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1. 发明公开

EP2786001A1 VERFAHREN UND VORRICHTUNG ZUM STEUERN EINER KRAFTSTOFFREGELERS 有权
标题翻译：方法和装置用于控制燃料CON LERS
公开(公告)号：EP2786001A1
公开(公告)日：2014-10-08
申请号：EP12794925.3
申请日：2012-11-23
申请人： Volkswagen Aktiengesellschaft
发明人： HAHN, Hermann
IPC分类号： F02D41/14
CPC分类号： F02D41/1483 , F02D41/1454 , F02D41/1489 , F02D2041/1422
摘要： The invention relates to a method for operating an internal combustion engine (10). According to the method, an exhaust gas produced by the internal combustion engine (10) is conducted across a 3-way catalytic converter (20) arranged in the exhaust duct (16). A lambda probe (26) detects a value characteristic of an exhaust-gas lambda number upstream of the 3-way catalytic converter (20), and transmits said value to an engine control unit (28) with an integrated regulator. By means of the regulator of the engine control unit (28), through the specification of a lambda setpoint value, a mean exhaust-gas lambda number (λ
m ) is set, and the mean exhaust-gas lambda number (λ
m ) is, with predefined periodic setpoint value variation, deflected alternately in the direction of a lean lambda number and a rich lambda number (lambda modulation). Upon the transition in the direction of the lean lambda number or upon the transition in the direction of the rich lambda number, at a time (t1) at which a probe signal of the lambda probe (26) reaches a predefined threshold value (λ
s ), a regulator deviation (ΔR) between a present regulator actual value (R1) and a present regulator setpoint value is formed, and a new regulator setpoint value (R2) is determined by adding two times the regulator deviation (ΔR) to the present regulator actual value (R1).

2. 发明授权

EP1272744B1 VORRICHTUNG UND VERFAHREN ZUR ERMITTLUNG EINER REGENERATIONSNOTWENDIGKEIT EINES NOx-SPEICHERKATALYSATORS 有权
标题翻译：装置和方法用于确定再生NO x存储催化剂需要
公开(公告)号：EP1272744B1
公开(公告)日：2006-08-16
申请号：EP01900434.0
申请日：2001-01-12
申请人： Volkswagen Aktiengesellschaft
发明人： HAHN, Hermann , HINZE, Sören , LINDLAU, Michael
IPC分类号： F01N3/08 , B01D53/04
CPC分类号： F01N3/0842 , B01D53/0454 , B01D53/9495 , F01N13/009 , F01N2550/03 , F01N2570/14 , F02D41/0055 , F02D41/0275 , F02D2200/0808 , F02M26/15 , Y02A50/2344
摘要： The invention relates to a device and method for determining the need for regeneration in a NOX storage catalyst (18) arranged in the exhaust train (12) of an at least periodically lean-operating internal combustion engine (10) for a motor vehicle. According to the invention, the need for regeneration is determined according to the engine power (P) of the internal combustion engine (10) and the remaining NOX storage capacity of the NOX storage catalyst.

3. 发明授权

EP1183453B1 VERFAHREN ZUR ENTSCHWEFELUNG VON WENIGSTENS EINEM IN EINEM ABGASKANAL EINER VERBRENNUNGSKRAFTMASCHINE ANGEORDNETEN NOx-SPEICHERKATALYSATOR 有权
标题翻译：工艺为至少一个内燃发动机的气体通路的脱硫ARRANGED NO X储存催化剂
公开(公告)号：EP1183453B1
公开(公告)日：2004-04-28
申请号：EP00931209.1
申请日：2000-05-13
申请人： Volkswagen Aktiengesellschaft
发明人： POTT, Ekkehard , GOTTSCHLING, Martina , HELD, Wolfgang , HAHN, Hermann
IPC分类号： F02D41/14
CPC分类号： F01N3/0842 , F01N3/0814 , F01N13/009 , F01N2570/04 , F01N2570/14 , F02D41/028 , F02D41/0295 , F02D41/1408 , F02M26/15 , Y02A50/2344

4. 发明授权

EP1102922B1 REGELUNG EINES NOx-SPEICHER-KATALYSATORS 有权
标题翻译：调控的氮氧化物储存催化剂
公开(公告)号：EP1102922B1
公开(公告)日：2003-03-19
申请号：EP99936519.0
申请日：1999-07-13
申请人： Volkswagen Aktiengesellschaft
发明人： HAHN, Hermann
IPC分类号： F01N11/00 , F01N3/20
CPC分类号： F01N3/0842 , B01D53/9495 , F02D41/0275 , F02D41/1402 , F02D41/146 , F02D41/1463 , F02D2200/0804 , F02D2200/0806
摘要： The invention relates to a method for regulating a NOx absorption catalytic converter of an internal combustion engine, comprising a NOx-sensitive measuring device which is positioned downstream of the catalytic converter in the direction of exhaust-gas flow and a control unit. According to said method the NOx-sensitive measuring device determines the NOx concentration of the exhaust gas, the quantity of NOx stored in the catalyst during lean-mixture operations is integrated by means of the NOx concentration signal and lean-mixture operation of the internal combustion engine is terminated when the NOx quantity stored reaches a defined limit value. The invention also relates to a method for regulating a NOx absorption catalytic converter of an internal combustion engine permitting at least temporary lean-mixture operations. According to said method lean-mixture operation is triggered in accordance with catalytic converter temperature, in that lean-mixture operation is terminated when the temperature of the catalytic converter is lower than a defined minimum temperature or higher than defined maximum temperature. The minimum and maximum catalytic converter temperature is modified in accordance with the duration of the lean-mixture or regeneration intervals so as to permit optimal use of the NOx absorption capacity.

