Vector dual motor, control method and adjustment method

Abstract

The application belongs to the technical field of electric machines, and provides a vector double motor, a control method and an adjustment method, which comprise: a left vector motor assembly, which is drivingly connected with a left tooth shaft module; a right vector motor assembly, which is drivingly connected with a right tooth shaft module; and a locking mechanism assembly, which is used for combining or separating the left tooth gear module and the right tooth gear module. The vector double motor combines the left tooth shaft module and the right tooth shaft module through the locking mechanism assembly, so that the double motor can transmit torque to one side. When passing through a shell crater, the torque of the left and right vector motors is superposed through the locking mechanism assembly, so that the side with a large adhesion rate can easily pass through. The application sets a triangular area formed by an input shaft, a transition shaft and an output shaft, so that the output shaft is in front and the double motor assembly is at the rear. The vector double motor controller assembly is adjusted and arranged based on the assembly inclination angle, so that the arrangement gravity center of the whole vehicle seat is lower, and the comfort of the passengers is improved.

Description

Technical Field

[0001] This invention belongs to the field of motor technology, and specifically relates to a vector dual motor, a control method, and an adjustment method. Background Technology

[0002] Currently, there are two types of vector dual-motor structures in the industry:

[0003] (1) The structure of the dual vector motor is similar to that of the coaxial arrangement. Although it is small in size and has a large power density, it is not suitable for hardcore off-road vehicles. The power-type vector dual motors mentioned above do not have a locking mechanism and are commonly found in coaxial dual motor architectures.

[0004] (2) The structure of the dual vector motor is similar to that of the parallel axis arrangement, but the structure is large and the weight is not advantageous. That is, the power density of the electric drive system is low. The axial dimension is large and the vertical dimension is high in the whole vehicle layout, resulting in the seats being too high and the ride comfort is insufficient. Summary of the Invention

[0005] To address at least one of the problems in the background art, the present invention proposes a vector dual motor, a control method, and an adjustment method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A vector dual motor, comprising:

[0008] The left vector motor assembly is connected to the left gear shaft module for transmission.

[0009] The right vector motor assembly is connected to the right gear shaft module.

[0010] The locking mechanism assembly is used to: engage the left gear module and the right gear module to allow the left vector motor assembly or the right vector motor assembly to transmit torque to both sides simultaneously; or disengage the left gear module and the right gear module to allow the left vector motor assembly and the right vector motor assembly to transmit torque to the corresponding single side.

[0011] The left vector motor assembly and the right vector motor assembly are arranged symmetrically.

[0012] Preferably, the left vector motor assembly and the left gear shaft module are integrated into the left housing;

[0013] The right vector motor assembly and the right gear shaft module are integrated into the right housing;

[0014] The left and right shells are symmetrically arranged and connected by an intermediate support shell;

[0015] The locking mechanism assembly is integrated inside the intermediate support housing.

[0016] Preferably, the intermediate support housing is bolted to a controller assembly, which is electrically connected to the left vector motor assembly and the right vector motor assembly.

[0017] Preferably, the left gear shaft module and the right gear shaft module have a symmetrical structure, each including an input shaft, a transition shaft and an output shaft;

[0018] The input shaft is the motor shaft of the vector motor, which transmits power to the transition shaft through gear transmission;

[0019] The transition shaft transmits power to the output shaft via gear transmission;

[0020] The axes of the input shaft, transition shaft, and output shaft are all coplanar, forming a triangular region.

[0021] Preferably, active oil pumps are also installed on the surfaces of the left and right housings, with one active oil pump on one side used for oil cooling of the left vector motor assembly and the left gear module, and the other active oil pump used for oil cooling of the right vector motor assembly and the right gear module.

[0022] Preferably, heat exchangers are also installed on the surfaces of the left and right housings, with one heat exchanger used for heat exchange between the left vector motor assembly and the left gear module, and the other heat exchanger used for heat exchange between the right vector motor assembly and the right gear module.

