Vehicular control apparatus arranged for undergoing initial fail

Details Vehicular control apparatus arranged for undergoing initial fail Vehicular control apparatus arranged for undergoing initial fail

1997-11-28

2000-09-12

Dombroske, George

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

731181, G01M 1500

Patent

active

061190640

ABSTRACT:
In a vehicular control apparatus having a bare-chip mounting type vehicular electronic unit and an associated vehicular actuator, a predetermined higher bias voltage (approximately 7 volts higher than a normal bias voltage of approximately 5 volts) is supplied to a micro controller of the electronic unit so as to impose a high stress on the micro controller under a burn-in condition such that the micro controller is exposed to a burn-in high temperature for a burn-in time duration. After the above-described burn-in process, an external initial failure testing purpose program is transmitted to a serial communication circuit of the micro controller so that the micro controller executes instructions of the external initial failure testing purpose program to evaluate an operation of the micro controller to determine whether an initial failure in the micro controller occurs.

REFERENCES:
patent: 5095438 (1992-03-01), Sasaki
patent: 5247446 (1993-09-01), Motz et al.
patent: 5293317 (1994-03-01), Adrain et al.
patent: 5497330 (1996-03-01), Ishida
patent: 5526267 (1996-06-01), Sogawa
patent: 5602738 (1997-02-01), Sasaki
patent: 5787381 (1998-07-01), Sasaki
patent: 5802485 (1998-09-01), Koelle et al.
patent: 5884211 (1999-03-01), Pauli et al.

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