Vehicle Acceleration Restriction Device for Step Navigation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle acceleration control systems may interfere with obstacles when increasing drive force to navigate steps, leading to potential hazards during the transition.
Innovation Solution
The vehicle acceleration suppression control system adjusts acceleration based on the presence of a parking frame or obstacles ahead, gradually releasing control when the vehicle is in a stop state and maintaining the release state upon entering a travel state, ensuring safe navigation over steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If drive force is increased to move over a step quickly, then the stop period is shortened and step crossing speed is improved, but interference with obstacles may occur
Solution Approach 1:
The acceleration suppression control dynamically adjusts the drive force based on real-time detection of vehicle state (stop or travel). When the vehicle is detected to be in a stop state during step crossing, the control is gradually released to prevent obstacle interference. When in travel state, the release state is held to maintain safe operation, thus adaptively managing the contradiction between speed and safety.
Solution Approach 2:
The system continuously detects the vehicle's operational state (stop or travel) during step crossing and provides feedback to the acceleration suppression control. This feedback mechanism allows the system to adjust the drive force appropriately - gradually releasing control during stop state and holding release state during travel state - thereby resolving the contradiction between rapid step crossing and obstacle interference prevention.
2Reliability
If acceleration suppression control is applied to prevent obstacle interference, then safety is improved, but the vehicle may not move over the step efficiently
Solution Approach 1:
The acceleration suppression control is applied periodically based on the vehicle's operational state. During stop state, the control is gradually released in a periodic manner, allowing the vehicle to move over the step efficiently while still preventing obstacle interference. This periodic application of control balances safety with step crossing efficiency.
Solution Approach 2:
The system dynamically adjusts the acceleration suppression control based on real-time detection of vehicle state. When the vehicle is in stop state, the control is gradually released to improve step crossing efficiency. When in travel state, the release state is held to maintain safety. This dynamic adjustment resolves the contradiction between safety and efficiency.
3Productivity
If acceleration suppression control is gradually released during stop state, then the vehicle can move over the step with improved efficiency, but the control complexity increases
Solution Approach 1:
The acceleration suppression control system automatically detects the vehicle's operational state (stop or travel) and self-adjusts the control release accordingly. During stop state, the control is gradually released without manual intervention. During travel state, the release state is automatically held. This self-service mechanism improves step crossing efficiency while minimizing the perceived complexity for the user.
Solution Approach 2:
The system uses feedback from the vehicle state detection to automatically manage the control release. The detection unit provides feedback on whether the vehicle is in stop or travel state, and the control unit automatically adjusts the acceleration suppression control based on this feedback. This feedback-driven approach simplifies the user interface while maintaining efficient step crossing.
Data Source
AI summary
A travel controller (10) is configured to carry out acceleration suppression control of suppressing acceleration of a vehicle (V) depending on an accelerator manipulation amount based on a parking frame (LO) existing ahead in a driven direction of the vehicle (V). Then, the travel controller (10) is configured to gradually release the acceleration suppression control when detecting that the vehicle V is in a stop state while carrying out the acceleration suppression control. In addition, the travel controller (10) is configured to hold a release state of the acceleration suppression control at the time of detection of the travel state, when the travel state detector detects that the vehicle (V) is in a travel state while releasing the acceleration suppression control.