Abstract: A control apparatus having an electronic timer including a plurality of flip-flop circuits connected in multiple stages in cascade. Outputs are taken from different stages of the electronic timer and the separate outputs are utilized to produce individual control timing signals which serve for controlling at least one device in accordance with the timing specific to the individual control timing signals.

Abstract: In an automatic brake controller having a vehicle velocity detector for detecting vehicle velocity and a wheel velocity detector for detecting wheel velocity, a failure detecting system is provided for the vehicle velocity detector and the wheel velocity detector. A comparator which makes a comparison between the vehicle velocity signal obtained from said vehicle velocity detector and the wheel velocity signal obtained from said wheel velocity detector generates a predetermined output signal when the difference between both the output signals of said detectors exceeds a predetermined value, and a logical circuit is responsive to said output signal from said comparator to provide a failure signal when a signal representative of a normal transit condition is being generated.

Abstract: A vehicle controlling device wherein an output signal proportional to vehicle velocity obtained from a vehicle velocity detector and an output signal proportional to wheel velocity obtained from a wheel velocity detector are to be compared by a comparator and the slip state of the wheel is to be detected from the result of the comparison, thereby to control a brake mechanism, characterized in that an adder circuit is provided which adds an output signal proportional to a predetermined wheel velocity at a low vehicle running speed to the output signal obtained from the wheel velocity detector and that the output signal of the adder circuit and the output signal from the vehicle velocity detector are compared by the comparator to ensure accurate brake control at all vehicle speeds.