Turbo-Boost Intake Control for Delayed Waste Gate Release

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Solution Overview

Problem

Factory turbocharged engines release manifold pressure at a predetermined level, undesirably dropping available power, necessitating a system to maintain higher turbo-boost for enhanced power output.

Innovation Solution

A turbo-boost controlled intake system with a control module that processes input signals from turbo inlet and manifold absolute pressure sensors to increase manifold pressure before release through the waste gate, using a wiring harness and signal adjuster for manual or automated power control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If the waste gate releases manifold pressure at the manufacturer-specified level, then the engine operates within factory parameters, but the available power level drops undesirably

Engineering Contradiction:
Improveengine power outputVSAvoidmanifold pressure control
Core Design Contradiction:
PowerVSEase of operation

Solution Approach 1:

The patent introduces a control module as an intermediary device between the waste gate and the manifold pressure system. This module intercepts and modifies the waste gate control signal to delay pressure release, thereby maintaining higher manifold pressure and boost levels without directly modifying the waste gate or other factory components.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the factory's mechanical/electrical waste gate control system with an electronic control module that uses sensor feedback and programmable logic to manage manifold pressure. This substitution enables precise control over pressure release timing, allowing the system to maintain optimal boost levels for enhanced power output.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Stress or pressure

If the waste gate releases manifold pressure at manufacturer-specified levels, then the system operates as designed, but turbo-boost is lost prematurely

Engineering Contradiction:
Improvemanifold pressureVSAvoidduration of turbo-boost
Core Design Contradiction:
Stress or pressureVSLoss of time

Solution Approach 1:

The control module performs preliminary action by pre-intercepting the waste gate control signal before the factory-specified pressure release point is reached. By modifying the signal in advance, the system delays pressure release and extends the duration of high manifold pressure, thereby maintaining turbo-boost longer and preventing premature power loss.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback control system that continuously monitors manifold pressure through a dedicated sensor and adjusts the waste gate control signal accordingly. This closed-loop feedback ensures that manifold pressure is maintained at optimal levels for the desired duration, extending turbo-boost persistence while preventing premature pressure release.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If factory parameters are used for waste gate control, then installation is simple, but control over power output is limited

Engineering Contradiction:
Improvepower output controlVSAvoidintake system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control module is designed as a universal device that interfaces with standard factory components (waste gate, sensors, ECU) without requiring custom modifications. It performs multiple functions including signal interception, pressure monitoring, and adaptive control, thereby providing enhanced power output control while maintaining compatibility with various vehicle platforms and minimizing system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4004357B1Turbo-boost controlled intake system
Publication Date: 2025.09.03 K&N ENGINEERING INC
  • EP4004357B1 patent drawingFigure 1
  • EP4004357B1 patent drawingFigure 2~3
  • EP4004357B1 patent drawingFigure 4~5

AI summary

A turbo-boost controlled intake system is disclosed that provides a driver of a vehicle with greater control over vehicle performance. The turbo-boost controlled intake system includes a control module that is coupled with an aircharger air intake. The control module instructs an electronic control unit of the vehicle to increase manifold pressure to a higher level before releasing the pressure through a waste gate so as to provide a greater power output of the engine. The turbo-boost controlled intake system further includes a wiring harness and a signal adjuster. The wiring harness couples the control module with a turbo inlet pressure sensor, a manifold absolute pressure sensor, and an electronic control unit of the vehicle. The signal adjuster includes a rheostat that enables manual adjustment of the power output of the engine.