Abstract: Preparing actual defective product data and non-defective product data, causing a deep generation model to learn the data and to generate latent variables in which features of the non-defective product data and the actual defective product data are mixed, causing a classification model to learn the latent variables to generate a classified non-defective product and defective product latent variable, deleting the non-defective product latent variable from the classified non-defective product and defective product latent variable to output the defective product latent variable including a gray latent variable, causing a distance learning model to learn the defective product latent variable and the non-defective product latent variable and to delete the gray latent variable, and causing the deep generation model to learn the defective product latent variable that has been obtained and to generate the pseudo defective product data greater in number than the actual defective product data.

Abstract: In accordance with an exemplary embodiment, a method is provided for controlling operation of an engine of a vehicle during an idle mode of operation for the engine, the engine having a plurality of different types of fuel injectors and a combustion chamber, including: obtaining, via one or more first sensors of the vehicle, first sensor data as to a speed of the vehicle; obtaining, via one or more second sensors of the vehicle, second sensor data as to a measure of roughness of the engine; and adjusting, via instructions provided by a processor of the vehicle, a fuel injection ratio of respective amounts of fuel provided by the plurality of different types of fuel injectors to the combustion chamber, based on both the speed of the vehicle and the measure of roughness of the engine.

Abstract: A one-pedal control method and system for an autonomous vehicle, are capable of accelerating or decelerating a vehicle by use of a foldable brake pedal system when a foldable accelerator pedal system is broken down when a driver manually drives the vehicle or the mode is switched from an autonomous driving mode to a manual driving mode, and capable of implementing a fail-safe function by use of an integrated safety function of software.

Abstract: A yaw control system for a helicopter having a tailboom includes one or more tail rotors rotatably coupled to the tailboom and a quiet mode controller. The quiet mode controller includes a noise monitoring module configured to monitor one or more flight parameters of the helicopter and a quiet mode command module configured to selectively switch the one or more tail rotors to a quiet mode based on the one or more flight parameters. The quiet mode command module is also configured to modify one or more operating parameters of the one or more tail rotors in the quiet mode to reduce noise emitted by the helicopter.

Abstract: A method includes providing thrust to an aircraft through a power train from a heat engine connected to the power train. The method includes controlling an electric motor connected to the power train to counter torque ripple in the power train from the heat engine. A system includes a power train for providing thrust to an aircraft. A heat engine is connected to the power train. An electric motor is operatively connected to the power train. A controller is operatively connected to control the electric motor. The controller includes machine readable instructions configured to cause the controller to control the electric motor to counter torque ripple in the power train from the heat engine.

Abstract: There is provided a vehicle-power-generator control apparatus that can largely raise the gasoline mileage of an internal combustion engine. The vehicle-power-generator control apparatus includes a boost control unit having a function of making a magnetic-field current control unit perform boost-on control or boost-off control, based on a command provided by an ECU through communication and a function of making the magnetic-field current control unit perform boost-on control or boost-off control, based on at least one of a rotation speed of an internal combustion engine and a temperature of a vehicle power generator.

Abstract: A vehicle traveling control apparatus includes a detector that detects an accelerator operation amount by a driver, a determiner that determines, based on a driving condition, whether a driving mode is currently a first mode in which a vehicle is caused to travel autonomously along a target travel path or a second mode in which the driver performs driving operation, a calculator that calculates a continuation time of the first mode when the driving mode is the first mode, a first setting unit that variably sets a characteristic of a target acceleration for the detected accelerator operation amount based on the calculated continuation time, and a second setting unit that, when the driving mode has transitioned from the first mode to the second mode, sets the target acceleration for the detected accelerator operation amount by referring to the set characteristic of the target acceleration for the accelerator operation amount.

Abstract: A method and a device for regulating the pressure of the combustion gas and/or exhaust gas of a machine, in particular an internal combustion engine. The combustion gas is supplied to the machine via a supply line and is discharged via an exhaust gas line, and the supply line and/or the exhaust gas line has a regulating device, the regulating device delimiting a pressure-regulated section of the supply line and/or the exhaust gas line, and wherein the pressure in each pressure-regulated section is measured at more than one point.

Abstract: A system and method for an electronic cruise control used to supplement electronic control units or vehicles for enhanced or additional cruise control integration. The electronic cruise control is designed to be updated easily by the end user or system to adjust the speed of a vehicle such as a motorcycle whereby the electronic cruise system sends a control signal to rotate an existing throttle to maintain the motorcycle's speed whereby the throttle grip position will always reference the speed of the motorcycle.

