| Patent Number |
Title Of Patent |
Date Issued |
| 7415345 |
Method for operating an internal combustion engine |
August 19, 2008 |
| In operation of an internal combustion engine, an air filling (rl) in a combustion chamber is ascertained, taking into account a pressure (ps) in an intake conduit. It is proposed that the air filling (rl) be ascertained on the basis of a model (A), which as its input variables recei |
| 7287377 |
Method and device for operating an internal combustion engine |
October 30, 2007 |
| A method and a device for operating an internal combustion engine make it possible from the start to avoid operating states that are characterized by an increased knock tendency or an increased exhaust gas temperature. The internal combustion engine includes a compressor in an air feed o |
| 7188605 |
Method and device for operating an internal combustion engine |
March 13, 2007 |
| A method and a device for operating an internal combustion engine are provided, which allow a continuous limiting of the output of the internal combustion engine upon attaining a maximally possible injection duration of an injection valve. The internal combustion engine has at least one |
| 7146268 |
Method and device for operating an internal combustion engine having exhaust-gas recirculation |
December 5, 2006 |
| A method and a device for operating an internal combustion engine having exhaust-gas recirculation are provided, which make it possible to dispense with an ambient-pressure sensor. In this context, an intake-manifold pressure and an ambient pressure are modeled. The intake-manifold p |
| 7143726 |
Method and device for controlling the opening of an intake valve of an internal combustion engin |
December 5, 2006 |
| A method for controlling the opening of at least one intake valve of a combustion chamber in a periodically working piston engine, at least one intake valve of the combustion chamber being opened during a first partial period of a working period of the piston engine for charging the |
| 6983597 |
Method and arrangement for controlling an internal combustion engine |
January 10, 2006 |
| The invention is directed to a method and an arrangement for controlling an internal combustion engine (1) having a compressor (5) for compressing the air drawn in by suction by the engine (1). The compressor is especially an exhaust-gas turbocharger. With the method and arrangement, |
| 6959254 |
Method and device for controlling and/or diagnosing a control system that influences a mass flow |
October 25, 2005 |
| A method and a device are proposed for controlling and/or diagnosing a control system influencing a mass flow. In this context, a correction value is calculated, which corrects the controlling, or is evaluated for diagnostic purposes. The correction value, in this context, is derived |
| 6909961 |
Method and device for measuring a temperature variable in a mass flow pipe |
June 21, 2005 |
| A method and an arrangement are suggested for determining a temperature quantity in a mass flow line which includes a throttle position and to which an additional gas mass flow is supplied after the throttle position. The temperature ahead of the throttle position is determined on the ba |
| 6898511 |
Method and device for monitoring a pressure sensor |
May 24, 2005 |
| A method and an arrangement for monitoring a pressure sensor are suggested which determines a value representing the ambient pressure of an internal combustion engine. Furthermore, an index for the extent of the correction of the mixture composition via the mixture control system is dete |
| 6871918 |
Method for the reliable operation of a brake booster system, brake booster system, and circuit t |
March 29, 2005 |
| A method and system for ensuring reliable operation of a brake booster system for a vehicle braking system in which a pressure value prevailing in the brake pressure reservoir of the brake booster system is sensed by a pressure sensor. An error occurring in the brake booster system is |
| 6786197 |
Method and device for controlling the drive unit of a vehicle |
September 7, 2004 |
| A method and a device for controlling the drive unit of a vehicle are provided, in which, in addition to the selection variable for an output variable of the drive unit, another setpoint variable representing the required dynamic setting of the output variable is preselected. The man |
| 6769395 |
Method, a computer program, and a control and regulating unit for operating an internal combusti |
August 3, 2004 |
| A method for operating an internal combustion engine. The latter has at least one combustion, one induction pipe, and one throttle valve. From the actual position of the throttle valve, a gas charge of the combustion chamber is defined. To improve the emissions and fuel consumption c |
| 6763803 |
Method, computer program and arrangement for controlling the pressure in an underpressure store |
July 20, 2004 |
