| 摘要 |
PURPOSE:To prevent the unbalance of braking force from occurring when symmetrical wheels are on a road surface where their friction factors are different, by reducing the extent of brake fluid pressure in both of these symmetrical wheels together, and constituting differential motion between these symmetrical wheels to be restricted in addition, in the case where one side of these wheels is locked. CONSTITUTION:A controller bearing the above caption prevents any wheel lock from occurring by controlling actuators 17a and 17c interposingly installed in pipe lines 12 and 14 in two brake systems 11a and 11b so as to reduce the extent of brake fluid pressure by an antiskid control circuit 18 at time of the wheel lock. In this case, in this antiskid circuit 18, there is provided with a circuit part 18a or a simultaneous decompressing device, closing an inflow valve 19a and opening an outflow valve 20a in the actuator 17a when one side of front wheels is locked, on the basis of a signal out of wheel speed sensors 26a and 26b detecting each speed of right and left front wheels 1 and 2, and reducing the brake fluid pressure to these symmetrical front wheels 1 and 2 together. In addition, a viscous coupling 13 is installed between front wheels 9a and 9b.
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