有一个可能原因(不确定)
Bosch E/E 架构改变，从分布式ECU演变成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
这也跟大概2~3年的相关资讯符合
https://i.imgur.com/TcZW6LJ.jpg
https://i.imgur.com/1vAIjGF.jpg
简单讲，原本整车上百个ECU，逐步整合成几个区块的ECU
原本专责控制引擎的ECU未来整合进底盘DCU
底盘DCU同时负责动力(档位)/转向/煞车和ESC等底盘功能
但不是不能调，是Bosch不轻易开放给Aftermarket调
有趣的是在车用电子/ADAS/线控这块
Bosch这种超大型Tier1供应商的话语权可是比某些中小型车厂还大
至于有办法取得Bosch的Protocol，能够改的厂商也不是没有
不过主要不是做动力(性能)方面的调整
而是把车线控化(Drive-by-wire kit)，供ADAS和自驾相关研究
[Dataspeed]
https://www.dataspeedinc.com/
[New Eagle]
https://neweagle.net/engine-control/
有的是外挂模组或破解方式啦，不过当然就不一定是车主负担得起的改装了
※ 引述《whitestripe (light me up)》之铭言：
: 各位好
: 在小弟上一篇的关于新款的NISSAN Z系列跑车的文章里
: 小弟在结尾有提到
: 新的supra电脑 只要你的车子生产日期是在2020年七月以后的
: 目前不可能可以调
: 如果有哪家店家说他已经帮你调了 那家店不要再去了
: 而这件事情不只是影响到SUPRA
: 目前已经确定 BMW最大宗那几颗引擎都一样中奖
: 目前没有任何已知的方法 去调整新的BMW电脑
: 而在小弟发新款Z系列文的时候 因为只有一个美国知名店家的口述这件事情
: 所以我还持保留态度
: 只有在文章最下面当补充
: 但是现在这件事情 应该算完全爆出来了
: 所以小弟决定发文分享
: 也希望有大大能进一步补充最新进展跟消息
: 目前有确定中奖的
: 是生产日期在2020年起码六月25号以后的BMW m4 还有任何b48 b58引擎
: 依据美国当地的改装厂互相交流
: 他们不确定是什么时候开始
: bosch改变了他们的安全系统
: 目前他们能够追到最早的车子
: 是2020年六月25号生产的
: 也就是 从2020年六月25号生产的bmw 包括Supra
: 包括上一页有人发的新款的m4(我猜M3一定也一样)
: 因为安全系统的大幅变动
: 起码目前为止 没有任何方法可以改电脑
: 而ecutek预期(ecutek为知名改装软件)
: 这个无法改动电脑的现象
: 会很快的衍伸到其他的车厂 包括奔驰等等
: 接下来会有一封公开信
: 这封公开信我们可以看到 这些改装同业的绝望
: 基本上 目前为止所有的方法都无法破解电脑的安全系统
: 比如obd bench 甚至把ecu打开插针的方式
: 都无法破解
: 他们甚至绝望到提醒同业
: 如果你看到有任何人宣称能破解
: 除非有第三方独立机构证实
: 不然先当他在画唬烂
: 以下为ecutek的公开信
: 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."
: 这是一个非常巨大的消息
: 我很惊讶整个车板只有我在关心这件事情的发展xddddddddddd
: 而小弟发这篇文章
: 主要是想知道
: 有没有人能够提供其他情报的?????
: 因为从这封公开信来说
: 不只是bmw
: 未来可能其他所有车厂都会在短时间内跟进
: 甚至可能已经跟进了 只是我们还不知道
: 而对车主来说 最重要的事情可能是
: 2020年六月25号后生产的bmw 都有可能会是新型的ecu
: 也就是无法调整电脑
: 所以如果你现在正要购买
: 而你未来有意图改装
: 可能必须确定生产日期
: 以上
: 希望有板友能够提供更详细的消息
: 我真的很想知道是什么改变
: 让美国前四大改bmw的tuner全都如此绝望
: 甚至还让ecutek发了给同业的公开信????