Electric driving system provided with one-way bearing

Abstract

The utility model relates to the technical field of transmission, in particular to an electric driving system provided with a one-way bearing, which specifically comprises a box body, a first planetary gear train, a second planetary gear train, a first motor, a first motor shaft, a second motor, a second motor shaft, a fifth transmission wheel, an output wheel and a pedal shaft, at least one second planet shaft is connected with a fifth transmission wheel; the output wheel is in transmission fit with the fifth transmission wheel through the second transmission wheel; a third transmission wheel on the pedal shaft is in transmission fit with the gear ring; a second motor shaft of the second motor is arranged on the box body through a second bearing; the second bearing is a one-way bearing, so that the second motor shaft can only freely rotate in a preset direction; the third transmission wheel is sleeved on the pedal shaft through a first bearing; the first bearing is a one-way bearing so that torque can be input from the pedal shaft in a one-way mode. In this way, stepless speed change adjustment can be achieved through double-motor regulation and control, the overall structure is simple, and cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission, in particular to an electric drive system equipped with a one-way bearing. Background Art

[0002] Electric bicycles, also known as hybrid bicycles or ebikes, combine the leisure and effortlessness of cycling and have become increasingly popular in recent years. Most existing electric-assisted bicycles have electric drive systems that are solely for power assistance, with speed adjustment achieved through the bicycle's transmission system. A few manufacturers offer products with stepped speed adjustment through traditional gear shifting technology. Currently, the electric drive systems of most electric bicycles on the market consist of a separate motor and transmission mechanism.

[0003] Such a structure can only meet the needs of electric drive, but cannot achieve convenient and fast speed change; at the same time, the separate motor and speed change mechanism make the entire electric drive system complex in structure and large in size, which brings inconvenience to loading and unloading and maintenance. Utility Model Content

[0004] The purpose of the present invention includes, for example, providing an electric drive system equipped with a one-way bearing, which can achieve stepless speed adjustment through dual-motor control, and has a simple overall structure and lower cost.

[0005] The embodiment of the present utility model can be implemented as follows:

[0006] In a first aspect, the present invention provides an electric drive system configured with a one-way bearing, comprising:

[0007] Box body, first planetary gear train, second planetary gear train, first motor, first motor shaft, second motor, second motor shaft, fifth transmission wheel, output wheel, pedal shaft;

[0008] The first planetary gear train includes a ring gear, a first planet carrier, a first sun gear, a first planet gear, and a first planet shaft that cooperate with each other; the first planet carrier is integrated on the housing, and the first motor is connected to the first sun gear via a first motor shaft to drive the first sun gear to rotate;

[0009] The second planetary gear train includes a ring gear, a second sun gear, a second planet gear, and a second planet shaft that cooperate with each other; the second motor is connected to the second sun gear via a second motor shaft to drive the second sun gear to rotate;

[0010] The fifth transmission wheel is rotatably disposed in the housing via a third bearing; at least one of the second planetary shafts is connected to the fifth transmission wheel, so that when the second planetary wheel revolves, the fifth transmission wheel is driven to rotate;

[0011] The output wheel cooperates with the fifth transmission wheel through the second transmission wheel, so that the fifth transmission wheel can drive the output wheel to rotate;

[0012] A third transmission wheel is provided on the pedal shaft, and the third transmission wheel cooperates with the ring gear to drive the ring gear to rotate through the rotation of the pedal shaft;

[0013] The second motor has a second motor shaft, and the second sun gear is fixedly mounted on the second motor shaft. The second motor shaft is mounted on the housing via a second bearing. The second bearing is a one-way bearing, so that the second motor shaft is limited to free rotation in a preset direction.

[0014] The third transmission wheel is mounted on the pedal shaft through a first bearing; the first bearing is a one-way bearing, so that when torque is input from the pedal shaft, the third transmission wheel is driven to rotate synchronously through the first bearing, and when torque is input from the third transmission wheel, the first bearing is idle, the torque will not be transmitted to the pedal shaft, and the pedal shaft will not rotate with the third transmission wheel.

[0015] In an optional embodiment, the second bearing is a one-way deep groove ball bearing.

