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Gear shifting control system, gear shifting control method and vehicle

A technology of a control system and a control method, applied in the field of vehicles, capable of solving problems such as poor NVH performance

Active Publication Date: 2020-05-29
GREAT WALL MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention aims to propose a shift control system to solve the problem of poor NVH performance of existing vehicles in the shift operation phase

Method used

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  • Gear shifting control system, gear shifting control method and vehicle
  • Gear shifting control system, gear shifting control method and vehicle
  • Gear shifting control system, gear shifting control method and vehicle

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0053]An embodiment of the present invention provides a gear shift control system, which can be used in a vehicle. The shift control system may include: a shift controller, a drive motor, a drive motor controller, a speed reducer, a speed reducer controller, and a shift motor; wherein, the shift controller is connected to the drive motor controller respectively 1. The speed reducer controller is connected; the drive motor controller is connected with the drive motor; the speed reducer controller is connected with the speed reducer; the shift motor is connected with the speed reducer and the speed reducer respectively connected to the reducer controller; the reducer controller is used to control the shift motor to drive the reducer to perform a neutral operation according to the shift permission instruction sent by the shift controller; the drive motor controller is used to control The speed of the drive motor is adjusted to a target speed; the speed reducer controller is used ...

Embodiment 2

[0085] refer to figure 2 , which shows a flow chart of steps of a shift control method according to an embodiment of the present invention, the method may be used in a vehicle, and the method may specifically include:

[0086] Step 201: The reducer controller controls the shift motor to drive the reducer to perform a neutral gear operation according to the shift permission instruction sent by the shift controller.

[0087] In the embodiment of the present invention, the shift controller is connected to the drive motor controller and the reducer controller respectively; the drive motor controller is connected to the drive motor; the reducer controller is connected to the reducer ; The shift motor is respectively connected with the reducer and the reducer controller.

[0088] In this step, the speed reducer controller can be used to control the shift motor to drive the speed reducer to perform the neutral gear operation according to the shift permission instruction sent by the...

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PUM

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Abstract

The invention provides a gear shifting control system, a gear shifting control method and a vehicle. The gear shifting control system comprises a gear shifting controller, a speed reducer controller and a gear shifting motor, wherein the gear shifting controller is connected with a driving motor controller and the speed reducer controller; the gear shifting motor is connected with the speed reducer and the speed reducer controller; the speed reducer controller is used for controlling the gear shifting motor to drive the speed reducer to complete gear shifting operation; the gear shifting operation comprises a starting stage, a synchronization stage and an ending stage; in the starting stage, the speed reducer controller controls the gear shifting motor to accelerate according to a preset ascending slope; and in the ending stage, the speed reducer controller controls the gear shifting motor to decelerate according to a preset descending slope. According to the embodiment of the invention, the noise and vibration of the vehicle in the gear shifting stage can be reduced, and the NVH performance of the vehicle in the gear shifting stage is improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a gear shift control system, a gear shift control method and a vehicle. Background technique [0002] With the development of vehicle technology, users have higher and higher requirements for vehicle comfort and dynamic performance. For the vehicle shift system, users expect shorter shift time, smoother shift process, and longer service life of the transmission. long. [0003] At present, the shifting process of an electric vehicle mainly includes stages such as picking up neutral gear, adjusting the speed of the driving motor, and shifting operations. In the shifting operation stage, the shifting motor mainly drives the shift fork and the synchronizer to perform shifting operations on the reducer. Due to the unavoidable fit gap between the shift motor and the reducer, and between the parts in the reducer, the shift motor should be The impact between the reducer and the compon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/04F16H61/32
CPCF16H61/04F16H61/32
Inventor 刘新强李建辉章宏文刘栋栋布涛涛刘强曹兴顺
Owner GREAT WALL MOTOR CO LTD