| The pressure in an underpressure store of a pneumatically operated servo system is controlled by a method wherein the underpressure store is charged with an underpressure via a suction line. A higher desired pressure for the underpressure store is pregiven in a rest state of the serv |
| 6735942 |
Method, computer program, and control unit for operating a vacuum reservoir provided in an inter |
May 18, 2004 |
| Described are a method, a computer program, and a control unit for operating a vacuum reservoir provided in an internal combustion engine of a motor vehicle for a servo booster or power-assist unit of the internal combustion engine, which is coupled to an intake manifold of the internal |
| 6722350 |
Method for operating an internal combustion engine |
April 20, 2004 |
| An internal combustion engine (1), especially of a motor vehicle, is described. The engine (1) is provided with a combustion chamber (4) into which fuel can be injected in a first operating mode during a compression phase and in a second operating mode during an induction phase. The engi |
| 6708103 |
Method, computer program, and control and/or regulating device for operating an internal combust |
March 16, 2004 |
| Controlling an internal combustion engine which has an additional component provided in its exhaust gas conduit including a turbine and turbo of a turbo charger, includes enriching a mixture at a high throughput, determining a main filling signal by a main filling signal sensor and a |
| 6659091 |
Method for compensating for abnormal changes in the gas flow passing through an exhaust gas reci |
December 9, 2003 |
| The goal is to reliably diagnose and compensate for a change in the gas flow passing through an exhaust gas recirculation line. For this purpose, according to a first method, the mass flow passing through the exhaust gas recirculation line is derived as a function of the position and the |
| 6615812 |
Method and arrangement for operating an internal combustion engine |
September 9, 2003 |
| The invention relates to a method and an arrangement for operating an internal combustion engine wherein at least one control quantity of the engine is influenced in dependence upon a signal representing the fresh air charge. The throttle flap angle and the intake manifold pressure are |
| 6588261 |
Method for determining the air entering the cylinders of an internal combustion engine having a |
July 8, 2003 |
| A device for determining air entering cylinders of an internal combustion engine having a supercharger. The air is determined as a function of such quantities as rpm, air throughput in the intake manifold, throttle valve position values and temperature, characterized in that at least the |
| 6588257 |
Method for checking the plausibility of the measured load in an internal combustion engine havin |
July 8, 2003 |
| The plausibility check takes place in such a way that a first piece of load information is derived as a function of the throttle valve position and a differential pressure determined from the pressure upstream of the throttle valve and the pressure downstream of the throttle valve. In |
| 6546789 |
Method and arrangement for monitoring the operation of an intake-manifold flap for switching ove |
April 15, 2003 |
| The invention is directed to a method for monitoring the operation of an intake-manifold flap for switching the intake manifold of an internal combustion engine. The engine rpm (nmot) is measured utilizing an rpm sensor and the air mass flow (ms) is measured utilizing an air mass flow |
| 6539915 |
Method and device for operating an internal combustion engine |
April 1, 2003 |
| Method and arrangement for operating an internal combustion engine (10) which can be operated in several modes of operation, especially an internal combustion engine (10) having direct injection (DE) or intake manifold injection (SRE) and with a control apparatus (11). The control ap |
| 6467451 |
Method for operating an internal combustion engine |
October 22, 2002 |
| An internal combustion engine, especially for a motor vehicle, is described which is provided with a combustion chamber into which fuel can be injected in at least two operating modes. A control apparatus is provided with which a switchover can be made between the operating modes in |
| 6422202 |
Method and device for controlling a gas flow over a throttle valve in an internal combustion eng |
July 23, 2002 |
| A method and a device for controlling a gas flow over a throttle valve in an internal combustion engine. The method and device can be used in particular in internal combustion engines in motor vehicles and allow for fast and accurate control of a gas flow while minimizing apparatus and |
| 6394063 |
Method for operating an internal combustion engine |
May 28, 2002 |
| An internal combustion engine especially for a motor vehicle is described which is provided with a combustion chamber into which fuel can be injected in at least two operating modes. A control apparatus is provided with which a switchover can be made between the operating modes in de |
