| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electronic controller in which plural CPUs efficiently monitor each other. <P>SOLUTION: An electronic controller 1 includes a main CPU 11 and a sub-CPU 12. The first CPU 11 uses a test value acquired by an MTEST acquisition unit 31 to calculate an operation value at an MTESTn operation unit 32. The operation value is transmitted to the sub-CPU 12. The sub-CPU 12 restores the test value from the operation value with a sub comparison unit 43. The sub-CPU 12 acquires a test value in the same way as the main CPU 11, and determines that the main CPU 11 is operating normally when the restored test value matches the test value acquired by the sub-CPU. <P>COPYRIGHT: (C)2012,JPO&INPIT |
