| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide program rewriting method and system which efficiently execute rewriting of a program of a control device connected to a network and do not lead to high cost increase in one node. <P>SOLUTION: A charging station 5 transmits a rewriting program for a battery control program to an in-vehicle charger control device 4. The in-vehicle charger device control device 4 having received the rewriting program creates a division program A after having received a certain amount of the rewriting program, transmits the division program A to an EPS control device 2a, creates a division program B after having saved a certain amount of the rewriting program again, and transmits the division program B to a motor control device 2b. Then, when a battery control device 1 is ready to rewrite the battery control program, the EPS control device 2a transmits the division program A, and the motor control device 2b transmits the division program B to the battery control device 1, respectively. The battery control device 1 rewrites the battery control program corresponding to the received division programs each time the respective programs are received. <P>COPYRIGHT: (C)2013,JPO&INPIT |
