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1. 发明公开

EP2102473A1 KRAFTSTOFFEINSPRITZSYSTEM UND VERFAHREN ZUM ERMITTELN EINES NADELHUBANSCHLAGS IN EINEM KRAFTSTOFFEINSPRITZVENTIL 审中-公开
标题翻译：燃油喷射系统和一种用于确定NADELHUBANSCHLAGS的燃料喷射阀
公开(公告)号：EP2102473A1
公开(公告)日：2009-09-23
申请号：EP07847292.5
申请日：2007-11-23
申请人： Robert Bosch GmbH
发明人： RAU, Andreas , BECKER, Oliver , TONNER, Erik
IPC分类号： F02D41/20
CPC分类号： F02D41/2096 , F02D2041/2051
摘要： The invention relates to a fuel injection system comprising at least one fuel injection valve (10) and a control unit (20) for actuating the injection valve (10). Each injection valve (10) comprises a piezoelectric actuator (12), a nozzle element having at least one nozzle opening (15) and at least one movable nozzle needle (13) for selectively closing and opening the at least one nozzle opening (15), a hydraulic coupling element which is connected between the piezoelectric actuator (12) and the nozzle needle (13), and at least one stroke stop (14, 21), against which the nozzle needle (13) bears in its completely open and/or its completely closed position. In order for it to be possible to determine the reaching of the stroke stop (14; 21) in an improved manner in fuel injection valves (10) of this type, it is proposed that the needle stroke stop (14, 21) is determined during a current application pause of the piezoelectric actuator (12) by evaluation of a voltage signal (U) which prevails at the piezoelectric actuator (12). Oscillations of the voltage signal (U) during the current application pause are preferably evaluated. To this end, it is proposed that regression straight lines (30; 31) are laid through the voltage profile (U), a correlation coefficient of the regression straight lines (30; 31) to the voltage profile (U) is determined and a needle stroke stop is detected using the correlation coefficient.

2. 发明公开

EP1999359A1 VERFAHREN ZUR BESTIMMUNG EINER ÖFFNUNGSSPANNUNG EINES PIEZOELEKTRISCHEN INJEKTORS 有权
标题翻译：程序用于开式张力压电喷油嘴
公开(公告)号：EP1999359A1
公开(公告)日：2008-12-10
申请号：EP07712521.9
申请日：2007-03-14
申请人： Robert Bosch GmbH
发明人： BREITBACH, Thomas , BECKER, Oliver
IPC分类号： F02D41/20 , F02D41/24
CPC分类号： F02D41/2096 , F02D41/2432 , F02D41/247 , F02D2041/2055
摘要： Method of determining an opening voltage of an injector (12) having a piezoelectric actuator (28), in particular of an injector (12) of an internal combustion engine, wherein an initial voltage (UA) is applied to the piezoelectric actuator (28) in the closed state of the injector (12) and the voltage (U) for opening the injector (12) is lowered by energizing the piezoelectric actuator (28). The energizing is interrupted at a holding voltage (UH1, UH2, UH3, … UHn) and after that the voltage change (ΔU) applied to the piezoelectric actuator (28) is measured over time, wherein, when voltage rises, it is recognized that the opening voltage (UOE) is reached.

3. 发明授权

EP1999359B1 VERFAHREN ZUR BESTIMMUNG EINER ÖFFNUNGSSPANNUNG EINES PIEZOELEKTRISCHEN INJEKTORS 有权
标题翻译：程序用于开式张力压电喷油嘴
公开(公告)号：EP1999359B1
公开(公告)日：2012-02-29
申请号：EP07712521.9
申请日：2007-03-14
申请人： Robert Bosch GmbH
发明人： BREITBACH, Thomas , BECKER, Oliver
IPC分类号： F02D41/20 , F02D41/24
CPC分类号： F02D41/2096 , F02D41/2432 , F02D41/247 , F02D2041/2055
摘要： Method of determining an opening voltage of an injector (12) having a piezoelectric actuator (28), in particular of an injector (12) of an internal combustion engine, wherein an initial voltage (UA) is applied to the piezoelectric actuator (28) in the closed state of the injector (12) and the voltage (U) for opening the injector (12) is lowered by energizing the piezoelectric actuator (28). The energizing is interrupted at a holding voltage (UH1, UH2, UH3, … UHn) and after that the voltage change (ΔU) applied to the piezoelectric actuator (28) is measured over time, wherein, when voltage rises, it is recognized that the opening voltage (UOE) is reached.

