A multi-channel solid thruster array control driving system and method
An array control and drive system technology, which is applied to the propulsion system devices of space navigation vehicles, etc., can solve the problems such as the inability of the drive current to be turned on and the inability to feedback the success of ignition.
Active Publication Date: 2020-06-09
BEIJING INST OF CONTROL ENG
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Problems solved by technology
The drive mode of the special control drive system includes matrix drive mode and non-matrix drive mode. Due to possible defects in the production of MEMS solid micro thrusters, a certain drive current cannot be turned on due to problems such as poor thermal fuse contact. The existing drive control system can only send the ignition signal, but cannot feedback whether the ignition is successful
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[0029] The present invention will be described in detail below in conjunction with the drawings.
[0030] A multi-channel solid thruster array control drive system, such as figure 1 As shown, it includes an upper computer, a power module, a drive module, an array module, and a control communication module. The upper computer sends an ignition command to the control communication module. The ignition command includes the ignition position coordinates of the array module or the ignition quantity of the array module. The control communication module receives Ignition command. If the received ignition command is the ignition position coordinate of the array module, the control communication module generates a pulse signal at the corresponding I / O terminal according to the ignition position coordinate; if the received ignition command is the ignition quantity of the array module, then The control communication module judges the ignition position coordinate information of the array modu...
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The invention discloses a multi-solid-thruster array control driving system and method. Compared with a traditional MEMS (microelectromechanical systems) micro-thruster control system which cannot acquire information about whether MEMS micro-thrusters are successfully ignited after an ignition command is sent out, the system herein carries out sampling on ignition current and feeds back the sampled current information to an upper computer, so that information about whether ignition is successful can be fed back directly; amplitude of sampled voltage of the ignition current can be utilized to calculate information about the number of successful ignitions. The traditional multi-solid-thruster array control driving system requires the upper computer to inform the specific coordinates of an ignition position; the system herein can autonomously judge coordinate information of the ignition position of an array set, autonomously select an ignition point to carry out igniting, and feed a success signal back to the upper computer such that the MEMS solid micro-thrusters are more flexible to control.
Description
Technical field [0001] The invention relates to a multi-channel solid thruster array control driving system and method, belonging to the field of low-cost satellite attitude orbit control. Background technique [0002] MEMS solid micro-thruster array is a new type of integrated chemical propulsion device, which is mainly used for the attitude and orbit control of micro-satellites. It has small size, simple structure, low power consumption, strong controllability, high integration, and small size. The precise impulse and other advantages are highly valued by research institutions at home and abroad. [0003] MEMS solid micro-thruster is a solid propellant micro-propulsion system based on MEMS technology. The solid propellant is stored in an atmospheric storage cavity made by micromachining. Using MEMS technology, multiple independently addressable micro thruster units can be integrated on the same chip, usually rectangular arrays, which can generate 10 -4 -10 -6 The impulse pulse o...
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IPC IPC(8): B64G1/40
CPCB64G1/40
Inventor 陈明阳张兴国叶东东杨灵芝刘旭辉龙军卢国权魏延明
Owner BEIJING INST OF CONTROL ENG