| 摘要 |
PROBLEM TO BE SOLVED: To make a motor control device small-sized and a sequence circuit, and to provide an electric car control device comprising a sequence circuit which enables changing the device into various kinds of electric car control systems. SOLUTION: In an electric car control device, made up of motor control devices 1a to 1d, which output drive control signals to a group of switching elements controlling the drives of electric motors and which are each provided with an on-off switch to be opened or closed, based on whether or not driving is allowed, and a main circuit switch 7, which operates when the drive is not permitted, each of the on-off switches is constituted of an electronic switching element 13a to 13d and, made up of each input terminal 14a to 14d to which both ends of the contact of each electronic switching element 13a to 13d are connected, a relay device 19 which controls the main circuit switch 7, a low- voltage DC power supply 17 which drives the relay device 19 and a connecting line 18 which makes the low-voltage DC power supply 17 which is connectably by a arbitrary made of connection to the relay device 19 via each input terminal 14a to 14d, a sequence circuit 15 is provided between each electronic switching element 13a to 13d and the main circuit switch 7. |
