Vehicle Remote Start System with Fob Certification Timer
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Solution Overview
Problem
Conventional remote starting systems for vehicles increase convenience but fail to prevent theft when the vehicle is left unattended, as they do not ensure proper authorization for starting the vehicle.
Innovation Solution
A remote starting system that activates a timer upon opening the vehicle door, requiring certification via a fob when the driver's door is closed or a predetermined time has elapsed, and transitions from remote start to normal start mode only if the fob is certified, thereby preventing unauthorized use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If remote starting is enabled without additional authorization checks, then driver convenience is improved, but vehicle security deteriorates as thieves can easily steal the vehicle when left unattended
Solution Approach 1:
The system performs preliminary authorization verification by detecting fob presence through RFID communication before allowing the vehicle to start. The fob must be detected in the driver's seat area before the engine can be started, preventing unauthorized remote starting while maintaining convenience for authorized users
Solution Approach 2:
The system continuously monitors fob presence during the remote start operation and provides feedback control. If the fob is not detected or is removed during operation, the system automatically terminates the remote start and prevents normal starting, creating a dynamic security response that adapts to real-time conditions
2Reliability
If fob certification is required before allowing vehicle operation, then vehicle security is improved, but system complexity increases due to additional certification steps
Solution Approach 1:
The system merges the remote start function with the existing keyless entry and ignition systems by integrating fob detection into the current vehicle electronics. The same RFID reader used for door unlocking is utilized for engine starting authorization, consolidating multiple functions into existing hardware rather than adding separate complex systems
Solution Approach 2:
The fob serves multiple functions including door unlocking, engine starting authorization, and continuous presence verification. This multi-functional approach eliminates the need for separate authorization devices or systems, reducing overall system complexity while maintaining security
3Ease of operation
If the vehicle can be started remotely and left running, then driver convenience is improved, but the risk of theft increases when the driver does not operate the vehicle immediately
Solution Approach 1:
The system requires preliminary fob detection and verification before allowing the vehicle to start remotely. The fob must be present in the driver's seat area and authenticated through RFID communication before the engine can be started, ensuring that only the authorized driver can initiate remote starting
Solution Approach 2:
The system continuously monitors fob presence during remote operation through ongoing RFID communication. If the fob is removed or not detected, the system automatically terminates the engine and prevents normal starting operations, creating real-time feedback control that responds to changes in driver presence
Data Source
AI summary
Disclosed is a remote start system for a vehicle which activates a timer configured after a vehicle is remote started when a door of the vehicle is opened. After activating the timer, a fob (e.g., a keyless remote) is searched and certified once a driver's door is closed, a brake is operated, or a predetermined time has elapsed without any operation of the vehicle. Once the fob is certified, the vehicle is converted from a remote start mode to a normal mode. If, however, the fob is not certified the remote start is terminated.