Vehicle Smart Entry Receiver Power Cycle Control

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Solution Overview

Problem

Conventional vehicle control systems that stop the Smart Entry reception circuit to prevent battery deterioration also disable remote control functionality, reducing user convenience.

Innovation Solution

A vehicle control system that uses multiple power lines, detectors, and a controller to adjust the operation cycle of the receiver based on fuse connections, allowing for intermittent operation and power supply to specific equipment while minimizing power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the reception circuit of the Smart Entry control means is stopped completely to prevent battery deterioration, then power consumption is reduced and battery life is extended, but remote control functionality is disabled and user convenience decreases

Engineering Contradiction:

Improvepower consumptionVSAvoiduser convenience

Core Design Contradiction:

Use of energy by moving objectVSEase of operation

Solution Approach 1:

The reception circuit operates intermittently at predetermined intervals instead of continuously, allowing the system to maintain remote control functionality while significantly reducing power consumption and preventing battery deterioration during long-term vehicle storage

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The operation state of the reception circuit is dynamically adjusted based on vehicle usage conditions - completely stopped during long-term storage to save power, and operated periodically or continuously when the vehicle is in use to ensure remote control functionality

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If the reception circuit operates continuously to maintain remote control functionality, then user convenience is improved, but power consumption increases and battery deteriorates

Engineering Contradiction:

Improveremote control functionalityVSAvoidpower consumption

Core Design Contradiction:

Ease of operationVSUse of energy by moving object

Solution Approach 1:

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS10442305B2Vehicle control system

Publication Date: 2019.10.15 HONDA MOTOR CO LTD

AI summary

A system includes; a first power line connectable with a first fuse and feeds electric power from a battery to a controller; a second power line connectable with a second fuse and feeds electric power from the battery to the controller; a first detector that detects whether the first fuse is connected; a second detector that detects whether the second fuse is connected; and the controller that causes specific equipment to operate upon detection of receipt of a signal by a receiver that operates intermittently to receive signals from a mobile terminal. The controller sets a cycle of operation of the receiver to a first cycle when the first fuse is connected, and set the cycle of operation of the receiver to a second cycle longer than the first cycle, when it is detected that the first fuse is not connected, and the second fuse is connected.