One-Pedal Driving Control for Accurate Congestion Detection
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Solution Overview
Problem
Existing one-pedal driving systems struggle to accurately determine whether a vehicle is in a congested section, leading to frequent and repetitive pedal adjustments, which cause driver discomfort and reduce the system's usefulness.
Innovation Solution
A vehicle control method that utilizes connected car technology to collect information on peripheral and preceding vehicles, determining the presence of a congested section, and adjusts the vehicle's operation to maintain a preset proximity distance through motor torque control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If congested section is determined based on front vehicle velocity and relative distance only, then the determination method is simple, but the determination accuracy is low leading to frequent pedal adjustments
Solution Approach 1:
The determination of congested section is divided into multiple independent evaluation dimensions: front vehicle velocity, relative distance, peripheral vehicle count, and peripheral vehicle velocity. Each dimension is evaluated separately and combined to make the final determination, improving accuracy while keeping each sub-evaluation simple
Solution Approach 2:
The system collects information on peripheral vehicles that can serve multiple purposes: they provide data for congested section determination, helps assess traffic density, and enables more accurate prediction of driving conditions. This multi-functional use of the same data improves determination accuracy without proportionally increasing system complexity
2Ease of operation
If proximity distance control is activated in congested sections, then driver ankle strain is reduced, but frequent pedal adjustments are needed when congested section is misidentified
Solution Approach 1:
The system continuously monitors front vehicle velocity, relative distance, and peripheral vehicle information in real-time, dynamically adjusting the congested section determination. This feedback mechanism ensures that proximity distance control is activated only when truly appropriate, reducing misidentification and improving reliability while maintaining ease of operation
Solution Approach 2:
The system performs preliminary assessment of congested section conditions using collected vehicle information before activating proximity distance control. By evaluating multiple parameters in advance (peripheral vehicle count, velocities, relative distance), the system prepares the control activation conditions, ensuring reliable activation only when genuinely needed, thus reducing unnecessary pedal adjustments
3Measurement precision
If multiple vehicle information parameters are collected for congested section determination, then determination accuracy improves, but information processing complexity increases
Solution Approach 1:
The information processing is segmented into distinct modules: collecting front vehicle information, collecting peripheral vehicle information, evaluating congested section conditions based on multiple parameters, and making determination. This segmentation allows complex multi-parameter processing to be handled in manageable, independent steps, improving accuracy without overwhelming complexity
Data Source
AI summary
A vehicle control method for one-pedal driving assistance including a process capable of accurately determining whether a traveling road is in a congested section in a proximity distance control start condition in a vehicle that enables one-pedal driving is provided. The vehicle control method includes including collecting, by a controller in a host vehicle having a one-pedal driving system, information on peripheral vehicles positioned, on a traveling road, in front of and behind the host vehicle and connected by a connected car system and information on a preceding vehicle positioned in front of each of the peripheral vehicles. The vehicle control method also includes determining, by the controller, whether the host vehicle is positioned in a congested section based on the information on the peripheral vehicles and the information on the preceding vehicle with respect to each of the peripheral vehicles.