Intra-Vehicle Wireless Control to Simplify Wiring Looms
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Solution Overview
Problem
Modern vehicles require increasingly complex electrical harnesses to control various systems, which can be costly and prone to multiple system failures due to the use of serial communication buses like CAN and LIN, where a single fault can lead to widespread system failures.
Innovation Solution
A communication system that employs a master control system and slave control systems connected via wireless communication, reducing the complexity and cost of wired connections by using ultra-wideband transceivers for efficient data transfer and enabling two-way communication between the master and slave control systems, allowing for direct control of vehicle systems without the need for extensive wired channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If serial communication buses (CAN, LIN) with twisted pair cabling are used for intra-vehicle communication, then communication reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces the mechanical wired communication system (twisted pair cabling, connectors, physical harnesses) with a wireless communication system using ultra-wideband transceivers. This substitution eliminates the need for complex physical wiring while maintaining communication functionality, directly resolving the contradiction between reliability and device complexity.
2Stability of the object's composition
If extensive wired connections are provided for each slave control system, then communication stability is improved, but ease of manufacture deteriorates
Solution Approach 1:
The wireless communication system replaces extensive wired connections with radio frequency communication, eliminating the need for manual wiring assembly. Slave control systems can be installed without complex connection procedures, significantly improving ease of manufacture while maintaining communication stability through the robust ultra-wideband protocol.
3Loss of information
If twisted pair cabling is used for communication, then signal integrity is improved, but loss of substance increases
Solution Approach 1:
The patent substitutes physical cabling with wireless electromagnetic signal transmission, completely eliminating the consumption of twisted pair cable materials. Signal integrity is maintained through the use of ultra-wideband technology which provides robust communication without requiring physical medium.
4Device complexity
If daisy-chain arrangement is used for slave control systems, then device complexity is reduced, but reliability deteriorates
Solution Approach 1:
The patent implements independent wireless communication channels for each slave control system rather than a shared daisy-chain bus. Each transceiver operates independently, so a fault in one slave system does not propagate to others, improving reliability while maintaining manageable system complexity through modular architecture.
Data Source
AI summary
A communication system for intra-vehicle communication in a host vehicle includes a master control system including a master controller and a master transceiver, the master control system being configured to receive an input signal to control an on-board vehicle system. The communication system has a slave control system associated with the on-board vehicle system, the slave control system comprising a slave controller and a slave transceiver. The master transceiver and the slave transceiver are configured to establish wireless communication between the master control system and the slave control system. The master control system is configured to receive the input signal and to generate an output signal based on the input signal; and to transmit the output signal to the slave control system to control operation of the on-board vehicle system.