Vehicle Locking Control Circuit Reduces Start-Up Delay
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Solution Overview
Problem
Existing electronic locking systems for vehicles experience long start-up times due to the need for microprocessor initialization, which delays system readiness and user access.
Innovation Solution
A control circuit operates the transmitter and receiver independently of the microprocessor, allowing communication to begin immediately, with a wake-up signal and area delimitation signals optimizing the system's operational efficiency and reducing start-up times by using integrated LF and HF circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a microprocessor is used to operate the locking system, then the system can perform complex authentication and control functions, but the start-up time increases causing noticeable delays for the user
Solution Approach 1:
The locking system is segmented into two independent parts: a microprocessor for complex authentication/control functions and a control circuit for immediate transmitter/receiver operation. This segmentation allows each component to perform its specific function without waiting for the other, resolving the contradiction between versatility and start-up time.
Solution Approach 2:
The control circuit is designed to operate the transmitter and receiver immediately upon receiving power, before the microprocessor completes its start-up sequence. This preliminary action ensures that communication can begin instantly while the microprocessor initializes, eliminating the delay that previously occurred.
2Reliability
If the microprocessor is initialized before communication, then the system ensures stable and reliable operation, but the operational readiness is delayed
Solution Approach 1:
The system separates reliability-critical functions (handled by the control circuit immediately) from functions requiring full microprocessor initialization (authentication and control). This segmentation allows the system to provide immediate response while maintaining reliable operation through the control circuit's independent functionality.
Solution Approach 2:
The control circuit acts as an intermediary between power supply and the microprocessor, enabling immediate transmitter/receiver operation. This intermediary component ensures that communication can start instantly while the microprocessor prepares for stable operation, bridging the gap between speed and reliability requirements.
3Ease of operation
If the transmitter and receiver wait for microprocessor readiness, then the system ensures proper coordination and control, but communication delay occurs
Solution Approach 1:
The control circuit performs preliminary actions by operating the transmitter and receiver immediately upon power receipt, before microprocessor initialization completes. This preliminary operation eliminates communication delay while the microprocessor prepares for coordinated control functions.
Solution Approach 2:
The control circuit is designed to autonomously manage transmitter and receiver operations without waiting for microprocessor commands during the initialization phase. This self-service capability allows immediate communication setup, improving ease of operation while reducing delay.
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 enables instantaneous communication and reduced start-up times, making the KeylessEntry/Go system independent of microprocessor initialization, enhancing security and user experience with faster access and response times.
Implementation Method 1
have transmitters and/or receivers for the transmission of the electromagnetic signals
Implementation Method 2
The control circuit operates the transmitter and receiver independently of the microprocessor for at least a portion of the communications between the two devices
Data Source
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AI summary
The invention relates to a locking system (3), especially for providing authorization to access and/or drive a motor vehicle (1), in the manner of a keyless entry/go functionality, and comprises a first device (4), such as a control device, and an associated second device (5), in the form of an electronic key, an ID transmitter, a chip card or the like. Both devices (4, 5) have transmitters and/or receivers especially for electromagnetic signals (7) for their intended use. The first device (4) has a microprocessor for operating the transmitter and/or receiver. The first device (4) is provided with an integrated circuit (32) in the form of an ASIC. At least at the beginning of the communication session between the two devices (4, 5) the transmitter and/or receiver in the first device (4) is operated by means of the integrated circuit (32) at least until the microprocessor (31) is operative.