Power system and vehicle

Abstract

The utility model relates to a power system and a vehicle. The power system comprises an engine, a first motor and a transmission structure, one end of the first motor is connected with the engine, the first motor is at least used for generating electricity, the first end of the transmission structure is connected with the other end of the first motor, and the second end of the transmission structure is used for outputting power. According to the power system, the first motor and the engine are directly connected, parts between the first motor and the engine are reduced, the engine can effectively drive the first motor to generate power, the power generation efficiency of the first motor is improved, meanwhile, the first motor is arranged between the engine and the transmission structure, and the power generation efficiency of the first motor is improved. The first motor is connected with the first end of the transmission structure, and the first motor can output driving force to the transmission structure, so that the first motor has a driving function, and further the first motor has a power generation function and a driving function.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle power, and in particular to a power system and a vehicle. BACKGROUND

[0002] The engine of a hybrid vehicle is generally used in cooperation with a generator, especially in series and series-parallel hybrid systems. The engine not only provides power for the electric motor, but also drives the generator to convert mechanical energy into electrical energy, which is stored in the battery for use by the electric motor when needed.

[0003] In the related art, the generator is generally only used for power generation, and the function is relatively single. CONTENT OF THE UTILITY MODEL

[0004] The embodiments of the present application provide a power system, and a first motor has a power generation function and a driving function to at least partially solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a power system is provided, comprising:

[0006] An engine;

[0007] A first motor, one end of the first motor is connected with the engine, and the first motor is at least used for power generation;

[0008] A transmission structure, a first end of the transmission structure is connected with the other end of the first motor, and a second end of the transmission structure is used for outputting power.

[0009] Optionally, the engine and the first motor are coaxially arranged.

[0010] Optionally, the power system further comprises a first power transmission switch, the first power transmission switch is connected with the engine and the first motor, and the first power transmission switch is switchable between a closed state and an open state.

[0011] Optionally, the power system further comprises a second power transmission switch, the second power transmission switch is connected with the first motor and the first end of the transmission structure, and the second power transmission switch is switchable between a closed state and an open state.

[0012] Optionally, the transmission structure comprises a third power transmission switch, the third power transmission switch is connected with the first end of the transmission structure and the second end of the transmission structure, and the third power transmission switch is switchable between a closed state and an open state.

[0013] Optionally, the transmission structure further comprises a second gear set, a first end of the second gear set is formed as the first end of the transmission structure, and a second end of the second gear set is formed as the second end of the transmission structure.

[0014] Optionally, the power system further comprises a second motor for driving, the second motor is connected with the first end of the transmission structure.

[0015] Optionally, the second motor is non-coaxial with the first motor.

[0016] Optionally, the first end of the transmission structure comprises a first sub-end and a second sub-end, the first motor is connected with the first sub-end of the transmission structure, and the second motor is connected with the second sub-end of the transmission structure.

[0017] Optionally, the transmission structure comprises a first gear set, a first end of the first gear set is formed as the first sub-end of the transmission structure, and a second end of the first gear set is formed as the second sub-end of the transmission structure.

[0018] Optionally, the power system further comprises a differential, the differential is connected with the second end of the transmission structure.

[0019] Optionally, an output shaft of the second motor is sleeved on an output shaft of the differential; or,

[0020] The output shaft of the differential is sleeved on the output shaft of the second motor.

[0021] Optionally, the output shaft of the second motor is non-coaxial with the output shaft of the differential.

[0022] Optionally, the power system further comprises a housing, the second motor and the engine are both mounted in the housing.

[0023] Optionally, the power system further comprises a first axle, the first axle is connected with the second end of the transmission structure.

[0024] Optionally, the power system further comprises a first wheel, the first wheel is connected with the first axle, and the first axle is used to drive the first wheel to rotate.

[0025] Optionally, the first axle and the output shaft of the differential are coaxially arranged.

[0026] Optionally, the power system further comprises a driving motor and a second axle, the driving motor is connected with the second axle, and the driving motor is used to drive the second axle to rotate.

[0027] Optionally, the power system further comprises a second wheel connected with the second wheel shaft, and the second wheel shaft is configured to drive the second wheel to rotate.

[0028] According to a second aspect of the present application, a vehicle is provided, comprising the power system as described above.

