Vehicle Driving Assist Control for Accelerator Override Efficiency
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Solution Overview
Problem
Existing vehicle driving assist systems fail to efficiently meet driver requests to accelerate while maintaining power output efficiency when an accelerator override state is produced during moving assist control.
Innovation Solution
A vehicle driving assist apparatus with an electronic control unit that executes ordinary and economy moving assist controls, including coasting and optimum acceleration controls, to maintain power output efficiency and meet driver acceleration requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the moving assist control is temporarily stopped to accelerate the own vehicle when an accelerator override state is produced, then the driver's acceleration request is met, but the power output efficiency of the driving apparatus is reduced
Solution Approach 1:
The system dynamically switches between economy moving assist control and ordinary moving control based on the accelerator override state. When an override state is detected, the system transitions from economy mode (which maintains power efficiency) to ordinary mode (which prioritizes acceleration response), thereby dynamically adapting to changing driver requirements while optimizing the balance between acceleration performance and power efficiency
Solution Approach 2:
The system changes the control parameters by switching between two distinct control modes: economy moving assist control with coasting and optimum acceleration controls for efficiency, and ordinary moving control for acceleration. This parameter switching allows the system to meet driver acceleration requests while minimizing the reduction in power output efficiency by only transitioning modes when necessary
2Use of energy by moving object
If the moving assist control continues to be executed when an accelerator override state is produced, then the power output efficiency is maintained, but the driver's acceleration request is not met
Solution Approach 1:
The system continuously monitors the accelerator pedal operation to detect accelerator override states. When an override state is detected, the system provides feedback by switching from economy moving assist control to ordinary moving control, ensuring that the driver's acceleration request is fulfilled while maintaining power efficiency during normal operation
Solution Approach 2:
The control system is designed to perform multiple functions: it executes economy moving assist control for energy-efficient operation during normal conditions, and switches to ordinary moving control for acceleration response when needed. This multi-functionality allows the single system to satisfy both efficiency requirements and driver acceleration requests under different operating conditions
Data Source
AI summary
While an ordinary moving assist control is executed, a vehicle driving assist apparatus stops the ordinary moving assist control and execute an ordinary moving control to accelerate an own vehicle, based on an accelerator pedal operation amount when an accelerator override state is produced due to an operation of an accelerator pedal of the own vehicle. While an economy moving assist control is executed, the vehicle driving assist apparatus accelerates the own vehicle by an optimum acceleration control when an acceleration request condition that the accelerator override state is produced, is satisfied.