Patent ID: 11897698
Assignee: DAIFUKU CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC B  H | IPC B

Claim 0:
1. An article transport facility provided with an article transport vehicle that travels along a travel path and transports an article, the article transport facility comprising:
a transport vehicle control system configured to control the article transport vehicle;
wherein the article transport vehicle comprises:
a travel motor to drive a wheel of the article transport vehicle;
a power supply unit to supply power to the travel motor;
a regenerative resistor to receive supply of regenerative power produced during regeneration of the travel motor;
a temperature sensor to detect a temperature of the regenerative resistor; and
a switch disposed on an electrical connection path between the power supply unit and the travel motor, and configured to shut off power supply from the power supply unit to the travel motor, and
wherein the transport vehicle control system, in a case where the temperature sensor detects that the temperature of the regenerative resistor is greater than or equal to a first temperature set to a higher temperature than a steady temperature range which is a temperature range of a steady state prescribed in advance, restricts a travel speed of the article transport vehicle to less than or equal to a restrictive speed prescribed in advance, and
wherein the transport vehicle control system, in a case where the temperature sensor detects that the temperature of the regenerative resistor is greater than or equal to a second temperature set to a higher temperature than the first temperature, disconnects the connection between the power supply unit and the travel motor with the switch.