Electronic Servo Actuator for Supercharger Boost Pressure Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional supercharger control systems lack precise control over boost pressure, relying on mechanical or electromagnetic clutch systems for on/off control or using control valves that only respond to pre-set pressure points.
Innovation Solution
An electronic supercharger pressure control system utilizing an electronic servo actuator coupled with a pressure relief valve, a manifold air pressure sensor, and an electronic control unit that provides closed-loop feedback for precise regulation of boost pressure to a user-defined level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mechanical or electromagnetic clutch systems are used to engage and disengage the supercharger, then the supercharger can be controlled to engage and disengage, but only on/off control is provided without precise pressure regulation
Solution Approach 1:
The patent replaces mechanical clutch systems with an electronic servo actuator that provides precise electronic control of the supercharger. The servo actuator uses electronic signals from a control unit to regulate boost pressure continuously rather than providing only on/off control, thereby substituting a mechanical control system with an electronic one that offers superior precision.
Solution Approach 2:
The patent implements a closed-loop feedback system where a pressure sensor continuously monitors boost pressure and feeds this information back to the electronic control unit. The control unit compares the actual pressure with the desired pressure level and adjusts the servo actuator accordingly to maintain precise pressure regulation, eliminating the open-loop nature of mechanical clutch systems.
2Ease of operation
If control valves are used to regulate exhaust gas flow to the supercharger turbine, then intake manifold pressure can be controlled, but only to pre-set pressure points without direct precise control
Solution Approach 1:
The patent replaces traditional control valves that regulate exhaust gas flow with an electronic servo actuator directly controlled by an electronic control unit. This substitution allows for direct electronic control of the supercharger rather than indirect control through exhaust gas flow regulation, providing precise continuous pressure control instead of responses only at pre-set pressure points.
Solution Approach 2:
The patent implements a feedback control system where a pressure sensor continuously monitors boost pressure and provides real-time feedback to the electronic control unit. The control unit processes this feedback and dynamically adjusts the servo actuator to maintain the desired pressure level, enabling precise regulation rather than response only at pre-set points.
3Ease of operation
If vacuum and exhaust-based actuators are used, then supercharger control is provided, but only at pre-set pressure points without active adjustment to maintain steady pressure
Solution Approach 1:
The patent replaces vacuum and exhaust-based actuators with an electronic servo actuator that responds directly to electronic control signals. This substitution enables active continuous adjustment of the supercharger to maintain steady pressure, rather than passive response only at pre-set pressure points where vacuum or exhaust pressure changes occur.
Solution Approach 2:
The patent implements a closed-loop feedback system where a pressure sensor continuously monitors boost pressure and provides real-time feedback to the electronic control unit. This feedback enables the system to actively detect pressure deviations and make continuous adjustments to maintain steady pressure, rather than relying on pre-set pressure points where vacuum actuators naturally respond.
4Measurement precision
If an electronic servo actuator with closed-loop control is used, then boost pressure can be regulated precisely to within 1 PSI, but system complexity increases
Solution Approach 1:
The patent implements a closed-loop feedback control system where a pressure sensor continuously monitors boost pressure and feeds this information back to the electronic control unit. The control unit compares actual pressure with the desired setpoint and dynamically adjusts the electronic servo actuator to maintain precise pressure regulation within 1 PSI, achieving high precision through systematic feedback control.
Solution Approach 2:
The patent replaces simpler mechanical control systems with an electronic servo actuator controlled by an electronic control unit. While this increases device complexity, it enables precise electronic control with continuous adjustment capability, achieving boost pressure regulation within 1 PSI that cannot be obtained with simpler mechanical systems.
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 system achieves precise control of boost pressure within 1 PSI of the user-set level, allowing for optimal engine performance tuning while protecting against over-boost conditions.
Implementation Method 1
an electronic servo actuator coupled to a supercharger pressure relief valve. The electronic servo actuator is controlled by a feedback loop to regulate boost pressure
Implementation Method 2
The electronic control unit receives a manifold air pressure signal from the sensor and determines the current manifold air pressure
Implementation Method 3
The electronic servo actuator is coupled to a supercharger pressure relief valve and controls the valve position to maintain the desired boost pressure
Implementation Method 4
Superchargers are commonly used to increase the power output of internal combustion engines by compressing the intake air to higher than atmospheric pressure
Data Source
AI summary
An electronic supercharger pressure control system for internal combustion engines, designed to enhance engine performance by precisely regulating the boost pressure to user-defined levels. The system features an electronic servo actuator connected to a supercharger pressure relief valve, allowing for dynamic adjustment of the valve's position to control boost pressure accurately. A manifold air pressure sensor measures air pressure, providing feedback to an electronic control unit. The electronic control unit is further linked to a user input device equipped with a potentiometer knob and button, enabling the user to set and adjust the desired boost pressure level easily. The system operates by receiving and analyzing manifold air pressure signals and user-defined boost settings, adjusting the relief valve via the servo actuator to maintain boost pressure within a specific range.