The following is a class record:
Why OTA is the only way intelligent network car strategy?
From the perspective of the intelligent car network, for the automotive industry, intelligence, security and user experience are the common pursuit of all, and this is also the core concept of the company. From an intellectual point of view, with the intelligent The constant popularization and continuous evolution require OTA technology to update the algorithm and the performance of some specific programs. From a security point of view, OTA needs to make up for information security vulnerabilities. From the perspective of user experience For more information, you need to continuously optimize the user experience through OTA.
In our opinion, the development of smart car networking is not accomplished in a single step. OTA must be the prerequisite and foundation for the development of smart car networking. In other words, if a car does not have the ability to iteratively upgrade itself, it can not, strictly speaking, Called the true sense of the intelligent network of cars.
OTA and car intelligence network together strategy
With the development of intelligence, the software is getting higher and higher in the car.According to a group of Morgan Stanley data, in the current development stage of the car, the hardware occupy most of the cost of the car, nearly 9% Cost share of 10. With the development of automotive networking and intelligent development, the cost and proportion of software in the automotive interior are constantly being improved.In the next 2025, the cost components of automotive software will be hardware, software and content, respectively, The ratios are expected to be 40%, 40% and 20% respectively.
If the content is also seen as another form of software, cost software in the car of the future which has more than hardware, which is a software-defined concept of the origin of the car. With the development of this trend, we buy cars at the time No longer just concerned about the performance of automotive hardware, but also more concerned about the software experience provided by the car, as well as the content of the ecology.In this sense, the OEM is very urgent need a car software management system or automotive software life cycle Of the management system to auto software assets from R & D to the next iteration of the process of unified management.
The status of domestic auto industry upgrading
After 2016, valid complaints about the problem of domestic software upgrade car received endoplasmic reticulum, has also been involved in more than one hundred models, 450 point of failure. It is obvious from the description owners, the software update is slow, poor update process experience, upgrade Emergence of new issues, a direct impact on the trust of the owners and the actual experience, and even threatened driving safety.
From the perspective of the content of specific complaints, for the domestic car prices, car entertainment navigation and car interconnection systems and car remote control system this is a breakthrough of domestic brands to enhance product image, but it will become the owner of the current complaints are more concentrated one area. so from the current domestic car prices, the urgent need to set the future can be resolved customer complaints system and platform issues through remote upgrades.
The main requirements of domestic OEMs for OTA include potential software bug problems, software emergency risk response and emergency repair of software vulnerabilities related to information security.
The introduction of new features is also the OTA upgrade needs.On the one hand, some specific car networking features, you can use a gradual approach to promote and push to the owner.Another part of the original features such as human-computer interaction Performance improvement, as well as image recognition performance improvement.
Of course, OEMs also hope that OTA will become a tool to enhance the user experience, which is mainly reflected in the enhancement of customer satisfaction by optimizing human-computer interaction and content delivery OTA.
OTA: the only way through which smart internet joint strategy
Recently, major domestic and foreign car companies have released their own 2020 or 2025 car construction strategy in these strategies are basically the same steps, but the time point is slightly different, basically divided into the following four steps:
The first step is mainly content and services in this part mainly focused on building and improving the ability of car networking.Mainly through the establishment of a personal account system for owners, the Internet cloud services moved to the car to provide customers with the basic services of the Internet .
In the second phase, the depot will select some of the basic platforms for OTA and diagnostic services, mainly to build a software-auto-update capability on the automotive side and a platform for the server-side automotive OTA system to lay a solid foundation for future iterations of some functions of the car networking basis.
The third step is that many OEMs will introduce L3-level advanced driver assistance vehicles that will gradually evolve toward LCD-level performance by constantly optimizing the performance of driver assistance through the already-built OTA capabilities. Through the OTA way to collect and handle more tracking driving some of the big data.
Ultimately, the ultimate goal of all is the realization of v2x capabilities and the ultimate realization of autonomous driving, in the process of realization, the performance of autonomous driving technology and the evolution of v2x's own standards and the interaction between vehicles and vehicles Some of the security, must also rely on the OTA technology through the OTA technology, car networking can become a real sense of the smart terminal, the car network can become a big data, intelligent computing and content and service capabilities into one The next generation of car networking.