Abstract: A vehicle control apparatus to be mounted on a vehicle including an engine includes an electric motor, an electricity storage device, and a motor controller. The electric motor is coupled to the engine and generates motor power. The electricity storage device is coupled to the electric motor through a power supply cable. The motor controller causes execution of an assistance mode. The assistance mode includes controlling the electric motor to a powering state to transmit the motor power to the engine in operation. The motor controller permits the execution of the assistance mode on the condition that a rotation speed of the electric motor is lower than a threshold. The motor controller prohibits the execution of the assistance mode on the condition that the rotation speed of the electric motor is higher than the threshold.

Abstract: A motor torque control method for a motor-driven vehicle is carried out when a vehicle reduces its speed to a low speed or is in a stopped state, gear backlash and torsion of a drivetrain are minimized, and thus impact on the drivetrain which may occur during starting or restarting of a vehicle is minimized. The motor control method includes determining whether vehicle speed is in a speed reducing state less than a set vehicle speed or in a stopped state; determining a required torque command, an anti-jerk torque, and an additional drivetrain arrangement torque for removing drivetrain backlash based on vehicle operation state information when the speed reducing state or the stopped state is determined; and determining a motor torque command by using the required torque command, the anti-jerk torque, and the drivetrain arrangement torque.

Abstract: A hybrid vehicle includes an engine, a first motor, a planetary, the first motor, and a drive shaft, such that the first motor, the engine, and the drive shaft are arranged in this order in a collinear diagram, a second motor configured to be connected to the drive shaft, a power storage device configured to exchange an electric power with the first motor and the second motor. A braking force is applied to a vehicle by motoring the engine, in which fuel injection is stopped, by the first motor and/or regenerative driving of the second motor, when an accelerator is not operated. Motoring of the engine, in which fuel injection is stopped, by the first motor is limited, in a case where a deposition amount of particulate matter deposited on the filter is equal to or higher than a predetermined amount, when an accelerator is not operated.

Abstract: Methods and systems are provided for adjusting driver demand wheel torque of a vehicle. The driver demand wheel torque may be adjusted as a function of accelerator pedal position. In particular, at low accelerator pedal positions, a lead-in region of an accelerator pedal position to driver demand wheel torque relationship is adjustable responsive to vehicle operation conditions so that “dead pedal” feel may be avoided.

Abstract: Systems and methods for providing charge to an energy storage system of a vehicle are provided. The method may include receiving, by a vehicle control system, an indication that a vehicle is coasting, slowing, and/or braking. Based on the received indication, engaging, by the vehicle control system, an electric motor coupled to an internal combustion engine to generate electric charge and provide the generated electric charge to the energy storage system, and while engaging the electric motor to generate electric charge, deactivating, by the vehicle control system, a cylinder of the internal combustion engine by maintaining an inlet valve of the cylinder and an exhaust valve the cylinder in a constant position, such as a closed position. In some instances, the inlet valve and exhaust valve may be maintained in an open state to further slow the vehicle.

Abstract: A control device for an automatic transmission includes a traveling drive source, an automatic transmission, an AT controller, and a traveling drive source controller. The AT controller is configured to execute shifting by changeover of friction elements upon receiving a shift request. The traveling drive source controller is configured to execute torque limit control of the traveling drive source when a request for limiting a torque by an upper limit torque is input from the AT controller. The AT controller has an upper limit torque change processing unit configured to change the upper limit torque from a low gear upper limit torque to a high gear upper limit torque when auto-upshift is executed. The upper limit torque change processing unit is configured to raise the upper limit torque using a prescribed gradient during an inertia phase when the inertia phase is started with the auto-upshift.

Abstract: A method for cold engine starting in a pedal-start vehicle that comprises determining an ICE temperature value of an internal combustion engine of the vehicle upon starting the engine via depression of an accelerator, then comparing the ICE temperature value to a predetermined ICE temperature threshold value. Thereafter, when the ICE temperature value is below a predetermined ICE threshold value, controlling operation of the engine such that an RPM of the internal combustion engine remains within a predetermined idle RPM range for a predetermined amount of time, regardless of throttle control commands from the accelerator pedal of the vehicle, or when the ICE temperature value is equal to or greater than the predetermined ICE threshold value, or controlling operation of the internal combustion engine in accordance with the throttle control commands from the accelerator pedal.

