ROAD SURFACE STATE DETECTING DEVICE

PURPOSE:To specify the magnitude of unevenness of a road surface unequivocally over a wide range from reflection intensity by sending two wave motion signals which differ in frequency to the road surface and judging the road surface state from the detection result of the intensity ratio of two refle...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAMANE HAJIME, MIYASHITA IZUMI
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PERFORMING OPERATIONS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To specify the magnitude of unevenness of a road surface unequivocally over a wide range from reflection intensity by sending two wave motion signals which differ in frequency to the road surface and judging the road surface state from the detection result of the intensity ratio of two reflected waves. CONSTITUTION:The intensity values (P1 and P2) of the reflected waves of the two wave motion signals which are obtained by two sensor parts 1 and 2 and differ in frequency are inputted to a divider 31 to find the ratio P2/P1 of the both. The reflection intensity ratio P2/P1 obtained by the divider 31 is sent out to a CPU 32, which calculates the height of unevenness of the road surface by using a time table stored in a memory. Then the calculated value outputted by the CPU 32 is sent out to a CPU for suspension control angle control to control the setting angles of suspensions.