Electronic control device
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United States of America Patent
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Jul 23, 2024
Grant Date -
Sep 14, 2023
app pub date -
Apr 16, 2021
filing date -
Jul 6, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
There is provided an electronic control device that performs distributed processing using a plurality of microcomputers and can perform highly accurate time synchronization between the microcomputers with less delay without hindering arithmetic processing of each microcomputer. The device includes a plurality of microcomputers, and a waveform generation circuit connected between a master microcomputer serving as a time synchronization source and a slave microcomputer that performs time synchronization, among the plurality of microcomputers, wherein the master microcomputer outputs a reset signal synchronized with time to the waveform generation circuit, the waveform generation circuit outputs a waveform signal corresponding to a change in time of the master microcomputer, to the slave microcomputer, and the slave microcomputer measures a voltage value of the waveform signal and detects time corresponding to the measured voltage value.
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