Vehicle cooperative adaptive cruise control method based on variable time gap and interval strategy
A technology of adaptive cruise and control methods, which is applied to control devices, vehicle components, input parameters of external conditions, etc., can solve the problems of unsatisfactory performance of CTH strategy, no multi-vehicle acceleration information, and no vehicle communication delay. , to achieve the effect of improving road capacity, improving traffic efficiency and ensuring driving safety.
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[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.
[0040] like figure 1 As shown, the present invention provides a vehicle cooperative adaptive cruise control method based on a variable time gap (Variable Time Gap, VTG) spacing strategy. Specifically include the following steps:
[0041] The current CACC vehicle n uses radar and on-board sensors to detect the position of the adjacent preceding vehicle n+1, such as figure 2 shown. If the distance between two cars Δx n,n+1 Less than the V2V communication range, communicate with vehicle n+1, if it can communicate, then vehicle n+1 is a CACC vehicle, and obtain the position, speed and acceleration information of vehicle n+1, otherwise, vehicle n+1 is a non-CACC vehicle or Considered a non-CACC vehicle.
[0042] If the vehicle in front is not within the communication range...
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