For example, "car card" has always been the focus of users' spit. As a result, LinkedIn announced in its official Weibo that recently, some netizens have reflected the problems related to the car experience on Weibo, and the company has been aware of them, and will give the owners a clear solution and timetable in the near future.
In fact, the problem of traffic jam has a long history. At the beginning of last year, some users complained directly on car home: "Lectra's car is rubbish, the worst stable car I have ever used." . In the process of use, many Lexus users reported that Lexus cars often crashed and there were various false positives. 2065438+In July 2008, a user on Chezhi.com complained in great detail that there was "serious commercial fraud" in Lexus:
We learned from the complaint number QT280320 of the automobile complaint network that there are the following problems, 1. There are many times when the car crashes when reversing, so it is impossible to view the reversing image; 2. Many times, the voice assistant suddenly popped up for no reason; 3. The automatic start-stop has been closed for many times, but the automatic start-stop is still valid; 4. There have been many false positives, such as the co-pilot's seat belt is not fastened (no one is sitting or putting anything), radar failure, sensor failure, automatic braking and so on. 5. There is no signal in a large area of the Internet of Vehicles; 6. After participating in the Lectra summer update, when automatic parking takes effect frequently, the car will slide forward; 7. After participating in the link summer update, the built-in dragonfly fm cannot link to the network; The 8.0 1 car engine system has been abandoned by lectra, and other models have used the jike system. The system of 0 1 has no practical app, which is inconsistent with the slogan of intelligent interconnection when it was first listed, and there is serious commercial fraud.
We also know that the in-vehicle system used by Lectra is a gauge chip, so what is a gauge chip?
If you ask some automotive engineers in traditional fields, such as those in charge of four-door shutters or interior and exterior decorations, you may be disappointed, because they will not be able to answer the question of "car regulations" for a while. At this time, you don't have to worry about being labeled as a poor student, because the origin of "car regulations" is quite special. The literal translation of "the level of automobile regulations" means to meet the standards of car use, just as chefs can't tell how to make chicken, duck and fish, and engineers in traditional fields can't care about these things, because everyone is used to eating them (using them in cars).
So what exactly do these standards mean? To sum up, it can be divided into the following parts.
The first part is to meet the verification standards of International Automobile Electronics Association (AEC). There are many divisions under this standard, and each standard number has detailed test standards for corresponding components, including AEC-Q 100 (integrated circuit IC), AEC-Q1(discrete components), AEC-Q 102 (discrete photoelectric led), and so on. AEC-Q 104 (multi-chip module) and AEC-Q200 (passive module). For example, the following figure shows 24 rigorous tests of automobile LEDs.
In addition to AEC-Q, another specification to be followed is the ISO formulated by the International Organization for Standardization (ISO) at 20 1 1. 26262 is mainly used in functional safety parts, such as sensors and systems related to ADAS. Is it in line with IATF zero failure supply chain quality management standards? Specification 16949. If the above requirements are a set of labels formulated by the electronic and electrical industry to enter the automobile industry itself, then IATF? 16949 is the auto industry standard rooted in Hong Miao.
The automobile quality management systems in different countries are not exactly the same, and the global supply of parts and materials is prone to multiple certification audits. What about IATF? 16949 was popularized. In order to obtain this set of access standards, it actually takes a lot of efforts. For example, in February this year, TüVNORD Bedcai, an international standard certification body, officially awarded Baidu IATF 16949:20 16 quality management system certification certificate.
The car chip used in Link 05 is five years behind.
The chip used in Link is 820A, which is five years behind, compared with 40? Nm process, 1.5? GHz？ Main frequency, 2G? RAM storage, Xiaolong 820A upgraded to today's 14nm technology, 2. 1Ghz frequency, 8G? RAM storage seems to have made remarkable progress. But you know, this is just a comparison with yourself, and the target is pulled back to the mobile phone chip. Taking the latest Snapdragon 865 as an example, its parameter specification has reached 7? nm？ Technology and main frequency? 2.42? GHz, maximum support 16G? Ram. So just from the technical parameters, automobile chips have lagged behind the latter for a long time.
This "five years" may be the main reason why the use experience of both electric vehicles and traditional fuel vehicles is far less "smooth" than that of flagship mobile phones. So why can't car chips solve the growing functional requirements of corresponding users with a year of rapid technical iteration, just like mobile phone chips? There may be something hidden behind this.
First of all, "high cost of trial and error" has become the primary reason. Similarly, taking Xiaolong 820A as an example, the most "advanced" car chip was launched in 20 16 Q 1 quarter, but the launch time of its first model Li one was delayed to 20 19 quarter. In the "lost" three years, the car company that chose to carry it has been doing the work of verifying the stability and feasibility of this chip and improving its matching maturity with the whole vehicle after carrying it.
Since the replacement cycle of smart cars and the cost of a single product are much higher than that of mobile phones, it is necessary for car companies to choose and use a car chip, which must be "foolproof" after loading, because they can't bear the impact of the "Snapdragon 8 10" fault case in the mobile phone industry, and they can't realize the rapid error correction of some mobile phone manufacturers after the case appears.
In addition, it is assumed that the replacement cycle of smart cars is six years. During this period, the on-board chip is faced with the brand-new functions that the vehicle has continuously realized after OTA, and the demand for computing power is increasing, which has almost become an inevitable problem. In other words, even if many car companies adopt the best performance in-vehicle chips at this stage, they still cannot meet the continuous "computing power demand" for several years after product delivery. This embarrassing situation has become a "pain point" that they must face.
Summary: The working conditions of automobile products are quite different from those of other household products. Although the electronic and electrical components overlap, the emphasis will actually be different. Automobile products pay more attention to stability and reliability, which is also the focus of strengthening the standards of Vehicle Regulations. However, we consumers should not be deified by the "car classification" standard with rhythm. There are still many places to be improved in the current automobile market. Rational treatment and detailed comparison are definitely correct.
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.