Process-Based Hybrid Vehicle Mode Switching for Exhaust Control

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Solution Overview

Problem

There is a lack of effective methods for controlling hybrid vehicles with both engine and motor as driving sources during self-running production in manufacturing systems, which affects the efficiency and environmental impact of unmanned driving.

Innovation Solution

A control device that acquires process information, specifies the appropriate movement mode (engine or motor) based on the manufacturing process, and controls the vehicle to move in that mode, optimizing power consumption and environmental impact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the vehicle uses engine movement mode during manufacturing process, then power supply reliability is improved, but harmful factors (exhaust gas) increase

Engineering Contradiction:
Improvepower supply reliabilityVSAvoidexhaust gas
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The system changes the operating parameters of the hybrid vehicle by selecting different movement modes (engine-driven or motor-driven) based on the manufacturing process type. For automated manufacturing processes, the system selects motor movement mode to eliminate exhaust gas, while for manual processes, it selects engine movement mode to ensure power reliability.

Inventive Principle:
Principle #35Parameter changes

2Object-generated harmful factors

If the vehicle uses motor movement mode during manufacturing process, then harmful factors (exhaust gas) are reduced, but power supply reliability deteriorates

Engineering Contradiction:
Improveexhaust gasVSAvoidpower supply reliability
Core Design Contradiction:
Object-generated harmful factorsVSReliability

Solution Approach 1:

The system dynamically adjusts the power source selection parameter based on manufacturing process characteristics. When an automated manufacturing process is detected, the system switches to motor movement mode to reduce exhaust gas emissions. When a manual manufacturing process is detected, it switches to engine movement mode to maintain power supply reliability.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If the vehicle automatically adjusts movement mode based on manufacturing process, then productivity is improved, but device complexity increases

Engineering Contradiction:
Improveself-running production efficiencyVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The control device receives feedback information about the manufacturing process type (automated or manual) and automatically adjusts the vehicle's movement mode accordingly. This feedback mechanism enables the vehicle to adapt to different production environments, improving productivity while the control system manages the complexity of mode switching.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250231561A1Control device, control system, and control method
Publication Date: 2025.07.17 TOYOTA JIDOSHA KK
  • US20250231561A1 patent drawing
  • US20250231561A1 patent drawing
  • US20250231561A1 patent drawing

AI summary

A control device that controls an operation of a moving object that can move by unmanned driving includes: an acquisition unit that acquires process information indicating a manufacturing process that is being executed with respect to the moving object; a specifying unit that specifies using the process information which one movement mode of an engine movement mode of moving using an engine and a motor movement mode of moving using a motor to use to cause the moving object to move; and a control unit that causes the moving object to move in the specified movement mode.