PEPS Vehicle Secure Idle Mode Control
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Solution Overview
Problem
Passive entry/passive start (PEPS) technology-equipped vehicles are prone to being unintentionally left in a motive-enabled mode, leading to issues like excessive engine idling, battery drain, and increased risk of theft, as they do not require a physical connection for shutdown, unlike conventional ignition key vehicles.
Innovation Solution
Implementing vehicle control strategies that inhibit driveability and transition the vehicle to a secure idle mode when the driver is determined to have left the vehicle unattended, requiring authentication of a driver access code to resume motive-enabled mode, thereby preventing unauthorized use and energy wastage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If PEPS technology is used for vehicle operation, then ease of operation is improved, but reliability deteriorates due to increased possibility of unintentional leaving in motive-enabled mode
Solution Approach 1:
The system performs preliminary detection of driver presence or absence before allowing vehicle operation or shutdown. By detecting whether the driver is present in the vehicle cabin before enabling motive mode or allowing shutdown, the system prevents unintentional leaving in active state while maintaining PEPS convenience.
Solution Approach 2:
The system continuously monitors driver presence status and provides feedback control for vehicle operation states. The control module detects driver presence/absence and automatically adjusts vehicle operation mode accordingly, creating a closed-loop system that prevents erroneous shutdowns while maintaining ease of use.
2Ease of operation
If PEPS technology is used for vehicle operation, then ease of operation is improved, but loss of energy worsens due to excessive engine idling and battery drain
Solution Approach 1:
The system detects driver absence before allowing vehicle shutdown, preventing premature engine stop or battery disconnection. This preliminary detection ensures energy systems remain active only when needed, avoiding wasteful energy loss from premature shutdown while maintaining PEPS convenience.
Solution Approach 2:
The system uses feedback from driver presence detection to control energy system shutdown timing. By continuously monitoring driver status and responding with appropriate shutdown commands only when driver absence is confirmed, the system eliminates unnecessary energy consumption while preserving ease of operation.
3Ease of operation
If PEPS technology is used for vehicle operation, then ease of operation is improved, but security worsens due to increased risk of unauthorized driveway
Solution Approach 1:
The system performs preliminary verification of driver presence before allowing vehicle shutdown or operation mode changes. This preliminary check ensures that only authorized drivers can shut down the vehicle, preventing theft by unauthorized persons who obtained the transponder code, while maintaining PEPS convenience for legitimate users.
Solution Approach 2:
The system implements feedback control where driver presence detection results directly control vehicle operation authorization. The control module continuously monitors driver status and adjusts vehicle access control accordingly, creating a security layer that prevents unauthorized use while preserving ease of operation for authorized users.
Data Source
AI summary
A vehicle comprises a plurality of control module structures. A first control module structure is configured for determining a current motive mode of the vehicle. A second control module structure is configured for determining information indicating that a driver of the vehicle has left the vehicle unattended while the vehicle is in a motive-enabled mode. A third control module structure is configured for causing a secure idle mode to be implemented as a function of determining the information indicating that the driver of the vehicle has left the vehicle unattended while the vehicle is in the motive-enabled mode. Implementing the secure idle mode can include inhibiting the vehicle from being driveable until a driver access code is successfully received and authenticated by the vehicle.