WO1996035048A1 - Process for the selective lambda control of a cylinder in a multi-cylinder internal combustion engine - Google Patents
Process for the selective lambda control of a cylinder in a multi-cylinder internal combustion engine Download PDFInfo
- Publication number
- WO1996035048A1 WO1996035048A1 PCT/DE1996/000760 DE9600760W WO9635048A1 WO 1996035048 A1 WO1996035048 A1 WO 1996035048A1 DE 9600760 W DE9600760 W DE 9600760W WO 9635048 A1 WO9635048 A1 WO 9635048A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lam
- lambda
- cylinder
- controller
- value
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/008—Controlling each cylinder individually
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1439—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the position of the sensor
- F02D41/1441—Plural sensors
- F02D41/1443—Plural sensors with one sensor per cylinder or group of cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1418—Several control loops, either as alternatives or simultaneous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/008—Controlling each cylinder individually
- F02D41/0082—Controlling each cylinder individually per groups or banks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
- F02D41/1456—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio with sensor output signal being linear or quasi-linear with the concentration of oxygen
Definitions
- the invention relates to a method for cylinder-selective lambda control of a multi-cylinder internal combustion engine according to the preamble of patent claim 1.
- the lambda control is the most effective exhaust gas purification method for internal combustion engines today.
- lambda probes So-called jump probes are used as lambda probes, the output signal of which changes abruptly both in the transition from a rich to a lean exhaust gas state and in the transition from a lean to a rich exhaust gas state.
- Such lambda probes based on zirconium oxide or titanium oxide have response times of approximately 100 ms and therefore only detect the oxygen content in the total exhaust gas, which is composed of the individual exhaust gas packs of the individual cylinders of the internal combustion engine.
- variable suction systems switching suction pipes
- variable valve timing makes it difficult to achieve a balanced cylinder charge in all operating points of the internal combustion engine using conventional means.
- the oxygen sensors for cylinder-specific mixture control are also referred to as linear lambda probes and are constructed, for example, on the basis of strontium titanate (SrTi03) in thin-film technology (VDI reports 939, Düsseldorf 1992, “Comparison of the Response Speed of Vehicle Exhaust Gas Sensors for Fast Lambda Measurement on the Basis” of selected metal oxide thin films ").
- the present invention is based on the object of specifying a method for the cylinder-selective lambda control of a multi-cylinder internal combustion engine of the type mentioned at the outset, so that at all operating points of the internal combustion engine The deviation of the individual cylinder air numbers from the target value seems to be limited to a minimum.
- the single-cylinder lambda control consists of two control loops, an outer control loop for regulating the global mean lambda value and an inner control loop in which the air ratio is controlled in a cylinder-selective manner.
- a linear proportional integral controller (PI controller) is used to regulate the mean air ratio.
- the controlled system can be simulated with sufficient accuracy by a dead time element and two first-order delay elements.
- a controller structure can be designed, the parameters of which depend on the dead time of the lambda control loop, the time constants of the delay elements and the speed. Since these system variables can be easily determined by measurements, the effort for the application of the lambda controller can be significantly reduced.
- the slope of the oxygen probe signal is evaluated after the push-out cycle has elapsed.
- a positive gradient means that the air ratio in the current exhaust cycle is leaner than the air ratio in the previous cycle, a negative gradient in the current exhaust cycle indicates a richer exhaust gas packet. Since this represents qualitative information about the state of the air ratio of the single-cylinder exhaust gas, the single-cylinder lambda controller can be implemented as a two-point controller.
- a PI controller is also used as the controller for the single-cylinder air figures, in which the proportional and integral components are set as a function of the load and the speed.
- the air ratio amplitude in the total exhaust gas is significantly reduced in comparison to that of a conventional two-point lambda regulator and the conversion rate for CO and NO x of an aged catalyst is significantly increased.
- the detection and evaluation of the individual-cylinder air numbers enables the detection of defects in the injection valves, which are associated with a change in the dynamic properties of the flow rate, as a result of which the on-board diagnosis (OBD II) is supported.
- FIG. 1 shows a block diagram of a device for cylinder-selective lambda control of an internal combustion engine
- FIG. 2 shows the relationship between probe voltage and air ratio of a linear lambda probe
- FIG. 3 shows the position of the sampling points for the probe voltage in relation to the push-out cycles of the individual cylinders
- FIG. 4 shows a graphical representation of a hysteresis for determining air gradient
- FIG. 5 shows a flow chart for determining state variables which indicate whether the exhaust gas of a cylinder is too rich or too lean.
