摘要:
A hybrid powertrain (10) has a suitable heat engine (12) having rotational output, a multi-speed transmission (14) and a motor/generator (MG) (16). The transmission input or cluster shaft (20) is continuously connected with the MG. One set of ratio gears (22,64,66) in the transmission is continuously drivingly connected to an accessory drive (68). The cluster shaft and a main shaft (34) are selectively interconnected through a plurality of sets of ratio gears that are activated through the selective engagement of synchronizers associated with the ratio gears on the main shaft. The engine is selectively drivingly connected with the cluster shaft through a launch device such as a friction clutch (18). The output of the transmission, a differential (58), can be driven by the engine only, by the MG only or by a combination of the engine and the MG. The accessory mechanism is selectively connectable with the accessory drive and may also be driven under the same conditions as the transmission output as well as by the MG when the engine is off and the vehicle is stationary.
摘要:
Disclosed is a multi-speed gearbox (10; 10a) comprising two input shafts (12, 13) and one output shaft (25). Each of the input shafts (12, 13) is connected to a clutch (29, 30) and can be separated with the clutch from the internal combustion engine (11) of a motor vehicle. One or two electric motors (34, 35; 40) are allocated to the two input shafts (12, 13) and joined thereto in non-positive fit. The electric motors are arranged on the opposite side of the clutches (29) to the internal combustion engine. The electric motor or motors (34, 35; 40) make(s) it possible to do without a starter and a dynamo for the internal combustion engine (11). The synchronisation speed of the input shaft (12, 13), corresponding to a target gear, can be adjusted in a simple manner, enabling various operating states to be obtained.
摘要:
A hybrid powertrain (10) has a suitable heat engine (12) having rotational output, a multi-speed transmission (14) and a motor/generator (MG) (16). The transmission input or cluster shaft (20) is continuously connected with the MG. One set of ratio gears (22,64,66) in the transmission is continuously drivingly connected to an accessory drive (68). The cluster shaft and a main shaft (34) are selectively interconnected through a plurality of sets of ratio gears that are activated through the selective engagement of synchronizers associated with the ratio gears on the main shaft. The engine is selectively drivingly connected with the cluster shaft through a launch device such as a friction clutch (18). The output of the transmission, a differential (58), can be driven by the engine only, by the MG only or by a combination of the engine and the MG. The accessory mechanism is selectively connectable with the accessory drive and may also be driven under the same conditions as the transmission output as well as by the MG when the engine is off and the vehicle is stationary.
摘要:
The invention concerns a system for actively reducing rotational non-uniformity of a shaft, in particular the drive shaft (10) of an internal-combustion engine (1) or a shaft which is coupled, or can be coupled, to the drive shaft. The system includes at least one electrical machine (4), in particular an induction machine or travelling-wave machine, which is coupled, or can be coupled, to the shaft; at least one inverter (17) which generates the voltage and/or current of variable frequency, amplitude and/or phase necessary to produce the magnetic field of the electrical machine (4); and at least one control device (31) which controls the inverter (17) and hence the electrical machine (4) in such a way that the machine counteracts both positive and negative rotational non-uniformity of the shaft. The invention also concerns a method of actively reducing rotational non-uniformity using the system.
摘要:
Described is a drive system, in particular a drive system for a motor vehicle, with a drive unit, in particular an internal-combustion engine (1); at least one electrical machine (4); and a traction-control unit. The (or one) electrical machine is designed so that drive-induced slip can be reduced, in particular by brake action and/or, when the electrical machine acts as a clutch, by slipping the clutch.
摘要:
The invention concerns a system designed to actively reduce radial vibrations in a rotating shaft (4), in particular the drive shaft of an internal-combustion engine (1), the system having at least one electromagnetic device (7; 10; 15, 16) which is designed and controlled so that it applies to the shaft (4) radial forces which counteract radial vibrations in the shaft (4).
摘要:
A powertrain includes a prime mover, a transmission, an input shaft adapted to transmit torque between the prime mover and the transmission, an output shaft adapted to transmit torque between the transmission and a driveline, and a master clutch between the prime mover and the input shaft, the clutch being movable between a disengaged position and an engaged position in which the clutch is not and is adapted to transmit torque between the prime mover and the input shaft, respectively. An electric motor is arranged for torque transmission with at least one of the input shaft and the output shaft, and a controller is provided for controlling the electric motor to rotate the input shaft at a rotational speed within an operating range of the prime mover when the clutch is moved from the disengaged to the engaged position.
摘要:
To provide a vehicle transmission control device that reduces vehicle shock caused by FB torque that is output due to rotational speed FB control, at the time of shifting when the engagement clutch is meshingly engaged based on a rotation synchronization determination. In a hybrid vehicle, rotational speed FB control on a second motor/generator (MG2) connected to a first engagement clutch (C1) is carried out when there is a gear shift request to a gear shift stage at which the first engagement clutch (C1) of the multistage gear transmission (1) is meshingly engaged. A transmission control unit (23) is provided for outputting a meshing engagement instruction to the first engagement clutch (C1) when a rotational speed FB control causes a differential rotation speed of the first engagement clutch (C1) to be within a range of a synchronization determination rotational speed. Upon executing the rotational speed FB control on the second motor/generator (MG2), this transmission control unit (23) makes the efficacy of rotational speed FB control less than before starting of the meshingly engagement, when the meshing engagement of the first engagement clutch (C1) is started.
摘要:
A controlling apparatus and method for an electric drive transmission used in a dual-motor electric vehicle are disclosed, wherein when the second motor 2 is in the zero torque state, the synchronizer is shifted to a neutral position, the second motor the required torque being kept to be zero; after shifted to the neutral position, if the target gear position is the neutral position, gearshifting is completed, an if the target gear position is not the neutral position, speed control to the second motor is conducted to adjust its speed towards a target speed; once the second motor is adjusted to the target speed, the second motor is subjected to zero torque control, the second motor the required torque being zero; once the second motor comes into a zero torque state, the synchronizer 6 is shifted to a target gear position, the required torque of the second motor being kept to be zero; once the synchronizer is located in the target gear position, the required torque of the second motor changes towards a target value at a proper changing rate; once the second motor real torque and is equal to or larger than target torque, gearshifting is judged as completed. Loss in wheel driving torque caused by the second motor in the whole gearshifting procedure is compensated by the first motor 1, so that gearshifting without power interruption can be achieved.