5. 发明公开

EP1254307A1 VERFAHREN UND VORRICHTUNG ZUR ERMITTLUNG EINER NOx-SPEICHERKAPAZITÄT EINES NOx-SPEICHERKATALYSATORS 有权
标题翻译：方法和设备，用来确定NOx存储催化剂的NOx存储能力
公开(公告)号：EP1254307A1
公开(公告)日：2002-11-06
申请号：EP01901166.7
申请日：2001-01-18
申请人： Volkswagen Aktiengesellschaft
发明人： HAHN, Hermann , HINZE, Sören , LANG, Axel
IPC分类号： F01N11/00 , F02D41/02
CPC分类号： F01N9/005 , B01D53/9495 , F01N3/0842 , F01N11/00 , F01N2550/03 , F01N2560/026 , F01N2570/04 , F02D41/028 , F02D41/1462 , F02D41/1463 , F02D41/1465 , F02D2200/0808 , Y02T10/24 , Y02T10/47
摘要： The invention relates to a method for detecting a NOx storage capacity of a NOx storage catalyst by means of a NOx-sensitive measuring device which is arranged downstream in relation to the NOx storage catalyst that is arranged in an exhaust gas channel of a combustion engine. According to the invention, an NOx concentration which is measured downstream in relation to the NOx-storage catalyst (16) is integrated. At least one real characteristic that characterises the NOx storage capacity of the NOx storage catalyst (16) is thus calculated and compared with at least one corresponding characteristic (desired characteristic) that is designed for a sulphur-free and undamaged NOx storage catalyst. The invention also relates to a device for carrying out the method.

6. 发明公开

EP1252419A1 VERFAHREN UND VORRICHTUNG ZUR STEUERUNG EINER ENTSCHWEFELUNG EINES IN EINEM ABGASKANAL EINER VERBRENNUNGSKRAFTMASCHINE ANGEORDNETEN NOX-SPEICHERKATALYSATORS 有权
标题翻译：方法和一种控制气体的脱硫内燃发动机ARRANGED NOx存储催化剂的CHANNEL
公开(公告)号：EP1252419A1
公开(公告)日：2002-10-30
申请号：EP01902302.7
申请日：2001-01-11
申请人： Volkswagen Aktiengesellschaft
发明人： POTT, Ekkehard , HAHN, Hermann , HINZE, Sören , ZILLMER, Michael , LANG, Axel , SCHULZE, Frank , DRÜCKHAMMER, Jens
IPC分类号： F01N3/08
CPC分类号： F01N3/0842 , F01N3/0885 , F01N2570/04 , F02D41/0235 , F02D41/028 , F02D41/146 , F02D41/1463 , F02D2200/0811
摘要： The invention relates to a method and a device for the control of a desulphurisation of an NOX storage catalyst, arranged in an exhaust system of an internal combustion engine, with at least one NOx probe arranged downstream of the NOx storage catalyst, which produces a signal dependent upon the concentration of NOx present in the exhaust gas. An NOx activity for the NOx storage catalyst (18) is determined, from the value of the NOx concentration measured downstream from the NOx storage catalyst (18). Should the NOx activity (NOA) for the NOx storage catalyst (18) fall below a preset threshold value (SW), a desulphurisation with preset desulphurisation parameters is initiated. An irreversible deterioration of the NOx storage catalyst (18) is determined by means of the desulphurisation success and, if a preset threshold value for deterioration is exceeded (SWIR), a hard desulphurisation is initiated, whereby at least one desulphurisation parameter corresponding to an elevated desulphurisation efficiency is selected. The further operating parameters of the internal combustion engine (10) are made dependent upon the NOx initial activity (NOAMX) achieved after the hard desulphurisation.

