EV Gear Shift Sound Control for Driver Feedback
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Solution Overview
Problem
Electric vehicles lack the auditory feedback of gear shifts, reducing driver involvement and pleasure, especially in high-performance sports vehicles.
Innovation Solution
A control method for electric vehicles that reproduces the sound of mechanical gear shifts using audio files stored in a memory unit, selected based on operational configurations, and played through a reproduction system to enhance the auditory perception of gear shifts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an electric power train system is used, then performance is improved and the need for gear shifting is eliminated, but driver involvement and driving pleasure are reduced due to lack of auditory feedback
Solution Approach 1:
The system introduces auditory feedback by reproducing gear shift sounds through speakers in the passenger compartment. The control unit detects gear shift requests and triggers playback of corresponding audio files, providing the driver with sensory feedback that enhances involvement and pleasure without compromising the performance benefits of the electric power train system.
Solution Approach 2:
The system creates a copy of the traditional gear shift auditory experience by storing and reproducing recorded gear shift sounds. Instead of relying on the natural sounds of an electric motor, the system copies the characteristic sounds of mechanical gear shifts from internal combustion engines, allowing drivers to experience familiar auditory cues that enhance driving pleasure.
2Ease of operation
If gear shifting system is added to electric vehicle, then driver involvement is improved, but device complexity increases
Solution Approach 1:
The system replaces the mechanical gear shifting system with a virtual gear shifting approach. Instead of physical gears and complex mechanical transmission components, the system uses software-based gear shift requests detected by the control unit, which then trigger auditory feedback. This substitution maintains driver involvement while significantly reducing mechanical complexity.
Solution Approach 2:
The system introduces an intermediary layer between the driver and the electric power train system. The control unit acts as a mediator that detects gear shift requests from the driver and provides auditory feedback through audio files, creating a communication bridge that enhances driver involvement without requiring complex mechanical modifications to the power train system.
Data Source
AI summary
Control method for a vehicle comprising the steps of: providing a memory unit comprising a plurality of audio files corresponding to the sound of a gear shift in a number of predefined operational configurations as a function of at least one vehicular state variable; detecting a gear shift request from a driver to a gear shifting system interface device; detecting an actual operational configuration as a function of the at least one vehicular state variable; selecting one of the audio files stored in the memory unit corresponding to the sound of a gear shift as a function of the actual operational configuration; playing the selected audio file at least within a passenger compartment of the road vehicle.