[0016] In an optional embodiment, the first bearing is a one-way needle roller bearing.

[0017] In an optional embodiment, the axis center line of the fifth transmission gear, the axis center line of the first sun gear, and the axis center line of the second sun gear are all coaxially arranged.

[0018] In an optional embodiment, the second transmission wheel and the fifth transmission wheel may be driven by gears, belts or chains;

[0019] And / or gear transmission, belt transmission or chain transmission can be adopted between the third transmission wheel and the ring gear.

[0020] In an optional embodiment, the output wheel can be designed as a gear, a pulley or a sprocket.

[0021] In an optional embodiment, the second transmission wheel is coaxially arranged with the output wheel; the fifth transmission wheel is in transmission cooperation with the second transmission wheel, so that when the fifth transmission wheel rotates, the output wheel is driven to rotate through the second transmission wheel.

[0022] In an optional embodiment, the second transmission wheel is coaxially arranged with the pedal shaft, and the output wheel is fixed on the second transmission wheel.

[0023] In an optional embodiment, along the axial direction of the ring gear, the first motor and the second motor are respectively located on both sides of the ring gear.

[0024] In an optional embodiment, the second planetary shaft is arranged on the fifth transmission wheel, so that the fifth transmission wheel can serve as a planet carrier of the second planetary wheel.

[0025] The beneficial effects of the embodiments of the present invention include, for example:

[0026] An electric drive system configured with a one-way bearing according to the present invention includes a housing, a first planetary gear train, a second planetary gear train, a first motor, a second motor, a fifth transmission wheel, an output wheel, and a pedal shaft. During operation, the pedaling force from a single pedal wheel sequentially rotates the pedal shaft, the third transmission wheel, and the ring gear. Simultaneously, the first motor operates and cooperates with the first planetary gear train to drive the ring gear. This allows the pedaling force and the first motor's power to converge at the ring gear. Furthermore, the second motor operates and cooperates with the second planetary gear train to sequentially rotate the fifth transmission wheel and the output wheel. This allows the power from the first convergence at the ring gear and the power from the second motor to converge at the fifth transmission wheel. The electric drive system configured with a one-way bearing can achieve at least a dual-motor pure electric drive mode, a pure human-powered drive mode, and a hybrid drive mode combining human-powered and dual-motor operation. The first bearing prevents the first motor from rotating the pedal shaft during pure electric dual-motor operation, while the second bearing ensures that the pure human-powered riding mode can be achieved. In summary, such an electric drive system achieves functional innovation that both assists power and speed; at the same time, because a separate gear transmission mechanism is eliminated, the overall vehicle structure is simplified and costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a structural schematic diagram of an electric drive system equipped with a one-way bearing according to an embodiment of the present utility model;

[0029] Figure 2 This is a schematic structural diagram of a gear ring of an electric drive system equipped with a one-way bearing according to an embodiment of the present invention.

[0030] Icons: A01-output wheel; A02-second transmission wheel; A03-third transmission wheel; A04-first bearing; A05-pedal shaft; B01-first motor; B02-first motor shaft; B03-second motor; B04-second motor shaft; B05-second bearing; C01-housing; D01-first sun gear; D02-first planetary shaft; D03-first planetary gear; D04-ring gear; D041-first inner gear; D042-outer gear; second inner gear-D043; D05-second planetary gear; D06-fifth transmission wheel; D07-second planetary shaft; D08-second sun gear; 11-third bearing. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0036] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention can be combined with each other.

[0037] Please refer to Figure 1 This embodiment provides an electric drive system configured with a one-way bearing, comprising:

[0038] Case C01, first planetary gear train, second planetary gear train, first motor B01, first motor shaft B02, second motor B03, second motor shaft B04, fifth transmission wheel D06, output wheel A01, pedal shaft A05;

[0039] The first planetary gear train includes a ring gear D04, a first planet carrier, a first sun gear D01, a first planet gear D03, and a first planet shaft D02 that cooperate with each other. The first planet carrier is integrated into the housing C01. The first motor B01 is connected to the first sun gear D01 via the first motor shaft B02 to drive the first sun gear D01 to rotate.