| 6386174 |
Method for operating an internal combustion engine |
May 14, 2002 |
| The invention is directed to an internal combustion engine, especially for a motor vehicle. The engine has a combustion chamber into which fuel can be injected in at least two operating modes. A control apparatus is provided with which a switchover between the operating modes can be |
| 6352065 |
Method and device for determining the gas intake in an internal combustion engine |
March 5, 2002 |
| A method for determining a gas charge of an internal combustion engine having an intake manifold. The intake manifold has a gas mixture, which is a fresh air/fuel mixture and an exhaust gas, and further has a gas mass flow from the intake manifold and an intake manifold pressure. The met |
| 6349699 |
Method of and device for operating a vacuum accumulator of an internal combustion engine, provid |
February 26, 2002 |
| A method of operating an internal combustion engine of a motor vehicle provided with a vacuum accumulator which provides an auxiliary energy required for at least one servo function of the internal combustion engine in form of a vacuum and which is acted upon by a vacuum acting in a |
| 6329807 |
Device for the recognition of a defective signal |
December 11, 2001 |
| The device for detecting an erroneous signal characteristic of a load on an internal combustion engine that includes first and second differentiators (10,16) with delay devices that generate corresponding output signals (S11, S22) from respective load signals (S1,S2); first and second |
| 6273077 |
Method and apparatus for operation of an internal combustion engine, especially of a motor vehic |
August 14, 2001 |
| The method of operating an internal combustion engine, especially of a motor vehicle, having a combustion chamber (4), which is operable in a plurality of combustion cycles, includes feeding an air mass (42) and a fuel mass (3) into the combustion chamber (4) in each combustion cycle; |
| 6272427 |
Method and device for controlling an internal combustion engine in accordance with operating par |
August 7, 2001 |
| A method and a device for controlling an internal combustion engine as a function of performance characteristics such as load, engine speed, a corrected value for the intake air temperature being used for the control, the corrected value being obtained from the following formula:whereTAN |
| 6256576 |
Method and device for controlling operation of a vehicle |
July 3, 2001 |
| The method for controlling operation of a vehicle having at least two possible operating modes includes calculating and/or determining the operating variables and/or control variables of at least one active one of at least two possible operating modes in a first continually repeated |
| 6247462 |
System for operating an internal combustion engine, especially for a motor vehicle |
June 19, 2001 |
| An internal combustion engine (1), especially for a motor vehicle is described, which is provided with a regulating valve (8) arranged in an intake pipe (6), through which air is fed to a combustion chamber (4). Furthermore the internal combustion engine (1) is provided with an exhaust |
| 6123060 |
Method of avoiding erroneous announcements when diagnosing a tank-venting system of a motor vehi |
September 26, 2000 |
| The invention is directed to a method of avoiding an erroneous fault announcement when diagnosing a tank-venting system for a motor vehicle having an internal combustion engine. In the method a change in elevation is determined at which the motor vehicle is operated during the diagnosis |
| 6109249 |
System for operating an internal combustion engine |
August 29, 2000 |
| An internal combustion engine, in particular for a motor vehicle, includes a throttle arranged in an intake pipe, through which air can be fed to a combustion chamber. Furthermore, the internal combustion engine includes a valve arranged in an exhaust gas recirculation line, through whic |
| 6068574 |
Method and arrangement for controlling an output torque of a drive train of a vehicle |
May 30, 2000 |
| The invention is directed to a method and an arrangement for controlling an output torque of a drive train of a motor vehicle. A desired value for the output torque is made available by the adjustment of a transmission and by the control of the engine. The desired value is determined on |
| 6029642 |
Method for forming a fuel-metering signal for an internal combustion engine |
February 29, 2000 |
| The invention is directed to a method for computing a fuel-metering signal for adjusting a pregiven lambda value for the composition of the air/fuel mixture of an internal combustion engine. In the method, a first signal is formed which represents the air quantity flowing into the engine |
| 5889203 |
Method for determining the load signal of an internal combustion engine having external exhaust- |
March 30, 1999 |
