Power simulation teaching demonstration device for hybrid electric vehicle

Abstract

The invention discloses a power simulation teaching demonstration device for a hybrid electric vehicle, and relates to the field of teaching demonstration equipment, and the device comprises a supporting unit, the supporting unit comprises a bottom supporting plate, the top of the bottom supporting plate is symmetrically and fixedly provided with supporting frames, and the bottom supporting plate is fixedly provided with a side supporting frame in the width direction. An arc-shaped groove is formed in one side of the side supporting frame; according to the power simulation teaching demonstration device for the hybrid electric vehicle, power transmission of the hybrid electric vehicle is simulated through the engine output simulation unit, the motor output simulation unit and the power recovery unit, and the planetary gear unit is used for performing power distribution on power output by the engine output simulation unit and the motor output simulation unit. Power output is coordinated, and the transmission unit drives tires to rotate through the first half shaft and the second half shaft.

Description

Technical Field

[0001] The present invention relates to the technology of teaching demonstration equipment, and particularly to a power simulation teaching demonstration device for hybrid electric vehicles. Background Art

[0002] A hybrid electric vehicle (HEV) is an innovative type of vehicle that ingeniously combines a traditional fuel engine and an electric motor. Through the coordinated operation of the two power sources, it achieves a significant improvement in fuel economy and an effective reduction in exhaust emissions, while maintaining the vehicle's power performance. At low speeds or idling, the electric motor can independently drive the vehicle, effectively avoiding the operation of the fuel engine under inefficient conditions, thus saving energy. When accelerating or climbing a slope, the fuel engine and the electric motor work together to output powerful power, enhancing the vehicle's acceleration performance. In addition, when decelerating or braking, the electric motor can switch to the generator mode to recover and store kinetic energy, further improving the energy utilization efficiency. All of this benefits from the intelligent control of the electronic control unit (ECU), which can real-time monitor the driving requirements and dynamically adjust the power distribution between the fuel engine and the electric motor to ensure that the vehicle is always in the best working state.

[0003] When the existing power simulation teaching demonstration device for hybrid electric vehicles is in use, it can only simulate the switching between the engine power and the electric motor power, but cannot simulate the working state of the planetary gear mechanism when the wheels are running by inertia after the engine and the electric motor are turned off, thus failing to achieve the teaching purpose. Summary of the Invention

[0004] The purpose of the present invention is to provide a power simulation teaching demonstration device for hybrid electric vehicles to solve the above deficiencies in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A power simulation teaching demonstration device for hybrid electric vehicles, including a support unit, the support unit includes a bottom support plate, symmetrically fixed supports are installed on the top of the bottom support plate, a side support frame is fixedly installed in the width direction of the bottom support plate, and an arc-shaped groove is provided on one side of the side support frame. The device further includes:

[0006] An engine output simulation unit, which is arranged on the top of one of the supports;

[0007] A motor output simulation unit, which is arranged on the top of the other support;

[0008] A power recovery unit, which is arranged opposite to the engine output simulation unit and on one side of the motor output simulation unit;

[0009] A planetary gear unit, which is arranged between the engine output simulation unit and the power recovery unit;

[0010] A transmission unit is arranged in the middle of the support frame, the transmission unit is connected to the planetary gear unit through a transmission gear unit, and the transmission unit includes a first half shaft and a second half shaft that are symmetrically arranged, and the first half shaft and the second half shaft are respectively connected to the two support frames for rotation;

[0011] Tires are fixedly mounted on ends of the first half-axle and the second half-axle that are away from each other;

[0012] The brake unit is arranged on the inner side of the side support frame and is located below the tire. The brake unit includes a brake cylinder symmetrically arranged on the inner side of the side support frame, a first power member driving the brake cylinder to move, and a second power member driving the brake cylinder to rotate. One end of the brake cylinder is slidably connected to an arc-shaped groove provided in the side support frame through a limiting shaft, and a fixed gear is fixedly installed on the other end.

[0013] Furthermore, the first power member includes:

[0014] A translation driving member, which is symmetrically arranged on the top of one side of the side support frame, and one end of which is rotatably connected to the side support frame;

[0015] A first transmission plate is rotatably mounted on the other end of one of the translational driving members, and a rotating shaft is rotatably mounted on the other end of the first transmission plate. Both ends of the rotating shaft are fixedly connected to the side support frame. A second transmission plate is rotatably mounted on one side of the first transmission plate, and one side of the first transmission plate is rotatably connected to a fixed gear.

