动态停缸
DSF®技术使乘用车的效率提高5-15%。
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-hero.png)
动态停缸(DSF®)如何工作
DSF ,在逐个事件的基础上动态地跳过或点燃单个气缸,以满足发动机扭矩的需求。通过使用专利算法仔细控制燃烧事件的数量和顺序,使发动机运行在接近峰值效率点,创造了一个由软件控制的可变排量发动机。森林舞会游戏的算法避免了噪声和振动的产生,使驾驶员在所有驾驶条件下都能获得预期的精致度。
DSF®在现实世界的情况下
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-65.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-65.png)
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![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-65.png)
当需要高扭矩时,DSF®激活所有气缸。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/dsf-situations-high-mobile1_CH.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-high-mobile.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-45.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-45.png)
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![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-45.png)
随着扭矩需求的缓和,根据需求有些气缸会动态地停用。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/dsf-situations-medium-mobile1_CH.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-medium-mobile.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-25.png)
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![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-25.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-25.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-25.png)
在较慢的速度下,通过动态停用更多的气缸,甚至在减速时停用所有的气缸来保持最大的燃油效率。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/dsf-situations-low-mobile2_CH.png)
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/dsf-situations-low-mobile-1.png)
如何实施DSF
发动机控制模块中的软件
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/dsf-software_CH.png)
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/dsf-software1.png)
停缸硬件
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/dsf-hardware_CH.png)
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/dsf-hardware.png)
森林舞会游戏公司的DSF ,可与大多数停缸气门驱动系统配合使用。
DSF 基于单个气缸的停用。每个气缸的点火或停用需要由能够单独启用/停用的进气门和排气门控制。
气门的停用可以通过液压或机电手段。
DSF 有一个很好的价值主张,今天有200多万辆车在路上,DSF ,就是证明。
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/mobile-truck-awards.jpg)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/mobile-truck-awards.jpg)
柴油机动态停缸
柴油机动态停缸(dDSF™)使柴油机既清洁又环保
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-hero.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-hero.png)
柴油机动态停缸(dDSF™)如何工作
森林舞会游戏公司的dDSF 技术利用专利算法仔细控制柴油机中燃烧事件的数量和顺序,以确保发动机在接近峰值的效率下运行。由于较高的气缸负荷,dDSF提高了废气温度,这就保持了后处理系统的工作温度,特别是在低负荷条件下。
dDSF™在现实世界的情况下
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-65.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-65.png)
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![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-65.png)
当需要高扭矩时。dDSFTM激活所有气缸。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/ddsf-situations-high-mobile_CH.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-situations-high-mobile.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-45.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-45.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-45.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-45.png)
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![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-45.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-45.png)
随着扭矩需求的缓和,根据需求有些气缸会动态地停用。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/ddsf-situations-medium-mobile_CH.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-situations-medium-mobile.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-25.png)
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![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-25.png)
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![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-25.png)
在较慢的速度下,通过动态停用更多的气缸,甚至在减速时停用所有的气缸来保持最大的燃油效率。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/ddsf-situations-low-mobile_CH.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-situations-low-mobile.png)
从最佳燃烧中同时获得在二氧化碳和氮氧化物上的收益
和在催化器中更高的转换效率
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/icon-engine-2.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/icon-engine-2.png)
发动机控制
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/icon-thermo.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/icon-thermo.png)
温度
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/icon-world.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/icon-world.png)
氮氧化物 (NOx) 的减少
最佳燃烧
减少的CO2
dDSF ,通过在每个气缸中以最有效的空气和燃料比例,在所有发动机输出水平上实现最佳燃烧,从而提高燃油效率。
转换效率
减少氮氧化物
停缸减少了流经发动机的多余空气,提高了排气温度。这使得污染物在催化器中得到更有效的转化,减少了氮氧化物排放--而后处理系统的成本不变。
测试结果显示,氮氧化物减少74%,二氧化碳减少5%
以下结果取自适当的点火密度。可以看到, 涡轮机出口温度显著提高,从而使有效的后处理控制变为可能。
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-graph-3-mobile.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-graph-3-mobile.png)
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柴油发动机的停缸气门机构
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-valve-1.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-valve-1.png)
停缸
侧边摇臂
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-valve-2.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-valve-2.png)
停缸
摇臂
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-valve-3.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-valve-3.png)
停缸
推杆筒
