Vehicle Deceleration Control Using V2V Lane Change Feedback
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Solution Overview
Problem
Existing vehicle control systems struggle to reliably detect lane changes by preceding vehicles in adjacent lanes, leading to inadequate collision determination and deceleration control.
Innovation Solution
A vehicle control device that sets a preceding vehicle in an adjacent lane as a tracking target when specific conditions are met, executes a deceleration control for the own vehicle, and acquires lane change information through vehicle-to-vehicle communication to adjust the deceleration control accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If millimeter wave radar or camera sensor is used to detect preceding vehicles, then collision determination can be performed, but detection reliability deteriorates when preceding vehicles are at the edge of the angle of view
Solution Approach 1:
The patent introduces V2V communication as an intermediary mechanism to transfer lane change information directly from the preceding vehicle. This mediator bypasses the limitations of radar and camera sensors, providing reliable lane change detection even when the preceding vehicle is at the edge of the angle of view where sensor detection becomes unreliable.
Solution Approach 2:
The system establishes a feedback loop where the preceding vehicle actively transmits lane change information through V2V communication to the own vehicle. This feedback mechanism ensures that the own vehicle receives accurate lane change intent information, enabling reliable collision determination and appropriate deceleration control.
2Reliability
If deceleration control is executed early to prevent collision, then collision prevention capability is improved, but unnecessary deceleration occurs when lane change does not actually happen
Solution Approach 1:
The system uses V2V communication to establish a feedback mechanism where the own vehicle receives real-time lane change information from the preceding vehicle. This feedback allows the control unit to execute deceleration only when actual lane change is confirmed, avoiding unnecessary deceleration while maintaining early collision prevention capability.
Solution Approach 2:
The system performs preliminary preparation by establishing the V2V communication channel and monitoring lane change information in advance. When lane change information is received, the deceleration control is executed at an early timing, achieving both early collision prevention and accurate control by base on confirmed lane change intent.
Data Source
AI summary
To enable appropriate execution of a deceleration control, provided is a control device comprising a setting unit configured to sets a first vehicle ahead of an own vehicle in an adjacent, as a target that has a sign of lane change, when a state of the first vehicle and a second vehicle ahead of the first vehicle satisfy a predetermined condition, a control unit configured to executes a deceleration control, when the setting unit set the first vehicle as the target, and an acquisition unit configured to acquires an information whether or not the first vehicle starts lane change. The control unit is configured to terminates the deceleration control when the acquisition unit acquires information that the first vehicle does not start lane change, while continues the deceleration control when the acquisition unit does not acquires information that the first vehicle does not start lane change.