#IFP ENERGIES NOUVELLES [FR]

Method of determining the residual capacity of a battery

The method involves determining a parameter representing aging effect of an electrochemical cell by measurements and a no-load voltage model of the electrochemical cell provided by software executed o…

DRIVE·Sep 10·1 min read

B60L58/12 IFP ENERGIES NOUVELLES [FR]

Method for controlling an engine including a cylinder provided with an inlet valve driven by a camless actuator

The method involves acquiring set points of opening angle (thetaivo) and closing angle (thetaivc) of an intake valve, and constructing a filling module (MR) of a cylinder. A sucked air mass setpoint i…

DRIVE·Jun 18·1 min read

F02D13/0223 IFP ENERGIES NOUVELLES [FR]

Balancing converter for batteries comprising a diagnosis means

The converter has a switch matrix (MC) including switches e.g. static relays, connected to cells (C) of an electric battery. A balancing system is connected to the switch matrix for charging and disch…

DRIVE·Apr 30·1 min read

H01M10/482 IFP ENERGIES NOUVELLES [FR]

System for driving the movement of a hybrid vehicle

The powertrain has a main electric machine (12) connected to an axle shaft (24). A speed transmission device (36) comprises a primary transmission shaft (38) connected to a drive shaft (18) of a therm…

DRIVE·Apr 2·1 min read

B60K6/36 IFP ENERGIES NOUVELLES [FR]

Method for determining an energy indicator of a movement of a vehicle

The method involves dividing travel into segments, where each segment is defined between two successive breakpoints. Distance and average speed of the segments are determined based on measured instant…

DRIVE·Mar 5·1 min read

B60L15/2009 IFP ENERGIES NOUVELLES [FR]

Internal combustion engine associated with a closed loop with Rankine cycle and with a water injection circuit at the intake of the engine.

The internal combustion engine (10) has cylinders (16), combustion chambers (18), an air intake (20) and a burnt gas exhaust (22). The engine further includes a dual mode heat exchanger (28) with a Ra…

DRIVE·Dec 25·1 min read

F01K21/02 IFP ENERGIES NOUVELLES [FR]

Method of scanning residual burnt gases by double valve lift for a two-stroke engine, in particular Diesel type.

The method involves providing a relaxation phase for a two-stroke internal combustion engine i.e. diesel engine, and carrying out a sequence of opening/closing of an exhaust valve (26) before introduc…

DRIVE·Dec 18·1 min read

F01B17/02 IFP ENERGIES NOUVELLES [FR]

Two-stroke engine, in particular of Diesel type, with exhaust gas purging of the combustion chamber and a method for such a motor

The engine has a cylinder (10) provided with a combustion chamber (14). An exhaust unit (22) is provided with an exhaust manifold (24) that is controlled by an exhaust valve (26). An air inlet channel…

DRIVE·Oct 23·1 min read

F02B25/02 IFP ENERGIES NOUVELLES [FR]

METHOD FOR CONTROLLING A VEHICLE HYBRID PROPULSION SYSTEM DURING TRANSIENT BEHAVIOUR

The method involves constructing a nitrogen oxide (NOx) emission model for estimation of emissions of a diesel engine as a function of torque of the diesel engine. A dynamic NOx emission setpoint is c…

DRIVE·May 22·1 min read

B60W10/06 IFP ENERGIES NOUVELLES [FR]

Method for controlling the burnt gas fraction in an engine cylinder with external and internal exhaust gas recirculation

The method involves acquiring a torque setpoint for an engine. Position setpoints for respective actuators are determined using a burnt gas flow model (MEGB), which relates the position setpoints of t…

DRIVE·May 22·1 min read

F02D13/0215 IFP ENERGIES NOUVELLES [FR]

Method for controlling a closed circuit operating according to a Rankine cycle and circuit using such a method

The method involves sweeping a heat exchanger (14) by a heat source (16) to heat working liquid. The hot fluid is expanded by an expansion unit (22). A cooling exchanger (26) is swept by cooling fluid…

DRIVE·May 1·1 min read

A45C15/00 IFP ENERGIES NOUVELLES [FR]

METHOD FOR CONTROLLING AN EXHAUST GAS RECIRCULATION VALVE

The method involves measuring a pressure difference on level of an exhaust gas recirculation (EGR) valve (6). A burnt gas fraction set point in an intake manifold (3) is selected. An opening set point…

DRIVE·Apr 17·1 min read

F02D41/005 IFP ENERGIES NOUVELLES [FR]

Method for controlling a combustion engine according to an estimation of the mass fraction of burnt gases in the intake manifold

The method involves performing a measurement relative to flow rate of gas, fresh air or burnt gas, in upstream of a mixing space in which the air and the burnt gas are mixed. Burnt gas mass fraction (…

DRIVE·Apr 17·1 min read

F02D41/0072 IFP ENERGIES NOUVELLES [FR]

Method and system for diagnosing the internal state of a battery by acoustic emission

The method involves measuring an acoustic emission response of a battery for internal states of the battery (E1), and recording response characteristic signals. The response characteristic signals are…

DRIVE·Apr 3·1 min read

G01N29/14 IFP ENERGIES NOUVELLES [FR]

METHOD FOR CONTROLLING IN PARTICULAR THE IGNITION OF THE COMBUSTION OF A GASOLINE DIRECT INJECTION INTERNAL COMBUSTION ENGINE

The method involves determining operational zone of the engine (10) in which particulates are emitted during combustion of the fuel/air mixture. The fuel/air mixture resulting from indirect injection …