[0016] A connecting plate is rotatably mounted on the other end of another translational driving member, and a driving shaft is rotatably mounted on the other end of the connecting plate. The driving shaft is rotatably connected to the side support frame, and a third transmission plate is rotatably mounted on one side of the connecting plate. The other end of the third transmission plate is rotatably connected to the other end of the second transmission plate, one side of the third transmission plate is rotatably connected to a fixed gear, and one side of the connecting plate is rotatably connected to the fixed gear.

[0017] Furthermore, the second power member comprises:

[0018] A power source is fixedly mounted on one side of the side support frame, and an output end of the power source is fixedly connected to one end of the drive shaft through a coupling;

[0019] A driving gear, which is fixedly mounted on the outside of the driving shaft;

[0020] A transmission gear is rotatably mounted on one side of the connecting plate and is located between the fixed gear and the driving gear. The outer sides of the transmission gear are respectively meshed and connected with the fixed gear and the driving gear.

[0021] The intermediate gears are rotatably mounted on one side of the third transmission plate in a linear array, and two adjacent intermediate gears are meshed in sequence. The intermediate gear at the end is meshed and connected with the fixed gear, and the axis of the intermediate gear away from the driving gear coincides with the axis of the rotational connection between the third transmission plate and the second transmission plate.

[0022] Further, the engine output simulation unit includes:

[0023] A driving source fixedly mounted on the top of one of the support frames;

[0024] An output shaft fixedly mounted on the output end of the driving source through a coupling;

[0025] A spline shaft fixedly mounted on the other end of the output shaft;

[0026] The power recovery unit includes:

[0027] A generator fixedly mounted on the top of the other support frame, and the axis of the output end of the generator coincides with the axis of the output end of the driving source;

[0028] A transmission shaft fixedly mounted on the output end of the generator through a coupling;

[0029] The motor output simulation unit includes:

[0030] A simulation motor fixedly mounted on the top of the support frame, and the simulation motor is located on one side of the generator;

[0031] A power shaft fixedly mounted on the output end of the simulation motor through a coupling;

[0032] A motor gear fixedly mounted on the other end of the power shaft.

[0033] Further, the transmission gear unit includes:

[0034] A small gear rotatably mounted on one side of the support frame, and the small gear is located below the power shaft;

[0035] A large gear fixedly mounted on the other side of the small gear, and the large gear is meshed and connected with the motor gear;

[0036] A driven gear fixedly mounted on the outside of the first half shaft, and the driven gear is meshed and connected with the small gear.

[0037] Further, the planetary gear unit includes:

[0038] A planet carrier fixedly mounted on one end of the spline shaft;

[0039] Planet gears rotatably mounted on one side of the planet carrier in a circumferential array;

[0040] The sun gear is fixedly installed at the other end of the transmission shaft. The sun gear is located among a number of planet gears, and the outer side of the sun gear is meshed and connected with a number of planet gears.

[0041] The outer gear ring is sleeved outside a number of planet gears. The inner side of the outer gear ring is meshed and connected with a number of planet gears, and the outer side of the outer gear ring is meshed and connected with the outer side of the large gear.

[0042] Further, the transmission unit further includes:

[0043] The first bevel gear is fixedly installed at one end where the first half shaft and the second half shaft are close to each other respectively.

[0044] The bracket is symmetrically fixedly installed on one side of the driven gear.

[0045] The connecting shaft is rotatably installed on one side of the bracket respectively. The axis of the connecting shaft is perpendicular to the axis of the first half shaft.

[0046] The second bevel gear is fixedly installed at the other end of the connecting shaft respectively. The second bevel gear is meshed and connected with the first bevel gear.

[0047] Further, a storage battery is fixedly installed on the top of the bottom support plate. One side of the storage battery is electrically connected with a control box. The control box is electrically connected with a display. The control box is respectively electrically connected with a drive source, a simulation motor, a generator and a power source.

