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Avl List Gmbh patents


Recent patent applications related to Avl List Gmbh. Avl List Gmbh is listed as an Agent/Assignee. Note: Avl List Gmbh may have other listings under different names/spellings. We're not affiliated with Avl List Gmbh, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "A" | Avl List Gmbh-related inventors


Reciprocating piston engine, in particular internal combustion engine

The invention relates to a reciprocating piston engine, in particular an internal combustion engine, comprising at least one length adjustable connecting rod (1) connected to a crankshaft (26), which connecting rod (1) comprises at least one first rod part (2) having a small connecting-rod eye (3) and at least one second rod part (4) having a large connecting-rod eye (5), which two rod parts (2, 4) can be displaced telescopically with respect to and/or into each other by means of a length adjustment device (100), wherein the length adjustment device (100) can be fluidically connected in at least one position of a control valve (15) to at least one oil pressure line (14, 6), and can be separated from the oil pressure line (16) in at least one second position of the control valve (15), wherein the control valve (15) can be electrically switched and inductively actuated. In order to allow the compression ratio to be flexibly changed in a way that is as simple, space-saving and reliable as possible, the control valve (15) can be electrically connected to at least one induction device (21) fixed to the connecting rod, in which an electrical current can be induced in at least one position of the connecting rod (1) by means of at least one magnet device (24) fixed to the crank housing or crankshaft.. ... Avl List Gmbh

Method and device for detecting signal pulses

A device for detecting signal pulses in an analogue measurement signal of a particle counter is disclosed. The device includes an ad converter and an evaluation unit, wherein the evaluation unit includes a slope evaluation unit, which determines signal pulses by evaluating the pulses between adjacent samples in the digital data stream of the ad converter in real time.. ... Avl List Gmbh

Electrical machine

An electrical machine includes a stator, a rotor comprising a shaft, and at least one heat-conducting element. The rotor is arranged at least partially inside the stator. ... Avl List Gmbh

Method for operating an internal combustion engine

The invention relates to a method for operating an internal combustion engine during any driving operation and in particular during a defined testing cycle which determines compliance with regulations. The internal combustion engine has at least one exhaust gas aftertreatment device with an adjustable degree of efficiency (for example by changing the reduction agent) or an exhaust gas recirculation device or alternative variables for changing the raw engine emissions. ... Avl List Gmbh

Method for monitoring the operating state of fuel cells

A measuring routine for monitoring the operating state of a fuel cell arrangement consisting of at least one fuel cell, in which the fuel cell arrangement has an operating load connected to it, at least one power amplifier for supplying at least one low-frequency signal (se1(t), se2(t)) is further provided, the output of which is coupled to the fuel cell arrangement, and having an evaluation device, likewise coupled to the fuel cell arrangement, for capturing a signal response sai(t) to the at least one supplied signal sei(t), wherein the fuel cell arrangement (1) has two or more individual signals (se1(t), se2(t)) at different frequencies (fe1, fe2) supplied to it and the evaluation device is set up to capture the signal response sai(t) for selected frequencies (fa3, fa4) of the intermodulation products (mfe1+/−nfe2) of the supplied individual signals (se1(t), se2(t)) and to measure at least the amplitude of said signal response in order to obtain at least one output signal (saz, s′az, s″az).. . ... Avl List Gmbh

Temperature control unit for gaseous or liquid medium

For a temperature control unit for gaseous or liquid medium with a highly dynamic temperature regulation of the medium, the temperature control unit is designed with a base body and a cooling body between which are arranged multiple thermoelectric modules, and with a media line in the base body, wherein the media line is arranged in the base body in the form of a single-start spiral from the outside to the inside, and it is provided that the multiple thermoelectric modules are arranged in a plurality of rows on the base body, wherein the module heating power of a thermoelectric module situated further toward the outside radially is greater than the module heating power of a thermoelectric module situated further toward the inside radially.. . ... Avl List Gmbh

Method and device for performing a test run on a test stand

To make the handling of a tire model for controlling a test run on a test bench simpler and more flexible and thus more practicable, it is provided that at least one longitudinal velocity of a tire is calculated in a first simulation unit with a first simulation model, and the longitudinal velocity is provided to a second simulation unit, and a longitudinal force and/or a rolling resistance torque of the tire are calculated with a second simulation model in the second simulation unit on the basis of the longitudinal velocity, and said longitudinal force and/or rolling resistance torque are used to calculate at least one target dyno value for a drive control unit of a load machine of the test bench.. . ... Avl List Gmbh

