Vehicle Control Device Seamless Mode Transition

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Solution Overview

Problem

Existing vehicle control systems require frequent switching between driver-operated and automated control modes, necessitating manual operation of a travel assistance switch, which is cumbersome for drivers.

Innovation Solution

A vehicle control device that synthesizes driver operation amounts and automated control targets to set a unified target value for vehicle travel, eliminating the need for manual switching and enhancing control responsiveness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If frequent switching between driver-operated and automated control modes is performed, then control flexibility is improved, but operational complexity increases due to manual switch operation

Engineering Contradiction:
Improvecontrol flexibilityVSAvoidoperational complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system automatically detects driver intent through accelerator pedal operation and autonomously switches between automated control and driver-operated control modes, eliminating the need for manual switch operation. The travel assistance switch operates independently to sense driver wishes and trigger mode transitions automatically.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors accelerator pedal operation amount and driver inputs to detect willingness to control, using this feedback to automatically determine when to switch between control modes. This closed-loop feedback mechanism enables seamless transitions without manual intervention.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If automated control is used exclusively, then driver workload is reduced, but responsiveness to driver intent decreases

Engineering Contradiction:
Improvedriver workloadVSAvoidcontrol responsiveness
Core Design Contradiction:
Ease of operationVSSpeed

Solution Approach 1:

The control system dynamically adjusts between automated control and driver-operated control based on real-time detection of driver intent through accelerator pedal operation. When driver input exceeds thresholds, the system transitions to driver-operated mode, ensuring responsive adaptation to changing driver needs while maintaining low workload during automated operation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10315654B2Vehicle control device
Publication Date: 2019.06.11 DENSO CORP
  • US10315654B2 patent drawing
  • US10315654B2 patent drawing
  • US10315654B2 patent drawing

AI summary

Provided is a vehicle control device including an operation amount obtaining unit, a first setting unit, a second setting unit, and a third setting unit. The operation amount obtaining unit obtains a driver's driving operation amount. The first setting unit sets a first target value for vehicle travel control based on the driving operation amount obtained by the operation amount obtaining unit. The second setting unit sets a second target value for controlling the vehicle travel by automated control. The third setting unit sets a third target value for actually controlling the vehicle travel by synthesizing the first target value and the second target value based on the driving operation amount or the first target value.