Vehicle control apparatus and vehicle control method

A vehicle control apparatus comprising a plurality of control units communicable with each other, wherein

• the plurality of control unit includes a host unit and a plurality of lower units managed by the host unit, and
• the host unit includes a microprocessor and a memory connected to the microprocessor, wherein
• the microprocessor is configured to function as:
• a specification unit configured to specify a lower unit used for executing a predetermined operation among the plurality of lower units when received a signal for instructing any one of the plurality of lower units to start the predetermined operation of the vehicle control apparatus;
• a first command unit configured to output an activation request command to the lower unit specified by the specification unit;
• and
• a second command unit configured to output an operation start command of the predetermined operation to the lower unit the specification unit after a predetermined time elapsed since the activation request command is output by the first command unit.

A vehicle control method of a vehicle control apparatus comprising a plurality of control units communicable with each other, the vehicle control method comprising:

• specifying a lower unit used for executing a predetermined operation among the plurality of lower units when received a signal for instructing any one of the plurality of lower units to start the predetermined operation of the vehicle control apparatus;
• outputting an activation request command to the lower unit used for executing the predetermined operation;
• and
• outputting, after a predetermined time elapsed since the activation request command is output, an operation start command of the predetermined operation to the lower unit used for executing the predetermined operation.