Liquid-cooled internal combustion engine

The invention relates to a liquid-cooled internal combustion engine comprising at least one cylinder block which has a cooling jacket (1) and comprises multiple cylinders (2). The cooling jacket (1) has a base (3) facing a crankcase and a cover (4) facing a cylinder head sealing plane (4a), and the base (3) has an undulating course when seen in a lateral view of the cylinder block. ... Avl List Gmbh

Method for testing a brake system of a vehicle

The invention relates to a method for testing a brake system (b) of a vehicle (f), wherein simulation results are used for the adaptation of a test on a test stand (p). The object of the invention is to provide a method for improving the test of the brake system (b). ... Avl List Gmbh

Cylinder head for an internal combustion engine

The invention relates to a cylinder head (4) for an internal combustion engine having liquid cooling, comprising at least two outlet valves for controlling outlet openings (14) and at least one inlet valve for controlling at least one inlet opening (15) per cylinder (2), having at least one cooling jacket (3) through which coolant flows. An outlet valve bridge (7) is arranged between two adjacent outlet valves and an inlet/outlet valve bridge (8) is arranged in each case between at least one outlet valve and an adjacent inlet valve. ... Avl List Gmbh

Method for operating a driving simulator

The invention relates to a method for operating a driving simulator having the following steps: detecting a braking request in the driving simulator, in particular on the basis of actuation of a brake actuator; converting the detected braking request into at least one braking signal suitable for characterising the braking request; transmitting the at least one braking signal from the driving stimulator to a test bench on which are mounted at least part of a drivetrain with at least one axle section of a vehicle, in particular an axle half, and at least one brake associated with the at least one axle section; rotating the at least one axle section at a wheel speed which corresponds to a predefined speed of the vehicle; actuating the at least one brake of the vehicle on the basis of the at least one braking signal; setting a predefined torque or a predefined wheel speed of at least one axle section of the at least one dynamometer on the basis of properties of at least one component of the vehicle, in particular of the drivetrain, of the vehicle and/or of the entire vehicle, wherein the properties are at least partially simulated; detecting the actual wheel speed at a predefined torque or the actual torque at a predefined wheel speed; and outputting the actual wheel speed or the actual torque to the driving simulator.. . ... Avl List Gmbh

Multi-speed transmission and method for operating the same

The invention relates to a multi-speed transmission (10, 110), comprising a power split device (11; 111), an input shaft (12, 112) of the transmission (10, 110) being connected or connectable to prime mover (18, 118), an output shaft (13; 113), two shiftable sub-transmissions (14, 114; 15, 115), each providing a plurality of different gear ratios, and at least one rotating electric machine (16; 116, 116a), connected to said power split device (11; 111), wherein the two sub-transmissions (14, 114; 15, 115) can be connected alternatively to the output shaft (13, 113), and a control system (26; 126, 126a), connecting said electric machine (16; 116, 116a) with an electric battery (27; 127) and auxiliary electrical consumers (31, 131). The electric machine (16; 116, 116a) is connected to the power split device (11; 111) in a way that it allows to reduce torque value down to zero on either an input shaft (20; 120) of the first sub-transmission (14; 114) or on an input shaft (22; 122) of the second sub-transmission (15; 115) by applying different shaft torque levels, and the internal heat generation capacity of the electric machine (16; 116, 116a) exceeds the power capacity of the power line in said control system (26; 126, 126a).. ... Avl List Gmbh

Method for reconstructing a data packet incorrectly received in a wireless sensor network

In order to manage with a smaller number of retransmissions of a data packet during attempts to reconstruct a data packet that has been incorrectly received in a wireless sensor network, it is proposed to implement in the receiving unit (2) a first method and a second method for reconstructing the incorrectly received data packet (dp), in a first step to apply the first method for reconstructing the incorrectly received data packet (dp) and to check for whether the data packet (dp) has thus been reconstructed, and in a subsequent second step to apply the second method for reconstructing the incorrectly received data packet (dp) if the incorrectly received data packet (dp) has not been reconstructed with the first method, and to check for whether the data packet (dp) has thus been reconstructed.. . ... Avl List Gmbh

Method and test stand for testing an assembly of components of a vehicle

In order to be able to test an assembly of components of a vehicle on a test stand with improved dynamics, it is provided to calculate, in a simulation unit (20) using a simulation model (21) for the at least one component of the assembly, the instantaneous drive train rotary speed (np) of this component from a drive train torque (tp) acting in the drive train (2) and the braking effect (b) of the braking system (11), and the calculated instantaneous drive train rotary speed (np) is used by the vehicle control device (14) for calculating the at least one component, and the calculated drive train rotary speed (np) is used by a drive controller (23) for controlling the load machine (8).. . ... Avl List Gmbh

