VEHICLE-MOUNTED ELECTRONIC CONTROLLER

摘要

When a plurality of applications installed in an electronic controller use the information from the same vehicle-mounted device, repeated acquisition of the information is avoided to prevent a microcomputer resource from being wasted. A vehicle-mounted electronic controller (10) which executes applications (21, 22) by using the data acquired from the same vehicle-mounted device and in which the plurality of applications with different execution periods are installed comprises a storage section for storing the data acquired from the vehicle-mounted device and elapsed time (tb) from the time of acquiring the data and a processing section for comparing the elapsed time (tb) from the data acquisition in the storage section with allowable elapsed time (ta) from the time of acquiring the data till the time of executing the applications by using the data, executing the applications by using the data when the elapsed time (tb) is within the allowable elapsed time (ta), and making a request for the transmission of the data to the vehicle-mounted device to acquire the latest data when the elapsed time (tb) exceeds the allowable elapsed time (ta).