A hybrid electric vehicle includes an engine and an electric machine, both capable of providing propulsion power. A clutch is configured to selectively couple the engine to the electric machine. At times, the vehicle may be subject to excessive loads, such as a large amount of weight in the vehicle or the vehicle towing another object. At least one controller is programmed to engage the clutch and start the engine in response to a load of the vehicle exceeding a predetermined threshold and a release of the brake pedal while the vehicle is stopped and in drive. This increases available engine torque prior to vehicle launch in anticipation of an upcoming acceleration demand.

A method for operating a motor vehicle is disclosed. The motor vehicle is provided with a hybrid drive device having an electric machine, an internal combustion engine and a particle filter associated with the internal combustion engine, wherein the internal combustion engine is operated temporarily for regenerating the particle filter. In a first operating mode, the regeneration is only started when it is determined by a navigation device that an electric driving region to be driven through lies ahead, in which region an operation of the internal combustion engine and/or the regeneration of the particle filter is not desired.

A motive power system includes a first energy storage, a second energy storage, an actuator, an internal combustion engine, a power transmission circuit, and circuitry. At least the actuator drives a load in a charge-depleting mode using a first energy supplied from the first energy storage and/or the second energy storage according to a second charge rate. At least the internal combustion engine drives the load in a charge-sustaining mode using a second energy that is lower than the first energy and that is supplied to the actuator from the first energy storage and/or the second energy storage according to a first charge rate.

A system and method for adjusting a drivetrain comprising an e-axle on a vehicle comprises accessing route data and compressing the route data into a plurality of linearized segments. Each segment is determined by analyzing points along the route to determine when a set of route data points indicates an uphill, downhill, or flat segment. Using the segments, drivetrain configuration information for a vehicle and a weight of the vehicle, embodiments determine a performance plan that is tailored to the vehicle, including raising the e-axle to reduce rolling resistance on some segments and lowering the e-axle for some segments for increased power for acceleration, improved braking, or increased regenerative capabilities.

The invention relates to a controller (140) for a hybrid electric vehicle (HEV), the controller (140) being operable to control a HEV to assume a HEV mode of operation in which each of a plurality of actuators (121, 123) of a HEV is controlled to assume a prescribed operational state, the controller being configured to control a HEV to assume an operational mode responsive to data in respect of a route of a journey to be made by a HEV, a route comprising at least one route segment, the controller (140) being configured to determine a target state of charge of an energy storage device (150) of a HEV for each said at least one route segment being a state of charge of an energy storage device (150) that is to be achieved at the end of said at least one segment responsive to the data in respect of a route, the controller (140) being further configured to control the HEV to achieve the target state of charge at the end of said at least one segment.

Aspects of the present invention relate to a control system 208 and method for controlling energy management of a traction battery 200 of a hybrid electric vehicle 10, the traction battery 200 configured to power at least one traction motor 212 coupled to an electric-only axle 213 of the vehicle 10 to provide all-wheel drive, the control system 208 comprising one or more electronic controllers 300, the one or more electronic controllers 300 configured to: determine a change of terrain mode and/or type for the vehicle and/or determine an increase in loading of the vehicle 10; select an energy management control strategy for the traction battery 200 of the vehicle 10 in dependence on the determined change in terrain mode and/or type and/or the determined increase in loading of the vehicle 10, wherein the traction battery 200 is configured to supply power to the at least one traction motor 212 to provide torque to the electric-only axle 213 of the vehicle 10 to enable the vehicle 10 to operate in an all-wheel drive mode, wherein selecting an energy management control strategy of the vehicle 10 comprises at least one of: selecting or adjusting a charge sustain set point 30 for the traction battery 200; and changing energy generation to recharge the traction battery 200.

A vehicle includes a motor positioned between an engine and a driveline connected to a vehicle wheel, and a controller. The controller controls engine torque and maintains motor torque during wheel torque and driveline component torque reversals to limit a vehicle output torque rate of change through a lash region associated with a range of driveline torque ratios. A method of controlling a hybrid vehicle includes controlling engine torque to a specified profile and maintaining motor torque at a generally constant value during at least one of wheel torque and driveline component torque reversals to limit a vehicle output torque rate of change through a lash region associated with a range of driveline torque ratios.

The invention relates to a method for regulating a hybrid drive of a hybrid electric motor vehicle which has an electric energy store (HV), said method having the following steps: determining (S1) criteria for engaging the electric drive (EM1; EM1, EM2) and/or the internal combustion engine (VM) using an adjustable drive mode, wherein a part of a battery capacity of the electric energy store (HV) is reserved using a variable setting; and regulating (S2) the engagement of the electric drive (EM1; EM1, EM2) and/or the internal combustion engine (VM) of the hybrid electric motor vehicle using the determined criteria and the variable setting.

A method of determining an equivalence energy factor representing weighting applied between an infeed of energy of thermal origin and an infeed of energy of electrical origin, to minimize on an operating point overall energy consumption of a hybrid motor propulsion plant for an automotive vehicle including a heat engine and at least one electric motor powered by a battery. This factor is controlled in a discrete manner as a function of an instantaneous state of energy of the battery, and of an energy target, and as a function of the vehicle running conditions.

A power transmission device includes an input shaft, an output shaft, a gear mechanism, an energy-generating motor, a first clutch, and a locking device. The energy storage unit is configured to store the energy generated by the energy-generating motor. The gear mechanism includes a planetary gear mechanism, which includes a first rotation element, a second rotation element, and a third rotation element, which are mutually different. The first clutch is provided in the power transmission route between the engine and the first rotation element. The locking device locks or releases the second rotation element. The energy-generating motor is connected to the third rotation element. A controller locks the second rotation element, converges the rotation speeds of two rotation shafts in the first clutch to cause the first clutch to engage, and rotates the energy-generating motor using drive power from the engine to thereby accumulate energy in the energy storage unit.