摘要:
The invention relates to a method for controlling the coupling, by coupling means (MC) of a vehicle (V), of a first shaft (A1) driven by a machine (ME) to a second shaft (A2) driving wheels. Said method comprises a first step of operating the machine (ME) so as to drive the first shaft (A1) at a set operating speed, followed by controlling the coupling means (MC) so that they start the coupling with the second shaft (A2); and a second step, if the coupling between the first (A1) and second (A2) shafts could not be established, of causing the machine (ME) to output a torque equal to the sum of a set torque and an additional torque which is alternately decreasing and increasing and has a variation amplitude which increases from one alternation to the next, until the coupling resumes, and then maintaining said output torque substantially constant until the end of coupling.
摘要:
A hydraulic circuit designed for a hybrid vehicle provided with a hydraulic machine (22) and a pump (20) linked to a transmission (4) driving the wheels of the vehicle, said machine and said pump being linked together in order to allow direct exchanges of fluid that take place in a very high pressure circuit (42) not comprising a pressure accumulator, characterised in that the very high pressure circuit (42) comprises safety means (110) which, in case of overpressure, discharge the fluid to a limited pressure circuit (40) provided with a pressure accumulator (46).
摘要:
The invention relates to a hybrid motor vehicle comprising a vacuum braking device. The vehicle comprises hydraulic powering means (11, 20, 21) allowing a vacuum to be produced in the braking system via the combustion engine (1). The hydraulic energy comes from a hydraulic energy accumulator (20) or from the hydraulic energy regenerative system. Thanks to the invention, the motor vehicle does not have a vacuum pump for the braking system.
摘要:
The invention pertains to a lubrication device for the internal mechanics of a transmission of a vehicle, in particular a motor vehicle. According to the invention, the two front faces (11, 12) of the hub (3) and the pinion (4) together define at least one groove for conveying lubricant fluid from the inner walls of the hub and the pinion to the lateral edges of those opposite faces (11, 12) of the hub and the pinion, and at least one storage pouch (14) for that liquid on the periphery of those opposite faces (11, 12) of the hub and the pinion in order to lubricate the adjacent synchronizing device for the transmission (6).
摘要:
The invention relates to a method for filtering the torsional vibrations of a heat engine (2) connected via a damper (8) to a transmission (12) driving the driving wheels (14) of a hybrid vehicle, by means of a vibration damper (8), a hydraulic machine (20), working as a motor or as a pump, which can be connected to a shaft (10) of the transmission via a coupling system (22), characterized in that, in a first mode of operation that has a high level of vibration excitation generated by the heat engine (2), the method systematically maintains the coupling of the hydraulic machine to add inertia to the transmission shaft (10), whether or not said machine is in operation, and, in a second mode of operation that has a lower level of vibration excitation, the method allows a decoupling of the hydraulic machine.
摘要:
The invention concerns a device (3) for synchronising at least two DC/DC converters. It is characterised in that it comprises; receiving means (21A, 21B, 23A, 23B) for receiving a switching signal generated by each of the converters; means (25) for detecting a transition type of the received switching signals; means (27) for generating a synchronisation signal when a transition is detected; and means (27, S1, S2) for supplying the synchronisation signal to one of the converters, said means (27, S1, S2) being configured to supply the synchronisation signal to a different converter and in an order of succession each time a transition is detected.
摘要:
A powertrain for a hybrid vehicle, comprising a hydraulic pump (36) recharging pressure accumulators (40, 42), which is linked to the sun gear (14) of a planetary gear train (10), an internal combustion engine (2) being linked to the ring gear (12), the drive wheels of the vehicle being linked to the planet carrier (16) of this planetary gear train, said powertrain (1) comprising a hydraulic engine (50) supplied by the accumulators (40, 42), which is linked to the drive wheels, characterised in that it comprises a system for immobilizing the planetary gear train (38), and a free wheel (30) positioned on the drive of the pump (36), which enables the internal combustion engine (2) to drive the vehicle forward when the planetary gear train (10) is blocked, leaving said pump stopped.