公开(公告)号：US07934372B2

公开(公告)日：2011-05-03

申请号：US12086997

申请日：2007-01-10

申请人： Takashi Haseyama ,  Takao Onodera ,  Yoshinobu Watanabe ,  Tatsuo Mashiko

发明人： Takashi Haseyama ,  Takao Onodera ,  Yoshinobu Watanabe ,  Tatsuo Mashiko

IPC分类号： F01N3/025

CPC分类号： B01D53/944 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2258/012 ,  F01N3/023 ,  F01N3/035 ,  F01N2250/02 ,  F02D41/025 ,  F02D41/029 ,  F02D41/405 ,  F02D2200/0802 ,  F02D2200/703 ,  Y02T10/26 ,  Y02T10/44

摘要： In an exhaust gas purification system (1) for conducting control of raising temperature of a DPF (12b) by supplying an unburned fuel to an upstream side of an oxidation catalyst to oxidize it, a minimum value (Qumin) of a first upper limit value (Qu1) acquired by subtracting a fuel injection amount (Qe) for in-cylinder combustion from a first combustible fuel amount (Qa1) limited by an air/fuel ratio, a second upper limit value (Qu2) acquired by subtracting the fuel injection amount (Qe) for in-cylinder combustion from a second combustible fuel amount (Qa2) limited by an atmospheric pressure, and a third upper limit value (Qu3), which is a third combustible fuel amount (Qa3) which can be oxidized by the oxidation catalyst limited by a catalyst temperature index temperature (Tg1, Tg2) and an engine speed (Ne) is set as an upper limit value (Qu) for the unburned fuel supply amount (Qp). By this arrangement, at forced regeneration of the DPF (12b), the unburned fuel supplied into an exhaust gas is surely oxidized and generation of white smoke is prevented regardless of an operation state of an internal combustion engine (10).

摘要翻译： 在排气净化系统（1）中，通过向氧化催化剂的上游侧供给未燃燃料进行氧化来进行DPF（12b）的升温控制，将第一上限值（Qumin）的最小值（Qumin） （Qu1）从通过空燃比限制的第一可燃燃料量（Qa1）减去用于缸内燃烧的燃料喷射量（Qe）而获得的第二上限值（Qu2），通过减去燃料喷射量 （Qa），第三可燃燃料量（Qa3）的第三上限值（Qu3），该第三可燃燃料量（Qa3）可以被氧化而被氧化 由催化剂温度指数温度（Tg1，Tg2）和发动机转速（Ne）限制的催化剂被设定为未燃燃料供给量（Qp）的上限值（Qu）。 通过这种布置，在DPF（12b）的强制再生时，不管内燃机（10）的运行状态如何，被供给到排气中的未燃燃料被确实地氧化，并且防止产生白烟。

公开(公告)号：US08549843B2

公开(公告)日：2013-10-08

申请号：US12224605

申请日：2006-11-21

申请人： Kenji Hagio ,  Takashi Ikeda ,  Shigeru Ikeda ,  Takao Onodera ,  Tatsuo Mashiko

发明人： Kenji Hagio ,  Takashi Ikeda ,  Shigeru Ikeda ,  Takao Onodera ,  Tatsuo Mashiko

IPC分类号： F01N3/02 ,  B01D53/94 ,  F02D41/40

CPC分类号： B01D53/9495 ,  B01D2258/012 ,  F01N3/0235 ,  F01N3/035 ,  F01N2430/06 ,  F02D9/02 ,  F02D41/024 ,  F02D41/0245 ,  F02D41/025 ,  F02D41/027 ,  F02D41/029 ,  F02D41/1446 ,  F02D41/40 ,  F02D41/402 ,  F02D41/405 ,  F02D2009/0222 ,  F02D2200/0802 ,  F02D2200/604 ,  Y02T10/26 ,  Y02T10/44

摘要： In in-cylinder fuel multi-injection conducted during forced regeneration of a diesel particulate filter (“DPF”), control maps for multi-injection are constructed so as to be different for a first gas temperature raising control, which raises a catalyst temperature index temperature to a first judgment temperature only by multi-injection, and for a subsequent second exhaust gas temperature raising control, wherein post-injection is conducted in addition to multi-injection to raise a filter temperature index temperature to a second judgment temperature. In so doing, exhaust gas flowing into the DPF can be rapidly raised in temperature when performing forced regeneration of the DPF, thereby shortening the forced regeneration time and improving fuel consumption for forced regeneration.

