Multi-redundancy control circuit realizing double breaking of traction and emergency instructions

Abstract

The invention discloses a multi-redundancy control circuit realizing double breaking of traction and emergency instructions. The multi-redundancy control circuit comprises a first relay module, wherein the two contacts of the first relay module are connected with a second relay module; the second relay module is connected with a third relay module; the second relay module and the third relay module are both connected with an emergency parking module; the emergency parking module is connected with two signal system connecting nodes, wherein the two signal system connecting nodes are connected in parallel; and the two signal system connecting nodes are connected with an traction instruction control loop through a derailing detection sub-circuit. According to the multi-redundancy control circuit realizing double breaking of the traction and emergency instructions, each of a traction instruction control loop and an emergency brake control loop adopts a double-break control mode so that thesafety of the design of an unmanned vehicle circuit can be improved, and the advantage of the double-break control circuit lies in that the circuit can be sufficiently disconnected, an traction instruction can be reliably cut off when necessary, and emergency braking of a train can be reliably applied.

Description

technical field [0001] The invention relates to the field of rail transit circuit control, in particular to a traction emergency command double-break multi-redundant control circuit. Background technique [0002] The existing vehicle traction command and emergency brake command control circuit generally adopts a traction command train line and an emergency brake train line, and the two train lines complete the execution of the traction command and the brake command. [0003] Traction command train line: adopt the principle of single-ended hard-wire output, the hard-wire commands are serially inserted into the logic of driver's cab occupancy, alert button, direction command, all parking brake relief, no power supply for storage, and closed doors, etc., and finally the command The traction command is sent to the traction inverter and the brake control unit to execute the traction command. When any link is disconnected, the train will lose the traction command, and the train wi...

AI Technical Summary

Problems solved by technology

[0004] Disadvantages: In this control mode, if the relay of any one of the nodes fails or is accidentally disconnected, the traction command cannot be issued, resulting in rescue

[0006] Disadvantages: In this control method, if the relay of one of the nodes is connected when it needs to be turned on, it will cause the train to fail to output an emergency braking command, which will cause danger

The fundamental reason is that the single-node disconnection design of the circuit itself does not consider the multiple disconnection design, and the safety level of the train is not high

[0007] In addition, the signal system is controlled by a double-ended serial connection circuit. The failure of any set of nodes connected to the circuit will cause a fault in the train control, and the signal system must be cut off to move the train.

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