[0029] In the power system of the embodiments of the present application, the first motor is arranged between the engine and the transmission structure, so that the first motor is directly connected with the engine, the components between the first motor and the engine are reduced, the engine can effectively drive the first motor to generate power, and the power generation efficiency of the first motor is improved.

[0030] Meanwhile, the first motor is arranged between the engine and the transmission structure, so that the first motor is connected with the first end of the transmission structure, the first motor can output driving force to the transmission structure, the first motor has the driving function, and further has the power generation function and the driving function.

[0031] The engine and the first motor are located on the same side of the transmission structure, and the structural compactness of the power system is improved.

[0032] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0034] In order to more completely understand the present application and its advantages, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0035] Figure 1 is a structural schematic diagram of the power system provided in the exemplary embodiment of the present disclosure;

[0036] Figure 2 is a structural schematic diagram of the power system provided in the exemplary embodiment of the present disclosure, wherein the output shaft of the second motor is sleeved on the output shaft of the differential;

[0037] Figure 3 is a structural schematic diagram of the power system provided in the exemplary embodiment of the present disclosure, wherein the output shaft of the second motor is non-coaxial with the output shaft of the differential;

[0038] Figure 4is one of structural diagrams of a power system in which an output shaft of a second motor is not coaxial with an output shaft of a differential provided in an exemplary embodiment of the present disclosure;

[0039] Figure 5 is one of structural diagrams of a power system in which an output shaft of a second motor is not coaxial with an output shaft of a differential provided in an exemplary embodiment of the present disclosure;

[0040] Figure 6 is a structural diagram of a rear drive portion of a power system provided in an exemplary embodiment of the present disclosure;

[0041] Figure 7 is a structural diagram of a power system in an electric only mode provided in an exemplary embodiment of the present disclosure;

[0042] Figure 8 is a structural diagram of a power system when a first motor and a second motor are driven together provided in an exemplary embodiment of the present disclosure;

[0043] Figure 9 is one of structural diagrams of a power system in a hybrid mode provided in an exemplary embodiment of the present disclosure;

[0044] Figure 10 is one of structural diagrams of a power system in a hybrid mode provided in an exemplary embodiment of the present disclosure;

[0045] Figure 11 is a structural diagram of a power system in a power generation mode provided in an exemplary embodiment of the present disclosure;

[0046] Figure 12 is a structural diagram of a power system when a first motor and a second motor are driven together provided in an exemplary embodiment of the present disclosure.

[0047] BRIEF DESCRIPTION OF REFERENCE NUMERALS

[0048] 1, engine; 2, first motor; 3, transmission structure; 4, differential; 5, first axle; 6, first wheel; 7, first transmission shaft; 8, first power transmission switching member; 9, second power transmission switching member; 10, second motor; 11, second axle; 12, drive motor; 31, third power transmission switching member; 32, first sub-end; 33, second sub-end; 34, first gear set; 35, second gear set; 61, front left wheel; 62, front right wheel; 63, rear left wheel; 64, rear right wheel. DETAILED DESCRIPTION

[0049] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort are within the protection scope of the present application.

[0050] According to a first aspect of the present application, referring to Figures 1 to 12 , the present application provides a power system. The arrows in the figure represent the force transmission path.

[0051] Referring to Figure 1 , the power system comprises an engine 1, a first motor 2 and a transmission structure 3, one end of the first motor 2 is connected with the engine 1, the first motor 2 is at least used for generating electricity, a first end of the transmission structure 3 is connected with the other end of the first motor 2, and a second end of the transmission structure 3 is used for outputting power.

[0052] It can be understood that, by arranging the first motor 2 between the engine 1 and the transmission structure 3, the first motor 2 and the engine 1 are directly connected, the components between the first motor 2 and the engine 1 are reduced, the engine 1 can effectively drive the first motor 2 to generate electricity, and the power generation efficiency of the first motor 2 is improved.

[0053] At the same time, by arranging the first motor 2 between the engine 1 and the transmission structure 3, the first motor 2 is connected with the first end of the transmission structure 3, the first motor 2 can output driving force to the transmission structure 3, the first motor 2 has a driving function, and further has a power generation function and a driving function.

[0054] And the engine 1 and the first motor 2 are located on the same side of the transmission structure 3, which is beneficial to improve the structural compactness of the power system.

