A ramp control method for electric vehicle switched reluctance motor

Abstract

The invention relates to a ramp slow-slip control method for a switched reluctance motor of an electric vehicle, which is designed based on the unique operation control characteristics of the switched reluctance motor, and judges whether the electric vehicle enters the anti-slope mode according to the signal of a position sensor and the voltage of the handlebar , realize the automatic recognition of the slope state, and enter the anti-slope mode, which can shorten the slope distance of the electric vehicle and improve the safety and reliability of the electric vehicle system, and the anti-slope mode enables the switched reluctance motor to run in the power generation state, which can Feedback of the braking energy to the capacitor and the battery can effectively improve the endurance of the electric vehicle and increase the effective use time of the battery.

Description

technical field [0001] The invention relates to a method for controlling slow sliding of a switched reluctance motor of an electric vehicle, and belongs to the technical field of drive control of electric vehicles. Background technique [0002] The increasingly serious energy problem forces the automotive industry to look for new vehicle energy solutions. Electric energy, as a clean and non-polluting energy source, has attracted extensive attention from the automotive industry. Switched reluctance motors were developed in the early 1980s. A new type of speed regulating motor has the characteristics of simple structure, good fault tolerance, and high efficiency. It has become a new generation of stepless speed regulating system after frequency conversion speed regulating system and brushless DC motor speed regulating system. Applications and aerospace and other fields successfully applied. With the shortage of energy and the reduction of rare earth resources, it has graduall...

AI Technical Summary

Problems solved by technology

[0003] The existing anti-slope control method generally consists of two types: one is to install an angle sensor on the controller, use the angle sensor to detect the current slope angle, and calculate the anti-slope control stable current according to the slope angle; the other is to use PID Speed ​​closed-loop control, since the controlled object is a large inertia system, it is difficult to achieve a good balance in response speed and overshoot by using PID control, so that the slope distance cannot be shortened well

In practical applications, the first method needs to pay additional device costs, and the second method needs to adjust PID parameters, which makes debugging complicated

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