摘要翻译： 在柴油机微粒过滤器（“DPF”）的强制再生期间进行的缸内燃料多次喷射中，多喷射控制图被构造为对于第一气体升温控制是不同的，这提高了催化剂温度指数 温度仅通过多次喷射而达到第一判断温度，并且对于随后的第二排气升温控制，其中除了多次喷射之外还进行后喷射以将过滤器温度指数温度升高到第二判断温度。 在这样做时，当进行DPF的强制再生时，流入DPF的废气可以迅速升高，从而缩短强制再生时间，提高强制再生的燃料消耗。

公开(公告)号：US08001774B2

公开(公告)日：2011-08-23

申请号：US12223389

申请日：2007-01-10

申请人： Takao Onodera ,  Takashi Haseyama ,  Yoshinobu Watanabe ,  Takuro Iwashita ,  Kenji Hagio ,  Tatsuo Mashiko

发明人： Takao Onodera ,  Takashi Haseyama ,  Yoshinobu Watanabe ,  Takuro Iwashita ,  Kenji Hagio ,  Tatsuo Mashiko

IPC分类号： F01N3/00 ,  F01N1/00

CPC分类号： F02D41/029 ,  F01N3/0235 ,  F01N3/035 ,  F01N3/106 ,  F01N9/002 ,  F01N13/0097 ,  F01N2240/36 ,  F01N2250/02 ,  F01N2430/085 ,  F01N2900/08 ,  F01N2900/1602 ,  F02D9/04 ,  F02D9/06 ,  F02D41/042 ,  F02D41/402 ,  F02D41/405 ,  F02D2200/0802 ,  F02D2200/0804 ,  F02D2200/0812 ,  F02M26/23 ,  Y02A50/2322 ,  Y02T10/47

摘要： At regeneration control while a vehicle mounting an internal combustion engine (10) is parked, both an exhaust throttle valve (13) and an exhaust brake valve (18) are used and if a catalyst temperature index temperature (Tg2) is lower than a predetermined first determining temperature (Tc1), first exhaust gas temperature rise control is conducted that the exhaust brake valve (18) is set to a fully closed side and multiple injection is carried out in in-cylinder fuel injection control, while if a catalyst temperature index temperature (Tg2) is equal to the predetermined first determining temperature (Tc1) or above, second exhaust gas temperature rise control is conducted that the exhaust brake valve (18) is set to an open side, the exhaust throttle valve (13) is set to the fully closed side, and post injection is carried out in the in-cylinder fuel injection control. By this arrangement, while temperature rise efficiency of an exhaust gas flowing into a DPF (12) is enhanced, forced regeneration is carried out efficiently in a short time with avoiding overheat or abnormal combustion at the regeneration control of the DPF (12) while the vehicle is parked.

摘要翻译： 在安装内燃机（10）的车辆停放时的再生控制中，使用排气节流阀（13）和排气制动阀（18），并且如果催化剂温度指数温度（Tg2）低于预定的 首先确定温度（Tc1），进行第一废气升温控制，即排气制动阀（18）被设定为全封闭侧，并且在缸内燃料喷射控制中进行多次喷射，而如果催化剂温度指数 温度（Tg2）等于预定的第一确定温度（Tc1）以上时，进行第二排气升温控制，使排气制动阀（18）设定为开放侧，排气节流阀（13）被设定 到完全关闭侧，并且在缸内燃料喷射控制中进行后喷射。 通过这种布置，当提高流入DPF（12）的废气的温度上升效率时，在DPF（12）的再生控制中避免过热或异常燃烧，在短时间内有效地进行强制再生，同时 车停了。

公开(公告)号：US07043903B2

公开(公告)日：2006-05-16

申请号：US11082826

申请日：2005-03-18

申请人： Takao Onodera ,  Tatsuo Mashiko

发明人： Takao Onodera ,  Tatsuo Mashiko

IPC分类号： F01N3/00

CPC分类号： F02D41/029 ,  F01N3/0231 ,  F02D41/402 ,  F02D41/405 ,  F02D2041/228 ,  F02D2200/0812 ,  F02D2250/11 ,  Y02T10/44

