Standardized Mobile Key for Vehicle Control Systems
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Solution Overview
Problem
Existing vehicle control systems face challenges in standardizing mobile keys, leading to increased part numbers and costs, as well as slower response times due to different communication systems between mobile terminals and vehicles, and poor usability due to varying button functions and specifications across different vehicle models and markets.
Innovation Solution
A vehicle control system that includes a vehicular device with a communication unit and an acquisition unit to transmit vehicle state information to a mobile key, which has an operation unit and an information generation unit to set operation commands based on the vehicle state, allowing for standardized mobile key configurations and reduced part numbers without the need for a mobile terminal, thus maintaining fast response times and enhanced usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different mobile key specifications are used for different vehicle models and markets, then button functions can be customized, but the number of part numbers increases and standardization is reduced
Solution Approach 1:
The mobile key is designed with a fixed hardware configuration that can perform multiple different functions through software programming. The same physical buttons can be assigned different operations depending on the vehicle model and market requirements, eliminating the need for multiple hardware variants while maintaining customization capability.
Solution Approach 2:
The invention changes the operational parameters (button functions) through software configuration rather than hardware modification. By programmatically assigning different operations to the same physical buttons, the system achieves adaptability across different vehicle models and markets without increasing part numbers.
2Ease of operation
If a mobile terminal is used to communicate with the vehicle via wireless LAN or public communication line, then remote control is achieved, but response time increases due to communication delays
Solution Approach 1:
The mobile key acts as an intermediary device that maintains direct proximity communication with the vehicle through short-range wireless communication. This eliminates the need for long-distance wireless LAN or public network communication, achieving both remote control capability and fast response time by using the mobile key as a local mediator between the user and the vehicle.
3Ease of operation
If a mobile terminal with different communication system is added to enable remote control, then remote operation is achieved, but cost increases due to additional communication units
Solution Approach 1:
The mobile key integrates multiple communication capabilities into a single device. It combines short-range wireless communication for direct vehicle control with the ability to interface with various vehicle systems, eliminating the need for separate communication units and reducing overall system cost while maintaining remote operation capability.
Solution Approach 2:
The invention merges the functions of remote control, authentication, and vehicle state monitoring into a single mobile key device. By combining these previously separate functions into one integrated unit, the system reduces the number of communication units needed and lowers overall system cost.
Data Source
AI summary
A vehicle control system includes a vehicular device mounted to a vehicle and a mobile key carried by a user. The vehicular device includes: a vehicular device communication unit communicating with the mobile key, and an acquisition unit acquiring vehicle state information reflecting a state of the vehicle. The vehicular device communication unit transmits the vehicle state information to the mobile key. The mobile key includes: a mobile key communication unit communicating with an external device; an operation unit including operation buttons; and an information generation unit generating operation command information reflecting an operation command set for each of the operation buttons when the operation buttons are operated. The mobile key communication unit receives the vehicle state information. The mobile key further includes a setting unit setting the operation command for each of the operation buttons based on the vehicle state information.