11/23/17 / #20170335841

Method and device for operating a pump

The invention relates to a method and to a device for calibrating a pump (1) provided in a pump line (6), the device comprising an actuator (2) for setting the pumping capacity of the pump (1), and a control unit (3). The device comprises a flow monitor (4) in the fuel line (6). ... Avl List Gmbh

09/21/17 / #20170268948

System and method for analysing the energy efficiency of a vehicle

A system for analysing an energy efficiency of a vehicle having at least one drive device which is configured to generate mechanical drive force by converting energy, wherein the system has a first device, in particular a sensor, configured for detecting a first data record of at least one first parameter which is suitable for characterizing energy which is consumed by the vehicle, a second device, in particular a sensor, configured for detecting a second data record of at least one second parameter which is suitable for characterizing a driving resistance which the vehicle overcomes, a third device, in particular a sensor, configured for detecting a third data record of at least one third parameter which is suitable for characterizing at least one driving state of the vehicle, a first comparison device, which is in particular part of a data processing device, configured for comparing the values of the third data record with predefined parameter ranges which correspond to at least one driving state, an assignment device (8), which is in particular part of a data processing device, configured for assigning the values of the first data record and the values of the second data record to the respectively present at least one driving state, and a processing device, which is in particular part of a data processing device, configured for determining at least one characteristic value which characterizes the energy efficiency of the vehicle, on the basis of the first data record and of the second data record as a function of the at least one driving state.. . ... Avl List Gmbh

09/14/17 / #20170261392

Method and a device for determining the propulsion torque

In a test run, in order to easily provide a high-quality propulsion torque of a torque generator based on the partially low-quality measured variables available on the test bench, it is foreseen that an inner torque (mi) of the torque generator (d) is measured and based on the measured inner torque (mi), from an equation of motion, including the measured inner torque (mi), a dynamic torque (mdyn) and a shaft torque (mw) measured on the output shaft of the torque generator (d), a correction torque ({circumflex over (m)}cor) is estimated, and from the estimated correction torque ({circumflex over (m)}cor) and the measured inner torque (mi), the propulsion torque (mv) according to the relation mv={circumflex over (m)}cor+mi is computed.. . ... Avl List Gmbh

08/10/17 / #20170227937

Method and controller for model predictive control of a multi-phase dc/dc converter

For an easily implementable method for model predictive control of a dc/dc converter, and a corresponding controller, with which the optimization problem of the model predictive control can also be solved sufficiently quickly with large prediction horizons, the optimization problem is divided into two optimization problems by a model predictive output variable control and a model predictive choke current control being implemented in the control unit (10), wherein: the strands of the multiphase dc/dc converter (12) for the output variable control are combined into a single strand; a time-discrete state space model is produced therefrom; and the output variable control predicts the input voltage (uv,k+1) of the next sampling step (k+1) for this single strand on the basis of a first cost function (jv) of the optimization problem of the output variable control, said input voltage being given to the choke current control as a setpoint and the choke current control determining therefrom the necessary switch positions of the switches (s1, s2, s3, s4, s5, s6) of the strands of the multiphase dc/dc converter (12) for the next sampling step (k+1) on the basis of a second cost function (ji) of the optimization problem of the choke current control.. . ... Avl List Gmbh

08/03/17 / #20170220995

System for recording an inventory of monitoring objects of a plant

Systems and methods for recording an inventory of monitoring objects (1) of a plant (4) having a multiplicity of fixed or non-fixed areas (5) where monitoring objects (1) can be located. The plant (4) is suitable for carrying out sequences of operations using the monitoring objects (1) and has a multiplicity of detection devices (6) which are each assigned to an area (5) of the plant (4). ... Avl List Gmbh

08/03/17 / #20170218893

Fuel consumption-measuring system and method for measuring the fuel consumption of an internal combustion engine

A fuel consumption-measuring system includes a feed line, a first pump which pumps fuel from a tank via the feed line to a consumer, a fuel consumption-measuring device in the feed line, a first return line which branches off at the consumer and opens into the feed line between the fuel consumption-measuring device and the consumer, a second return line which branches off from the feed line between the first pump and the fuel consumption-measuring device which opens into the tank, a branch which leads from the feed line into the second return line, a heat exchanger, and a flow device arranged in the first and second return lines. The flow device provides an equal volume flow at an opening of the first return line into the feed line and at the branch leading from the feed line into the second return line.. ... Avl List Gmbh

