Controllable Compression Component Standby Speed Control
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Solution Overview
Problem
Existing drive systems with internal combustion engines face challenges in quickly adjusting boost pressure during no-load or partial-load operations to meet sudden load requirements, leading to slow torque buildup and increased energy consumption.
Innovation Solution
Operating a controllable compression component at a standby speed when internal combustion engine torque is below a predetermined level, allowing for quicker adjustment of boost pressure and torque generation with reduced energy consumption, using an electrically operated compression component such as an additional electric compressor or exhaust gas turbocharger with an external electric drive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the compression component is operated only when full load is required, then energy consumption is minimized, but the response time to load requirements deteriorates
Solution Approach 1:
The compression component is activated before full load is actually required, operating at a standby speed during no-load and partial-load operations. This preliminary action ensures that the compression component is already running and can quickly increase to full speed when load requirements arise, reducing response time while minimizing energy consumption compared to continuous operation at full speed
2Stress or pressure
If the compression component operates at full speed continuously, then boost pressure is maintained, but energy consumption increases
Solution Approach 1:
The compression component operates dynamically at different speeds depending on the operating condition. During no-load and partial-load operations, it runs at a reduced standby speed rather than full speed, adapting its performance to actual requirements and thereby reducing energy consumption while still maintaining adequate boost pressure when needed
Solution Approach 2:
The rotational speed parameter of the compression component is changed based on operating conditions. By operating at a standby speed during low-demand periods and only increasing to full speed when load requirements arise, the system optimizes the balance between maintaining boost pressure and minimizing energy consumption
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
Enables faster torque buildup and improved starting performance while reducing nitrogen oxide and soot emissions by achieving a desired gas composition, with energy consumption kept within limits.
Implementation Method 1
a controllable compression component for influencing a pressure in the air supply
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present invention relates to a method for operating a drive device (AV) comprising an internal combustion engine (1), an air supply (20) for supplying air to the internal combustion engine (1), and a controllable compression component (3) for influencing a pressure in the air supply (20). The method includes operating (82) the controllable compression component (3) at a standby speed (nBS) when the torque of the internal combustion engine is less than a predetermined torque.