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Virtual electronic control unit in AUTOSAR

An electronic control unit and virtualization technology, applied in the direction of program control design, general control system, control/adjustment system, etc., can solve communication processing difficulties, time processing, handshake processing and memory processing complex, ROM and RAM consumption, etc. question

Active Publication Date: 2020-06-26
APTIV TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, this concept of virtual parallelization requires that the hypervisor used for the virtualization process must abstract the hardware platform and must run multiple operating systems (OS) in parallel to allow access to all hardware services from all cores
[0014] Furthermore, running a parallel operating system (OS) in the context of a separate parallel AUTOSAR stack incurs significant overhead in ROM and RAM, making timing, handshaking, and memory handling of drivers and applications running in parallel (e.g. Ethernet drivers) trivial. complex
[0015] Therefore, communication processing between software running in parallel on different partitions becomes difficult, and complex shared resource and service processing may be required to ensure safe and reliable operation of the entire system

Method used

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  • Virtual electronic control unit in AUTOSAR
  • Virtual electronic control unit in AUTOSAR
  • Virtual electronic control unit in AUTOSAR

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0088] figure 1 A prior art virtualization concept applied to an electronic control unit 100 comprising a plurality of cores 210 to 250 is shown.

[0089] In this example, the virtualization concept has been used to consolidate two separate AUTOSAR ECU configurations in a single platform.

[0090] More specifically, the system hosts two distinct partitions 110, 120, where each partition 110, 120 acts as an independent virtual machine (VM). The first partition 110 is assigned to two cores 210 , 220 and the second partition 120 is assigned to the remaining three cores 230 , 240 , 250 of the underlying electronic control unit 100 .

[0091] Each virtual machine (VM) runs base software 310, 320 that is built in layers. In this example, each basic software 310, 320 provides basic services including services of a separate operating system (OS) to software components 410 to 450 of each AUTOSAR ECU configuration and other basic software 320, 320, respectively.

[0092] Thus, multip...

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PUM

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Abstract

The present invention relates to a virtual electronic control unit in an AUTOSAR, and relates to an electronic control unit comprising a plurality of cores, wherein the electronic control unit a plurality of partitions including a first partition and a second partition via the virtual host, each of the partitions is assigned to at least one of the cores, the first partition is implemented to run,on at least one core, an AUTOSAR architecture platform instance providing AUTOSAR basic software services, and the second partition is implemented to run, on at least one core, the AUTOSAR software components, wherein a partition interface couples the first and second partitions such that the AUTOSAR software components are run as part of the AUTOSAR architecture platform instance implemented in the first partition.

Description

technical field [0001] The present invention relates to an electronic control unit (ECU) comprising a plurality of cores. Background technique [0002] Automotive Open System Architecture, or AUTOSAR, standardizes the electronics and software architecture used in modern vehicles with the goal of simplifying the development and integration of vehicle-related software functions. [0003] Modern vehicles are now capable of supporting many complex functions, including self-navigation and steering, advanced engine emissions control, image detection-based services, and sophisticated control algorithms for improving vehicle dynamics. [0004] Consequently, the number of Electronic Control Units (ECUs) embedded in vehicles is steadily increasing and today can reach more than 100 ECUs for a single car. [0005] In view of this development, modern electronic control units (ECUs) are equipped with multiple cores to enhance computing power and provide software functional capabilities. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0221G06F9/45558G06F9/5077G06F9/541G06F2009/45575G06F2009/45587
Inventor A·楞茨A·谢菲尔S·亨泽尔M·诺伊塞尔
Owner APTIV TECH LTD