Vehicle Navigation System Passenger Function Access
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Solution Overview
Problem
Existing vehicle navigation systems often restrict functions while the vehicle is in motion, which can be inconvenient for drivers and passengers, as they cannot easily access navigation features without compromising safety.
Innovation Solution
A navigation system with a user interface and controller that disables certain functions based on vehicle conditions, such as speed, and provides warnings to users, allowing passengers to access these functions by detecting their presence through occupant detection sensors and enabling them upon input recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If navigation functions are restricted while the vehicle is in motion, then driving safety is improved, but user convenience deteriorates
Solution Approach 1:
The navigation system dynamically adjusts its operational state based on detected conditions. When a passenger is detected via occupant detection sensors, the system transitions from a restricted state to an enabled state, allowing full navigation functionality. This dynamic adaptation resolves the contradiction by making the system flexible rather than statically restricted, maintaining safety when appropriate while enabling convenience when safe
Solution Approach 2:
The system introduces an intermediary verification mechanism (occupant detection sensors and controller logic) that mediates between the conflicting requirements of safety and convenience. The intermediary verifies the user identity and vehicle conditions before granting access to navigation functions, ensuring that convenience is only provided when safety conditions are met
2Ease of operation
If navigation functions are fully accessible, then user convenience is improved, but driving safety deteriorates
Solution Approach 1:
The system applies different access conditions to different user roles. Drivers face restricted access to navigation functions while moving, whereas passengers face no such restrictions. This local differentiation of access rights allows the system to provide convenience to passengers without compromising driver safety, resolving the contradiction through role-based access control
3Adaptability or versatility
If occupant detection sensors are added to verify passenger status, then navigation function accessibility is improved for passengers, but device complexity increases
Solution Approach 1:
The occupant detection sensors serve multiple functions: they detect the presence of occupants, determine whether the occupant is in the driver or passenger seat, and provide this information to the navigation controller. By making the detection system multi-functional, the patent avoids adding separate dedicated sensors for each function, thereby reducing the overall complexity increase while achieving passenger-specific access capability
Data Source
AI summary
Disclosed herein is a navigation system for a vehicle. The navigation system includes a user interface configured to receive input from and output information to a user, and a controller configured to perform a plurality of functions based on the user input, the controller further configured to disable performance of at least one of the plurality of functions based on a vehicle condition and provide a warning to the user indicating that performance of the plurality of functions is to be performed by a passenger other than a driver, wherein the controller enables performance of the at least one of the plurality of functions upon receiving input signifying that the user is a passenger other than the driver.