OTA and Automotive Information Security
Speaking of OTA, can not talk about the car information security. OTA and information security is an inseparable whole .On the one hand, OTA need car information security system escort, OTA is also on the other to solve the car information security risks and loopholes The best tool.
As the most effective way to solve the security breach problem in the future, OTA must first ensure the security of its own system.We have accumulated rich FOTA cloud management through in-depth cooperation with vendors of security infrastructure (PKI / CA, KMS) and security service vendors End of the information security and implementation of adaptation experience.
The standard OTA management platform we have provided has been tested and optimized for multiple rounds with security service vendor partners and provided security capabilities such as KMS in cooperation with security infrastructure vendors to ensure that our customers can be tested during the testing phase Experience OTA-related security services.
We have reached strategic cooperation with many car network security vendors since the product development phase to provide customers with safe and stable solutions and have jointly released the Internet Alliance with 360 Automotive Safety Labs, Kyrgyzstan Taichung and United Automotive Electronics Safety concept car overall solution.For the OEM future independent independent manufacturers of security options, Ella will be customized to adapt and service experience to ensure the efficiency of adaptation.
Realization and Challenges of Automotive OTA
For the automotive OTA system, the device side and the cloud are the most basic components.In the equipment side we mainly provide equipment-side upgrade system construction, the definition of the upgrade process, upgrade capabilities to build, upgrade the transport protocol, but also to take into account the upgrade process The resulting design of human-computer interaction.
In the cloud, the core function is to collect and organize the information uploaded by the car, match the big data platform at the same time, and carry out the detailed delivery and control for each car matching the best upgrade package and the execution sequence of the upgrade package At the same time for the entire upgrade process unified management to ensure the success of bulk upgrade.
Of course, there are many challenges in the implementation of OTA, including several aspects of the content.First of all, for the depot, the different levels of depot information and cloud management is not the same, we must be tailored custom made.
In addition, for different car models and platforms, different models may mean that there are different upgrade executive entities, different ECU upgrade capabilities, and different bus architectures, which also need to be customized.
Second, the OTA system is not an isolated entity in the planning of the depot, and it needs to get through with other systems to play a greater role.In the interconnection with other management systems, the system needs further investigation and research To define the data interaction process and command interface.
Thirdly, from the depot's point of view, the depot not only wants to upgrade the firmware inside the car through the car platform, but also wants to integrate the upgrade of the application and the content through an upgrade system. How to build a Set a unified OTA management platform, the firmware upgrade, application upgrades and content upgrades for different models for personalized management, which is currently with the host plant to build a complete set of solutions.
Finally, from the customer's point of view, how to make OTA a consumer expectation, like the mobile phone and the Internet of Things ecosystem, builds OEM ecosystem around OTA, which is the ultimate goal of many OEMs.
The following is the Q & A session, combined with the questions from the majority of micro-friend to answer:
Question 1: OTA is to solve the problem of downloading or brushing This part is also involved? (Remote) brushing and OTA relationship OTA is not only to solve the download problem. Brush this part of the car itself is part of the OTA system, for the car interior Embedded ECU's actual computing power and space utilization, we must use the brush to write the actual firmware update.Question 2: On the OTA, Chinese and foreign car prices are how the current layout and OTA future market space?
From our own perspective as an OTA service provider.
For overseas markets, Tesla is the most thorough and benefited technology company currently undergoing OTA strategy and after entering China in 2014, only Model S models have been upgraded to eight major iterations each time Have brought the experience of new functions to the customer.So far, Model S series although already released five years ago the car, is still in the forefront of intelligence in the industry.
For other overseas traditional car prices, at present in the high-end models have been equipped with OTA APP and content through the upgrade function, for the popularity of low-end models and the future firmware upgrade also have a very clear plan.Same SAIC The 2016 Roewe RX5, a passenger car released by the passenger car, is a typical representative of the OTA-capable cars in China.
