Antiskid control apparatus for vehicles

Abstract

Abstract AN ANTISKID CONTROL APPARATUS FOR VEHICLES, COMPRISING A WHEEL ANGULAR DECELERATION DETECTING CIRCUIT ADAPTED TO CONVERT THE SPEED OF ROTATION OF WHEELS INTO A DC VOLTAGE AND DETECT A WHEEL ANGULAR DECELERATION SIGNAL IN ACCORDANCE WITH SAID DC VOLTAGE, A VEHICLE BODY DECELERATION DETECTING CIRCUIT ADAPTED TO DETECT A VEHICLE BODY DECELERATION SIGNAL, A WHEEL ROTATION DETECTING CIRCUIT ADAPTED TO DETECT WHETHER OR NOT THE WHEELS ARE ROTATING, AND A COMPARATOR CIRCUIT PROVIDED AT THE OUTPUT SIDE OF SAID WHEEL ANGULAR DECELERATION DETECTING CIRCUIT AND VEHICLE BODY DECELERATION DETECTING CIRCUIT TO THEREBY COMPARE THE OUTPUTS OF SAID TWO CIRCUITS, WHEREIN IF THE DIFFERENCE BETWEEEN THE WHEEL ANGULAR DECELERATION SIGNAL AND THE VEHICLE BODY DECELERATION SIGNAL GOES ABOVE A PREDETERMINED VALUE, THE BRAKE FORCE APPLIED TO THE WHEELS IS RELIEVED BY THE OUTPUT OF SAID COMPARATOR AND IN CASE THE WHEELS ARE STOPPED FROM ROTATING DURING THE TIME WHEN THE BRAKE FORCE IS RELIEVED, THE BRAKE FORCE RELIEVED STATE IS MAINTAINED BY THE OUTPUT OF SAID WHEEL ROTATION DETECTING CIRCUIT UNTIL THE WHEELS BEGIN ROTATING. THUS, WITH THE PRESENT APPARATUS, AN OPTIMUM BRAKE FORCE CAN ALWAYS BE OBTAINED EVEN UNDER SUCH CONDITIONS THAT THE COEFFICIENT OF FRICTION BETWEEN THE WHEELS AND THE ROAD SURFACE IS GREATLY VARIED, WHEREBY THE VEHICLE CAN BE EFFICIENTLY AND SAFETLY BRAKED.

Inventors

• 👤 Noriyoshi Ando

Bibliographic Details