A vehicle includes an engine, a motor generator, a battery, and an ECU, and is configured to selectively perform EV running and engine running. When requested power is smaller than reference power, ECU calculates an engine fuel consumption ratio h1 when the engine outputs power resulting from addition of optimal charging power for the battery to the requested power, and determines whether the engine fuel consumption ratio h1 is larger than an EV criterion line resulting from addition of a margin K to a battery equivalent fuel consumption ratio F. When the engine fuel consumption ratio h1 is larger than the EV criterion line, ECU selects EV running, and otherwise selects engine running. The ECU calculates the margin K by referring to an FK map which defines correspondence between the battery equivalent fuel consumption ratio F and the margin K with which an SOC is converged to a target range.

A vehicle can include throttle, braking, and steering systems. The vehicle can further include a computing system that obtains, from one or more sensors, data representing one or more of a velocity or an acceleration of the vehicle. The computing system can further determine an estimated weight of the vehicle based on the one or more of the velocity or the acceleration of the vehicle, and autonomously operate the throttle, braking, and steering systems of the vehicle based on the estimated weight of the vehicle.

An active vibration reduction control apparatus for a hybrid electric vehicle includes: a reference signal generator generating a reference signal and a first phase based on a first rotational angle of a first motor; a vibration extractor extracting a vibration signal from a second motor; a coefficient determiner determining a filter coefficient which minimizes a phase difference between the reference signal and the vibration signal; a phase determiner detecting a second phase which corresponds to the phase difference using a first speed signal of the first motor and the filter coefficient; a phase deviation amount detector detecting a third phase for compensating for a phase delay; and a synchronization signal generator generating an antiphase signal of a shape of an actual vibration in order to determine a compensating force of the first motor.

A computing system determines an estimated weight of a vehicle by measuring kinematic data of the vehicle, including at least one of a velocity or an acceleration of the vehicle. The computing system processes the data to determine an estimated weight of the vehicle. Based on the estimated weight of the vehicle, the computing system can autonomously operate the throttle, braking, and steering systems of the vehicle.

The present invention relates to a method for determining engine operation parameter values during and/or after a gear shift operation prior to performing said gear shift operation. The method comprises the steps of, prior to the gear shift operation: determining initial conditions comprising torque demand and engine speed and certain other engine operation parameter values; providing said initial conditions to an engine operation simulation model; providing a torque development course as well as an engine speed development course during the intended gear shift operation to said engine operation simulation model; and determining desired engine operation parameter values by means of said engine operation simulation model based upon the information thus provided to said engine operation simulation model.

Methods, systems, and devices related to a method of controlling an autonomous diesel-engine vehicle. In one example aspect, the method includes determining longitudinal dynamic response properties of the autonomous vehicle. A brake mode is selected for reducing a current speed of the autonomous vehicle to a lower speed, based on a threshold that is determined using the longitudinal dynamic response properties of the vehicle. When a rate of speed reduction is equal to or smaller than the threshold, the brake mode includes only an engine brake in which engine exhaust valve opening is adjusted for reducing the current speed. When the rate of speed reduction is greater than the threshold, the brake mode incudes a combination of the engine brake and the foundation brake.

It is determined whether fuel efficiency of a vehicle is improved by operating a first rotating machine to generate electricity to such an extent that an electrical path amount becomes a desired electrical path amount for controlling an operating point of an engine to a desired operating point and driving and operating a second rotating machine as a second power source, the electrical path amount being a magnitude of electric power in an electrical path through which the electric power is transferred between the first rotating machine and the second rotating machine. When the electronic control device determines that the fuel efficiency of the vehicle is improved, the first rotating machine is operated to generate electricity to such an extent that the electrical path amount becomes the desired electrical path amount and the second rotating machine is driven and operated as the second power source.

A hybrid vehicle includes: an engine; a rotating electric machine; a battery; and a controller that is configured to be capable of calculating a battery equivalent fuel efficiency. While the engine is in operation, the controller searches charge/discharge power to/from the battery at which a vehicle fuel consumption amount that is calculated in consideration of a fuel consumption amount in the engine and an equivalent fuel consumption amount that is determined by a product of the battery equivalent fuel efficiency and the charge/discharge power is minimum, and causes the engine to output a value that is calculated by adding the searched charge/discharge power to requested power from a user.

A method for operating a motor vehicle having an internal combustion engine. The internal combustion engine is started. A drive power requirement is ascertained. A takeoff delay for reaching a predetermined minimum temperature for an exhaust aftertreatment system is determined, the predetermined minimum temperature being a function of a setpoint internal combustion motor drive power that is to be provided by the internal combustion engine to meet the drive power requirement. After the takeoff delay elapses, a release signal for releasing a takeoff block is outputted. Provided is also a control unit and a motor vehicle.

A method and a control system for controlling movement of a vehicle to provide vehicle creep, the vehicle having an engine and an electric traction motor, and the control system having one or more controllers. The control system is configured to: while a torque path between the engine and a first set of vehicle wheels is disconnected, control the electric traction motor to provide tractive torque to a second set of vehicle wheels to automatically move the vehicle to provide electric vehicle creep. The electric vehicle creep is controlled by a mathematical model of engine creep torque that would be provided by the engine when the torque path between the engine and the first set of vehicle wheels is connected.