4. 发明授权

EP2032832B1 KRAFTSTOFFEINSPRITZEINRICHTUNG FÜR EINE BRENNKRAFTMASCHINE 有权
标题翻译：燃料喷射装置，用于内燃发动机
公开(公告)号：EP2032832B1
公开(公告)日：2010-12-15
申请号：EP07728522.9
申请日：2007-04-25
申请人： Robert Bosch GmbH
发明人： KIEFERLE, Stefan , SOMMER, Dorothee , BECKER, Oliver , NOACK, Bjoern
IPC分类号： F02M37/00 , F02M37/08 , F02M59/20
CPC分类号： F02M59/205 , F02M37/0052
摘要： The fuel injection device for an internal combustion engine comprises a feed pump (10) which has an electric drive (14), by means of which feed pump (10) fuel is fed from a fuel storage tank (12) into a low-pressure region to the suction side of at least one high-pressure pump (20). By means of the high-pressure pump (20), fuel is fed into a high-pressure region (42) in which at least one injector (44) is provided, by means of which fuel is injected into the internal combustion engine. The fuel injection is controlled by means of an electric control device (46). Arranged in the low-pressure region is a pressure sensor (56) which is connected to the control device (46), and the electric drive (14) of the feed pump (10) is activated by the control device (46) in order to set a feed quantity of the feed pump (10) which is variable as a function of at least one operating parameter of the internal combustion engine and/or of the high-pressure pump (20). The drive (14) of the feed pump (10) is in particular activated by the control device (46) in such a way that, at a high load of the internal combustion engine and/or at a high rotational speed and/or at a high fuel temperature, a greater fuel quantity is fed by the feed pump (10) into the low-pressure region than at a low load and/or a low rotational speed and/or a low fuel temperature.

5. 发明公开

EP2032832A1 KRAFTSTOFFEINSPRITZEINRICHTUNG FÜR EINE BRENNKRAFTMASCHINE 有权
标题翻译： KRAFTSTOFFEINSPRITZEINRICHTUNGFÜREINE BRENNKRAFTMASCHINE
公开(公告)号：EP2032832A1
公开(公告)日：2009-03-11
申请号：EP07728522.9
申请日：2007-04-25
申请人： Robert Bosch GmbH
发明人： KIEFERLE, Stefan , SOMMER, Dorothee , BECKER, Oliver , NOACK, Bjoern
IPC分类号： F02M37/00 , F02M37/08 , F02M59/20
CPC分类号： F02M59/205 , F02M37/0052
摘要： The fuel injection device for an internal combustion engine comprises a feed pump (10) which has an electric drive (14), by means of which feed pump (10) fuel is fed from a fuel storage tank (12) into a low-pressure region to the suction side of at least one high-pressure pump (20). By means of the high-pressure pump (20), fuel is fed into a high-pressure region (42) in which at least one injector (44) is provided, by means of which fuel is injected into the internal combustion engine. The fuel injection is controlled by means of an electric control device (46). Arranged in the low-pressure region is a pressure sensor (56) which is connected to the control device (46), and the electric drive (14) of the feed pump (10) is activated by the control device (46) in order to set a feed quantity of the feed pump (10) which is variable as a function of at least one operating parameter of the internal combustion engine and/or of the high-pressure pump (20). The drive (14) of the feed pump (10) is in particular activated by the control device (46) in such a way that, at a high load of the internal combustion engine and/or at a high rotational speed and/or at a high fuel temperature, a greater fuel quantity is fed by the feed pump (10) into the low-pressure region than at a low load and/or a low rotational speed and/or a low fuel temperature.
摘要翻译：用于内燃机的燃料喷射装置包括具有电驱动装置（14）的供给泵（10），借助于该供给泵，燃料从燃料存储罐（12）供给到低压区域到至少一个高压泵（20）的吸入侧。借助于高压泵20，燃料被供给到其中设置有至少一个喷射器（44）的高压区域（42）中，通过该喷射器将燃料喷射到内燃机中。燃料喷射由电控装置（46）控制。在低压区域中布置有与控制装置（46）连接的压力传感器（56），并且供给泵（10）的电驱动器（14）由控制装置（46）依次启动以根据所述内燃机和/或所述高压泵（20）的至少一个运行参数设定可变的所述进料泵（10）的进给量。供给泵（10）的驱动装置（14）特别是由控制装置（46）以这样的方式启动，即，在内燃机的高负载下和/或在高转速下和/或在燃料温度高时，由进料泵（10）向低压区供应比在低负载和/或低转速和/或低燃料温度下更大的燃料量。

