Four-wheel drive power system and vehicle
By designing a power distribution module and a wheel module in a four-wheel drive vehicle, the effective connection and distribution of the power of the four wheels is solved, and the problem of wheel slippage and low torque in complex road conditions is improved, and the ability to escape and driving performance is improved.
Patent Information
- Application Number
- CN202422384364.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Existing four-wheel drive vehicles are prone to wheel slippage under complex road conditions, and the vehicle is in a low torque state, making it difficult to get out of trouble.
A four-wheel drive power system is designed, including a wheel module and a power distribution module. The wheel module is installed on each wheel and is equipped with a wheel side drive motor. The power distribution module realizes the connection and distribution of the four wheels through the front axle, rear axle and central connection module. It has a differential, locking and sliding locking mechanism to ensure that the power is effectively distributed between the wheels.
This power system can effectively solve the problems of wheel slippage and low torque under complex road conditions, and improve the vehicle's ability to escape and driving performance.
Smart Images
Figure CN223030787U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicles, and more specifically, relates to a four-wheel drive power system and a vehicle. Background Art
[0002] Existing four-wheel drive vehicles lack connection modules between the left and right half-axles and the front and rear axles. When driving on sandy, muddy, icy and snowy roads, the wheels are prone to slipping, and the vehicle is in a low-torque state and cannot get out of trouble. It is not enough to cope with more complex road conditions. Utility Model Content
[0003] The utility model aims to provide a four-wheel drive power system, aiming to solve the problem that when a vehicle is driving on a complex road, the wheels slip and the vehicle is in a low torque state, making it difficult for the vehicle to escape.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a four-wheel drive power system, including:
[0005] A wheel module, the wheel module is installed on each wheel, the wheel module includes a wheel side drive motor, and the wheel side drive motor is drivingly connected to the wheel on the same side;
[0006] A power distribution module, the power distribution module includes a front axle connection module, a rear axle connection module and a central connection module, the front axle connection module is located between the two front wheel modules and is respectively connected to the wheel-side drive motors on both sides by transmission, the rear axle connection module is located between the two rear wheel modules and is respectively connected to the wheel-side drive motors on both sides by transmission, and the central connection module is connected between the front axle connection module and the rear axle connection module.
[0007] In a possible implementation, the front axle connection module and the rear axle connection module both have a differential structure, and the front axle connection module and the rear axle connection module are used to combine and superimpose output power through the differential structure.
[0008] In a possible implementation, the front axle connection module and the rear axle connection module both have a locking structure, and the front axle connection module and the rear axle connection module are used to combine and superimpose the output power through the locking structure.
[0009] In a possible implementation, the front axle connection module, the rear axle connection module and the central connection module are all equipped with a sliding friction locking mechanism, and the front axle connection module, the rear axle connection module and the central connection module are used to distribute the power of any wheel to other wheels through the sliding friction locking mechanism.
[0010] In a possible implementation, the front axle connection module and the rear axle connection module are both equipped with a clutch device and a differential device, and the front axle connection module and the rear axle connection module are used to combine and superimpose the output power through the clutch device in a non-closed state, or are used to combine and superimpose the output power through the differential device.
[0011] In a possible implementation, the clutch device is a slipping clutch or a multi-plate clutch.
[0012] In a possible implementation, the wheel module further includes a wheel-side reducer, the output end of the wheel-side drive motor is connected to the wheel-side reducer, and the wheel-side reducer is a single-speed reducer or a multi-speed reducer.
[0013] In a possible implementation, the four-wheel drive power system further includes a range extender module, and the range extender module is installed in the front cabin.
[0014] In a possible implementation, the four-wheel drive power system also includes a range extender module, which replaces the two wheel modules of the front wheels and the front axle connection module and is installed on the front axle, and the range extender module is connected to the central connection module.
[0015] The utility model provides a four-wheel drive power system with the beneficial effect that, compared with the prior art, four wheel modules are respectively installed on the corresponding four wheels, wherein each wheel module includes a wheel-side drive motor. The power distribution module includes a front axle connection module, a rear axle connection module and a central connection module, wherein the front axle connection module is connected between the two front wheels, the rear axle connection module is connected between the two rear wheels, and the central connection module is connected between the front axle connection module and the rear axle connection module. The wheel-side drive motor can realize power transmission on both sides, one side is connected to the wheel to directly transmit power to the wheel, and the other side is connected to the front axle connection module or the rear axle connection module to transmit power to the central connection module, and the central connection module realizes the connection and distribution of power to the four wheels through the front axle connection module and the rear axle connection module. The power system has a simple structure and flexible control, solves the problem of poor escape ability of existing vehicles, and has excellent driving performance under complex road conditions.
[0016] The utility model also provides a vehicle, comprising the four-wheel drive power system.
[0017] The beneficial effect of a vehicle provided by the utility model is that, compared with the prior art, since the vehicle uses the above-mentioned four-wheel drive power system, it has the same beneficial effects as the four-wheel drive power system, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0019] Figure 1 Schematic structural diagram of a four-wheel drive power system provided by the present utility model;
[0020] Figure 2 Schematic structural diagram of a four-wheel drive power system provided by the first embodiment of the present utility model;
[0021] Figure 3 Schematic structural diagram of a four-wheel drive power system provided by the second embodiment of the present utility model;
[0022] Figure 4 Schematic structural diagram of a four-wheel drive power system provided by the third embodiment of the present utility model.