Abstract: In general, the subject matter described in this disclosure can be embodied in methods, systems, and program products for performing vehicle control. Multiple target rotation rates for a vehicle shaft may be identified. A first actual rotation rate may be determined to exceed a first target rotation rate. In response, a computing system may send a first signal in order to cause a first component of a vehicle to limit the rate of rotation of the vehicle shaft. A second actual rotation rate may be determined to be below a second target rotation rate. In response, the computing system may send a second signal in order to cause the first component of the vehicle or a second component of the vehicle to increase the rate of rotation of the vehicle shaft.

Abstract: A method of operating a rotary engine including a rotor engaged to a shaft and rotationally received in a housing to define a plurality of working chambers of variable volume, including delivering a pilot quantity of fuel into a pilot cavity in successive communication with the working chambers, igniting the pilot quantity of fuel within the pilot cavity, and delivering a main quantity of fuel into the working chambers downstream of the successive communication of the pilot cavity with the working chambers, where at least one of the pilot quantity and the main quantity is varied between successive rotations of the shaft.

Abstract: 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. At least one monitoring window is assigned to the active profile. The aim of the invention is to allow strict exhaust gas regulations to be met in particular during real driving operations while simultaneously allowing a low fuel consumption. This is achieved in that at least one main monitoring window of the driving profile and a sub-monitoring window (F2) with a starting point and an end point are defined within a driving profile or test cycle.

Abstract: A method of diagnosing a fault of a timer for monitoring an engine off time is capable of accurately determining whether a timer that monitors an engine off time between a previous start off time and a next start on time of an engine has an error by using an engine coolant temperature, an engine oil temperature, a fuel tank pressure, a fuel tank temperature, and an outside air temperature.

Abstract: System and method for detecting driving behavior include a method including sampling, at a preset time interval, acceleration data of a vehicle generated by an accelerometer along a longitudinal direction of the vehicle. The accelerometer is mounted on the vehicle. The method also includes determining an average acceleration along the longitudinal direction by averaging the sampled acceleration data over a first preset time period. The average acceleration is represented by a magnitude and a direction. The method further includes when the magnitude of the average acceleration is greater than a first preset magnitude, determining an aggressive driving behavior has occurred.

Abstract: An ignition device for an internal combustion engine, having a housing in which a crankshaft sensor is accommodated for detecting the rotational speed and/or the position of a crankshaft, which is in particular provided with a toothed position sensor and in which at least one ignition transformer with a primary winding is accommodated, and a secondary winding for generating a spark for the internal combustion engine is accommodated, wherein a number of input ports, in particular for the connection of an electrical energy source for supplying the or each ignition transformer and/or for supplying sensor and/or control signals, and in which a plurality of output ports, in particular for connecting at least one spark plug and/or for emitting control signals, are provided.

Abstract: A method for adjusting driveline torque output of a vehicle is described. In one example, driveline output torque of a vehicle is decreased via switching from a first curve of a transfer function to a second curve of the transfer function, and then adjusting driveline output responsive to the second curve of the transfer function.

Abstract: A method of performing an operation in a wellbore includes performing the operation in the wellbore from a rig; and, while performing the operation, repeatedly: inputting one or more predicted values from a model of the wellbore; inputting one or more measured parameters from one or more sensors of the rig; calculating a deviation of each measured parameter from a respective predicted value; applying a weighting factor to each calculated deviation to obtain a respective alert level; calculating a rate of change of each measured parameter from a parameter previously measured by the respective sensor; applying a weighting factor to each calculated rate of change to obtain a respective alert level; and adding the alert levels and dividing the sum thereof by a maximum alert level to obtain a stuck pipe risk.

Abstract: A method and apparatus to predict and enable control of misfire that influences combustion cyclic variation and COV of IMEP in spark-ignited (SI) engine. The method includes obtaining engine data and determining temperature and pressure within a cylinder in response to engine data; determining crank angle resolved flame velocity evolution based on the engine data; comparing the crank angle resolved flame velocity to predetermined turbulent combustion regime data to determine a misfire occurrence; and updating a misfire occurrence indicator and outputting a control signal when the misfire occurrence indicator is greater than a predetermined limit, the control signal being capable of adjusting any engine actuators, such as external ignition source, of the spark-ignited engine on a cycle to cycle basis. The method and apparatus further includes correlating the crank angle resolved flame velocity to combustion phasing when the misfire occurrence indicator is less than the predetermined limit.

