A computing device-implemented method includes receiving data representative of one or more operational parameters for a vehicle, calculating the fuel rate required for an internal combustion engine of the vehicle to respond to the operational parameters, determining if the required fuel rate exceeds a threshold which would cause a state change in the performance of the internal combustion engine, if the required fuel rate exceeds the threshold, calculating an amount of assistance required for an electric hybrid traction motor to provide to a drivetrain of the vehicle to implement the received operational parameters of the vehicle, and providing the amount of assistance to the drivetrain of the vehicle, thereby preventing the state change in the performance of the internal combustion engine.

The invention relates to a control device (1) for a vehicle having at least two drive units, comprising a first interface (3) which is designed to record a target torque (4), and comprising a computer device (5) which is designed to cyclically minimise an evaluation function (6) for the operation of the at least two drive units, in order to determine a torque distribution (11) between the at least two drive units, wherein a boundary condition (7) of the evaluation function (6) is the generation of the target torque (4), wherein the evaluation function (6) has a penalty term (8), which evidences a change in the torque of one of the at least two drive units with an evaluation penalty. The invention also relates to a corresponding drive train and a corresponding method.

Systems and methods for improving fuel economy in vehicles such as Class 8 trucks are provided. In some embodiments, signals indicating states of the powertrain are collected and used to generate fuel rate optimization values. Fuel rate optimization values may indicate a difference between optimum fuel flow rates and actual fuel flow rates during a vehicle drive cycle. Recorded fuel rate optimization values may be used to compare different vehicle configurations during testing, and may also be used to evaluate vehicle performance during real-world operation.

A method for performing driver performance comparisons is enabled, e.g., via in-vehicle capture of performance data from multiple vehicles or drivers. The performance comparisons are enabled via a geohash-based path analysis.

A hybrid vehicle includes a vehicle control device to perform a traveling control so as to allow switching between an HV traveling in which the hybrid vehicle travels while an engine works and an EV traveling in which the hybrid vehicle travels while working of the engine is stopped, and an engine control device to execute a filter regeneration control that is an engine control for removing particulate matter deposited in a filter. The engine control device adopts satisfaction of a predetermined first condition, as a requirement for execution of the filter regeneration control, when the number of times of start of the engine after vehicle activation is one, and adopts satisfaction of a second condition, which is satisfied more easily than the first condition, as a requirement for execution of the filter regeneration control, when the number of times of the start is two or more.

A system includes an internal combustion engine including a crankshaft, a transmission including a transmission shaft, an axle, and a first electric machine rotatably coupled at least one of the crankshaft, the transmission shaft, and the axle. The first electric machine is configured to deliver rotational torque, and to generate electrical energy. The system includes an electrically-assisted turbomachine including a second electric machine configured to deliver rotational torque, and to generate electrical energy. The system includes a hybrid propulsion traction battery electrically coupled to the first and second electric machines. The hybrid propulsion traction battery is configured to deliver electrical energy to the first electric machine, and to receive electrical energy from the first and second electric machines. The system includes an electronic control unit configured to control electrical energy supplied to the first electric machine, and to control electrical energy supplied to the hybrid propulsion traction battery.

The invention relates to a control device (1) for a vehicle having at least two drive units, comprising a first interface (3) which is designed to record a target torque (4), and comprising a computer device (5) which is designed to cyclically minimise an evaluation function (6) for the operation of the at least two drive units, in order to determine a torque distribution (11) between the at least two drive units, wherein a boundary condition (7) of the evaluation function (6) is the generation of the target torque (4), wherein the evaluation function (6) has a penalty term (8), which evidences a change in the torque of one of the at least two drive units with an evaluation penalty. The invention also relates to a corresponding drive train and a corresponding method.

A method of determining an amount of fuel wasted by a vehicle due to sub-optimal performance of at least one component of the vehicle includes receiving information about operation of the vehicle from at least one sensor positioned on the vehicle, categorizing, with a processor, a fuel use by the vehicle as a normal fuel use or a wasted fuel use due to the at least one component performing at a sub-optimal level by comparing the received information to expected information from the at least one sensor when the vehicle is operating at optimal performance, and determining, with the processor, the amount of fuel wasted due to the at least one component operating at the sub-optimal level based on categorized fuel use.

An exhaust-gas purification system and method controls an internal combustion engine having at least one cylinder-piston unit operating in a overrun (drag) mode in which piston motion is induced by motion of an output shaft of a drive output unit associated with the internal combustion engine. A control device controls, for each of cylinder-piston unit, an intake fluid, an exhaust valve and fuel injection to heat an exhaust emission control device by deactivating fuel injection, passing the substantially fuel-free intake fluid into the cylinder, compressing and thereby heating the fluid in the cylinder, and passing the heated outlet fluid to the exhaust emission control device. The control device may control the amount of heating based on measurement and/or use of a temperature model of the exhaust emission control device.

A method of determining an amount of fuel wasted by a vehicle due to sub-optimal performance of at least one component of the vehicle includes receiving information about operation of the vehicle from at least one sensor positioned on the vehicle, categorizing, with a processor, a fuel use by the vehicle as a normal fuel use or a wasted fuel use due to the at least one component performing at a sub-optimal level by comparing the received information to expected information from the at least one sensor when the vehicle is operating at optimal performance, and determining, with the processor, the amount of fuel wasted due to the at least one component operating at the sub-optimal level based on categorized fuel use.