An agricultural system (102) includes a drivetrain (106) with an engine (202), and an electric machine (208) configured to be operated in a motor mode or a generator mode, and a control unit (110) configured to execute a method including determining a maximum total system efficiency of the…
A transport vehicle () comprising:—a heat engine () operable at a number of revolutions varying between a minimum number and a maximum number;—an adjusting device () configured to adjust an infeed flow of air-fuel mixture to the heat engine ();—at least one on-board memory unit () in which an…
A method for operating a motor vehicle with an internal combustion engine, comprising a combustion engine and an exhaust line with an exhaust aftertreatment system. At least one environmental emission of an exhaust component or multiple exhaust components, contained in the exhaust gas generated by…
The split cycle engine of the present disclosure comprises a compression cylinder () accommodating a compression piston (), a combustion cylinder () accommodating a combustion piston (), a recuperator () arranged to exchange heat between exhaust fluid () from the combustion cylinder and working…
A method and apparatus for controlling a vehicle are disclosed. The method comprises acquiring an acceleration of a front wheel and a rear wheel, determining that the front wheel is passing a bump of a road in response to determining that the acceleration of the front wheel is outside an…
Methods and systems are provided for estimation of a road roughness index (RRI) and adjusting vehicle operation based on the metric. In one example, a method may include estimating the RRI as a function of a pitch energy and a roll energy of the vehicle travelling on the road. In response to the…
A method to control a road vehicle during a slip of the drive wheels, which are caused to rotate by an internal combustion engine provided with a plurality of cylinders arranged in two banks, and with a plurality of fuel injectors each injecting fuel into a corresponding cylinder. The control…
A system and approach for development of setpoints for a controller of a powertrain system. The controller may be parameterized as a function of setpoints to provide performance variables that are considered acceptable by a user or operator for current operating conditions of the engine or…
An internal combustion engine 1 at a standstill of a vehicle after cold starting can switch its combustion mode to a homogenous combustion mode or a stratified combustion mode. An operation range of the stratified combustion at the standstill of the vehicle after cold starting is expanded relative…
An engine control system (50) for a vehicle (1), which is configured to control an engine (14) using a plurality of control modes, comprising a controller (19) configured to selectively set a first control mode or a second control mode and to control the engine (14) using the set control mode, the…
An internal combustion engine controller for automobiles which realizes torque increasing performance and exhaust gas purifying performance in a well-balanced manner even when a high-response torque increase is demanded in uniform charge stoichiometric combustion which is operated at a value close…
The present invention relates to a control system and to a control method which are applied to a motor vehicle including an internal combustion engine and a motor connected to an output shaft of the internal combustion engine, and which is operable to perform an automatic start/stop control of the…
The electronic control unit (50) sets an initial value of an inertia torque equivalent flow rate Qmg as an air flow equivalent to an inertia torque that acts on rotational elements related to a crankshaft (26), and a diminishing rate thereof, based on a shift position SP and coolant temperature Tw…
A method and system may be provided to perform a process for controlling power provided by an engine (120) in a machine (100). In one embodiment of the invention, the process may include determining a first power value reflecting a predetermined first power to be provided by the engine (120) to a…
The present invention is directed to a method and device for operating an engine (1) of a motor vehicle. Firstly, driving condition parameters of the engine (1) and/or the motor vehicle are captured over a predetermined period of time. After that the probabilities of parameters for the future…
A method for obtaining an accurate cylinder air-charge estimate is presented. First, a sensor-based powertrain. torque estimate is obtained. Next, a torque converter-based powertrain torque estimate is obtained when the torque converter clutch is unlocked. The two estimates are compared, and if…
A method and apparatus for determining a volatility of a fuel sample. A fuel sample is collected in a container (22) and heated for a time period using a heater device (24). Periodically during the heating, the capacitance of the fuel sample and the temperature of the heater device (24) are…