- reference number 10 denotes an internal combustion engine BKM, shown only schematically, with 6 cylinders, 3 cylinders in each case being combined to form a cylinder bank.
- the cylinders 1, 2, 3 are assigned to a first cylinder bank ZB1, the exhaust gas of which opens into a common exhaust line AST1.
- the cylinders 4,5,6 are a second cylinder Linderbank ZB2 assigned to which an exhaust line AST2 is common.
- a linear lambda sensor LSI is provided in the exhaust line AST1 of the internal combustion engine 10, and a linear lambda sensor LS2 is provided in the exhaust line AST2. Positioning the two lambda probes LSI, LS2 near the internal combustion engine 10 favors the detectability of individual cylinder air number deviations, since the distance between the installation location of the lambda probes LSI, LS2 and the
- Internal combustion engine 10 increases the degree of mixing of the individual exhaust gas packets and thereby makes cylinder-selective detection difficult.
- the signals of the two lambda probes LSI, LS2 are fed to a circuit block 11 which controls the signal detection and linearization of these signals.
- a cylinder identification signal ZID and a time signal, namely the waiting time TEZ are present on circuit block 11 as further input variables.
- the value for the waiting time TEZ is read out from a characteristic map KF depending on a variable that represents the engine load, for example the air mass LM and the rotational speed N.
- FIG. 2 shows the dependence of the probe voltage of a linear lambda probe on the air ratio ⁇ .
- the characteristic curve shows a saturation behavior in the rich and lean air ratio range.
- the probe voltage is converted into an actual lambda value LAM_IST using a stored characteristic curve or a one-dimensional characteristic map.
- a separate characteristic diagram can be provided for each of the two lambda probes, with the aid of which the values of the sensor voltages are converted into air ratio values.
- the top dead center ignition (ZOT) of the individual cylinders is used as a reference for the timing of the samples.
- reference marks e.g. Teeth evaluated on a sensor wheel assigned to the crankshaft or camshaft (e.g. tooth 15: ZOT cylinder 5, tooth 35: ZOT cylinder 3, tooth 55: ZOT cylinder 6, tooth 75: ZOT cylinder 2, tooth 95: ZOT cylinder 4, Tooth 115: ZOT Zylin ⁇ der 1).
- FIG. 3 shows in the first two lines the position of the sampling points AP for the sensor signals of the two cylinder banks ZB1, ZB2 in relation to the push-out cycles AT of the individual cylinders.
- the push-out strokes AT of the cylinders 4, 5 and 6 of the cylinder bank ZB 2 are shown
- the push-out strokes AT of the cylinders 1, 2 and 3 of the cylinder bank ZB 1 are shown.
- a cylinder identification signal ZID is shown in the last line of FIG. 3, on which the respective top dead center ignition (ZOT) of cylinders 1 to 6 are marked.
- the value of the probe signal which contains the information about the air ratio of a cylinder, is only recorded after a certain waiting time TEZ has elapsed after the exhaust valve has closed (the exhaust stroke has ended).
- This waiting time TEZ depends on the load and the speed of the internal combustion engine.
- the waiting time TEZ is stored in a map which is spanned over the air mass LM and the speed N.
- the time interval between the signal acquisition is therefore predefined in relation to a trigger mark (tooth number) fixed to the crankshaft, depending on the load and the speed.
- a lambda voltage value per cylinder bank is determined for each segment.
- a proportional integral controller (PI controller) with the proportional component LAM_P and the integration component LAM_I serves as the global lambda controller for controlling the total exhaust gas
- circuit block 14 in FIG. 1 Depending on the lambda mean value LAMMW_IST and the target value LAM_SOLL, these controller components are calculated.
- the setpoint LAM_SOLL is stored in a map as a function of the load, for example the air mass LM and the speed N of the internal combustion engine.
- n number of the measured value
- LAM_SUM_i (n) LAM_SUM_i (n-1) - LAM_IST_i (n-6) + LAM_IST_i (n)
- LAMMW_i (n) LAM_SUM_i (n) / 6
- the input variable for the global lambda controller is the control deviation LAM_DIF_i (n), which is defined as the difference between the setpoint value LAM_SOLL (n) taken from the map mentioned above and the average lambda value LAMMW_IST (n):
- LAM_DIF_i (n) LAM_SOLL (n) - LAMMW_IST_i (n)
- La bda controller components LAM_P_i and LAM_I_i of the global lambda controller are calculated as follows:
- LAM_P_i (n) LAM_KPI_FAK (n) * P_FAK_LAM_GR * (T_LS + TN) * LAM_DIF_i (n)
- LAM_I_i (n) LAM_I_i (n-l) + LAM_KPI_FAK (n) * I_FAK_LAM_GR * 2
- LAM_KPI_FAK control gain factor (e.g..0-2)
- P_FAK_LAM_GR applicable constant (e.g..0-2)
- I_FAK_LAM_GR applicable constant (e.g..0-2)
- T_LS applicable time constant (e.g..0- 0.043) [sec]
- TN segment duration [sec]
- the control gain factor LAM_KPI_FAK is selected as a function of a dead time LAM_TOTZ_GR in the lambda control loop, which is composed of the duration of the fuel storage, the duration of the intake, compression, work and push-out cycle as well as the gas running time for the respective lambda probe.
