Abstract: An identifier setting system disclosed herein includes a plurality of control devices, a communication line, and an activation line. In a case where an identifier setting section of a control device, which is one of the plurality of control devices, determines that an identifier of the control device is not set, a monitoring section acquires identifiers output from the plurality of control devices, and an activation control section controls the activation line so as to stop another control device, which does not output the identifier. The identifier setting section sets an identifier different from the identifiers acquired by the monitoring section as the identifier of the control device. The activation control section controls the activation line so as to activate the other control device, which does not output the identifier.

Abstract: A monitoring device includes a first detection block, a second detection block, and a monitoring unit. Each of the first detection block and the second detection block includes one or more voltage detectors that detect voltages across power storage cells. The monitoring unit includes a complement processor that, when a circuit in the first detection block breaks down and the first detection block fails to transmit the states of the power storage cells to the monitoring unit, complements the states of the power storage cells that have not been acquired from the first detection block, based on the states of the power storage cells detected in the second detection block.

Abstract: A monitoring system includes: a first monitor that receives, from a first output terminal, a voltage detected by a voltage detector and information on a circuit failure; a second monitor that receives, from a second output terminal, an abnormal voltage signal detected by the voltage detector; and a vehicle controller that electrically disconnects a driving motor from an electricity storing unit. When a circuit failure occurs in one circuit of a circuit on a side of the first output terminal and a circuit on a side of the second output terminal and a circuit failure does not occur in the other circuit, and the electricity storing unit is normal, the vehicle controller connects the driving motor with the electricity storing unit.

Abstract: A monitoring system includes: a first monitor that receives, from a first output terminal, a voltage detected by a voltage detector and information on a circuit failure; a second monitor that receives, from a second output terminal, an abnormal voltage signal detected by the voltage detector; and a vehicle controller that electrically disconnects a driving motor from an electricity storing unit. When a circuit failure occurs in one circuit of a circuit on a side of the first output terminal and a circuit on a side of the second output terminal and a circuit failure does not occur in the other circuit, and the electricity storing unit is normal, the vehicle controller connects the driving motor with the electricity storing unit.

Abstract: A monitoring device includes a first detection block, a second detection block, and a monitoring unit. Each of the first detection block and the second detection block includes one or more voltage detectors that detect voltages across power storage cells. The monitoring unit includes a complement processor that, when a circuit in the first detection block breaks down and the first detection block fails to transmit the states of the power storage cells to the monitoring unit, complements the states of the power storage cells that have not been acquired from the first detection block, based on the states of the power storage cells detected in the second detection block.