KETEP 세계에너지시장정보

1.A vehicle and signal lamp cooperative control method based on LTE-V2X communication technology is characterized by comprising a vehicle and a signal lamp cooperative control method. A fuel vehicle is defined as C, a pure electric vehicle is marked E, and a hybrid vehicle is marked with H. Police car, ambulance or ambulance mark priority level of performing official business is 3. Privacy level marks for private cars or special cases of urban life guarantee transport vehicles, emergency transactions, or special cases are 2. Other common vehicle priority levels are labeled 1. The vehicle information is acquired by LTE-V2X communication modules in the LTE-V2X vehicle-mounted terminal, the vehicle speed is acquired through the wheel speed sensor, and the position information, the intersection distance and the passing time of the vehicle are obtained through the CAN V2X bus communication module, and vehicle speed and signal lamp LTE phase timing control are achieved according to the vehicle and signal lamp cooperative control method. The method includes the following steps. Start: When the vehicle travels into the control area of the intersection 200 meter, the vehicle is started with the signal lamp cooperative control system. The first Steps: information acquisition. The intersection traffic signal lamp phase and timing information, the vehicle type information, the vehicle priority information, the vehicle speed information, the intersection distance, the vehicle position information and the vehicle queue passage time are estimated. 2nd: Priority Level 3 discrimination. The priority level 3 vehicle should preferentially pass through the intersection, the priority level 3 can adjust the phase of the lane signal lamp where the vehicle is located to the green light state, and the estimated passing time is modified when the vehicle is matched. When a plurality of lanes each have a priority 3 vehicle, the vehicles passing through the crossing distance are sequentially passed and preferentially pass through vehicles near the intersection, the green light is matched, the estimated passing time is changed, and the phase of the signal lamp is modified in time after the safety is passed, so that other lane priority 3 vehicles are ensured to pass. 3rd: Priority Level 2 discrimination. When no priority 3 vehicles exist, the number of the vehicles with the priority levels 2 of each lane is calculated, and the phase of each signal lamp is adjusted according to the principle that the priority level 2 vehicle number is multiple. 4th: Energy-saving traffic discrimination. After the priority level discrimination is completed, the number of the lane fuel automobiles, the hybrid electric vehicles and the pure electric vehicles is calculated, and the lane phases of the fuel automobiles and the hybrid electric vehicles are preferentially changed into green light. 5th: Safety prewarning discrimination. When the vehicle is in an emergency condition, the automatic signal lamp emits safety early warning broadcasting, and when the front vehicle of the vehicle drives an intersection, the lane is automatically converted into a red light state until the vehicle is driven out of the control area. 6th: Economy speed discrimination. The optimal vehicle speed is selected according to the number of the lane vehicle types, the optimal vehicle speed is broadcast for each vehicle of each lane control area, and the vehicle which does not meet the vehicle speed requirement is sent to prompt the driver to timely correct the vehicle speed. At the end: when the vehicle drives away from the intersection 200 m control area, the vehicle and signal lamp cooperative control system is automatically finished, and the vehicle-mounted man-machine interaction interface prompt.