Tyre Sensor Redundancy for Heavy-Duty Vehicle Motion Control
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Solution Overview
Problem
Existing methods for providing redundancy in heavy-duty vehicle systems are costly and inefficient, particularly in terms of packaging and performance, as they often require duplicating critical components such as braking systems.
Innovation Solution
A redundant motion control system for heavy-duty vehicles that utilizes smart tyre technology, including tyre sensors and control units, to interpret output signals and provide independent control functions in case of primary system malfunction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two or more separate and independent braking systems are deployed to implement redundancy, then system reliability is improved, but device complexity and packaging space increase
Solution Approach 1:
The patent merges the redundant sensor system into the existing tyre structure by mounting sensors on the tyre surface, rather than creating a completely separate braking system. This allows redundancy to be achieved while sharing common components like the braking mechanism itself, thereby reducing overall system complexity and packaging requirements while maintaining reliability through alternative sensor pathways
2Reliability
If two or more separate and independent braking systems are deployed to implement redundancy, then system reliability is improved, but packaging space is consumed
Solution Approach 1:
The patent nests the redundant sensors within or on the tyre structure itself, which is already part of the vehicle's existing footprint. By placing sensors on the tyre surface and utilizing the tyre's own structure as the mounting platform, the system achieves redundancy without requiring additional external space or separate mechanical systems, thus conserving packaging space while ensuring reliability
3Reliability
If redundant sensor systems are implemented using traditional methods, then system reliability is improved, but cost increases
Solution Approach 1:
The patent makes the tyre structure serve multiple functions: it remains the load-bearing and motion-transmitting component while simultaneously serving as the mounting platform for redundant sensors. This multi-functionality eliminates the need for separate sensor housings and mounting mechanisms, reducing manufacturing costs while achieving the reliability benefits of redundant sensing systems
Data Source
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AI summary
A motion control system (300) for controlling one or more torque generating devices (320, 340) on a heavy-duty vehicle (100), the system (300) comprising a primary sensor system (380) with a primary sensor control unit (220, 385) configured to interpret an output signal (385) of the primary sensor system (380), one or more tyre sensor devices (210) mounted on, in, or in connection to, one or more tyres of the heavy-duty vehicle (100), and a tyre sensor control unit (350) configured to interpret an output signal (355) of the one or more tyre sensor devices (210), wherein the motion control system (300) is arranged to base motion control of the heavy-duty vehicle (100) on output data of the tyre sensor control unit (350) in case of malfunction in the primary sensor system (380) and/or in the primary sensor control unit (220, 385), and on output data of the primary sensor control unit (220, 385) otherwise.