Method for controlling power supply system of mobile body, power supply system of mobile body, and energy storage apparatus

A power supply system of a mobile body comprising:

• a plurality of energy storage apparatuses that are connected to a mobile body load and are connected in parallel to each other;
• and
• a control unit,
• wherein
• the energy storage apparatus includes an energy storage device, a current cut-off device that is connected to the energy storage device in series, and a management device,
• the control unit executes:
• first processing of permitting or prohibiting cut-off of supply of current with respect to the respective energy storage apparatuses based on a combination of normality and abnormality of the respective energy storage apparatuses such that the current cut-off device of at least one of the energy storage apparatuses is brought into an energized state;
• and
• second processing of bringing the current cut-off device into a cut-off state when the management device of the energy storage apparatus, which is permitted to cut off the supply of current, detects abnormality of the energy storage apparatus at a point of time that the cut-off of the supply of current is permitted, or when the management device detects an abnormality of the energy storage apparatus after the cut-off of the supply of current is permitted.

A power supply system of a mobile body comprising:

• a plurality of energy storage apparatuses that are connected to a mobile body load and are connected in parallel to each other,
• wherein
• the energy storage apparatus includes an energy storage device, a current cut-off device that is connected to the energy storage device in series, and a management device,
• any one of the management device executes:
• first processing of permitting or prohibiting cut-off of supply of current with respect to the respective energy storage apparatuses based on a combination of normality and abnormality of the respective energy storage apparatuses such that the current cut-off device of at least one of the energy storage apparatuses is brought into an energized state;
• and
• second processing of bringing the current cut-off device into a cut-off state when the management device of the energy storage apparatus, which is permitted to cut off the supply of current, detects an abnormality of the energy storage apparatus at a point of time that the cut-off of the supply of current is permitted, or when the management device detects an abnormality of the energy storage apparatus after the cut-off of the supply of current is permitted.

An energy storage apparatus used in a power supply system of a mobile body, the energy storage apparatus comprising:

• an energy storage device;
• a current cut-off device that is connected in series with the energy storage device;
• and
• a management device,
• wherein the management device executes:
• third processing of detecting normality and abnormality of the energy storage apparatus and transmitting a detection result of the normality or the abnormality to an external device;
• fourth processing of receiving a permission signal permitting cut-off of the supply of current or a prohibition signal that prohibits cut-off of the supply of current from the external device;
• and
• second processing of bringing the current cut-off device into a cut-off state in a case where the abnormality of the energy storage apparatus is detected at a point of time that the permission signal is received or in a case where the abnormality of the energy storage apparatus is detected after the permission signal is received.