[0055] That is to say, by arranging the first motor 2 between the engine 1 and the transmission structure 3, the first motor 2 can be used for both power generation and output of driving force, and the first motor 2 has a power generation function and a driving function.

[0056] It can be understood that, by arranging the first motor 2 between the engine 1 and the transmission structure 3, the structural compactness of the power system is also improved.

[0057] It can be understood that in the related art, the power system, the transmission structure 3 is arranged between the first motor 2 and the engine 1, that is, there is still a transmission structure 3 between the first motor 2 and the engine 1, and the transmission efficiency of the transmission structure 3 is difficult to reach 100%, thereby reducing the power generation efficiency of the first motor 2. The present application directly connects the engine 1 and the first motor 2, thereby improving the power generation efficiency of the first motor 2, and compared with the related art, the power generation efficiency of the first motor can be improved by at least 2%.

[0058] It can be understood that in the related art, the power system, the transmission structure 3 is arranged between the first motor 2 and the engine 1, and the first motor 2 can only receive the power output by the transmission structure 3 to generate power, so that the first motor 2 cannot bear the function of outputting driving force, and the first motor 2 only has the function of generating power. The present application arranges the first motor 2 between the engine 1 and the transmission structure 3, so that the first motor 2 can have both the function of generating power and the function of driving, the engine 1 can drive the first motor 2 to generate power, and the first motor 2 can output driving force to the transmission structure 3, so that the first motor 2 can be used for both power generation and output of driving force.

[0059] In some embodiments, the power system comprises a first wheel shaft 5, the first wheel shaft 5 is connected with the second end of the transmission structure 3, the second end of the transmission structure 3 transmits power to the first wheel shaft 5 to rotate the first wheel shaft 5, thereby realizing power transmission.

[0060] In some embodiments, the power system further comprises a first wheel 6, the first wheel 6 is connected with the first wheel shaft 5, and the first wheel shaft 5 is used to drive the first wheel 6 to rotate.

[0061] It can be understood that the second end of the transmission structure 3 transmits power to the first wheel shaft 5 to rotate the first wheel shaft 5, and the first wheel shaft 5 drives the first wheel 6 to rotate, thereby realizing the driving of the first wheel 6.

[0062] In some examples, the power system further comprises a differential 4, the first end of the differential 4 is connected with the second end of the transmission structure 3, the first wheel shaft 5 is connected with the second end of the differential 4, the engine 1 transmits power to the transmission structure 3, the transmission structure 3 transmits power to the differential 4, and the differential 4 transmits power to the first wheel shaft 5, so that the first wheel shaft 5 can drive the first wheel 6 to rotate, thereby realizing power transmission.

[0063] In some embodiments, referring to Figure 1 , the engine 1 and the first motor 2 are coaxially arranged, which simplifies the structure of the power system and is conducive to the miniaturization design of the power system.

[0064] In some examples, the engine 1 and the first motor 2 are coaxially arranged, which means that the engine 1 and the first motor 2 share one shaft, or the output shaft of the engine 1 and the input shaft of the first motor 2 are coaxially arranged.

[0065] For example, the power system further comprises a first transmission shaft 7, which is connected to the engine 1 and the first motor 2 in sequence.

[0066] It can be understood that the engine 1 and the first motor 2 are connected to the transmission structure 3 by using the same shaft, which realizes the coaxial arrangement of the engine 1 and the first motor 2, simplifies the structure of the power system, and is conducive to the miniaturization design of the power system.

[0067] In some embodiments, referring to Figure 1 , the power system further comprises a first power transmission switch 8 connected to the engine 1 and the first motor 2, and the first power transmission switch 8 is switchable between a closed state and an open state.

[0068] It can be understood that the first motor 2 and the first motor 2 are connected to the transmission structure 3 by using the same shaft, which realizes the coaxial arrangement of the engine 1 and the first motor 2, simplifies the structure of the power system, and is conducive to the miniaturization design of the power system.

[0069] When the first power transmission switch 8 is in the closed state, the first power transmission switch 8 connects the engine 1 and the first motor 2, so that the engine 1 can transmit power to the first motor 2, so that power can be transmitted to the transmission structure 3, and at the same time, the engine 1 can drive the first motor 2 to generate electricity.

