Adaptive Cruise Control Driver Target Selection
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Solution Overview
Problem
Existing adaptive cruise control (ACC) systems do not allow drivers to directly select a target vehicle or lane, leading to potential vehicle accidents and inconvenience when the system's detected information differs from the driver's intent.
Innovation Solution
A control method and system that enables drivers to select or change a target vehicle or lane for ACC using a user interface, allowing the vehicle to follow or change lanes based on driver input, with automatic control of speed and steering to maintain safety and convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If the ACC system automatically detects and selects target vehicles or lanes using front detecting sensors, then the system can maintain predetermined speed and reduce driver stress, but the detected information may not align with driver intent leading to potential accidents
Solution Approach 1:
A user interface acts as an intermediary between the driver and the ACC system. The interface displays detected target vehicles and lanes, allowing the driver to review and select from the system's automatic detections rather than the system acting completely autonomously. This mediator approach maintains automation benefits while ensuring driver intent alignment through direct selection capability.
Solution Approach 2:
The system provides visual feedback by displaying the target vehicles and lanes detected by the front detecting sensors on the user interface. This feedback loop allows the driver to see what the system has automatically identified, verify it matches their intent, and make corrections if needed. The feedback mechanism bridges the gap between automatic detection and driver intent.
2Reliability
If the driver can manually select target vehicles or lanes, then driver intent alignment improves, but the system complexity and operational steps increase
Solution Approach 1:
The user interface serves multiple functions: it displays detected target vehicles, shows available lanes, receives driver selection input, and communicates system status. By making the interface multi-functional, the patent avoids adding separate complex subsystems for each function, thereby reducing overall system complexity while still enabling manual selection capability.
Solution Approach 2:
The system performs automatic detection of target vehicles and lanes first, presenting the results to the driver for selection. This self-service approach means the system does the heavy lifting of identification, and the driver only needs to review and confirm or correct the selection. The burden of complex processing is on the system, not the driver, reducing operational complexity.
3Ease of operation
If the ACC system maintains predetermined speed without accelerator pedal input, then driving convenience improves, but vehicle accidents may occur when other vehicles are present
Solution Approach 1:
The system performs preliminary detection of target vehicles and lanes using front detecting sensors before the driver needs to take action. By pre-identifying relevant objects and paths, the system prepares potential target selections that the driver can then choose from. This preliminary action allows the convenience of automation while giving the driver time to review and correct if needed, preventing accidents before they occur.
Solution Approach 2:
The ACC system dynamically adjusts its operation based on driver input. When the driver selects a target vehicle or lane through the interface, the system transitions from purely automatic speed maintenance to a mode that incorporates driver-selected targets. This dynamic adaptability allows the system to maintain convenience while responding to driver intent to avoid collisions.
Data Source
AI summary
Provided are a control method and system for a host vehicle. The control method in which the host vehicle has adaptive cruise control (ACC) includes selecting a lane or another vehicle as a target lane or a target vehicle for the ACC according to selection of a driver; when the lane is selected, controlling the ACC to cause the host vehicle to travel in the selected target lane; and when the other vehicle is selected, controlling the ACC to cause the host vehicle to follow the selected target vehicle, wherein the controlling includes changing the lane when the target lane or a lane of the target vehicle does not correspond to a lane of the host vehicle.