Patents by Inventor Sven Merkle
Sven Merkle has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9605607Abstract: A method is provided for controlling a filling (rl) of an internal combustion engine (2) including the camshaft phase adjustment in the case of a predefined setpoint filling (rlsol), including the following steps: carrying out the filling control based on an indicated pressure difference for obtaining a control variable (?Fuereg) for setting an air mass supply to the internal combustion engine (2); and ascertaining the indicated pressure difference (?pSR) as a difference between a predicted intake manifold pressure (psrpred) and an actual intake manifold pressure (pSR), the predicted intake manifold pressure (psrpred) corresponding to an intake manifold pressure which is necessary for reaching the setpoint filling (rlsol) at an aspiration curve which is predicted for a predefined time constant (?).Type: GrantFiled: November 25, 2014Date of Patent: March 28, 2017Assignee: ROBERT BOSCH GMBHInventors: Isabelle Elsner, Sven Merkle, Matthias Pfau, Andreas Bethmann
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Publication number: 20150144104Abstract: A method is provided for controlling a filling (rl) of an internal combustion engine (2) including the camshaft phase adjustment in the case of a predefined setpoint filling (rlsol), including the following steps: carrying out the filling control based on an indicated pressure difference for obtaining a control variable (?Fuereg) for setting an air mass supply to the internal combustion engine (2); and ascertaining the indicated pressure difference (?pSR) as a difference between a predicted intake manifold pressure (psrpred) and an actual intake manifold pressure (pSR), the predicted intake manifold pressure (psrpred) corresponding to an intake manifold pressure which is necessary for reaching the setpoint filling (rlsol) at an aspiration curve which is predicted for a predefined time constant (?).Type: ApplicationFiled: November 25, 2014Publication date: May 28, 2015Inventors: Isabelle Elsner, Sven Merkle, Matthias Pfau, Andreas Bethmann
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Publication number: 20150144113Abstract: A method for operating an internal combustion engine is described, the internal combustion engine including a cylinder having an inlet valve for supplying fresh air from an intake manifold in a controlled manner, an air filling being set in a certain operating mode by predefining a closing point in time of the inlet valve in an intake stroke at a constant intake manifold pressure.Type: ApplicationFiled: November 26, 2014Publication date: May 28, 2015Inventors: Sven MERKLE, Michael DRUNG, Matthias PFAU, Rainer MAIER, Martin KROENER, Matthias SIMONS, Andreas BETHMANN
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Publication number: 20150040865Abstract: In a method for adapting a torque model for operating an internal combustion engine, which torque model indicates an ignition angle adjustment as a function of an air charge in a cylinder of the internal combustion engine, the torque model is adapted based on a variation of an operating variable of the internal combustion engine caused by a mode switching.Type: ApplicationFiled: August 4, 2014Publication date: February 12, 2015Applicant: Robert Bosch GmbHInventors: Sven MERKLE, Matthias PFAU, Matthias SIMONS, Andreas BETHMANN, Stefan GOTTLIEB, Stephan von Adrian-Werburg, Benedikt TACKE
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Patent number: 6807850Abstract: In a method for determining the torque of the crankshaft of an internal combustion engine, the intake work of the cylinder in the respective working cycle during the intake period, the compression work of the cylinder in the respective working cycle during the compression period, the combustion work of the cylinder in the respective working cycle during the combustion period and the expulsion work of the cylinder in the respective working cycle during the exhaust period are determined, and the work on the crankshaft in the respective working cycle is determined therefrom.Type: GrantFiled: September 17, 2001Date of Patent: October 26, 2004Assignee: DaimlerChrysler AGInventors: Dieter Kalweit, Sven Merkle, Tobias Roulet
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Publication number: 20040020280Abstract: In a method for determining the torque of the crankshaft of an internal combustion engine, the intake work of the cylinder in the respective working cycle during the intake period, the compression work of the cylinder in the respective working cycle during the compression period, the combustion work of the cylinder in the respective working cycle during the combustion period and the expulsion work of the cylinder in the respective working cycle during the exhaust period are determined, and the work on the crankshaft in the respective working cycle is determined therefrom.Type: ApplicationFiled: September 17, 2001Publication date: February 5, 2004Inventors: Dieter Kalweit, Sven Merkle, Tobias Roulet
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Patent number: 6671603Abstract: A method is provided for controlling power units of a vehicle powertrain for optimizing their respective efficiencies, thereby optimizing an overall vehicle efficiency. The method includes the steps of determining an efficiency of a power unit, determining present operational data of the power unit, determining a torque to be provided to the vehicle powertrain, determining a plurality of optimization constraints as a function of the torque to be provided, the present operational data and the efficiency of the power unit, determining an optimized operation mode of the power unit as a function of the optimization constraints and the present operational data of the power unit, and manipulating the power unit to operate in the optimized operation mode.Type: GrantFiled: December 21, 2001Date of Patent: December 30, 2003Assignee: DaimlerChrysler CorporationInventors: Michael J Cari, Timothy A Coatesworth, Gregory L Ohl, Sven Merkle
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Publication number: 20030120410Abstract: A method is provided for controlling power units of a vehicle powertrain for optimizing their respective efficiencies, thereby optimizing an overall vehicle efficiency. The method includes the steps of determining an efficiency of a power unit, determining present operational data of the power unit, determining a torque to be provided to the vehicle powertrain, determining a plurality of optimization constraints as a function of the torque to be provided, the present operational data and the efficiency of the power unit, determining an optimized operation mode of the power unit as a function of the optimization constraints and the present operational data of the power unit, and manipulating the power unit to operate in the optimized operation mode.Type: ApplicationFiled: December 21, 2001Publication date: June 26, 2003Inventors: Michael J. Cari, Timothy A. Coatesworth, Gregory L. Ohl, Sven Merkle
