CN219988985U - Power system of vehicle and vehicle - Google Patents

Abstract

The utility model discloses a power system of a vehicle and the vehicle, wherein the power system comprises: an engine; a first motor; a second motor; a clutch, the clutch comprising: the input end is connected with the engine; a transmission, the transmission comprising: the input shaft is in transmission connection with the output end, the input shaft is in transmission connection with the first motor, two gear driving gears are arranged on the input shaft, two gear driven gears are arranged on the output shaft, and the two gear driving gears are meshed with the two gear driven gears in a one-to-one correspondence manner; the first differential mechanism is in transmission connection with the output shaft; and the second differential mechanism is in transmission connection with the second motor. Therefore, at least one of the engine, the first motor and the second motor is selected as a power source, and the state of the clutch is switched, so that the power system of the vehicle can be switched to a four-drive hybrid mode according to actual driving requirements.

Description

Power system of vehicle and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a power system of a vehicle and the vehicle.

Background

Along with the development of new energy automobiles, pure electric automobiles and hybrid automobiles are appeared in the current market, and the hybrid automobiles mainly take two-drive hybrid operation, namely an engine and two motors are respectively arranged at a front axle and jointly drive with a front differential mechanism in the front axle. Although the dynamic performance of the two-drive hybrid electric vehicle is strong, the two-drive hybrid electric vehicle can not be well adapted to some poor road conditions, and the control stability of the two-drive hybrid electric vehicle is poor, so that the driving experience of a user is greatly influenced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a power system for a vehicle, which has multiple driving modes, strong power and good driving experience.

The utility model further proposes a vehicle.

The power system of the vehicle according to the present utility model includes: an engine; a first motor; a second motor; a clutch, the clutch comprising: an input connected to the engine and selectively engageable with the output; a transmission, the transmission comprising: the input shaft is in transmission connection with the output end, the input shaft is in transmission connection with the first motor, the axis of the first motor is collinear with the axis of the engine, two gear driving gears are arranged on the input shaft, two gear driven gears are arranged on the output shaft, and the two gear driving gears are meshed with the two gear driven gears in a one-to-one correspondence manner; the first differential mechanism is in transmission connection with the output shaft; and the second differential mechanism is in transmission connection with the second motor.

Therefore, according to the power system of the vehicle, at least one of the engine, the first motor and the second motor can be selected as a power source according to actual needs, and the state of the clutch is switched, so that the power system of the vehicle can switch the four-drive hybrid mode according to actual driving requirements, and the driving performance of the vehicle can be improved.

In some examples of the utility model, one end of the input shaft is connected to the output end and the other end is connected to the first motor.

In some examples of the utility model, the first motor is provided with a motor shaft, one end of which is connected to the output end and the other end is connected to the input shaft.

In some examples of the present utility model, the two gear driving gears are sleeved on the input shaft, the two gear driven gears are fixed on the output shaft, and the transmission further includes: and a synchronizer disposed between the two gear driving gears to selectively engage the two gear driving gears with the input shaft.

In some examples of the present utility model, two of the gear drive gears are fixed to the input shaft, two of the gear driven gears are sleeved on the output shaft, and the transmission further includes: and a synchronizer disposed between the two gear driven gears to selectively engage the two gear driven gears with the output shaft.

In some examples of the utility model, the power system further comprises: and the power battery is electrically connected with the first motor and the second motor respectively.

In some examples of the utility model, the second electric machine is integrated on the second differential.

In some examples of the utility model, the first electric machine is one of a motor and a motor generator; and/or

The second motor is one of a motor and a motor generator.

In some examples of the utility model, the first differential is a front differential and the second differential is a rear differential.

The vehicle according to the present utility model includes: the power system of the vehicle.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic layout of a powertrain of a vehicle according to a first embodiment of the present utility model;

FIG. 2 is a schematic layout of a powertrain of a vehicle according to a second embodiment of the present utility model;

FIG. 3 is a schematic layout of a powertrain of a vehicle according to a third embodiment of the present utility model;

fig. 4 is a schematic layout of a power system of a vehicle according to a fourth embodiment of the present utility model.