[0048] Compared with the prior art, a power simulation teaching demonstration device for a hybrid vehicle provided by the present invention simulates the power transmission of a hybrid vehicle through an engine output simulation unit, a motor output simulation unit and a power recovery unit. The planetary gear unit is used for power distribution of the power output by the engine output simulation unit and the motor output simulation unit, coordinates the power output. The transmission unit drives the tire to rotate through the first half shaft and the second half shaft to simulate vehicle driving. The braking unit applies a braking force to the tire through the translation and rotation of the brake cylinder to simulate the braking process. The movement of the brake cylinder is controlled by the first power component, and the rotation is driven by the second power component. The fixed gear is used for transmitting the braking torque, and the second power component drives the brake cylinder to frictionally drive the tire to rotate to simulate tire rotation charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0050] Figure 1 It is the first schematic diagram of the overall structure provided by the embodiment of the present invention;

[0051] Figure 2 The second schematic diagram of the overall structure provided by the embodiment of the present invention;

[0052] Figure 3 The first schematic diagram of the partial structure provided by the embodiment of the present invention;

[0053] Figure 4 The second schematic diagram of the partial structure provided by the embodiment of the present invention;

[0054] Figure 5 The third schematic diagram of the partial structure provided by the embodiment of the present invention;

[0055] Figure 6 The fourth schematic diagram of the partial structure provided by the embodiment of the present invention.

[0056] Explanation of reference numerals:

[0057] 1. Support unit; 11. Bottom support plate; 12. Support frame; 13. Side support frame; 2. Engine output simulation unit; 21. Drive source; 22. Output shaft; 23. Spline shaft; 3. Motor output simulation unit; 31. Simulation motor; 32. Power shaft; 33. Motor gear; 4. Power recovery unit; 41. Generator; 42. Transmission shaft; 5. Planetary gear unit; 51. Outer gear ring; 52. Planet gear; 53. Sun gear; 54. Planet carrier; 6. Transmission unit; 61. First half shaft; 62. Second half shaft; 63. Bracket; 64. First bevel gear; 65. Second bevel gear; 66. Connecting shaft; 7. Tire; 8. Braking unit; 81. Translational driving member; 82. First transmission plate; 83. Rotating shaft; 84. Braking cylinder; 85. Fixed gear; 86. Connecting plate; 87. Intermediate gear; 88. Second transmission plate; 89. Transmission gear; 810. Driving gear; 811. Driving shaft; 812. Power source; 813. Third transmission plate; 9. Transmission gear unit; 91. Large gear; 92. Small gear; 93. Driven gear; 100. Display; 101. Control box; 102. Battery. Detailed implementation manners

[0058] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0059] Embodiment 1:

[0060] Please refer to Figures 1-6 , a power simulation teaching demonstration device for a hybrid vehicle, including a support unit 1, the support unit 1 includes a bottom support plate 11, support frames 12 are symmetrically and fixedly installed on the top of the bottom support plate 11, a side support frame 13 is fixedly installed in the width direction of the bottom support plate 11, an arc-shaped groove is formed on one side of the side support frame 13, and further includes:

[0061] An engine output simulation unit 2, which is arranged on the top of one of the support frames 12;

[0062] A motor output simulation unit 3, which is arranged on the top of the other support frame 12;

[0063] A power recovery unit 4, which is arranged opposite to the engine output simulation unit 2 and is arranged on one side of the motor output simulation unit 3;

[0064] A planetary gear unit 5, which is arranged between the engine output simulation unit 2 and the power recovery unit 4;

[0065] A transmission unit 6, which is arranged in the middle of the support frame 12. The transmission unit 6 is drivingly connected to the planetary gear unit 5 through a transmission gear unit 9. The transmission unit 6 includes a symmetrically arranged first half shaft 61 and a second half shaft 62. The first half shaft 61 and the second half shaft 62 are respectively rotatably connected to the two support frames 12;

[0066] Tires 7, which are respectively fixedly installed at the ends of the first half shaft 61 and the second half shaft 62 that are far away from each other;

[0067] A braking unit 8, which is arranged inside the side support frame 13 and is located below the tire 7. The braking unit 8 includes symmetrically arranged brake cylinders 84 inside the side support frame 13, a first power member for driving the movement of the brake cylinder 84, and a second power member for driving the rotation of the brake cylinder 84. One end of the brake cylinder 84 is slidably connected to an arc-shaped groove opened in the side support frame 13 through a limit shaft, and the other end thereof is fixedly installed with a fixed gear 85.

