Cellular Relay Module for Extended Range Keyless Entry
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Solution Overview
Problem
Existing remote keyless entry systems for vehicles have limited range and require users to carry a separate key fob, which can be inconvenient, especially when combined with other electronic devices.
Innovation Solution
A communication system that uses a personal communication device to send a remote keyless entry command via a cellular network, which is received by a cellular network receiver in the vehicle and relayed as a remote keyless entry signal to the vehicle's keyless entry receiver, allowing vehicle operations such as locking, unlocking, or starting the engine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional key fob is used for remote keyless entry, then the vehicle can be controlled remotely, but the range is limited and users must carry a separate device
Solution Approach 1:
The patent merges the keyless entry functionality with the personal communication device that users already carry. The relay module receives commands from the personal communication device via cellular network and transmits them to the vehicle's keyless entry receiver, eliminating the need for a separate key fob while maintaining remote control capability
Solution Approach 2:
The relay module acts as an intermediary between the personal communication device and the vehicle's keyless entry system. It receives the control signal from the personal communication device, processes it, and transmits the appropriate keyless entry signal to the vehicle, enabling extended range operation without requiring users to carry additional devices
2Length of moving object
If a relay module with keyless entry transmitter is installed, then extended range is achieved, but installation complexity increases
Solution Approach 1:
The relay module is designed to work with existing keyless entry systems in vehicles, leveraging the already-present receiver and transmitter infrastructure. By integrating with rather than replacing the existing system, the module achieves extended range while minimizing installation complexity and maintaining compatibility with various vehicle models
Data Source
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AI summary
A system and in-vehicle communication module for relaying a remote keyless entry command from a cellular network to a vehicle keyless entry receiver. The module include a cellular network receiver configured to receive a remote keyless entry command from a cellular network; and a keyless entry transmitter located in the vehicle and in communication with the cellular network receiver. The keyless entry transmitter is configured to transmit a remote keyless entry signal to a vehicle keyless entry receiver in the vehicle in order to execute a vehicle operation. By sending a remote keyless entry signal to a vehicle remote keyless entry system, installation and engineering costs can be reduced.