Reference numerals:

1. a power system;

2. an engine; 3. a first motor; 4. a second motor; 5. a transmission; 51. an input shaft; 52. an output shaft; 53. a first gear driving gear; 54. a first-gear driven gear; 55. a second gear driving gear; 56. a second-gear driven gear; 57. a synchronizer; 6. a clutch; 7. a first differential; 8. a second differential.

Detailed Description

Embodiments of the present utility model will be described in detail below, by way of example with reference to the accompanying drawings.

A power system 1 of a vehicle according to an embodiment of the utility model is described below with reference to fig. 1-4.

As shown in fig. 1 to 4, a power system 1 of a vehicle according to an embodiment of the present utility model may include: the engine 2, the first electric machine 3, the second electric machine 4, the clutch 6, the transmission 5, the first differential 7, and the second differential 8, the clutch 6 includes: an input coupled to the engine 2 and an output selectively engageable with the input, e.g., power from the engine 2 cannot be transferred through the clutch 6 when the input is disengaged from the output, and power from the engine 2 can be transferred through the clutch 6 when the input is engaged with the output.

The transmission 5 includes: the input shaft 51 is in transmission connection with the output end, the input shaft 51 is in transmission connection with the first motor 3, the axis of the first motor 3 is collinear with the axis of the engine 2, two gear driving gears are arranged on the input shaft 51, two gear driven gears are arranged on the output shaft 52, the two gear driving gears are meshed with the two gear driven gears in one-to-one correspondence, the first differential 7 is in transmission connection with the output shaft 52, and the second differential 8 is in transmission connection with the second motor 4. That is, the input shaft 51 may receive the power of the engine 2 and the power of the first motor 3 at the same time, and then transmit the power to the first differential 7 through the output shaft 52 and drive the wheels on both sides of the first differential 7 to move, the second differential 8 may receive the power of the second motor 4 and drive the wheels on both sides of the second differential 8 to move, so that at least one of the engine 2, the first motor 3 and the second motor 4 may be selected as a power source according to actual needs, and is switched by the state of the clutch 6, so that the vehicle may realize the switching of modes such as an electric rear drive mode, an electric four drive mode, a series mode, an engine direct drive mode, a front axle parallel mode, a hybrid four drive mode, an ejection start mode, etc., and the vehicle may adapt to different road conditions through the switching mode, and may improve the driving performance of the vehicle. Moreover, by setting the axis of the first motor 3 to be collinear with the axis of the engine 2, the structural layout of the power system 1 can be simplified, the axial space of the power system 1 can be reasonably utilized, and no transmission mechanism is required to be provided between the first motor 3 and the input shaft 51, so that the structure of the power system 1 can be further simplified.

The power source corresponding to the first differential 7 is only the engine 2 and the first motor 3, the power source corresponding to the second differential 8 is only the second motor 4, so that a four-wheel drive mode of common driving of the engine 2 and the double motors can be realized, the power source of the front half part of the vehicle can be reduced or distributed to the rear axle, the power system 1 of the vehicle is simplified better, and the realization of the four-wheel drive mode of the power system 1 can be ensured.

Therefore, according to the power system 1 of the vehicle in the embodiment of the utility model, at least one of the engine 2, the first motor 3 and the second motor 4 can be selected as a power source according to actual needs, and the state of the clutch 6 is switched, so that the power system 1 of the vehicle can switch the four-drive hybrid mode according to actual driving requirements, and the driving performance of the vehicle can be improved.

According to an alternative embodiment of the utility model, as shown in fig. 3 and 4, the input shaft 51 is connected at one end to the output and at the other end to the first motor 3. That is, the first motor 3 is provided at the end of the input shaft 51 remote from the engine 2 and the clutch 6, so that the first motor 3 and the engine 2 can be located on both sides in the axial direction of the transmission 5, whereby the positional arrangement of the first motor 3 and the engine 2 can be facilitated, and the integration level of the power system 1 can be improved better.

