动态跳跃火灾
DSF® 技术可以使乘用车的效率提高5-15%
如何动态跳火(DSF)®)工作
DSF skips or fires individual cylinders dynamically on an event-by-event basis to meet the requested torque from an engine. Through careful control of the number and sequence of combustion events using patented algorithms, 发动机在接近最高效率时运转, 创建一个软件控制的可变排量引擎. 森林舞会游戏’s algorithms avoid noise and vibration generation to give drivers expected levels of refinement under all driving conditions.
DSF® 在现实世界中
当需要高扭矩时，DSF® 激活所有气缸.
随着扭矩需求的缓和，气缸根据需求动态跳过.
在较慢的速度下, 通过跳过更多的气缸来保持最大的燃油效率, 甚至在减速时跳过所有气缸.
DSF是如何实现的
发动机控制模块软件
气瓶停用硬件
森林舞会游戏的DSF适用于大多数停用阀机构
DSF依赖于单个汽缸的停用. Each cylinder fire or skip needs to be controlled by deactivation capable intake and exhaust valves.
阀门的停用可以通过液压或机电方式实现.
DSF has an excellent value proposition as evidenced by more than two million vehicles with DSF on the road today
森林舞会游戏开发了一项“关键技术”
达到燃油效率的要求。”
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Diesel机动态箕斗火灾
动态跳跃火灾 for Diesel Engines (dDSF™) enables Diesel engines to be both clean and green
如何Diesel机动态跳火(dDSF)™)工作
森林舞会游戏’s dDSF technology carefully controls the number and sequence of combustion events in a Diesel engine using patented algorithms to ensure the engine operates near peak efficiency. 由于较高的气缸负载, dDSF also increases exhaust gas temperatures to continue keeping the aftertreatment system at operating temperature, 特别是在低负荷条件下.
dDSF™ 在现实世界中
当需要高扭矩时，dDSFTM 激活所有气缸.
随着扭矩需求的缓和，气缸根据需求动态跳过.
在较慢的速度下, 通过跳过更多的气缸来保持最大的燃油效率, 甚至在减速时跳过所有气缸.
同时公司2 也没有x 最佳燃烧带来的好处
以及更高的转换效率
发动机控制
温度
也没有x 减少
最佳的燃烧
降低公司2
dDSF improves fuel efficiency by firing all events at the most efficient air to fuel ratio, 允许在所有发动机输出水平的最佳燃烧.
转换效率
减少不X
Cylinder deactivation reduces excess engine airflow and increases exhaust temperatures. This allows for more efficient conversion of pollutants in the catalyst and reduced NOx -在相同的后处理系统成本.
测试结果显示74% NOx 和5% CO2 减少
所显示的结果被映射为适当的射击密度. The improvement in turbine outlet temperature is dramatic, allowing effective aftertreament control.
Diesel机气门机构停用机械化
失活
手指追随者
失活
摇臂
失活
推杆墨盒
失活
阀桥
失活
滚子挺杆
Global regulations are becoming increasingly stringent for heavy-duty Diesel NOX 和有限公司2 排放. dDSF同时降低NOX 和有限公司2 低成本排放.
森林舞会游戏开发了一项关键技术
为了达到燃油效率的要求
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混合+ +
混合+ +是如何工作的
混合+ +是一个简化的, 专利的全缸失活控制技术, that is applicable to P0 or P1 Mild Hybrid Vehicles to achieve synergistic fuel efficiency gains and significant 有毒排放 减少s.
混合+ +™ 在现实世界中
All cylinders fire during highway merging and the hybrid motor provides torque assist.
During low-speed cruise, the electric motor can propel the vehicle with all cylinders deactivated
Lifting off the accelerator pedal causes all cylinders to deactivate and enables more recuperation. 没有空气被抽进排气口.
