CN218122512U

CN218122512U - Vehicle-mounted domain controller system

Info

Publication number: CN218122512U
Application number: CN202222882403.6U
Authority: CN
Inventors: 李建林; 李静; 卢程景; 朱昕怡
Original assignee: Leadmove Technology Shanghai Co ltd
Current assignee: Leadmove Technology Shanghai Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2022-12-23
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses an on-vehicle territory controller system, including system power module, central computation module and all be connected with central computation module electricity safety control processing module, video access module, video output module, network input output switching module and peripheral hardware interface module, safety control processing module is connected with system power module, peripheral hardware interface module and network input output switching module electricity simultaneously. The utility model discloses have platformization, high performance, high integration and good compatibility, reduced development and integrated cost, reduced ECU's quantity, it is also better to have improved the scalability of platform, greatly reduced the cost of whole car, has powerful calculation simultaneously, makes the artificial intelligence who realizes complex function possible.

Description

Vehicle-mounted domain controller system

Technical Field

The utility model relates to an automobile control technical field especially relates to an on-vehicle territory controller system.

Background

Automobile intellectualization and informatization development enable usage of an Electronic Control Unit (ECU) to be increased. From a traditional engine control system, an airbag, an anti-lock system, an electric power steering system, a vehicle body electronic stabilizing system, to an intelligent instrument, an entertainment audio system, an auxiliary driving system and the like. Each separated ECU makes the automobile structure complicated, the total length of the required cable is greatly increased, the manufacturing cost is greatly improved, and meanwhile, the cable wiring assembly is difficult.

To solve these problems of distributed EEA (Electrical/Electronic Architecture), many functional similar and separated ECU functions are gradually integrated into a processor hardware platform with performance higher than that of the ECU, namely Domain Control Unit (DCU). The existing domain controller system has the defects of high cost, difficulty in balancing integration level and performance, low compatibility and incapability of meeting the requirement of fast-developing automobile control.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's weak point and provide an on-vehicle domain controller system, have platformization, high performance, high integration and good compatibility, reduced development and integrated cost, reduced ECU's quantity, the scalability that has improved the platform is also better, greatly reduced the cost of whole car, have powerful calculation power simultaneously, make the artificial intelligence who realizes complex function possible.

Realize the utility model discloses purpose technical scheme is:

a vehicle-mounted domain controller system comprises a system power supply module, a central computing module, a safety control processing module, a video access module, a video output module, a network input/output switching module and a peripheral interface module, wherein the safety control processing module, the video access module, the video output module, the network input/output switching module and the peripheral interface module are all electrically connected with the central computing module, and the safety control processing module is simultaneously electrically connected with the system power supply module, the peripheral interface module and the network input/output switching module.

Further, the central computing module adopts a single chip or a plurality of chips of SOC.

Further, the safety control processing module adopts an Infineon Tricore series chip.

Furthermore, the peripheral interface module comprises a CAN interface, a LIN interface, a Flexray interface and a GPIO interface which are electrically connected with the central computing module.

Furthermore, the system power supply module adopts centralized power distribution and comprises a power supply, a camera power supply circuit, a radar power supply circuit, an ultrasonic power supply circuit, a lamplight power supply circuit, a vehicle window power supply circuit and an entertainment power supply circuit which are all electrically connected with the power supply and are respectively and independently controlled.

Further, the network input/output switching module comprises an automobile gateway processor and a vehicle-mounted Ethernet switch which are electrically connected, and the automobile gateway processor is simultaneously electrically connected with the central computing module.

Further, the automobile gateway processor adopts a chip with the model number of DRA 821.

Further, the vehicle-mounted Ethernet exchanger adopts a control chip with the model number of RTL 9075.

By adopting the technical scheme, the utility model discloses following beneficial effect has:

(1) The utility model discloses a video input module spreads into outside video data into central computing module, carry out the processing analysis, and with other auxiliary data through peripheral hardware interface module leading-in, data fusion such as millimeter wave radar, laser radar, ultrasonic radar etc. carries out, a series of operating strategy of car is finally calculated, such as lane keeping, the pedestrian dodges, automobile body safe distance etc. these operating strategy will be led into safety control processing module, form the control strategy to car itself, such as brake control, throttle control, light control, driver interactive control output etc. overall structure has the platformization, high performance, high integration and good compatibility, the platformization makes development and integrated cost greatly reduced; the high integration reduces the number of the ECUs, simultaneously ensures that the expandability of the platform is better, and greatly reduces the cost of the whole vehicle; the rich peripheral hardware interface forms and the high-performance computing unit enable a host factory to compatibly use the same set of hardware domain controller in different automobile functional domains, such as a power domain, a chassis domain, a vehicle body domain, a cabin domain, an automatic driving domain and the like, and the host factory only needs to correspondingly modify or deploy software functions, so that the compatibility is good. The central computing module is arranged, so that the domain controller can run a more complex sensor fusion algorithm, and artificial intelligence with complex functions can be realized.

