Front-vehicle path-following system and method thereof

A front-vehicle path-following system, applied to a host vehicle, comprising:

• a transceiver interface coupled to sensing devices on the host vehicle and configured to receive multiple types of host-vehicle information detected by the sensing devices and multiple types of front-vehicle information received by the sensing devices, wherein the multiple types of front-vehicle information are transmitted by a front vehicle;
• and
• at least one processor coupled to a controller of the host vehicle and the transceiver interface and configured to:
• perform a front-vehicle path-estimating step to generate a front-vehicle estimation path based on the multiple types of host-vehicle information;
• perform a path-matching step to generate a front-vehicle wheel speed path based on the multiple types of front-vehicle information and determine whether a current coordinate system of the host vehicle overlaps an adjacent coordinate system on the front-vehicle estimation path, wherein when the current coordinate system overlaps the adjacent coordinate system, a location of the host vehicle currently located on the front-vehicle wheel speed path is matched as a path following start point and a following path decision is made based on the path following start point and states of the front-vehicle wheel speed path and the front-vehicle estimation path;
• and
• perform a path switching step to control the controller to switch a following path of the host vehicle based on the following path decision, such that the host vehicle follows the front-vehicle wheel speed path or the front-vehicle estimation path.