Group Riding Speed Control to Prevent Target Loss Overtaking
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Solution Overview
Problem
Existing technologies lack effective methods to assist the driving of straddle type vehicles in group traveling scenarios, particularly in maintaining appropriate positional relationships and controlling acceleration to prevent vehicles from overtaking each other when target vehicles are no longer detected by sensors.
Innovation Solution
A control device and method that adjusts the positional relationship between vehicles in a group by setting a detected vehicle as a target, controlling speed to a target speed, and executing acceleration suppression operations to prevent overtaking when a vehicle is no longer detected, using sensors to maintain group formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the own vehicle executes speed control to maintain positional relationship with a detected target vehicle, then the positional relationship between vehicles is improved, but when the target vehicle is no longer detected, the own vehicle may overtake the target vehicle causing loss of group formation
Solution Approach 1:
The system performs preliminary actions by suppressing acceleration before the actual overtaking occurs. When the target vehicle is no longer detected, the control device proactively suppresses acceleration increase to prevent the own vehicle from overtaking the target vehicle, maintaining group formation stability before the detection issue causes problems.
Solution Approach 2:
The system uses feedback from the surrounding environment sensor to continuously monitor target vehicle detection status. When detection is lost, the control device receives feedback about the detection failure and adjusts acceleration control accordingly, creating a closed-loop control system that responds to detection reliability changes.
2Difficulty of detecting and measuring
If the surrounding environment sensor continuously scans to detect target vehicles in group traveling, then the detection capability is improved, but the detection precision may deteriorate due to multiple vehicles in different convoys
Solution Approach 1:
The system applies local quality by differentiating detection priorities based on spatial location. Vehicles in the same convoy receive different detection treatment compared to vehicles in other convoys. The control device identifies which detected vehicle is the relevant target based on convoy membership, applying precise control only to the appropriate vehicle while ignoring others.
Solution Approach 2:
The system segments the group of vehicles into distinct convoys, allowing the detection and control system to treat vehicles in different convoys differently. This segmentation enables the sensor to focus on relevant target vehicles within the same convoy while reducing interference from vehicles in other convoys, improving both detection capability and precision.
Data Source
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AI summary
To appropriately assist the driving of a rider of a straddle type vehicle traveling as a group. An execution section of a control device executes a positional relationship adjusting operation that adjusts a positional relationship between an own vehicle (1) and a target vehicle in a group including the own vehicle (1) and traveling as a group and executes an acceleration increase suppression operation that suppresses an increase in acceleration of the own vehicle (1) compared to an increase in acceleration of the own vehicle (1) when a second other vehicle (2a) located in a convoy to which the own vehicle (1) belongs is set as the target vehicle in a case where a first other vehicle (2b) is no more detected by a surrounding environment sensor (14) in a situation in which the first other vehicle (2b) located in a convoy to which the own vehicle (1) does not belong is set as the target vehicle or when the speed control is executed without setting the target vehicle.