[0040] The second planetary gear train includes a ring gear D04, a second sun gear D08, a second planet gear D05, and a second planet shaft D07 that cooperate with each other; the second motor B03 is connected to the second sun gear D08 via the second motor shaft B04 to drive the second sun gear D08 to rotate;

[0041] The fifth transmission wheel D06 is rotatably disposed in the housing C01 via a third bearing 11. At least one second planetary shaft D07 is connected to the fifth transmission wheel D06 so that when the second planetary wheel D05 revolves, the fifth transmission wheel D06 is driven to rotate.

[0042] The output wheel A01 cooperates with the fifth transmission wheel D06 through the second transmission wheel A02, so that the fifth transmission wheel D06 can drive the output wheel A01 to rotate;

[0043] A third transmission wheel A03 is provided on the pedal shaft A05. The third transmission wheel A03 cooperates with the ring gear D04 to rotate through the rotation of the pedal shaft A05.

[0044] The second motor B03 has a second motor shaft B04, and the second sun gear D08 is fixed to the second motor shaft B04. The second motor shaft B04 is mounted in the housing C01 via a second bearing B05. The second bearing B05 is a one-way bearing, which restricts the second motor shaft B04 to free rotation in a predetermined direction.

[0045] The third transmission wheel A03 is sleeved on the pedal shaft A05 through the first bearing A04; the first bearing A04 is a one-way bearing, so that when torque is input from the pedal shaft A05, the third transmission wheel A03 is driven to rotate synchronously through the first bearing A04, and when torque is input from the third transmission wheel A03, the first bearing A04 idles, the torque will not be transmitted to the pedal shaft A05, and the pedal shaft A05 will not rotate with the third transmission wheel A03.

[0046] This electric drive system with one-way bearings includes a housing C01, a first planetary gear train, a second planetary gear train, a first motor B01, a second motor B03, a fifth transmission wheel D06, an output wheel A01, and a pedal shaft A05. During operation, pedaling force alone sequentially rotates the pedal shaft A05, the third transmission wheel A03, and the ring gear D04. Simultaneously, the first motor B01 operates and cooperates with the first planetary gear train to drive the ring gear D04. This results in the initial power convergence of the pedaling force and the power of the first motor B01 at the ring gear D04.

[0047] Furthermore, the second motor B03 works and cooperates with the second planetary gear train to drive the fifth transmission wheel D06 and the output wheel A01 to rotate in sequence, so that the power that first merges at the ring gear D04 and the power of the second motor B03 realize the second power merger at the fifth transmission wheel D06.

[0048] The electric drive system, equipped with a one-way bearing, can operate in at least two modes: pure electric dual-motor mode, pure human-powered mode, and a hybrid mode combining human-powered and dual-motor operation. The first bearing A04 prevents the first motor B01 from rotating the pedal shaft during pure electric dual-motor operation, while the second bearing B05 ensures that pure human-powered riding mode is possible. This achieves both power and speed assistance, simplifying the overall vehicle structure and reducing costs by eliminating a separate gear transmission mechanism.

[0049] Please continue reading Figure 1 and Figure 2 , for more structural details of the electric drive system with one-way bearings. As can be seen from the figure, the stator of the first motor B01 is mounted on the housing C01, and the rotor is mounted on the first motor shaft B02, which is mounted on the housing C01 via bearings. The stator of the second motor B03 is mounted on the housing C01, and the rotor is mounted on the second motor shaft B04, which is mounted on the housing C01 via bearings.

[0050] In an alternative embodiment, the second planetary shaft D07 is mounted on the fifth transmission gear D06, allowing the fifth transmission gear D06 to serve as a planet carrier for the second planetary gear D05. It should be noted that the planet carrier of the second planetary gear train is integrated into the fifth transmission gear D06. In this embodiment, the second planet carrier is effectively configured as a gear.

[0051] Optionally, the first bearing A04 is a one-way needle bearing, which is installed in the hole of the third transmission wheel A03 and is sleeved on the pedal shaft A05. When torque is input from the pedal shaft A05, the transmission wheel A03 is driven to rotate synchronously through the first bearing A04; when torque is input from the third transmission wheel A03, the first bearing A04 is idle, and the pedal shaft A05 will not rotate with the third transmission wheel A03.

