Adaptive Step Width for Vehicular Display Response

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Solution Overview

Problem

Conventional vehicular manipulation apparatuses experience delays in updating the displayed temperature setting after user input, causing a strange feeling for the user due to the time lag between manipulation and the display change, especially with larger temperature adjustments.

Innovation Solution

A vehicular manipulation apparatus with a manipulation unit, communication unit, display unit, and controller that transmits and receives control parameter values, and broadens the change width between display steps when the manipulation amount exceeds a threshold, allowing for quicker display updates by incrementing values more significantly when larger adjustments are made.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the display unit transitions step-by-step from the present set temperature to the latest set temperature, then the display accuracy is improved, but the response time deteriorates

Engineering Contradiction:
Improvedisplay accuracyVSAvoidresponse time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent applies dynamics by making the display transition method adaptive rather than fixed. The controller dynamically selects between step-by-step transition and direct display of the latest set temperature based on the magnitude of temperature change. When the temperature change exceeds a predetermined threshold, the system switches to direct display mode, optimizing response time for large adjustments while maintaining step-by-step transitions for smaller changes to preserve display accuracy.

Inventive Principle:
Principle #15Dynamics

2Measurement precision

If the controller displays the change step-by-step with a fixed change width, then the display accuracy is improved, but the productivity deteriorates

Engineering Contradiction:
Improvedisplay accuracyVSAvoidupdate speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent makes the change width dynamic by adjusting it based on the manipulation amount. When the manipulation amount exceeds a predetermined threshold, the controller broadens the change width between steps, allowing the display to cover larger temperature ranges more quickly. This dynamic adjustment optimizes productivity for large temperature adjustments while maintaining sufficient display accuracy through controlled step widths for smaller changes.

Inventive Principle:
Principle #15Dynamics

3Reliability

If the displayed image is not changed until the change result is received from the vehicular air-conditioning apparatus, then the reliability is improved, but the ease of operation deteriorates

Engineering Contradiction:
Improvedata accuracyVSAvoiduser experience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies preliminary action by displaying a provisional set temperature immediately after manipulation, before the actual change result is received from the air-conditioning apparatus. The controller calculates and displays this provisional value based on the manipulation amount, providing immediate feedback to the user. Once the actual change result is received, the controller updates the display accordingly, ensuring data accuracy while improving ease of operation through timely visual feedback.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10744846B2Vehicular manipulation apparatus
Publication Date: 2020.08.18 DENSO CORP
  • US10744846B2 patent drawing
  • US10744846B2 patent drawing
  • US10744846B2 patent drawing

AI summary

A vehicular manipulation apparatus, which manipulates a different apparatus, includes a manipulation unit, a communication unit, a display unit, and a controller. The manipulation unit accepts a manipulation and inputs a set value step-by-step for controlling the different apparatus. The communication unit communicates with the different apparatus, transmits manipulation information to the different apparatus, and receives a set value of the different apparatus. The display unit digitally displays the set value. The controller controls an image on the display unit using the set value. In displaying change due to the manipulation step-by-step, the controller broadens a change width between steps in cases where the manipulation amount within a threshold period of time is equal to or greater than a threshold manipulation amount, as compared with cases where the manipulation amount within the threshold period of time is less than the threshold manipulation amount.