Multi-column re-linkage vehicle group control circuit and multi-column re-linkage vehicle group

The invention is applicable to the technical field of multi-train reconnection of motor train units, and provides a multi-column reconnection train unit control circuit and a multi-column reconnection train unit, the control circuit comprises a first activation relay and a second activation relay which are respectively arranged in cabs at two ends of a motor train unit, and further comprises a first time-delay relay and a second time-delay relay; the first time-delay relay and the second time-delay relay are different in control time-delay time; wherein the first time-delay relay and the second time-delay relay are in interlocking connection through respective normally-closed contacts; after interlocking, the normally-closed contacts of the first time-delay relay and the second time-delay relay are connected with the positive electrode of the control power supply of the corresponding cab through the normally-open contacts of the first activation relay and the second activation relay. According to the inventio