Motor Vehicle Locking System Emergency Power Boost Stage
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Solution Overview
Problem
Existing motor vehicle locking system control arrangements with series-connected capacitors increase installation space requirements and production costs, and require complex balancing circuits for uniform charging.
Innovation Solution
A control arrangement for a motor vehicle locking system that uses a single capacitor with multiple boost stages to generate an emergency supply voltage, allowing for efficient voltage boosting and reducing the need for multiple capacitors, with optional parallel capacitors for redundancy and a buck stage for charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If series-connected capacitors are used in the energy storage arrangement, then the emergency supply voltage can be generated, but the installation space requirements and production costs increase
Solution Approach 1:
The patent merges multiple capacitor functions into a single capacitor by using a boost converter circuit that can step up the voltage from a single capacitor to the required emergency supply voltage level. This eliminates the need for multiple series-connected capacitors while maintaining the same emergency power supply capability.
Solution Approach 2:
The patent changes the voltage parameter through the boost converter, which transforms the lower voltage from a single capacitor into the higher emergency supply voltage required by the electric drive. This parameter transformation allows using fewer capacitors while achieving the same voltage output.
2Reliability
If series-connected capacitors are used in the energy storage arrangement, then the emergency supply voltage can be generated, but the production costs increase
Solution Approach 1:
The patent reduces production costs by merging multiple capacitor components into a single capacitor configuration, supported by a boost converter circuit. This reduces component count, assembly complexity, and overall manufacturing cost while maintaining emergency power supply functionality.
3Reliability
If series-connected capacitors are used in the energy storage arrangement, then the emergency supply voltage can be generated, but the structure becomes more complex due to balancing circuits
Solution Approach 1:
The patent extracts and eliminates the complex balancing circuit requirement by transitioning from a multi-capacitor series configuration to a single-capacitor configuration with a boost converter. This removes the need for voltage balancing control while achieving the same emergency voltage output.
Solution Approach 2:
The patent uses the boost converter to change the voltage parameter from the single capacitor's output voltage to the required emergency supply voltage, replacing the complex series capacitor arrangement with a simpler single-capacitor-plus-converter architecture.
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
This solution simplifies the control arrangement, reduces costs, and enhances efficiency by using fewer and less complex components while ensuring reliable emergency power supply to the electric drive motor, even in the event of normal supply voltage failure.
Implementation Method 1
an energy storage arrangement (7) having at least one energy store in the form of a capacitor (8)
Implementation Method 2
the energy storage arrangement (7) has at least one boost stage (9, 10), which is connected downstream of the energy store to generate the emergency supply voltage, and the boost stage boosts an electrical input voltage at an input of the boost stage (9, 10) into an electrical output voltage at an output of the boost stage (9, 10)
Data Source
AI summary
A control arrangement for operating a motor vehicle locking system, the locking system has an electric drive with an electric drive motor, during normal operation, the electric drive is supplied with a normal supply voltage to provide a motorized locking, the control arrangement has an energy storage arrangement with a capacitor, the energy storage arrangement, in an emergency mode, provides an emergency electrical supply voltage for the electric drive, and includes a boost stage connected downstream of the energy storage unit for generating the emergency supply voltage, the boost stage boosts an electrical input voltage at an input of the boost stage to an electrical output voltage at an output of the boost stage. The energy storage arrangement, to generate the emergency supply voltage, has a first boost stage connected downstream for generating the emergency supply voltage and a second boost stage connected downstream of the first boost stage.