EV Force Generator Emulation for ICE-Like Vibration Feedback
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Solution Overview
Problem
All-electric, hybrid-electric, and alternative fuel vehicles lack the vibrational feedback and auditory sensations associated with internal combustion engines, which are often desired by consumers for brand identity and driving experience.
Innovation Solution
An emulation system for electric vehicles that includes force generators and an acoustic emulator, controlled by a CAN BUS network, to produce vibrations and sounds mimicking the operation of an internal combustion engine, using data from vehicle sensors to generate demand signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If an internal combustion engine is used, then vibrational feedback and auditory sensations are provided, but environmental harm increases and fuel efficiency decreases
Solution Approach 1:
The patent uses force generators to create artificial vibrations that copy the characteristic vibrational patterns of internal combustion engines. Sensors detect vehicle operating conditions (speed, acceleration, gear position) and the controller generates corresponding vibrational signals that mimic engine vibrations, allowing electric vehicles to replicate the sensory experience of ICE vehicles without the environmental drawbacks.
2Adaptability or versatility
If an internal combustion engine is used, then brand identity and driving experience are enhanced, but environmental conscientiousness is compromised
Solution Approach 1:
The system copies the brand-specific vibrational characteristics by storing and reproducing vibration profiles associated with different vehicle types and brands. The controller can select and apply appropriate vibration patterns that match the desired brand identity, allowing manufacturers to maintain their characteristic driving feel while transitioning to electric powertrains.
3Illumination intensity
If force generators are added to emulate engine vibrations, then driving experience is enhanced, but device complexity increases
Solution Approach 1:
The force generators are designed to serve multiple functions: they provide vibration feedback for brand identity, enhance driving experience during different operating conditions, and can potentially be used for other driver feedback applications. This multi-functionality justifies the added complexity by maximizing the utility of each added component.
Solution Approach 2:
The system uses sensors to continuously monitor vehicle operating conditions (speed, acceleration, gear position) and feeds this information back to the controller, which adjusts the force generator output in real-time. This closed-loop feedback system automates the vibration generation process, reducing the need for complex manual control mechanisms.
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
Provides a realistic simulation of internal combustion engine feel and sound, enhancing the driving experience while maintaining environmental benefits of electric vehicles.
Implementation Method 1
the force generator configured to produce vibrations upon receipt of the demand signal from the force generator controller
Data Source
AI summary
An electric vehicle emulation system and method is provided using at least one force generator (FG) to induce a vibration emulating the feel of an internal combustion engine in an all-electric, hybrid-electric, or alternative fuel vehicle. The FG may be a circular FG (CFG), a linear FG (LFG), or a combination of both CFGs and LFGs.