According to another alternative embodiment of the utility model, as shown in fig. 1 and 2, the first motor 3 is provided with a motor shaft, one end of which is connected to the output end and the other end of which is connected to the input shaft 51. That is, the first electric machine 3 is disposed between the clutch 6 and the transmission 5, so that the engine 2, the clutch 6, and the first electric machine 3 are located on the same side of the transmission 5, whereby integration of the first electric machine 3 and the engine 2 can be facilitated, and compactness of the power system 1 can be improved.

According to an alternative embodiment of the utility model, as shown in fig. 1 and 3, the two-gear driving gear is sleeved on the input shaft 51, the two-gear driven gear is fixed on the output shaft 52, and the transmission 5 further comprises: a synchronizer 57, the synchronizer 57 being provided between the two gear drive gears, so that the two gear drive gears can be selectively engaged with the input shaft 51. The two gear driving gears are a first gear driving gear 53 and a second gear driving gear 55 respectively, the two gear driven gears are a first gear driven gear 54 and a second gear driven gear 56 respectively, the first gear driving gear 53 is meshed with the first gear driven gear 54, the second gear driving gear 55 is meshed with the second gear driven gear 56, a synchronizer 57 is arranged between the first gear driving gear 53 and the second gear driving gear 55, when the synchronizer 57 is engaged rightward, the synchronizer can be engaged with the first gear driving gear 53, and when the synchronizer 57 is engaged leftward, the synchronizer can be engaged with the second gear driving gear 55. The synchronizer 57 thus provided can reduce the number of synchronizers in the transmission 5, and can simplify the structure of the transmission 5.

According to another alternative embodiment of the present utility model, as shown in fig. 2 and 4, two gear driving gears are fixed on the input shaft 51, two gear driven gears are sleeved on the output shaft 52, and the transmission 5 further includes: a synchronizer 57, the synchronizer 57 being disposed between the two gear driven gears to selectively engage the two gear driven gears with the output shaft 52. The two gear driving gears are a first gear driving gear 53 and a second gear driving gear 55, the two gear driven gears are a first gear driven gear 54 and a second gear driven gear 56, the first gear driving gear 53 is meshed with the first gear driven gear 54, the second gear driving gear 55 is meshed with the second gear driven gear 56, a synchronizer 57 is arranged between the first gear driven gear 54 and the second gear driven gear 56, when the synchronizer 57 is engaged rightward, the synchronizer can be engaged with the first gear driven gear 54, and when the synchronizer 57 is engaged leftward, the synchronizer can be engaged with the second gear driven gear 56. The synchronizer 57 thus provided can reduce the number of synchronizers 57 in the transmission 5, and can simplify the structure of the transmission 5.

According to some embodiments of the present utility model, the power system 1 of the vehicle may further include: the power battery is electrically connected with the first motor 3 and the second motor 4 respectively. That is, the power battery is located between the first motor 3 and the second motor 4, so that the power battery can supply electric power to the first motor 3 and the second motor 4, so that the power battery can supply power to the vehicle or recover electric power. For example, when the vehicle is braked, the second motor 4 recovers electric energy, and the recovered electric energy is supplied to the power battery, thereby realizing a regenerative braking mode.

In particular, the second electric machine 4 is integrated on the second differential 8. The motor shaft of the second motor 4 is provided with a transmission gear, the transmission gear is meshed with the gear ring of the second differential mechanism 8, so that power transmission between the second motor 4 and the second differential mechanism 8 can be ensured, moreover, the axis of the second motor 4 is collinear with the axis of the second differential mechanism 8, the second motor 4 can reasonably utilize the space on one axial side of the second differential mechanism 8, the second motor 4 can be reasonably arranged, the second motor 4 and the second differential mechanism 8 can share a shell, namely, one of the second motor 4 and the second differential mechanism 8 is improved to cover the other one, so that the design of the shell can be simplified, and the integration level of the second motor 4 and the second differential mechanism 8 can be further improved.

Alternatively, the first electric machine 3 is one of a motor and a motor generator, and the second electric machine 4 is one of a motor and a motor generator. For example, the first motor 3 is a motor, the second motor 4 is a motor generator, and the first motor 3 is located at the front end of the second motor 4, so that it is possible to switch different modes of the vehicle and to improve drivability of the vehicle. As another example, the first motor 3 and the second motor 4 may each be a motor generator.

