A vehicle control system has an ECU for controlling an actuator and a sensor
ECU
that receives a crankshaft signal of a vehicle engine. These ECUs exchange information
via an intra-vehicle communication network for attaining distributed functions.
The sensor ECU calculates a crankshaft angle on the basis of a received camshaft
signal and crankshaft signal and outputs the calculated crankshaft angle to a TCM
ECU. The TCM ECU determines operation timing of an igniter on the basis of the
received crankshaft angle and outputs the operation timing of the igniter to an
ignition ECU. The ignition ECU controls the igniter on the basis of the received
timing. As a result, temporal deviation between the crankshaft angle and the control
timing of the actuator is suppressed.