Post-Collision Brake Control Based on Driver Consciousness
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Solution Overview
Problem
Existing secondary collision mitigation systems in vehicles disable the driver's active intervention, failing to consider the impact of the driver's subjective risk-avoidance operations and resulting in suboptimal collision damage mitigation.
Innovation Solution
A method and apparatus for brake control that determines the vehicle's safety state based on collision type and driver consciousness, allowing the vehicle to be braked only when in a safe state and with a non-rational driver, thereby enabling flexible avoidance of secondary collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the existing secondary collision mitigation function directly controls the vehicle to be stopped by braking, then the vehicle can be stopped quickly to avoid secondary collision, but the driver's beneficial subjective risk-avoidance operations are disabled and cannot be implemented
Solution Approach 1:
The system dynamically adjusts the brake control strategy based on real-time assessment of driver consciousness state. When the driver is in a rational state, the system allows driver intervention and does not forcibly brake. When the driver is in a non-rational state, the system activates automatic braking. This dynamic adaptation resolves the contradiction by making the control system flexible rather than fixed.
Solution Approach 2:
The system changes the control parameter (brake intervention level) based on the driver's consciousness state parameter. By monitoring driving parameter information to assess driver state, the system adjusts whether to apply braking force, thereby allowing driver operation when rational and taking control when non-rational, resolving the contradiction between quick stopping and driver capability.
2Reliability
If the existing secondary collision mitigation function blocks the driver's driving operations after collision, then the vehicle can be controlled to stop, but the driver's beneficial subjective risk-avoidance operations are disabled during the risk-avoidance process
Solution Approach 1:
The system continuously monitors driving parameter information to assess the driver's consciousness state and provides feedback control. By evaluating whether the driver is in a rational or non-rational state, the system dynamically determines whether to allow driver operation or activate automatic braking, thus maintaining reliability while preserving driver freedom when appropriate.
Solution Approach 2:
The control system transitions from a static blocked state to a dynamic state where driver operation freedom is adjusted based on real-time assessment of driver consciousness. The system dynamically permits or restricts driver operations depending on whether the driver is rational, resolving the contradiction between reliable avoidance and operational freedom.
3Extent of automation
If the existing secondary collision mitigation function disables the driver's function of active intervention, then the system can fully control the vehicle, but the beneficial subjective risk-avoidance operations performed by experienced drivers cannot be finally implemented
Solution Approach 1:
The system dynamically adjusts the extent of automation based on driver consciousness state. When the driver is rational, the system reduces automation level and allows driver intervention. When the driver is non-rational, the system increases automation level and takes control. This dynamic adjustment resolves the contradiction between system control and driver capability.
Solution Approach 2:
The system changes the automation parameter (level of system control) based on the driver's consciousness state parameter. By monitoring driving parameter information, the system adjusts whether to maintain high automation or allow driver intervention, thereby preserving beneficial driver operations while maintaining system control when necessary.
Data Source
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AI summary
A method for a brake control of a vehicle is provided. This method includes: obtaining a collision type of a current vehicle after the current vehicle is collided; obtaining driving information of the current vehicle according to the collision type; determining whether the current vehicle is in a safe state according to the driving information; obtaining driving parameter information of the current vehicle, and determining a consciousness state of a driver according to the driving parameter information when the current vehicle is determined as being in the safe state, the consciousness state includes a non-rational state and a rational state; controlling the current vehicle to perform a brake operation when the consciousness state is determined as the non-rational state. According to this method, the impact of the driving information of the current vehicle and the consciousness state of the driver on the secondary collision can be comprehensively considered after the collision, so that a problem of disabling of the driver's beneficial subjective risk-avoidance operations can be avoided, the secondary collision can be flexibly and effectively avoided, and the damage to the vehicle due to the collision is alleviated. An apparatus for brake control of a vehicle, a vehicle, a computing and processing device, a computer program and a computer-readable storage medium are further disclosed.