Control device and control method for vehicle

Abstract

In control over a vehicle, inter-vehicle communication information of a preceding vehicle that runs ahead of the vehicle is acquired, follow-up running control for causing the vehicle to follow the preceding vehicle is executed on the basis of the inter-vehicle communication information, and, during the follow-up running control, a parameter used in the follow-up running control is determined on the basis of a condition in which the inter-vehicle communication information is acquired.

Description

technical field [0001] The present invention relates to a control device and a control method for a vehicle. Background technique [0002] In vehicles in recent years, a control device that assists the driver's driving operation during vehicle running has been developed in order to improve driving ease during vehicle running, reduce the burden of driver's driving operation, and further improve vehicle driving. safety. [0003] For example, in the rear-end collision prevention system described in Japanese Patent Application Publication No. 2005-132338 (JP-A-2005-132338), wireless communication between vehicles is allowed, and the preceding vehicle communicates the predicted emergency brake conditions, and the host vehicle, which has received information from the preceding vehicle, maintains the brake system in a brake actuation standby state. In this way, when the driver of the host vehicle performs the braking operation, the host vehicle starts braking immediately, so it i...

AI Technical Summary

Problems solved by technology

[0004] However, when traveling information is exchanged between vehicles by wireless communication, the traveling information of another vehicle may not be properly acquired depending on the communication condition

Therefore, when vehicle travel control is performed on the premise that travel information is exchanged between vehicles through wireless communication, when travel information of another vehicle cannot be properly acquired, it may be difficult to properly perform travel control

For example, when the inter-vehicle time between the host vehicle and the preceding vehicle (that is, the time elapsed when the front end of the host vehicle reaches the same position as the current position of the rear end of the preceding vehicle) is set and thereafter the host vehicle When driving in a state where the traveling information of the preceding vehicle is acquired through inter-vehicle communication by the preceding vehicle, when it is difficult to obtain the traveling information of the preceding vehicle due to a communication failure, etc., it becomes difficult to maintain proper following travel

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