Measuring and testing – Simulating operating condition – Marine
Patent
1991-03-15
1993-05-04
Williams, Hezron E.
Measuring and testing
Simulating operating condition
Marine
731173, 341120, G01M 1900, H03M 110
Patent
active
052070913
ABSTRACT:
A control system with an abnormality detecting device for use in a motor vehicle. The control system comprises a microcomputer coupled through a switching circuit and an analog-to-digital converter to a sensor for sensing an operating state of the motor vehicle and also to a reference voltage generating circuit. The switching circuit performs a switching operation between an analog signal from the sensor and a predetermined reference voltage signal from the reference voltage generating circuit to supply the analog-to-digital converter with one of the analog signals which is analog-to-digital-converted in the analog-to-digital converter. The microcomputer has a first decision function which decides that the output signal of the analog-to-digital converter to be coupled to the sensor is out of a predetermined range, and further has a second decision function which decides that the output signal of the analog-to-digital converter to be coupled to the reference voltage generating circuit is different from a predetermined value. In accordance with the decision result, the second decision function decides that the sensor or analog-to-digital converter circuit is in an abnormal state. This arrangement can selectively and adequately detect the malfunction of the sensor or analog-to-digital converter.
REFERENCES:
patent: 4175427 (1979-11-01), Blanke
patent: 4325251 (1982-04-01), Kenegae
patent: 4546646 (1985-10-01), Takahashi
patent: 4571725 (1986-02-01), Nagashima et al.
patent: 4700563 (1987-10-01), Iwata et al.
patent: 4780826 (1988-10-01), Nakaro et al.
patent: 4928242 (1990-05-01), Suzuki
patent: 4973974 (1990-11-01), Suzuki
patent: 4989570 (1991-02-01), Kuribara et al.
Baba Takaaki
Ito Masao
Morimoto Kazunobu
Shibata Hiroshi
Dombroske George
Nippondenso Co. Ltd.
Williams Hezron E.
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