Method for reliably operating a motor vehicle

Details Method for reliably operating a motor vehicle Method for reliably operating a motor vehicle

1990-07-12

1992-06-02

Lall, Parshotam S.

Boots, shoes, and leggings

123479, F02B 300

Patent

active

051193000

ABSTRACT:
Sensors for motor vehicles emit a base signal when the variable which they measure takes on a base value. For example, a road-speed transducer supplies no pulses when either the vehicle is at standstill or when the sensor is defective. A method for providing a reliable operation of a motor vehicle includes the step of starting a substitute/emergency-function immediately when only the base signal is received from the sensor. If it is later determined that the base signal was only emitted because the measured variable took on its base value, then the substitute/emergency-function is again reversed. By starting a substitute/emergency-function basically always when a checked sensor emits no signal, it is ensured that safety measures are taken as rapidly as possible.

REFERENCES:
patent: 4506338 (1985-03-01), Danno et al.
patent: 4615321 (1986-10-01), Haefner et al.
patent: 4759212 (1988-07-01), Sawada et al.
patent: 4780826 (1988-10-01), Nakano et al.
patent: 4835671 (1989-05-01), Sato et al.
patent: 4928518 (1990-05-01), Tamura

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