Dynamic traffic light

A vehicle signalling display device, to be mounted on an automotive vehicle so that signalling lights of said device are visible for drivers of following vehicles, comprising:

• a) means for controlling said signalling lights in accordance with speed of the vehicle and regardless of operation and position of accelerator pedal of the vehicle;
• and
• b) means for turning on a distinct arrangement of a number of said signalling lights for indicating different ranges of the speed of the vehicle;
• c) means for turning on at least one red light (LR5) of said signalling lights steady without flashing and regardless of braking while the speed of the vehicle is between a first predetermined speed and zero km/h and while the vehicle is stopped;
• wherein said red light (LR5) is also turned on automatically without flashing if at least the drive wheels of the vehicle are blocked by applying brake on the vehicle for preventing creation of input pulses to said device by a speed sensor means of the vehicle while the vehicle is in motion at any speed;
• d) means for turning on at least one orange (LO1) of said signalling lights while the speed of the vehicle is less than a second predetermined speed and greater than said first predetermined speed, and only while the brake is not being applied on the vehicle, in order to indicate low speed of the vehicle
• e) means for turning on at least one green light (LG1) of said signalling lights only when the speed of the vehicle is greater than or equal to said second predetermined speed while the brake is not being applied on the vehicle, in order to indicate forward motion of the vehicle with constant speed.

A vehicle signalling display device to be mounted on a vehicle in such way that signalling lights of said device are visible for drivers of following vehicles, comprising:

• a) timebase generator means for generating equal time intervals;
• b) counter means (IC1) for counting input pulses to said device during each of the equal time intervals;
• wherein, at the end of a time interval, a value that is present in said counter means corresponds to speed of the vehicle at the end of the time interval;
• c) memory means (IC3) for storing a value that is present in said counter means at the end of a time interval;
• wherein, a value that is stored in said memory means at the end of a time interval is used as reference value at the end of each of the equal time intervals;
• d) means for realizing a predetermined speed of the vehicle regardless of operation and position of accelerator pedal of the vehicle, in order to turn on a red light (LR5) of said signalling lights steady without flashing regardless of braking, whenever said device realizes that speed of the vehicle is less than the predetermined speed based upon the result from said timebase generator means, counter means and memory means.

A vehicle signalling display device to be mounted on an automotive vehicle in such way that signalling lights of said device are visible for drivers of following vehicles, comprising:

• a) timebase generator means for generating equal time intervals;
• b) counter means (IC1) for counting input pulses to said device during each of the equal time intervals;
• wherein, at the end of a time interval, a value that is present in said counter means corresponds to speed of the vehicle at the end of the time interval;
• c) memory means (IC3) for storing a value that is present in said counter means at the end of a time interval;
• wherein, a value that is stored in said memory means at the end of a time interval is used as reference value at the end of each of the equal time intervals;
• d) means for realizing that said reference value is equal to, less than or greater than a predetermined speed for determining different ranges of the speed of the vehicle;
• and
• e) means for turning on a red light (LR5) of said signalling lights (IC14, IC15b, Q5, relay 3, relay 5) steady without flashing regardless of position and operation of brake pedal of the vehicle, whenever said device realizes that said reference value is less than a predetermined speed.

A vehicle signalling display device to be mounted on an automotive vehicle in such way that signalling lights of said device are visible for drivers of following vehicles, comprising:

• a) timebase generator means for generating equal time intervals;
• b) counter means (IC1) for counting input pulses to said device during each of the equal time intervals;
• wherein, at the end of a time interval, a value that is present in said counter means corresponds to speed of the vehicle at the end of the time interval;
• c) memory means (IC3) for storing a value that is present in said counter means at the end of a time interval;
• wherein, a value that is stored in said memory means at the end of a time interval is used as reference value at the end of each of the equal time intervals;
• d) means for realizing that said reference value is equal to, less than or greater than a predetermined speed for determining different ranges of the speed of the vehicle;
• e) first comparator means (IC2) for comparing a value that is present in said counter means with said reference value at the end of each of the equal time intervals;
• wherein at the end of each of the equal time intervals said first comparator means generates at least one pulse in order to indicate that a value that is present in said counter means is equal to, less than or greater than said reference value;
• f) subtracter means (IC4, IC5) for subtracting, at the end of each of the equal time intervals, a value that is present in said counter means from said reference value or for subtracting said reference value from a value that is present in said counter means, in order to provide a remainder value which is equivalent to the magnitude of difference between said reference value and a value that is present in said counter means;
• g) second comparator means (IC6) for comparing a predetermined value with said remainder value;
• said second comparator means generates at least one pulse in order to indicate that said remainder value is equal to, less than or greater than said predetermined value;
• h) gate means (IC7-c) for generating an A pulse at the end of a time interval for indicating decrease, at least by said predetermined value, in a value that is present in said counter means at the end of the time interval relevant to said reference value;
• wherein said gate means generates said A pulse if, at the end of the time interval, said gate means is simultaneously fed (I) by an (IC7-a) pulse resulted from a comparison performed by said first comparator means indicating that the value that is present in said counter means at the end of the time interval is less than said reference value, and (II) by an (IC8-b) pulse resulted from a comparison performed by said second comparator means indicating that said remainder value is equal to or greater than said predetermined value;
• and
• i) said counter means is reset to zero at the end of each of the equal time intervals, in order to count said input pulses to said device during next time interval;
• wherein, at the end of a time interval, a value that is present in said counter means is stored in said memory means before resetting said counter means to zero if, at the end of the time interval, said (IC8-b) pulse is generated.

