Vehicle Collision Control via Driving Direction Alignment
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Solution Overview
Problem
In automated driving systems, collisions can lead to unstable situations due to rotational movements, causing damage and instability, especially at high speeds, as existing technologies lack effective methods to control vehicle orientation and energy transfer during accidents.
Innovation Solution
A method and control unit that adapt the driving direction of the ego vehicle to align with the other vehicle involved in the collision, using sensor data to determine steering and braking signals to minimize rotational movements and maximize overlap, thereby stabilizing the collision and reducing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If automated driving systems perform major interventions in longitudinal/transverse regulation during a collision, then the stability of the collision can be improved, but the complexity of the control system increases
Solution Approach 1:
The control system performs preliminary actions by predicting the collision trajectory and calculating the optimal driving direction adaptation before the actual collision occurs. This allows the system to prepare the steering intervention in advance, ensuring stability during the collision without requiring complex real-time adjustments during the impact event.
Solution Approach 2:
The system changes the driving direction parameter of the ego vehicle to align with the other vehicle's trajectory. By adapting the driving direction parameter before and during the collision, the system achieves stable full-contact collision without requiring complex multi-parameter control, thus resolving the contradiction between collision stability and control system complexity.
2Stability of the object's composition
If the driving direction of the ego vehicle is adapted to align with the other vehicle, then rotational movements during collision can be avoided, but the steering control precision must be increased
Solution Approach 1:
The system replaces complex mechanical steering adjustments with electronic control signals that directly actuate the steering system. By using electronic steering control with precise angle values, the system achieves the required steering alignment precision without mechanical complexity, allowing accurate driving direction adaptation to prevent rotational movements during collision.
3Speed
If emergency braking is initiated in automated driving systems during a collision, then the collision speed can be reduced, but the stopping distance increases
Solution Approach 1:
The system initiates braking actions in advance of the actual collision, during the prediction and trajectory calculation phase. By reducing speed before the impact occurs rather than at the moment of collision, the system achieves lower collision speed while minimizing the additional stopping distance required, as the braking is integrated into the pre-collision preparation sequence.
Data Source
AI summary
A method for controlling an ego vehicle during a collision of the vehicle with another vehicle includes an ascertainment of a driving direction of the other vehicle, a determination of a steering signal for aligning a driving direction of the ego vehicle with the driving direction of the other vehicle and a provision of the steering signal to an interface of a steering unit for steering the ego vehicle.