[0023] Preferably, the locking mechanism assembly includes a sliding sleeve, a motor controller, a rocker arm, a shift fork, a locking motor, a screw, a fixed support, and a locking sleeve;

[0024] The motor controller is electrically connected to the locking motor;

[0025] The locking motor is used to drive the screw to rotate;

[0026] The sliding sleeve is connected to the screw drive;

[0027] One end of the swing arm is rotatably connected to the sliding sleeve, and the other end is fixedly connected to the shift fork;

[0028] The middle section of the swing arm is rotatably connected to the fixed support, and the fixed support is stationary relative to the swing arm;

[0029] The locking sleeve cooperates with the shift fork, and the left vector motor assembly and the right vector motor assembly are engaged and disengaged as the shift fork swings.

[0030] A vector dual-motor control method, used for the aforementioned vector dual-motor, is characterized by comprising the following steps:

[0031] By combining the locking mechanism assembly with the left gear module and the right gear module, the left vector motor assembly or the right vector motor assembly can transmit torque to both sides simultaneously;

[0032] Alternatively, by disengaging the left and right gear modules through the locking mechanism assembly, the left vector motor assembly can transmit torque to one side, while the right vector motor transmits torque to the other side.

[0033] Furthermore, to allow either the left or right vector motor assembly to simultaneously transmit power to both sides, the following steps are included:

[0034] When the required torque on the left side is greater than the preset value, the left vector motor assembly transmits torque to the left, and the right vector motor assembly transmits torque to both the left and right sides simultaneously.

[0035] When the required torque on the right side is greater than the preset value, the left vector motor assembly transmits torque to both the left and right sides simultaneously, while the right vector motor assembly transmits torque to the right side.

[0036] The preset values ​​are the maximum torque of the left vector motor assembly and the right vector motor assembly, respectively.

[0037] An adjustment method for a vector dual motor as described above, characterized by comprising the following steps:

[0038] Adjusting the distance and angle between each pair of the input shaft, transition shaft, and output shaft changes the length and height of the vector dual motor.

[0039] The beneficial effects of this invention are:

[0040] 1. The vector dual motor of the present invention combines the left gear shaft module and the right gear shaft module through the locking mechanism assembly, so that the dual motor can transmit torque to one side. When passing through the shell crater, the torque of the left and right vector motors is superimposed through the locking mechanism assembly, so that the side with the greater adhesion rate can pass easily.

[0041] 2. By setting up a triangular area composed of the input shaft, transition shaft and output shaft, the present invention places the output shaft in front and the dual motor assembly in the rear. The vector dual motor controller assembly is arranged based on the assembly tilt angle, which makes the center of gravity of the vehicle seat arrangement lower and improves the comfort of the occupants.

[0042] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 A front structural schematic diagram of a vector dual motor according to the present invention is shown;

[0045] Figure 2 A schematic diagram of the rear structure of a vector dual motor according to the present invention is shown;

[0046] Figure 3 A schematic diagram of the triangular region of a vector dual motor according to the present invention is shown;

[0047] Figure 4 The diagram shows the structural schematics of the left and right gear shaft modules of the present invention;

[0048] Figure 5 A schematic diagram of the locking mechanism assembly of the present invention is shown.

[0049] In the diagram: 1. Left vector motor assembly; 2. Controller assembly; 3. Right vector motor assembly; 4. Locking mechanism assembly; 5. Left housing; 6. Right housing; 7. Middle support housing; 8. Active oil pump; 9. Heat exchanger; 10. Triangular zone; 1001. Input shaft; 1002. Transition shaft; 1003. Output shaft; 11. Sliding sleeve; 12. Motor controller; 13. Rocker arm; 14. Shift fork; 15. Locking motor; 16. Screw; 17. Fixed support; 18. Locking sleeve. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] A type of vector dual motor, such as Figure 1As shown, the assembly includes a left vector motor assembly 1, a controller assembly 2, a right vector motor assembly 3, a locking mechanism assembly 4, a left housing 5, a right housing 6, and a middle support housing 7. The left vector motor assembly 1 is driven by a left gear shaft module, and the right vector motor assembly 3 is driven by a right gear shaft module. The locking mechanism assembly 4 can engage with the left and right gear modules to allow either the left vector motor assembly 1 or the right vector motor assembly 3 to transmit torque to both sides simultaneously; or, it can disengage the left and right gear modules to allow the left vector motor assembly 1 and the right vector motor assembly 3 to transmit torque to their respective single sides. The left vector motor assembly 1 and the right vector motor assembly 3 are symmetrically arranged.

