Abstract: A hand-held power tool (1) is disclosed comprising a tool (2) and a motor assembly (3). The power tool (1) further comprises an actuator (5), a light emitting device (7) arranged on or adjacent to the actuator (5), and a control arrangement (21). The control arrangement (21) is configured to enable or disable operation of the motor assembly (3) based on input from the actuator (5). The control arrangement (21) is configured to obtain fault data indicative of an at least potential operational fault of the power tool (1). The control arrangement (21) is further configured to cause the light emitting device (7) to output a first type of signal when no fault data is obtained, and to cause the light emitting device (7) to output a second type of signal, being distinguishable from the first type of signal, when fault data is obtained.

Abstract: A two-stroke engine (1) is disclosed comprising a cylinder (2), a piston (3) arranged to reciprocate in the cylinder (2), a crankcase (5), a fuel injector (7) configured to inject fuel into the crankcase (5), an air inlet (9) connected to the crankcase (5), and a stratified scavenging intake (11) connected to the cylinder (2). The engine (1) comprises a throttle (13) configured to control the amount of air supplied to the air inlet (9) and to the stratified scavenging intake (11). The present disclosure further relates to handheld power tool (50) comprising an engine (1).

Abstract: A two-stroke engine (1) is disclosed comprising a cylinder (2), a piston (3) arranged to reciprocate in the cylinder (2), a crankcase (5), a fuel injector (7) configured to inject fuel into the crankcase (5), an air inlet (9) connected to the crankcase (5), and a stratified scavenging intake (11) connected to the cylinder (2). The engine (1) comprises a throttle (13) configured to control the amount of air supplied to the air inlet (9) and to the stratified scavenging intake (11). The present disclosure further relates to handheld power tool (50) comprising an engine (1).

Abstract: A voltage supply unit for a vehicle is described, the voltage supply unit having a first output adapted to supply a first voltage to a first load and a second output adapted to supply a second voltage to a second load. The second voltage is obtained by a DC/DC converter powered by the first voltage, where the low voltage side of the DC/DC converter is connected to the second output and the high voltage side of the DC/DC converter is connected to the first output. Two different voltages can thereby be supplied by the use of one battery.

Abstract: Method and system for starting an internal combustion engine that rotates a drive shaft providing torque to a driving wheel via a transmission unit comprising a first clutch connecting the engine to an input shaft of a gearbox connected to a torque converter. The torque converter is connected to a second clutch connected to the driving wheel through a transmission, and the input shaft is connected to an auxiliary drive source in an offset arrangement with a predetermined torque ratio between the input shaft and the auxiliary drive source. Starting the engine comprises disengaging the first clutch, disengaging the second clutch to a predetermined torque level, accelerating the input shaft and the torque converter with the auxiliary drive source to a predetermined rotational speed, and engaging the first clutch to start the engine with the energy stored in the input shaft, the torque converter, and the auxiliary drive source.

Abstract: A hybrid vehicle comprises an internal combustion engine, a transmission, at least one driving wheel rotationally connected to the transmission, and a coupling arrangement arranged between the internal combustion engine and the transmission, and controllable between a first state in which a drive shaft of the engine is rotationally connected to the transmission and a second state in which the drive shaft of the engine is rotationally disconnected from the transmission. The vehicle further comprises an energy recovery device connected to the coupling arrangement via a flexible driving member for allowing recovery and storage of energy recovered from deceleration of the at least one driving wheel. The vehicle may further comprise a sensor for sensing a parameter value indicative of desired deceleration, and a control unit for controlling the coupling arrangement to the second state when the sensed parameter value indicates desired deceleration of the hybrid vehicle.

Abstract: A voltage supply unit for a vehicle is described, the voltage supply unit having a first output adapted to supply a first voltage to a first load and a second output adapted to supply a second voltage to a second load. The second voltage is obtained by a DC/DC converter powered by the first voltage, where the low voltage side of the DC/DC converter is connected to the second output and the high voltage side of the DC/DC converter is connected to the first output. Two different voltages can thereby be supplied by the use of one battery.

Abstract: Method and system for starting an internal combustion engine that rotates a drive shaft providing torque to a driving wheel via a transmission unit comprising a first clutch connecting the engine to an input shaft of a gearbox connected to a torque converter. The torque converter is connected to a second clutch connected to the driving wheel through a transmission, and the input shaft is connected to an auxiliary drive source in an offset arrangement with a predetermined torque ratio between the input shaft and the auxiliary drive source. Starting the engine comprises disengaging the first clutch, disengaging the second clutch to a predetermined torque level, accelerating the input shaft and the torque converter with the auxiliary drive source to a predetermined rotational speed, and engaging the first clutch to start the engine with the energy stored in the input shaft, the torque converter, and the auxiliary drive source.

Abstract: A gas flow regulating device for cleaning a particulate filter is configured to be arranged in connection to the filter at a side thereof in a through-flow of a gas to be used for cleaning the filter. The device is a standalone unit configured to be removably installed in connection with a cleaning process, wherein the device includes a frame defining a gas flow passage and a gas flow regulating element arranged inside the frame, wherein the gas flow regulating element is provided with at least one opening for gas through-flow and a blocking part capable of blocking a portion of a gas through-flow area of the filter such as to force the gas to flow through the at least one opening, wherein the gas flow regulating element is movably arranged between at least two different positions, and wherein the at least one opening covers different portions of the gas through-flow area in the different positions.

Abstract: A hybrid vehicle comprises an internal combustion engine, a transmission, at least one driving wheel rotationally connected to the transmission, and a coupling arrangement arranged between the internal combustion engine and the transmission, and controllable between a first state in which a drive shaft of the engine is rotationally connected to the transmission and a second state in which the drive shaft of the engine is rotationally disconnected from the transmission. The vehicle further comprises an energy recovery device connected to the coupling arrangement via a flexible driving member for allowing recovery and storage of energy recovered from deceleration of the at least one driving wheel. The vehicle may further comprise a sensor for sensing a parameter value indicative of desired deceleration, and a control unit for controlling the coupling arrangement to the second state when the sensed parameter value indicates desired deceleration of the hybrid vehicle.

Abstract: A gas flow regulating device for cleaning a particulate filter is configured to be arranged in connection to the filter at a side thereof in a through-flow of a gas to be used for cleaning the filter. The device is a standalone unit configured to be removably installed in connection with a cleaning process, wherein the device includes a frame defining a gas flow passage and a gas flow regulating element arranged inside the frame, wherein the gas flow regulating element is provided with at least one opening for gas through-flow and a blocking part capable of blocking a portion of a gas through-flow area of the filter such as to force the gas to flow through the at least one opening, wherein the gas flow regulating element is movably arranged between at least two different positions, and wherein the at least one opening covers different portions of the gas through-flow area in the different positions.