Vehicle Door Lock Control With Wireless Emergency Power
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing motor vehicle door systems with electric locks face challenges in maintaining operational safety during emergencies, such as power failures, without the complexity and high costs associated with traditional power plug connections or constant recharging of energy stores.
Innovation Solution
A control arrangement that switches to an emergency operating mode using wireless power reception from a mobile device, such as a power bank, to operate the door lock, with features like dual-use power transmission units and user confirmation to prevent unintended discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional power plug connections or constant recharging of energy stores are used to maintain emergency operation, then operational safety during power failures is improved, but device complexity and cost increase
Solution Approach 1:
The power transmission unit is designed to serve dual purposes: in normal operation mode, it wirelessly transmits power to mobile devices (charging station function); in emergency operation mode, it wirelessly receives power from mobile devices to operate the opening drive. This multi-functionality eliminates the need for separate emergency power equipment, reducing device complexity while maintaining operational safety during power failures.
2Reliability
If a dedicated emergency power system is implemented, then operational safety during power failures is improved, but manufacturing cost increases
Solution Approach 1:
The power transmission unit serves both as a charging station for mobile devices during normal operation and as an emergency power receiver during power failures. By making the existing power transmission unit multi-functional rather than adding dedicated emergency power equipment, manufacturing costs are reduced while ensuring operational safety during emergencies.
3Device complexity
If wireless power reception from mobile devices is used in emergency mode, then device complexity is reduced, but power transmission reliability may worsen
Solution Approach 1:
The control arrangement dynamically switches between normal operation mode and emergency operation mode based on the availability of on-board network voltage. In normal mode, the power transmission unit charges mobile devices; in emergency mode, it receives power from mobile devices to operate the opening drive. This dynamic adaptability ensures reliable power transmission by optimizing the direction of power flow according to operational conditions.
4Reliability
If power is continuously available to the opening drive, then operational reliability is improved, but energy loss increases
Solution Approach 1:
The system uses the mobile device's own power source to supply the opening drive during emergency operation, eliminating the need for a separate buffering energy store in the door system. The mobile device serves itself by providing power to the door's opening mechanism when needed, avoiding energy loss associated with maintaining a dedicated buffer while ensuring operational readiness.
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
Ensures reliable and cost-effective motorized door opening during emergencies by utilizing existing mobile device power sources, reducing hardware complexity and avoiding energy loss through buffering.
Implementation Method 1
a power transmission unit, configured to, responsive to the door control unit changing from the normal operating mode to the emergency operating mode, wirelessly receive electric power from a first mobile device and provide the electric power to the door control unit
Data Source
AI summary
A control arrangement for a motor vehicle door supplied with electrical power from a motor vehicle on-board network and including a lock with an electric opening drive for the motorized opening of the motor vehicle lock. The control arrangement has a door control unit for controlling the opening drive and changes from a normal operating mode to an emergency operating mode in response to a predetermined emergency situation. The control arrangement has a power transmission unit, configured to, responsive to the door control unit changing from the normal operating mode to the emergency operating mode, wirelessly receive electric power from a first mobile device and provide the electric power to the door control unit so that the opening drive opens the lock.