[0068] The specific implementation manner is as follows: The support unit 1 provides overall structural support. The bottom support plate 11 and the support frame 12 are used as a fixed platform. The engine output simulation unit 2, the motor output simulation unit 3, and the power recovery unit 4, and the planetary gear unit 5 are used for power distribution of the power output by the engine output simulation unit 2 and the motor output simulation unit 3 to coordinate the power output. The transmission unit 6 drives the tires 7 to rotate through the first half shaft 61 and the second half shaft 62 to simulate vehicle driving. The braking unit 8 applies a braking force to the tire 7 through the translation and rotation of the brake cylinder 84 to simulate the braking process. Among them, the movement of the brake cylinder 84 is controlled by the first power member, and the rotation is driven by the second power member. The fixed gear 85 is used to transmit the braking torque, and the second power member drives the brake cylinder 84 to frictionally drive the tire 7 to rotate to simulate the reverse charging of the tire.

[0069] The first power member includes:

[0070] A translation driving member 81, which is symmetrically arranged on the top of one side of the side support frame 13, and one end thereof is rotatably connected to the side support frame 13;

[0071] A first transmission plate 82 is rotatably mounted on the other end of one of the translation driving members 81, and a rotating shaft 83 is rotatably mounted on the other end of the first transmission plate 82. Both ends of the rotating shaft 83 are fixedly connected to the side support frame 13. A second transmission plate 88 is rotatably mounted on one side of the first transmission plate 82, and one side of the first transmission plate 82 is rotatably connected to a fixed gear 85;

[0072] The connecting plate 86 is rotatably mounted on the other end of the other translation driving member 81, and a driving shaft 811 is rotatably mounted on the other end of the connecting plate 86. The driving shaft 811 is rotatably connected to the side support frame 13. A third transmission plate 813 is rotatably mounted on one side of the connecting plate 86. The other end of the third transmission plate 813 is rotatably connected to the other end of the second transmission plate 88. One side of the third transmission plate 813 is rotatably connected to the fixed gear 85, and one side of the connecting plate 86 is rotatably connected to the fixed gear 85.

[0073] The specific implementation is as follows: the translation drive member 81 includes but is not limited to an electric telescopic rod, which is electrically connected to the battery 102 and is controlled by a programming program of the control box 101. The rotation axis of the second transmission plate 88 and the first transmission plate 82 coincides with the rotation axis of the fixed gear 85 and the first transmission plate 82, and the rotation axis of the connecting plate 86 and the third transmission plate 813 coincides with the rotation axis of the fixed gear 85 and the connecting plate 86. The first power member pushes the first transmission plate 82 and the connecting plate 86 to rotate around the rotating shaft 83 and the driving shaft 811 through the translation drive member 81, driving the second transmission plate 88 and the third transmission plate 813 to work in conjunction, so that the brake cylinder 84 slides along the arc-shaped groove of the side support frame 13, thereby realizing the contact or separation of the brake cylinder 84 and the tire 7. The fixed gear 85 moves with the brake cylinder 84 to ensure the gear meshing stability during braking.

[0074] The second power member comprises:

[0075] A power source 812 is fixedly mounted on one side of the side support frame 13, and an output end of the power source 812 is fixedly connected to one end of the drive shaft 811 through a coupling;

[0076] A driving gear 810, which is fixedly mounted on the outside of the driving shaft 811;

[0077] The transmission gear 89 is rotatably mounted on one side of the connecting plate 86 and is located between the fixed gear 85 and the driving gear 810. The outer sides of the transmission gear 89 are respectively meshed and connected with the fixed gear 85 and the driving gear 810;

[0078] The intermediate gear 87 is rotatably installed in a linear array on one side of the third transmission plate 813. Two adjacent intermediate gears 87 are meshed in sequence. The intermediate gear 87 located at the end is meshed and connected with the fixed gear 85. The axis of an intermediate gear 87 away from the driving gear 810 coincides with the axis of the rotation connection between the third transmission plate 813 and the second transmission plate 88.

[0079] The specific implementation method is as follows: The power source 812 includes but is not limited to an electric motor, which is electrically connected to the storage battery 102 and is controlled by the programming program of the control box 101. The power source 812 of the second power component drives the drive shaft 811 to rotate, drives the drive gear 810 to rotate, transmits the power to the fixed gear 85 through the transmission gear 89, makes the brake cylinder 84 rotate, and the intermediate gear 87 forms a gear set on the third transmission plate 813, further amplifying the torque and ensuring the synchronous rotation of the brake cylinder 84, so as to apply frictional braking force to the tire 7. The number of intermediate gears 87 is odd. When the vehicle decelerates or brakes, it is simulated that the tire 7 continues to rotate under the inertial force, and the power source 812 drives the brake cylinder 84 to drive the tire 7 to rotate through friction, drives the outer gear ring 51 of the planetary gear unit 5 to rotate through the transmission unit 6. At this time, the generator 41 switches to the power generation mode and charges the storage battery 102.

