Vehicle Wheel Suspension with Integrated Magnetic Angle Sensors
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Solution Overview
Problem
Modern electronic stability control systems for vehicles inaccurately determine the wheel load and position relative to the vehicle body, limiting the performance of these systems due to exclusion or inaccurate inclusion of king pin angle and track values.
Innovation Solution
A wheel suspension system with integrated angle-measuring devices in pivotable connections, allowing for precise determination of king pin angle, track angle, and wheel load by measuring cardanic and rotatory angles, using magnetic principles and ball and socket joints, connected to a evaluating device for accurate calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If wheel load and position are determined using model-supported calculation with measured variables, then electronic stability control systems can operate, but accuracy is limited due to exclusion or inaccurate inclusion of king pin angle and track values
Solution Approach 1:
The patent replaces complex mechanical measurement systems with magnetic angle-measuring devices that use magnetic fields to detect angular positions. The magnetic measuring devices integrated into the pivotable connection means measure cardanic and rotatory angles without requiring complex mechanical linkages, thereby improving measurement precision while keeping the system relatively simple.
Solution Approach 2:
The pivotable connection means serve multiple functions: they provide mechanical suspension functionality while simultaneously housing integrated angle-measuring devices that measure both cardanic and rotatory angles. This multi-functionality allows accurate determination of king pin angle and track angle without adding separate measurement systems, resolving the contradiction between measurement precision and device complexity.
2Measurement precision
If angle-measuring devices are integrated in pivotable connection means, then king pin angle and track angle can be determined accurately, but device complexity increases
Solution Approach 1:
The patent merges the angle-measuring devices directly into the pivotable connection means, combining the mechanical suspension components with the measurement functionality. This integration allows accurate determination of angles while minimizing additional complexity by using the existing structural elements as housings for the measuring devices.
Solution Approach 2:
Traditional mechanical angle measurement systems with complex linkages and gears are replaced by magnetic angle-measuring devices that use magnetic fields and sensors. This substitution dramatically simplifies the measurement system while maintaining high precision in determining king pin angle and track angle.
3Measurement precision
If two angle measurements are taken at different locations of the wheel suspension, then wheel load and position can be determined with greater accuracy, but measurement system complexity increases
Solution Approach 1:
The pivotable connection means are designed to perform both mechanical suspension functions and dual angle measurements (cardanic and rotatory angles) simultaneously. By integrating multiple measurement capabilities into existing components, the system achieves high position determination accuracy without proportionally increasing overall system complexity.
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
Enables accurate determination of wheel load and position, enhancing the performance of electronic stability control systems by providing precise measurements directly from the wheel suspension, improving the accuracy of load factor calculations.
Implementation Method 1
The angle measurement with the first angle-measuring device describes here the pivoting and/or twisting of the first guide means in relation to the wheel carrier or the carrier element. Furthermore, the angle measurement with the second angle-measuring device describes the pivoting and/or twisting of the second guide means
Data Source
AI summary
A wheel suspension is provided for a vehicle (7), with a carrier element (5), a wheel carrier (1) arranged at a spaced location from the carrier element (5) and a wheel (14) mounted rotatably on the wheel carrier (1). The wheel carrier (1) is connected to the carrier element (5) via a first guide (3; 17) and a first pivotable connection (10) and the wheel carrier (1) is connected to the carrier element (5) via a second guide (2; 4) and a second pivotable connection (8; 12). A first angle-measuring device (27, 28) is integrated in the first pivotable connection (10) and a second angle-measuring device (44, 45) is integrated in the second pivotable connection (8; 12).