Patent ID: 8878488

Claim:
A charge-and-discharge management system that includes a charge-and-discharge connector, a vehicle, an external power supply outside the vehicle, and a charge-and-discharge control device outside the vehicle, and electrically connects said vehicle and said charge-and-discharge control device to enable transfer of electric power between said vehicle and said charge-and-discharge control device, wherein; said vehicle includes: an in-vehicle power supply part comprising an electric storage device, an in-vehicle charge-and-discharge control part which controls transfer of said electric power between said vehicle and said charge-and-discharge control device, and a connection part into which said charge-and-discharge connector is fitted, said charge-and-discharge connector includes: an electric power pathway through which said electric power is transmitted between said in-vehicle power supply part and said charge-and-discharge control device, at least one signal pathway through which a control signal is transmitted to at least one of said in-vehicle charge-and-discharge control part or said charge-and-discharge control device, and a first operating part which is changed at least between a first state and a second state, and said charge-and-discharge connector is configured so that, in a state where said charge-and-discharge connecter and said connection part are electrically connected, said in-vehicle charge-and-discharge control part detects through said at least one signal pathway: a first control signal for permitting either one of a charge operation to said in-vehicle power supply part from said charge-and-discharge control device using a charge-and-discharge control signal transmitted and received between said in-vehicle charge-and-discharge control part and said charge-and-discharge control device, or an electric supply operation to said charge-and-discharge control device from said in-vehicle power supply part using said charge-and-discharge control signal, when said first operating part is in said first state, or a second control signal for permitting another electric supply operation to said charge-and-discharge control device from said in-vehicle power supply part without using said charge-and-discharge control signal, when said first operating part is in said second state.