Steering engine position information processing method and system

Abstract

The invention provides a steering engine position information processing method and system. A steering engine speed ring sensor is directly connected onto a motor shaft and a test on a rotary speed ofthe motor is realized. An output shaft of the motor is connected with a steering sheet through a speed reducing mechanism and then the steering sheet is controlled. Before a steering engine is used each time, the steering sheet is aligned to a mechanical zero position and then the steering engine is electrified. After the steering engine is electrified, a speed ring encoder is used for acquiringan encoder code value n in a period I at a fixed period and converting to obtain a rotary speed of the motor in the current period; a deflection angle of the steering engine in the current period canbe obtained by combining a speed reducing ratio of a speed reducer through conversion, so that a current position of the steering engine is obtained and estimation on the position of the electric steering engine without a position sensor is realized; the steering engine does not need the position sensor and the estimation on the position of the electric steering engine can be realized through a conversion equation, so that the cost, volume and weight of the electric steering engine are reduced.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a method and system for processing position information of a steering gear. Background technique [0002] The steering gear is a position (angle) servo drive, suitable for those control systems that require constant changes in angle and can be maintained. At present, it has been widely used in high-end remote-controlled toys, such as airplanes, submarine models, and remote-controlled robots. [0003] The steering gear is mainly composed of a casing, a circuit board, a drive motor, a reducer and a position detection element. Its working principle is that the receiver sends a signal to the steering gear, and the IC on the circuit board drives the coreless motor to start rotating, and the power is transmitted to the swing arm through the reduction gear, and at the same time, the position detector sends back a signal to determine whether it has reached position. The position detector ...

AI Technical Summary

Problems solved by technology

Although the dual-sensor control scheme can improve the control accuracy of the position loop, the introduction of the position loop sensor increases the cost and the volume and weight of the electric steering gear. For this reason, the present invention provides a method for estimating the position of the electric steering gear without a position loop sensor, which not only reduces the cost , also reduces the size and weight of the electric steering gear

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