摘要： An exhaust gas purification system (1) including a continuous regeneration-type DPF (13) and a DPF control (30c) is composed to perform an exhaust gas temperature raising control by multi-injection in the case where the collecting quantity (ΔPm) exceeds a first temperature rising judgment collecting quantity (ΔP01) lower than a predetermined collecting quantity (ΔP1) and, thereafter, to stop the exhaust gas temperature raising control by multi-injection in the case where the collecting quantity (ΔPm) becomes lower than a predetermined second temperature rising judgment collecting quantity (ΔP02) lower than the predetermined first temperature rising judgment collecting quantity (ΔP01).Thereby, frequency of the manual regeneration switch operation can be reduced remarkably, and the operability for a driver can be improved, in the exhaust gas purification system (1) prompting the driver to stop the vehicle and perform the forced regeneration by the manual regeneration switch, in the case of detecting that the detected collecting quantity (ΔPm) is higher than the predetermined judgment collecting quantity (ΔP1), concerning the regeneration of the continuous regeneration-type diesel particulate filter device (13).

摘要翻译： 构成包括连续再生型DPF（13）和DPF控制装置（30c）的排气净化系统（1），在收集量（ΔP<1）的情况下，通过多次喷射进行排气升温控制， 超过比预定收集量（ΔP1）低的第一升温判定收集量（DeltaP 01），然后，在通过多次喷射来停止排气升温控制的情况下， 收集量（DeltaPm）变得低于低于预定的第一升温判定收集量（ΔP01）的预定的第二升温判断收集量（DeltaP 02）。 由此，能够显着降低手动再生开关动作的频率，能够提高驾驶员的操作性，在排气净化系统（1）中提示驾驶员停止车辆并通过手动再生开关进行强制再生 在检测到所检测到的收集量（DeltaP＆lt; m＆gt;）高于预定的判断收集量（DeltaP 1）的情况下，关于连续再生型柴油微粒过滤装置（13）的再生 ）。

公开(公告)号：US20050217253A1

公开(公告)日：2005-10-06

申请号：US11082826

申请日：2005-03-18

申请人： Takao Onodera ,  Tatsuo Mashiko

发明人： Takao Onodera ,  Tatsuo Mashiko

IPC分类号： F02D45/00 ,  B01D46/42 ,  B01D53/94 ,  F01N3/02 ,  F01N3/023 ,  F01N3/24 ,  F02D41/02 ,  F02D41/38 ,  F02D41/40 ,  F01N3/00 ,  F01N3/10

CPC分类号： F02D41/029 ,  F01N3/0231 ,  F02D41/402 ,  F02D41/405 ,  F02D2041/228 ,  F02D2200/0812 ,  F02D2250/11 ,  Y02T10/44

摘要： An exhaust gas purification system (1) comprising a continuous regeneration-type DPF (13) and a DPF control means (30C) is composed to perform an exhaust gas temperature raising control by multi-injection in the case where the collecting quantity (ΔPm) exceeds a predetermined first temperature rising judgment collecting quantity (ΔP01) lower than a predetermined collecting quantity (ΔP1) and, thereafter, to stop the exhaust gas temperature raising control by multi-injection in the case where the collecting quantity (ΔPm) becomes lower than a predetermined second temperature rising judgment collecting quantity (ΔP02) lower than the predetermined first temperature rising judgment collecting quantity (ΔP01). Thereby, frequency of the manual regeneration switch operation can be reduced remarkably, and the operability for a driver can be improved, in the exhaust gas purification system (1) prompting the driver to stop the vehicle and perform the forced regeneration by the manual regeneration switch, in the case of detecting that the detected collecting quantity (ΔPm) is higher than the predetermined judgment collecting quantity (ΔP1), concerning the regeneration of the continuous regeneration-type diesel particulate filter device (13).

