Vehicle Controller Integrating Standard and Long-Range Wireless Communication
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Solution Overview
Problem
Existing vehicle wireless communication systems face challenges in integrating standard applications like RKE, PASE, and TPMS with long-range applications due to differing frequency bands, modulation methods, data transmission rates, and antenna requirements, making it difficult to implement a single, cost-effective, and scalable controller for all functions.
Innovation Solution
A controller with separate transceiver units optimized for standard and long-range applications, each with its own receiver and transmitter units, antennas, and a shared control unit that manages both, allowing for flexible operation modes and antenna diversity to meet the diverse technical demands of various applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate control units are used for standard applications and long-range applications, then each application can be optimized independently, but the system complexity and cost increase
Solution Approach 1:
The patent combines multiple transceiver units (first for standard applications like RKE/PASE, second for long-range applications) and a control unit into a single integrated controller. This merging approach maintains the optimization benefits of separate units while reducing overall system complexity and cost by sharing common components such as the control unit, antenna interface, and processing resources.
Solution Approach 2:
The integrated controller is designed to handle multiple functions through a universal architecture. The control unit can manage both standard applications (keyless entry, engine start) and long-range applications (remote diagnostics, software updates) through a single device, making the system multi-functional while avoiding the need for separate dedicated control units for each application type.
2Device complexity
If a single controller is used for all functions, then cost and complexity are reduced, but it becomes difficult to meet diverse technical requirements of different applications
Solution Approach 1:
The controller is segmented into distinct functional modules: a first transceiver unit for standard applications with specific frequency and modulation requirements, and a second transceiver unit for long-range applications with different technical parameters. This segmentation allows each module to be optimized for its specific application while being managed within a single integrated controller, maintaining adaptability without sacrificing integration benefits.
Solution Approach 2:
The controller employs dynamic switching and configuration capabilities where the control unit can selectively activate and configure different transceiver units based on the required application. This dynamic adaptability allows the single controller to meet diverse technical requirements by adjusting its operational mode, frequency, and modulation parameters according to the specific application demands.
3Reliability
If different frequency bands and modulation methods are used for standard and long-range applications, then each application achieves optimal performance, but the antenna and controller design becomes more complex
Solution Approach 1:
The control unit acts as an intermediary that manages the interaction between different transceiver units operating on different frequency bands and modulation methods. It coordinates their operation, handles frequency switching, and manages antenna allocation, thereby enabling optimal communication performance for each application type while abstracting the complexity from the overall system design.
Solution Approach 2:
The system employs parameter changes by configuring different transceiver units with specific frequency bands, modulation methods, and power levels optimized for their respective applications. The control unit dynamically adjusts these parameters based on the active application, allowing optimal communication performance while managing the complexity through programmable configuration rather than hardware complexity.
Data Source
AI summary
Controller for a motor vehicle for wireless communication with a least one peripheral unit with a least one receiver unit (1) for receiving radio signals for standard applications and at least one receiver unit (2) for receiving radio signals for long-range applications which are emitted by the peripheral unit at different frequencies for the standard applications and the long-range applications. With a least one antenna (ANT1) for one of the two receiver units (1, 2) respectively and with a control unit (4) for controlling the two receiver units (1, 2) as well as for evaluating signals from the two receiver units (1, 2).