7. 发明公开

EP1187670A1 KALIBRIERUNG EINES NOX-SENSORS UND REGELUNG EINES VORGESCHALTETEN NOX-SPEICHERKATALYSTATORS 有权
标题翻译：校准的NOx传感器和调节中上游侧NOx储存催化剂
公开(公告)号：EP1187670A1
公开(公告)日：2002-03-20
申请号：EP00943741.9
申请日：2000-05-26
申请人： Volkswagen Aktiengesellschaft
发明人： HAHN, Hermann , HINZE, Sören
IPC分类号： B01D53/94 , F01N11/00 , F02D41/02 , G01N27/417
CPC分类号： F01N3/0842 , F01N11/00 , F01N2550/03 , F01N2560/026 , F02D41/0275 , F02D41/1463 , F02D41/2441 , F02D41/2474 , G01N27/4175 , G01N33/0006 , G01N33/0037 , Y02A50/245 , Y02T10/47
摘要： The invention relates to a method of determining the NOx concentration of a flow of exhaust gases of an internal combustion engine by means of an NOx sensor that has been calibrated by selected operating points. Said NOx sensor is located down-stream of an NOx storage catalyst and the point of reference used to calibrate the sensor is the minimum of the sensor signal curve after the regenerative phase. Said minimum (min) is also used as a zero point for controlling the regulation of the NOx storage catalyst.

8. 发明公开

EP1161618A1 VERFAHREN ZUR DE-SULFATIERUNG EINES NOX-SPEICHERKATALYSATORS 有权
标题翻译：方法DE-硫酸NOx存储催化剂
公开(公告)号：EP1161618A1
公开(公告)日：2001-12-12
申请号：EP00918749.3
申请日：2000-02-28
申请人： Volkswagen Aktiengesellschaft
发明人： POTT, Ekkehard , HAHN, Hermann
IPC分类号： F01N3/08 , F02D41/02
CPC分类号： F01N3/0842 , B01D53/9431 , B01D53/9495 , F01N13/009 , F01N2570/04 , F02D41/024 , F02D41/028 , F02D41/1454 , F02D41/405 , F02D2200/021 , F02D2200/0802 , F02D2200/0818 , F02M26/13 , Y02T10/26 , Y02T10/44
摘要： The invention relates to a method of desulfating an NOx storage catalyst that is mounted downstream of a lean-mix internal combustion engine. The charge condition of the catalyst is determined by means of sulfur and is compared with a predetermined maximally permissible sulfur charge. If said value is exceeded, the method provides for a check of the safety-relevant components for their proper functioning and the actual drive conditions for observance of predetermined drive parameters in order to decide whether a desulfation is permissible. It is also checked whether it is possible to carry out a desulfation by observing predetermined desulfation parameters. If such a desulfation is permissible, the required desulfation parameters are adjusted and a desulfation process is initiated which lasts until either a predetermined desulfation degree is reached or the actual results of the permissibility check require a premature termination or disruption of the desulfation. In addition to this procedure, the exhaust gases are monitored in order to detect any irregularities in the catalyst performance. If the emission values are impermissibly high, desulfation is advanced to remove potential sulfur-related damages. If the emission values are exceptionally low, a possibly required desulfation is specifically suppressed until certain maximally permissible emission values are reached.

9. 发明授权

EP1926898B1 LAMBDAREGELUNG MIT SAUERSTOFFMENGENBILANZIERUNG 有权转让
标题翻译：带氧量会计LAMBDA控制
公开(公告)号：EP1926898B1
公开(公告)日：2016-04-13
申请号：EP06805657.1
申请日：2006-09-06
申请人： Volkswagen Aktiengesellschaft
发明人： HAHN, Hermann
IPC分类号： F02D41/02 , F02D41/14
CPC分类号： F01N11/007 , F01N2900/0422 , F02D41/0295 , F02D41/1402 , F02D41/1441 , F02D2041/1419 , F02D2041/1422 , F02D2200/0814 , Y02T10/47

10. 发明授权

EP1187670B1 KALIBRIERUNG EINES NOx-SENSORS UND REGELUNG EINES VORGESCHALTETEN NOx-SPEICHERKATALYSATORS 有权
标题翻译：校准的NOx传感器和调节中上游侧NOx储存催化剂
公开(公告)号：EP1187670B1
公开(公告)日：2007-12-19
申请号：EP00943741.9
申请日：2000-05-26
申请人： Volkswagen Aktiengesellschaft
发明人： HAHN, Hermann , HINZE, Sören
IPC分类号： B01D53/94 , F01N11/00 , F02D41/02 , G01N27/417
CPC分类号： F01N3/0842 , F01N11/00 , F01N2550/03 , F01N2560/026 , F02D41/0275 , F02D41/1463 , F02D41/2441 , F02D41/2474 , G01N27/4175 , G01N33/0006 , G01N33/0037 , Y02A50/245 , Y02T10/47
摘要： The invention relates to a method of determining the NOx concentration of a flow of exhaust gases of an internal combustion engine by means of an NOx sensor that has been calibrated by selected operating points. Said NOx sensor is located down-stream of an NOx storage catalyst and the point of reference used to calibrate the sensor is the minimum of the sensor signal curve after the regenerative phase. Said minimum (min) is also used as a zero point for controlling the regulation of the NOx storage catalyst.

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