Like SAIC-GM, this year also released their 2025 strategy. OTA is also an important strategic objective to invest and build. Currently we are working with SAIC, and we also have some cooperation with BYD and JAC Specific models, have supported the OTA function.
From the perspective of market space, we believe that with the development and popularization of car networking and intelligentization, OTA function will surely become the standard of the future connected car, so the market space is huge.
Question 3: OTA reduces the opportunities for car dealers to contact with vehicle owners, thereby reducing secondary sales opportunities and impacting the traditional car sales model.
OTA does reduce the opportunities for dealers to reach out to car owners, but the reduction of such opportunities is what they expect from car manufacturers and car owners because owners do not want to see this frequent escalation of software He wants to frequent the 4S shop from the depot's point of view, they also do not want because of software upgrades, leading to their future risks of the entire recall and the cost of the recall is not controlled.But whether the impact on the traditional car sales model, OTA technology itself should not be.
Question 4: How to verify OTA security? Application in differential algorithm.
The verification of security is mainly through signature and encryption and decryption based on public key and private key.First, the vehicle will verify the cloud and carry out two-way identity verification to verify the identity.At the same time, the signature of the technology to verify the source of the entire upgrade package Of the legitimacy.At the same time to decrypt, through the encryption and decryption technology to protect the upgrade package itself does not leak.Application in the differential algorithm, at present, the differential upgrade ability or incremental upgrade is mainly used in the car's intelligent ECU equipment Inside, such as car machine, Tbox, instrumentation, including some auxiliary driving ECU, which is currently implemented in our project some more equipment.
Question 5: Because of the OTA data volume will lead to changes in CAN / LIN bus communications adopted by the car, the use of Ethernet or FLEXRAY bus to adapt to the transfer?
The transmission of upgrade packages between smart devices must necessarily be transmitted in the future via a high-speed bus such as Ethernet or FLEXRAY, and the protocol of the upper software transport is also defined on the basis of the capabilities of the transmission.
Q6: What are the current security and protocol standards and certifications for the implementation of OTA? There are two questions that can be answered. One is the security standard and the other is the protocol standard. For the security aspect Standard, many car manufacturers will choose their own security encryption standards, signatures and the entire authentication process based on their actual demands, but also the mature system of reusing some of the traditional industries.For the standards and certification of the protocol, at present Said that there is no clear definition of the country.We mainly based on the actual demands of the depot to adapt to different requirements for the OEM agreement to provide different programs.We can provide OMA DM solutions, Privatization may be provided as agreed upon by the depot's privatization.
Question 7: As a mature technology in the field of consumer electronics, OTA in the automotive industry, what are the difficulties?
Mainly divided into two parts to describe.A part of the difficulty of the car side, mainly because the entire car plant and the car's actual structure of some of the equipment's ability to be different, must be based on the actual car architecture and bus architecture to customize And now many car factory design goals are the goal of vehicle upgrades or a large number of ECU will be his goal of upgrading.That so the future of the entire test cycle and investment Is very large.Difficulty in the cloud, mainly lies in the car depot own internal information management system such as some different systems or different depots have different stages of the system, then the docking and the actual implementation of the future have had a lot of customization The amount of work.
Q8: Is OTA refreshing usually initiated by TBOX or initiated by the gateway? If the gateway is initiated, how is the protocol between the TBOX and the gateway established?
Our current implementation of the project which have, depending on the vehicle architecture.If the current implementation of the vehicle is a mature model or a mature platform, if the gateway for a particular model is only a transparent type of gateway, then sure Is initiated by the TBOX device.If a newer model uses a gateway specifically designed for OTA to do some brush writing optimization, it is initiated by the gateway.Now we have reached a strategy with some of the major domestic manufacturers of intelligent gateways Cooperation.As for the agreement between TBOX gateways, we will provide a standard version of the agreement, the future can also be based on the actual demand of the depot to carry out specific customization.
Q9: Which nodes are currently required to support OTA?
Mainly depends on the depot planning, the depot node for the OTA will be divided into different stages to be implemented from the current point of view, the node supporting OTA mainly for intelligent equipment and non-critical parts ECU.For example, machine, TBOX , Air conditioning, PEPS, in the long run, the depot is also planning remote capabilities such as PP, chassis and some key components ECU.