[0052] In addition, the left vector motor assembly 1 and the left gear shaft module are integrated in the left housing 5, and the right vector motor assembly 3 and the right gear shaft module are integrated in the right housing 6; the left housing 5 and the right housing 6 are symmetrically arranged and connected by the intermediate support housing 7; the locking mechanism assembly 4 is integrated inside the intermediate support housing 7.

[0053] In addition, the intermediate support housing 7 is bolted to the controller assembly 2, which is electrically connected to the left vector motor assembly 1 and the right vector motor assembly 3.

[0054] It should be noted that, in Figure 1 In the structure, the vector dual motors adopt a symmetrical design. The left housing 5, right housing 6, and intermediate support housing 7 are generally made of castings. The locking mechanism assembly 4 links the gear modules on both sides, enabling power transmission between them. The controller assembly 2's main function is to drive the permanent magnet synchronous motor to operate efficiently and stably by precisely controlling parameters such as current and voltage. It optimizes motor performance, improves response speed and stability, and resists external interference, thus meeting the needs of different application scenarios.

[0055] Furthermore, such as Figure 2 As shown, active oil pumps 8 are respectively installed on the surfaces of the left housing 5 and the right housing 6. One active oil pump 8 is used for oil cooling of the left vector motor assembly 1 and the left gear module, and the other active oil pump 8 is used for oil cooling of the right vector motor assembly 3 and the right gear module. In addition, heat exchangers 9 are also installed on the surfaces of the left housing 5 and the right housing 6. One heat exchanger 9 is used for heat exchange of the left vector motor assembly 1 and the left gear module, and the other heat exchanger 9 is used for heat exchange of the right vector motor assembly 3 and the right gear module.

[0056] It should be noted that, from Figure 2As can be seen, two active oil pumps 8 and two heat exchangers 9 are installed. The active oil pumps 8 and heat exchangers 9 are installed at the top and bottom positions on the back of the left housing 5, while the active oil pumps 8 and heat exchangers 9 are symmetrically installed in the same positions on the right housing 6. The active oil pumps 8 and heat exchangers 9 enable the dual-vector motor to dissipate heat quickly, ensuring the stability of motor operation.

[0057] Furthermore, such as Figure 3 As shown, the triangular region 10 of the vector dual motor is formed by the coplanar axes of the input shaft 1001, the transition shaft 1002, and the output shaft 1003. Within this triangular region 10, the distance between any two axes can be adjusted to accommodate different seat arrangements and spatial variations within the vehicle's coordinate system.

[0058] Furthermore, such as Figure 4 As shown, the left and right gear shaft modules have a symmetrical structure, each including an input shaft 1001, a transition shaft 1002, and an output shaft 1003. The input shaft 1001 is the motor shaft of the vector motor, transmitting power to the transition shaft 1002 via gear transmission; the transition shaft 1002 transmits power to the output shaft 1003 via gear transmission; the axes of the input shaft 1001, transition shaft 1002, and output shaft 1003 are all coplanar, forming a triangular region 10.

[0059] It should be noted that a locking sleeve 18 is installed between the symmetrical output shafts 1003. This structure belongs to the locking mechanism assembly 4, which can connect the output shafts 1003 on the left and right sides, so that power can be transmitted between the two output shafts 1003.

[0060] It should be noted that in the triangular area 10, the output shaft 1003 is in front and the dual motor assembly is in the back. The controller assembly 2 of the vector dual motor is arranged based on the assembly tilt angle adjustment, which makes the center of gravity of the vehicle seat arrangement lower and improves the comfort of the occupants.

[0061] It should be further explained that the main shaft of the vector motor can be used as the input shaft 1001, or it can be connected to the input shaft 1001 via a coupling or the like.

[0062] Furthermore, the locking mechanism assembly 4 can be implemented in various ways; now, in combination with... Figure 5 One embodiment will be described. For example... Figure 5 As shown, the locking mechanism assembly 4 includes a sliding sleeve 11, a motor controller 12, a rocker arm 13, a shift fork 14, a locking motor 15, a screw 16, and a fixed support 17.

