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Quick gear-shift control method and control system for electric vehicle gearbox

A technology for electric vehicles and control methods, which is applied in the direction of transmission control, components with teeth, belts/chains/gears, etc., and can solve the problems of long speed difference and slow shifting speed.

Active Publication Date: 2012-06-20
CHANGSHA CRRC INTELLIGENT CONTROL & NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it takes a long time to eliminate the side speed difference between the master and slave gears, and the shift speed is slow

Method used

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  • Quick gear-shift control method and control system for electric vehicle gearbox
  • Quick gear-shift control method and control system for electric vehicle gearbox
  • Quick gear-shift control method and control system for electric vehicle gearbox

Examples

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Embodiment Construction

[0013] The following description is an example only and is not intended to limit the invention, its application or uses. It should be understood that corresponding reference numerals will be used in the drawings to denote similar elements, and the present invention will be further described below with reference to the drawings.

[0014] A quick shift control method for an electric vehicle gearbox, including a PID controller module and a data acquisition module. The data and signals are used to quickly adjust the motor speed through the PID controller, so that the master and slave gears of the gearbox can be quickly synchronized to complete the gear shifting operation.

[0015] As a further specific implementation of this embodiment, the data acquisition module includes a gearbox output speed sensor, a motor speed sensor, and a gearbox gear recognition sensor, such as image 3 The speed sensor at the output end of the gearbox shown, the motor speed sensor, and the gearbox gear...

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PUM

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Abstract

The invention discloses a quick gear-shift control method and control system for an electric vehicle gearbox. The quick gear-shift control system comprises a PID (Proportion Integration Differentiation) controller module and a data acquiring module, wherein the data acquiring module acquires the rotation speed of the gearbox output end, the current rotation speed of a motor and the shift gear signal of the driver; the data acquired by the data acquiring module is transmitted to the PID controller module which adjusts the rotation speed of the motor based on the data, so that drive and driven gears quickly and synchronously finish the gear-shift operation, thus the gear-shift time is greatly shortened.

Description

technical field [0001] The invention relates to a control method and device for an electric vehicle, in particular to a control method and a control system for quick shifting of a gearbox, and belongs to the technical field of electric vehicle control. Background technique [0002] Generally, high-speed gear is used when driving, and low-speed gear is used for climbing. The air pressure is used as auxiliary power for gear shifting. The gear shifting process is controlled by a gear shift handle (position switch) to control the solenoid valve of the gearbox, and the solenoid valve controls the air tank to exercise. Push-pull operation of the shift lever. The second-speed gearbox is called the main gear connected to the motor, and the driven gear is called the slave gear connected to the transmission shaft. When switching between high-speed gear and low-speed gear, the radius of the main-slave transmission gear of the reduction box changes, but the speed remains unchanged, so ...

Claims

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Application Information

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IPC IPC(8): F16H61/02F16H61/32
Inventor 黄兴王文明谭建林李红朋王海斌毛懿坪张群政
Owner CHANGSHA CRRC INTELLIGENT CONTROL & NEW ENERGY TECH CO LTD
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