| CPC H02J 7/0013 (2013.01) [A01D 34/78 (2013.01); H01M 10/46 (2013.01); H01M 10/486 (2013.01); H02J 7/00045 (2020.01); H02J 7/0047 (2013.01); H02J 7/0063 (2013.01); H02J 7/007182 (2020.01); H02J 7/007194 (2020.01); H02P 23/14 (2013.01); A01D 34/90 (2013.01); A01D 2101/00 (2013.01); H01M 2010/4278 (2013.01); H01M 2220/30 (2013.01)] | 16 Claims |
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1. A system comprising:
a battery pack including:
a battery;
a first interface (i) including a first positive terminal, a first negative terminal, and a first communication terminal and (ii) configured to be alternatively connected to a first type electric apparatus or a second type electric apparatus;
a first memory storing first data and/or second data, the first data identifying the first type electric apparatus, the second data identifying the second type electric apparatus, the first type electric apparatus being compatible with the battery pack, the second type electric apparatus being incompatible with the battery pack; and
a first controller configured to:
transmit battery data from the first communication terminal, the battery data identifying a type of the battery pack;
receive electric apparatus data from the first communication terminal, the electric apparatus data identifying a type of an electric apparatus connected to the first interface;
transmit a permission signal from the first communication terminal at least based on (i) the first data including the type of the electric apparatus identified by the electric apparatus data, or (ii) the second data excluding the type of the electric apparatus identified by the electric apparatus data, the permission signal allowing the electric apparatus connected to the first interface to receive a discharge from the battery; and
transmit a prohibition signal from the first communication terminal based on (i) the first data excluding the type of the electric apparatus identified by the electric apparatus data, or (ii) the second data including the type of the electric apparatus identified by the electric apparatus data, the prohibition signal forbidding the electric apparatus connected to the first interface to receive the discharge from the battery,
an electric work machine including:
a motor configured to receive an electric power to thereby rotate,
a second interface (i) including a second positive terminal, a second negative terminal, and a second communication terminal and (ii) configured to be connected to the first interface;
a current path configured to electrically connect the second positive terminal or the second negative terminal to the motor;
a switching element on the current path;
a manual switch configured to be manually operated by a user;
a second memory storing third data and/or fourth data, the third data identifying a first type battery pack, the fourth data identifying a second type battery pack, the first type battery pack being compatible with the electric work machine, the second type battery pack being incompatible with the electric work machine; and
a second controller configured to:
transmit the electric apparatus data from the second communication terminal;
receive the battery data from the second communication terminal;
determine to allow the battery pack connected to the second interface to discharge to the electric work machine based on (i) the third data including the type of the battery pack identified by the battery data, or (ii) the fourth data excluding the type of the battery pack identified by the battery data;
turn on the switching element based on (i) the second controller having determined to allow the discharge, and (ii) the second controller having received the permission signal from the second communication terminal, and (iii) the manual switch having been or being manually operated; and
turn off the switching element based on (i) the second controller having not determined to allow the discharge or (ii) the second controller having received the prohibition signal from the second communication terminal.
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