CONTROL MEANS, IN-VEHICLE PROGRAM REWRITING DEVICE EQUIPPED WITH SAME, AND IN-VEHICLE PROGRAM REWRITING METHOD

摘要

The present invention improves work efficiency by quickly and reliably performing rewriting of a program. This control means, which is provided with a communication controller (2) having a communication area and a normal-control controller (3) having a normal-control area, is installed on a vehicle. The control means stores an update program, which is transferred via an external communication means (N) from an external server (1) to the vehicle, in the communication controller (2). In addition, upon determining that updating is possible on the basis of a stop operation of a key switch (13), the control means transfers the update program stored in the communication controller (2) to the normal-control controller (3) for rewriting.