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Electronic control device

A technology of electronic control device and control unit, which is applied in the direction of program control design, traffic control system, multi-program device, etc., and can solve the problem that the same data cannot be guaranteed to be obtained again

Active Publication Date: 2016-07-06
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In particular, since radio data is data received from a dynamically changing communication partner, there is no guarantee that the same data will be acquired again later, so it is required to avoid discarding the radio data as much as possible

Method used

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Examples

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Embodiment Construction

[0029] Hereinafter, an example of the embodiment of the present disclosure will be described using the drawings. figure 1 It is a diagram showing an example of a schematic configuration of an electronic control system 100 mounted on a vehicle (also referred to as a host vehicle) in this embodiment. Such as figure 1 As shown, the electronic control system 100 includes a main control unit 1, a radio device 91 as various data sources 9, an in-vehicle communication microcomputer 92, and a GPS receiver 93.

[0030] These radio equipment 91, the in-vehicle communication microcomputer 92, and the GPS receiver 93 are connected to the main control unit 1 so as to be able to communicate with each other. In addition, the data source 9 only needs to be configured to input radio data and in-vehicle data described later to the main control unit 1, and the number of data sources 9, types of equipment, circuit configuration, etc. are arbitrary. The main control unit 1 is also called an electroni...

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Abstract

Wireless data that is obtained via a radio (91) and stored in a radio-control-unit buffer (5A) is transferred to an intermediate wireless-data buffer (5M) by a wireless-data reception unit (321). Also, intra-vehicle data stored in an intra-vehicle-communication-control-unit buffer (5B) is transferred to an intermediate intra-vehicle-data buffer (5N) by an intra-vehicle-data reception unit (331). When data is being thus transferred, a wireless-data reception task is prioritized over other processes that transfer data, such as an intra-vehicle-data reception task. Since wireless data received by a radio control unit (22) is sequentially transferred to the intermediate wireless-data buffer (5M) as soon as said wireless data is stored in the radio-control-unit buffer (5A), the likelihood of the radio-control-unit buffer (5A) becoming full due to said wireless data is reduced.

Description

[0001] Cross-reference of related applications [0002] This disclosure is based on an application of Japanese application number 2013-239171 filed on November 19, 2013, and the contents of the description are cited here. Technical field [0003] The present disclosure relates to electronic control devices for vehicles. Background technique [0004] In recent years, it has been proposed to implement each vehicle-to-vehicle communication or road-to-vehicle communication based on data received from other vehicles or roadside equipment (called radio equipment data or radio data). An electronic control device that controls processing. Such an electronic control device is mainly composed of a well-known microcomputer including a CPU, RAM, ROM, etc., and programs (ie, application programs) corresponding to various control processes are stored in a nonvolatile memory such as ROM. [0005] In addition, in addition to radio data input to such electronic control devices, data indicating the s...

Claims

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Application Information

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IPC IPC(8): G08G1/09B60R21/00G06F9/48H04L13/08H04M1/72415
CPCH04L67/12G08G1/093G08G1/163G06F9/4887B60R21/00H04W4/46H04W4/48H04W4/44H04L67/568H04L67/61G06F9/48H04L13/08H04M1/72415H04B1/3822
Inventor 隈部正刚
Owner DENSO CORP
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