An ecological system for use in land or marine vehicles is provided, which uses wasted airmass making it to pass through two subsystems which allow lighten the load of the moving vehicle and generates electrical energy. Therefore, showing an economy in fuel, tires, and general maintenance savings, as well as a decrease of contaminants thrown to the environment.

An ecological system for use in land or marine vehicles is provided, which uses wasted airmass making it to pass through two subsystems which allow lighten the load of the moving vehicle and generates electrical energy. Therefore, showing an economy in fuel, tires, and general maintenance savings, as well as a decrease of contaminants thrown to the environment.

A method for performing rotational speed synchronisation of a first transmission component having a first initial rotational speed with a second transmission component having a second initial rotational speed, so that they rotate with the same final rotational speed during a gear switch from an initial driving gear to a final driving gear in a stepped gear transmission for a hybrid electric or electric drive train having an electric traction motor. The method including calculating a total frictional work resulting from performing the total rotational speed synchronisation by means of a mechanical synchroniser of the stepped gear transmission only, and if the calculated total frictional work exceeds a maximal frictional work of the mechanical synchroniser, performing the rotational speed synchronisation by means of both the electric traction motor and the mechanical synchroniser.

A method for performing rotational speed synchronisation of a first transmission component having a first initial rotational speed with a second transmission component having a second initial rotational speed, so that they rotate with the same final rotational speed during a gear switch from an initial driving gear to a final driving gear in a stepped gear transmission for a hybrid electric or electric drive train having an electric traction motor. The method including calculating a total frictional work resulting from performing the total rotational speed synchronisation by means of a mechanical synchroniser of the stepped gear transmission only, and if the calculated total frictional work exceeds a maximal frictional work of the mechanical synchroniser, performing the rotational speed synchronisation by means of both the electric traction motor and the mechanical synchroniser.

A controller for a hybrid electric vehicle including an internal combustion engine is provided. The internal combustion engine includes a filter arranged in an exhaust passage collect particulate matter from exhaust gas. The controller executes a first deceleration control process, a second deceleration control process, and a selection process. The first deceleration control process uses a fuel cutoff process when deceleration of the hybrid electric vehicle is required. The second deceleration control process does not use the fuel cutoff process when deceleration of the hybrid electric vehicle is required. The selection process selects execution of the second deceleration control process when a PM deposition amount is greater than or equal to a threshold value and selects execution of the first deceleration control process when the PM deposition amount is less than the threshold value.

Methods and systems are provided for controlling and diagnosing a mechanical vehicle component. In one example, a method may include determining a vehicle speed and a plurality of clutch position settings at a diagnostic controller, and identifying unauthorized conditions based on these determinations. Further, the diagnostic controller may trigger an active fault state of the mechanical vehicle component in order to avoid unauthorized conditions that may lead to unwanted or unanticipated changes in vehicle motion.

Methods and systems are provided for controlling and diagnosing a mechanical vehicle component. In one example, a method may include determining a vehicle speed and a plurality of clutch position settings at a diagnostic controller, and identifying unauthorized conditions based on these determinations. Further, the diagnostic controller may trigger an active fault state of the mechanical vehicle component in order to avoid unauthorized conditions that may lead to unwanted or unanticipated changes in vehicle motion.

An apparatus for controlling a change in speed of a vehicle, includes: an auxiliary braking signal unit receiving an auxiliary braking related signal from a driver; a vehicle control unit receiving the auxiliary braking related signal from the auxiliary braking signal unit while controlling the vehicle; a motor control unit receiving a command for auxiliary braking from the vehicle control unit and decelerating the vehicle by regenerative braking of a driving motor; a transmission control unit controlling a transmission during deceleration of the vehicle and transmitting information of whether a change in speed is performed to the vehicle control unit; and a braking control unit connected to a brake through a fluid pressure line, and controlling the brake so that the brake applies braking pressure to a wheel by an amount of reduction in regenerative braking torque when the transmission is downshifted.

An apparatus for controlling a change in speed of a vehicle, includes: an auxiliary braking signal unit receiving an auxiliary braking related signal from a driver; a vehicle control unit receiving the auxiliary braking related signal from the auxiliary braking signal unit while controlling the vehicle; a motor control unit receiving a command for auxiliary braking from the vehicle control unit and decelerating the vehicle by regenerative braking of a driving motor; a transmission control unit controlling a transmission during deceleration of the vehicle and transmitting information of whether a change in speed is performed to the vehicle control unit; and a braking control unit connected to a brake through a fluid pressure line, and controlling the brake so that the brake applies braking pressure to a wheel by an amount of reduction in regenerative braking torque when the transmission is downshifted.

A controller for a hybrid vehicle predicts whether necessary discharging electric power from a power storage device which is required to perform downshift in a transmission exceeds upper-limit discharging electric power of the power storage device when downshift in the transmission is performed in a hybrid vehicle travel mode and controls a compressor rotation speed such that a rate of increase of the compressor rotation speed of a supercharger at the time of performing downshift in the transmission increases as the upper-limit discharging electric power decreases when it is predicted that the necessary discharging electric power exceeds the upper-limit discharging electric power.