Abstract: A method of operating an internal combustion engine, in particular a gas engine, comprising at least one combustion chamber to which a charge air is fed with a variable charge pressure and/or a variable amount of charge air, wherein a cylinder pressure value is ascertained from at least one measurement value of a sensor arranged in the at least one combustion chamber, wherein the cylinder pressure value is regulated by altering the charge pressure and/or by altering the amount of charge air as a setting value or values to a cylinder pressure target value, wherein the cylinder pressure target value is selected in dependence on a power of the internal combustion engine.

Abstract: An engine control apparatus and an engine control method are provided. The engine control apparatus includes an accelerator pedal position sensor that measures a position of an accelerator pedal in response to an operation of the accelerator pedal. Additionally, a vehicle controller verifies whether a driver demand torque is equal to or greater than a current engine torque when the position of the accelerator pedal is deviated from a reference position while an engine is operated in a part load mode and determines whether to permit a transition of an engine mode of the engine to a full load mode. An engine controller then transitions the engine mode to the full load mode from the part load mode in response to a control of the vehicle controller.

Abstract: When an inertia phase has started while torque phase control is being executed, the torque phase control is ended, a target torque capacity of an engaging element in inertia phase control is corrected on the basis of a difference between the target torque capacity of the engaging element at the time when the inertia phase has started and the target torque capacity of the engaging element at the time when the torque phase control has completed (or a difference between the target torque capacity of the engaging element at the time when the inertia phase has started and the target torque capacity of the engaging element, which is set at the time when the inertia phase control has started), and the inertia phase control is started.

Abstract: Methods and systems are provided for mitigating excessive exhaust pressures in an engine. In one example, a method may include adjusting an intake throttle responsive to exhaust pressure upstream of an exhaust turbine being higher than a threshold without reducing boost level. In this way, boost pressures may be maintained while reducing exhaust pressures.

Abstract: Various systems and methods are described for controlling pre-ignition in a boosted engine in a newly manufactured vehicle. One method comprises, during a pre-delivery phase of the vehicle, operating the boosted engine in a pre-delivery calibration with a first, higher enrichment, in response to a pre-ignition event. The pre-delivery calibration is deactivated during a post-delivery phase and the boosted engine is operated with a second, lower enrichment in response to a pre-ignition event.

Abstract: A variety of methods, diagnostic modules and other arrangements for detecting air induction faults during operation of an internal combustion engine are described. In some embodiments, the intake manifold pressure is monitored with the intake pressure being read for each induction opportunity. Induction faults may be detected based at least in part on a comparison of the manifold pressure readings for sequential induction opportunities. In some embodiments, an induction fault is identified when the difference between the manifold pressure associated with an induction opportunity and the immediately preceding induction opportunity exceeds an induction fault threshold.

Abstract: A powertrain assembly has multiple torque actuators. The assembly includes a first controller configured to control a first torque actuator and a second controller configured to control a second torque actuator. The first controller is configured to receive a signal from an input sensor and convert the signal into a torque demand. The second controller is configured to receive the torque demand from the first controller and determine respective optimal torque allocations for the first and second torque actuators based on the torque demand and a plurality of optimization factors. The first controller includes a processor and tangible, non-transitory memory on which is recorded instructions for executing a method of controlling the multiple torque actuators across the at least two controllers via a dynamic look-up table. The dynamic look-up table is populated by a plurality of stored torque production allocation values based on a respective plurality of torque requests.

Abstract: The present disclosure provides a technology of determining an engine friction torque even when idling of an engine is not performed, by providing a certain engine Revolutions per Minute (RPM) in stop state of the engine using Hybrid Starter & Generator (HSG) connected to an engine pulley. The present disclosure provides a technology of determining an accurate engine friction torque using a torque provided from the outside of an engine instead of a torque generated the engine itself.

Abstract: Methods and systems are provided for adjusting engine operation based on wirelessly received weather data in conjunction with engine sensor outputs. In one example, a method may comprise receiving a first measurement of a weather parameter from one or more engine sensors and a second measurement of the weather parameter from weather data, the weather data provided by a wireless weather service. The method may further comprise determining accuracies for the first and second measurements, generating an estimate of the weather parameter based on the accuracies of the first and second measurements, and adjusting at least one engine operating parameter based on the generated estimate.