[0052] Optionally, the second bearing B05 is a one-way deep groove ball bearing, the outer ring of which is mounted and connected to the housing C01 by an interference fit or key, and the inner ring of which is mounted and connected to the second motor shaft B04 by an interference fit or key. The second motor shaft B04 is restricted by the second bearing B05 to free rotation in only one direction.

[0053] One end of the pedal shaft A05 is mounted on the housing C01 via a bearing, and the other end is mounted on the hole of the second transmission wheel A02 via a bearing. The second transmission wheel A02 is also mounted on the housing C01 via a bearing. The third transmission wheel A03 is mounted on the pedal shaft A05 via a first bearing A04. Both ends of the pedal shaft A05 extend outside the housing C01 and are connected to the mounting crank.

[0054] In an optional embodiment, the axis of the fifth transmission gear D06, the axis of the first sun gear D01 and the axis of the second sun gear D08 are all coaxially arranged. This ensures stability during power transmission and reduces the volume of the entire box C01.

[0055] In an optional embodiment, the second transmission wheel A02 and the fifth transmission wheel D06 may be driven by gears, belts or chains; and / or the third transmission wheel A03 and the ring gear D04 may be driven by gears, belts or chains.

[0056] In this embodiment, the second transmission wheel A02 and the fifth transmission wheel D06 are coupled through gear transmission.

[0057] from Figure 2 It can also be seen that the ring gear D04 is mounted on the housing C01 through a bearing, and the ring gear D04 is provided with an external tooth D042, a first internal tooth D041 and a second internal tooth D043.

[0058] The first inner teeth D041 mesh with the outer teeth of the first planetary gear D03, the second inner teeth D043 mesh with the outer teeth of the second planetary gear D05; and the outer teeth D042 mesh with the outer teeth of the third transmission gear A03, so that the ring gear D04 and the third transmission gear A03 are gear-coupled.

[0059] In an optional embodiment, the output wheel A01 can be designed as a gear, a pulley or a sprocket. When the output wheel A01 is a sprocket, the output wheel A01 can also be used as a common crankset bicycle.

[0060] In an optional embodiment, the second transmission wheel A02 is coaxially arranged with the output wheel A01; the fifth transmission wheel D06 is in transmission cooperation with the second transmission wheel A02, so that when the fifth transmission wheel D06 rotates, the output wheel A01 is driven to rotate via the second transmission wheel A02. This can shorten the power transmission path.

[0061] In an optional embodiment, the second transmission wheel A02 is coaxially arranged with the pedal shaft A05, and the output wheel A01 is fixed on the second transmission wheel A02. In this embodiment, the second transmission wheel A02 is sleeved on the pedal shaft A05.

[0062] In an alternative embodiment, the first motor B01 and the second motor B03 are located on either side of the ring gear D04 along its axis. This arrangement creates a harmonious and symmetrical overall structure, enhancing the product's aesthetics. The two motors are located on either side of the housing C01, facilitating heat dissipation.

[0063] The rotor of the first motor B01 is mounted on the first motor shaft B02. The first sun gear D01 is integrated or mounted on the first motor shaft B02. The first planetary shaft D02 is mounted on the housing C01. The first planetary gear D03 is loosely mounted on the first planetary shaft D02 and meshes with both the first sun gear D01 and the internal teeth D401 of the ring gear D04. When more than one first planetary shaft D02 and first planetary gear D03 are arranged circumferentially, the first sun gear D01, first planetary gear D03, first planetary gear D03, ring gear D04, and housing C01 (i.e., the planetary carrier of the first planetary system) form the first planetary gear train PG1. The first planetary gear train PG1 is a two-degree-of-freedom transmission system, and a fixed-axis gear transmission mechanism can also be used.