[0070] When the first power transmission switch 8 is in the open state, the first power transmission switch 8 disconnects the engine 1 and the first motor 2, so that the engine 1 does not provide power to drive the first wheel 6 to rotate.

[0071] In some examples, the first power transmission switch 8 is, for example, a clutch or a transmission. It should be noted that this is only an example of the first power transmission switch 8 and is not specifically limited.

[0072] In some embodiments, referring to Figure 1 , the power system further comprises a second power transmission switch 9 connected to the first motor 2 and the first end of the transmission structure 3, and the second power transmission switch 9 is switchable between a closed state and an open state.

[0073] It can be understood that the first motor 2 and the transmission structure 3 are connected by using the same shaft, which realizes the coaxial arrangement of the engine 1 and the first motor 2, simplifies the structure of the power system, and is conducive to the miniaturization design of the power system.

[0074] When the second power transmission switch member 9 is in the closed state, the second power transmission switch member 9 connects the first motor 2 and the transmission structure 3, so that the power of the engine 1 can be transmitted to the first motor 2 and the transmission structure 3 in turn.

[0075] When the second power transmission switch member 9 is in the open state, the second power transmission switch member 9 disconnects the first motor 2 and the transmission structure 3, so that the power of the engine 1 cannot be transmitted to the transmission structure 3, i.e., the engine 1 does not provide power to drive the first wheel 6 to rotate.

[0076] In some examples, the second power transmission switch member 9 is, for example, a clutch or a transmission. It should be noted that this is only an example of the second power transmission switch member 9 and is not specifically limited.

[0077] In some embodiments, referring to Figure 1 , the transmission structure 3 includes a third power transmission switch member 31, the third power transmission switch member 31 is connected to the first end of the transmission structure 3 and the second end of the transmission structure 3, and the third power transmission switch member 31 can be switched between the closed state and the open state.

[0078] It can be understood that the third power transmission switch member 31 can realize the connection and disconnection between the first end and the second end of the transmission structure 3.

[0079] When the third power transmission switch member 31 is in the closed state, the third power transmission switch member 31 connects the first end and the second end of the transmission structure 3, so that the power of the engine 1 and / or the second motor can be transmitted to the differential 4 to drive the first wheel 6.

[0080] When the third power transmission switch member 31 is in the open state, the third power transmission switch member 31 disconnects the first end and the second end of the transmission structure 3, so that the power of the engine 1 and / or the second motor cannot be transmitted to the transmission structure 3, thereby disconnecting the power transmission between the engine 1 and the first wheel 6 and disconnecting the power transmission between the first motor 2 and the first wheel 6.

[0081] When the power system further includes the second motor 10, the third power transmission switch member 31 can also disconnect the power transmission between the second motor 10 and the first wheel 6.

[0082] In some examples, the third power transmission switch member 31 is, for example, a clutch or a transmission. It should be noted that this is only an example of the third power transmission switch member 31 and is not specifically limited.

[0083] In some embodiments, the power system further includes at least a second motor 10 for driving, and the second motor 10 is connected to the first end of the transmission structure 3.

[0084] It can be understood that the second motor 10 can be used to output driving force to the first end of the transmission structure 3, so that the second end of the transmission structure 3 can output power.

[0085] In some examples, the first motor 2, the second motor 10 and the engine 1 are located on the same side of the transmission structure 3, which is beneficial to improve the structural compactness of the power system.

[0086] In some embodiments, the second motor 10 and the first motor 2 are non-coaxial.

[0087] It can be understood that arranging the second motor 10 and the first motor 2 to be non-coaxial can avoid mutual influence between the second motor 10 and the first motor 2.

[0088] For example, the second motor 10 and the first motor 2 are non-coaxial, which means that the output shaft of the second motor 10 is arranged apart from or parallel to the output shaft of the first motor 2.

[0089] In some embodiments, referring to Figure 1 , the first end of the transmission structure 3 includes a first sub-end 32 and a second sub-end 33, and the first motor 2 is connected to the first sub-end 32 of the transmission structure 3. The second motor 10 is connected to the second sub-end 33 of the transmission structure 3.

[0090] It can be understood that the second motor 10 can transmit power to the transmission structure 3, so that the transmission structure 3 can drive the first wheel with the power.

