft of the drive axle, the second rotating shaft and the fourth rotating shaft and the second gear set form the second transmission mechanism; the engine is connected to a first rotating shaft and takes the first rotating shaft as its output shaft, the first rotating shaft is connected to a third rotating shaft through a third gear set, at least one gear shifting set is arranged between the third rotating shaft and the fourth rotating shaft, the first rotating shaft, the third rotating shaft, the fourth rotating shaft, the third gear set and the gear shifting set form the third transmission mechanism; a clutch is arranged between the gear shifting set and the fourth rotating shaft for making the third rotating shaft and the fourth rotating shaft form a clutch transmission.

5. A hybrid system based on a longitudinal engine according to claim 4, characterized in that, the gear shifting set is one or two sets, and the clutch is a first clutch arranged on the fourth rotating shaft.

6. A hybrid system based on a longitudinally mounted engine according to claim 4, characterized in that, the gear shifting set is three or four sets, and the clutch has two, which are a first clutch arranged on the fourth rotating shaft and a second clutch arranged on the third rotating shaft.

7. The longitudinal engine-based hybrid system of claim 1, wherein, the generator and the drive motor are located on the left and right sides of the engine.

8. The longitudinal engine-based hybrid system of claim 1, wherein, the engine is connected to a first rotating shaft and takes the first rotating shaft as its output shaft, the first rotating shaft is connected to a generator input shaft through a first gear set, the first rotating shaft, the first gear set and the generator input shaft form the first transmission mechanism.

9. A hybrid vehicle characterized by comprising: the hybrid system according to any one of claims 1-8.

Images