Tire Pressure Monitoring System - aeonSolutions/AeonLabs-AI-Volvo-MKII-Open-Hardware GitHub Wiki
Main Page >> Tire Pressure Monitoring System
Last change 11-02-2024
â status: not started >> PCB Design >> PCB fabrication >> Component assembly >> Testing
The open hardware electronics being designed and prototyped will have the capability and will be compatible with common cheap Tire Pressure Monitoring Systems sold on common e-commerce platforms such as Amazon, eBay, or any other, for instance, this one here sold on AliExpress. This means to install a TPMS in a car, is needed the 4x tire pressure sensors and a simple & easy reconfiguration of the car's electronics to add the tire pressure information to the Instruments cluster, Infotainment systems, and safety systems such as ABS and STC/ DSTC. The main objective is to enable installation at any tire replacement shop or mechanic. Alternatively as a DIY job.
Source: https://www.wikihow.com/Where-Is-the-Tire-Pressure-Sensor-Located
If you like this project and want faster development, prototyping, and testing consider a donation or sponsoring the project. Alternatively, one can buy and donate a TPMS to help and speed up the design of new open hardware electronics, prototype, and testing. Send me an email to [email protected] to know more. Include in the subject "open electronics for Volvo p2". Thank you ð.
1 Source: https://www.goodyear.com
There are three main types of tire pressure monitoring systems offered today:
- Direct TPMS: Direct systems monitor the pressure and temperature from within the tire using actual sensors to communicate with the vehicle's on-board receiver.
- Indirect TPMS: Indirect systems do not use a physical pressure sensor within the wheel to monitor the individual pressure, but in fact use the vehicle's ABS system to measure the rotational speeds of each tire. Minor tire pressure differences can cause one or more of the tires to rotate at a different rate than the others which is detected by the system and will cause the TPMS light to turn on. Defective wheel speed sensors or driving in slippery conditions can also cause the TPMS light to turn on with this type of system.
- Hybrid TPMS: Internal tire sensors work in conjunction with wheel speed sensors to help tell the driver (via a dashboard indicator) which tire is underinflated.
ðĒ Fully tested and working
A green circle means the hardware electronics or the programming code was fully tested, each of its functionalities and capabilities. And it can be installed in a vehicle. Keep in mind this does not mean errors won't happen. As in everything related to electronics and software, there are revisions and updates. This open hardware is no different.
ðŊ Fully tested & working, no improvements necessary - already being sold online
ð Fully Open hardware \ source code
ðĪŠ There's better than this. don't use it
ð Fully closed hardware \ source code
âĄïļ fully tested and working, however, it is a dangerous solution to deploy
ðĄ Not tested. Working capability is unknown, it may work or not.
A yellow circle means the hardware electronics or the programming code was not fully tested, each of its functionalities and capabilities. This does not mean it not working, it simply means testing is needed before giving a green circle of approval.
ðī Fully tested but not working.
A red circle means the hardware electronics or the programming code was fully tested, and found some kind of critical error or fault. This means the electronics or firmware code cannot be used in a vehicle.
â Not started.
The hourglass means the hardware electronics or the programming hasn't started. Most likely because is waiting for the necessary test components needed for reverse engineering and also engineering of the new open solution.
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