[0091] Specifically, the transmission structure 3 transmits power to the differential 4, and the differential 4 transmits power to the first axle 5, so that the first axle 5 can drive the first wheel 6 to rotate, so as to realize driving the first wheel 6 to rotate by the second motor 10.

[0092] It can be understood that the first sub-end 32 of the transmission structure 3 and the second sub-end 33 of the transmission structure 3 are connected, and power and / or electric energy can be transmitted between the first sub-end 32 of the transmission structure 3 and the second sub-end 33 of the transmission structure 3, that is, the second sub-end 33 can also be used as a second end for connecting the first motor and the second motor, and the first motor 2 can be connected to the second motor 10, so that the first motor 2 can power the second motor 10, and the engine 1 can drive the first motor 2 and the second motor 10 to generate electricity at the same time.

[0093] For example, the first sub-end 32 of the transmission structure 3 and the second sub-end 33 of the transmission structure 3 can be connected through a gear structure, so that the engine 1 can drive the first motor 2 and the second motor 10 to generate electricity at the same time.

[0094] In some examples, the second motor 10 is connected with the transmission structure 3 and can realize power transmission with one end of the first motor 2, and the other end of the first motor 2 is connected with the engine 1, so that the second motor 10 also has the functions of power generation and driving.

[0095] In some embodiments, the transmission structure further comprises a second gear set 35, a first end of the second gear set 35 is formed as the first end of the transmission structure 3, and a second end of the second gear set 35 is formed as the second end of the transmission structure.

[0096] It can be understood that the driving force provided by the engine or the first motor needs to be output after being decelerated by the second gear set 35, thereby realizing the deceleration effect of the driving force output by the engine or the first motor. The driving force provided by the second motor needs to be output after being decelerated by the first gear set 34 and the second gear set 35, thereby realizing the two-stage deceleration effect of the second motor.

[0097] In some embodiments, the transmission structure comprises a first gear set 34, a first end of the first gear set 34 is formed as the first sub-end 32 of the transmission structure 3, and a second end of the first gear set 34 is formed as the second sub-end of the transmission structure 3.

[0098] It can be understood that the first gear set 34 connects the first motor and the second motor, so that the first motor and the second motor can realize linkage.

[0099] For example, when the engine drives the first motor to generate power, the first motor can transmit the driving force to the second motor through the first gear set 34, so that the second motor can also generate power, thereby making the first motor and the second motor both have the function of power generation.

[0100] It can be understood that when the first gear set 34 and the second gear set 35 are directly connected, the structure of the power system is simpler, the occupied space is smaller, and the cost is lower, as shown in Figure 8 and Figure 12 .

[0101] In some embodiments, referring to Figure 1 and Figure 2 , the output shaft of the second motor 10 is sleeved on the output shaft of the differential 4.

[0102] It can be understood that the output shaft of the second motor 10 is sleeved outside the output shaft of the differential 4, so that the output shaft of the second motor 10 and the output shaft of the differential 4 are sleeved together, reducing the occupied space of the second motor 10 and the differential 4, making the structure of the power system more compact, and being beneficial to the miniaturization design of the power system.

[0103] In some examples, the output shaft of the second motor 10 does not directly drive the output shaft of the differential 4, and this can be achieved by using a bearing or other prior art means between the output shaft of the second motor 10 and the output shaft of the differential 4.

[0104] In some embodiments, the output shaft of the differential 4 is sleeved on the output shaft of the second motor 10.

[0105] It can be understood that sleeving the output shaft of the differential 4 on the output shaft of the second motor 10 allows the output shaft of the second motor 10 and the output shaft of the differential 4 to be sleeved together, which reduces the occupied space of the second motor 10 and the differential 4, and makes the structure of the power system more compact, which is conducive to the miniaturization design of the power system.

[0106] In some examples, the output shaft of the second motor 10 does not directly drive the output shaft of the differential 4, and this can be achieved by using a bearing or other prior art means between the output shaft of the second motor 10 and the output shaft of the differential 4.

[0107] In some embodiments, referring to Figure 3 , Figure 4 and Figure 5 , the output shaft of the second motor 10 is non-coaxial with the output shaft of the differential 4.