06/29/17 / #20170184205

Linear control valve

To achieve a compactly designed, simple and robust control valve for a hydrodynamic torque generator which is linear over a wide adjustment range, the control channel (12) of the control valve is formed in such a way that a substantially linear relationship between valve position (α) and flow ({dot over (v)}) is achieved by rotating the valve body (6) between a first valve position (α1), which differs from the closed position, and a second valve position (α2) with a larger flow ({dot over (v)}) than in the first position (α1).. . ... Avl List Gmbh

02/23/17 / #20170050644

System and method for analyzing the energy efficiency of a motor vehicle, in particular of an apparatus of the motor vehicle

The invention relates to a system (1) for analyzing an energy efficiency of a motor vehicle (2), having: a first device (4a, 4b), in particular a sensor, configured to detect a first data set of at least one first parameter, which is suitable to characterize energy consumed by at least one apparatus a, in particular a steering system or drive device (3); a second device (5a, 5b, 5c, 5d), in particular a sensor, configured to detect a second data set of at least one second parameter, which is suitable to characterize an operating state of the at least one apparatus a; a third device (6), configured to detect a third data set of at least one third parameter, which is suitable to characterize at least one driving state of the vehicle (2); a first comparison device (7), in particular part of a data processing device, configured to compare the values of the second data set with predefined parameter ranges which correspond to at least one operating state, and to compare the values of the third data set with predefined parameter ranges which correspond to at least one driving state; an allocation device (8), in particular part of the data-processing device, configured to allocate the values of the first data set and the values of the second data set to the respectively present at least one driving state; and a processing device (9), in particular part of the data-processing device, configured to determine at least one first characteristic value which characterizes at least the energy efficiency of the at least one apparatus a on the basis of the first data set and the second data set as a function of the at least one driving state.. . ... Avl List Gmbh

02/23/17 / #20170050590

System for assessing and/or optimising the operating behaviour

The invention relates to a system for assessing and/or optimising the operating behaviour of a vehicle that has at least one apparatus for processing fuel, in particular an internal combustion engine and/or a fuel cell, wherein the system has: a plurality of first sensors designed to measure parameters that are suitable for characterising a vehicle operating state; at least one second sensor designed to measure at least one parameter that is suitable for characterising an emission of the apparatus for processing fuel; a control device designed to measure repeatedly over a predefined time period and to determine a vehicle operating state on the basis of a first data set with measured values from the plurality of first sensors and on the basis of predefined parameter ranges that describe at least one predefined vehicle operating state; an allocation device designed to allocate a second data set comprising measured values from the at least one second sensor to the at least one predefined vehicle operating state; and an evaluation device designed to determine at least one characteristic value for assessing and/or optimising the operating behaviour of the vehicle on the basis of the at least one vehicle operating state and the second data set, wherein the characteristic value is suitable for characterising an energy efficiency of the vehicle and/or an emission behaviour of the apparatus for processing fuel.. . ... Avl List Gmbh

02/09/17 / #20170037959

Method for evaluating the shifting behavior of a motor vehicle transmission

A method for evaluating a transmission device using various characteristic values, wherein said characteristic values can be determined by means of variable or constant parameters.. . ... Avl List Gmbh

02/02/17 / #20170030299

Lpg direct injection engine

The invention relates to a liquefied petroleum gas direct injection engine (100) comprising at least one cylinder comprising a combustion chamber (1) having a spark plug (2), one or more intake valve or valves (4) and one or more exhaust valve or valves (5). The lpg engine (100) further comprises at least one injector (6) for injecting liquefied petroleum gas in liquid state directly into the combustion chamber, the lpg being injected at a pre-established pressure value; a high pressure pump (9) for feeding pressurized liquefied petroleum gas to at least one injector (6); and an electronic control unit (13) configured to operate the at least one injector (6) for injecting the lpg during a specific injection time period or periods such that a predefined target mass of liquefied petroleum gas is injected, and between 360° btdc and 60° btdc of the engine cycle. ... Avl List Gmbh

01/26/17 / #20170024586

Device and method for transmitting data

The invention relates to a device (1) for transmitting data between at least one data-generating unit (2a-2f) and a remote communication unit (5a-5c). The device (1) has at least one interface (6a-6d) for an internet-based communication protocol to communicate securely with the remote communication unit (5a-5c) via a non-proprietary, preferably publicly accessible network (7), and at least one interface (8a-8i) for a communication protocol that is close to the hardware to communicate with the data-generating unit (2a-2f). ... Avl List Gmbh








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