Abstract: A turn signal indicator lamp system for a car including a car speed detection unit, a luminous intensity calculation unit for calculating a luminous intensity around the turn signal indicator lamp on the basis of the car speed detected by the car speed detection unit, a luminous intensity control unit for controlling automatically an irradiated angle of the turn signal indicator lamp. The operation of the turn signal indicator lamp and the irradiated luminous intensity of the turn signal indicator lamp, which are blinked with operation of the hazard warning, are controlled automatically by the luminous intensity calculation unit. The system is also applied to a brake light system and a headlight system for a car.

Abstract: A first threshold value of a fixed amount of vehicle velocity arranged on the lower side of the vehicle velocity is set, and a second threshold value of a fixed amount of vehicle velocity also arranged on the lower side of vehicle velocity, which second threshold is greater than that of the first threshold value. The difference between vehicle velocity at maximum recovery velocity of wheel velocity and the maximum recovery velocity of the wheel velocity is compared with the first and second threshold values, and the next point at which a changeover is made to repressurization of brake fluid is altered in dependence upon the results of the comparison. Accordingly, repressurization of the brake cylinder is controlled in dependence upon the condition of the road surface on which the vehicle is traveling, and more appropriate antiskid braking control can be achieved.

Abstract: An antiskid brake control system includes a supply passageway (16) bypassing a pressure-compensated flow control valve (13), and a check valve (22), which allows flow of brake fluid only toward a wheel cylinder, or a check valve (23), which allows flow of brake fluid only away from the wheel cylinder, is provided inside the supply passageway (16) and arranged in series with an orifice (15). Accordingly, antiskid brake control is such that either slow and fast pressurization modes, a fast depressurization mode and a holding mode or slow and fast depressurization modes, a fast pressurization mode and a holding mode are established. A sudden fluctuation in braking hydraulic pressure can be suppressed by establishing the holding mode when there is a transition from the fast depressurization mode to the fast pressurization mode or from the fast pressurization mode to the fast depressurization mode.