[introduction] the function of contemporary car is increasing, new challenge also appears subsequently. Although functional security is in,car line of business is not a new task, but the elapse as time, it more and more be paid close attention to. Regard a design as the principle, the key of functional security depends on using an electron electric (E/E) when equipment, reduce its to bring the risk that person is harmed or human body health damages. Functional security principle devotes oneself to to resolve random hardware breakdown and systematic trouble — all carry a network with the car (IVN) the product is relevant.

The function of contemporary car is increasing, new challenge also appears subsequently. Although functional security is in,car line of business is not a new task, but the elapse as time, it more and more be paid close attention to. Regard a design as the principle, the key of functional security depends on using an electron electric (E/E) when equipment, reduce its to bring the risk that person is harmed or human body health damages. Functional security principle devotes oneself to to resolve random hardware breakdown and systematic trouble — all carry a network with the car (IVN) the product is relevant.

The development trend of near future of car line of business raised taller requirement to functional security. For instance, drive automatically need car take-overs drive the task make key decision. Driving automatically to be mixed to OEM manufacturer is unique opportunity for final user, but the high safe level that needs new solution to satisfy place to need.

The car that is based on aether net carries a network to transmit information of functional security key

New car trend is carrying a network in redefine car

The car carries a network to develop ceaselessly, the data bulk that with suiting to drive automatically the car brings increases. Data must be gotten easily and safe, so that undertake be handlinged in real time mixing decision-making, still need to reduce wiring harness cost and weight.

These change are changing a car to carry network framework, drive framework partition, namely car function is in dispersedly whole network, and more depend on communication ability. Opposite at be based on region before child the net, functional security is more important in communication network.

 

The electron in the graph is electric and divisional what the framework showed car function to go up in the network is dispersive distributing

Systematic function security and usability: Layer of aether net physics (PHY) how to provide support

As car function more dispersive change, the car carries a network to be in ensure the action of systematic function security and usability respect increases increasingly. Height of contemporary car need is reliable and net of backbone of high-speed data communication, and backbone net needs to come true through car aether net. The need of aether net component such as switching equipment and physical layer is compositive and advanced monitor and diagnose a function, in order to achieve systematic security and usability goal.

Of physical layer class advanced monitor and diagnose a function to be able to improve breakdown reaction in systematic layer class. Detect the time that breakdown place needs falls to lowest, of the system answer time to shorten. They still can strengthen fixed position of systematic level breakdown, the problem that because physical layer can label,any likelihoods hamper its move normally. Union of these two kinds of methods conduces to in response is made to systematic level breakdown inside short time as far as possible.

Network IC function can prevent, forecast and answer breakdown circumstance, make significant contribution for functional security. The standard such as ISO26262 is evaluated for functional security provided necessary guidance. ISO26262 defined the method that functional security system develops; Besides a few average standard that contain serial communication give typical examples, without specific systematic requirement.

Car aether net supports prospective software to define a car. Zhi Pu of detailed knowledge favour’s whole aether web solution.

TJA1103 brief introduction: Favour wisdom riverside accords with the layer of aether net physics of ASIL B first times

Because the car carries a network,will issueing aspect of security of generation car function to continue to produce main effect, favour wisdom riverside will take the quality of network component and dependability seriously more. Accordingly, network component is open must abide by ISO26262, with reducing the risk that creates because of breakdown of electronic electrical system.

Favour wisdom riverside has long evolution history in car line of business, accumulated deep professional knowledge, can abide by ISO26262 to develop a product, the functional security that is a system and usability provide support. Favour wisdom riverside will roll out a money accord with ASIL B standard can expand TJA1103 of parts of an apparatus of physical layer series.

The development of TJA1103 accords with ISO26262 standard, conduce to prevent systematic breakdown, ensure all and relevant function installs full text archives to be able to be used at the same time. Diagnose deploy in the process that start to be in hardware oneself, can avoid potential trouble and support random failure to detect. If be used in functional security environment, the wrong announcement function of TJA1103 allows main control implement make corresponding response and restore a system. If cannot restore, the partial setting that will suffer an effect is safe condition, in order to ensure the safety of network others corresponds. Such, the dependability of the network and quality can get promotion, realize safe communication.

Author:

 

Jakob Smonig

Manager of market of product of semiconductor of favour wisdom riverside

Jakob Smonig is the product market manager that the car holds network product line, the global market sale that product of network of aether of responsible 100BASE-T1 car sets. He ever held the position of project manager in IVN operation branch, be in charge of optimizing production. Jakob has Austrian case to pull electrician of Ci technology university Cheng and commercial master’s degree.

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