Technical information｜TDA4 integrates travel and parking, opening a new chapter in intelligent driving

In the process of automobile intelligence, electrification, and connectivity, many first- and second-tier suppliers have emerged and flourished, introducing intelligent driving technology into real life. We see more cars equipped with powerful ADAS functions . In the process of transitioning from scene-centered autonomous driving technology to the driverless stage, more advanced autonomous driving solutions are becoming increasingly mature. Functions such as automatic parking (APA), home area memory parking (HAVP), traffic jam assist (TJA), high-speed driving assistance (HWA), automatic navigation assistance (NOA) and other functions have become familiar to ordinary car owners and are no longer professionals. People's talk on paper.

At present, we not only see some Tier 1 suppliers integrating low-level driving and parking functions into TDA4VM, but also see the evolution of the electronic and electrical architecture of vehicles from distributed to centralized. The multi-chip integrated driving and parking solution has been widely used. The integration of driving and parking from two separate systems into one system improves the functions and performance of the system while providing consumers with a seamless intelligent driving experience between multiple different scenarios. The mass production of the dual TDA4VM integrated driving and parking solution not only brings users an extraordinary experience, but also allows us to see the improvement of intelligent driving technology and huge imagination space.

The integrated parking solution based on dual TDA4VM has been put into mass production. At the same time, with the improvement of algorithm software maturity, the emergence of higher-performance chips, and system cost advantages, the single-chip TDA4 integrated parking solution has become an ideal choice for the integrated parking solution. Judging from the current form, there are two ways to achieve it: one is to implement a single TDA4 parking integrated solution based on a single TDA4VM or TDA4VM Eco with an AI computing power <= 8TOPS. This solution uses time-sharing multiplexing. To achieve an integrated parking solution, the sensor system can be configured as 5V5R or 6V5R; the other is a single TDA4 integrated solution with an AI computing power of 24~32TOPS based on a single TDA4VH or TDA4VM Plus, which has stronger computing power. More cameras can be connected.

The single TDA4VM/TDA4VM Eco driving and parking integrated solution is shown in the figure below. It needs to extract data from different sensors and convert it into driving intelligence of the vehicle. These sensors need to be equipped with different types of cameras, millimeter wave radars and ultrasonic sensors, etc. This solution shows the 5V5R solution, that is, 5 cameras and 5 millimeter wave radars. The number and type of sensors can be adjusted according to user needs.

The single TDA4VH/TDA4VM PLUS integrated parking solution is shown in the figure below. It has higher computing power (a single chip can reach 24-32TOPS) and can connect to more cameras. For example, the 10V5R solution below uses 10 cameras and 5 millimeter-wave radars to achieve an integrated driving and parking solution. The number and type of sensors can be adjusted according to the user's needs.

Functionality: A single chip can realize a variety of driving and parking functions

• In terms of driving, it can realize blind spot detection (BSD), door opening warning (DOW), lane departure warning (LDW), forward collision warning (FCW), intelligent high beam control (IHC), front cross traffic alert (FCTA), rear cross traffic alert (RCTA), rear collision warning (RCW), adaptive cruise control (ACC), lane keeping assist (LKA), manual lane change (PLC), traffic jam assist (TJA), highway assisted driving (HWA), automatic emergency braking (AEB), interactive highway automatic driving (HWP), interactive highway congestion automatic driving (TJP), automatic assisted navigation driving (NOA) and other functions;

• In terms of parking, it can realize functions such as panoramic function (AVM), automatic parking assist (APA), remote parking assist (RPA), and home area memory parking (HAVP).

Security: TI Jacinto™7 processor integrates HSM to achieve information confidentiality, and also integrates ASIL D MCU internally, so that users' products can meet the quality, functional safety and information security goals of the car.

Scalability: The importance of a high-performance system on a chip (SoC) is that it can perform parallel processing. The TI Jacinto7 processor belongs to a heterogeneous multi-core architecture. In addition to ARM A72, digital signal processing C7x/C66, MCU R5F and other computing cores, internal Accelerators such as VPAC and DMPAC effectively reduce the load on the main core, allowing applications to be deployed flexibly and promoting continuous function customization and expansion.

In terms of computing power: Jacinto7 provides users with a computing power of 0~32T on a single chip. A single C7x/MMA can achieve 8TOPS computing power. The series is divided into different versions according to configuration, which can meet the needs of cost reduction and function expansion.

In terms of cost: The TDA4 series effectively saves system costs with its advanced integration level. The TDA4 series processor integrates the ASIL-D MCU core, eliminating the need for an external MCU; it has rich interfaces, and the SOC integrates multiple CAN-FD interfaces, Ethernet, PCIe switches, etc.; it has a built-in ISP, and the camera does not require an external ISP.

Systems must be developed to be cost-effective in order to achieve widespread and effective use. As the algorithm software matures, the integrated solution based on two TDA4VMs has been mass-produced. It has high openness, high flexibility, integrated parking, and effectively balances computing power, cost and power consumption. Rich driving and parking functions and high-security systems provide users with a safe and comfortable immersive driving experience.

In the future, the integrated driving and parking solution based on a single TDA4VM Eco/TDA4VM PLUS/TDA4VH can be expanded from simple scenarios (fewer sensors, lower resolution) to more complex scenarios, opening a new chapter in intelligent driving and helping to reduce system costs, thereby realizing the popularization and popularization of ADAS technology.

For more than 30 years, TI has been fortunate to participate in and witness the rise of China's local automotive industry. Now, with the wave of automotive electrification, intelligence and connectivity, through TI's complete local support system, we will continue to empower the automotive industry and meet future challenges and opportunities with Chinese customers.

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