Virtual Jet Propulsion Control for EV Driving Sensibility
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Solution Overview
Problem
Electric vehicles lack the ability to provide drivers with the sensory experiences of vibration, sound, and thrill typically associated with internal combustion engine vehicles, limiting marketability and differentiation.
Innovation Solution
Implement a virtual jet propulsion mode in electric vehicles that mimics the operating states of different types of jet engines, including turbojet, ramjet, and scramjet engines, by generating virtual vibration and sound through a motor and sound system, and controlling motor torque based on vehicle driving information to simulate jet engine operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electric vehicle drive system is used, then smooth driving characteristics and responsive torque are achieved, but virtual driving experience and driving fun are lost
Solution Approach 1:
The patent applies mechanical vibration by generating controlled vibrations through the motor to simulate jet engine characteristics. The controller produces specific vibration patterns that mimic the physical sensations of jet propulsion, allowing drivers to experience virtual driving feelings without mechanical jet engines.
Solution Approach 2:
The patent uses periodic action by creating cyclic vibration patterns and sound waves that replicate jet engine operation cycles. The motor generates periodic vibrations and the sound system outputs periodic noise patterns that correspond to different jet engine modes (turbojet, ramjet, scramjet), enhancing the virtual driving experience.
2Adaptability or versatility
If jet engine virtual mode is implemented, then driving sensibility and marketability are improved, but system complexity increases
Solution Approach 1:
The patent applies universality by using the existing motor and sound system for multiple functions: normal vehicle propulsion and virtual jet engine simulation. The controller integrates both functions by selecting different control modes (normal driving mode and virtual jet propulsion mode), avoiding the need for separate dedicated hardware systems.
Solution Approach 2:
The patent uses an intermediary approach by introducing a controller that mediates between the driver's input and the motor/sound system output. The controller translates driving intentions into appropriate motor torque commands and sound generation patterns, managing the complexity through software control rather than hardware complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances driving sensibility and pleasure in electric vehicles by providing virtual driving experiences that mimic jet engine characteristics, improving marketability and differentiation without altering the vehicle's mechanical configuration.
Implementation Method 1
generating virtual vibration and sound through a motor
Implementation Method 2
generating virtual vibration and sound through a motor and sound system
Data Source
AI summary
A method of implementing a virtual jet propulsion mode in an electric vehicle, includes collecting, by a controller of the vehicle, vehicle driving information while the vehicle is running in a state where the virtual jet propulsion mode including a plurality of virtual modes for mimicking an operating state and a driving feeling of a jet engine is set in the controller of the vehicle, selecting, by the controller, a virtual mode corresponding to a current vehicle driving state from among the virtual modes of the virtual jet propulsion mode based on the collected vehicle driving information, determining, by the controller, a motor torque command corresponding to the collected vehicle driving information and a currently selected virtual mode, and controlling, by the controller, an operation of a motor that drives the vehicle according to the motor torque command.