Electric working vehicle and regenerative charging assistance system

An electric working vehicle comprising:

• a battery;
• a traveling vehicle body including the battery;
• wheels provided at left and right sides of the traveling vehicle body;
• a first motor/generator to drive the wheels using electric power supplied from the battery;
• a second motor/generator to drive, using electric power supplied from the battery, a power take-off (PTO) shaft for connection with a working device;
• a motor controller configured or programmed to control driving of the first motor/generator and the second motor/generator;
• and
• an input interface to receive input of an instruction to enter a regenerative mode in which at least one of the first motor/generator or the second motor/generator is driven regeneratively to charge the battery;
• wherein
• the regenerative mode includes a towed regenerative mode in which the traveling vehicle body is towed to rotate the wheels to regeneratively drive the first motor/generator, and a PTO regenerative mode in which the PTO shaft is rotated by external power to regeneratively drive the second motor/generator;
• and
• the input interface is configured to receive input of the instruction to enter the towed regenerative mode or the PTO regenerative mode.