[0108] It can be understood that arranging the output shaft of the second motor 10 and the output shaft of the differential 4 to be non-coaxial can avoid the mutual influence between the output shaft of the second motor 10 and the output shaft of the differential 4.

[0109] For example, the output shaft of the second motor 10 is non-coaxial with the output shaft of the differential 4, which means that the output shaft of the second motor 10 and the output shaft of the differential 4 are arranged separately or parallel to each other.

[0110] In some embodiments, the first axle 5 and the output shaft of the differential 4 are coaxially arranged, which simplifies the structure of the power system and is conducive to the miniaturization design of the power system.

[0111] In some examples, the first axle 5 and the output shaft of the differential 4 are coaxially arranged, which means that the first axle 5 and the output shaft of the differential 4 are coaxially arranged, i.e. sharing a shaft, or the first axle 5 and the output shaft of the differential 4 are sleeved on each other.

[0112] In some embodiments, the power system further comprises a housing, and the second motor 10 and the engine 1 are both mounted in the housing.

[0113] It can be understood that the second motor 10 and the first motor 2 share the housing, which simplifies the structure of the power system, improves the compactness of the structure of the power system, and is conducive to the miniaturization design of the power system.

[0114] In some embodiments, the power system further comprises a driving motor 12 and a second wheel shaft 11, the driving motor 12 is connected with the second wheel shaft 11, and the driving motor 12 is configured to drive the second wheel shaft 11 to rotate.

[0115] It can be understood that the driving motor 12 can output driving force to drive the second wheel shaft 11 to rotate, so that the power system has at least two sets of driving, and the first wheel shaft 5 and the second wheel shaft 11 can be used to drive different components to rotate.

[0116] For example, the first wheel shaft 5 can be used to drive the front wheels of the vehicle to rotate, and the second wheel shaft 11 can be used to drive the rear wheels of the vehicle to rotate.

[0117] In some embodiments, the power system further comprises a second wheel, the second wheel is connected with the second wheel shaft 11, and the second wheel shaft 11 is configured to drive the second wheel to rotate.

[0118] It can be understood that the driving motor 12 outputs driving force to drive the second wheel shaft 11 to rotate, and the second wheel shaft 11 drives the second wheel to rotate, thereby achieving the driving of the second wheel.

[0119] In some examples, referring to Figure 1 and Figure 6 , the first wheel 6 comprises a left front wheel 61 and a right front wheel 62, the second wheel comprises a left rear wheel 63 and a right rear wheel 64, the power system further comprises a second wheel shaft 11 and a driving motor 12, the left front wheel 61 and the right front wheel 62 are connected with the first wheel shaft 5, and the first wheel shaft 5 is configured to drive the left front wheel 61 and the right front wheel 62 to rotate, the left rear wheel 63 and the right rear wheel 64 are connected with the second wheel shaft 11, and the driving motor 12 is connected with the second wheel shaft 11, and the driving motor 12 is configured to drive the second wheel shaft 11 to rotate, and the second wheel shaft 11 is configured to drive the left rear wheel 63 and the right rear wheel 64 to rotate.

[0120] In some embodiments, referring to Figure 7 , the first power transmission switch 8 and the second power transmission switch 9 are in an open state, and the third power transmission switch 31 is in a closed state, at this time, the engine 1 and the first motor 2 are disconnected from the transmission structure 3, the second motor 10 transmits power to the transmission structure 3, and then the power is sequentially transmitted to the differential 4 and the first wheel shaft 5, thereby achieving the driving of the first wheel 6, and further achieving the pure electric driving of the first wheel 6, so that the vehicle is in a pure electric mode, and the front drive of the vehicle is realized.

[0121] It can be understood that, referring to Figure 6 and Figure 7 , at this time, the synchronous control driving motor 12 drives the second wheel shaft 11 to rotate, so that the vehicle is in a four-wheel drive mode.

[0122] In some examples, referring toFigure 8 , the first power transmission switch 8 is in the open state, the second power transmission switch 9 and the third power transmission switch 31 are in the closed state, at this time the engine 1 and the first motor 2 are disconnected, the first motor 2 and the second motor 10 and the transmission structure 3 are in communication, and the first end and the second end of the transmission structure 3 are also in communication, at this time the first motor 2 and the second motor 10 can both output driving force, that is, the first motor 2 and the second motor 10 both have driving function, so that the first motor 2 and the second motor 10 can jointly drive the first wheel 6, and front drive of the vehicle is realized.