- This dead time LAM_TOTZ_GR is taken from a map depending on the load and speed.
- the influence of the global lambda controller results from the sum of the controller components LAM_P_i and LAM_I_i:
- LAM_GR_i (n) LAM_P_i (n) + LAM_I_i (n)
- This controller output of the global lambda controller is preferably limited to ⁇ 25% of the basic injection time, i.e. -0.25 ⁇ LAM_GR_i ⁇ 0.25.
- the integral component can also be limited to ⁇ 25% of the basic injection time, i.e. -0.25 ⁇ LAM_I_i ⁇ 0.25.
- a gradient method is used to identify the individual cylinder air numbers.
- a qualitative assessment of the individual cylinder air numbers is carried out from the gradient behavior of the lambda probe signal after the push-out cycle has elapsed, i.e. it is determined whether the exhaust gas of the current cycle is richer or leaner than that exhaust gas of the previous cycle.
- circuit block 13 (FIG. 1) in the following way:
- the air ratio gradients are calculated segment-synchronously cylinder-selectively from the actual lambda values LAM_IST_i, only every second measured value per cylinder bank being taken into account for the gradient calculation.
- LAM_GRD_ZYL_X LAM_IST_i (n) - LAM_IST_i (n-2) (1)
- a hysteresis LAM_ZST_HYS the width of which can be applied, is introduced to suppress interference, which can lead to incorrect detections, particularly in the case of small air gradient.
- step S5 If the query in step S1 yields a negative result, it is checked in step S5 whether the value of the air ratio gradient LAM_GRD_ZYL_x is less than the hysteresis value.
- LAM_ZST_i are used to control the individual cylinder air numbers. They serve as input variables for a single-cylinder lambda controller (circuit block 15 in FIG. 1) which is designed as a proportional-integral controller (PI controller).
- PI controller proportional-integral controller
- circuit blocks 11-15 in FIG. 1 are preferably integrated in an electronic control device 16 known per se, as is used in modern motor vehicles for controlling and regulating a wide variety of operating parameters such as injection time calculation, ignition control, diagnosis, etc. in any case. Also those mentioned in the description Characteristic maps are stored in memories of the control device 16.
- LAM_P_EZ_x (n) -LAM_P_EZ (n)
- LAM_I_EZ_x (n) LAM__I_EZ_x (n-1) - LAM_I_EZ (n)
- LAM_ZST_i 1 (exhaust gas from a cylinder is too lean)
- LAM_P_EZ_x (n) LAM_P_EZ (n)
- LAM_I_EZ_x (n) LAM_I_EZ_x (n-l) + LAM_I_EZ (n)
- LAM_I_SUM_EZ_i (n + l) LAM_I_SUM_EZ_I (n) - LAM_I_EZ_i (n-2)
- LAM_I_EZ_x (n) is entered in a memory LAM_I_EZ_i.
- LAMMW_I_EZ_i (n + l) LAM_I_SUM_EZ_i (n + 1) / 3
- LAM_P_EZ and LAM_I_EZ are each stored in a map, which are spanned over the load size LM and the speed N of the internal combustion engine.
- the integration component LAM_I_EZ_x of the single-cylinder lambda controller is limited, for example, to ⁇ 10% of the basic injection time TI_B, i.e. -0.1 ⁇ LAM_I_EZ_x ⁇ 0.1.
- TI_x TI_B * (1 + TI_LAM_x) with
- the invention was explained on the basis of an exemplary embodiment in which the internal combustion engine has 6 cylinders and in each case 3 cylinders are combined to form a group (cylinder bank ZB1, ZB2). Each group or cylinder bank is assigned an exhaust line containing a linear lambda probe.