摘要翻译： 包括连续再生型DPF（13）和DPF控制装置（30C）的废气净化系统（1）构成为在收集量（ΔPm）的情况下通过多次喷射进行排气升温控制 ）超过低于预定收集量（ΔP1）的预定的第一升温判定收集量（DeltaP 01），然后在收集量（ΔPm）的情况下，通过多次喷射来停止排气升温控制 低于比预定的第一升温判定收集量（ΔP01）低的预定的第二升温判定收集量（DeltaP 02）。 由此，能够显着降低手动再生开关动作的频率，能够提高驾驶员的操作性，在排气净化系统（1）中提示驾驶员停止车辆并通过手动再生开关进行强制再生 在检测到连续再生型柴油微粒过滤装置（13）的再生时检测到检测出的收集量（DeltaPm）高于预定判定收集量（DeltaP 1）的情况。

公开(公告)号：US20090165445A1

公开(公告)日：2009-07-02

申请号：US12086997

申请日：2007-01-10

申请人： Takashi Haseyama ,  Takao Onodera ,  Yoshinobu Watanabe ,  Tatsuo Mashiko

发明人： Takashi Haseyama ,  Takao Onodera ,  Yoshinobu Watanabe ,  Tatsuo Mashiko

IPC分类号： F01N9/00 ,  F01N3/10

CPC分类号： B01D53/944 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2258/012 ,  F01N3/023 ,  F01N3/035 ,  F01N2250/02 ,  F02D41/025 ,  F02D41/029 ,  F02D41/405 ,  F02D2200/0802 ,  F02D2200/703 ,  Y02T10/26 ,  Y02T10/44

摘要： In an exhaust gas purification system (1) for conducting control of raising temperature of a DPF (12b) by supplying an unburned fuel to an upstream side of an oxidation catalyst to oxidize it, a minimum value (Qumin) of a first upper limit value (Qu1) acquired by subtracting a fuel injection amount (Qe) for in-cylinder combustion from a first combustible fuel amount (Qa1) limited by an air/fuel ratio, a second upper limit value (Qu2) acquired by subtracting the fuel injection amount (Qe) for in-cylinder combustion from a second combustible fuel amount (Qa2) limited by an atmospheric pressure, and a third upper limit value (Qu3), which is a third combustible fuel amount (Qa3) which can be oxidized by the oxidation catalyst limited by a catalyst temperature index temperature (Tg1, Tg2) and an engine speed (Ne) is set as an upper limit value (Qu) for the unburned fuel supply amount (Qp). By this arrangement, at forced regeneration of the DPF (12b), the unburned fuel supplied into an exhaust gas is surely oxidized and generation of white smoke is prevented regardless of an operation state of an internal combustion engine (10).

摘要翻译： 在排气净化系统（1）中，通过向氧化催化剂的上游侧供给未燃燃料进行氧化来进行DPF（12b）的升温控制，将第一上限值（Qumin）的最小值（Qumin） （Qu1）从通过空燃比限制的第一可燃燃料量（Qa1）减去用于缸内燃烧的燃料喷射量（Qe）而获得的第二上限值（Qu2），通过减去燃料喷射量 （Qa），第三可燃燃料量（Qa3）的第三上限值（Qu3），该第三可燃燃料量（Qa3）可以被氧化而被氧化 由催化剂温度指数温度（Tg1，Tg2）和发动机转速（Ne）限制的催化剂被设定为未燃燃料供给量（Qp）的上限值（Qu）。 通过这种布置，在DPF（12b）的强制再生时，不管内燃机（10）的运行状态如何，被供给到排气中的未燃燃料被确实地氧化，并且防止产生白烟。

公开(公告)号：US20090007549A1

公开(公告)日：2009-01-08

申请号：US12224605

申请日：2006-11-21

申请人： Kenji Hagio ,  Takashi Ikeda ,  Shigeru Ikeda ,  Takao Onodera ,  Tatsuo Mashiko

发明人： Kenji Hagio ,  Takashi Ikeda ,  Shigeru Ikeda ,  Takao Onodera ,  Tatsuo Mashiko

IPC分类号： F01N9/00

CPC分类号： B01D53/9495 ,  B01D2258/012 ,  F01N3/0235 ,  F01N3/035 ,  F01N2430/06 ,  F02D9/02 ,  F02D41/024 ,  F02D41/0245 ,  F02D41/025 ,  F02D41/027 ,  F02D41/029 ,  F02D41/1446 ,  F02D41/40 ,  F02D41/402 ,  F02D41/405 ,  F02D2009/0222 ,  F02D2200/0802 ,  F02D2200/604 ,  Y02T10/26 ,  Y02T10/44

摘要： In in-cylinder fuel multi-injection conducted during forced regeneration of a DPF (12b), control maps for multi-injection are constructed so as to be different for a first gas temperature raising control, which raises a catalyst temperature index temperature (Tg2, Tg1) to a first judgment temperature (Tc1) only by multi-injection, and for a subsequent second exhaust gas temperature raising control, wherein post-injection is conducted in addition to multi-injection to raise a filter temperature index temperature (Tg2) to a second judgment temperature (Tc2). In so doing, exhaust gas flowing into the DPF (12b) can be rapidly raised in temperature when performing forced regeneration of the DPF (12b), thereby shortening the forced regeneration time and improving fuel consumption for forced regeneration.

