A method for operating a road paver that is self-propelled and may be controlled via a machine controller. An internal combustion engine provides engine power for a hydraulic system and for a generator so as to generate a generator power for supplying at least one electrical screed plate heating system with electrical energy. The engine and generator power are changed via an engine controller and also a generator controller. Prior to and/or during the paving procedure, current measurements are performed on the current that is flowing between an electrical screed plate heating system, which is dimensioned in a frequency-independent manner, and the generator, in order to determine and ascertain a prevailing generator power that is drawn off at least by the electrical screed plate heating system.

Methods and systems are provided for estimating a drive train temperature for a journey. In one example, a method comprises requesting a vehicle operator to input one or more travel parameters for the journey, predicting travel parameters the vehicle operator omitted to input, and displaying an estimated fuel economy for the journey, where the estimated fuel economy is based on the estimated drive train temperature, which is based on the travel parameters.

A method for controlling a vehicle includes: receiving, by a controller, route data, wherein the route data is continuously updated while the vehicle is moving, and the vehicle includes a plurality of vehicle operating modes; receiving, by the controller, feature data, wherein the feature data is information about a plurality of features needed for each of the plurality of vehicle operating modes; determining, by the controller, a plurality of ranges for each of the plurality of vehicle operating modes, wherein each of the plurality of ranges is a function of the route data and the feature data for each of the plurality of vehicle operating modes; and commanding, by the controller, a user interface to display a list of range-mode combinations, wherein the list of range-mode combinations includes the plurality of ranges for each of the plurality of vehicle operating modes.

A method for operating a motor vehicle drivetrain having a transmission connected between a drive aggregate and a drive output, a Power Take-Off (PTO) that can be coupled to the drive aggregate on drive aggregate side to take up drive torque from the drive aggregate. In order to determine the torque taken up by the PTO, the transmission is first shifted to interrupt torque to the transmission output. Thereafter, a defined torque is delivered by the drive aggregate, at least with the PTO coupled to the drive aggregate, and, during this at defined time-points, rotational speeds of a shaft driven by the drive aggregate are determined and from this an angular acceleration of the shaft is determined. A first torque of the shaft is determined from the shaft angular acceleration while the PTO is coupled. Based on the first torque, the torque taken up by the PTO is determined.

To inhibit clutch engagement during an engine restart from affecting cooperative regenerative braking control and switching of braking in a hybrid vehicle having a P2 module onboard, a control system for the hybrid vehicle includes an engine, a motor, a K0 clutch, drive shafts, a hydraulic friction brake system, and a controller capable of performing cooperative regenerative braking control. When start of the engine is requested during the cooperative regenerative braking control, the controller performs a first process of transitioning to braking only by the frictional brake system, a second process of raising an engine revolution speed while engagement of the K0 clutch is initiated after completion of transitioning to the braking, and a third process of controlling the engine to resume operating at a timing after the engine revolution speed increases to match a motor revolution speed after the engagement of the K0 clutch is initiated.

A system comprises a generator and an engine coupled thereto. The engine is configured to provide mechanical power to the generator. A controller is coupled to the engine and the generator and is configured to compare an engine operating parameter value to a load demand value indicative of a load exerted by the generator on the engine. The controller determines that the engine operating parameter value fails to match the load demand value. The controller determines an engine operating parameter threshold value at which the engine operating parameter value failed to match the load demand value, and sets the engine operating parameter threshold value as a maximum allowable engine operating parameter value for the engine.

Methods and systems are provided for controlling a distribution between engine and motor torques for a hybrid electric vehicle operating in a creep mode of operation in response to an engine start request. In one example, responsive to a request to start an engine while a vehicle is being propelled at a predetermined wheel creep torque via an electric motor positioned downstream of a transmission and a torque converter, coordinating an electric motor torque and an engine torque in one of a first mode, second mode, or a third mode depending on whether the electric motor can continue to provide the predetermined wheel creep torque. In this way, engine idle speed may be minimized depending on vehicle operating conditions, which may improve fuel economy.

An electronic control unit to control an engine control module of an engine is disclosed. The electronic control unit may receive, from a load monitoring device, power command information associated with a load of an engine. The electronic control unit may determine, based on the power command information, a total power command of the engine. The electronic control unit may determine, based on the total power command, a target engine speed for the engine. The electronic control unit may cause an engine control module to control the engine to operate in association with the target engine speed.

The hybrid vehicle includes an engine, a motor, a battery, and map information. The hybrid vehicle also includes a control device that sets a drive route from a current location to a destination, creates a drive support plan that assigns one of drive modes including a CD mode and a CS mode to each of drive sections of the drive route, and performs drive support control. The control device generates read-ahead information that is required for creation of the drive support plan, based on road traffic information at every predetermined timing. On the other hand, the control device performs the drive support plan that is based on the read-ahead information generated immediately before a start of update of the map information, during the update of the map information by exterior communication.

There is provided a hybrid vehicle to create a drive support plan by taking into account an operating state of an air conditioning system. The hybrid vehicle has an engine, a motor, a battery, an air conditioning system configured to condition air in a passenger compartment, and a map information, and sets a drive route from the present location to the destination, and creates a drive support plan in which one of the drive modes including CD mode and CS mode is assigned to each drive section of the drive route to perform the drive support control. The drive support plan is created by taking into account the air conditioning power consumption consumed by the air conditioning system when the hybrid vehicle is driven a predetermined distance. Thus, it is possible to create a drive support plan taking into account the operating state of the air conditioning system.