(2) The utility model discloses central computing module adopts the SOC chip, possesses powerful computer vision processing function, abundant image signal access function and neural network computational engine, supports AI algorithm, car network security, camera preliminary treatment, figure parallel processing, high definition demonstration, video processing, multisensor perception and fusion and the high throughput processing engine simultaneously, excellent performance.

(3) The utility model discloses safety control processing module adopts Infineon Tricore series chip, possesses the redundant technical measure of hardware and the software and hardware self-checking function (BIST, build-in self test), memory error correction check-up technique (ECC) of dual-core lock step (dual-core lockstep) treater structure, improves treater security feature.

(4) The utility model discloses be equipped with multiple interface, be convenient for communicate with other modules and outside sensor, like radar data, high accuracy positioning data etc. improve the convenience of use.

(5) The utility model discloses a concentrate the distribution, cancelled traditional fuse and relay, the structure is more succinct, and each way circuit is controllable alone, independent protection to realize intelligent optimization power management, based on electric current and voltage diagnosis's failure prediction.

(6) The utility model discloses a network input/output exchange module adopts the car gateway treater that the model is DRA821 and the on-vehicle ethernet exchanger control chip that the model is RTL9075, and DRA821 chip has integrateed a series of safety function, including ECC, the fire wall of calculating key memory and internal data bus, self-checking diagnostic tool and error signal module for catch the mistake relevant with functional security; DRA821 also integrates a range of security functions to protect against external attacks, including secure boot, cryptographic acceleration, trusted execution environment, secure storage, instant encryption, and coprocessors for security management; the RTL9075 control chip integrates 100BASE-T1 PHY and 1000BASE-T1 PHY, supports a time-sensitive network for an advanced driving auxiliary system and automatic driving application, and carries out real-time encryption and decryption safety management on the safety of the data entering and exiting the domain controller.

Drawings

In order that the manner in which the present invention is made more readily will be understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, wherein:

FIG. 1 is a block diagram of the present invention;

fig. 2 is a block diagram of a network input/output switching module.

Detailed Description

In order to better understand the technical scheme, the technical scheme is described in detail in the following with reference to the attached drawings of the specification and specific embodiments.

(example 1)

The vehicle-mounted domain controller system shown in fig. 1 includes a system power supply module, a central computing module, and a security control processing module, a video access module, a video output module, a network input/output switching module and a peripheral interface module all electrically connected to the central computing module, wherein the security control processing module is electrically connected to the system power supply module, the peripheral interface module and the network input/output switching module at the same time. The video input module transmits external video data to the central computing module for processing and analysis, and performs data fusion with other auxiliary data, such as millimeter wave radar, laser radar, ultrasonic radar and the like, which are guided in by the peripheral interface module, and finally calculates a series of operation strategies of the automobile, such as lane keeping, pedestrian avoidance, automobile body safety distance and the like, which are guided in the safety control processing module to form control strategies of the automobile, such as brake control, accelerator control, light control, driver interactive control output and the like.

Specifically, because traditional fuse and relay system is bulky, fragile, need artifical replacement to restore, this embodiment system power module adopts centralized distribution, including the power and all be connected with the power electricity and the camera supply circuit of independent control respectively, radar supply circuit, supersound supply circuit, light supply circuit, door window supply circuit and amusement supply circuit, traditional fuse and relay have been cancelled, the structure is succinct more, each way circuit is controllable alone, independent protection, thereby realize intelligent optimization power management, the fault prediction based on electric current and voltage diagnosis.

The central computing module may be a single or multiple SOC chip, such as TI TDA ⁴ The chip, the horizon J3 chip or the Nvdia Orin chip have a powerful computer vision processing function, a rich image signal access function and a neural network computing engine, simultaneously support an AI algorithm, automobile network security, camera preprocessing, graphic parallel processing, high-definition display, video processing, multi-sensor perception and fusion and a high throughput processing engine, and have excellent performance.

