Lateral Interference Prevention for Vehicle Pre-Deviation Control
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Solution Overview
Problem
Existing advanced driver assistance systems struggle to effectively handle unexpected lateral interferences such as sudden crosswinds or sloping roads, leading to frequent or sudden requests for driver intervention, reduced customer satisfaction, and safety risks due to potential lane departures.
Innovation Solution
A lateral interference prevention module that calculates a pre-deviation quantity and path for a vehicle before encountering lateral interference, using a processor and communication interface to determine a pre-deviation direction and quantity based on interference and vehicle parameters, planning a path to minimize actual deviation within a preset threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lane keeping subsystem detects lateral deviation and requests driver takeover, then the vehicle safety is improved, but the customer satisfaction deteriorates due to frequent or sudden requests
Solution Approach 1:
The system performs preliminary action by calculating and applying a pre-deviation quantity before the vehicle reaches the lateral interference position. The controller determines a pre-deviation path and adjusts the steering angle in advance to compensate for upcoming lateral interferences such as crosswinds or sloping roads, preventing excessive lateral deviation before it occurs rather than reacting after detection
Solution Approach 2:
The system applies preliminary anti-action by introducing a counteracting pre-deviation quantity that opposes the expected lateral interference effect. The controller calculates the lateral acting force from interference parameters and vehicle characteristics, then applies an equal and opposite steering correction in advance to neutralize the anticipated deviation, preventing the harmful effect before it manifests
2Reliability
If the vehicle reacts to lateral interference after detection, then the lateral deviation is corrected, but the response time is insufficient leading to frequent driver takeover requests
Solution Approach 1:
The system determines whether the current vehicle position is within a starting distance from the lateral interference position. If within this distance, the controller applies the maximum pre-deviation quantity; if beyond, it applies a minimum recommended value. This time-based differentiation ensures adequate response time by initiating correction earlier when the interference is anticipated
Solution Approach 2:
The system dynamically adjusts the pre-deviation quantity based on real-time vehicle position relative to the lateral interference location. The controller continuously monitors vehicle position and modifies the steering correction magnitude according to the distance remaining before the interference, optimizing the response timing and magnitude adaptively
Data Source
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AI summary
The present invention relates to a lateral interference prevention module and method for a vehicle. This module includes a memory, a processor, and a communication interface which is configured to be communicatively connected to a related system of the vehicle. This module is configured to: obtain lateral interference-related information; obtain vehicle-related information; determine a pre-deviation direction based on direction information of a lateral interference, and obtain a pre-deviation quantity by means of querying a comparison table or calculation based on parameter information of the lateral interference and the vehicle-related information, where the comparison table reflects a correspondence between the parameter information of the lateral interference or a lateral acting force calculated from the parameter information, a vehicle speed of the vehicle, and the pre-deviation quantity, and the calculation refers to calculating the pre-deviation quantity based on the lateral acting force; and plan a pre-deviation path based on the obtained pre-deviation quantity and the pre-deviation direction, where planning the pre-deviation path includes determining a starting distance from a position of the lateral interference and a deviation trajectory within the starting distance.