Brake Electromagnet Coils With Galvanic Isolation Redundancy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In highly automated driving scenarios, conventional braking systems lack redundancy, making them unreliable without a primary driver, and existing solutions fail to provide adequate safety and voltage level redundancy in electromagnetic devices.
Innovation Solution
The implementation of galvanically isolated redundant coils in electromagnetic actuators and sensors for vehicle braking systems, allowing for inductive coupling and operation across multiple voltage levels, reducing the need for duplicate devices and improving reliability and cost-effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant electromagnetic devices (actuators and sensors) are provided for safety technology, then reliability is improved, but device complexity and installation space increase
Solution Approach 1:
The patent combines multiple winding arrangements (first and second winding arrangements with different galvanic isolations) into a single electromagnetic device structure. This allows one device to provide redundancy for multiple voltage levels (12V and 24V) without requiring separate redundant devices, thereby reducing overall system complexity while maintaining reliability.
Solution Approach 2:
The electromagnetic device is designed with multiple winding arrangements that can operate across different voltage levels (12V and 24V). This multi-functional design allows a single device to serve multiple purposes and voltage requirements, eliminating the need for separate redundant devices for different voltage levels.
2Reliability
If redundant electromagnetic devices are provided for safety technology, then reliability is improved, but installation space and costs increase
Solution Approach 1:
The patent merges multiple winding arrangements into a single electromagnetic device housing. By integrating the first and second winding arrangements (with different galvanic isolations) into one physical device, the installation space required is significantly reduced compared to providing separate redundant devices for each voltage level.
3Reliability
If galvanically isolated redundant coils are implemented, then reliability and voltage usage bandwidth are improved, but device complexity increases
Solution Approach 1:
The patent segments the electromagnetic device into multiple galvanically isolated winding arrangements (first and second windings with different isolations). Each winding arrangement handles specific voltage levels independently, which simplifies the control logic and reduces the complexity of managing ground offsets and compensating currents that would arise in a non-segmented design.
Solution Approach 2:
The patent introduces galvanic isolation as an intermediary between different voltage levels and control units. This isolation prevents ground offsets and electrical interference from propagating between different voltage domains, thereby improving reliability while keeping the electrical architecture manageable through standardized isolation interfaces.
4Adaptability or versatility
If galvanically isolated redundant coils are implemented, then voltage usage bandwidth is improved, but manufacturing complexity increases
Solution Approach 1:
The patent employs parameter changes by providing multiple winding arrangements with different galvanic isolation levels designed for different voltage ranges (12V and 24V). This allows the same basic device structure to be manufactured with varied winding parameters to suit different voltage requirements, improving adaptability while using standardized manufacturing processes.
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 enhances the operational reliability and voltage usage bandwidth of braking systems, prevents ground offsets, and enables a more fail-safe operation by providing redundancy without doubling the number of devices, thus ensuring safer and more efficient vehicle braking.
Implementation Method 1
an inductive coupling can be generated between the first winding arrangement and the armature and between the second winding arrangement and the armature
Data Source
AI summary
An electromagnetic device for a braking system for a vehicle, including: an armature made of a magnetizable material; a bushing, wherein the armature is at least partially receivable inside the bushing; a first winding arrangement having at least one turn of an electrical conductor around the bushing and having two first electrical terminals; and a second winding arrangement having at least one turn of an electrical conductor around the bushing and having two second electrical terminals, the first winding arrangement and the second winding arrangement being galvanically isolated from one another, an inductive coupling being generatable between the first winding arrangement and the armature and between the second winding arrangement and the armature. Also described are a related method, a control apparatus, a braking system, and a computer readable medium.