摘要翻译： 在DPF（12b）的强制再生期间进行的缸内燃料多次喷射中，对于第一气体升温控制，构成多喷射控制图，提高催化剂温度指数温度（Tg2， Tg1）到第一判断温度（Tc1），并且对于随后的第二排气升温控制，除了多次喷射之外进行后喷射以将过滤器温度指数温度（Tg2）提高到 第二判断温度（Tc2）。 在这样做时，当进行DPF（12b）的强制再生时，流入DPF（12b）的废气可以迅速升高，从而缩短强制再生时间，提高强制再生的燃料消耗。

公开(公告)号：US08646254B2

公开(公告)日：2014-02-11

申请号：US12449071

申请日：2007-12-19

申请人： Takao Onodera ,  Akira Hirata ,  Takashi Haseyama ,  Shinji Gotou ,  Hitoshi Satou ,  Tatsuo Mashiko ,  Futoshi Nakano ,  Kouichirou Yomogida

发明人： Takao Onodera ,  Akira Hirata ,  Takashi Haseyama ,  Shinji Gotou ,  Hitoshi Satou ,  Tatsuo Mashiko ,  Futoshi Nakano ,  Kouichirou Yomogida

IPC分类号： F01N3/00

CPC分类号： F02D41/029 ,  B01D46/0061 ,  B01D46/2418 ,  B01D46/46 ,  B01D2279/30 ,  F01N3/023 ,  F01N9/002 ,  F01N11/002 ,  F01N2900/102 ,  F02D2200/0812 ,  Y02T10/47

摘要： Forced regeneration start timing of a diesel particulate filter for purifying particulate matter in exhaust gas is judged based on a comparison of a differential pressure across the diesel particulate filter with a predetermined differential pressure threshold across the filter. The predetermined differential pressure threshold is set by multiplying a reference differential pressure threshold by a coefficient which varies stepwise or continuously depending on a mileage of a vehicle after previous forced regeneration. Consequently, particulate matter can be removed by burning while the amount of particulate matter accumulated unevenly in the filter is still small, and excessive temperature rise in the filter resulting from excessive accumulation of particulate matter during forced regeneration and melting-loss of the filter due to excessive temperature rise can be prevented.

摘要翻译： 基于柴油机微粒过滤器两端的压差与过滤器两端的规定压差阈值进行比较，判断用于净化废气中的颗粒物质的柴油微粒过滤器的强制再生开始时刻。 通过将基准压差阈值乘以根据先前强制再生之后的车辆行驶里程而逐步或连续变化的系数来设定预定差压阈值。 因此，可以通过燃烧来除去颗粒物质，同时过滤器中不均匀地累积的颗粒物质的量仍然很小，并且过滤器由于强制再生过程中的过度积聚而导致过高的温度上升，并且由于过滤器的熔化损失 可以防止过度的温度上升。

公开(公告)号：US08011178B2

公开(公告)日：2011-09-06

申请号：US11992538

申请日：2006-09-13

申请人： Shigeru Ikeda ,  Takashi Ikeda ,  Takao Onodera ,  Tatsuo Mashiko

发明人： Shigeru Ikeda ,  Takashi Ikeda ,  Takao Onodera ,  Tatsuo Mashiko

IPC分类号： F01N3/00

CPC分类号： F01N3/023 ,  B01D53/9495 ,  B01D2258/012 ,  F02D41/024 ,  F02D41/027 ,  F02D41/029 ,  F02D41/1446 ,  F02D41/402 ,  F02D41/403 ,  F02D41/405 ,  F02D2009/0222 ,  F02D2009/0223 ,  F02D2009/0225 ,  Y02T10/26 ,  Y02T10/44

摘要： In regeneration control in a manual regeneration mode, when a first exhaust gas temperature of an exhaust gas flowing into an oxidation catalyst device is higher than a predetermined determining temperature and an exhaust gas temperature flowing into a DPF device is higher than a predetermined determining temperature and when an intake temperature becomes higher than a predetermined third determining temperature, second exhaust gas temperature control carrying out post injection in addition to multi injection is stopped and switched to third exhaust gas temperature rise control carrying out the post injection in addition to normal injection. Thus, temperature rise of an engine cooling water can be restricted without stopping an air conditioner, and possible overheating of the engine can be prevented.

