Coupled Vehicle Reverse Control for Stable Autonomous Backing
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Solution Overview
Problem
Existing reverse control devices for combination vehicles may not be able to stably guide the vehicle to a destination during autonomous driving due to varying conditions of the towing vehicle at the start of reversing.
Innovation Solution
A reverse control device that initiates autonomous reverse driving only when specific conditions are met, including the towing vehicle's speed, steering torque, and other operational parameters being within predetermined values, ensuring stable autonomous driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If autonomous reverse driving is initiated without checking vehicle conditions, then the autonomous driving system can start reversing at any time, but the system cannot stably guide the combination vehicle to the destination due to varying starting conditions
Solution Approach 1:
The control device checks vehicle conditions (speed, steering torque, gear position) before initiating autonomous reverse driving. This preliminary verification ensures that the vehicle is in an appropriate state for autonomous operation, preventing unstable guidance and ensuring reliable destination arrival.
2Speed
If the towing vehicle has high speed or high steering torque at the start of reversing, then the vehicle can move quickly, but the autonomous driving system cannot appropriately guide the combination vehicle to the destination
Solution Approach 1:
The control device monitors and evaluates specific parameters (speed, steering torque, gear position) to determine whether autonomous reverse driving should be initiated. By controlling these parameters to be within predetermined ranges, the system ensures stable and reliable autonomous guidance to the destination.
3Ease of operation
If the towed vehicle does not follow the towing vehicle properly during reversing, then maneuvering becomes difficult for non-proficient drivers, but autonomous driving may not be able to compensate without proper starting conditions
Solution Approach 1:
The control device continuously monitors vehicle conditions and uses this feedback to determine whether to initiate autonomous reverse driving. By checking speed, steering torque, and gear position, the system ensures that autonomous driving is only started when conditions are favorable, thereby maintaining reliable performance and proper towed vehicle following behavior.
Data Source
AI summary
A reverse control device starts reversing a combination vehicle by autonomous driving only when conditions for appropriately performing the autonomous driving are satisfied, and stably reverses the combination vehicle by the autonomous driving. The autonomous driving functions as a reverse control device and is installed in a towing vehicle of a combination vehicle in which a towed vehicle is connected to the towing vehicle, and controls the towing vehicle during autonomous reverse driving for reversing the combination vehicle by autonomous driving. The autonomous driving starts the autonomous reverse driving when towing reverse start conditions are satisfied, the towing reverse start conditions including that the speed of the towing vehicle is equal to or less than a predetermined value, and that steering torque of the towing vehicle is equal to or less than a predetermined value.