A steering gear clutch pull-in/disconnect state control circuit
A disconnected state and control circuit technology, which is applied in aircraft control, aircraft parts, transportation and packaging, etc., can solve the problems of monitoring circuit not being able to warn in time, safety margin degradation, safety hazards, etc.
Active Publication Date: 2018-09-28
LANZHOU FLIGHT CONTROL
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Problems solved by technology
[0006] Its disadvantages are: the steering gear clutch is the last link to ensure that the autopilot is disengaged and switched to manual driving when the automatic flight control system fails. Control strategy, when the first normally open electronic switch K1 or the second normally open electronic switch K2 has a short-circuit fault, the above-mentioned monitoring circuit cannot give an alarm in time, resulting in a degradation of the safety margin of the clutch disconnection control, resulting in potential safety hazards
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[0015] The present invention will be described in further detail below. see figure 2 , a steering gear clutch pull-in / off state control circuit, comprising a clutch coil 2, a first normally open electronic switch K1, a second normally open electronic switch K2 and a switch circuit 1; an input end of the first normally open electronic switch K1 K1a is connected to the +28V power supply, the control terminal K1c of the first normally open electronic switch K1 is connected to the clutch coil high-end control signal output terminal IN1 of the steering gear controller; the input terminal K2a of the second normally open electronic switch K2 is connected to the +28V power supply ground connection, the control terminal K2c of the second normally open electronic switch K2 is connected with the clutch coil low-end control signal output terminal IN2 of the steering gear controller, the output terminal K2b of the second normally open electronic switch K2 is connected with one end of the ...
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The invention belongs to the steering engine controller design technology and relates to improvement of a steering engine clutch engagement / disengagement state control circuit. The steering engine clutch engagement / disengagement state control circuit is characterized in that a diode D1 is arranged between the output end K1b of a first normally-open electronic switch K1 and the high end of a clutch coil; a first monitor circuit (3) is arranged between the output end K1b of the first normally-open electronic switch K1 and a control terminal K1c; a second monitor circuit (5) is arranged between the control end K2c of a second normally-open electronic switch K2 and the low end of the clutch coil. The steering engine clutch engagement / disengagement state control circuit can solve the problem that the disengagement control safety redundancy of the clutch degrades when the first normally-open electronic switch K1 or the second normally-open electronic switch K2 is in short-circuit fault; thus, the safety hazards are eliminated.
Description
technical field [0001] The invention belongs to the design technology of a steering gear controller, and relates to the improvement of a control circuit for clutch engagement / disengagement of the steering gear controller. Background technique [0002] At present, a control circuit of clutch pull-in / disengage state of a steering gear controller can be found in figure 1 . Including the clutch coil 2, the first normally open electronic switch K1, the second normally open electronic switch K2 and the switch circuit 1; the input terminal K1a of the first normally open electronic switch K1 is connected to the +28V power supply, and the first normally open electronic switch K1 The control terminal K1c is connected to the clutch coil high-end control signal output terminal IN1 of the steering gear controller, the output terminal K1b of the first normally open electronic switch K1 is connected to the high end of the clutch coil 2; the input terminal K2a of the second normally open e...
Claims
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IPC IPC(8): B64C13/00
CPCB64C13/00
Inventor 陈家东赵玉龙杨华关玲玲
Owner LANZHOU FLIGHT CONTROL