Automatic Parking Brake Control for Post-Accident Vehicle Securing
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Solution Overview
Problem
Existing vehicle security systems are inadequate in securing vehicles after accidents, especially utility vehicles, as they require manual intervention and may not activate the parking brake in all accident scenarios, such as rear-end collisions, which can endanger rescue forces and delay recovery efforts.
Innovation Solution
A vehicle security system with a control unit that assesses vehicle data, including rotary location and axle load, to autonomously switch the parking brake into the braking position, even in the absence of emergency braking or airbag activation, ensuring the vehicle is secured post-accident.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual intervention is used to secure the vehicle after an accident, then the vehicle can be secured, but time is lost and rescue operations are delayed
Solution Approach 1:
The control unit is pre-programmed with accident detection algorithms that continuously monitor vehicle data. Upon detecting an accident pattern, the system automatically engages the parking brake without waiting for manual intervention, thus securing the vehicle in advance of rescue operations
Solution Approach 2:
The vehicle security system performs self-assessment through the control unit analyzing vehicle data from sensors. The system autonomously determines when security measures are needed and executes them without requiring external human judgment or action
2Object-affected harmful factors
If the parking brake is not automatically engaged after an accident, then the vehicle may move causing harm, but manual braking requires human intervention that may not be available
Solution Approach 1:
The control unit continuously receives feedback from vehicle data sensors and automatically adjusts the parking brake state based on accident detection algorithms. This closed-loop system eliminates the need for manual operation while ensuring appropriate security measures are taken
Solution Approach 2:
The system replaces manual mechanical braking operation with an electronically controlled parking brake system. The control unit processes sensor data and actuates the parking brake through electronic control, substituting human mechanical action with automated electronic-mechanical integration
3Reliability
If existing security systems only activate after emergency braking or airbag deployment, then system complexity is reduced, but they fail to secure vehicles in accidents without these events
Solution Approach 1:
The control unit is designed with multi-functional accident detection capabilities, analyzing various vehicle data parameters to identify different accident scenarios. This universal detection approach covers all accident types without requiring separate specialized systems for each scenario
Solution Approach 2:
The system detects accidents by monitoring changes in vehicle data parameters such as deceleration, orientation, and impact forces. By establishing threshold values for these parameters, the system can identify accidents without requiring complex pattern recognition or multiple specialized sensors
Data Source
AI summary
A vehicle security system is provided for a vehicle having a braking system that includes a parking brake, the parking brake being capable of being switched between a driving position and a braking position. The vehicle security system is configured to secure the vehicle after an accident. The vehicle security system comprises a control unit configured to ascertain an accident of the vehicle and to switch the parking brake of the vehicle into the braking position in response to ascertaining an accident of the vehicle, and a sensor configured to capture and make available first vehicle data that represent a rotary location of the vehicle. The control unit is configured to carry out the ascertainment of an accident on the basis of the first vehicle data.