Extending type digital steering engine and working method thereof

Abstract

The invention discloses an extending type digital steering engine and a working method thereof. The steering engine comprises a steering engine control unit, a motor control circuit, a motor driving module, a feedback module, a brushless motor, a serial communication module, a retarding mechanism, a position sensor and the like. According to the steering engine and the working method thereof, a standard control mode and an extended control mode are set, the compatibility is high, and the applicability is high. Since a serial communication bus is adopted, parallel connection and serial connection can both be achieved in the system assembly, so that the connector is simple, the system connecting cable is drastically simplified, the reliability of the system is improved, and a basis is laid for modularized design and modularized production. The technical problem that an existing traditional digital steering engine is small in unit size output torque and the problems that closed-loop control cannot be formed, no protection circuit exists, and the control signals and connector connecting cables are complex, large in number and low in reliability are solved, and the extending type digital steering engine can be widely applied to mobile robot joint degree-of-freedom control, and can also be applied to unmanned propeller actuating and control and manipulation and control of the attitude of aircrafts like a model airplane.

Description

technical field [0001] The invention belongs to the technical field of automation control, in particular to an extended digital steering gear and its working method. Background technique [0002] With the rapid development of automation equipment applications, the demand for steering gear in the field of control is becoming more and more extensive. More and more applications have put forward higher requirements for the volume, torque, control mode, and structural compatibility of steering gear. . Traditional digital steering gear and analog steering gear basically use brushed motors, which determines that these two steering gears have the following disadvantages: the volume of the steering gear with high torque is also large, which brings more problems to installation and structural layout. There are many limitations; the torque of the small steering gear is not enough, and its application range is greatly reduced; in addition, the brush motor uses carbon brushes for commut...

AI Technical Summary

Problems solved by technology

Traditional digital steering gear and analog steering gear basically use brushed motors, which determines that these two steering gears have the following disadvantages: the volume of the steering gear with high torque is also large, which brings more problems to installation and structural layout. There are many limitations; the torque of the small steering gear is not enough, and its application range is greatly reduced; in addition, the brush motor uses carbon brushes for commutation, so this type of steering gear will produce sparks when commutating phases, which limits the scope of use. And short life, easy to damage, increased maintenance costs, etc.

[0006] As can be seen from the above, although the general digital steering gear solves the control problem of the traditional steering gear, its rotation angle range is still only 180 degrees. Negative 90-degree adjustment or 0-180 degrees), or the motor mode (360-degree rotation), the two have not been well taken into account, making it subject to great limitations in practical applications

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