[0080] The engine output simulation unit 2 includes:

[0081] A drive source 21, which is fixedly installed on the top of one of the support frames 12;

[0082] An output shaft 22, which is fixedly installed at the output end of the drive source 21 through a coupling;

[0083] A spline shaft 23, which is fixedly installed at the other end of the output shaft 22;

[0084] The power recovery unit 4 includes:

[0085] A generator 41, which is fixedly installed on the top of the other support frame 12, and the output end axis of the generator 41 coincides with the output end axis of the drive source 21;

[0086] A transmission shaft 42, which is fixedly installed at the output end of the generator 41 through a coupling;

[0087] The motor output simulation unit 3 includes:

[0088] A simulation motor 31, which is fixedly installed on the top of the support frame 12, and the simulation motor 31 is located on one side of the generator 41;

[0089] A power shaft 32, which is fixedly installed at the output end of the simulation motor 31 through a coupling;

[0090] A motor gear 33, which is fixedly installed at the other end of the power shaft 32.

[0091] The specific implementation method is as follows: The drive source 21 and the simulation motor 31 both include but are not limited to electric motors, which are electrically connected to the storage battery 102 and are simultaneously controlled by the programming program of the control box 101. The generator 41 includes but is not limited to a DC generator motor, which is electrically connected to the storage battery 102 and is simultaneously controlled by the programming program of the control box 101. The drive source 21 of the motor output simulation unit 2 is a motor simulating an internal combustion engine, and power is input into the planetary gear unit 5 through the output shaft 22 and the spline shaft 23;

[0092] The generator 41 of the power recovery unit 4 is connected to the sun gear 53 of the planetary gear unit 5 through the transmission shaft 42, and the output end of the generator 41 is electrically connected to the storage battery 102 for energy recovery;

[0093] The simulation motor 31 of the motor output simulation unit 3 drives the transmission gear unit 9 through the power shaft 32 and the motor gear 33 to provide power in the electric mode.

[0094] The transmission gear unit 9 includes:

[0095] The pinion gear 92 is rotatably mounted on one side of the support frame 12, and the pinion gear 92 is located below the power shaft 32;

[0096] The large gear 91 is fixedly mounted on the other side of the pinion gear 92, and the large gear 91 is meshed and connected with the motor gear 33;

[0097] The driven gear 93 is fixedly mounted on the outside of the first half shaft 61, and the driven gear 93 is meshed and connected with the pinion gear 92.

[0098] The specific implementation method is as follows: In the transmission gear unit 9, the motor gear 33 drives the large gear 91 and the pinion gear 92 to rotate, and the driven gear 93 transmits the power to the first half shaft 61 to drive the tire 7 to rotate. The large gear 91 is simultaneously meshed with the external gear ring 51 to realize the power coupling between the planetary gear unit 5 and the simulation motor 31.

[0099] The planetary gear unit 5 includes:

[0100] The planet carrier 54 is fixedly mounted at one end of the spline shaft 23;

[0101] The planet gears 52 are rotatably mounted on one side of the planet carrier 54 in a circumferential array;

[0102] The sun gear 53 is fixedly mounted at the other end of the transmission shaft 42. The sun gear 53 is located between several planet gears 52, and the outside of the sun gear 53 is meshed and connected with several planet gears 52;

[0103] The external gear ring 51 is sleeved on the outside of several planet gears 52. The inside of the external gear ring 51 is meshed and connected with several planet gears 52, and the outside of the external gear ring 51 is meshed and connected with the outside of the large gear 91.

[0104] The specific implementation method is as follows: In the planetary gear unit 5:

[0105] The output path of the engine output simulation unit 2 is that the spline shaft 23 drives the planet carrier 54 to rotate. The planet gear 52 revolves around the sun gear 53, driving the ring gear 51 to rotate. The ring gear 51 transmits power to the transmission unit 6 through the large gear 91;

[0106] The power path of the motor output simulation unit 3 is that the motor gear 33 directly drives the large gear 91 to mesh and rotate with the ring gear 51, and transmits power to the transmission unit 6 cooperatively or independently;

[0107] The energy recovery path is that when the tire 7 is reversely dragged, the rotational power of the tire 7 drives the sun gear 53 through the ring gear 51 and the planet gear 52, driving the transmission shaft 42 to rotate and driving the generator 41 to generate electricity.