[0064] The rotor of second motor B03 is mounted on second motor shaft B04. Second sun gear D08 is integrated or mounted on second motor shaft B04. Second planetary shaft D07 is mounted on fifth transmission gear D06. Second planetary gear D05 is loosely mounted on second planetary shaft D07 and meshes with both second sun gear D08 and the internal teeth D403 of ring gear D04. When more than one second planetary shaft D07 and second planetary gear D05 are arranged circumferentially around fifth transmission gear D06, second sun gear D08, second planetary gear D05, second planetary shaft D07, ring gear D04, and fifth transmission gear D06 (i.e., the planetary carrier of the second planetary system) form another second planetary gear train PG2.

[0065] The second planetary gear system PG2 is a three-degree-of-freedom transmission system. The ring gear D04, the second sun gear D08, and the fifth transmission gear D06 are the three power application points. If any two of these power application points input power according to the set requirements, the other power application point will output power according to the set requirements.

[0066] The main working mode transmission routes of the electric drive system equipped with one-way bearings are as follows:

[0067] 1) Dual-motor pure electric drive

[0068] Transmission path: The power of the first motor B01 is transmitted to the ring gear D04, the fifth transmission wheel D06, the second transmission wheel A02, and the output wheel A01 (output power) through the first planetary gear system PG1, and the power of the second motor B03 is transmitted to the fifth transmission wheel D06 through the second planetary gear system PG2.

[0069] Specifically, the ring gear D04 drives the third drive wheel A03 to idle (due to the first bearing A04, power cannot be transmitted to the pedal shaft A05). The output wheel A01 rotates in the same direction as the first motor B01, while the second motor B03 rotates in the opposite direction. Due to the one-way second bearing B05, the second motor B03 can only rotate freely in the set direction.

[0070] 2) Purely human-driven

[0071] The pedaling power is transmitted to the ring gear D04, the fifth transmission wheel D06, the second transmission wheel A02, and the output wheel A01 (output power) in sequence. At this time, the first motor shaft B02 idles synchronously with the first sun gear D01 under the action of the first planetary gear system PG1.

[0072] Specifically, the second motor shaft B04, driven by the second planetary gear train PG2, rotates synchronously with the second sun gear D08. At this point, the motor shaft's rotational direction is opposite to the set free rotational direction. The second one-way bearing B05 locks the second motor shaft B04 against rotation within the housing C01. This creates a two-degree-of-freedom transmission system. Power is input through the ring gear D04 and output from the fifth transmission gear D06 to the output gear A01, achieving power output from the electric drive system. The output gear A01's rotational direction matches the pedaling power.

[0073] 3) Human power + dual motor hybrid drive

[0074] The pedaling power is sequentially transmitted to the ring gear D04, the fifth transmission wheel D06, the second transmission wheel A02, and the output wheel A01 (output power). The first motor B01 can independently transmit power to the ring gear D04, and the second motor B03 can independently transmit power to the fifth transmission wheel D06.

[0075] Specifically, the pedaling input power and the power of the first motor B01 combine for a first time on the ring gear D04. The combined power on the ring gear D04 and the power of the second motor B03 combine for a second time on the fifth transmission gear D06. This second combined power is then transmitted via the fifth transmission gear D06 to the second transmission gear A02, and then to the output gear A01, achieving power output. The rotation direction of the output gear A01 and the rotation direction of the first motor B01 are the same as the pedaling power direction, while the rotation direction of the second motor B03 is opposite to that of the first motor B01.

[0076] In summary, the embodiments of the present invention provide an electric drive system configured with a one-way bearing, which has at least the following advantages:

[0077] Existing electric-assisted bicycles have a single power coupling mechanism: the motor torque is superimposed on the pedaling torque, and the speed automatically matches the pedaling frequency in real time. The speed of the entire vehicle is determined by the pedaling frequency. This solution uses dual motors and three power input points. The structure incorporates power confluence at two locations, achieving both power assistance and speed regulation. The vehicle's speed is determined by the coupling of the pedaling frequency and the speed of the speed-assisting motor.

