Drive Assist Deceleration Control Driver Steering Intent
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Solution Overview
Problem
Existing drive assisting apparatuses perform deceleration control without considering the driver's intention, leading to cumbersome operations when approaching a forward vehicle.
Innovation Solution
A drive assisting apparatus that includes an inter-vehicle information acquisition unit, a deceleration unit, and a steering detection unit, which performs deceleration control based on the distance to a forward vehicle and stops the control when driver steering is detected, along with an operation information acquisition unit to temporarily suppress deceleration control based on direction indicator operations and steering angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If deceleration control is performed based on inter-vehicle distance, then safety is improved, but driver operation becomes cumbersome when intending to pass
Solution Approach 1:
The system continuously monitors steering angle and direction indicator status as feedback signals to determine driver intention. When steering input or direction indicator activation is detected, the system interprets this as the driver's intention to pass and adjusts deceleration control accordingly, allowing safety-focused deceleration when appropriate while avoiding it when the driver intends to maneuver.
Solution Approach 2:
The deceleration control system dynamically adapts its behavior based on real-time driver inputs. The control characteristics change from active deceleration to suppressed deceleration when steering angle exceeds a threshold or direction indicator is activated, making the system flexible enough to respond to varying driver intentions rather than applying fixed deceleration rules.
2Reliability
If deceleration control is continuously applied, then collision prevention is improved, but unnecessary deceleration occurs when driver intends to steer
Solution Approach 1:
The system uses steering angle and direction indicator status as feedback to distinguish between legitimate collision avoidance scenarios and situations where the driver intends to pass. This feedback mechanism prevents unnecessary deceleration by recognizing driver maneuvers while maintaining collision prevention capability when no passing intention is detected.
Solution Approach 2:
The system preemptively suppresses deceleration control when direction indicator activation or significant steering input is detected, anticipating that the driver intends to pass rather than collide. This preliminary anti-action prevents the harmful effect of unnecessary deceleration before it occurs, while still maintaining safety through continuous monitoring.
Data Source
AI summary
Provided is a drive assisting apparatus which assists follow-up travelling to a forward vehicle including an inter-vehicle information acquisition unit 10 that acquires a distance between a host vehicle and a forward vehicle, a deceleration unit 12 that performs a deceleration control based on the inter-vehicle distance, and a steering information acquisition unit 14 that detects steering by a driver, and the deceleration unit 12 stops the deceleration control, when the steering is detected. Therefore, it is possible to appropriately understand the will of a driver and perform a deceleration control based on the will of the driver.