Control system and method for dual-redundancy electric steering engine
A control system and electric steering gear technology, applied in general control systems, control/regulation systems, computer control, etc., can solve the problems of complex system structure, complex control algorithm, low reliability, etc., to achieve reliable operation and improve reliability. , the effect of the simple method
Inactive Publication Date: 2015-08-19
NO 771 INST OF NO 9 RES INST CHINA AEROSPACE SCI & TECH
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Problems solved by technology
This design needs to balance the current of the two windings, the system structure is complex, the control algorithm is complicated, there are problems such as MCU single point, and the reliability is low
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[0020] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.
[0021] The present invention is a dual redundant electric steering gear control system, which includes the first and second motors for power input to the differential epicyclic train reducer controlling the steering gear respectively, and is used to collect the first position of the steering gear motion state sensors and the second position sensor; the first and second digital control units for respectively receiving the signals of the first and second position sensors; the first and second brakes are respectively set on the first and second motors, and the first and second brakes are respectively connected to the first 1. The output terminals of the second digital control unit are connected; the first and second digital control units send control signals to the first and second motors through...
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The invention provides a control system for a dual-redundancy electric steering engine. The control system comprises a first motor and a second motor for power input of a differential epicyclic gear train speed reducer for controlling the steering engine, a first position sensor and a second position sensor used for acquiring motion state of the steering engine, and a first digital control unit and a second digital control unit used for respectively receiving signals of the first position sensor and the second position sensor, the first motor and the second motor are respectively provided with a first brake and a second brake, the first brake and the second brake are respectively connected with output terminals of the first digital control unit and the second digital control unit, the first digital control unit and the second digital control unit respectively send control signals to the first motor and the second motor via a first inverter and a second inverter, the first inverter and the second inverter are respectively provided with a first bridge current sensor and a second bridge current sensor used for transmitting bridge current sampling signals to the first digital control unit and the second digital control unit, the first digital control unit and the second digital control unit respectively receive steering instruction signals for controlling a computer via a CAN bus interface, the first digital control unit and the second digital control unit are mutually connected and communicate with each other, and the first digital control unit and the second digital control unit are heat backups to each other.
Description
technical field [0001] The invention relates to electric steering gear control of high-reliability aircraft, in particular to a double redundant electric steering gear control system and method. Background technique [0002] Most of the current dual redundant steering gears are motors driven by double-winding brushless DC motors, and the control MCU is a single structure. For example, the publication number: CN 103279128 A patent "Sliding mode control method and drive device for dual-redundancy brushless DC electric steering gear". This design needs to balance the current of the two windings, the system structure is complicated, the control algorithm is complicated, there are problems such as MCU single point, and the reliability is low. Contents of the invention [0003] Aiming at the problems existing in the prior art, the present invention provides a dual redundant electric steering gear control system and method with high reliability, simple control and convenient ope...
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IPC IPC(8): G05B19/042
CPCG05B19/0428
Inventor 杜凌云马联强龚荣文段晓飞
Owner NO 771 INST OF NO 9 RES INST CHINA AEROSPACE SCI & TECH
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