A vehicle signalling display device to be mounted on an automotive vehicle in such way that signalling lights of said device are visible for drivers of following vehicles, comprising:

• a) means for controlling said signalling lights in accordance with speed of the vehicle and regardless of operation and position of accelerator pedal of the vehicle;
• b) means for turning on a distinct arrangement of a number of said signalling lights includes red, orange or amber, and green lights, in order to indicate different ranges of the speed of the vehicle;
• c) means for flashing first and second red lights (LR3, LR4) of said signalling lights every time that the speed of the vehicle is reduced at least by a standardized value while brake is being applied on the vehicle and speed sensor means of the vehicle is generating input pulses to said device;
• wherein said red lights (LR3, LR4) flash faster and glow brighter as the magnitude of deceleration of the vehicle increases by braking;
• d) means for turning on third red light (LR5) of said signalling lights steady without flashing and regardless of braking while the speed of the vehicle is less than a first predetermined speed;
• e) means for turning on first and second orange lights (LO1, LO2) of said signalling lights while the speed of the vehicle is less than a second predetermined speed and greater than said first predetermined speed, and the brake is not being applied on the vehicle, in order to indicate low speed of the vehicle;
• f) means for flashing said first and second orange lights (LO1, LO2) and third orange light (LO3) of said signalling lights every time that the speed of the vehicle is greater than said first predetermined speed and the speed is reduced at least by the standardized value while the brake is not being applied on the vehicle, in order to indicate the rate of deceleration of the vehicle without braking;
• g) means for turning on first and second green lights (LG1, LG2) of said signalling lights only when the speed of the vehicle is grater than or equal to said second predetermined speed while the brake is not being applied on the vehicle, in order to indicate forward motion of the vehicle with constant;
• and
• h) means for flashing third green light (LG3) of said signalling lights when the speed of the vehicle is greater than said second predetermined speed and the speed is increased at least by the standardized value.

A vehicle signalling display device to be mounted on an automotive vehicle in such way that signalling lights of said device are visible for drivers of following vehicles, comprising:

• a) pulse generator means (IC12, IC13) for generating a pulse at the end of equal time intervals;
• b) delay pulse generator means for creating three pulses from each pulse generated by said pulse generator means:
• an decision pulse (IC9-a), immediately followed by an update pulse (IC9-b), immediately followed by an clear pulse (IC10-a, IC10-b);
• c) counter means (IC1) for counting input pulses to said device during each of the equal time intervals;
• wherein, at the end of a time interval, a value that is present in said counter means is equal to speed of the vehicle at the end of the time interval;
• d) memory means (IC3) for storing a value that is present in said counter means at the end of a time interval;
• wherein a value stored in said memory means is used as reference value at the end of each of the equal time intervals;
• e) means for realizing that said reference value is equal to, less than or greater than a predetermined speed for determining different ranges of the speed of the vehicle;
• f) first comparator means (IC2) for comparing a value that is present in said counter means with said reference value at the end of each of the equal time intervals;
• wherein, at the end of a time interval, outputs of said first comparator mean in conjunction with said decision pulse either result in generating an (IC7-a) pulse indicating decrease in a value that is present in said counter means at the end of the time interval relevant to said reference value, or result in generating an (IC7-b) pulse indicating increase in the value that is present in said counter means at the end of the time interval relevant to said reference value;
• g) subtracter means (IC4, IC5) for subtracting, at the end of each of the equal time intervals, a value that is present in said counter means from said reference value, or for subtracting said reference value from a value that is present in said counter means in order to provide a remainder value which is equivalent to the magnitude of difference between said reference value and a value that is present in said counter means;
• h) second comparator means (IC6) for comparing a predetermined value with said remainder value at the end of each of the equal time intervals;
• wherein, at the end of a time interval, said second comparator means results in generating an (IC8-b) pulse indicating that said remainder value is greater than said predetermined value or indicating that the speed of the vehicle is varied by said predetermined value;
• i) first gate means (IC7-c), second gate means (IC7-d) and third gate means (IC9-d);
• j) said first gate means is enabled to produce an A pulse at the end of a time interval in order to indicate decrease, at least by said predetermined value, in a value that is present in said counter means relevant to said reference value if, at the end of the time interval, said first gate means is simultaneously fed by said (IC7-a) pulse, and by said (IC8-b) pulse;
• k) said second gate means is enabled to produce an B pulse at the end of a time interval for indicating increase, at least by said predetermined value, in a value that is present in said counter means relevant to said reference value if, at the end of the time interval, said second gate means is simultaneously fed by said (IC7-b) pulse and by said (IC8-b) pulse;
• and
• l) said third gate means updates said reference value to a value that is present in said counter means at the end of a time interval if, at the end of the time interval, said third gate means is simultaneously fed by said update pulse and by said (IC8-b) pulse;
• and
• m) said clear pulse resets said counter means to zero at the end of each of the equal time intervals, in order to count said input pulses to said device during next time interval.