摘要翻译： 在手动再生模式的再生控制中，当流入氧化催化剂装置的废气的第一废气温度高于预定的确定温度并且流入DPF装置的排气温度高于预定的确定温度时， 当进气温度高于预定的第三确定温度时，除了多次喷射之外执行后喷射的第二排气温度控制被停止，并且除了正常喷射之外，切换到执行后喷射的第三排气温度升高控制。 因此，可以限制发动机冷却水的温度上升而不停止空调，并且可以防止发动机的过热。

公开(公告)号：US07992383B2

公开(公告)日：2011-08-09

申请号：US12223443

申请日：2007-01-10

申请人： Takao Onodera ,  Takashi Haseyama ,  Yoshinobu Watanabe ,  Takuro Iwashita ,  Kenji Hagio ,  Tatsuo Mashiko

发明人： Takao Onodera ,  Takashi Haseyama ,  Yoshinobu Watanabe ,  Takuro Iwashita ,  Kenji Hagio ,  Tatsuo Mashiko

IPC分类号： F01N3/00 ,  F01N3/02

CPC分类号： F02D41/029 ,  F01N3/0235 ,  F01N3/035 ,  F01N3/106 ,  F01N9/002 ,  F01N13/0097 ,  F01N2430/085 ,  F01N2560/06 ,  F02D9/04 ,  F02D9/06 ,  F02D41/086 ,  F02D2200/0802 ,  F02D2200/0804 ,  F02M26/23 ,  Y02T10/47

摘要： In regeneration control, when the catalyst temperature index temperature (Tg2) using the temperature of the oxidation catalyst (12a) as an index is below a predetermined first determination temperature (Tc1), the engine speed of idling is brought to a predetermined first target engine speed (Nei1) which is higher than the engine speed of idling (Nei0) in the ordinary operation, and, further, multi-injection is carried out. On the other hand, when the catalyst temperature index temperature (Tg2) is the predetermined first determination temperature (Tc1) or above, the engine speed of idling is brought to a predetermined second target engine speed (Nei2), which is lower than the predetermined first target engine speed (Nei1) and is higher than the engine speed of idling (Nei0) in ordinary operation, and, further, post injection is carried out, followed by raising of the temperature of an exhaust gas flown into a DPF apparatus (12b) to a predetermined second determination temperature (Tc2). According to the above constitution, in the regeneration control of the DPF apparatus (12b) in an internal combustion engine (10), the regeneration can be forcibly carried out with high efficiency while enhancing the temperature rise efficiency of the exhaust gas, and, at the same time, excessive rise in the exhaust temperature, a deterioration in fuel consumption, and the occurrence of noise are suppressed.

摘要翻译： 在再生控制中，当使用氧化催化剂（12a）的温度作为指标的催化剂温度指数温度（Tg2）低于预定的第一确定温度（Tc1）时，将空转的发动机转速提供给预定的第一目标发动机 在通常的运转中高于发动机转速（Nei0）的速度（Nei1），进一步进行多次喷射。 另一方面，当催化剂温度指数温度（Tg2）为规定的第一判定温度（Tc1）以上时，使空转的发动机转速达到规定的第二目标发动机转速（Nei2），该第二目标发动机转速低于规定值 第一目标发动机转速（Nei1）并且在正常操作中高于怠速发动机转速（Nei0），此外，进行后喷射，随后升高流入DPF装置的排气温度（12b ）到预定的第二确定温度（Tc2）。 根据上述结构，在内燃机（10）中的DPF装置（12b）的再生控制中，能够在提高排气的升温效率的同时高效率地强制地进行再生，并且在 同时，排气温度的过度上升，燃料消耗的恶化和噪音的发生被抑制。