Vehicular accessory diagnostic system

Details Vehicular accessory diagnostic system Vehicular accessory diagnostic system

2006-11-14

2006-11-14

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

Reexamination Certificate

active

07136766

ABSTRACT:
A control unit receives a sensor output and performs signal processing on the sensor output to produce an internal signal. The control unit produces internal data by adding time data to an internal signal and transmits the internal data to an in-vehicle network. A diagnostic unit receives the internal data from the in-vehicle network and stores the internal data in an internal data storing device. The diagnostic unit also receives a measurement signal produced based on the sensor output. The diagnostic unit produces external data by adding time data containing time at which the second timer resets a time count when an ignition switch is closed and stores the external data. The diagnostic unit reproduces the internal data and the external data and extracts the internal signal and the measurement signal. The diagnostic unit displays or stores the internal signal and the measurement signal according to the time data.

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