CTI中国论坛2020年在线演讲系列：
系列七：变速箱优化
（原计划：2020年11月18日，由于时间冲突，推迟到12月2日和系列九合并播出。）
2020年12月2日
中国时间下午5:00-6:00 (欧洲中部时间上午10:00-11:00)
演讲语言：英文，播出软件：MS Teams
演讲人一：
Ryo Nakamura (中村亮）
团队经理
爱信AW有限公司
主题：
关于两种新型变速箱在内的CVT产品
- 爱信AW的CVT产品线
- 带启动档的CVT特性
- 超紧凑型CVT的特性
内容介绍：
爱信AW开发了2种面向新时代的CVT机种。一种是通过增加齿轮来显着提高行驶性能和燃油效率的变速器。另一个是超紧凑型变速器，它通过扩大速比范围而大大提高了燃油效率。我们相信包括这2种新型变速箱在内的各种CVT产品，能够满足世界上各个汽车厂商的最新需要。本文将会对其做重点介绍。
通过添加以下两个机种，增强了愛信AW的CVT产品阵容。通过采用同步器和C2离合器，以及增加启动档齿轮来扩大齿轮比，开发了行驶性能和燃油效率都得到显著提升的CVT。通过减小皮带卷绕直径，扩大了传动比的范围，开发了在小排量等级中具有和M / T同等以上的燃油效率的CVT。
演讲人二：
Barry James
首席技术官
Romax科技有限公司
主题：
Structural optimization of an EV gearbox housing targeting Low Gear Misalignment
- Influence of bearing stiffness on gear misalignment
- Review of conventional approaches to structural optimization
- Results from a case study with minimized misalignment for all meshes across all loads
内容介绍：
It has long been understood that having gears that are misaligned leads to reduced performance, in terms of reduced life and increased noise, and designers have long sought to understand the deflections in the gearbox which contribute to this misalignment, namely the shafts, bearings, gear blanks and housing. At the same time, lightweighting targets have demanded that more weight (i.e. material) is taken out of designs. Lighter designs tend to be more flexible, risking greater misalignment, so structural optimisation methods have been used to create gearbox
housing designs that are optimised for specific stiffness, i.e. maximised stiffness/weight ratio. However, this neglects the fact that, within a gearbox, some deflections are much more damaging than others, based on whether they affect the alignment of a gear in its line-of-action or not. This paper presents an approach where the gear misalignment under load of an EV gearbox is decomposed into the contributions from the internal components (shafts, bearings, gear blanks) and then a target is set for the housing to provide deflections that counter these deflections.
The target is to create a gearbox structure where, as the torque is increased, the deflections of the shafts, bearings and gears (resolved in the line of action of the
gears) are precisely countered by the deflections of the housing (again, resolved in the line of action of the gears). A process that links together two well-established
software packages is illustrated and the design optimisation of an EV gearbox illustrated. 2 gear sets with drive and coast conditions give 4 gear mesh conditions that need to be made invariant to torque, at the same time as maintaining housing stress limits. The results show that, for the 4 gear meshes, peak misalignment is reduced by an average of 67% whilst the housing weight is reduced by 59%. This reduction in misalignment will make for gears that are more durable, quieter and more efficient.
Designing a housing with a specific structural target that operates so as to minimise gear misalignment across the range of operating torques Linking of a gearbox system modeller with a structural optimisation tool, taking intelligent targets from the former to set targets for the latter
友情提示：
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赞助商
作为全球领先的润滑油解决方案供应商，嘉实多自1989年进入中国，目前已成为中国润滑油市场的重要运营者。1998年，嘉实多在深圳蛇口设立了在中国的第一个调配厂；2010年，嘉实多在上海浦东建成其首个中国技术中心。凭借先进的技术能力及丰富的全球运营经验，嘉实多致力于满足中国客户的多样化需求。
对于全球顶级足球赛事及汽车赛事，嘉实多也全情投入。嘉实多曾赞助2010 FIFA南非世界杯及2014FIFA巴西世界杯，还赞助了2008及2012年欧锦赛。在赛车领域，嘉实多极护是奥迪、福特、本田等车队的指定用油，曾协助他们参加世界汽车拉力锦标赛、达喀尔拉力赛等各项国际级赛车赛事，帮助车队和车手屡创佳绩。2017年，BP和嘉实多携手雷诺车队强势回归F1赛场，为雷诺车队提供燃油和润滑油，并助力车队在未来五年实现征战世界锦标赛的雄心壮志。
长期以来，嘉实多是奥迪、捷豹路虎、沃尔沃、福特等众多世界领先汽车厂商的合作伙伴和推荐品牌，并与它们共同开展技术研发，度身定制高品质的润滑油产品，期待以更好的产品和服务来实现对广大中国消费者的承诺。
嘉实多 (上海) 管理有限公司
上海市桂桥路255号5幢3层
戈尔公司 是一家全球性材料科技公司，致力于服务工业生产和改善生活质量。自1958年以来，戈尔公司攻克了高要求环境下的复杂技术挑战 — 从外太空到世界最高峰，再到人体内部机制。凭借10,500多名员工和一个强大的面向团队协作的文化，戈尔公司每年营造370亿美元的收入。
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