Functional safety is one of the very critical elements in the automobile development process, and as the complexity of the system increases, the risks from system failures and random hardware failures increase. According to the safety technical measures recommended by the automobile functional safety standard ISO26262 for the diagnostic coverage of the processor unit, the safety control processing module in this embodiment adopts an Infineon Tricore series chip, such as a core-relaxation E3 chip, a hardware redundancy technical measure with a dual-core lock step (dual-core lock step) processor structure, a built-in self test (BIST) function, and an Error Correction Code (ECC) technology, so as to ensure the safety characteristics of the processor.

The network input and output switching module comprises an automobile gateway processor and a vehicle-mounted Ethernet switch which are electrically connected, wherein the automobile gateway processor is simultaneously electrically connected with the central computing module. The automobile gateway processor adopts a chip with the model of DRA821, integrates a series of safety functions, comprises an ECC (error correction code), a firewall, a self-checking diagnosis tool and an error signal module for calculating a key memory and an internal data bus, and is used for capturing errors related to functional safety; DRA821 also integrates a range of security functions to protect against external attacks, including secure boot, cryptographic acceleration, trusted execution environment, secure storage, instant encryption, and coprocessors for security management. The vehicle-mounted Ethernet exchanger adopts a control chip with the model number of RTL9075, integrates 100BASE-T1 PHY and 1000BASE-T1 PHY, supports a time-sensitive network for an advanced driving auxiliary system and automatic driving application, and carries out real-time encryption and decryption safety management on the safety of data entering and leaving a domain controller.

This embodiment has abundant peripheral hardware interface module, including all with the CAN interface, LIN interface, flexray interface and the GPIO interface that central computing module electricity is connected, be convenient for communicate with other modules and outside sensor, like radar data, high accuracy positioning data etc. improve the convenience of use.

In a traditional automobile, various separated ECUs are used in different functional systems, such as an engine control system, an airbag, an anti-lock system, an electric power steering system, an automobile body electronic stabilizing system, an intelligent instrument, an entertainment audio-visual system and an auxiliary driving system, so that the automobile structure is complex, and the manufacturing cost is greatly improved due to various ECU types. The utility model has the advantages that the whole structure has the advantages of platform, high performance, high integration and good compatibility, and the platform greatly reduces the development and integration cost; the high integration reduces the number of the ECUs, simultaneously ensures that the expandability of the platform is better, and greatly reduces the cost of the whole vehicle; the central computing module is arranged, so that the domain controller can run a more complex sensor fusion algorithm, and the artificial intelligence with complex functions becomes possible by combining rich peripheral interface modules.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A vehicle domain controller system, characterized by: the system comprises a system power supply module, a central computing module, a safety control processing module, a video access module, a video output module, a network input/output switching module and a peripheral interface module, wherein the safety control processing module, the video access module, the video output module, the network input/output switching module and the peripheral interface module are all electrically connected with the central computing module, and the safety control processing module is simultaneously electrically connected with the system power supply module, the peripheral interface module and the network input/output switching module.

2. A vehicle domain controller system according to claim 1, wherein: the central computing module adopts a single chip or a plurality of chips SOC.

3. A vehicle domain controller system according to claim 1, wherein: the safety control processing module adopts an Infineon Tricore series chip.

4. A vehicle domain controller system according to claim 1, wherein: the peripheral interface module comprises a CAN interface, a LIN interface, a Flexray interface and a GPIO interface which are electrically connected with the central computing module.

5. A vehicle domain controller system according to claim 1, wherein: the system power supply module adopts centralized power distribution and comprises a power supply, a camera power supply circuit, a radar power supply circuit, an ultrasonic power supply circuit, a lamplight power supply circuit, a vehicle window power supply circuit and an entertainment power supply circuit, wherein the camera power supply circuit, the radar power supply circuit, the ultrasonic power supply circuit, the lamplight power supply circuit, the vehicle window power supply circuit and the entertainment power supply circuit are all electrically connected with the power supply and are respectively and independently controlled.

6. A car domain controller system according to claim 1, characterized in that: the network input and output switching module comprises an automobile gateway processor and a vehicle-mounted Ethernet exchanger which are electrically connected, and the automobile gateway processor is simultaneously and electrically connected with the central computing module.

7. A car domain controller system according to claim 6, characterized in that: the automobile gateway processor adopts a chip with the model of DRA 821.

8. A car domain controller system according to claim 6, characterized in that: the vehicle-mounted Ethernet exchanger adopts a control chip with the model number of RTL 9075.