Rear Collision Seat Positioning Using Camera and LiDAR/Radar
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Solution Overview
Problem
Current driver assistance systems are inadequate in protecting drivers from rear collisions, lacking effective methods to assess collision possibilities and minimize damage.
Innovation Solution
A driver assistance system equipped with sensors (cameras and LiDAR/radar) that determine the possibility of a rear collision, adjust the seat position, and open the door to facilitate the driver's escape, using a controller to process data and trigger appropriate responses based on the severity of the impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the seat is adjusted to a preset position in response to a rear collision being expected, then driver protection is improved, but the response time and complexity of the system increase
Solution Approach 1:
The seat is adjusted to a preset protective position before the collision occurs, based on prediction from sensor data. This preliminary action prepares the driver for impact by positioning the seat optimally, reducing injury risk while maintaining system reliability without excessive complexity.
Solution Approach 2:
The system continuously monitors sensor data from cameras and LiDAR/radar to detect rear objects and predict collision risk. This feedback loop enables real-time decision-making for seat adjustment, balancing driver protection with manageable system complexity through automated control algorithms.
2Measurement precision
If multiple sensors (camera and LiDAR/radar) are used to determine collision possibility, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines camera imaging data with LiDAR/radar detecting data to determine collision possibility. This merging of complementary sensor modalities improves measurement precision by cross-validating object detection and characterization, while the integrated approach manages overall system complexity through unified processing.
Solution Approach 2:
The sensor system serves multiple functions: object detection, speed measurement, size estimation, and collision risk assessment. By designing the sensor suite to fulfill multiple roles simultaneously, the patent improves measurement precision across different parameters while avoiding the need for separate specialized systems for each function.
3Object-affected harmful factors
If the door is opened and seat is separated to facilitate escape when impact exceeds preset value, then driver safety is improved, but device complexity and response time requirements increase
Solution Approach 1:
When collision impact is predicted to exceed a preset threshold, the system preemptively opens the door and separates the seat from the vehicle body before the collision occurs. This preliminary anti-action counteracts the harmful effects of high-impact collision by creating escape pathways and isolating the driver from the main impact zone.
Solution Approach 2:
The seat is designed to be separable from the vehicle body, allowing it to be detached and moved with the driver through the opened door. This segmentation enables the escape function by dividing the driver-seat assembly from the main vehicle structure, reducing the complexity of the escape mechanism compared to moving the entire vehicle.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively minimizes driver injury by adjusting the seat and facilitating escape in the event of a rear collision, reducing the risk of harm through precise impact assessment and timely action.
Implementation Method 1
a second sensor selected from a group consisting of a radar sensor and a Light Detection And Ranging (LiDAR) sensor and mounted to the host vehicle, the second sensor configured to have a field of sensing in rear of the host vehicle and obtain rear detecting data
Implementation Method 2
a second sensor selected from a group consisting of a radar sensor and a Light Detection And Ranging (LiDAR) sensor and mounted to the host vehicle, the second sensor configured to have a field of sensing in rear of the host vehicle and obtain rear detecting data
Data Source
AI summary
The apparatus for assisting driving of host vehicle includes a first sensor mounted to the host vehicle and having a field of view in rear of the host vehicle, the first sensor to obtain rear image data; a second sensor selected from a group consisting of a radar sensor and a LiDAR sensor and mounted to the host vehicle, the second sensor to have a field of sensing in rear of the host vehicle and obtain rear detecting data; and a controller to process the rear image data and the rear detecting data. The controller may be determine a possibility of a collision of a rear object located at the rear of the host vehicle based on processing the rear image data and the rear detecting data, and to adjust a seat of the host vehicle to a preset position based on an expected collision of the rear object.