In addition, as shown in fig. 1-4, the first differential 7 is a front differential, and the second differential 8 is a rear differential, so that when the vehicle is driven in two, the hybrid two-drive of the front axle can be selected, and the pure direct-drive of the rear axle can be selected, so that different two-drive modes can be realized, the driving modes of the vehicle can be better enriched, and the overall change of the vehicle can be reduced by arranging the engine 2 and the first motor 3 on the front side of the vehicle.

The following describes in detail the respective modes of the power system 1 of the vehicle according to the embodiment of the present utility model, taking the power system 1 shown in fig. 1 as an example.

Electric two drives: the engine 2 and the first motor 3 stop working, the second motor 4 starts working, the input end and the output end of the clutch 6 are disconnected, and the power of the second motor 4 can be transmitted to the wheels on two sides through the second differential mechanism 8, so that an electric two-drive mode is realized, and the electric two-drive mode can be suitable for the condition that the electric quantity of a power battery is high, and the economy of the mode is good.

Electric four-wheel drive: the engine 2 stops working, the first motor 3 and the second motor 4 start working, the input end of the clutch 6 is connected with the output end, the synchronizer 57 is connected, the power of the first motor 3 is sequentially transmitted to wheels on two sides through the input shaft 51, the first-gear driving gear 53, the first-gear driven gear 54, the output shaft 52 and the output gear and the first differential 7, or the power of the first motor 3 is sequentially transmitted to the wheels on two sides through the input shaft 51, the second-gear driving gear 55, the second-gear driven gear 56, the output shaft 52 and the first differential 7, and the power of the second motor 4 is transmitted to the wheels on two sides through the second differential 8, so that an electric four-wheel driving mode is realized, and the electric four-wheel driving mode can be suitable for being used for better economy and more complex road conditions when the power battery electric quantity is higher.

And (3) connecting in series: the engine 2, the first motor 3 and the second motor 4 are started to work, the input end of the clutch 6 is connected with the output end, the synchronizer 57 is disconnected, the power of the engine 2 is transmitted to the first motor 3, the first motor 3 generates electricity and transmits electric energy to the power battery or the second motor 4, the second motor 4 can be transmitted to wheels on two sides through the second differential mechanism 8 under the power supply of the power battery or the power supply of the first motor 3, so that a series mode is realized, the series mode can be suitable for the condition that the electric quantity of the power battery is low, the front axle can be used for generating electricity, the rear axle is driven, and the economy of the mode is good and the oil consumption is lowest.

And (3) direct driving of an engine: the second motor 4 stops working, the engine 2 starts working, the input end of the clutch 6 is connected with the output end, the synchronizer 57 is connected, the power of the engine 2 is transmitted to the wheels on two sides through the input shaft 51, the first-gear driving gear 53, the first-gear driven gear 54, the output shaft 52 and the first differential 7, or the power of the engine 2 is transmitted to the wheels on two sides through the input shaft 51, the second-gear driving gear 55, the second-gear driven gear 56, the output shaft 52 and the first differential 7, so that an engine direct drive mode is realized, and the engine direct drive mode is suitable for the condition of low electric quantity. The first motor 3 may also be turned on to operate as a generator, and at this time, a part of power of the engine 2 may be transferred to the first motor 3, and electric energy generated by the first motor 3 may be transferred to a power battery.

Front axle mixing: the second motor 4 stops working, the first motor 3 and the engine 2 start working, the input end of the clutch 6 is connected with the output end, the synchronizer 57 is connected, the power of the first motor 3 and the power of the engine 2 are coupled at the input shaft 51, the coupled power is transmitted to wheels on two sides through the first gear driving gear 53, the first gear driven gear 54, the output shaft 52 and the first differential 7, or the coupled power is transmitted to the wheels on two sides through the second gear driving gear 55, the second gear driven gear 56, the output shaft 52 and the first differential 7, so that a front axle mixed mode is realized, and the mode can realize high-speed cruising and high-speed overtaking.

