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Wheel tooth gap compensation method, system and controller

A backlash compensation and controller technology, applied in belts/chains/gears, transmission parts, mechanical equipment, etc., to simplify the compensation logic and improve the compensation accuracy

Active Publication Date: 2020-06-16
合肥阳光电动力科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the b-tooth and the C-tooth are attached, there will be a large impact and rebound, which will cause the contact surface of the b-tooth and the C-tooth to repeat many times before they can be stably fitted, that is, there is teeth jitter

Method used

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  • Wheel tooth gap compensation method, system and controller
  • Wheel tooth gap compensation method, system and controller
  • Wheel tooth gap compensation method, system and controller

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Embodiment Construction

[0043] The structure of the new energy electric vehicle transmission system includes three parts: the drive motor, the gearbox, and the transmission shaft. The three parts are connected by a gear structure. Due to the existence of the gap between the teeth, when the direction of motion of the gear is reversed, it will cross the gap between the teeth and cause gnashing vibration , which in turn leads to the setback of the whole vehicle, poor comfort and driving experience.

[0044]At present, the traditional gear backlash compensation schemes are to perform torque compensation separately for different working conditions where teeth jitter occurs. Accelerator start moment; ②No bite compensation, low speed, step on the accelerator to enter the drive mode; ③No backlash compensation, low speed, release the accelerator to exit the drive mode; ④No backlash compensation, high speed, step on the accelerator, switch from feedback mode Instantaneous in driving mode; ⑤ No gear backlash co...

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Abstract

The invention provides a wheel tooth gap compensation method, a system and a controller. The compensation method comprises the steps that a wheel tooth gap compensation strategy is entered when the output torque of a driving wheel is detected to be changed from zero to non-zero or is about to be reversed, at this time, the relative rotation speed of the driving wheel and a driven wheel is acquired, then the relative rotating speed is compared with a relative rotating speed target value, a bidirectional torque pulse sequence signal is output, the output torque of the driving wheel is adjusted according to the bidirectional torque pulse sequence signal until the relative rotating speed is detected to be zero, and the wheel tooth gap compensation is ended. According to the compensation method, the impact and rebound generated across the wheel tooth gap in the reverse process of the rotation direction of the driving gear can be eliminated.

Description

technical field [0001] The invention belongs to the technical field of gear transmission, and in particular relates to a gear tooth clearance compensation method, system and controller. Background technique [0002] In motor control equipment with a gear transmission structure, the inherent characteristics of the gear structure determine that there is a certain redundant space between the teeth that mesh with each other, that is, the gear gap. [0003] See figure 1 , showing a schematic diagram of the tooth meshing process of a gear, assuming figure 1 The upper middle gear is the driving wheel, and the lower gear is the driven wheel. At a certain moment when the driving wheel rotates clockwise, the b tooth of the driving wheel is closely attached to the B tooth of the driven wheel. At this time, there is a large gap between the b tooth and the C tooth. gap. [0004] Due to the existence of the gear tooth gap, when the direction of gear movement changes, for example, the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/12
CPCF16H57/12F16H2057/123
Inventor 刘光辉王辉霍炯于安博
Owner 合肥阳光电动力科技有限公司
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