Q10: Is the current OTA upgrade in intelligent driving support for all program algorithm upgrades including decision-making unit, environmental awareness and data processing upgrades, or just partial upgrades?
From the smart driving of this unit point of view, we OTA upgrade can do the perception layer, decision-making processing layer and the control output layer of a comprehensive upgrade.But from the actual cooperation with some domestic depot forward-looking Institute of view, the current OTA Capacity is also mainly concentrated in the decision-making level, which can be subdivided into planning and decision-making control and decision-making. Intelligent driving OTA upgrade for many forward-looking Institute, has a very strong appeal.
Question 11: OTA for the transmission of large files there will be any problems? What are the measures?
First of all, from the depot's point of view, the first point is the cost of transmission time and the cost of traffic, which is the most direct problem.Second, the future sales of vehicles in all parts of the country and even around the world, so the future for large file transfer there is a The issue of distribution efficiency.Third, the internal bus bus for large file transfer efficiency issues.
Q12: How does the car company correlate the formal and unexpected OTA upgrade with its own R & D cycle and how to make overall plans?
From the depot, OTA is a must, but the development cycle is very tight.As a depot perspective, the research and development cycle is short, there may be many problems that may arise in the future, so OTA is necessary to have some of the basic Ability.This will be able to effectively solve the problem of short cycle and future vehicle functions and more.
However, in actual OTA construction, OTA itself also needs time to construct, especially considering the automobile end, and also depends on the operation of the cloud. Under such a short period, it is necessary to wait for the cloud platform to be built. We also provide some extra services to OEMs to provide some standard version of OTA management platform specially designed for testing system.Electrical and electronic departments in the front of the depot can use the standard version of these platforms to solve their own front end Dilemma of long development cycle, can help the depot to enhance their own efficiency of such research and development to protect their own research and development cycle.
Of course, the more important point in overall planning is empiricism. As the most important point of domestic OTA service providers, we also provide more experience. Through our own experience, to avoid some problems that may arise in the future, which is also Very crucial and core.
Question 13: OTA involved in the car-side architecture hardware platform? If the high and low with only high demand OTA can?
First of all, it depends on the depot. At the same time, as an OTA service provider, there may not be any problem of high allocation or low allocation in the future. Given the current planning of many depots 2020, the percentage of pre-shipment networking may be 100% High with low with the default network will be, so this is the future of many car manufacturers choose to TBOX as the core of the upgrade.
Question 14, OTA In addition to R & D in the actual business applications need to build an upgrade platform, more important whether the need for professional operations team to operate?
First of all, for the depot, a unified OTA management platform is a must.In the future through a unified automotive platform, the depot hope to get a lifetime investment returns, through a one-time construction and management platform, you can access all network-enabled models, which is The most immediate appeal of the depot.For the need for a professional operational team, many depots will set up a dedicated software management team to operate the actual management platform.
In addition to the depot's own professional operation platform, OTA service providers are also very important, and the key is to plan the clearer business and workflow for the depot through their own practical experience because the OTA management platform is not only for the specific vehicle range Provide upgrade, but also related to the testing, validation, approval and formally released work management processes and other issues.This part is the need for professional service providers to make reasonable plans for the depot.
About Elraby
ABUP Elabi Smart Technology focuses on smart, safe, evolutionary and innovative core technologies and focuses on providing professional OTA upgrade technology solutions and customized services to partners in the automotive and IoT domains to help partners improve their product competitiveness and promote product Intelligent development.
Founded on October 24, 2017 (World Programmer's Day), ABUP currently has a total of 60 people (85% of developers), well-known companies in the automotive, Internet of Things, and cloud services sectors, with professional device-side software Development capabilities and rich cloud services experience ABUP is committed to creating a one-stop car networking, Internet of Things OTA upgrade service platform: the cloud to AI + Bigdata technology-based, to provide customers with intelligent upgrade experience. Equipment for many years Software technology experience and customized services as the basis to ensure that customers with the best investment, the shortest possible time to get the most stable and reliable upgrade capability.