The invention provides a range extension system including a range extension assembly, a fuel supply unit, and a second fuel storage device. The range extension assembly has a first fuel input portion and a second fuel input portion. The first fuel input portion is configured to receive a first fuel source. The second fuel input portion is configured to receive a second fuel source different from the first fuel source. The second fuel source and the first fuel source are mixed in the range extension assembly to generate an electrical output. The fuel supply unit is configured to provide the first fuel source to the first fuel input portion. The second fuel storage device is configured to store and provide the second fuel source to the second fuel input portion.

A hybrid vehicle control method for a hybrid vehicle having a drive motor, a battery supplying electric power to the drive motor, and an engine for power generation configured to supply electric power to the battery and the drive motor includes operating the engine at a higher engine rotation speed in an operating state in which a fuel consumption device that contributes to improved fuel consumption performance does not operate than in an operating state in which the fuel consumption device operates.

A hybrid drive device has an internal combustion engine, a clutch transmission which has at least one free partial transmission and a partial transmission connected to an electric machine with in each case a clutch, and at least one electric machine. In order to start the internal combustion engine, pulse energy is provided from an inertia of the clutch associated with the free partial transmission and/or a rotation in the free partial transmission.

In a hybrid electric vehicle and a control method thereof, a predicted travel route is acquired, required travel energy required for the hybrid electric vehicle to travel in the specific section in an EV drive mode is specified when the predicted travel route includes a specific section where the hybrid electric vehicle is supposed to travel in the EV drive mode, a desired value for the remaining capacity of the battery is set based on the specified required travel energy, a drive mode to be executed from a plurality of drive modes is determined based on the relationship between the actual remaining capacity of the battery and the desired value, until the hybrid electric vehicle enters the specific section. Switching between the EV and an HV drive modes is prohibited, regardless of the relationship, when a predetermined time has not elapsed since the last switching of the drive mode.

A control device for a hybrid vehicle is provided with a driving plan preparing part preparing a driving plan setting one or more via-points on a projected route from a starting point to a destination to divide the projected route into a plurality of driving routes and divide the driving routes further into pluralities of driving sections and setting which driving mode of an EV mode or HV mode to drive over in each driving section and with a driving mode switching part switching the driving modes according to a driving plan. The driving plan preparing part is configured to be able to prepare a driving plan setting the driving modes of all driving sections in at least one driving route to the EV mode.

Methods and systems are provided for regenerating a particulate filter positioned in an exhaust system of an engine of a vehicle. In one example, a method comprises obtaining a first air flow in an intake of the engine and obtaining a second air flow in the intake of the engine, where regeneration of the particulate filter is conducted in response to the first air flow differing from the second air flow by at least a threshold amount, where the first air flow and the second air flow comprise air flow routed from the exhaust system to the intake of the engine. In this way, the particulate filter may be regenerated under conditions where a loading state of the particulate filter is not known.

The invention concerns a method for operating a brake back-up system (8) of a motor vehicle (2), with the steps: (S100) Reading in operating data (BD) of the motor vehicle (2), (S200) Evaluating the read-in operating data (BD) to identify malfunctions of a braking system of the motor vehicle (2), and (S300) Providing at least one actuation signal (AS, AS′) to influence components of a drive train of the motor vehicle (2).

In start control for controlling an engine, a motor, and a clutch, a target throttle valve opening degree is set based on a rotational speed of the motor and a coolant temperature of the engine to control the engine such that the clutch is half-engaged to crank the engine by the motor, and fuel injection and ignition of the engine are started after a rotational speed difference between the rotational speed of the motor and a rotational speed of the engine becomes smaller than a threshold value and the clutch is engaged.

A switchable powertrain comprises at least four points of freedom. The switchable powertrain comprises a main gear set configured for gear ratio selection, the main gear set comprising main gears coupled to a main shaft and second gears coupled to a second shaft. An adapter comprises a first selective coupling configured to selectively couple to the main shaft, and a second selective coupling configured to selectively couple to the second shaft. A first torque source and a clutch are configured for selectively coupling or decoupling first torque to the main shaft. A second torque source is configured for selectively outputting second torque to the first selective coupling or to the second selective coupling.

A battery discharge limit control system is provided. The system includes a motor driven by receiving the power stored in a battery and a clutch connected to the rotary shaft of the motor. Additionally, an engine includes the rotary shaft connected to the rotary shaft of the motor through the clutch and a transmission changes the rotational speed of the rotary shaft of the motor or the engine based on the input of the shift stage instruction to output the rotational speed to a driving wheel of a vehicle. A controller opens the clutch and drives the motor in the reverse rotation, when the input of the shift stage instruction is a reverse shift stage.