Color-Changing Ignition Light for Clear EV Start State
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Solution Overview
Problem
Electric vehicles face issues with excessive energy consumption and unclear ignition states due to automatic activation upon key detection, leading to unnecessary wear and difficulty in determining the vehicle's readiness to start.
Innovation Solution
A luminous device integrated into the vehicle's ignition system, which allows powertrain activation only when the key is present and the device is operated, featuring a color-changing mechanism to indicate the ignition state visually, eliminating the need for simultaneous brake pedal pressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic activation is implemented when key is detected, then ease of operation is improved, but energy consumption increases excessively
Solution Approach 1:
The luminous device activates periodically or on-demand rather than continuously. It illuminates only when needed (during ignition state changes or when driver interaction is detected), allowing the powertrain system to remain in low-power state during extended periods when the vehicle is not being operated, thus resolving the contradiction between ease of operation and energy consumption
2Ease of operation
If ignition button is added to assist drivers, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The luminous device is integrated into the existing ignition button or steering wheel structure, combining the indicator function with the existing control element. This merging approach provides the necessary visual indication without adding separate complex components, thus improving ease of operation while minimizing increase in device complexity
3Loss of information
If luminous device changes color to indicate ignition state, then loss of information is reduced, but manufacturing cost increases
Solution Approach 1:
The luminous device utilizes color-changing capability to convey ignition state information clearly to the driver. By integrating this function into the existing button or indicator structure rather than adding separate complex display systems, the patent reduces information loss while keeping manufacturing costs relatively low through the use of standard color-changing LED or display technologies
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a simple and energy-efficient way to manage ignition, extends vehicle autonomy, and clearly communicates the vehicle's operational state through color changes, enhancing driver awareness and reducing unnecessary power consumption.
Implementation Method 1
a luminous device (7) integrated into an ignition system (6) of the powertrain system (5) and configured to provide a visual indication of a state of ignition of the road vehicle (1) to a driver
Data Source
AI summary
Road vehicle comprising an ignition system for the powertrain system comprising in turn a luminous device integral with the passenger compartment of the road vehicle and comprising a movable part configured to move between an off configuration and an on configuration; the luminous device comprising a display device configured to at least partially assume a first colour and a second colour; wherein the display device is configured to switch from the first colour to the second colour when the movable part switches from the off configuration to the on configuration and vice versa when the movable part switches from the on configuration to the off configuration.