[0063] The motor controller 12 is electrically connected to the locking motor 15 and can send start or stop commands to the locking motor 15. In operation, the locking motor 15 drives the screw 16 to rotate via mechanical transmission. The screw 16 is then connected to the sliding sleeve 11 via a lead screw drive, converting the rotation of the screw 16 into linear motion of the sliding sleeve 11. One end of the rocker arm 13 is rotatably connected to the sliding sleeve 11, and the other end is fixedly connected to the shift fork 14. When the sliding sleeve 11 moves left or right, the rocker arm 13 swings accordingly, and the shift fork 14 swings synchronously with the rocker arm 13, thereby driving the locking sleeve 18 at the bottom to transmit power between the left and right motors.

[0064] In addition, a fixed support 17 is rotatably connected to the middle section of the swing arm 13, and the fixed support 17 is stationary relative to the swing arm 13.

[0065] It should be noted that, in Figure 5 In the structure, the locking sleeve 18 has three positions. When the shift fork 14 is moved to the leftmost position (perpendicular to the paper), the power of the right motor is superimposed on the left gear and transmitted to the left wheel for output. When the shift fork 14 is moved to the middle position (perpendicular to the paper), the power of the left motor and the power of the right motor are decoupled and output from both sides respectively. When the shift fork 14 is moved to the rightmost position (perpendicular to the paper), the power of the left motor is superimposed on the right gear and transmitted to the right wheel for output.

[0066] The purpose of the dual-vector motor of this invention is to control the power output of the motor according to road conditions. The following is based on... Figures 1-5 The structure is explained to describe its control method.

[0067] A vector dual-motor control method, used for Figures 1-5 A vector dual motor includes the following steps:

[0068] By using the locking mechanism assembly 4 in conjunction with the left gear module and the right gear module, the left vector motor assembly 1 or the right vector motor assembly 3 can transmit torque to both sides simultaneously; or, by using the locking mechanism assembly 4 to disengage the left gear module and the right gear module, the left vector motor assembly 1 can transmit torque to one side, while the right vector motor can transmit torque to the other side.

[0069] It should be noted that when the locking mechanism assembly 4 is disengaged, the two motors can independently control the direction and torque of the wheels to adapt to different road conditions; while when the locking mechanism assembly 4 is engaged, the torque of one motor is transmitted through the locking sleeve 18 to the output gear at the other end with a higher adhesion rate to achieve traction.

[0070] Taking a specific scenario as an example, when a car travels over a road with potholes, if the right wheel encounters a "shell crater" and becomes suspended in the air or has a small contact area with the ground, resulting in insufficient traction, the torque applied by the left vector motor assembly 1 to the left wheel may not be enough to help the car overcome the pothole. In this case, the required torque on the left side is greater than a preset value. Therefore, the locking mechanism assembly 4 can be used in conjunction with the left vector motor assembly 1 and the right vector motor assembly 3 to allow the right vector motor assembly 3 to simultaneously transmit torque to both the left and right sides. This ensures that the torques of both the left and right vector motor assemblies can act on the left wheel simultaneously, giving the car sufficient torque to overcome the pothole.

[0071] Similarly, when the left wheel has insufficient grip, the right wheel requires more torque than the preset value. The left vector motor assembly 1 transmits torque to both the left and right sides simultaneously, while the right vector motor assembly 3 transmits torque to the right side.

[0072] It should be noted that the preset values ​​are the maximum torque of the left vector motor assembly 1 and the right vector motor assembly 3 respectively.

[0073] An adjustment method for the triangular region 10 of a vector dual motor as described above includes the following steps:

[0074] Adjusting the distance and angle between each pair of input shaft 1001, transition shaft 1002 and output shaft 1003 changes the length and height of the vector dual motor.

[0075] It should be noted that the size of the triangular area 10 determines the size of the entire vector dual motor, which is crucial for the utilization of interior space. Therefore, a reasonable triangular area 10 needs to be adjusted according to the interior space.