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-valve-4.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-valve-4.png)
停缸
气门桥
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-valve-5.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-valve-5.png)
停缸
滚子液压挺柱
全球关于重型柴油机的氮氧化物和二氧化碳排放法规越来越严格。dDSF以低成本同时减少氮氧化物和二氧化碳排放。
独特的同时减少氮氧化物和二氧化碳
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-image-truck.jpg)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/ddsf-image-truck.jpg)
Hybrid++
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/hybrid-diagram-hiw_CH.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/hybrid-diagram-hiw.png)
Hybrid++如何工作
HYBRID++是一种简化的、获得专利的全部气缸停缸控制技术,适用于P0或P1轻度混合动力汽车,以达到同时提升燃油效率和显著减少有毒气体排放的效果。
HYBRID++™在现实世界中的应用
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-65.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-65.png)
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在高速公路并线时,所有气缸都会启动,混合动力电机提供扭矩辅助。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/hybrid-00-mobile_CH.gif)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/hybrid-00-mobile.gif)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/hybrid-situations-30mph.png)
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在低速巡航期间,电动马达可以在所有气缸停用的情况下推动车辆。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/hybrid-01-mobile_CH.gif)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/hybrid-01-mobile.gif)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/hybrid-situations-30mph.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/hybrid-situations-30mph.png)
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![](http://voa.cmithlj.com/wp-content/uploads/2021/05/hybrid-situations-30mph.png)
抬起加速踏板会使所有汽缸停用,并能进行更多的休整。没有空气被泵入排气管。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/hybrid-02-mobile_CH.gif)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/hybrid-02-mobile.gif)
Hybrid++消除了巡航和减速条件下的泵气损失。在停缸期间,由于空气不会被泵入排气管,Hybrid++也大大减少了催化器被泵气吹扫降温而产生的有害气体排放。
DSF 和48V轻度混合动力的协同作用使得燃油经济性更好,成本更低
eDSF如何工作
eDSF将停缸和车辆电气化协同起来,以增加动态停缸(DSF)的操作范围。通过在适当的点火和停缸时刻用电机扭矩对抗因停缸造成的发动机扭矩波动,eDSF可以实现更平稳的运行从而扩大DSF 的运行区间。
eDSF™在现实世界中的应用
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-65.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-65.png)
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![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-65.png)
在高速巡航时,电机扭矩对发动机进行补充,使其能够以较少的气缸进行工作。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/edsf-1-mobile_CH.gif)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/edsf-1-mobile.gif)
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在中低负荷时,由于扭矩平滑和扭矩辅助,扩大了工作范围,使eDSF的运行平稳而高效。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/edsf-2-mobile_CH.gif)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/edsf-2-mobile.gif)
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![](http://voa.cmithlj.com/wp-content/uploads/2021/04/dsf-situations-mph-25.png)
强化能量回收:eDSF关闭所有气缸(称为DCCO,即减速停缸),使混合动力系统能够通过再生充分捕获动能,而没有发动机制动损失。
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/edsf-3-mobile_CH2.gif)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/edsf-3-mobile.gif)
电气化实现了更平顺的扭矩
eDSF用已有的混动电机来平顺因停缸操作造成的扭矩波动
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/hybrid-graph-all-mobile_CH2.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/hybrid-graph-all-mobile@2x.png)
DSF 的操作范围得到增加
电机扭矩平顺和扭矩辅助扩大了可用点火密度范围
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/hybrid-graph4.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/hybrid-graph4.png)
DSF结合扭矩辅助,增加再生能量回收和平顺扭矩,使eDSF提供的收益超过了DSF 和轻度混合动力所能单独提供的收益之和。eDSF是一个真正1+1>2的整体。
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/edsf-image-interior.jpg)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/edsf-image-interior.jpg)
先进的燃烧
米勒循环发动机具有燃油经济性的前景,但单独的米勒循环发动机受到效率和性能权衡的限制
DSF®与这种先进的发动机燃烧策略协同工作,在解决其挑战的同时加强其优势。
mDSF使米勒循环发动机的燃油效率提高了一倍以上,同时降低了每百分比油耗改善的成本。
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/advanced-combustion.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/advanced-combustion.png)
mDSF如何工作
mDSF将DSF与米勒循环发动机结合起来,进一步增加每个汽缸的点火选择,有高火、低火和停缸三个选项,以配合扭矩需求,始终保持最佳效率,而不牺牲驾驶性能。
使用mDSF技术的动态气量管理系统的收益超过了DSF和米勒循环发动机所能单独提供的收益之和。
CO2
毒性气体排放
噪声和振动
仅仅在几年前,自动驾驶汽车还被认为是科幻小说中的内容。
今天,自动驾驶汽车是一项迅速发展的技术。这些车辆被设计成相互之间和云基础设施之间的无线连接,为发动机控制器提供有关车辆位置、交通、地形、障碍物、交通灯变化等可操作的信息。
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/adv-img-2.jpg)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/adv-img-2.jpg)
DSF 如何与自动驾驶协同工作
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/adv-graph-1-mobile.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/adv-graph-1-mobile.png)
图中的蓝色曲线说明了一个典型的急加速、减速、制动和停车的驾驶周期。橙色的曲线是指能预见交通信号和其他障碍物的自主车辆。
aDSF不仅对自动驾驶周期进行了优化,而且还对驾驶周期本身进行了优化,从而显著提高了燃油效率。此外,自动驾驶汽车可以在不同时间场合完全无人驾驶,不受噪音和振动的限制,从而带来进一步的aDSF效率优势。
CO2
驱动周期
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/alternative-fuels.jpg)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/alternative-fuels.jpg)
替代燃料
森林舞会游戏公司的DSF 控制策略可应用于旨在使用替代燃料的发动机,既能提高动力系统的效率,又能减少有害气体排放
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/adv-img-3.jpg)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/adv-img-3.jpg)
根据美国能源信息管理局的数据,在交通领域,替代燃料的增长速度预计将远远超过石油。随着DSF技术在汽油、柴油和替代燃料发动机中的应用 ,加上电动汽车的DMD 技术,森林舞会游戏准备在未来几十年内进一步改善排放和成本收益。
运输部门的小型石油和替代燃料消费(AEO2020参考案例) 十亿英热单位
![](http://voa.cmithlj.com/wp-content/uploads/2022/09/adv-graph-mobile-2_CH.png)
![](http://voa.cmithlj.com/wp-content/uploads/2021/05/adv-graph-2-mobile.png)