摘要:
The invention relates to a hydraulic circuit (9) forming part of a hybrid hydraulic power train (1) with which a motor vehicle is provided. The hydraulic circuit (9) includes a main oil pump (7) connected to an internal combustion engine (1). The hydraulic circuit (9) includes a bypass line (20, 21) provided with a secondary oil pump (19) connected to an expansion member (28) installed on a heating loop (29).
摘要:
Hydraulically powered hybrid vehicle (10), comprising a combustion engine driving a hydraulic pump connected to pressure accumulators, one of the accumulators, of elongate tubular shape, being positioned longitudinally along the longitudinal axis (XX') of the vehicle in a longitudinal central tunnel defined by an impression made in the understructure of the vehicle, under the floor (P) of the vehicle, said vehicle further comprising an electrical energy store (20, 21) of the type comprising a plurality of electrical energy storage cells (23.1- 23.10) of UCAP type, able to power the vehicle on board network when the combustion engine is not running, and a control unit (40) for controlling the charge of the electrical energy store, characterized in that the store and the control unit are positioned in the passenger compartment and near one another, on or in close proximity to the floor of the vehicle.
摘要:
The invention relates to a device (10) for hydraulically controlling a gearbox including at least one sliding gear set in motion by a fork, comprising at least one hydraulic actuator (21) capable of moving the fork and at least one solenoid valve (19, 20) that is capable of changing the state of the hydraulic actuator (21) by means of the pressure differential between a high-pressure accumulator (11) and a low-pressure accumulator (15). The device is characterized in that it further comprises a very high-pressure accumulator (27), the pressure differential between the low-pressure accumulator (15) and the very low-pressure accumulator (27) enabling the solenoid valve (19, 20) to change the state of the actuator (21).
摘要:
The invention relates to a hydraulic drive system for motor vehicles. The system comprises: a motor (2) driving a hydraulic pump (4) for recharging pressure accumulators (22, 26); and at least one hydraulic traction motor (40, 60) driving drive wheels (30, 50) of the vehicle, which is controlled by a HP hydraulic power unit (8, 58) connected to said pressure accumulators. The system is characterised in that the pressure accumulators (22, 26), the HP hydraulic power units (8, 58) and the hydraulic traction motors (40, 60) are connected directly to one another in order to form a rigid sub-assembly.
摘要:
The invention relates to a variable displacement hydraulic machine, in particular for a motor vehicle, said hydraulic machine comprising a rotating cylinder (10) including a series of axial pistons (12) connected to a first plate (14) axially located on one side of said cylinder within a substantially transverse plane, the slope of which can be controlled, so as to form a first controllable displacement for said machine, wherein said machine is characterized in that the cylinder (10) further comprises a second series of axial pistons (22) connected to a second plate (24), the slope of which is also controllable, said plate being axially located, relative to the first plate (14), on the other side of said cylinder so as to form a second controllable displacement for said machine.