- the number of exhaust gas lines and thus the number of linear lambda probes are then determined in accordance with the number of groups.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59603569T DE59603569D1 (en) | 1995-05-03 | 1996-05-02 | METHOD FOR CYLINDLE SELECTIVE LAMBDA CONTROL OF A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE |
EP96913453A EP0826100B1 (en) | 1995-05-03 | 1996-05-02 | Process for the selective lambda control of a cylinder in a multi-cylinder internal combustion engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19516209 | 1995-05-03 | ||
DE19516209.9 | 1995-05-03 |
Publications (1)
Publication Number | Publication Date |
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WO1996035048A1 true WO1996035048A1 (en) | 1996-11-07 |
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ID=7760963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/DE1996/000760 WO1996035048A1 (en) | 1995-05-03 | 1996-05-02 | Process for the selective lambda control of a cylinder in a multi-cylinder internal combustion engine |
Country Status (3)
Country | Link |
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EP (1) | EP0826100B1 (en) |
DE (1) | DE59603569D1 (en) |
WO (1) | WO1996035048A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10338775A1 (en) * | 2003-08-23 | 2005-03-17 | Adam Opel Ag | Diagnostic device for internal combustion engine checks control value at control value input for each cylinder to determine whether it is smaller than lower permissible threshold value or greater than higher permissible threshold value |
DE102004026176B3 (en) * | 2004-05-28 | 2005-08-25 | Siemens Ag | Air fuel ratio recording method e.g. for individual cylinders of combustion engines, involves determining scanning crankshaft angle related to reference position of piston of respective cylinders and recording measuring signal |
DE102005009101B3 (en) * | 2005-02-28 | 2006-03-09 | Siemens Ag | Correction value determining method for internal combustion engine, involves determining correction value for controlling air/fuel-ratio based on adaptation values and temperatures of respective injection valves |
DE102006020349A1 (en) * | 2006-04-28 | 2007-10-31 | Mahle International Gmbh | Piston engine and associated operating method |
DE102006026390A1 (en) * | 2006-06-07 | 2007-12-13 | Bayerische Motoren Werke Ag | Electronic control device for controlling the internal combustion engine in a motor vehicle |
WO2008009499A1 (en) * | 2006-07-21 | 2008-01-24 | Continental Automotive Gmbh | Method and device for the diagnosis of the cylinder-selective uneven distribution of a fuel-air mixture fed to the cylinders of an internal combustion engine |
DE102006044073A1 (en) * | 2006-09-20 | 2008-03-27 | Bayerische Motoren Werke Ag | Use of an electronic control device for controlling the internal combustion engine in a motor vehicle |
WO2010057738A1 (en) * | 2008-11-19 | 2010-05-27 | Continental Automotive Gmbh | Device for operating an internal combustion engine |
DE10057013B4 (en) * | 1999-11-18 | 2011-02-24 | DENSO CORPORATION, Kariya-shi | Air / fuel ratio control system for an internal combustion engine |
WO2012152662A1 (en) * | 2011-05-11 | 2012-11-15 | Jaguar Cars Ltd. | Engine diagnostic with exhaust gas sampling delay |
DE102011084630A1 (en) | 2011-10-17 | 2013-04-18 | Robert Bosch Gmbh | Method for operating an internal combustion engine and arithmetic unit |
DE102011084635A1 (en) | 2011-10-17 | 2013-04-18 | Robert Bosch Gmbh | Method for operating an internal combustion engine and arithmetic unit |
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US4766870A (en) * | 1986-04-30 | 1988-08-30 | Honda Giken Kogyo Kabushiki Kaisha | Method of air/fuel ratio control for internal combustion engine |
FR2624965A1 (en) * | 1987-12-21 | 1989-06-23 | Bosch Gmbh Robert | OPERATING DEVICE FOR THE MEASURING SIGNAL OF A LAMBDA PROBE, DISPOSABLE IN THE EXHAUST GASES OF AN INTERNAL COMBUSTION ENGINE, FREE OF DISTURBANCE |
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-
1996
- 1996-05-02 DE DE59603569T patent/DE59603569D1/en not_active Expired - Lifetime
- 1996-05-02 EP EP96913453A patent/EP0826100B1/en not_active Expired - Lifetime
- 1996-05-02 WO PCT/DE1996/000760 patent/WO1996035048A1/en active IP Right Grant
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EP0236207A1 (en) * | 1986-02-25 | 1987-09-09 | Regie Nationale Des Usines Renault | Electronic-injection method and system using lambda sensor regulation for an internal-combustion engine |
