有一個可能原因(不確定)
Bosch E/E 架構改變，從分散式ECU演變成DCU (Domain Control Unit)
Big Organizational Change at Bosch
https://www.autobeatonline.com/articles/big-organizational-change-at-bosch
ECU->DCU
https://i.imgur.com/Se0FVYE.jpg
這也跟大概2~3年的相關資訊符合
https://i.imgur.com/TcZW6LJ.jpg
https://i.imgur.com/1vAIjGF.jpg
簡單講，原本整車上百個ECU，逐步整合成幾個區塊的ECU
原本專責控制引擎的ECU未來整合進底盤DCU
底盤DCU同時負責動力(檔位)/轉向/煞車和ESC等底盤功能
但不是不能調，是Bosch不輕易開放給Aftermarket調
有趣的是在車用電子/ADAS/線控這塊
Bosch這種超大型Tier1供應商的話語權可是比某些中小型車廠還大
至於有辦法取得Bosch的Protocol，能夠改的廠商也不是沒有
不過主要不是做動力(性能)方面的調整
而是把車線控化(Drive-by-wire kit)，供ADAS和自駕相關研究
[Dataspeed]
https://www.dataspeedinc.com/
[New Eagle]
https://neweagle.net/engine-control/
有的是外掛模組或破解方式啦，不過當然就不一定是車主負擔得起的改裝了
※ 引述《whitestripe (light me up)》之銘言：
: 各位好
: 在小弟上一篇的關於新款的NISSAN Z系列跑車的文章裡
: 小弟在結尾有提到
: 新的supra電腦 只要你的車子生產日期是在2020年七月以後的
: 目前不可能可以調
: 如果有哪家店家說他已經幫你調了 那家店不要再去了
: 而這件事情不只是影響到SUPRA
: 目前已經確定 BMW最大宗那幾顆引擎都一樣中獎
: 目前沒有任何已知的方法 去調整新的BMW電腦
: 而在小弟發新款Z系列文的時候 因為只有一個美國知名店家的口述這件事情
: 所以我還持保留態度
: 只有在文章最下面當補充
: 但是現在這件事情 應該算完全爆出來了
: 所以小弟決定發文分享
: 也希望有大大能進一步補充最新進展跟消息
: 目前有確定中獎的
: 是生產日期在2020年起碼六月25號以後的BMW m4 還有任何b48 b58引擎
: 依據美國當地的改裝廠互相交流
: 他們不確定是甚麼時候開始
: bosch改變了他們的安全系統
: 目前他們能夠追到最早的車子
: 是2020年六月25號生產的
: 也就是 從2020年六月25號生產的bmw 包括Supra
: 包括上一頁有人發的新款的m4(我猜M3一定也一樣)
: 因為安全系統的大幅變動
: 起碼目前為止 沒有任何方法可以改電腦
: 而ecutek預期(ecutek為知名改裝軟體)
: 這個無法改動電腦的現象
: 會很快的衍伸到其他的車廠 包括賓士等等
: 接下來會有一封公開信
: 這封公開信我們可以看到 這些改裝同業的絕望
: 基本上 目前為止所有的方法都無法破解電腦的安全系統
: 比如obd bench 甚至把ecu打開插針的方式
: 都無法破解
: 他們甚至絕望到提醒同業
: 如果你看到有任何人宣稱能破解
: 除非有第三方獨立機構證實
: 不然先當他在畫唬爛
: 以下為ecutek的公開信
: EcuTek Announcement:
: Locked Bosch Bootloaders
: As you may have seen some news, I would like to clarify the issues present on
: newly manufactured Bosch MEVD and MG1 ECUs.
: We've been aware of a situation brewing in Bosch ECUs initially identified on
: BMW platforms but potentially affects all Bosch Tricore platforms that are
: currently being manufactured. We were unsure of the extent of these changes
: and how it would impact our business and yours, but we are starting to see
: affected ECUs out in the wild now.
: Bosch have updated the security on their most recently manufactured ECUs that
: means that "bench unlocking" is no longer possible. This issue has been seen
: on MEVD17 ecus in BMW M4s manufactured in July 2020, and in MG1S024 ECUs in
: B48/B58 cars manufactured late June, July and August 2020. The exact data of
: the switchover is unknown but the earliest date we have currently is 25th
: June.
: The result means for newly manufactured cars:
: No OBD unlock
: No Bench unlock
: No bootpin unlock (that's right even opening the ECU to get direct access to
: the processor does not help)
: Not just BMW will be affected, expect to see this coming to the likes of
: Mercedes etc.
: There are no tuning products in existence that can support these new ECUs,
: it's an industry wide problem, not just an Ecutek problem.
: The latest cars will NOT tuneable using an ECU reflash from any company, with
: any tool.
: Older cars are unaffected and will continue to be tuneable
: The changes are to the lowest level Bosch code, pre-programmed by Bosch at
: point of manufacturer (it is not an update to the BMW or manufacturer
: specific bootloader). So this is not something that can be easily recognised
: by the ID of the BMW software version, Calibration ID or bootloader version,
: our best guess is that it affects cars from June 2020 onwards. Our current
: information is that this new Bosch bootloader is not field upgradeable, so
: that means that existing ECUs with the older Bosch bootloader cannot be
: updated to the locked version with something like a dealer reflash (this is
: good!)
: Our long term approach is we're looking for ways to allow programming of
: these ECUs, but it's a significant challenge which we don't quite know the
: scale of yet. We are working very hard to find a solution to this and nothing
: is being ruled out as a potential fix.
: In the short term we intend to add the manufacturing date fields to our query
: tools to try and allow tuners to know with greater certainty what they are
: dealing with. Our plans for tuning products are already changing as a result
: of this development, and you may see our focus change subtly to support more
: existing vehicles on other platforms. We will continue to increase the
: breadth and depth of our tools and features to really push what is possible
: in the OEM ECU marketplace.
: I realise this is not what you want to hear, but this is the reality at the
: moment. I would urge tuners across all marques, using all software tools to
: plan ahead when it comes to their customers and treat them fairly and with
: respect. None of us expected this to happen and we are all affected in one
: way or another. Be wary of anyone that claims to have a solution to this
: problem, until it's independently verified you should assume it's still an
: issue. When a company does have a solution, this is good news for everyone,
: as we will know it's not impossible to solve."
: 這是一個非常巨大的消息
: 我很驚訝整個車板只有我在關心這件事情的發展xddddddddddd
: 而小弟發這篇文章
: 主要是想知道
: 有沒有人能夠提供其他情報的?????
: 因為從這封公開信來說
: 不只是bmw
: 未來可能其他所有車廠都會在短時間內跟進
: 甚至可能已經跟進了 只是我們還不知道
: 而對車主來說 最重要的事情可能是
: 2020年六月25號後生產的bmw 都有可能會是新型的ecu
: 也就是無法調整電腦
: 所以如果你現在正要購買
: 而你未來有意圖改裝
: 可能必須確定生產日期
: 以上
: 希望有板友能夠提供更詳細的消息
: 我真的很想知道是甚麼改變
: 讓美國前四大改bmw的tuner全都如此絕望
: 甚至還讓ecutek發了給同業的公開信????
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