Driver Assistance System Acceleration Feedback
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Solution Overview
Problem
Current driver assistance systems do not provide adequate information on how sharply the accelerator should be actuated during acceleration, leading to inefficient acceleration processes as drivers often apply too little or too much force, resulting in suboptimal vehicle performance.
Innovation Solution
A system and method that determine a target acceleration value based on instantaneous and future driving conditions, using sensors and navigation data to compare actual acceleration with a target value, and provide haptic feedback through an actuator on the gas pedal, along with visual cues on a display panel, to guide the driver in adjusting their acceleration for optimal efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the driver actuates the accelerator without assistance system guidance, then the driver maintains full control and ease of operation, but the acceleration process becomes inefficient due to too weak or too sharp acceleration
Solution Approach 1:
The system continuously monitors actual acceleration and compares it with target acceleration, then provides haptic feedback through the accelerator pedal and visual feedback through display symbols to guide the driver toward optimal acceleration behavior
Solution Approach 2:
The assistance system acts as an intermediary between the driver and the vehicle propulsion system, using haptic and visual interfaces to communicate acceleration guidance without directly controlling the accelerator
2Productivity
If the system provides detailed acceleration guidance through haptic and visual feedback, then acceleration efficiency is improved, but the device complexity increases due to additional sensors, actuators, and control systems
Solution Approach 1:
The accelerator pedal serves multiple functions: it remains the primary driver interface while simultaneously functioning as a haptic feedback actuator, and the display system provides both standard vehicle information and acceleration guidance symbols
Solution Approach 2:
The system uses the driver's own accelerator input signals and the vehicle's existing acceleration data to generate feedback, leveraging available resources rather than requiring entirely separate sensing and actuation systems
Data Source
AI summary
The disclosure relates to a method for assisting a driver of a motor vehicle in which a target value for a future acceleration of the motor vehicle and an actual value for an instantaneous acceleration of the motor vehicle are determined, wherein the target value and the actual value are compared and displayed for the driver on a display panel, wherein the driver is informed whether he should increase or decrease acceleration by actuating a gas pedal of the motor vehicle.