Mixing four drives: the engine 2, the first motor 3 and the second motor 4 are started to work, the input end of the clutch 6 is connected with the output end, the synchronizer 57 is connected, the power of the first motor 3 and the power of the engine 2 are coupled at the input shaft 51, the coupled power is transmitted to wheels on two sides through the first gear driving gear 53, the first gear driven gear 54, the output shaft 52 and the first differential 7, or the coupled power is transmitted to the wheels on two sides through the second gear driving gear 55, the second gear driven gear 56, the output shaft 52 and the first differential 7, and the power of the second motor 4 is transmitted to the wheels on two sides through the second differential 8, so that a hybrid four-wheel drive mode is realized, and the mode can realize high-speed cruising and high-speed overtaking. The hybrid four-wheel drive mode is also suitable for ejection starting.

Feedback braking: the engine 2 and the first motor 3 stop working, the second motor 4 starts working, the input end and the output end of the clutch 6 are disconnected, the synchronizer 57 is disconnected, braking force at wheels is transmitted to the second motor 4 through the second differential 8, and the second motor 4 generates electricity and transmits the electric energy to the power battery.

According to an embodiment of the present utility model, a vehicle includes: in the power system 1 of the vehicle according to the above embodiment, the double clutch 6 is connected to the engine 2 and the transmission 5, respectively, so that the four-wheel drive hybrid mode of the vehicle can be realized, and the drivability of the vehicle can be improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features. In the description of the present utility model, "plurality" means two or more. In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween. In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A power system of a vehicle, characterized by comprising:

an engine (2);

a first motor (3);

a second motor (4);

a clutch (6), the clutch (6) comprising: an input connected to the engine (2) and selectively engageable with the output;

a transmission (5), the transmission (5) comprising: the gear transmission device comprises an input shaft (51) and an output shaft (52), wherein the input shaft (51) is in transmission connection with the output end, the input shaft (51) is in transmission connection with the first motor (3), the axis of the first motor (3) is collinear with the axis of the engine (2), two gear driving gears are arranged on the input shaft (51), two gear driven gears are arranged on the output shaft (52), and the two gear driving gears are meshed with the two gear driven gears in a one-to-one correspondence manner;

a first differential (7), the first differential (7) being in driving connection with the output shaft (52); and

and the second differential mechanism (8), the second differential mechanism (8) is connected with the second motor (4) in a transmission way.

2. A power system of a vehicle according to claim 1, characterized in that one end of the input shaft (51) is connected with the output end and the other end is connected with the first electric machine (3).

3. A power system of a vehicle according to claim 1, characterized in that the first electric machine (3) is provided with a motor shaft, one end of which is connected to the output end and the other end is connected to the input shaft (51).

4. A power system of a vehicle according to claim 1, characterized in that two of said gear driving gears are hollow on said input shaft (51), two of said gear driven gears are fixed on said output shaft (52), said transmission (5) further comprising: a synchronizer (57), the synchronizer (57) being disposed between the two gear drive gears to selectively engage the two gear drive gears with the input shaft (51).

5. A power system of a vehicle according to claim 1, characterized in that two of said gear drive gears are fixed to said input shaft (51) and two of said gear driven gears are hollow around said output shaft (52), said transmission (5) further comprising: a synchronizer (57) provided between the two gear driven gears to selectively engage the two gear driven gears with the output shaft (52).

6. The power system of a vehicle according to claim 1, characterized by further comprising: and the power battery is electrically connected with the first motor (3) and the second motor (4) respectively.

7. A power system of a vehicle according to claim 1, characterized in that the second electric machine (4) is integrated on the second differential (8) and that the axis of the second electric machine (4) is collinear with the axis of the second differential (8).

8. The power system of a vehicle according to claim 1, characterized in that the first electric machine (3) is one of an electric motor and a motor generator; and/or

The second motor (4) is one of a motor and a motor generator.

9. A power system of a vehicle according to claim 1, characterized in that the first differential (7) is a front differential and the second differential (8) is a rear differential.

10. A vehicle, characterized by comprising: a power system of a vehicle as claimed in any one of claims 1 to 9.