Anvelopele viitoare vor avea senzori de uzura wi-fi conectati la telefon
- Senzorul viitorului comunica prin wi-fi
- Se lucreaza la dezvoltarea unor senzori de supra-sarcina
- Anvelopele vor fi mai sigure pana in 2017
Daca tot am spus mai devreme cum Dunlop vrea sa revolutioneze zgomotul la rulare punand o suprafata de spuma in anvelopa, trebuie sa va povestim si despre noutatea celor de la Continental. Ei lucreaza la pneurile cu senzori wi-fi.
In prezent, cele mai moderne vehicule stiu daca pneurile sunt desumflate sau daca au o presiune prea mare. Si asta se realizeaza cu ajutorul senzorilor de presiune din anvelope care comunica cu sistemul masinii. Continental vrea sa duca mai departe tot acest proces si va realiza in curand pneuri care contin senzori de uzura, dar si de sarcina.
Mai precis, in interiorul anvelopei va exista un senzor electronic ce va comunica cu sistemul multimedia si de monitorizare al masinii. Cand senzorul simte ca uzura suprafetei de rulare este scazuta, ajungand la dimensiunea minima de siguranta, il va avertiza pe sofer. La fel este si cu sarcina maxima pe care o roata o poate sustine. Sistemul va monitoriza presiunea rotii in viraje si isi va da seama daca aceasta este supra-incarcata sau nu.
Viitorul suna si mai bine in domeniul pneurilor. Si asta pentru ca in curand vom vedea anvelope inteligente care vor comunica direct cu telefonul soferului prin wi-fi. Adica soferul va avea instalata o aplicatie pe smart-phone iar senzorul din roata ii va da informatii despre presiune, sarcina, uzura si asa mai departe. Un lucru destul de util in contextul in care anvelopele reprezinta cea mai importanta masura de siguranta de pe masina noastra.
Pentru mai multe detalii, citeste mai jos comunicatul oficial Continental in limba engleza.
Continental In-Tire Sensors Read Tread Depth
Future tire pressure sensors read pressure, load and tread depth
Regensburg, May 7th 2014. The close cooperation between electronics and tire developers at Continental, the international automotive supplier, continues to bear fruit. Future tire pressure sensors, for instance, will be able to detect when a tire change is necessary due to insufficient tread depth. Explaining the importance of regular tread depth monitoring, Andreas Wolf, head of the Body & Security business unit, points out, "It's not for nothing that legislators all over the world have defined a minimum tire tread depth for safe driving. We are delighted that we will, in future, be able to conveniently read tread depth electronically with the aid of sensors embedded in the tires." Intelligent software makes the new feature possible. The software deduces tread depth from gradual changes in tire rolling characteristics. The in-tire pressure sensor infers running characteristics from the variations in tire deformation. The new feature is tentatively slated to be available as of 2017 in new vehicle models equipped with direct tire pressure monitoring systems (TPMS) from Continental (electronic Tire Information System, eTIS).
The secret behind tread depth detection
For this completely new type of electronic tread depth detection, Continental engineers draw on a tire's gradually changing rolling characteristics over a longer period of time. Tire and electronics developers conducted an intensive series of tests that allowed the basic data to be fed into the electronics of future vehicles. The specifics of the tires' altered rolling characteristics are compared with the accumulated empirical data. If the tread is run down to below a tire-specific threshold value, the on-board electrical system signals that a tire change is due.
If so desired, the vehicle's telematics module is even capable of informing the local auto service center. It goes without saying that people will still be able to check for themselves when the recommended or legally required minimum tread depth has been reached. For this purpose, the tire has wet-TWI (tread wear indicators). These are small ridges between the tread grooves that indicate that the brand manufacturers recommended minimum allowable tread depth (3 millimeters in summer tires, 4 mm for winter tires) have been attained.
Tires becoming intelligent
With the introduction of the first tire pressure sensors from Continental in 2002, the most important link between the vehicle and the road became intelligent .Since then, tire pressure sensors have been able to provide tire-by-tire information about the current tire pressure and conveniently warn drivers if tire pressure is too low. As of November 2014, a tire pressure monitoring system will become mandatory for newly registered passenger cars (Vehicle class M1) in the European Union. Tire sensors can help ensure optimum inflation pressure; this extends the life of a tire, reduces fuel consumption and, consequently, lowers CO2 emissions. Continental relies on these direct measuring systems with precise pressure display. With these, a sensor reads the tire pressure either at the valve or directly under the tire tread. If a second set of tires needs to be equipped with sensors, Continental already supplies the corresponding retrofit sensors under the VDO brand.
Continental extending the operational scope of future tire sensors
Continental is working with carmakers all over the world to further expand the range of features that in-tire pressure sensors can provide. Every tire loses air slowly but surely. The tire pressure sensor ensures that drivers are informed of tire pressure loss at an early stage. Therefore they do not run the risk of driving with one or more dangerously underinflated tires. Initial car models equipped with intelligent sensors from Continental automatically signal when a tire being inflated has attained the required tire pressure. The Filling Assistant is a big help when inflating tires and guarantees the right tire pressure even when non-calibrated filling stations are used. Rolling resistance is reduced as a result and the tires perform at their maximum capability in terms of safety and comfort.
Load detection gearing up for series production
Another feature about to be produced is load detection. Here, the vehicle uses software developed by Continental to specifically detect whether the maximum permissible load has been exceeded. This is very handy when setting off on vacation, for example. The electronics quickly detect a change in rolling characteristics due to excessive load and inform the driver of the respective axle load. Future driver assistance systems will use the load information to adjust their functions to the respective vehicle weight. Over the long term, this makes automated driving features safer still and even more convenient.
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