Abstract: A method for determining a measure of energy utilization during operation of a vehicle (100) which has a first power source (101) for generating a first motive force for propulsion of the vehicle (100) in a first direction of travel, and has at least one first brake system which acts against movement of the vehicle (100) in the first direction of travel. For a first period of time when demand for motive force from the first power source is interrupted, estimating energy consumption during operation of the vehicle (100) without demanding brake force from the first brake system, and using the estimated energy consumption during operation of the vehicle (100), without demanding brake force from the first brake system, as a basis for determining a measure of energy utilization during operation of the vehicle (100).

Abstract: A variety of methods and arrangements are described for controlling transitions between firing fractions during skip fire operation of an engine in order to help reduce undesirable NVH consequences and otherwise smooth the transitions. In general, both feed forward and feedback control are utilized in the determination of the firing fractions during transitions such that the resulting changes in the firing fraction better track cylinder air charge changing dynamics associated with the transition.

Abstract: A fuel injection control apparatus of a four cycle engine having six cylinders comprises: a crank angle detection device for detecting the crank angle of the four cycle engine; a first computation device for computing the quantity of fuel, which is injected in a predetermined stroke of a four stroke cycle, at a first computation timing; a second computation device for computing the quantity of fuel, which is injected one stroke before the predetermined stroke, at a second computation timing 240 degrees ahead of the crank angle of the first computation timing; and a third computation device for computing the quantity of fuel, which is injected two strokes before the predetermined stroke, at a third computation timing 120 degrees ahead of the crank angle of the second computation timing. The fuel injection control apparatus is adapted to decrease interruptions by computations for fuel injection control in the six cylinder engine, and reduce control load.

Abstract: A method for operating an exhaust gas treatment device having at least one reservoir for a reducing agent and at least one delivery device for a reducing agent, includes at least checking a filling level of the at least one reservoir, checking a current exhaust gas mass flow, and delivering reducing agent if the filling level of the at least one reservoir is below a minimum filling level and the exhaust gas mass flow is in a low-load range. A motor vehicle having the exhaust gas treatment device is also provided.

Abstract: A work vehicle includes: a hydraulic pump driven by an engine; a rotational speed detection unit that detects an actual rotational speed of the engine; an exhaust gas purification device that purifies nitrogen oxide in exhaust gas discharged from the engine using a reducing agent solution stored in a reducing agent tank; a torque control unit that decreases output torque of the engine according to decrease of a detected remaining amount of the reducing agent solution; and a storage device that stores a threshold value not less than an engine rotational speed at which the hydraulic pump starts discharge, wherein when the actual rotational speed of the engine is not more than the threshold value, the torque control unit does not decrease the output torque of the engine regardless of the remaining amount of the reducing agent solution detected by the remaining amount detection device.

Abstract: Methods and systems are provided for adjusting a fuel injection split between a direct injection and a port injection based on engine vacuum demand. When more intake manifold vacuum is required, relatively more direct injection is used to take advantage of the associated throttling for generating vacuum. The vacuum may then be used for canister purging, crankcase ventilation, or actuating an engine vacuum consumption device.

Abstract: A power system is disclosed for use with a mobile machine having a work tool. The power system may have an engine, a first input device configured to generate a first signal indicative of an operator-desired output of the engine, a second input device configured to generate a second signal indicative of an operator-desired movement of the work tool, and a controller in communication with the engine, the first input device, and the second input device. The controller may be configured to adjust fueling of the engine based on the first signal and based on a desired speed of the engine during a first mode of operation, and to adjust fueling of the engine based on the first signal and a desired torque of the mobile machine during a second mode of operation. The controller may be further configured to selectively switch operation of the machine between the first and second modes based on the second signal.

Abstract: A traveling stop control device for a transport vehicle includes: a torque command value setting module that sets a torque command value for the transport vehicle based on a target speed and an actual speed of the transport vehicle; a threshold value setting module that sets an upper limit threshold value for the torque command value based on information regarding the state of the transport vehicle; and a traveling stop determination module that determines the traveling stop of the transport vehicle. The traveling stop determination module determines the traveling stop of the transfer vehicle on condition that the torque command value exceeds the upper limit threshold value and that the actual speed of the transport vehicle is zero or close to zero.

