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CN-121993563-A - Gearbox, transmission system and vehicle

CN121993563ACN 121993563 ACN121993563 ACN 121993563ACN-121993563-A

Abstract

The disclosure provides a gearbox, a transmission system and a vehicle, and belongs to the technical field of automobile gearboxes. The gearbox comprises an input shaft, an input gear, a driving assembly and a controller. The input shaft is adapted for driving connection with the engine. The input gear is sleeved on the output shaft and is used for being meshed with the output gear sleeved on the output shaft. The driving component is in transmission connection with the input shaft. The controller is electrically connected with the driving assembly and is used for controlling the driving assembly to apply preset torque to the input shaft. According to the transmission gear transmission device, the controller can control the driving assembly to apply preset torque to the input shaft when the input gear is reversely dragged by the output gear, the input gear can rotate relative to the output gear before the engine outputs power to the transmission gear again, the stroke of multiple rotations of the input gear relative to the output gear when the engine drives the input gear to drive the output gear again is reduced, and abnormal noise generated when the input gear is contacted with the output gear again is improved.

Inventors

  • MA HAOCHENG
  • HONG DONGSHENG

Assignees

  • 奇瑞汽车股份有限公司

Dates

Publication Date
20260508
Application Date
20260324

Claims (10)

  1. 1. A gearbox (1), characterized in that the gearbox (1) comprises an input shaft (10), an input gear (11), a drive assembly (12) and a controller; The input shaft (10) is used for being in transmission connection with an engine; The input gear (11) is sleeved on the input shaft (10) and is used for being meshed with an output gear sleeved on the output shaft; The driving assembly (12) is in transmission connection with the input shaft (10); The controller is electrically connected with the driving assembly (12), and the controller is used for controlling the driving assembly (12) to apply preset torque to the input shaft (10).
  2. 2. Gearbox (1) according to claim 1, characterised in that the drive assembly (12) comprises a motor (121), a shaft (122) and a compensating gear (123); the rotating shaft (122) is connected with the motor (121); The compensation gear (123) is sleeved on the rotating shaft (122), and the compensation gear (123) is in transmission connection with the input shaft (10); the controller is electrically connected with the motor (121), and the controller is used for controlling the motor (121) to output the preset torque.
  3. 3. Gearbox (1) according to claim 2, characterized in that it further comprises a counter gear (13); The pairing gear (13) is sleeved on the input shaft (10) and meshed with the compensation gear (123).
  4. 4. Gearbox (1) according to claim 2, characterised in that the compensation gear (123) meshes with the input gear (11).
  5. 5. Gearbox (1) according to claim 2, characterised in that the motor (121) is an asynchronous motor.
  6. 6. Gearbox (1) according to claim 1, wherein said input shaft (10) comprises a first input shaft (10 a) and a second input shaft (10 b), said input gear (11) comprising an odd gear (11 a) and an even gear (11 b); The first input shaft (10 a) and the second input shaft (10 b) are used for alternatively being in transmission connection with the engine and are in transmission connection with the driving assembly (12); The odd-numbered stage gears (11 a) are sleeved on the first input shaft (10 a); the even gear (11 b) is sleeved on the second input shaft (10 b); The controller is configured to control the drive assembly (12) to apply the preset torque to the first input shaft (10 a) or to control the drive assembly (12) to apply the preset torque to the second input shaft (10 b).
  7. 7. Gearbox (1) according to claim 6, wherein the drive assembly (12) comprises a first drive assembly (12 a) and a second drive assembly (12 b); the first driving assembly (12 a) is in transmission connection with the first input shaft (10 a); the second driving assembly (12 b) is in transmission connection with the second input shaft (10 b); The controller is electrically connected with the first driving component (12 a) and the second driving component (12 b), and is used for controlling the first driving component (12 a) to apply the preset torque to the first input shaft (10 a) or controlling the second driving component (12 b) to apply the preset torque to the second input shaft (10 b).
  8. 8. Gearbox (1) according to claim 6, wherein the second input shaft (10 b) is sleeved on the first input shaft (10 a) and can rotate relative to the first input shaft (10 a).
  9. 9. A transmission system, characterized in that the transmission system comprises a gearbox (1) according to any one of claims 1-8.
  10. 10. A vehicle comprising the transmission system of claim 9.