[0023] In the figure: 1, engine; 2, generator; 3, wheel-side drive motor; 4, wheel-side reducer; 5, front axle connection module; 6, central connection module; 7, rear axle connection module; 8, range extender module. Detailed implementation manners
[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model more clear and understandable, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0025] Unless otherwise clearly defined, when using terms such as "first", "second" or "third", etc., they are all used to distinguish different objects and not for describing a specific order.
[0026] Unless otherwise clearly defined, for orientation terms, when using terms such as "center", "horizontal", "longitudinal", "level", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", "high", "low", etc. to indicate the orientation or position relationship, it is based on the orientation and position relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present utility model.
[0027] Please refer toFigure 1 Now, a four-wheel drive power system provided by the utility model is described. A four-wheel drive power system includes a wheel module and a power distribution module.
[0028] A wheel module is installed on each wheel, and the wheel module includes a wheel-side drive motor 3, which is connected to the wheel on the same side by transmission; the power distribution module includes a front axle connection module 5, a rear axle connection module 7 and a central connection module 6. The front axle connection module 5 is located between the two front wheel modules and is connected to the wheel-side drive motors 3 on both sides by transmission, the rear axle connection module 7 is located between the two rear wheel modules and is connected to the wheel-side drive motors 3 on both sides by transmission, and the central connection module 6 is connected between the front axle connection module 5 and the rear axle connection module 7.
[0029] The utility model provides a four-wheel drive power system. Compared with the prior art, four wheel modules are respectively installed on the corresponding four wheels, wherein each wheel module includes a wheel side drive motor 3. The power distribution module includes a front axle connection module 5, a rear axle connection module 7 and a central connection module 6. The front axle connection module 5 is connected between the two front wheels, the rear axle connection module 7 is connected between the two rear wheels, and the central connection module 6 is connected between the front axle connection module 5 and the rear axle connection module 7. The wheel side drive motor 3 can realize power transmission on both sides. One side is connected to the wheel to directly transmit the power to the wheel, and the other side is connected to the front axle connection module 5 or the rear axle connection module 7 to transmit the power to the central connection module 6. The central connection module 6 realizes the connection and distribution of the power of the four wheels through the front axle connection module 5 and the rear axle connection module 7. The power system has a simple structure and flexible control, solves the problem of poor escape ability of existing vehicles, and has excellent driving performance under complex road conditions.
[0030] Preferably, both the front axle connection module 5 and the rear axle connection module 7 have a differential structure, and the front axle connection module 5 and the rear axle connection module 7 are used to output power by combining forces through the differential structure. The differential structure can enable the two front wheels or the two rear wheels to rotate at different speeds, realize the combined force and superposition output power of the front wheels and the rear wheels, and realize the output of large torque, thereby improving the vehicle's ability to quickly escape from trouble.
[0031] See also Figure 2In the first embodiment, both the front axle connection module 5 and the rear axle connection module 7 have a locking structure, and the front axle connection module 5 and the rear axle connection module 7 are used to output power by combining forces through the locking structure. In the first embodiment, both the front axle connection module 5 and the rear axle connection module 7 do not have a differential structure, and the front axle connection module 5 and the rear axle connection module 7 achieve the differential function of each wheel through different speed regulation of the two wheel-side drive motors 3 located on the same bridge, and achieve the combined force superposition output power of the front and rear wheels through the locking mechanism, and can also achieve the output of large torque, thereby improving the vehicle's ability to quickly escape from trouble.
[0032] In addition, the front axle connection module 5, the rear axle connection module 7 and the central connection module 6 are all equipped with a sliding friction locking mechanism, which is used to distribute the power of any wheel to other wheels through the sliding friction locking mechanism. The sliding friction locking mechanism refers to a locking mechanism used in certain mechanical devices, which can be locked or unlocked by sliding friction. This mechanism is used in many fields, such as the clutch in the automobile transmission, the blade locking mechanism of hand tools, etc.
[0033] When one or more wheels slip, the system distributes the power of the slipping wheels to the wheels with better grip through the above-mentioned connection module, thereby ensuring sufficient power when the wheels slip, and realizing the vehicle's ability to escape and climb. This embodiment provides a four-wheel drive all-terrain solution, which can effectively improve its ability to escape from complex road conditions, and is particularly suitable for off-road vehicles.
[0034] See also Figure 3 In the second embodiment, the front axle connection module 5 and the rear axle connection module 7 have the same structure, and both are equipped with a clutch device and a differential device. The clutch device is a slip clutch or a multi-plate clutch. The front axle connection module 5 and the rear axle connection module 7 are used to combine and superimpose the output power through the clutch device in a non-closed state, or the front axle connection module 5 and the rear axle connection module 7 are used to combine and superimpose the output power through the differential device, both of which can achieve the output of large torque of the vehicle and enhance the vehicle's ability to quickly escape from trouble.