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Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10057013B4 (en) * | 1999-11-18 | 2011-02-24 | DENSO CORPORATION, Kariya-shi | Air / fuel ratio control system for an internal combustion engine |
DE10338775B4 (en) * | 2003-08-23 | 2010-12-30 | GM Global Technology Operations, Inc., Detroit | Diagnostic device for an internal combustion engine |
DE10338775A1 (en) * | 2003-08-23 | 2005-03-17 | Adam Opel Ag | Diagnostic device for internal combustion engine checks control value at control value input for each cylinder to determine whether it is smaller than lower permissible threshold value or greater than higher permissible threshold value |
US7562653B2 (en) | 2004-05-28 | 2009-07-21 | Siemens Aktiengesellschaft | Method for detecting a cylinder-specific air/fuel ratio in an internal combustion engine |
DE102004026176B3 (en) * | 2004-05-28 | 2005-08-25 | Siemens Ag | Air fuel ratio recording method e.g. for individual cylinders of combustion engines, involves determining scanning crankshaft angle related to reference position of piston of respective cylinders and recording measuring signal |
DE102005009101B3 (en) * | 2005-02-28 | 2006-03-09 | Siemens Ag | Correction value determining method for internal combustion engine, involves determining correction value for controlling air/fuel-ratio based on adaptation values and temperatures of respective injection valves |
US7676317B2 (en) | 2005-02-28 | 2010-03-09 | Continental Automotive Gmbh | Method and device for determining a corrective value used for influencing an air/fuel ratio |
DE102006020349A1 (en) * | 2006-04-28 | 2007-10-31 | Mahle International Gmbh | Piston engine and associated operating method |
US7387116B2 (en) | 2006-04-28 | 2008-06-17 | Mahle International Gmbh | Piston engine and respective operating method |
DE102006026390B4 (en) * | 2006-06-07 | 2017-04-27 | Bayerische Motoren Werke Aktiengesellschaft | Electronic control device for controlling the internal combustion engine in a motor vehicle |
US7703437B2 (en) | 2006-06-07 | 2010-04-27 | Bayerische Motoren Werke Aktiengesellschaft | Electronic control device for controlling the internal combustion engine in a motor vehicle |
DE102006026390A1 (en) * | 2006-06-07 | 2007-12-13 | Bayerische Motoren Werke Ag | Electronic control device for controlling the internal combustion engine in a motor vehicle |
US8103430B2 (en) | 2006-07-21 | 2012-01-24 | Continental Automotive Gmbh | Method and device for the diagnosis of the cylinder-selective uneven distribution of a fuel-air mixture fed to the cylinders of an internal combustion engine |
WO2008009499A1 (en) * | 2006-07-21 | 2008-01-24 | Continental Automotive Gmbh | Method and device for the diagnosis of the cylinder-selective uneven distribution of a fuel-air mixture fed to the cylinders of an internal combustion engine |
US7836870B2 (en) | 2006-09-20 | 2010-11-23 | Bayerische Motoren Werke Aktiengesellschaft | Method for controlling an internal combustion engine of a motor vehicle |
DE102006044073B4 (en) * | 2006-09-20 | 2017-02-23 | Bayerische Motoren Werke Aktiengesellschaft | Use of an electronic control device for controlling the internal combustion engine in a motor vehicle |
DE102006044073A1 (en) * | 2006-09-20 | 2008-03-27 | Bayerische Motoren Werke Ag | Use of an electronic control device for controlling the internal combustion engine in a motor vehicle |
WO2010057738A1 (en) * | 2008-11-19 | 2010-05-27 | Continental Automotive Gmbh | Device for operating an internal combustion engine |
US8347700B2 (en) | 2008-11-19 | 2013-01-08 | Continental Automotive Gmbh | Device for operating an internal combustion engine |
WO2012152662A1 (en) * | 2011-05-11 | 2012-11-15 | Jaguar Cars Ltd. | Engine diagnostic with exhaust gas sampling delay |
DE102011084630A1 (en) | 2011-10-17 | 2013-04-18 | Robert Bosch Gmbh | Method for operating an internal combustion engine and arithmetic unit |
DE102011084635A1 (en) | 2011-10-17 | 2013-04-18 | Robert Bosch Gmbh | Method for operating an internal combustion engine and arithmetic unit |
WO2013056945A1 (en) | 2011-10-17 | 2013-04-25 | Robert Bosch Gmbh | Method and device for operating an internal combustion engine |
WO2013056944A1 (en) | 2011-10-17 | 2013-04-25 | Robert Bosch Gmbh | Method for controlling an internal combustion engine |
DE102011084630B4 (en) | 2011-10-17 | 2023-12-14 | Robert Bosch Gmbh | Method for operating an internal combustion engine and computing unit |
Also Published As
Publication number | Publication date |
---|---|
EP0826100B1 (en) | 1999-11-03 |
DE59603569D1 (en) | 1999-12-09 |
EP0826100A1 (en) | 1998-03-04 |
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