Active Mount Actuator Plate Control via Swashplate Mechanism
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Solution Overview
Problem
Existing active mounts in vehicles face limitations in response speed and vibration control due to reliance on resilience for restorative force, leading to potential noise generation and low volume change rate, which affects vibration insulation performance.
Innovation Solution
The active mount incorporates a plunger coupled to a first rod rotated by a motor unit, with a swash plate and counterweight to enhance physical coupling and reduce friction, allowing for precise control of actuator plate displacement and increased volume change, thereby improving response speed and suppressing unnecessary vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If resilience is used for restorative force in active mounts, then the structure is simpler, but the response speed is slower and vibration control is reduced
Solution Approach 1:
The patent replaces the traditional mechanical resilience-based restorative force system with an active control system using actuators (electromagnetic or electric motors) that generate controlled vibrations. This substitution enables faster response speed and better vibration control by using electronic control signals instead of passive mechanical elasticity.
2Object-affected harmful factors
If resilience is used for restorative force, then the structure is simpler, but unnecessary vibrations and noise are generated
Solution Approach 1:
The patent eliminates the resilience-based mechanical system that generates unwanted vibrations and noise, replacing it with an active actuator system that produces controlled, precise vibrations only when needed for vibration damping, thereby reducing harmful vibration noise.
Solution Approach 2:
The active mount incorporates feedback control mechanisms where sensors detect vibration levels and the ECU adjusts actuator operation accordingly, ensuring vibrations are generated only when necessary for damping, thus minimizing unnecessary vibrations and noise.
3Productivity
If traditional actuator design is used, then the structure is simpler, but the volume change rate is low and vibration insulation performance is reduced
Solution Approach 1:
The patent employs dynamic actuator designs (such as rotating unbalanced weights or reciprocating plungers) that actively vary the volume of liquid chambers at controlled frequencies and amplitudes, enabling higher volume change rates that improve vibration insulation performance compared to static or slow-response designs.
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
This configuration enhances response speed, reduces vibration noise, and allows for more precise control of the actuator plate, resulting in improved vibration damping performance.
Implementation Method 1
an actuator, formed with a coil or the like for generating electromagnetic force to enable the plunger to be pulled by attracting force
Implementation Method 2
a swash plate defining a center hole therein and having shaft protrusions protruding from both sides of a periphery thereof, wherein the first rod is disposed in the center hole and the rotation retention portion is engaged to the swash plate such that the first rod is rotatable around the periphery of the swash plate
Implementation Method 3
an actuating plate made of a resilient material is coupled to the orifice plate, and a plunger is further installed to vibrate the actuator plate
Implementation Method 4
a liquid filled type that is filled with hydraulic fluid and uses viscosity according to the movement of the hydraulic fluid to dampen vibrations
Data Source
AI summary
An active mount structure may include an actuator coupled to an actuator plate coupled to an orifice plate within a housing, wherein the actuator includes a plunger coupled to the actuator plate, a first rod rotatably coupled to a bottom of the plunger and rotated by a first motor unit, wherein the first rod includes a rotating shaft rotatably coupled to the plunger, one side of the rotating shaft extending to form an extending portion, and a rotation retention portion formed at the extending portion, a swash plate defining a center hole therein and having shaft protrusions, wherein the first rod may be disposed in the center hole and the rotation retention portion may be engaged to the swash plate, and a second rod engaged at the swash plate and raised or lowered by a second motor unit, wherein the shaft protrusions may be rotatably coupled to the housing.