Vehicle Emergency Start Control With Remote Immobilizer Coil
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Solution Overview
Problem
The integration of an immobilizer coil into an electronic shift-by-wire (SBW) lever in a column type vehicle configuration poses challenges for emergency starts, as it complicates the application of power for key fob authentication, and there is a need for enhanced theft warning and verification mechanisms.
Innovation Solution
An apparatus and method that utilize sensors and a processor to detect occupant presence, unlock doors, apply power to the immobilizer coil, and output theft warnings, ensuring that the vehicle can only perform an emergency start after verifying the vehicle owner's authentication through a message transmission process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the start button is integrated into the electronic SBW lever in a column type configuration, then the moving line between steering wheel and transmission is reduced and space is effectively used, but it becomes difficult to incorporate the immobilizer coil into the start button
Solution Approach 1:
The system separates the start button function from the immobilizer coil function. The start button is integrated into the SBW lever, while the immobilizer coil is placed in a separate location (such as the key inserting hole area or dashboard). This segmentation allows each component to be optimized independently while working together for the emergency start function.
Solution Approach 2:
The key fob serves as an intermediary element that bridges the separated start button and immobilizer coil. When a mechanical key in the key fob is inserted into the key inserting hole, it triggers the immobilizer coil to activate, which then enables the start button function remotely, allowing emergency start without direct integration.
2Ease of operation
If power is applied to the immobilizer coil for key fob recognition, then emergency start can be performed, but theft warning and verification mechanisms are needed to ensure vehicle owner authentication
Solution Approach 1:
The system implements feedback mechanisms through theft warning signals and verification processes. When the immobilizer coil is activated and key fob recognition is attempted, the system provides feedback in the form of warning signals to alert the vehicle owner. Additional verification steps are required before allowing engine start, ensuring that only authenticated owners can perform emergency start.
Solution Approach 2:
The system performs preliminary verification actions before allowing emergency start. Theft warning signals are activated and verification processes are initiated before the immobilizer coil fully engages for key fob recognition. This preliminary action ensures that the vehicle owner is notified and authenticated before the emergency start function is activated, preventing unauthorized use.
Data Source
AI summary
An apparatus for controlling a vehicle includes at least one sensor that acquires information related to a door and information related to a seat, and a processor that unlocks the door by a mechanical key, determines the door as being open based on the information related to the door, and applies power to an immobilizer coil to recognize the key fob, when determining an occupant seated as being sensed at a driver seat, based on the information related to the seat.