[0035] Preferably, the wheel module further comprises a wheel reducer 4, the output end of the wheel drive motor 3 is connected to the wheel reducer 4, and the wheel reducer 4 is a single-speed reducer or a multi-speed reducer. A single-speed reducer is a transmission device with only one reduction ratio, and its internal structure generally has only one pair of gear pairs and outputs one speed.
[0036] A multi-speed reducer is a transmission device that can provide multiple reduction ratios. It changes the output speed and torque by different combinations of gear teeth. Compared with a single-speed reducer, the multi-speed reducer offers more flexibility and efficiency, allowing the vehicle to optimize performance and fuel economy under different speed and load conditions.
[0037] Compared with using a single-speed reducer, the wheel-side reducer 4 using a multi-speed reducer has a wider range of rotational speed adjustment and more adjustment gears for each wheel, providing more flexible control over the rotational speed of the wheels.
[0038] Please refer to Figures 1 to 3 , the power system of the four-wheel drive also includes an extended-range module 8, which is installed in the front engine compartment. The extended-range module 8 includes an engine 1 and a generator 2, which is the main power supply unit of the vehicle. When the power of the on-vehicle battery is low, the generator 2 driven by the engine 1 is enabled to charge the battery or directly supply power, thereby increasing the driving range of the vehicle. During braking, the vehicle can also convert part of the kinetic energy into electrical energy through the energy recovery system and store it in the battery, improving the overall energy efficiency.
[0039] Please refer to Figure 4 , in the third embodiment, the power system of the four-wheel drive also includes an extended-range module 8, which replaces the two wheel modules and the front axle connection module 5 of the front-side wheels and is installed on the front axle. The extended-range module 8 is connected to the central connection module 6. The extended-range module 8 is a hybrid power supply unit composed of an engine 1, a generator 2 and a transmission mechanism. The engine 1 and the generator 2 can be connected in series, and the engine 1 and the generator 2 are combined to realize the off-road four-wheel drive mode, having good adaptability.
[0040] Based on the same inventive concept, the present utility model also provides a vehicle that uses the above-mentioned four-wheel drive power system, and thus has the same beneficial effects as the above-mentioned four-wheel drive power system.
[0041] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A four-wheel drive power system, characterized in that: include: A wheel module, the wheel module being mounted on each wheel, the wheel module comprising a wheel side drive motor (3), the wheel side drive motor (3) being transmission-connected to the wheels on the same side; A power distribution module, the power distribution module comprising a front axle connection module (5), a rear axle connection module (7) and a central connection module (6), the front axle connection module (5) being located between the two front wheel modules and respectively connected to the wheel-side drive motors (3) on both sides by transmission, the rear axle connection module (7) being located between the two rear wheel modules and respectively connected to the wheel-side drive motors (3) on both sides by transmission, and the central connection module (6) being connected between the front axle connection module (5) and the rear axle connection module (7).
2. A four-wheel drive power system as claimed in claim 1, characterized in that: The front axle connection module (5) and the rear axle connection module (7) are both provided with a differential structure, and the front axle connection module (5) and the rear axle connection module (7) are used to combine forces and superimpose output power through the differential structure.
3. A four-wheel drive power system as claimed in claim 1, characterized in that: The front axle connection module (5) and the rear axle connection module (7) are both provided with a locking structure, and the front axle connection module (5) and the rear axle connection module (7) are used to combine forces and output power through the locking structure.
4. A four-wheel drive power system as claimed in claim 1, characterized in that: The front axle connection module (5), the rear axle connection module (7) and the central connection module (6) are all provided with a sliding friction locking mechanism, and the front axle connection module (5), the rear axle connection module (7) and the central connection module (6) are used to distribute the power of any wheel to other wheels through the sliding friction locking mechanism.
5. A four-wheel drive power system as claimed in claim 1, characterized in that: The front axle connection module (5) and the rear axle connection module (7) are both provided with a clutch device and a differential device. The front axle connection module (5) and the rear axle connection module (7) are used to output power by combining forces through the clutch device in a non-closed state, or are used to output power by combining forces through the differential device.
6. A four-wheel drive power system as claimed in claim 5, characterized in that: The clutch device is a slip clutch or a multi-plate clutch.
7. A four-wheel drive power system as claimed in claim 1, characterized in that: The wheel module also includes a wheel-side reducer (4), the output end of the wheel-side drive motor (3) is connected to the wheel-side reducer (4), and the wheel-side reducer (4) is a single-speed reducer or a multi-speed reducer.
8. A four-wheel drive power system according to any one of claims 1 to 7, characterized in that: The four-wheel drive power system also includes a range extender module (8), and the range extender module (8) is installed in the front cabin.
9. A four-wheel drive power system according to any one of claims 1 to 7, characterized in that: The four-wheel drive power system also includes a range-extending module (8), which replaces the two wheel modules of the front wheels and the front axle connection module (5) and is installed on the front axle. The range-extending module (8) is connected to the central connection module (6).
10. A vehicle, characterized in that: A four-wheel drive power system comprising any one of claims 1-9.