Vehicle Cut-In Prediction for Front Vehicle Deceleration Control
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Solution Overview
Problem
Existing vehicle control systems struggle to effectively manage deceleration control when a vehicle cuts in front of a leading vehicle, as they are designed to respond to cut-ins between the own vehicle and the leading vehicle, rather than anticipating deceleration due to a vehicle cutting in front of the leading vehicle.
Innovation Solution
A vehicle control apparatus that includes a front vehicle recognition unit, a cut-in detection unit, and a deceleration prediction unit to anticipate deceleration in the leading vehicle based on speed differences and inter-vehicle distances, adjusting thresholds according to vehicle class and number, and performs appropriate acceleration or deceleration control to mitigate potential deceleration impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the vehicle control apparatus is configured to perform deceleration control based on a vehicle that cuts in between the own vehicle and a front vehicle, then the own vehicle can respond to cut-in situations, but it cannot cope with vehicles that cut in front of the front vehicle
Solution Approach 1:
The deceleration prediction unit performs preliminary prediction of front vehicle deceleration before the own vehicle needs to respond. By calculating the speed difference between the cut-in vehicle and front vehicle, and measuring the inter-vehicle distance, the system predicts deceleration in advance, enabling the travel control unit to prepare appropriate acceleration suppression or deceleration control.
2Device complexity
If the cut-in speed threshold and cut-in distance threshold are kept fixed, then the control logic is simple, but it cannot adapt to different traffic conditions and vehicle densities
Solution Approach 1:
The cut-in speed threshold and cut-in distance threshold are made dynamic rather than fixed. The system adjusts these thresholds based on the number of vehicles in the front vehicle queue - when more vehicles are detected, the thresholds are adjusted to account for higher traffic density and reduced spacing, enabling adaptive response to varying traffic conditions.
3Reliability
If the system predicts deceleration based on speed difference and inter-vehicle distance, then it can anticipate front vehicle deceleration, but it requires additional detection and calculation capabilities
Solution Approach 1:
The front vehicle recognition unit and cut-in detection unit serve multiple functions - they not only detect the presence of vehicles but also provide speed and distance data for deceleration prediction. The same sensors and processing units used for basic collision avoidance are leveraged for predictive deceleration control, reducing the need for separate dedicated components.
Data Source
AI summary
The vehicle control apparatus includes a cut-in detection unit for detecting a cut-in vehicle from an adjacent lane in front of a front vehicle traveling in front of an own vehicle, a deceleration prediction unit for predicting whether deceleration occurs in the front vehicle, and a travel control unit for performing acceleration suppression control or deceleration control of the own vehicle when it is predicted that deceleration occurs.