[0108] The transmission unit 6 further includes:

[0109] The first bevel gear 64 is fixedly installed at one end of the first half shaft 61 and the second half shaft 62 close to each other;

[0110] The bracket 63 is symmetrically fixedly installed on one side of the driven gear 93;

[0111] The connecting shaft 66 is rotatably installed on one side of the bracket 63 respectively, and the axis of the connecting shaft 66 is perpendicular to the axis of the first half shaft 61;

[0112] The second bevel gear 65 is fixedly installed at the other end of the connecting shaft 66 respectively, and the second bevel gear 65 is meshed and connected with the first bevel gear 64.

[0113] The specific implementation method is as follows: The transmission unit 6 transmits the power of the first half shaft 61 to the connecting shaft 66 through the meshing of the first bevel gear 64 and the second bevel gear 65, realizes the differential function, allows the left and right tires 7 to rotate at different speeds, and simulates the working process of a real vehicle differential.

[0114] A storage battery 102 is fixedly installed on the top of the bottom support plate 11. One side of the storage battery 102 is electrically connected to a control box 101. The control box 101 is electrically connected to a display 100. The control box 101 is respectively electrically connected to the drive source 21, the simulation motor 31, the generator 41 and the power source 812.

[0115] The specific implementation method is as follows: The generator 41 and the simulation motor 31 realize the switching of the charge and discharge modes through the control box 101. The storage battery 102 supplies power to the drive source 21, the simulation motor 31 and the power source 812. The control box 101 coordinates the working modes of each unit such as the switching between pure electric, hybrid and braking recovery, and displays teaching data such as power flow, rotational speed and energy recovery efficiency in real time through the display 100, enhancing the demonstration effect.

[0116] Working principle: The bottom support plate 11 and the side support frame 13 of the support unit 1 provide rigid support. The driving source 21 is connected to the planet carrier 54 of the planetary gear unit 5 through a spline shaft 23. The simulation motor 31 drives the outer gear ring 51 to rotate through the motor gear 33 and the large gear 91. The sun gear 53 rotates to drive the generator 41 to generate electricity. The planetary gear unit 5 realizes the coupling and distribution of the power of the simulation engine and the motor through the coordinated action of the sun gear 53, the planet carrier 54 and the outer gear ring 51;

[0117] Working principle of pure electric mode

[0118] The control box 101 shuts down the driving source 21 and starts the simulation motor 31. The motor gear 33 drives the large gear 91 to drive the outer gear ring 51 to rotate. The planet carrier 54 does not move. The planet gear 52 rotates selflessly under the meshing of the outer gear ring 51. The outer gear ring 51 meshes with the sun gear 53 to rotate selflessly. The small gear 92 meshes with and drives the driven gear 93 to rotate, driving the transmission unit 6 to rotate. The transmission unit 6 realizes differential through the first bevel gear 64 and the second bevel gear 65, driving the left and right tires 7 to rotate. At this time, the generator 41 is in a power-off state, and the energy is completely provided by the storage battery 102.

[0119] Working principle of hybrid drive mode

[0120] The driving source 21 and the simulation motor 31 are started simultaneously. The power of the driving source 21 is input through the planet carrier 54, driving the planet gear 52 to rotate selflessly and revolve. Part of the power is output to the transmission unit 6 through the outer gear ring 51, and the other part drives the generator 41 to generate electricity through the sun gear 53. The motor gear 33 directly drives the outer gear ring 51 through the large gear 91 to superimpose the power of the driving source 21. The control box 101 dynamically adjusts the power of the driving source 21 and the load of the generator 41 according to the load, simulating the power split optimization of the hybrid power system. The planetary gear unit 5 automatically balances the speed difference to achieve efficient energy utilization.

[0121] Working principle of braking mode

[0122] During braking, the translation driving member 81 pushes the brake cylinder 84 to slide along the arc-shaped groove to contact the tire 7. The power source 812 drives the drive shaft 811 to drive the transmission gear 89 and the intermediate gear 87 to rotate, causing the brake cylinder 84 to rotate in the reverse direction to rub the tire 7, simulating the resistance received by the tire 7 through the method of extrusion plus rotational friction, and realizing the change of the friction force on the tire 7 by adjusting the position of the brake cylinder 84.

