Pedal Change Prediction System for Vehicle Response Lag
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a lag between a driver's pedal depression and the vehicle's response, leading to inefficiencies in braking or acceleration, particularly when encountering obstacles, which can result in reduced response time and increased risk of accidents.
Innovation Solution
A pedal change prediction system that uses sensors to detect the rate of pedal depression and predicts triggering events like braking or acceleration, applying additional forces to preemptively engage the brakes or accelerator, thereby reducing response time and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the driver rapidly depresses the brake pedal or accelerator pedal to stop or accelerate suddenly, then the response time is reduced, but there is still a lag between pedal depression and full engagement of brakes or accelerator
Solution Approach 1:
The system performs preliminary action by predicting the triggering event (sudden braking or acceleration) before the driver completes pedal depression. The ECU calculates the rate of pedal depression and predicts whether the driver intends to fully engage the pedal, allowing the system to prepare and reduce the lag between pedal depression and full engagement.
Solution Approach 2:
The system dynamically adjusts the braking or acceleration force based on the predicted triggering event. Instead of a fixed response, the ECU modulates the force applied to match the driver's intended action, optimizing the transition from partial to full pedal engagement and reducing response time while maintaining reliability.
2Loss of time
If the system applies a second braking force or second acceleration force greater than the first force based on predicted triggering event, then the response time is further reduced, but the complexity of the control system increases
Solution Approach 1:
The system uses self-service by leveraging the driver's own pedal depression action as the input signal. The ECU monitors the rate of pedal depression and uses this information to predict the triggering event and determine when to apply the second force. This eliminates the need for separate sensors or complex input mechanisms, reducing overall system complexity while maintaining fast response time.
3Loss of time
If the ECU predicts the triggering event based on the rate of depression of the pedal, then the response time is reduced, but the precision of predicting the triggering event may be compromised
Solution Approach 1:
The system applies parameter changes by using the rate of pedal depression as a dynamic threshold for predicting triggering events. Instead of using a fixed force threshold, the ECU calculates how quickly the pedal is being depressed and compares it to a predetermined rate threshold. This allows the system to accurately predict sudden braking or acceleration events while maintaining fast response time, as the prediction is based on the actual driver action rather than a static parameter.
Data Source
AI summary
Methods, systems, and apparatus for predicting the braking or acceleration of a vehicle. The pedal change prediction system includes a braking sensor for providing braking data or an acceleration sensor pedal for providing acceleration data. The pedal change prediction system includes an electronic control unit that is configured to determine a rate of depression of the brake pedal or the acceleration pedal that is associated with a first braking force or a first acceleration force. The electronic control unit is configured to predict a triggering event that is either a braking event or an acceleration event. The electronic control unit predicts the triggering event based on the rate of depression of the brake pedal or the acceleration pedal and causes the vehicle to apply a second braking force or a second acceleration force.