Control method
By employing a speed-current series dual closed-loop start-up method in the thrust-type electric actuator, and switching to a pressure or position-current series dual closed-loop method when the motor driving force and load force are balanced, the problems of control scheme complexity and unreasonable switching are solved, achieving a more stable and faster control effect.
CN121193136APending Publication Date: 2025-12-23UNITED AUTOMOTIVE ELECTRONICS SYST
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Patent Information
- Application Number
- CN202410808641.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-12-23
AI Technical Summary
Technical Problem
The control schemes for thrust-type electric actuators in the existing technology are generally complex, and the switching timing of control sub-schemes is unreasonable and the stability is poor.
Method used
The motor start-up is controlled by a speed-current series dual closed-loop method, and when the motor driving force and load force are balanced, it switches to a pressure-current or position-current series dual closed-loop method. The switching timing is optimized by limiting the current inner loop before switching.
Benefits of technology
This reduces the overall complexity of the control scheme, improves the timing of switching between control sub-schemes, and enhances the stability and response speed of dynamic switching.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a control method. The control method comprises the following steps: controlling a motor to start based on a rotating speed-current serial double closed-loop mode; and when the driving force and the loading force of the motor are balanced, switching to control the motor to work based on a pressure-current series-connection type double closed-loop mode or a position-current series-connection type double closed-loop mode. According to the configuration, on one hand, different control modes are used in different stages, and the overall complexity of the control scheme is reduced; on the other hand, the logic of the switching control sub-schemes is modified, so that the switching opportunity between the two control sub-schemes is more reasonable; the problem that in the prior art, the whole control scheme is complex or the switching opportunity of the control sub-schemes is unreasonable is solved. In one embodiment of the invention, when the difference value between the driving force and the load force is small, the output amplitude limiting of the current inner loop is triggered, and the stability during dynamic switching can be further improved.
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