PROBLEM TO BE SOLVED: To provide a technique that is not affected by an inclination of a road the road surface even at low speed.SOLUTION: Upon applying driving torque, drive shaft (DS) twisting oscillation occurs in a state where a tire 16 is gripped, and in a state where the tire is skidded (road surface μstate), twisting of a DS spring is released by tire skidding, and the DS twisting oscillation disappears. When the DS twisting oscillation occurs, an oscillation mode made up of engine block (E/G) back-and-forth resonance) and DS twisting resonance appears on an E/G block 10 and the spring, and when the DS twisting oscillation disappears, single oscillation of the E/G back-and-forth resonance appears. By checking the oscillation mode of each portion, a determination of the road surface is made.SELECTED DRAWING: Figure 1

    【課題】路面傾斜の影響を受けず、かつ、速度の影響を受けず、たとえ低速であったとしても高精度に路面を判定し得る技術を提供する。【解決手段】駆動トルク印加時、タイヤ16がグリップした状態ではドライブシャフト(DS)捩れ振動が発生し、タイヤがスリップした状態(路面μmax状態)ではタイヤ滑りによりドライブシャフト(DS)ばねの捩れが開放されドライブシャフト(DS)捩れ振動が消滅する。ドライブシャフト(DS)捩れ振動発生時は、エンジン(E/G)ブロック10、ばね上にエンジン(E/G)ブロック前後共振(E/G前後共振)とドライブシャフト(DS)捩れ共振の複合した振動モードが現れ、ドライブシャフト(DS)捩れ振動消滅時はエンジン(E/G)前後共振の単振動が現れる。各部位の振動モードを確認することで路面判定する。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    ROAD SURFACE DETERMINATION DEVICE


    Additional title:

    路面判定装置


    Contributors:

    Publication date :

    2018-10-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



    ROAD SURFACE DETERMINATION DEVICE AND ROAD SURFACE DETERMINATION METHOD

    NAKAMURA KAZUKI / SUNAGO SOJIRO / UEISHI ISAO et al. | European Patent Office | 2023

    Free access

    ROAD SURFACE CONDITION DETERMINATION METHOD AND ROAD SURFACE CONDITION DETERMINATION DEVICE

    MASAGO TAKESHI / ISHII KEITA | European Patent Office | 2019

    Free access

    ROAD SURFACE STATE DETERMINATION METHOD AND ROAD SURFACE STATE DETERMINATION DEVICE

    ISHII KEITA / MASAGO TAKESHI / GOTO TAKATO | European Patent Office | 2021

    Free access

    ROAD SURFACE CONDITION DETERMINATION METHOD AND ROAD SURFACE CONDITION DETERMINATION DEVICE

    ISHII KEITA / MASAGO TAKESHI / GOTO TAKATO | European Patent Office | 2019

    Free access