Working Fluid Vibration Actuator for Vehicle Sound Compensation
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Solution Overview
Problem
Existing sound compensation apparatuses for vehicles are complex and expensive, failing to provide an inexpensive, versatile, and simply producible solution for reducing undesirable sound emissions in working fluid circuits.
Innovation Solution
A sound compensation apparatus featuring a vibration actuator integrated into a refrigerant or coolant circuit, which uses a vibration sensor to detect and partially or completely eliminate sound waves generated by electric machines, such as traction motors or air conditioning compressors, through destructive interference, and can also generate acoustic warning signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If existing sound compensation apparatuses are used, then sound waves can be compensated, but the design becomes complex and expensive
Solution Approach 1:
The vibration actuator is integrated into the working fluid circuit to perform multiple functions: it compensates for sound waves in the working fluid, generates acoustic warning signals for passers-by and animals, and potentially serves as both actuator and sensor. This multi-functionality reduces the need for separate dedicated components, thereby simplifying the overall apparatus design while maintaining effective sound compensation capability.
Solution Approach 2:
The patent combines the sound compensation function with the existing working fluid circuit system by integrating the vibration actuator directly into the circuit. This merging approach eliminates the need for separate sound compensation systems, reducing component count and simplifying the overall design while achieving effective sound wave compensation in the working fluid.
2Object-affected harmful factors
If existing sound compensation apparatuses are used, then sound waves can be compensated, but the production cost increases
Solution Approach 1:
The vibration actuator serves multiple purposes including sound compensation, acoustic warning signal generation, and potential sensing functions. This multi-functionality justifies a single investment in the component that delivers multiple benefits, thereby reducing the overall production cost compared to implementing separate systems for each function.
Solution Approach 2:
The vibration actuator is designed to operate within the existing working fluid circuit system, utilizing the circuit's infrastructure for mounting and operation. This self-service approach minimizes the need for additional supporting structures and systems, reducing manufacturing complexity and cost.
3Object-affected harmful factors
If existing sound compensation apparatuses are used, then sound waves can be compensated, but the system lacks versatility
Solution Approach 1:
The vibration actuator is designed to perform multiple functions: compensating for sound waves in the working fluid, generating acoustic warning signals for passers-by, and creating animal dispelling signals. This versatility allows the same apparatus to serve multiple applications including sound compensation, safety warnings, and environmental protection, significantly expanding the system's adaptability.
Solution Approach 2:
The system can dynamically adjust its function based on operational conditions, switching between sound compensation mode, passer-by warning mode, and animal dispelling mode. This dynamic adaptability allows the apparatus to respond to different situational requirements, enhancing its versatility across various应用场景.
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
The solution effectively reduces sound emissions in vehicles, providing a cost-effective and versatile method for sound compensation, enhancing vehicle safety and reducing noise pollution, while also enabling the generation of acoustic signals for passer-by warning and animal dispelling.
Implementation Method 1
a vibration actuator designed to at least partially compensate for sound waves in the working fluid of the working fluid circuit
Implementation Method 2
the compensation means reduction or elimination of the sound waves
Data Source
AI summary
A sound compensation apparatus having a working fluid circuit for cooling by a working fluid, a vehicle having such a sound compensation apparatus, a method for sound compensation, and to a method for sound emission. The sound compensation apparatus includes a vibration actuator designed to at least partially compensate for sound waves in the working fluid. The invention also relates to.