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Patent number: 6530358Abstract: In a method for controlling an internal combustion engine by means of interventions in at least one manipulated variable of the internal combustion engine, a setpoint torque or work which is to be performed is determined at the crankshaft of the internal combustion engine, wherein, with respect to a first variable as work which is to be performed or a setpoint torque to be provided, a corresponding setpoint quantity of heat is determined taking into account the instantaneous actual efficiency, with respect to which at least one associated manipulated variable is set in accordance with the value of the set-point quantity of heat, and, for precise setting of the torque, the actual quantity of heat also being sensed, a setpoint efficiency being determined from the actual quantity of heat taking into account work which is to be performed or a setpoint torque which is to be provided, this can correspond to the first variable or to another variable which is formed as a setpoint torque or work which is to be performType: GrantFiled: September 17, 2001Date of Patent: March 11, 2003Assignee: DaimlerChrysler AGInventors: Dieter Kalweit, Sven Merkle, Andrej Panten, Tobias Roulet
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Patent number: 6481414Abstract: In a method for setting an intake manifold pressure or a mass volumetric efficiency of an internal combustion engine, a change in the setting of the engine throttle valve when needed during operation of the engine is increased beyond the desired setting by such an amount and for such a period of time that the change in the setting of the throttle valve corresponds at least approximately to the air mass flow rate which is required in order to set the internal combustion engine to the new load state.Type: GrantFiled: September 17, 2001Date of Patent: November 19, 2002Assignee: DaimlerChrysler AGInventors: Dieter Kalweit, Sven Merkle, Tobias Roulet
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Patent number: 6439196Abstract: An electronic control device for the optional control of various types and operating modes of internal combustion engines includes a calculation device configured to calculate the respectively required manipulated quantities, including at least the manipulated variable (Ti) for the predetermination of the fuel quantity to be injected and the manipulated variable (&agr;) for the predetermination of the throttle valve position of the throttle valve in the intake pipe, dependent on respectively required input parameters, including at least the desired quantity of heat (WM). A switchover device is configured to allocate, dependent on the operating mode, the respectively required input parameters and/or quantities derived therefrom as input quantities for the respectively required calculation device. A single type of control device may be manufactured, in large piece counts and with simplified warehousing, for variable possibilities of application.Type: GrantFiled: June 26, 2001Date of Patent: August 27, 2002Assignee: DaimlerChrysler AGInventors: Dieter Kalweit, Sven Merkle, Ralf Wörner
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Patent number: 6397152Abstract: A method and control apparatus for the correction of a mathematically determined torque in the drive train of a motor vehicle, in which a recognition signal for distinguishing between automatic and manual transmissions is produced and motor and transmission operating states (selected in accord with the recognition signal) in which the actual torque applied to the crankshaft is equal to zero are established. When the motor and transmission operating states are reached, the mathematically determined torque associated with the operating states is compared to the actual (zero) torque, and the difference between the mathematically determined torque and the actual torque is used as a control factor for the correction of additional computed torques.Type: GrantFiled: March 1, 1999Date of Patent: May 28, 2002Assignee: DaimlerChrysler AGInventors: Dieter Kalweit, Sven Merkle, Ralf Woerner
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Publication number: 20020059917Abstract: In a method for setting an intake manifold pressure or a mass volumetric efficiency of an internal combustion engine, a change in the setting of the engine throttle valve when needed during operation of the engine is increased beyond the desired setting by such an amount and for such a period of time that the change in the setting of the throttle valve corresponds at least approximately to the air mass flow rate which is required in order to set the internal combustion engine to the new load state.Type: ApplicationFiled: September 17, 2001Publication date: May 23, 2002Inventors: Dieter Kalweit, Sven Merkle, Tobias Roulet
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Publication number: 20020050264Abstract: In a method for controlling an internal combustion engine by means of interventions in at least one manipulated variable of the internal combustion engine, a setpoint torque or work which is to be performed is determined at the crankshaft of the internal combustion engine, wherein, with respect to a first variable as work which is to be performed or a setpoint torque to be provided, a corresponding setpoint quantity of heat is determined taking into account the instantaneous actual efficiency, with respect to which at least one associated manipulated variable is set in accordance with the value of the set-point quantity of heat, and, for precise setting of the torque, the actual quantity of heat also being sensed, a setpoint efficiency being determined from the actual quantity of heat taking into account work which is to be performed or a setpoint torque which is to be provided, this can correspond to the first variable or to another variable which is formed as a setpoint torque or work which is to be performType: ApplicationFiled: September 17, 2001Publication date: May 2, 2002Inventors: Dieter Kalweit, Sven Merkle, Andrej Panten, Tobias Roulet
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Publication number: 20020020392Abstract: An electronic control device for the optional control of various types and operating modes of internal combustion engines includes a calculation device configured to calculate the respectively required manipulated quantities, including at least the manipulated variable (Ti) for the predetermination of the fuel quantity to be injected and the manipulated variable (&agr;) for the predetermination of the throttle valve position of the throttle valve in the intake pipe, dependent on respectively required input parameters, including at least the desired quantity of heat (WM). A switchover device is configured to allocate, dependent on the operating mode, the respectively required input parameters and/or quantities derived therefrom as input quantities for the respectively required calculation device. A single type of control device may be manufactured, in large piece counts and with simplified warehousing, for variable possibilities of application.Type: ApplicationFiled: June 26, 2001Publication date: February 21, 2002Inventors: Dieter Kalweit, Sven Merkle, Ralf Worner