Inductor Device with Integrated Shunt Resistor for Steering Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing steering systems face challenges in effectively filtering noise from current and simultaneously sensing current for accurate steering control, which affects the performance and reliability of electric power steering systems.
Innovation Solution
An inductor device comprising a core with a magnetic material and a wire wound with a low-resistance shunt resistor, enabling both noise filtering and current sensing, is integrated into a filter device and steering control system to enhance noise reduction and current measurement capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional inductor is used for noise filtering, then noise filtering performance is improved, but current sensing capability deteriorates (cannot sense current)
Solution Approach 1:
The patent applies multi-functionality by integrating both noise filtering and current sensing capabilities into a single inductor device. The inductor unit with magnetic core and wound wire provides noise filtering, while the integrated shunt resistor enables current sensing functionality, eliminating the need for separate components.
Solution Approach 2:
The patent merges the noise filtering function (inductor) and current sensing function (shunt resistor) into a single integrated inductor unit. This combination allows the device to simultaneously filter electromagnetic noise and measure current flow through the power line.
2Object-affected harmful factors
If separate noise filtering and current sensing components are used, then filtering performance is improved, but device complexity increases
Solution Approach 1:
The inductor unit is designed to perform multiple functions simultaneously - noise filtering through its inductive properties and current sensing through the integrated shunt resistor. This multi-functional design reduces the total number of components needed in the steering control device.
Solution Approach 2:
The patent combines what would traditionally be separate components (inductor for filtering and shunt resistor for sensing) into a single integrated inductor unit, thereby simplifying the overall device structure and reducing component count while maintaining both filtering and sensing capabilities.
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
The solution allows for effective noise filtering and current sensing, improving the performance and reliability of steering systems by reducing noise and enabling precise current measurement, thus enhancing the overall control of steering assist functions.
Implementation Method 1
an inductor unit (210) to filter noise included in current
Implementation Method 2
a core (110) including a magnetic material; and a wire (120) wound on the core (110)
Implementation Method 3
including a shunt resistor including a low-resistance material
Implementation Method 4
a wire (120) wound on the core (110) and including a shunt resistor including a low-resistance material
Data Source
AI summary
The present embodiments relate to an inductor device, a filter device and a steering assist device. The inductor device can comprise: a core including a magnetic material; and a wire which is wound around the core and which includes a low resistance material.