The technology relates to determining the current state of friction that a vehicle's wheels have with the road surface. This may be done via active or passive testing or other monitoring while the vehicles operates in an autonomous mode. In response to detecting the loss of traction, the vehicle's control system is able to use the resultant information to select an appropriate braking level or braking strategy. This may be done for both immediate driving operations and planning future portions of an ongoing trip. For instance, the on-board system is able to evaluate appropriate conditions and situations for active testing or passive evaluation of traction through autonomous braking and/or acceleration operations. The on-board computer system may share slippage and other road condition information with nearby vehicles and with remote assistance, so that it may be employed with broader fleet planning operations.


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    Title :

    Determining wheel slippage on self driving vehicle



    Publication date :

    2021-03-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    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 / G01S RADIO DIRECTION-FINDING , Funkpeilung / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen



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