Engine Control Device Preventing Battery Deterioration via Continuous Discharge Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing control devices for internal combustion engines fail to adequately prevent battery deterioration when the battery residual amount is insufficient, as they only prohibit automatic stops based on current consumption without addressing continuous discharge, leading to premature battery degradation.
Innovation Solution
A control device that includes a discharge amount detection section and a continuous discharge amount detection section, which prohibits automatic stops when the continuous discharge amount exceeds a second setting value lower than the first setting value, ensuring the internal combustion engine continues to drive the electricity generator and charge the battery, thereby preventing battery deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the automatic stop function is used to improve fuel efficiency, then fuel consumption is reduced, but the battery residual amount becomes insufficient and battery lifetime deteriorates
Solution Approach 1:
The control device performs preliminary action by detecting continuous discharge amount before the battery becomes fully depleted, and proactively prohibits automatic stop when the continuous discharge amount reaches or exceeds the second setting value. This preventive approach ensures the battery is recharged before critical depletion occurs, resolving the contradiction between fuel efficiency improvement through automatic stop and battery lifetime preservation.
Data Source
AI summary
There is provided a control device for an internal combustion engine. An electricity generator is configured to be driven by the internal combustion engine. A battery is configured to store electricity generated by the electricity generator. A discharge amount detection section is configured to detect a discharge amount of the battery. An automatic stop control section is configured to automatically stop the internal combustion engine when the discharge amount is a first setting value or less. A continuous discharge amount detection section is configured to detect a continuous discharge amount of the battery based on the discharge amount. An automatic stop prohibition section is configured to prohibit an automatic stop when the continuous discharge amount is a second setting value or more, which is lower than the first setting value.