[0078] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. An electric drive system equipped with a one-way bearing, characterized in that: include: Case (C01), first planetary gear train, second planetary gear train, first motor (B01), first motor shaft (B02), second motor (B03), second motor shaft (B04), fifth transmission wheel (D06), output wheel (A01), pedal shaft (A05); The first planetary gear train includes a ring gear (D04), a first planet carrier, a first sun gear (D01), a first planet gear (D03), and a first planet shaft (D02) that cooperate with each other; the first planet carrier is integrated on the housing (C01), and the first motor (B01) is connected to the first sun gear (D01) via a first motor shaft (B02) to drive the first sun gear (D01) to rotate; The second planetary gear train includes a ring gear (D04), a second sun gear (D08), a second planet gear (D05) and a second planet shaft (D07) that cooperate with each other; the second motor (B03) is connected to the second sun gear (D08) via the second motor shaft (B04) to drive the second sun gear (D08) to rotate; The fifth transmission wheel (D06) is rotatably arranged in the housing (C01) via a third bearing (11); at least one of the second planetary shafts (D07) is connected to the fifth transmission wheel (D06) so as to drive the fifth transmission wheel (D06) to rotate when the second planetary wheel (D05) revolves; The output wheel (A01) is in transmission cooperation with the fifth transmission wheel (D06) through the second transmission wheel (A02), so that the fifth transmission wheel (D06) can drive the output wheel (A01) to rotate; A third transmission wheel (A03) is provided on the pedal shaft (A05), and the third transmission wheel (A03) is in transmission cooperation with the ring gear (D04), so that the ring gear (D04) is driven to rotate by the rotation of the pedal shaft (A05); The third transmission wheel (A03) is sleeved on the pedal shaft (A05) through a first bearing (A04); the first bearing (A04) is a one-way bearing, so that when torque is input from the pedal shaft (A05), the third transmission wheel (A03) is driven to rotate synchronously through the first bearing (A04); when torque is input from the third transmission wheel (A03), the first bearing (A04) rotates idly, the torque is not transmitted to the pedal shaft (A05), and the pedal shaft (A05) does not rotate along with the third transmission wheel (A03); The second motor (B03) has a second motor shaft (B04), and the second sun gear (D08) is fixed on the second motor shaft (B04); the second motor shaft (B04) is arranged on the housing (C01) through a second bearing (B05); the second bearing (B05) is a one-way bearing, so that the second motor shaft (B04) is limited to free rotation only in a preset direction.

2. The electric drive system configured with a one-way bearing according to claim 1, characterized in that: The second bearing (B05) is a one-way deep groove ball bearing.

3. The electric drive system configured with a one-way bearing according to claim 1, characterized in that: The first bearing (A04) is a one-way needle roller bearing.

4. The electric drive system configured with a one-way bearing according to claim 1, characterized in that: The axis center line of the fifth transmission wheel (D06), the axis center line of the first sun wheel (D01) and the axis center line of the second sun wheel (D08) are all coaxially arranged.

5. The electric drive system configured with a one-way bearing according to claim 1, characterized in that: The second transmission wheel (A02) and the fifth transmission wheel (D06) are driven by gears, belts or chains; And / or the third transmission wheel (A03) and the ring gear (D04) adopt gear transmission, belt transmission or chain transmission.

6. The electric drive system with a one-way bearing according to claim 1, characterized in that: The output wheel (A01) is designed as a gear, a pulley or a sprocket.

7. The electric drive system configured with a one-way bearing according to claim 1, characterized in that: The second transmission wheel (A02) is coaxially arranged with the output wheel (A01); the fifth transmission wheel (D06) is in transmission cooperation with the second transmission wheel (A02), so that when the fifth transmission wheel (D06) rotates, the output wheel (A01) is driven to rotate through the second transmission wheel (A02).

8. The electric drive system configured with a one-way bearing according to claim 7, characterized in that: The second transmission wheel (A02) is coaxially arranged with the pedal shaft (A05), and the output wheel (A01) is fixed on the second transmission wheel (A02).

9. The electric drive system configured with a one-way bearing according to claim 1, characterized in that: Along the axial direction of the ring gear (D04), the first motor (B01) and the second motor (B03) are respectively located on both sides of the ring gear (D04).

10. The electric drive system equipped with a one-way bearing according to claim 1, characterized in that: The second planetary shaft (D07) is arranged on the fifth transmission wheel (D06), so that the fifth transmission wheel (D06) can serve as a planet carrier of the second planetary wheel (D05).

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