Launching vehicle high-reliability aligning control method

Abstract

The invention discloses a launching vehicle high-reliability aligning control method and belongs to the design field of launching vehicle control systems. In each aligning control period, a pitch angle [eta] of a launching frame under a ground coordinate system and a yaw angle [sigma] of a revolution platform under the ground coordinate system are measured and collected, and the state information of an existing vehicle body of the launching vehicle, such as the transverse levelness and the longitudinal levelness under the ground coordinate system and an erection angle and a revolution angle under a vehicle body coordinate system are utilized to calculate the data such as the pitch angle of an equivalent launching frame under the ground coordinate system and the yaw angle of the revolution platform under the ground coordinate system. When measuring devices in the system have faults, the pitch angle of the equivalent launching frame under the ground coordinate system and the yaw angle of the revolution platform under the ground coordinate system are used in the control operation of the launching frame and the revolution platform, the launching process is still successful, and the reliability of the launching vehicle in the aligning control process is substantially improved.

Description

technical field [0001] The invention relates to a high-reliability alignment control method for a launch vehicle, which belongs to the field of control system design of a launch vehicle. Background technique [0002] The alignment action includes the erection and rotation of the launch frame, which is a key action in the launch workflow and directly determines the success or failure of the launch process. Therefore, the reliability of the alignment control method directly determines the reliability of the launch vehicle. In order to ensure the success of the launch mission, it is necessary to start with the design of software and hardware to improve the reliability of the control method. [0003] At present, the alignment action is mainly controlled based on the angle information collected by the sensor. For example, during the alignment process, the angle in the geodetic coordinate system collected by the laser strapdown inertial group is used as position feedback; in the...

AI Technical Summary

Problems solved by technology

[0004] However, during the alignment process, the sensor is a single-point device. If the laser strapdown inertial group or the photoelectric encoder fails, the entire alignment operation cannot be performed, resulting in launch failure.

Images