[0123] It can be understood that, referring to Figure 6 and Figure 8 at this time, the synchronous control driving motor 12 drives the second axle 11 to rotate, that is, the vehicle is in four-wheel drive mode.

[0124] The transmission paths of the first motor 2 and the second motor 10 do not interfere with each other, and the first motor 2 and the second motor 10 can both drive the first wheel 6 independently. For example, when the second motor 10 is damaged, the first motor 2 can also be used to drive the first wheel 6 independently.

[0125] In some embodiments, referring to Figure 9 , the first power transmission switch 8, the second power transmission switch 9 and the third power transmission switch 31 are all in the closed state, at this time the engine 1, the first motor 2 and the transmission structure 3 are in communication in turn, and the second motor 10 and the transmission structure 3 are in communication, that is, at this time the engine 1 and the second motor 10 can both drive the first wheel 6 to rotate, so that the vehicle is in hybrid mode and front drive of the vehicle is realized.

[0126] That is, the first motor 2 and the second motor 10 can both be used for driving, when the power of the second motor 10 is insufficient, the first motor 2 can jointly drive the second motor 10, which can increase the driving force of the power system and improve the power performance of the power system.

[0127] When the second motor 10 fails, the first motor 2 can be used for driving, which ensures that the power system still has driving force output and improves the redundancy of the power system.

[0128] It can be understood that, referring to Figure 6 and Figure 9 at this time, the synchronous control driving motor 12 drives the second axle 11 to rotate, that is, the vehicle is in four-wheel drive mode.

[0129] In some examples, referring to Figure 10, the first power transmission switch 8 and the third power transmission switch 31 are in the closed state, and the second power transmission switch 9 is in the open state, at this time, the engine 1 and the first motor 2 are in communication, the connection between the first motor 2 and the transmission structure 3 is disconnected, and the second motor 10 and the transmission structure 3 are in communication. That is, at this time, the second motor 10 can drive the first wheel 6 to rotate, and the engine 1 can make the first motor 2 generate electricity, and the electricity generated by the first motor 2 can be used for the second motor 10, and the front drive of the vehicle is realized.

[0130] It can be understood that, referring to Figure 6 and Figure 10 , at this time, the synchronous control driving motor 12 drives the second axle 11 to rotate, that is, the vehicle is in four-wheel drive mode.

[0131] In some embodiments, referring to Figure 11 , the first power transmission switch 8 is in the closed state, the second power transmission switch 9 and the third power transmission switch 31 are in the open state, at this time, the connection between the first motor 2 and the transmission structure 3 is disconnected, the connection between the first end and the second end of the transmission structure 3 is disconnected, and the second motor 10 and the differential 4 are also in the disconnected state, and then at this time, the engine 1 and the second motor 10 cannot transmit power to the first wheel 6, and the engine 1 can drive the first motor 2 to generate electricity, so that the vehicle is in the original place electricity generation mode.

[0132] It can be understood that, referring to Figure 6 and Figure 11 , at this time, the synchronous control driving motor 12 drives the second axle 11 to rotate, that is, the vehicle is in four-wheel drive mode.

[0133] In some examples, referring to Figure 12 , the first power transmission switch 8 and the second power transmission switch 9 are in the closed state, and the third power transmission switch 31 is in the open state, at this time, the connection between the first end and the second end of the transmission structure 3 is disconnected, and the engine 1 and the second motor 10 cannot transmit power to the first wheel 6, and the engine 1 can drive the first motor 2 and the second motor 10 to generate electricity, that is, at this time, the first motor 2 and the second motor 10 have the function of generating electricity.

[0134] It can be understood that, referring to Figure 6 and Figure 12 , at this time, the synchronous control driving motor 12 drives the second axle 11 to rotate, that is, the vehicle is in four-wheel drive mode.

[0135] When the first motor 2 is damaged, the second motor 10 can also be used alone to generate electricity, which increases the system redundancy.

[0136] The application controls the opening and closing states of the first power transmission switch 8, the second power transmission switch 9 and the third power transmission switch 31, so that the first motor 2 and the second motor 10 can be used for both power generation and driving, the use efficiency of the first motor 2 and the second motor 10 is improved, waste is avoided, and the overall structure of the power system is simple.