[0076] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vector dual motor, characterized by, The application relates to a left vector motor assembly (1) which is drivingly connected with a left gear shaft module; a right vector motor assembly (3) which is drivingly connected with a right gear shaft module; and a locking mechanism assembly (4) which is used for: combining the left gear shaft module and the right gear shaft module to simultaneously transmit torque to both sides by the left vector motor assembly (1) or the right vector motor assembly (3); or disconnecting the left gear shaft module and the right gear shaft module to transmit torque to corresponding single sides by the left vector motor assembly (1) and the right vector motor assembly (3). The left vector motor assembly (1) and the right vector motor assembly (3) are symmetrically arranged. The locking mechanism assembly (4) comprises a sliding sleeve (11), a motor controller (12), a swing rod (13), a shift fork (14), a locking motor (15), a screw rod (16), a fixed support (17) and a locking sleeve (18). The motor controller (12) is electrically connected with the locking motor (15). The locking motor (15) is used for driving the screw rod (16) to rotate. The sliding sleeve (11) is drivingly connected with the screw rod (16). One end of the swing rod (13) is rotatably connected with the sliding sleeve (11), and the other end is fixedly connected with the shift fork (14). The middle segment of the swing rod (13) is rotatably connected with the fixed support (17), and the fixed support (17) is static relative to the swing rod (13). The locking sleeve (18) is matched with the shift fork (14) and is combined with and disconnected from the left vector motor assembly (1) and the right vector motor assembly (3) by swinging of the shift fork (14). The left vector motor assembly (1) and the left gear shaft module are integrated in a left shell (5). The right vector motor assembly (3) and the right gear shaft module are integrated in a right shell (6). The left shell (5) and the right shell (6) are symmetrically arranged and are connected through an intermediate support shell (7).

2. A vector double machine according to claim 1, characterized in that, The locking mechanism assembly (4) is integrated in the intermediate support shell (7). The intermediate support shell (7) is connected with a controller assembly (2) through bolts, and the controller assembly (2) is electrically connected with the left vector motor assembly (1) and the right vector motor assembly (3). The left gear shaft module and the right gear shaft module are symmetrical structures and each comprises an input shaft (1001), a transition shaft (1002) and an output shaft (1003). The input shaft (1001) is a motor shaft of a vector motor and transmits power to the transition shaft (1002) through gear transmission.

3. A vector double machine according to claim 2, characterized in that The transition shaft (1002) transmits power to the output shaft (1003) through gear transmission.

4. A vector double machine according to claim 2, characterized in that, The axes of the input shaft (1001), the transition shaft (1002) and the output shaft (1003) are coplanar, and form a triangular region (10). The left shell (5) and the right shell (6) are further respectively provided with driving oil pumps (8), one side of which is used for oil cooling of the left vector motor assembly (1) and the left gear shaft module, and the other side of which is used for oil cooling of the right vector motor assembly (3) and the right gear shaft module. ​ ​ 5. A vector double machine according to claim 2, characterized in that, ​ 6. A vector double machine according to claim 2, characterized in that, The left shell (5) and the right shell (6) are also respectively provided with heat exchangers (9), one side of which is used for heat exchange of the left vector motor assembly (1) and the left gear module, and the other side of which is used for heat exchange of the right vector motor assembly (3) and the right gear module.

7. A vector dual motor control method for the vector dual motor of any one of claims 1-6, characterized by, The method comprises the following steps: The left vector motor assembly (1) or the right vector motor assembly (3) simultaneously transmits torque to both sides through the locking mechanism assembly (4) combined with the left gear module and the right gear module. Or, the left vector motor assembly (1) transmits torque to one side, and the right vector motor assembly (3) transmits torque to the other side through the locking mechanism assembly (4) disengaged from the left gear module and the right gear module.

8. The vector dual-motor control method of claim 7, wherein, The left vector motor assembly (1) or the right vector motor assembly (3) simultaneously transmits power to both sides, comprising the following steps: When the left side demand torque is greater than a preset value, the left vector motor assembly (1) transmits torque to the left side, and the right vector motor assembly (3) transmits torque to the left side and the right side at the same time; When the right side demand torque is greater than a preset value, the left vector motor assembly (1) transmits torque to the left side and the right side at the same time, and the right vector motor assembly (3) transmits torque to the right side; The preset value is the maximum torque of the left vector motor assembly (1) and the right vector motor assembly (3) respectively.

9. An adjustment method for the vector double electric machine of claim 4, characterized in that, The method comprises the following steps: Adjust the distance and angle between the input shaft (1001), the transition shaft (1002) and the output shaft (1003) to change the length and height of the vector dual motor.

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