DRIVE·Mar 27·1 min read

F02D19/06 IFP ENERGIES NOUVELLES [FR]

Method for detecting and characterising abnormal combustion in internal combustion engines

The method involves selecting combustion indicators e.g. crank angle position (CA10), and defining a multidimensional space in which each dimension corresponds to one of the indicators and combustion …

DRIVE·Jan 23·1 min read

F02D35/02 IFP ENERGIES NOUVELLES [FR]

Method for estimating the pinking intensity of an internal combustion engine by inverting a wave equation

The method involves constructing a wave equation model of a cylinder-head based on a physical model describing propagation of waves in a solid medium. Coefficients of a Fourier decomposition of a vibr…

DRIVE·Dec 5·1 min read

F02B77/085 IFP ENERGIES NOUVELLES [FR]

Method for controlling the combustion of a fuel-air mixture for a turbocharged internal combustion engine with controlled ignition, in particular a petrol engine

The method involves determining a crank angle value at which maximum pressure of a cylinder (12) occurs in a combustion chamber (14), during combustion of a fuel mixture. The value is compared with a …

DRIVE·Jan 18·1 min read

F02D19/0636 IFP ENERGIES NOUVELLES [FR]

Speed transmission device for a hybrid motor vehicle

The device i.e. gear box, has a primary shaft (34) connected to a heat engine (10) through a disengageable coupling i.e. centrifugal clutch (36). The shaft carries toothed wheels (50, 52) cooperating …

DRIVE·Jan 11·1 min read

B60K6/383 IFP ENERGIES NOUVELLES [FR]

Method for controlling fresh air supply to the exhaust system of an internal combustion engine

The method involves injecting fresh air into an exhaust during cold start phase of an internal combustion engine and expansion phase. An exhaust valve (34) is opened when pressure in a combustion cham…

DRIVE·Nov 16·1 min read

F01N3/22 IFP ENERGIES NOUVELLES [FR]

Method for cogeneration of mechanical-electric energy and heat

The method involves dehydrating synthetic gas by condensation of water contained in the gas, and transforming dehydrated synthetic gas into electrical energy and into heat. An unconverted synthetic ga…

DRIVE·Oct 26·1 min read

C01B3/323 IFP ENERGIES NOUVELLES [FR]

Device and method for control of a working fluid in a closed Rankine cycle

The device has a heat exchanger (22) i.e. evaporator, for evaporation fluid, and an expansion unit (30) for expanding the fluid in vapor form. A cooling exchanger (40) i.e. condenser, is swept by cold…

DRIVE·Sep 14·1 min read

F01K13/02 IFP ENERGIES NOUVELLES [FR]

Method for scavenging residual burnt gas in a supercharged direct-injection internal combustion engine operating at partial loads.

The method involves controlling closing of intake valve during scavenging stage which affects pressure inside chamber. During closing of intake valve, the exhaust pressure is lessened, generating a pr…

DRIVE·Aug 10·1 min read

F02B25/145 IFP ENERGIES NOUVELLES [FR]

Method of scavenging residual combustion gases of a multicylinder supercharged direct-injection internal combustion engine.

The method involves regulating opening/closing of exhaust valve at crank angle during exhaust phase operation of a diesel type engine. The opening/closing sequence of exhaust valve starts after the st…

DRIVE·Aug 10·1 min read

F02B25/02 IFP ENERGIES NOUVELLES [FR]

Transmission device with variable ratio for vehicle powertrain and hybrid vehicle using such a transmission

The device (14) has a crown (50) connected to an engine shaft (12) of a thermal engine (10) of a motor vehicle. A planet gear carrier (58) is connected to a drive axle (16) of the motor vehicle by a m…

DRIVE·Jul 20·1 min read

B60K6/383 IFP ENERGIES NOUVELLES [FR]

Method of detection of abnormal combustion for internal combustion engines based on a plurality of combustion indicators

The Method involves detecting abnormal combustion in combustion chamber (14) of cylinder (12). Signal representative of combustion state is recorded by detector (46a) and obtaining combustion indicato…

DRIVE·May 25·1 min read

F02D35/023 IFP ENERGIES NOUVELLES [FR]

Method of detecting abnormal combustion for internal combustion engines based on modelled distributions of combustion indicators

The method involves collecting end values from N values indicating combustions for different operating points of a spark ignition internal combustion engine to obtain evolution of coefficients of theo…

DRIVE·May 25·1 min read

F02D35/023 IFP ENERGIES NOUVELLES [FR]

Method for simulating the thermal comportment of an electro-chemical system

The method involves generating a thermal flux at each point of a space by an electrochemical model based on exothermic and endothermic chemical reactions, where the thermal flux is integrated at each …

DRIVE·Mar 9·1 min read

G01R31/367 IFP ENERGIES NOUVELLES [FR]

Method and system for controlling the active regeneration of a particle filter

The method involves determining a set point temperature of gas, and determining a temperature request for controlling the temperature. A stationary gain is defined as ratio between a stationary value …

DRIVE·Mar 9·1 min read

F01N3/0253 IFP ENERGIES NOUVELLES [FR]

System for driving a hybrid vehicle and method therefore

The system has a rotor (16) connected to an electric accumulator (72). A drive shaft (12) is controlled by an electric machine (14) and/or an internal-combustion engine (10) for rotating a motive axle…

DRIVE·Jan 26·1 min read

B60K6/36 IFP ENERGIES NOUVELLES [FR]