Illuminated Vehicle Grab Handle with Integrated Keypad and Status LEDs
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Solution Overview
Problem
Conventional grab handles on vehicles lack integration with door locks and alarm systems, offering no visual or operational feedback on vehicle status or diagnostics, limiting their functionality and safety.
Innovation Solution
A grab handle with a keypad for keyless entry and integrated electrical circuitry that uses LEDs to indicate door lock status, alarm activation, and other vehicle settings, providing a sealed and durable solution with customizable keypad functions and illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional grab handles are used, then the structure remains simple and construction cost is low, but the functionality is limited to only providing illumination and grip without integration with door lock or alarm systems
Solution Approach 1:
The patent combines multiple previously separate functions into a single integrated grab handle assembly. The handle integrates the illumination function, keyless entry keypad, door lock control, and alarm system communication into one unified structure mounted at the door location, eliminating the need for separate control panels or switches elsewhere in the vehicle
Solution Approach 2:
The grab handle is designed to perform multiple functions simultaneously: it provides structural support for gripping, houses illumination LEDs for visibility, contains a keypad for keyless entry, controls door locking/unlocking, and communicates with the alarm system. This multi-functional design transforms a simple mechanical component into a comprehensive vehicle access and security control center
2Loss of information
If no visual feedback system is provided, then the device complexity remains low, but the user cannot obtain information about door lock status, alarm activation, or vehicle diagnostics
Solution Approach 1:
The patent implements a visual feedback system using LEDs that provide real-time information about vehicle status. Different LED colors and flashing patterns indicate door lock status (locked/unlocked), alarm activation state, and diagnostic information. This feedback loop allows users to immediately understand the current state of the vehicle's security systems without needing separate indicator lights or displays
Solution Approach 2:
The system uses different colored LEDs to convey different types of information: green LEDs indicate normal/secure states (door locked, alarm armed), red LEDs indicate alert states (door unlocked, alarm triggered), and yellow/orange LEDs provide warning or diagnostic information. The color-coding system enables rapid visual interpretation of vehicle status at a glance
3Ease of operation
If a keypad for keyless entry is integrated, then the security and convenience are improved, but the manufacturing cost and installation complexity increase
Solution Approach 1:
The keypad for keyless entry is integrated directly into the grab handle assembly, combining the access control function with the existing structural component. This eliminates the need for separate keypad housings, mounting structures, and wiring harnesses that would be required if the keypad were installed as a standalone unit on the vehicle body or door
Solution Approach 2:
The grab handle assembly serves as both a mechanical support structure for gripping and a housing for the electronic keyless entry keypad. This dual-use design allows the same physical structure to provide both mechanical utility and electronic control functions, reducing the total number of components and assembly steps required
4Loss of information
If multiple LEDs with different colors and flashing patterns are used to indicate status, then the information communication capability is improved, but the device complexity and power consumption increase
Solution Approach 1:
The system uses periodic flashing patterns of LEDs to convey different types of information efficiently. Different flash rates and patterns indicate different states: steady illumination for normal conditions, slow flashing for warning states, rapid flashing for alarm conditions. This temporal encoding allows multiple information states to be communicated using the same physical LED components, reducing the need for numerous continuously illuminated LEDs
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
Enhances vehicle access security, provides visual feedback on vehicle status, and allows for control of various vehicle functions, while being economical, easy to install, and ensuring safety through enhanced grip and diagnostics.
Implementation Method 1
one or more LEDs in one of the bases to illuminate the grab bar
Data Source
AI summary
A vehicle grab handle is provided to assist entry into the vehicle, such as an RV, semi tractors, emergency vehicles, utility vehicles, construction equipment and agriculture equipment and other vehicles. The handle includes a pair of spaced apart end bases and a grab bar extending between the bases. A keypad is provided in one of the bases to provide keyless entry into the vehicle or other controls of the vehicle. An LED is provided in the opposite end base so as to illuminate the grab bar. Multiple LEDs having different colors may be provided, with electrical circuitry connected to the door lock and to a vehicle alarm so that solid or blinking lights and different colored lights provide a visual display corresponding to the locked or unlocked status of the door, the activated or deactivated status of the alarm, or status of other vehicle accessories including diagnostics.