Mobile Object Control Using Contact Sensor Object Confirmation
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Solution Overview
Problem
Existing control systems for single-seated electrified vehicles fail to accurately detect objects near the mobile object, particularly those that are not easily recognizable or are hard to detect using conventional sensors.
Innovation Solution
A control system and method that employs multiple sensors, including a first sensor for initial detection and a second contact sensor to confirm the presence of objects by causing the vehicle to physically approach or contact them, allowing for more accurate detection of hard-to-detect objects by assuming their presence at a reference position based on a recognized object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single sensor is used for object detection, then the device complexity is reduced, but the measurement precision of hard-to-detect objects deteriorates
Solution Approach 1:
The patent combines a first sensor (camera or radar) and a second sensor (contact sensor) into an integrated detection system. The first sensor performs initial object detection, and the second sensor confirms detection by detecting contact force when the mobile object approaches or contacts the object. This merging of sensors resolves the contradiction by achieving high measurement precision through multi-sensor fusion while managing device complexity through coordinated operation.
Solution Approach 2:
The control device acts as an intermediary that processes detection results from the first sensor, determines reference positions for hard-to-detect objects, and controls the mobile object's movement to enable the second sensor to detect contact. This intermediary processing resolves the contradiction by intelligently coordinating the two sensors to achieve accurate detection without requiring simultaneous complex operation of both sensors.
2Measurement precision
If the mobile object moves to contact or approach objects for detection, then the measurement precision improves, but the loss of time increases due to additional movement
Solution Approach 1:
The control device performs preliminary action by determining the reference position of hard-to-detect objects based on detection results from the first sensor before the mobile object actually contacts them. This allows the system to proactively plan the approach path and minimize unnecessary movement, resolving the contradiction by achieving accurate detection while reducing time loss through advance positioning calculations.
Solution Approach 2:
The system applies partial action by using the second sensor only when necessary - specifically when the first sensor detects an object at a reference position and determination is needed whether it is a hard-to-detect object. This selective use of the contact detection method resolves the contradiction by achieving measurement precision only when required, rather than continuously, thus reducing time loss.
3Measurement precision
If multiple sensors are used for detection, then the measurement precision improves, but the device complexity increases
Solution Approach 1:
The detection function is segmented into two distinct parts: the first sensor (camera or radar) handles initial object detection and identification, while the second sensor (contact sensor) handles confirmation detection through contact force measurement. This segmentation resolves the contradiction by dividing the detection task across specialized sensors, achieving high measurement precision while managing complexity through clear functional separation.
Solution Approach 2:
The mobile object itself serves multiple functions: it is both the platform carrying the sensors and the means by which the second sensor detects objects through contact. This multi-functionality resolves the contradiction by using the mobile object's inherent movement capability for detection purposes, reducing the need for additional specialized detection apparatus and thus managing device complexity.
Data Source
AI summary
A control system for a mobile object includes: a first sensor; a second sensor, different from the first sensor, that is mounted in the mobile object and is configured to detect an object by causing the mobile object to contact or approach the object; and a control device configured to recognize circumstances of the mobile object on the basis of a detection result from the first sensor and to control movement of the mobile object on the basis of the circumstances. The control device assumes that a second object which is not recognizable or hard to recognize is present at a reference position which is determined on the basis of a position of a prescribed first object when the first object has been recognized and causes the mobile object to move to a position at which the second sensor is able to detect the second object.