Auxiliary Power Boost Circuit for Engine Starting Reliability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional engine ignition or fuel injection systems face voltage drops due to high starting current, leading to poor ignition or engine starting issues when battery power is insufficient, requiring inefficient external power assistance.
Innovation Solution
A combustion and emergency starting control system with an auxiliary power storage device and isolation diode to isolate battery power, combined with an emergency starting switch and direct current boosted boost circuit to ensure stable voltage for the ignition and fuel injection systems, enabling the auxiliary battery to drive the starting motor and boost voltage for successful engine starts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the starting motor draws high current during engine starting, then the engine can be started, but the battery voltage drops substantially (25-40%), causing poor ignition or slowed fuel injection device switch speed
Solution Approach 1:
The patent segments the power supply system into two independent parts: the starting battery dedicated to the starting motor, and the auxiliary power storage device dedicated to the ignition device and fuel injection system. This segmentation prevents the voltage drop in the ignition system caused by high starting current draw, as each subsystem has its own power source.
Solution Approach 2:
The auxiliary power storage device acts as an intermediary power source that specifically supports the ignition device and fuel injection system during engine starting. When the starting motor draws high current, the auxiliary power storage device compensates by providing additional power to maintain voltage levels in the ignition system, thus preventing voltage drop without interfering with the starting motor operation.
2Reliability
If the starting battery power is insufficient, then external power assistance is needed, but this is inefficient and inconvenient
Solution Approach 1:
The auxiliary power storage device enables the system to be self-sufficient during engine starting. When the starting battery power is insufficient, the auxiliary power storage device automatically activates to provide the necessary power support, eliminating the need for external power assistance and allowing the engine to start reliably without human intervention.
3Reliability
If a dedicated auxiliary power source is installed for the ignition device, then voltage drop is prevented and ignition reliability is improved, but the device complexity increases
Solution Approach 1:
The patent merges the auxiliary power storage device into the existing power supply system architecture, integrating it with the starting battery through a control unit that manages power distribution. This merging approach allows the system to benefit from dedicated power supply for the ignition device while maintaining a unified and manageable system structure, avoiding excessive complexity.
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
Prevents voltage drops in ignition and fuel injection systems, ensuring reliable engine starts even with insufficient starting battery power, and provides enhanced starting capability by boosting voltage when needed.
Implementation Method 1
installation of isolation diode to isolate battery power for starting motor
Implementation Method 2
voltage boost of the direct current boosted boost circuit device 600 will enable the ignition device or the fuel injection device to step up voltage
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention is an installation of an emergency starting switching device and/or direct current boosted boost circuit device. When the power of the starting battery is insufficient, the electric energy of the auxiliary battery is used to drive the starting motor in order to start the engine by operating the emergency starting switching device. And when the engine is started, the voltage of the ignition device or the fuel injection device is stepped up to strengthen its starting capability by means of a voltage boost by the direct current boosted boost circuit device.