Boots – shoes – and leggings
Patent
1986-05-02
1988-08-16
Lall, Parshotam S.
Boots, shoes, and leggings
123494, 324422, 340635, 340644, 36443111, 364481, G06F 1520, G01R 3102
Patent
active
047648848
ABSTRACT:
A control unit for use in a vehicle includes a failure detecting apparatus for detecting failures of solenoids which are used for various kinds of controls of the vehicle. The failure detecting apparatus includes a solenoid driving circuit which sequentially supplies currents to the solenoids, and includes an input circuit which receives an output signal from each solenoid which operates normally. When a solenoid doesn't operate normally, no output signal is returned. Therefore, a control circuit of the apparatus detects the absence of the output signal from such solenoid and thereby determines that this solenoid is defective. When the failure of a solenoid is thus detected, the control circuit outputs an alarm signal to the alarm indicator through the alarm driving circuit, the alarm signal identifying the defective solenoid. A light emitting diode corresponding to the defective solenoid may then be lit to visually indicate the failure.
REFERENCES:
patent: 3340465 (1967-09-01), Clark
patent: 4586144 (1986-04-01), Fukumoto
patent: 4599696 (1986-07-01), Takahashi
patent: 4634842 (1987-01-01), Payne
Lall Parshotam S.
Suzuki Jidosha Kogyo Kabushiki Kaisha
Teska Kevin J.
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