[0137] According to a second aspect of the application, the application provides a vehicle comprising the power system.

[0138] It can be understood that the first motor 2 is arranged between the engine 1 and the transmission structure 3, so that the first motor 2 and the engine 1 are directly connected, the components between the first motor 2 and the engine 1 are reduced, the engine 1 can effectively drive the first motor 2 to generate power, and the power generation efficiency of the first motor 2 is improved.

[0139] In some examples, the vehicle can be a fuel automobile, a plug-in hybrid electric vehicle or a new energy vehicle, and the application does not make specific limitation.

[0140] In the description of the application, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features. In the description of the application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0141] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0142] The embodiments, implementation manners and related technical features of the application can be combined or replaced with each other without conflict.

[0143] The above is only a preferred embodiment of the application, and does not limit the application in any form, but any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the application, without departing from the technical solution of the application, still belongs to the scope of the technical solution of the application.

Claims

1. A power system, characterized by, The power system comprises: an engine; a first motor, one end of the first motor being connected with the engine, the first motor being used at least for power generation; a transmission structure, a first end of the transmission structure being connected with the other end of the first motor, a second end of the transmission structure being used for output of power.

2. The power system of claim 1, wherein, The engine and the first motor are coaxially arranged.

3. The power system of claim 1, wherein, The power system further comprises a first power transmission switch, the first power transmission switch being connected with the engine and the first motor, the first power transmission switch being switchable between a closed state and an open state.

4. The power system of claim 1, wherein, The power system further comprises a second power transmission switch, the second power transmission switch being connected with the first motor and the first end of the transmission structure, the second power transmission switch being switchable between a closed state and an open state.

5. The power system of claim 1, wherein, The transmission structure comprises a third power transmission switch, the third power transmission switch being connected with the first end of the transmission structure and the second end of the transmission structure, the third power transmission switch being switchable between a closed state and an open state.

6. The power system of claim 1, wherein, The transmission structure further comprises a second gear set, a first end of the second gear set being formed as the first end of the transmission structure, a second end of the second gear set being formed as the second end of the transmission structure.

7. The power system of any one of claims 1 to 6, wherein, The power system further comprises a second motor used at least for driving, the second motor being connected with the first end of the transmission structure.

8. The power system of claim 7, wherein, The second motor is non-coaxial with the first motor.

9. The power system of claim 7, wherein, The first end of the transmission structure comprises a first sub-end and a second sub-end, the first motor being connected with the first sub-end of the transmission structure, the second motor being connected with the second sub-end of the transmission structure.

10. The power system of claim 9, wherein, The transmission structure comprises a first gear set, a first end of the first gear set being formed as the first sub-end of the transmission structure, a second end of the first gear set being formed as the second sub-end of the transmission structure.

11. The power system of claim 7, wherein, The power system further comprises a differential, the differential being connected with the second end of the transmission structure.

12. The power system of claim 11, wherein, An output shaft of the second motor is sleeved on an output shaft of the differential; or, An output shaft of the differential is sleeved on an output shaft of the second motor.

13. The power system of claim 11, wherein, The output shaft of the second motor is non-coaxial with the output shaft of the differential.

14. The power system of claim 7, wherein, The power system further comprises a housing, the second motor and the engine being mounted in the housing.

15. The power system of any one of claims 11 to 13, wherein, The power system further comprises a first wheel shaft, the first wheel shaft being connected with the second end of the transmission structure.

16. The power system of claim 15, wherein, The power system further comprises a first wheel, the first wheel being connected with the first wheel shaft, the first wheel shaft being used for driving the first wheel to rotate.

17. The power system of claim 15, wherein, The first wheel shaft and the output shaft of the differential are coaxially arranged.

18. The power system of any one of claims 1 to 5, wherein, The power system further comprises a driving motor and a second wheel shaft, the driving motor being connected with the second wheel shaft, the driving motor being used for driving the second wheel shaft to rotate.

19. The power system of claim 18, wherein, The power system further comprises a second wheel, the second wheel being connected with the second wheel shaft, the second wheel shaft being used for driving the second wheel to rotate.

20. A vehicle characterized by The power system comprises any one of claims 1 to 19.

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