ABNORMALITY DETECTING DEVICE FOR TRAVELLING CONDITION DETECTING SENSOR FOR VEHICLE AND VEHICLE BEHAVIOUR CONTROL DEVICE

PROBLEM TO BE SOLVED: To improve the accuracy in detection of failure such as the fixing of an output value by judging the abnormality of a sensor when a second estimating means estimates the abnormality on the basis of a sensor output value in a period longer than a change component sampling period...

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Bibliographische Detailangaben
Hauptverfasser:	TSUYAMA TOSHIAKI, TANAKA HIROHISA, KATAYAMA YOSHIO, KATO KAZUHIRO, EKI HIROZUMI
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK PERFORMING OPERATIONS PHYSICS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TESTING TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve the accuracy in detection of failure such as the fixing of an output value by judging the abnormality of a sensor when a second estimating means estimates the abnormality on the basis of a sensor output value in a period longer than a change component sampling period, after the estimation of abnormality by a first sensor abnormality estimating means on the basis of the change component of the output value. SOLUTION: The abnormality of a sensor is estimated when each power change ΔPβ, ΔPr, ΔPy of an angle of sideslip β, a yaw rate(r) and lateral acceleration (y) are over the predetermined threshold values ΔPβ0, ΔPr0, ΔPy0, and the failure that a sensor output value is fixed to an approximately constant value in one direction is judged when a condition that the changing amount of the sensor value not relative to the operation of each power change ΔPβ, (r), (y)is less than a predetermined value (or not changed) is kept for a predetermined time T20 within a predetermined time T10 after this estimation of the abnormality.