DEVICE FOR DIAGNOSING CONDITION OF AUTOMATED BRAKE SYSTEM DIRECTLY ON AUTOMOBILE Russian patent published in 2003 - IPC

FIELD: transport engineering; diagnostic facilities. SUBSTANCE: invention relates to built-in diagnostic devices of automobile and it can be used for revealing troubles of brake system and transmission members. Proposed device contains wheel angular velocity pickup, antilocking system computing unit and indication unit. Novelty is that angular velocity pickup is made in form of two stators, each installed at extreme links of wear pair circuit. Stators are spaced relative to wheel axis through angle proportional to angular pitch of rotor teeth engaging simultaneously with measuring elements of opposite stators through like parts of alternating teeth. Relative geometric location of stators provides obtaining of matched signals at no clearances in circuit of wear pairs in joints of suspension and wheel and getting of error signals if beyond the limit clearances in wear pair circuit in suspension and wheel joints are present. EFFECT: improved accuracy of measurements of parameters under checking and provision of safety in running, increased braking efficiency and higher reliability of automobile. 3 dwg