Vehicle Sensor Cleaning Logic for Driving Mode and Temperature
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Solution Overview
Problem
Conventional sensor cleaning devices operate without considering driving conditions or outside temperature, leading to incomplete removal of foreign substances and reduced sensor accuracy.
Innovation Solution
A sensor cleaning system that determines the vehicle's driving mode and outside temperature to control the cleaning device's power application, using specific logic to optimize cleaning based on these conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sensor cleaning device operates without considering driving conditions or outside temperature, then the cleaning device structure is simple, but the cleaning performance is insufficient and foreign substances are not completely removed
Solution Approach 1:
The cleaning device operates with dynamic control logic that adjusts cleaning parameters based on real-time driving conditions and temperature data. The system transitions from static to dynamic operation by modifying cleaning intensity and frequency according to environmental conditions, ensuring optimal cleaning performance across varying scenarios.
Solution Approach 2:
The system changes operational parameters (cleaning intensity, duration, frequency) based on temperature and driving condition inputs. Different temperature ranges trigger different cleaning protocols, with higher temperatures allowing more aggressive cleaning and lower temperatures using gentler methods to prevent condensation or freezing issues.
2Reliability
If the cleaning device applies power continuously to ensure complete cleaning, then the cleaning performance improves, but the fluid consumption increases
Solution Approach 1:
The cleaning device uses periodic pulsed operation instead of continuous operation. The control logic applies power in intervals, allowing fluid to distribute and work effectively during on-periods, then pauses during off-periods to prevent waste and allow natural drying or drainage. This periodic cycling maintains cleaning effectiveness while reducing overall fluid consumption.
Solution Approach 2:
The system applies cleaning action selectively based on contamination detection and environmental conditions. Rather than always applying maximum cleaning power, the system adjusts the degree of cleaning action to match the actual need, using stronger cleaning only when necessary and milder cleaning when conditions permit, thereby reducing fluid usage while maintaining adequate cleaning performance.
3Reliability
If the cleaning device uses aggressive cleaning logic to remove all foreign substances, then the cleaning performance improves, but the sensor may be damaged or cleaning accuracy reduces
Solution Approach 1:
The cleaning system applies different cleaning intensities to different situations and sensor areas. Rather than uniform aggressive cleaning across all conditions, the control logic tailors the cleaning approach to the specific contamination level, sensor type, and environmental conditions, applying stronger cleaning only where and when needed while using gentler methods elsewhere to protect the sensor.
Solution Approach 2:
The system incorporates feedback mechanisms that monitor cleaning effectiveness and adjust subsequent cleaning actions accordingly. After initial cleaning attempts, the system evaluates whether foreign substances are adequately removed and modifies further cleaning actions to achieve complete removal without excessive force, preventing sensor damage while ensuring thorough cleaning.
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
Ensures optimal sensor cleaning performance and reduces fluid usage while maintaining sensor accuracy by adjusting cleaning processes according to driving conditions and environmental factors.
Implementation Method 1
a cleaning device inclined at a predetermined angle on an upper part of the sensor to spray fluid to the front portion of the sensor
Data Source
AI summary
A method of controlling a sensor cleaning system includes identifying whether a vehicle is in a driving assistance mode, identifying whether a sensor is contaminated, cleaning the sensor by applying power using a logic set in a cleaning device according to a driving condition of the vehicle in response to the sensor being identified as contaminated, and reidentifying whether the sensor is contaminated.