6. 发明授权

EP2265455B1 VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG VON LERNWERTEN FÜR DIE STEUERUNG EINER BRENNKRAFTMASCHINE 有权
标题翻译：方法和装置测定学习值的控制内燃发动机
公开(公告)号：EP2265455B1
公开(公告)日：2011-07-20
申请号：EP08873756.4
申请日：2008-12-05
申请人： Robert Bosch GmbH
发明人： BECKER, Oliver , WEISSER, Christoph
IPC分类号： B60K6/48 , B60W20/00 , B60W50/04 , F02D41/30 , B60W30/18 , B60W10/06 , B60W10/08
CPC分类号： B60W20/11 , B60K6/48 , B60W10/06 , B60W10/08 , B60W20/00 , B60W30/18072 , B60W2710/0616 , F02D41/2441 , F02D41/247 , Y02T10/54 , Y02T10/6221 , Y02T10/6286 , Y02T10/7258 , Y10T477/26
摘要： The invention relates to a method and a device for determining learned values for controlling an internal combustion engine (100). To this end, a second drive unit (120), particularly an electric motor, carries the internal combustion engine (100) in a particular operating state. The learned values are determined in said operating state.
摘要翻译：一种用于内燃发动机的控制确定学习值的方法，第二驱动单元，E. G.，电动机，拖动在特定操作状态下的内燃机，并且所述学习值在该运行状态确定。

7. 发明公开

EP2265455A1 VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG VON LERNWERTEN FÜR DIE STEUERUNG EINER BRENNKRAFTMASCHINE 有权
标题翻译：方法和装置测定学习值的控制内燃发动机
公开(公告)号：EP2265455A1
公开(公告)日：2010-12-29
申请号：EP08873756.4
申请日：2008-12-05
申请人： Robert Bosch GmbH
发明人： BECKER, Oliver , WEISSER, Christoph
IPC分类号： B60K6/48 , B60W20/00 , B60W50/04 , F02D41/30 , B60W30/18 , B60W10/06 , B60W10/08
CPC分类号： B60W20/11 , B60K6/48 , B60W10/06 , B60W10/08 , B60W20/00 , B60W30/18072 , B60W2710/0616 , F02D41/2441 , F02D41/247 , Y02T10/54 , Y02T10/6221 , Y02T10/6286 , Y02T10/7258 , Y10T477/26
摘要： The invention relates to a method and a device for determining learned values for controlling an internal combustion engine (100). To this end, a second drive unit (120), particularly an electric motor, carries the internal combustion engine (100) in a particular operating state. The learned values are determined in said operating state.

8. 发明公开

EP1805489A1 MESSEINRICHTUNG ZUR BESTIMMUNG DER ABGEGEBEN BRENNSTOFFMENGE IN EINEM EINSPRITZVENTIL 审中-公开
标题翻译：测量装置，用于确定输送的燃料量中的喷射阀
公开(公告)号：EP1805489A1
公开(公告)日：2007-07-11
申请号：EP05791834.4
申请日：2005-10-06
申请人： ROBERT BOSCH GMBH
发明人： BECKER, Thomas , VEIT, Guenter , PAUER, Thomas , LANDHAEUSSER, Felix , BUSCH, Roger , UHL, Marc , BECKER, Oliver
IPC分类号： G01F9/00 , G01F1/38 , F02M65/00 , F02M59/46 , F02M47/02
CPC分类号： F02M47/027 , F02D2200/0614 , F02M55/02 , F02M63/00 , F02M65/00
摘要： A measuring device (1) for at least indirectly determining the quantity of fuel delivered during the operation of a fuel injection valve (2) comprises a measuring plunger (42) and a detection device (65). The measuring plunger (42) can be placed in a fuel duct section (12) and displaced therein. The detection device (65) serves to detect a displacement of the measuring plunger (42) inside the fuel duct section (12) during the operation of the fuel injection valve (2) and determines a fuel quantity value according to the detected displacement of the measuring plunger (42). The fuel quantity value indicates, at least approximately, a quantity of fuel conveyed through the fuel duct section (12) by the displacement of the measuring plunger (42). The measuring plunger (42) is subjected to the action of a pressure spring (55) with a restoring force whereby being displaced up to a starting position, and comprises a through-opening (67, 68), which acts like a throttle and which permits a restoring movement of the measuring plunger (42) when fuel is flowing through.

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