[0123] Working principle of braking energy recovery mode

[0124] The power source 812 is energized, the drive source 21 is de-energized, the drive shaft 811 rotates to drive the drive gear 810 to mesh with the transmission gear 89 and then mesh with the fixed gear 85 to drive the brake cylinder 84 to rotate. The fixed gear 85 meshes with a number of intermediate gears 87 to drive another fixed gear 85 to rotate in the same direction, and drives the tire 7 to rotate through friction. The reverse drag power of the tire 7 is transmitted to the large gear 91 through the first half shaft 61 and the second half shaft 62, driving the outer gear ring 51 to drive the planet gear 52 to force the sun gear 53 to rotate at high speed, and the generator 41 switches to the power generation mode to charge the battery 102. Differential and transmission mechanism design

[0125] The transmission unit 6 realizes the differential function through the symmetrically arranged first bevel gear 64 and the second bevel gear 65: used to simulate that when the vehicle turns, the rotational speeds of the two tires 7 are different, the connecting shaft 66 drives the second bevel gear 65 to rotate differentially, allowing the first half shaft 61 and the second half shaft 62 to rotate at different speeds.

[0126] Teaching interaction and visual control

[0127] The direction of the power flow, battery power, rotational speed and energy recovery rate data are displayed in real time through the display 100. Teachers can demonstrate scenarios such as rapid acceleration, motor + engine combined drive, and coasting braking pure energy recovery through preset programs.

[0128] Only some exemplary embodiments of the present invention have been described by way of illustration. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. A power simulation teaching demonstration device for a hybrid electric vehicle, comprising a support unit (1), wherein the support unit (1) comprises a bottom support plate (11), a support frame (12) is symmetrically fixedly installed on the top of the bottom support plate (11), a side support frame (13) is fixedly installed in the width direction of the bottom support plate (11), and an arc-shaped groove is opened on one side of the side support frame (13), characterized in that: Also includes: An engine output simulation unit (2) is disposed on the top of one of the support frames (12); A motor output simulation unit (3), which is arranged on the top of another support frame (12); A power recovery unit (4) is arranged opposite to the engine output simulation unit (2) and is arranged on one side of the motor output simulation unit (3); A planetary gear unit (5) disposed between the engine output simulation unit (2) and the power recovery unit (4); A transmission unit (6) is arranged in the middle of the support frame (12), the transmission unit (6) is connected to the planetary gear unit (5) through a transmission gear unit (9), the transmission unit (6) comprises a first half shaft (61) and a second half shaft (62) which are symmetrically arranged, and the first half shaft (61) and the second half shaft (62) are respectively connected to the two support frames (12) in rotation; A tire (7) which is fixedly mounted on the first half-axle (61) and the second half-axle (62) at ends away from each other; A brake unit (8) is arranged on the inner side of the side support frame (13) and is located below the tire (7). The brake unit (8) comprises a brake cylinder (84) symmetrically arranged on the inner side of the side support frame (13), a first power member driving the brake cylinder (84) to move, and a second power member driving the brake cylinder (84) to rotate. One end of the brake cylinder (84) is slidably connected to an arc groove provided in the side support frame (13) through a limit shaft, and a fixed gear (85) is fixedly installed on the other end.

2. A power simulation teaching demonstration device for hybrid electric vehicles according to claim 1, characterized in that: The first power member comprises: A translation driving member (81) is symmetrically arranged at the top of one side of the side support frame (13), and one end of the translation driving member is rotatably connected to the side support frame (13); A first transmission plate (82) is rotatably mounted on the other end of one of the translation driving members (81), and a rotating shaft (83) is rotatably mounted on the other end of the first transmission plate (82). Both ends of the rotating shaft (83) are fixedly connected to the side support frame (13). A second transmission plate (88) is rotatably mounted on one side of the first transmission plate (82), and one side of the first transmission plate (82) is rotatably connected to a fixed gear (85); A connecting plate (86) is rotatably mounted on the other end of another translation driving member (81), and a driving shaft (811) is rotatably mounted on the other end of the connecting plate (86). The driving shaft (811) is rotatably connected to the side support frame (13). A third transmission plate (813) is rotatably mounted on one side of the connecting plate (86), and the other end of the third transmission plate (813) is rotatably connected to the other end of the second transmission plate (88). One side of the third transmission plate (813) is rotatably connected to the fixed gear (85), and one side of the connecting plate (86) is rotatably connected to the fixed gear (85).