| The invention is directed to a method for determining a load signal of an internal combustion engine having an intake pipe with a pressure sensor, external exhaust-gas recirculation (EGR) and an EGR valve. A load signal (tl) is computed in a circuit arrangement which is proportional to t |
| 5873350 |
Method for adapting the delay time of an electromagnetic tank-venting valve |
February 23, 1999 |
| The invention is directed to a method for periodically clock driving a through-flow control valve between a first position wherein the valve is closed and a second position wherein the control valve is open to pass a flow of fluid therethrough. The valve is driven by a drive signal havin |
| 5787867 |
Lambda control method |
August 4, 1998 |
| The invention is directed to a method for controlling the composition of the air/fuel mixture for an internal combustion engine. In the method, the mean value of the control oscillation is influenced via a change of the delay times tv with which a sign reversal of the actuating variable |
| 5765538 |
Pump device for a fuel vapor retention system of an internal combustion engine |
June 16, 1998 |
| A pump device for performing a leak diagnosis of a fuel vapor retention system. The pump device is provided for a fuel vapor retention system of an internal combustion engine, having a pump membrane driven by an electromagnet and a magnetic armature, which membrane defines a supply c |
| 5763771 |
Method and arrangement for detecting and documenting damage to a catalytic converter |
June 9, 1998 |
| The invention is directed to a method for detecting and documenting damage to a catalytic converter in a motor vehicle having a fuel tank and an internal combustion engine wherein combustion misfires can occur when the level of fuel in the tank drops below a critical level. The method |
| 5716301 |
System for determining a gear ratio change for an automatic transmission |
February 10, 1998 |
| The invention is based on an adaptive transmission control wherein changes in the gear ratio of the automatic transmission are determined in dependence upon the detected position of the accelerator pedal actuated by the driver or variables associated therewith and in dependence upon the |
| 5666925 |
Method and arrangement for diagnosing a tank-venting system |
September 16, 1997 |
| The invention is directed to a method for checking the tightness of a tank-venting system used with an internal combustion engine having an intake pipe. The tank-venting system includes a fuel tank wherein fuel vapor forms, a storage device connected to the fuel tank, the storage dev |
| 5560243 |
Device for venting a fuel tank and a process for checking the functional capability of the devic |
October 1, 1996 |
| A venting device comprising connecting lines which are embodied as double-walled that form hollow spaces and whose hollow spaces communicate with one another and with an intake pipe by means of bypass lines. By means of a pressure sensor installed in a bypass line, the vacuum is meas |
| 5546918 |
Method of adjusting the composition of the operating mixture for an internal combustion engine |
August 20, 1996 |
| The invention relates to a learning control method for adjusting the composition of an operating mixture for an internal combustion engine. The method includes the steps of: detecting the actual value of the composition; forming a control variable as a function of the instantaneous d |
| 5537322 |
System and method for determining a gradient speed of a shaft driven by an internal combustion e |
July 16, 1996 |
| In a system and a method for determining the speed gradient dn/dt of a shaft of an internal combustion engine, the speed gradient dn/dt is determined as a function of the third power of the speed and the difference between two segment times in the control device. The speed gradient i |
| 5533479 |
Method and system for a fuel tank ventilation |
July 9, 1996 |
| In a method and a system for the ventilation of a fuel tank of a motor vehicle having an internal-combustion engine which has a suction pipe with a bypass containing, in particular, an idling adjuster, the fuel tank being capable of being ventilated into the open by way of a ventilation |
| 5524600 |
Method and arrangement for controlling a tank-venting apparatus |
June 11, 1996 |
| The invention relates to a method and an apparatus for controlling a tank-venting apparatus. The method affords the advantage that the volume flow changes are compensated before they operate on the composition of the mixture inducted by the engine. In cases where desired, a further a |
| 5460141 |
Method and apparatus for checking the tightness of a tank-venting system |
October 24, 1995 |
| The invention is directed to a method for checking the tightness of a tank-venting system when a pregiven test condition is satisfied. The method includes the steps of: (a) building up a difference pressure in the tank-venting system irrespective of whether the pregiven test condition is |
