Vehicle Sensor Viewport Cleaning During Cold Start Detection
Solution Overview
Problem
Existing vehicle sensors face inaccuracies due to unclean viewports during cold start phases, leading to inefficient intelligent driving, as they cannot promptly verify cleanliness without internal power and flash memory.
Innovation Solution
A cleaning method and system that includes scanning the viewport during a cold start phase to detect dirt using predetermined features, activating a cleaning device to clean the viewport when dirt is detected, and adjusting cleaning methods based on dirt type and region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle sensor is cleaned only when the vehicle is parked, then the cleaning process is simple and does not interfere with vehicle operation, but the viewport may become dirty during cold start phase leading to inaccurate sensor data
Solution Approach 1:
The system performs viewport cleaning before the sensor begins its cold start operation by detecting dirt on the viewport and activating the cleaning device. This preliminary action ensures the viewport is clean before data collection begins, preventing inaccurate sensor data during the critical cold start phase when the vehicle first begins operation after being powered off for an extended period.
2Reliability
If the sensor scans the viewport to detect dirt during cold start phase, then the viewport cleanliness can be verified promptly, but the system complexity increases due to additional scanning and detection requirements
Solution Approach 1:
The vehicle sensor performs self-detection of viewport dirt conditions during the cold start phase. The sensor utilizes its own operational capabilities to scan and identify dirt on the viewport, then automatically triggers the cleaning device. This self-service approach allows the system to verify viewport cleanliness without requiring external inspection equipment or complex additional detection systems.
3Reliability
If the cleaning device is activated immediately when dirt is detected during cold start phase, then the viewport is cleaned promptly ensuring accurate data, but the response time is reduced leaving a brief period of potential data inaccuracy
Solution Approach 1:
The system detects dirt on the viewport and activates the cleaning device before the sensor completes its cold start data collection process. By performing this action preliminarily, during the cold start phase but before normal operation begins, the system ensures the viewport is cleaned in advance, preventing any period of data inaccuracy during the vehicle's operational phase.
Data Source
AI summary
The disclosure provides a cleaning way for a vehicle sensor, the vehicle sensor has a viewport. The cleaning way includes steps of: controlling the vehicle sensor to scan the viewport to obtain viewport data of the vehicle sensor when the vehicle enters a cold start phase; determining whether dirt exists on the viewport based on the viewport data and predetermined dirt features; and controlling a cleaning device to clean the viewport when dirt on the viewport is detected. Additionally, the disclosure further provides a cleaning system for a vehicle sensor and a vehicle.