When a first type gear shift line is used as a gear shift line to change the gear ratio, and a predetermined condition including a condition that a state of charge of the power storage device is equal to or lower than a first ratio is satisfied, the control device changes the gear shift line to a second type gear shift line that recommends a lower speed gear ratio than the first type gear shift line.

A device for remotely changing the control of power generated by an internal combustion engine of a recreational vehicle driven by a driver controlling an accelerator pedal. The device includes a remote control, sending a signal for modulating the power and/or speed of the engine. The device comprises a system for measuring the position of the accelerator pedal, a system for receiving the signal for modulating the power and/or speed, a system for controlling the intake of gases into the engine, and an electronics module connected to the various systems, establishing rules for controlling the intake control system, depending on the position of the accelerator pedal and the received modulation signal.

A method for operating a drive-train of a vehicle, such as a municipal or agricultural utility vehicle, having at least one drive machine, a vehicle transmission with at least two gears, at least one drive axle and at least one auxiliary power take-off. The method includes controlling or regulating a supply of normal power from the drive machine as a function of a normal torque characteristic. Depending on the operating situation, supplying additional power to the at least one drive axle and/or to the at least one auxiliary power take-off. The supplied additional power is controlled or regulated as a function of operating situation dependent torque characteristics which are called up as a function of the selected gear at the time.

An apparatus of controlling an engine including an electric supercharger includes: an engine to combust fuel to generate power; a drive motor to assist the power of the engine and selectively operate as a generator to generate electrical energy; a battery configured to supply electrical energy to the drive motor and to be charged by the electrical energy generated from the drive motor; a plurality of electric superchargers respectively installed in a plurality of intake lines through which an ambient air flows to be supplied to a combustion chamber of the engine; and a controller that based on a determined driving tendency, adjusts a target speed of the electric superchargers of the plurality of electric superchargers, determine a driving mode of the electric superchargers, limits a maximum output of the engine, and variably adjusts a SOC electricity-generating region where the engine charges the battery.

A method for operating a hybrid vehicle includes, determining a shift element to be utilized for decoupling of slip and a decoupling differential speed depending on whether a starting process is carried out, depending on whether the transmission is transferred from a torque-transmitting state into a non-torque-transmitting state or from a non-torque-transmitting state into a torque-transmitting state, depending on whether a gear ratio change is carried out, and depending on whether the hybrid vehicle includes a hydrodynamic starting component.

The invention relates to a method for propelling a vehicle comprising a first power source being an internal combustion engine and a second power source comprising at least one electrical machine. The vehicle is configured to be selectively driven according to a first mode and a second mode, wherein said second mode is prioritized more in relation to fuel efficiency of said vehicle than said first mode. When a maximum power for propelling said vehicle is requested, power delivered by said first power source and said second power source is controlled such that the total power delivered by said first and said second power source exceeds the maximum deliverable power of said first power source. The total power delivered by said first and said second power source is allowed to exceed the maximum deliverable power of said first power source when said vehicle is driven according to said second mode.

In a hybrid vehicle, when a required driving force is equal to or smaller than a first upper limit driving force, a control device sets a target driving force to the required driving force. When the required driving force is larger than the first upper limit driving force, the control device sets a target compensation power of a power storage device, based on a difference between the required driving force and the first upper limit driving force. The control device sets a second upper limit driving force of a driveshaft when an upper limit power is output from an engine and the power storage device is charged or discharged with a power based on the target compensation power. The control device sets a target driving force to the smaller between the required driving force and the second upper limit driving force. This configuration suppresses deterioration of the driver's drive feeling.

A vehicle driving apparatus includes: an engine; a fluid transmission device; first and second rotary electric machines; an output shaft for receiving a power transmitted through a first power transmission path and outputting the power to one of a pair of front wheels and a pair of rear wheels; and a control device for controlling an engine operation point by adjusting an electrical path amount between the first and second rotary electric machines. The second rotary electric machine outputs the power to the other of the pair of front wheels and the pair of rear wheels, through a second power transmission path. The control device obtains a target electrical path amount enabling the engine operation point to become a target operation point, and causes a speed change device provided in the second power transmission path to establish a gear ratio enabling the target electrical path amount to be attainable.

A vehicle driving apparatus includes: an engine; a first rotary electric machine; first and second output shafts; a power distribution device for distributing a power between the first and second output shafts; and a control device for controlling an electric-power generation torque of a second rotary electric machine such that a power distribution ratio between the first and second output shafts becomes a target distribution ratio, and controlling a total torque of the engine and the first rotary electric machine such that a requested drive torque is obtained. The control device executes an electric-power consuming control to supply at least a part of a generated electric power generated by the second rotary electric machine, to the first rotary electric machine without via a power storage device, and to drive the first rotary electric machine, such that an operation state of the engine is brought close to a fuel-economy optimum state.

Engine combustion mode-switching transitions are controlled through a coordination control of an electric machine and a multi-combustion mode engine coupled to each other with a hybrid propulsion system by following predetermined combustion mode-switching strategies and control algorithms.