Patent ID: 7634339

Claim:
A drive assist device for a vehicle, comprising: vehicle travel information detecting means for detecting travel information of a vehicle; preceding vehicle information detecting means for recognizing a preceding vehicle and detecting the preceding vehicle information; target yaw rate calculating means for, when vehicle speed is in a previously set first vehicle speed region, calculating a yaw rate to be made a target for the vehicle based on the travel information and the preceding vehicle information; first steering control amount calculating means for calculating a first steering control amount to follow up the preceding vehicle based on the yaw rate made the target; target steering angle calculating means for, when the vehicle speed is in a previously set second vehicle speed region, calculating a steering angle to be made a target for the vehicle based on the travel information and the preceding vehicle information; and second steering control amount calculating means for calculating a second steering control amount for following up the preceding vehicle based on the steering angle made the target, wherein the first vehicle speed region is greater than the second vehicle speed region in speed.