車載以太網(wǎng)的發(fā)展速度比較驚人,自從BMW在2008年在第一個(gè)車型上搭載以太網(wǎng)的,10年以來(lái)很多車企都在入局。
在2013年得以實(shí)現(xiàn),BMW牽頭創(chuàng)建了一對(duì)非屏蔽雙絞線的以太網(wǎng)物理層(IEEE 100base-T1),這里也是透過(guò)一些車型平臺(tái)來(lái)看這個(gè)以太網(wǎng)的實(shí)際部署速度快速?gòu)木植?a target="_blank">網(wǎng)絡(luò)階段、子網(wǎng)絡(luò)階段,開(kāi)始往多子網(wǎng)絡(luò)階段走。
2008-2013年:局部網(wǎng)絡(luò)階段,單獨(dú)在某個(gè)子系統(tǒng)上應(yīng)用車載以太網(wǎng)技術(shù),實(shí)現(xiàn)子系統(tǒng)功能,如基于 DoIP 協(xié)議的 OBD 診斷、使用 IP 協(xié)議的攝像頭等;
2015-2018年:子網(wǎng)絡(luò)階段,開(kāi)始將某娛樂(lè)、安全和通信子系統(tǒng)進(jìn)行整合,構(gòu)建車載以太網(wǎng)子系統(tǒng),實(shí)系統(tǒng)的功能;
1)2008-2013
2)2015,這個(gè)是從G01的X3開(kāi)始的
The following ECU are connected to the vehicle electrical system via two-wire OABR Ethernet
Camera-based driver support systems (KAFAS)
Top Rear Side View Camera (TRSVC)
Rear view camera (RFK)
The following ECU are additionally connected via two-wire OABR Ethernet
Head unit
Optional equipment system (SAS)
Telematic Communication Box
Ethernet topology without Ethernet switchon vehicles with Headunit Basic
Ethernet topology with Ethernet switchon vehicles with Headunit Basic
Ethernet topology on vehicles with Headunit High
3)2018年的G15的8系
從G15的主體的連接對(duì)之前的G01,差異其實(shí)挺大的,開(kāi)關(guān)模塊沒(méi)有了
The following control units are connected to the vehicle electrical system via OABR Ethernet:
? Driver Camera System (DCS)
? Top Rear Side View Camera (TRSVC)
? Rear view camera (RFK)
? Camera-based driver support systems (KAFAS)
? Front radar sensor long range (FRSF).
The following control units are, aside from a further bus system, connected to the vehicle electrical system via OABR Ethernet:
? Head Unit High (HU-H)
? Telematic Communication Box (TCB)
? Receiver Audio Module (RAM)
? Optional equipment system (SAS).
小結(jié):從一個(gè)個(gè)車型的迭代和變化來(lái)看,以太網(wǎng)的滲入速度好快,也就是說(shuō)之前說(shuō)的SOA隨著物理層部署完畢,在娛樂(lè)和ADAS這塊會(huì)帶動(dòng)整個(gè)車輛的速度量的傳輸過(guò)程,也就助推了軟件開(kāi)發(fā)模式和域控制器的導(dǎo)入。我們站在EV的角度來(lái)看,軟件這塊是存在延遲的
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原文標(biāo)題:車載以太網(wǎng)部署的進(jìn)度
文章出處:【微信號(hào):QCDZSJ,微信公眾號(hào):汽車電子設(shè)計(jì)】歡迎添加關(guān)注!文章轉(zhuǎn)載請(qǐng)注明出處。
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