Description

Gearbox, transmission system and vehicle Technical Field The disclosure belongs to the technical field of automobile gearboxes, and particularly relates to a gearbox, a transmission system and a vehicle. Background In a transmission system of a vehicle, a transmission is one of core components. The engine of the vehicle outputs power and then sequentially transmits the power to the input shaft and the output shaft of the gearbox, and finally transmits the power to wheels of the vehicle, so that the vehicle is driven to run. The input shaft is provided with an input gear, the output shaft is provided with an output gear, and the input shaft and the output shaft are meshed with each other through the input gear to realize transmission. At the meshing position of the input gear and the output gear, the input teeth of the input gear are positioned between two adjacent output teeth on the output gear, and if the input teeth are abutted with one of the output teeth, a side gap is formed between the input teeth and the other output teeth. The side gap can store lubricating oil, compensate assembly errors and the like. However, if the accelerator is stepped on or released a plurality of times in succession due to the presence of the backlash, abnormal sound tends to occur. Disclosure of Invention The present disclosure provides a transmission, a transmission system, and a vehicle capable of solving technical problems existing in related arts. The technical scheme is as follows: The embodiment of the disclosure provides a gearbox, which comprises an input shaft, an input gear, a driving assembly and a controller; The input shaft is used for being in transmission connection with the engine; The input gear is sleeved on the output shaft and is used for being meshed with the output gear sleeved on the output shaft; the driving assembly is in transmission connection with the input shaft; The controller is electrically connected with the driving assembly, and is used for controlling the driving assembly to apply preset torque to the input shaft. In some possible embodiments, the drive assembly includes a motor, a shaft, and a compensating gear; the rotating shaft is connected with the motor; the compensation gear is sleeved on the rotating shaft and is in transmission connection with the input shaft; The controller is electrically connected with the motor, the controller is used for controlling the motor to work, and the motor drives the rotating shaft and the compensating gear to rotate and applies the preset torque to the input shaft. In some possible embodiments, the gearbox further comprises a mating gear; the matched gear is sleeved on the input shaft and meshed with the compensation gear. In some possible embodiments, the compensation gear meshes with the input gear. In some possible embodiments, the motor is an asynchronous motor. In some possible embodiments, the input shaft comprises a first input shaft and a second input shaft, the input gears comprising odd-numbered stage gears and even-numbered stage gears; The first input shaft and the second input shaft are used for alternatively being in transmission connection with the engine and are in transmission connection with the driving assembly; the odd-numbered gears are sleeved on the first input shaft; The even gear is sleeved on the second input shaft; the controller is configured to control the drive assembly to apply the preset torque to the first input shaft under a first condition or to control the drive assembly to apply the preset torque to the second input shaft under a second condition. In some possible embodiments, the drive assembly comprises a first drive assembly and a second drive assembly; The first driving component is in transmission connection with the first input shaft; the second driving component is in transmission connection with the second input shaft; The controller is electrically connected with the first driving assembly and the second driving assembly, and is used for controlling the first driving assembly to apply the preset torque to the first input shaft or controlling the second driving assembly to apply the preset torque to the second input shaft. In some possible embodiments, the second input shaft is sleeved on the first input shaft, and can rotate relative to the first input shaft. The disclosed embodiments also provide a transmission system including a gearbox as described above. The disclosed embodiments also provide a vehicle including a transmission system as described above. The technical scheme provided by the disclosure at least comprises the following beneficial effects: The gearbox provided by the disclosure can control the driving assembly to apply preset torque to the input shaft when the output gear reversely drags the input gear through the controller, so that the input gear can rotate relative to the output gear before the engine outputs power to the gearbox again, the stroke of the engine for driving the input g