| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 340932000 | Pacing (e.g., vehicle keeps pace with sequentially activated lights) | 13 |
| 20080238721 | TRAFFIC CONTROL SYSTEM - A system and method for moving vehicular traffic in a single lane through a control zone requires creation of a control protocol. The protocol establishes a spacing distance “s” and a speed “v” for each vehicle in the control zone. A computer then controls movement of a visible signal through the control zone in accordance with the established protocol. Electronic regulators monitor the distance “s” between the signal and the vehicle, and the system alarms when “s” becomes greater than a predetermined distance “d”. | 10-02-2008 |
| 20100134320 | Optimization of Vehicular Traffic Flow through a Conflict Zone - An automatic vehicular traffic flow control technique defines a controlled area, wherein vehicles belonging to different traffic streams contend for occupancy of a conflict zone. A traversal order is computed for the vehicles in the controlled area, wherein the ordered vehicles are assigned to traverse the conflict zone sequentially in accordance with their respective positions in the traversal order. Tracking and tracked vehicles are designated, wherein a respective tracked vehicle immediately precedes each of the tracking vehicles in the traversal order. The tracking vehicles maintain a specified physical relationship with their respective tracked vehicles until the tracked vehicle has traversed the conflict zone. The speed of the traffic streams is increased as necessary so as to achieve a desired throughput through the conflict zone. | 06-03-2010 |
| 20100164753 | Mobile FLOW readout and mobile FLOW sequencer features - An invention regarding traffic management is disclosed. A system that tells motorist how fast to go in order to make it through a traffic signal while it is green serves one or more lanes in one or more directions. A Fast Lane On Warning (FLOW) sequencer is in synchronization with traffic phases sequencer (sequencing Red, Green, Yellow, Left Turn and the like) with both sequencers having service cycle period Pi but with start times of both sequencers offset from one another. The FLOW sequencer outputs data, particularly status of signal or “Signal Phase And Timing: SPAT” through wireless means to a mobile receiver/calculator/readout aboard the approaching vehicle. The receiver/calculator/readout also receives data of its location or whereabouts, particularly its distance to the intersection. The receiver calculator readout processes the two incoming data types considering “distance” and “time left” and gives an output of digital, graphic, audio or the like as to how fast the motorist should go to make it through during green. | 07-01-2010 |
| 20120038491 | TRAFFIC MANAGEMENT DEVICE AND SYSTEM - A smart traffic control device transmits information to approaching vehicles regarding its current and future state enabling vehicles to control their speed to avoid arriving at the traffic control device until it permits the passage of traffic, thus avoiding stopping, idling and reaccelerating when reaching the traffic control device. In other embodiments the traffic control device or systems receives information from vehicles, transmitting it to other vehicles. | 02-16-2012 |
| 20120161982 | Variable Speed Traffic Control System - A variable speed limit sign including a controller and a display operatively coupled to the controller is provided. A traffic control system including a variable speed limit sign and methods of use thereof are also provided. | 06-28-2012 |
| 20120169517 | Driving Assistance Method, On-Board Unit (OBU) Applying the Method and Computer Readable Storage Medium Storing the Method - An on-board unit (OBU) with a driving-assistance function to be installed on a vehicle includes at least one wireless communication unit and a processing unit. The processing unit receives information of at least one first traffic signal and at least one second traffic signal respectively from their RSUs through the at least one wireless communication unit. The first traffic signal is installed at a first intersection, the at least one second traffic signal is installed at a second intersection, and the vehicle is closer to the first intersection than to the second intersection. The processing unit generates a suggested speed range, within which the vehicle may travel to allow the same to pass through the first intersection and the second intersection without stopping, according to the information of at least one first traffic signal and the at least one second traffic and vehicle position information of the vehicle. | 07-05-2012 |
| 20130027224 | Traffic Signal Control System, Design Method and Special Equipment - A traffic signal control method comprises confirming the shortest green light interval; confirming the conflict area of the different traffic flow and the key conflict point position according to the engineering design for road canalization; confirming the longest clear distance si(m) of the traffic tail unit of green light i and the shortest entry distance sj(m) of the traffic head unit of green light j in conflict with green light i; calculating the longest clear time Max{ti} of the traffic tail unit of green light i and the shortest entry time Min{tj} of the traffic head unit of green light j; calculating the shortest green light interval Iij=A+Max{ti}−Min{tj}; confirming the control scheme for the crossing according to the shortest green light interval and sending the control instruction to the traffic signal display device for displaying in real time according to the control scheme. A traffic signal control system and special equipment are also provided. | 01-31-2013 |
| 20140197967 | REAL-TIME VEHICLE SPACING CONTROL - In an embodiment, a system detects when vehicle bunching is about to occur or is already occurring within a given transit system. The system resolves the bunching using an event and tone based system which regulates the arrival and departure times of vehicles at vehicle stops. Also, an embodiment includes a method for receiving location information for a plurality of vehicles along a route, determining a relative distance between a first vehicle of the plurality of vehicles and at least a second vehicle of the plurality of vehicles as a function of the received location information, and generating an action signal for at least one of the plurality of vehicles located on the route, wherein the action signal is in response to the determined relative distance. | 07-17-2014 |
| 20140232561 | VARIABLE SPEED TRAFFIC CONTROL SYSTEM - A variable speed limit sign including a controller and a display operatively coupled to the controller is provided. A traffic control system including a variable speed limit sign and methods of use thereof are also provided. | 08-21-2014 |
| 20150015421 | METHODS AND SYSTEMS FOR DETERMINING INFORMATION RELATING TO THE OPERATION OF TRAFFIC CONTROL SIGNALS - Data indicative of the durations of multiple instances of different phases of a traffic control signal in a given time period is determined. The data is used to obtain data indicative of a distribution of the durations of each phase. The distribution data is used to obtain data indicative of a probability of the traffic control signal having a given phase at one or more future time. The probability data may be used to provide an expected waiting time when arriving at the signal at a future time and/or a speed recommendation for a vehicle approaching the signal. | 01-15-2015 |
| 20150070195 | METHOD AND SYSTEM TO REDUCE BRAKING FOR STOP LIGHTS - A vehicle includes a powertrain, a brake, and a controller configured to anticipate an impending stoplight change, predict a status of a stoplight that will occur when the vehicle arrives at the stoplight, and display the prediction. | 03-12-2015 |
| 20160027301 | TRAFFIC MANAGEMENT DEVICE AND SYSTEM - A smart traffic control device transmits information to approaching vehicles regarding its current and future state enabling vehicles to control their speed to avoid arriving at the traffic control device until it permits the passage of traffic, thus avoiding stopping, idling and reaccelerating when reaching the traffic control device. In other embodiments the traffic control device or systems receives information from vehicles, transmitting it to other vehicles. | 01-28-2016 |
| 20160180710 | DRIVING SUPPORT DEVICE AND DRIVING SUPPORT METHOD | 06-23-2016 |