3. A power simulation teaching demonstration device for hybrid electric vehicles according to claim 2, characterized in that: The second power member comprises: A power source (812) is fixedly mounted on one side of the side support frame (13), and an output end of the power source (812) is fixedly connected to one end of a drive shaft (811) via a coupling; A driving gear (810) fixedly mounted on the outside of the driving shaft (811); A transmission gear (89) is rotatably mounted on one side of the connecting plate (86) and is located between the fixed gear (85) and the driving gear (810). The outer sides of the transmission gear (89) are respectively meshed and connected with the fixed gear (85) and the driving gear (810); The intermediate gears (87) are rotatably mounted on one side of the third transmission plate (813) in a linear array, two adjacent intermediate gears (87) are meshed in sequence, the intermediate gear (87) at the end is meshed and connected with the fixed gear (85), and the axis of an intermediate gear (87) away from the driving gear (810) coincides with the axis of the rotation connection between the third transmission plate (813) and the second transmission plate (88).

4. A power simulation teaching demonstration device for hybrid electric vehicles according to claim 1, characterized in that: The engine output simulation unit (2) comprises: A driving source (21) fixedly mounted on the top of one of the supporting frames (12); An output shaft (22) is fixedly mounted on the output end of the driving source (21) via a coupling; A spline shaft (23) fixedly mounted on the other end of the output shaft (22); The power recovery unit (4) comprises: A generator (41) is fixedly mounted on the top of another support frame (12), wherein the output end of the generator (41) coincides with the axis of the output end of the driving source (21); A transmission shaft (42) fixedly mounted on an output end of the generator (41) via a coupling; The motor output simulation unit (3) comprises: A simulated motor (31) is fixedly mounted on the top of the support frame (12), wherein the simulated motor (31) is located on one side of the generator (41); A power shaft (32) fixedly mounted on the output end of the simulated motor (31) via a coupling; The motor gear (33) is fixedly mounted on the other end of the power shaft (32).

5. A power simulation teaching demonstration device for hybrid electric vehicles according to claim 4, characterized in that: The transmission gear unit (9) comprises: A pinion gear (92) is rotatably mounted on one side of the support frame (12), wherein the pinion gear (92) is located below the power shaft (32); A large gear (91) is fixedly mounted on the other side of the small gear (92), and the large gear (91) is meshedly connected with the motor gear (33); The driven gear (93) is fixedly mounted on the outside of the first half shaft (61), and the driven gear (93) is meshedly connected with the pinion gear (92).

6. A power simulation teaching demonstration device for hybrid electric vehicles according to claim 5, characterized in that: The planetary gear unit (5) comprises: A planet carrier (54) fixedly mounted on one end of the spline shaft (23); Planetary gears (52) are rotatably mounted on one side of a planetary carrier (54) in a circumferential array; A sun gear (53) is fixedly mounted on the other end of the transmission shaft (42), the sun gear (53) is located between the plurality of planetary gears (52), and the outer side of the sun gear (53) is meshedly connected with the plurality of planetary gears (52); The outer gear ring (51) is sleeved on the outside of the plurality of planetary gears (52); the inner side of the outer gear ring (51) is meshed and connected with the plurality of planetary gears (52); and the outer side of the outer gear ring (51) is meshed and connected with the outer side of the large gear (91).

7. A power simulation teaching demonstration device for hybrid electric vehicles according to claim 5, characterized in that: The transmission unit (6) further comprises: A first bevel gear (64) is fixedly mounted on one end of the first half shaft (61) and the second half shaft (62) close to each other; A bracket (63) is symmetrically fixedly mounted on one side of the driven gear (93); A connecting shaft (66) is rotatably mounted on one side of the bracket (63), wherein the axis of the connecting shaft (66) is perpendicular to the axis of the first semi-shaft (61); The second bevel gear (65) is fixedly mounted on the other end of the connecting shaft (66), and the second bevel gear (65) is meshedly connected with the first bevel gear (64).

8. A power simulation teaching demonstration device for hybrid electric vehicles according to claim 4, characterized in that: A storage battery (102) is fixedly mounted on the top of the bottom support plate (11); one side of the storage battery (102) is electrically connected to a control box (101); the control box (101) is electrically connected to a display (100); and the control box (101) is electrically connected to a driving source (21), a simulation motor (31), a generator (41), and a power source (812), respectively.

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