Vehicle Sensor Threshold Adjustment for Accidental Activation
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Solution Overview
Problem
Existing vehicle operating systems often unintentionally activate specific functions when the unlock and lock sensors are actuated simultaneously, leading to malfunctions.
Innovation Solution
An operating method and device that utilize sensors to detect physical variables, adjusting sensitivity thresholds to prevent unintentional activation of functions, where the third operating function is activated only when both sensors exceed specific threshold values, with the third threshold being higher than the first, thereby reducing sensitivity and preventing accidental activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sensitivity threshold of the first sensor is increased to improve detection accuracy for the first operating function, then the detection precision is improved, but the frequency of unintentional activation of the third operating function increases
Solution Approach 1:
The patent applies parameter changes by implementing multiple threshold values for the first sensor depending on the operating function. For the first operating function, a first threshold is used, while for the third operating function, a third threshold is applied that is higher than the first threshold. This dynamic adjustment of sensor thresholds resolves the contradiction by allowing high sensitivity for simple operations while maintaining low sensitivity for complex operations to prevent accidental activation.
2Adaptability or versatility
If a third operating function is activated when both first and second sensors are simultaneously actuated, then the functionality is enhanced, but the system complexity increases due to multiple threshold management
Solution Approach 1:
The patent applies segmentation by dividing the threshold management into distinct segments: a first threshold for the first operating function, a second threshold for the second operating function, and a third threshold for the third operating function. Each threshold is independently defined and managed, which simplifies the overall system complexity while enabling multiple operating functions. The segmentation approach allows each sensor function to have its own optimized threshold without requiring complex interdependent threshold management.
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 approach effectively reduces the frequency of unintentional activation of the third operating function, ensuring accurate and intentional activation of vehicle functions while maintaining high sensitivity for simple operations like locking.
Implementation Method 1
A first control function is activated when a first sensor of the vehicle is used to detect that a first physical variable (for example a capacitance, an inductance, a magnetic field variable, a light intensity, a signal propagation time or a range (distance) of a deflection of a control element)
Implementation Method 2
A first control function is activated when a first sensor of the vehicle is used to detect that a first physical variable (for example a capacitance, an inductance, a magnetic field variable, a light intensity, a signal propagation time or a range (distance) of a deflection of a control element)
Implementation Method 3
A first control function is activated when a first sensor of the vehicle is used to detect that a first physical variable (for example a capacitance, an inductance, a magnetic field variable, a light intensity, a signal propagation time or a range (distance) of a deflection of a control element)
Implementation Method 4
A first control function is activated when a first sensor of the vehicle is used to detect that a first physical variable (for example a capacitance, an inductance, a magnetic field variable, a light intensity, a signal propagation time or a range (distance) of a deflection of a control element)
Implementation Method 5
A first control function is activated when a first sensor of the vehicle is used to detect that a first physical variable (for example a capacitance, an inductance, a magnetic field variable, a light intensity, a signal propagation time or a range (distance) of a deflection of a control element)
Implementation Method 6
a second sensor of the vehicle detects that a second physical variable is greater than a predetermined second threshold value
Implementation Method 7
A third operating function is activated when the first sensor detects that the first physical variable is greater than a predetermined third threshold value and when the second sensor simultaneously detects that the second physical variable is greater than a predetermined fourth threshold value
Data Source
Figure 1~3
Figure 4
AI summary
A first operator control function is activated if it is detected by means of a first sensor (21) that a first physical variable (8) is higher than a predetermined first threshold value (1). In a similar way, a second operator control function is activated if it is detected by means of a second sensor (22) that a second physical variable (8) is higher than a predetermined second threshold value. A third operator control function is activated if it is detected by means of the first sensor (21) that the first physical variable (8) is higher than a predetermined third threshold value (3) and if at the same time it is detected by means of the second sensor (22) that the second physical variable (8) is higher than a predetermined fourth threshold value (2), the third threshold value (3) being higher than the first threshold value (1).