Vehicle ECU Power Control Under Sub-Battery Deterioration

Solution Overview

Problem

In vehicle processing systems, when the main battery power is interrupted due to a collision, there is a risk that high-priority processing may not be executed if the sub-battery's capacity has significantly deteriorated, leading to incomplete execution of vehicle processing tasks.

Innovation Solution

A processing apparatus and system that determine the degree of deterioration of the sub-battery and adjust processing tasks accordingly, ensuring high-priority tasks are executed even when the main battery power is interrupted by utilizing the sub-battery's remaining capacity effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the sub-battery supplies power to all processing apparatuses when the main battery is interrupted, then all vehicle processing can be executed, but the processing apparatuses cannot execute high-priority processing when the sub-battery's capacity has significantly deteriorated

Engineering Contradiction:

Improveexecution reliability of high-priority processingVSAvoidpower consumption capacity of sub-battery

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system pre-establishes a correspondence between the degree of deterioration of the sub-battery and the plurality of processes to be executed. When power supply is interrupted, the processing apparatus determines the current deterioration level and selects appropriate processes from the pre-defined correspondence, ensuring high-priority processing can be executed based on remaining battery capacity without requiring real-time complex decisions.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system changes the operational parameters of the processing apparatuses based on the sub-battery's deterioration level. By adjusting which processes are executed according to the battery's remaining capacity, the system optimizes energy usage to ensure critical functions remain operational while preventing complete power depletion.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If the processing apparatus executes all vehicle processing tasks when power supply is interrupted, then complete vehicle processing is achieved, but the system cannot adapt when the sub-battery's capacity is insufficient

Engineering Contradiction:

Improvecompletion rate of vehicle processing tasksVSAvoidadaptability to battery deterioration levels

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The system dynamically adjusts the set of executed processes based on the sub-battery's deterioration level. Rather than attempting to execute all tasks regardless of battery status, the processing apparatus adapts its operational scope by selecting processes from the pre-defined correspondence that match the current battery capacity, ensuring sustainable operation under varying conditions.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system pre-establishes a correspondence between the degree of deterioration of the sub-battery and the plurality of processes to be executed. When power supply is interrupted, the processing apparatus determines the current deterioration level and selects appropriate processes from the pre-defined correspondence, ensuring high-priority processing can be executed based on remaining battery capacity without requiring real-time complex decisions.

Inventive Principle:

Principle #10Preliminary action

3Reliability

If the system monitors and adjusts processing based on battery deterioration, then appropriate high-priority processing is executed, but the system complexity increases

Engineering Contradiction:

Improveexecution reliability of high-priority processingVSAvoidcomplexity of processing determination system

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system pre-establishes a correspondence between the degree of deterioration of the sub-battery and the plurality of processes to be executed. When power supply is interrupted, the processing apparatus determines the current deterioration level and selects appropriate processes from the pre-defined correspondence, ensuring high-priority processing can be executed based on remaining battery capacity without requiring real-time complex decisions.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20230373415A1Processing apparatus, processing system, and processing method

Publication Date: 2023.11.23 AUTONETWORKS TECH LTD

AI summary

Individual ECUs are mounted on a vehicle and execute processing using power supplied from one of a main power storage device and a sub power storage device. When a predetermined condition is satisfied, the processing unit of each individual ECU determines whether the supplying of power from the main power storage device has been interrupted. When it is determined that the supplying of power from the main power storage device has been interrupted, the processing unit of each individual ECU executes a process that corresponds to a degree of deterioration of the sub power storage device out of a plurality of processes.