Increased engine braking with adjustable valve timing
    42.
    发明授权
    Increased engine braking with adjustable valve timing 有权
    增加发动机制动,可调节气门正时

    公开(公告)号:US07201140B2

    公开(公告)日:2007-04-10

    申请号:US10888716

    申请日:2004-07-08

    Abstract: A system and method for operating at least an intake and exhaust valve in a cylinder with a piston of an engine in a vehicle are described. In one aspect, the method comprises maintaining at least one of the intake and exhaust valves in a closed position during a period. Further, during said period where said at least one valve is in said closed position, the method may also include opening the other of the intake and exhaust valve, then closing the other of the intake and exhaust valve, and then opening the other of the intake and exhaust valve.

    Abstract translation: 描述了一种用于在汽车中至少具有车辆中的发动机的活塞的进气门和排气阀的系统和方法。 在一个方面,该方法包括在一段时间内将进气门和排气门中的至少一个保持在关闭位置。 此外,在所述至少一个阀处于所述关闭位置的所述时段期间,所述方法还可以包括打开进气和排气阀中的另一个,然后关闭进气和排气阀中的另一个,然后打开另一个 进排气阀。

    Engine and exhaust heating
    46.
    发明授权
    Engine and exhaust heating 有权
    发动机和排气加热

    公开(公告)号:US08118008B2

    公开(公告)日:2012-02-21

    申请号:US13149410

    申请日:2011-05-31

    CPC classification number: F02P5/1508 F02P5/1506 F02P5/152 Y02T10/46

    Abstract: A method for controlling a vehicle engine having a plurality of cylinders is provided. The method comprises: during engine idling, advancing spark timing of at least one cylinder to before a peak torque timing, and retarding spark timing from the advanced timing toward the peak torque timing in response to decreased engine speed to maintain idling speed.

    Abstract translation: 提供一种用于控制具有多个气缸的车辆发动机的方法。 该方法包括:在发动机怠速期间,将至少一个气缸的火花正时推进到峰值扭矩定时之前,并且响应于减小的发动机转速来延迟从高速定时朝向峰值扭矩定时的火花正时,以保持怠速。

    Vehicle braking control
    48.
    发明授权
    Vehicle braking control 有权
    车辆制动控制

    公开(公告)号:US07930087B2

    公开(公告)日:2011-04-19

    申请号:US11465414

    申请日:2006-08-17

    Abstract: A method of operating an engine for a vehicle having at least a first cylinder, the method comprising of operating the first cylinder to provide at least one of compression braking and expansion braking by holding one of an intake valve and an exhaust valve of the first cylinder closed while opening, closing, and opening the other of the intake valve and the exhaust valve during a cycle of the first cylinder and during a first vacuum level of an intake manifold upstream of the first cylinder; and operating the first cylinder to provide at least one of compression braking and expansion braking by operating both the intake valve and the exhaust valve of the first cylinder during a cycle of the first cylinder to allow at least some air to flow through the first cylinder during a second vacuum level of the intake manifold.

    Abstract translation: 一种操作具有至少第一气缸的车辆的发动机的方法,所述方法包括操作所述第一气缸以通过将所述第一气缸的进气门和排气阀中的一个保持在压缩制动和膨胀制动中的至少一个 在第一气缸的循环期间和在第一气缸上游的进气歧管的第一真空度期间打开,关闭和打开另一个进气门和排气阀时关闭; 以及通过在所述第一气缸的循环期间操作所述第一气缸的所述进气门和所述排气阀两者来操作所述第一气缸以提供压缩制动和膨胀制动中的至少一个,以允许至少一些空气通过所述第一气缸流过所述第一气缸 进气歧管的第二真空度。

    Approach for facilitating engine mode transitions
    49.
    发明授权
    Approach for facilitating engine mode transitions 有权
    促进发动机模式转换的方法

    公开(公告)号:US07748355B2

    公开(公告)日:2010-07-06

    申请号:US11532447

    申请日:2006-09-15

    Abstract: A method of transitioning a cylinder of an engine from a spark ignition mode to a homogeneous charge compression ignition mode, the cylinder having at least one electrically actuated intake valve and at least one exhaust valve, the method comprising of before a transition, operating the cylinder with at least some overlap between an opening event of the intake valve and an opening event of the exhaust valve in the spark ignition mode; in response to a transition request, operating the cylinder with at least some negative overlap between an opening event of the intake valve and an opening event of the exhaust valve, retarding the intake valve opening and closing timing by different amounts and retarding ignition timing; and further increasing negative overlap and performing the homogeneous charge compression ignition mode.

    Abstract translation: 一种将发动机气缸从火花点火模式转换到均质充气压缩点火模式的方法,所述气缸具有至少一个电动进气阀和至少一个排气阀,该方法包括在过渡之前,操作气缸 在所述进气阀的打开事件与所述排气阀在所述火花点火模式下的打开事件之间至少有一些重叠; 响应于过渡请求,在进气门的打开事件和排气阀的打开事件之间至少具有一些负重叠的情况下操作气缸,通过不同的量阻止进气门打开和关闭正时,并延迟点火正时; 并进一步增加负重叠并执行均匀充电压缩点火模式。

    Multi-stroke internal combustion engine for facilitation of auto-ignition operation
    50.
    发明授权
    Multi-stroke internal combustion engine for facilitation of auto-ignition operation 有权
    多冲程内燃机,便于自动点火操作

    公开(公告)号:US07426916B2

    公开(公告)日:2008-09-23

    申请号:US11554526

    申请日:2006-10-30

    Abstract: A method of operating an engine having at least one cylinder including an intake valve and an exhaust valve, the method comprising of injecting a first amount of fuel into the cylinder; auto-igniting a first mixture of air and said first amount of fuel by compressing said first mixture; injecting a second amount of fuel into the cylinder after auto-igniting said first mixture; combusting a second mixture of said second amount of fuel and gasses from auto-ignition of said first mixture; holding an intake valve of the cylinder closed between auto-igniting the first mixture and combusting the second mixture; and exhausting said combusted second mixture.

    Abstract translation: 一种操作具有至少一个气缸的发动机的方法,所述气缸包括进气门和排气门,所述方法包括:将第一量的燃料喷射到气缸中; 通过压缩所述第一混合物自动点燃空气和所述第一量的燃料的第一混合物; 在自动点燃所述第一混合物之后,将第二量的燃料喷射到所述气缸中; 从所述第一混合物的自动点火燃烧所述第二量的燃料和气体的第二混合物; 在自动点燃第一混合物并燃烧第二混合物之间,保持气缸的进气门关闭; 并排出所述燃烧的第二混合物。

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