Abstract: The invention relates to a vehicle axle, comprising: —a differential; —a powertrain, comprising a first electric motor (EM1) and a second electric motor (EM2); —a first transmission element between the first electric motor and said differential, this first transmission element comprising a variable transmission ratio; —a second transmission element between the second electric motor and said differential; wherein the second electric motor is controlled so as to provide its maximum power during gear changes of the first transmission element, so as to compensate at least partially for the power loss inherent in the gear change.

Abstract: The filter element includes a filter medium having an axis and forming a channel extending substantially axially, a first and a second end plate, each end plate covering one axial end of the filter medium and being sealingly mounted on the axial end whereby a liquid to be filtered can flow through the filter medium towards the channel and out of the filter element through an opening in fluid communication with the channel, or reversely. The filter element includes a protrusion fixedly secured to the first end plate and extending outwardly from the first end plate, the protrusion being substantially tubular and having a through hole in fluid communication with the first end plate opening, the protrusion forming a female coupling piece of a male-female connector, and a locking member capable of releasably locking a male coupling piece of the male-female connector in the female coupling piece.

Abstract: The invention relates to a vehicle axle, comprising:—a differential;—a powertrain, comprising a first electric motor (EM1) and a second electric motor (EM2);—a first transmission element between the first electric motor and said differential, this first transmission element comprising a variable transmission ratio;—a second transmission element between the second electric motor and said differential; wherein the second electric motor is controlled so as to provide its maximum power during gear changes of the first transmission element, so as to compensate at least partially for the power loss inherent in the gear change.

Abstract: A gearbox for a vehicle includes a primary shaft configured to rotate about a first axis, a distribution gear, a transmission gear arranged around the primary shaft, an auxiliary shaft configured to rotate around a second axis, an auxiliary output gear and an auxiliary transmission gear arranged around the auxiliary shaft, an output gear arranged around the primary shaft for transmitting a power out of the gearbox, and a gear shift system slidable between at least two positions. The gear shift system is configured to rotationally engage the distribution gear and the output gear for transmitting the power directly from the primary shaft to the output gear, or the distribution gear and the transmission gear for transmitting the power indirectly from the primary shaft to the output gear through the auxiliary shaft.

Abstract: The filter element includes a filter medium having an axis and forming a channel extending substantially axially, a first and a second end plates, each end plate covering one axial end of the filter medium and being sealingly mounted on the axial end, the first end plate having an opening in fluid communication with the channel, whereby a liquid to be filtered can flow through the filter medium towards the channel and out of the filter element through the opening, or reversely. The filter element further includes a protrusion fixedly secured to the first end plate and extending outwardly from the first end plate, the protrusion being substantially tubular and having a through hole in fluid communication with the first end plate opening, the protrusion forming a female coupling piece of a male-female connector, and a locking member capable of releasably locking a male coupling piece of the male-female connector in the female coupling piece.

Abstract: A gearshift control device for a chain and sprocket transmission system including a gearshift member that is movable along a transverse direction relative to the plane defined by the chain, a shaft, a first driving element having a drive member that is non-centered or non-concentric with respect to the axis of the shaft, a second positioning element of the derailleur with an indexing device, a third control element mounted to rotate freely about the shaft with a blocking device, and a transmission element having a member for connection with the first driving element, the second positioning element and the third control element, the transmission element being operably between the first driving element, the second positioning element, and the third control element.

Abstract: A driving sprocket, or chainwheel, for a bicycle crankset having a toothed ring whose ring is divided into a plurality of segments, the segments being borne by a frame that is rotationally movable about a crankset axle, each sprocket segment being movable between a low position and a high position, a system for transferring each segment to transfer said segment from one position to another, and an indexing mechanism to control the system for shifting the segments. Each segment of the driving sprocket is floating mounted with respect to the frame and is guided in its transfer movement along a trajectory having a radial component and a tangent component.

Abstract: A gearshift control device for a chain and sprocket transmission system including a gearshift member that is movable along a transverse direction relative to the plane defined by the chain, a shaft, a first driving element having a drive member that is non-centered or non-concentric with respect to the axis of the shaft, a second positioning element of the derailleur with an indexing device, a third control element mounted to rotate freely about the shaft with a blocking device, and a transmission element having a member for connection with the first driving element, the second positioning element and the third control element, the transmission element being operably between the first driving element, the second positioning element, and the third control element.

Abstract: The invention relates to a driving sprocket for a bicycle crankset having a toothed ring whose ring is divided into a plurality of segments (14a, 14b, 14c, 14d), the segments being borne by a frame (16) that is rotationally movable about a crankset axle, each sprocket segment being movable between a low position and a high position, a system for transferring each segment to transfer said segment from one position to another, and an indexing mechanism to control the system for shifting the segments. The sprocket is characterized in that each segment (14a, 14b, 14c, 14d) is floatingly mounted with respect to the frame (16) and in that it is guided in its transfer movement along a trajectory having a radial component and a tangent component.

Abstract: A transmission system provided for a bicycle, including a primary transmission sub-assembly having a set of rear sprockets, whose number of teeth, from one sprocket to the next sprocket in the ascending order, varies according to a ratio of the numbers of teeth that is greater than or equal to a value n such as n greater than 1. The invention also includes a control of the transmission system, as well as a bicycle that includes the transmission system and the control for same. The transmission system includes a single chain wheel for driving the chain, associated with a bottom bracket assembly, and a secondary transmission sub-assembly having at least two drive output ratios, whose ratio of the highest drive speed to the lowest drive speed is equal to a value R between 1 and n so as to introduce at least one intermediate transmission ratio between two successive sprockets.

Abstract: A transmission system provided for a bicycle, including a primary transmission sub-assembly having a set of rear sprockets, whose number of teeth, from one sprocket to the next sprocket in the ascending order, varies according to a ratio of the numbers of teeth that is greater than or equal to a value n such as n greater than 1. The invention also includes a control of the transmission system, as well as a bicycle that includes the transmission system and the control for same. The transmission system includes a single chain wheel for driving the chain, associated with a bottom bracket assembly, and a secondary transmission sub-assembly having at least two drive output ratios, whose ratio of the highest drive speed to the lowest drive speed is equal to a value R between 1 and n so as to introduce at least one intermediate transmission ratio between two successive sprockets.