摘要:
An optionally connectable four-wheel drive vehicle having: an engine having a drive shaft; two main drive wheels; a main power train permanently connecting the drive shaft to the main drive wheels and, in turn, having a transmission and a main differential; two normally driven secondary drive wheels; an optionally connectable secondary power train for also connecting the drive shaft to the secondary drive wheels, a gear drive with at least two different, alternatively selectable velocity ratios, and at least one secondary clutch, which is connected on one side to the drive shaft upstream from the transmission and on the other side to the secondary drive wheels.
摘要:
A method for arranging an accumulating device in proximity of a floor of a vehicle forming a bottom wall of a passenger compartment of the vehicle itself; the accumulating device has a heating base wall which is free from heat insulation, and a non-heating base wall which is parallel and opposite to the heating base wall and is provided with a heat-insulating material layer; and the method provides for the steps of arranging the accumulating device in a seating obtained in proximity of the floor; and implementing the accumulating device with a symmetry allowing the reversal of the accumulating device itself within the seating obtained in proximity of the floor in such a way that the heating base wall may be equally either facing upwards and then towards the passenger compartment or facing downwards and then towards the external environment.
摘要:
A car having a frame, which supports a pair of front wheels and a pair of rear wheels, a passenger compartment, at least one pair of doors, and an underbody which delimits the car on the lower side, faces the road surface, and has an aerodynamic diffuser, which is arranged in a rear position and is provided with a chute having a height with respect to the road surface that progressively increases when longitudinally moving from the front to the rear. The underbody can include a pair of aerodynamic channels, each of which extends longitudinally, leads to the aerodynamic diffuser, is open on the lower side towards the road surface, has a shape of an upside-down “U” in its transverse section and is open underneath towards the road surface and has, in its transverse section, an area that progressively increases when longitudinally moving from the front to the rear.
摘要:
Transmission for a road vehicle with hybrid propulsion; the transmission comprises: a gearbox provided with one primary shaft, one secondary shaft and at least one pump actuated by an activating shaft; at least one clutch connected to the primary shaft and presenting a part which is normally conductive which can be connected to a drive shaft of a thermal engine; at least one reversible electric machine presenting a shaft mechanically connectable to the primary shaft; a first mechanical transmission which transmits motion from the normally conductive part of the clutch to the activating shaft; and a second mechanical transmission which transmits motion from the shaft of the electric machine to the activating shaft.
摘要:
An embodiment of a multidisk oil-bath clutch having: a housing mounted to rotate; at least one hub mounted to rotate and housed inside and coaxially with the housing; a number of drive disks housed inside the housing and angularly integral with the housing or the hub; a number of driven disks housed inside the housing, alternating with the drive disks, and angularly integral with the hub or the housing; at least one oil inlet into the housing; and at least one oil outlet from the housing. Each drive disk has a number of first circulation channels extending radially from an inner edge of the drive disk; and each driven disk has a number of second circulation channels extending radially from an inner edge of the driven disk.
摘要:
A method for starting an internal combustion thermal engine of a hybrid vehicle having: the thermal engine provided with a drive shaft; at least one pair of driving wheels; a transmission, which transmits the motion from the thermal engine to the driving wheels and has a clutch; and an electric machine, which is mechanically connected to the clutch downstream of the clutch, so that the clutch is interposed between the electric machine and the thermal engine; the starting method includes the steps of: opening the clutch to separate the electric machine from the thermal engine; separating the electric machine from the driving wheels; making the electric machine rotate by operating the electric machine as a motor; and closing the clutch when the electric machine reaches a launch rotation speed.
摘要:
An embodiment of a multidisk oil-bath clutch having: a housing mounted to rotate; at least one hub mounted to rotate and housed inside and coaxially with the housing; a number of drive disks housed inside the housing and angularly integral with the housing or the hub; a number of driven disks housed inside the housing, alternating with the drive disks, and angularly integral with the hub or the housing; at least one oil inlet into the housing; and at least one oil outlet from the housing. Each drive disk has a number of first circulation channels extending radially from an inner edge of the drive disk; and each driven disk has a number of second circulation channels extending radially from an inner edge of the driven disk.
摘要:
A chassis of a vehicle, the chassis is provided with a pair of door sills arranged longitudinally under the door zone and each having a through hole, and a pair of central pillars, each of which raises perpendicularly and vertically from a door sill, is made of one piece, is inserted in an interlocking way in the through hole of a window sill and is welded to the window sill at the through hole.
摘要:
Transmission for a road vehicle with hybrid propulsion; the transmission comprises: a gearbox provided with one primary shaft, one secondary shaft and at least one pump actuated by an activating shaft; at least one clutch connected to the primary shaft and presenting a part which is normally conductive which can be connected to a drive shaft of a thermal engine; at least one reversible electric machine presenting a shaft mechanically connectable to the primary shaft; a first mechanical transmission which transmits motion from the normally conductive part of the clutch to the activating shaft; and a second mechanical transmission which transmits motion from the shaft of the electric machine to the activating shaft.
摘要:
An optionally connectable four-wheel drive vehicle provided with an engine having a drive shaft, two main drive wheels, a main power train permanently connecting the drive shaft to the main drive wheels, and in turn comprising a transmission and a main differential, two normally driven secondary drive wheels, and an optionally connectable secondary power train for also connecting the drive shaft to the secondary drive wheels, and in turn presenting a gear drive, at least one secondary clutch, which is connected on one side to the drive shaft upstream from the transmission, and on the other side to the secondary drive wheels, and a unit for the reversal of the motion, which is controlled to reverse or not to reverse the direction of the motion.