混合+ +消除了海岸和超限条件下的泵送损失. 因为熄火时空气不会被抽进排气口, 混合+ + also significantly reduces the harmful 排放 that otherwise come from purging the catalyst
CO2 减少
森林舞会游戏对动态跳跃火的研究成果
用于Hybrid系统
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DSF和48V轻度Hybrid协同作用，以更低的成本实现更好的燃油经济性
eDSF的工作原理
eDSF synergystically combines cylinder deactivation with vehicle electrification to increase the operating range of DSF. 通过在适当的火灾和跳跃中用电机扭矩抵消发动机扭矩, eDSF使DSF飞行区域的操作和扩展更加平稳.
eDSF™ 在现实世界中
公路巡航时, the motor torque supplements the engine enabling it to fire on fewer cylinders
在低至中等负载, the expanded operating range due to torque smoothing and torque assist enables smooth and efficient eDSF operation.
Enhanced Energy Recovery: eDSF shuts off all cylinders (called DCCO for 减速 Cut Off) allowing hybrid systems to fully capture kinetic energy through regeneration without engine braking loss.
电气化使扭矩更平稳
eDSF uses the existing hybrid motor to smooth torque pulses of skip fire operation
DSF工作范围增大
电 motor torque smoothing and torque assist extend the range of useful firing densities.
将扭矩辅助组合成DSF, increased regeneration and torque smoothing enables eDSF to deliver gains beyond what DSF and mild-hybrid could individually provide. eDSF是一个真正的整体，大于其各部分的总和.
先进的燃烧
米勒循环发动机具有燃油经济性的前景, 但在独立的基础上，受到效率和性能权衡的限制
DSF® works synergistically with this advanced engine combustion strategy to strengthen its advantages while addressing its challenges.
mDSF more than doubles the fuel efficiency improvement of Miller-cycle engines on a stand-alone basis, 同时降低了百分之百的成本改进.
msf是如何运作的
mDSF couples DSF with Miller-cycle engines to further increase each cylinder’s firing options with high-fire, low-fire and skip to match torque demand always at optimum efficiency without sacrificing drivability.
Dynamic charge management using mDSF has synergistic benefits beyond those provided by DSF and Miller-cycle engines individually.
CO2 减少
有毒排放
噪音，振动，粗糙
森林舞会游戏的研究和发展出版物
使用DSF的高级应用程序®
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就在几年前，无人驾驶汽车还被认为是科幻小说
如今，自动驾驶汽车是一项快速发展的技术. These vehicles are designed to be wirelessly connected to each other and the cloud infrastructure, 向发动机控制器提供有关车辆位置的可操作信息, 交通, 地形, 障碍, 交通灯变化, 和更多的.
DSF如何与自治协同工作
The blue curve in the graph illustrates a typical drive cycle of rapid accelerations, 经济放缓, 制动和停止. The orange curve is for an autonomous vehicle that anticipates 交通 signals and other 障碍.
aDSF delivers significant fuel efficiency gains by not only optimizing for the autonomous drive cycle but also optimizing the drive cycle itself. 此外, 自动驾驶汽车可以在不同时间完全无人驾驶, 不受噪音限制, 振动和粗糙问题, 从而进一步提高aDSF效率.
CO2 减少
驾驶循环
ARPA-E NEXTCAR项目
互联和自动驾驶汽车协作
森林舞会游戏的研究和发展出版物
使用自治的高级应用程序
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可替代燃料
森林舞会游戏’s DSF control strategies can be applied to engines designed to use alternative fuels, 既能提高动力系统效率，又能减少有害气体排放
根据U.S. 能源情报署, alternative fuels are projected to grow much faster than petroleum in the transportation sector. 汽油用DSF, Diesel, 以及替代燃料, 加上电动汽车的DMD技术, 森林舞会游戏 is poised to further improve emission and cost benefits for decades into the future.
Transportation sector consumption of minor petroleum 以及替代燃料 (AEO2020 Reference case) quadrillion British thermal units
