Mode Driving Pedal Feedback for Chassis Dynamometer Speed Matching
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Solution Overview
Problem
Drivers with less experience find it difficult to maintain the target traveling speed during mode driving on a chassis dynamometer, leading to deviations in fuel economy, as they struggle to visually operate the accelerator and brake pedals effectively without actual road conditions changing.
Innovation Solution
A mode driving assistance system that includes a display, storage, and controller to visually show target and actual operation amounts of the accelerator and brake pedals as time series images, allowing for real-time correction and learning adjustments to align with target values, thereby aiding less experienced drivers in achieving the set traveling speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a driver with less experience operates the accelerator and brake pedals during mode driving on a chassis dynamometer, then the driver struggles to maintain the target traveling speed, but providing visual feedback of target and actual operation amounts can improve speed matching accuracy
Solution Approach 1:
The system displays both the target operation amount and actual operation amount of the accelerator and brake pedals on a screen, providing visual feedback to the driver. This allows the driver to see the difference between intended and actual pedal positions, enabling real-time correction and improving the accuracy of traveling speed matching during mode driving.
Solution Approach 2:
The control device acts as an intermediary between the driver's pedal operations and the vehicle's traveling speed control. By processing the operation amounts and displaying them as visual information, the system mediates the driver's control actions to achieve more precise speed matching without requiring extensive driver experience.
2Ease of operation
If visual feedback of target and actual operation amounts is displayed on a screen, then less experienced drivers can more easily match traveling speed with target speed, but the system complexity increases
Solution Approach 1:
The control device performs multiple functions: it controls the chassis dynamometer, monitors pedal operation amounts, processes speed data, and displays visual feedback. By making the control device multi-functional, the system avoids adding separate dedicated components for each function, thereby limiting the increase in system complexity while still providing comprehensive assistance.
Solution Approach 2:
The system uses the existing control device and display screen to provide the feedback function, rather than requiring additional specialized equipment. The control device leverages its own capabilities to generate and display the visual feedback, making the system self-sufficient and avoiding external additions that would increase complexity.
Data Source
AI summary
A mode driving assistance system for a vehicle assists a driver when the driver conducts mode driving by operating an operation member such that a traveling speed meets a time series change in the traveling speed. The operation member is disposed on a chassis dynamometer. The operation member conducts at least one of acceleration or deceleration of the vehicle. The system includes: a display that the driver can observe visually; a storage that stores a target value relating to an operation amount of the operation member in time series; a first detector that detects an actual value of the operation amount of the operation member; and a controller that displays the target value of the operation amount of the operation member stored in the storage and the actual value of the operation amount of the operation member detected by the first detector, as a time series image on the display.