Abstract: An request controller for controlling requests of a processing unit. The request controller may include an request controller input for receiving an request and an request processing unit connected to the request controller input. The request may request to switch a context of said processing unit or to switch the processing unit from a current an operation to another operation. The request processing unit may decide on the request based on a decision criterion. An request controller output may be connected to the request processing unit, for outputting information about at least granted request. The request processing unit may include a control logic unit including: a state input for receiving information about a current state of a system including the processing unit; and a request input for receiving information about a received request.

Abstract: An industrial vehicle includes an accelerator, an accelerator opening sensor which detects an opening of the accelerator, a loading unit, an engine and a torque restriction releasing unit. When the torque restriction releasing unit is set in an Eco-mode in which torque of the engine is restricted, if the opening of the accelerator detected by the accelerator opening sensor is a first predetermined value or greater and at least one of conditions that a speed of the vehicle is a second predetermined value or greater and that the loading unit is in a lifting operation, is satisfied and such conditions of the accelerator and the vehicle speed and/or lifting operation are continued for a predetermined period of time, the torque restriction releasing unit releases the torque restriction.

Abstract: An adaption method of an injector of an internal combustion engine, in which an actually injected fuel quantity is adapted to a target injection quantity, may include: actuating the injector using a test injection pulse in at least one segment of an injection cycle; detecting a change in the rotational speed signal due to the test injection pulse in the segment associated with the test injection pulse; and correcting the injected fuel quantity based on the detected change in the rotational speed signal, wherein the method is performed during a normal operating state of the internal combustion engine.

Abstract: A safety system for a boat includes a base unit securable to the boat and operably connected to one or more of the boat steering, engine and throttle controls. The base unit comprises a radio-frequency identification (RFID) reader and speed measuring means. The safety system also includes a portable unit securable to a person on the boat, with the portable unit comprising a radio-frequency identification (RFID) transmitter. The RFID reader and RFID transmitter are adapted to wirelessly communicate with one another when the portable unit is within a predetermined range of the base unit. There is also described a method of controlling a boat.

Abstract: A cruise control system for motor vehicles controls the vehicle speed to a preset desired speed. The cruise control system includes an operating unit for switching the cruise control on and off, an accelerator pedal, normally present in the vehicle, for activating the cruise control and for presetting the desired speed, and a brake pedal, also normally present in the vehicle, for interrupting the active cruise control. The operating unit is configured as a single operating element, during whose actuation the cruise control is switched on or off as a function of the actual operating condition of the cruise control system.

Abstract: A process in which a crank angle predicted stop position is calculated based on a target engine rotation speed reduction rate that is calculated in advance, a crank angle integration target value is calculated based on the crank angle predicted stop position, the target engine rotation speed reduction rate is recalculated based on the crank angle integration target value and an actual crank angle, a target crank angle is calculated based on the crank angle integration target value and the target engine rotation speed reduction rate, a crank deviation angle is calculated based on the target crank angle and the actual crank angle, a crank angle feedback torque of the motor is calculated based on the crank angle deviation angle, and a torque instruction value of the motor is calculated by adding the basic torque of the motor and the crank angle feedback torque when the engine is stopped.

Abstract: An integrated control apparatus for an engine system including an engine, a hydraulic pump driven by the engine, a control valve for controlling hydraulic oil discharged from the pump and a hydraulic actuator operated by the oil from the control valve. The apparatus includes a power mode determiner calculating an auto mode change index as a function of a first state value representing a work load of the pump and a second state value representing a work speed required by an operator to determine whether a current power mode of the pump is to be changed, a pump power determiner determining a power mode of the pump based on a result of whether the current power mode of the pump is to be changed, and an engine speed determiner determining an engine speed based on the result of whether the current power mode of the pump is to be changed.

Abstract: It is provided a control device of a hybrid vehicle having a damper device disposed in a power transmission path between an engine and an electric motor, the damper device having different torsion characteristics between torsion in positive direction in which drive power is transmitted from the engine toward the electric motor and torsion in negative direction in which drive power is transmitted from the electric motor toward the engine, the control device being configured to increase rotation of the engine with the electric motor to start the engine, the torsion characteristic in the negative direction of the damper device including a plurality of torsion characteristics having torsional rigidity varying depending on an angle of the torsion, and at start of the engine, the plurality of torsion characteristics being selectively used depending on an engine rotation speed to increase the engine rotation speed.