摘要:
A split serial-parallel hybrid dual-power drive system, comprised of two or more than two separation drive systems allowing independent operation to respectively drive the load, or all loads driven individually are incorporated in a common frame to drive land, surface, underwater transportation means or aircraft, industrial machines and equipment or any other load drive by rotational kinetic energy.
摘要:
A method for controlling a hydraulic flow within a powertrain comprising an electromechanical transmission mechanically-operatively coupled to an engine adapted to selectively transmit power to an output, wherein the transmission utilizes a hydraulic control system serving a number of hydraulic oil consuming functions includes monitoring minimum hydraulic pressure requirements for each of the functions, determining a requested hydraulic pressure based upon the monitoring minimum hydraulic pressure requirements and physical limits of the hydraulic control system including a maximum pressure, determining a desired flow utilizing a hydraulic control system flow model based upon the requested hydraulic pressure, and utilizing the desired flow to control an auxiliary hydraulic pump.
摘要:
An electro-mechanical transmission system, driven by a prime mover, includes two epicyclic gearsets (12,14) connected between input (23) and output shafts (43), and two electrical machines having their rotors (52,54) connected to respective elements of the two gearsets (12,14). The torque on the output shaft (43) is boosted by a controller which dumps energy from the system when one of the machines is acting as a generator and the other as a motor.
摘要:
A hybrid-vehicle drive method and system includes an internal combustion engine (1) that includes an output shaft (2), a first electric motor/generator (8) connected to the output shaft of the internal combustion engine via a power distribution mechanism (3), a wheel drive shaft (11) connected to the output shaft of the internal combustion engine via the power distribution mechanism, a second electric motor/generator (12) connected to the wheel drive shaft, and a transmission (100, 101, 102) located on at least one of the wheel drive shaft and a connecting portion of the second electric motor/generator with the wheel drive shaft.
摘要:
The invention relates to an arrangement at an internal combustion engine, comprising an auxiliary unit (1) and a transmission, the auxiliary unit (1) being adapted to be driven by a crankshaft (2) of the engine via the transmission, characterized in that it comprises a first electrical machine (5), in that the transmission comprises a planetary gear set (4), comprising three gear parts (41, 42, 43) in the form of a sun wheel (41), an annulus wheel (42), and a planet carrier (43), and in that the three gear parts (41, 42, 43) are connected respectively to the auxiliary unit (1), the first electrical machine (5) and the crankshaft (2).
摘要:
A hybrid vehicle of the present invention includes a brake 62 that fixes a sun gear shaft 31a linked with a sun gear 31 of a power distribution integration mechanism 30, and a clutch 64 that mechanically connects a drive shaft 36 with a motor MG2 and releases the mechanical connection of the drive shaft 36 with the motor MG2. In the case of a relatively low vehicle speed, the power of an engine 22 is subjected to torque conversion by the power distribution integration mechanism and motors MG1 and MG2 and is output to the drive shaft 36, while the brake 62 is in OFF position and the clutch 64 is in ON position. In the case of a relatively high vehicle speed, on the other hand, the power of the engine 22 is directly output to the drive shaft 36, while the brake 62 is in ON position and the clutch 64 is in OFF position.
摘要:
The gear noise reduction measures is simplified as well as the optional setting alteration of the total gear ratio on the engine side is enabled without altering the mutual positions between axes. A hybrid drive apparatus is formed from an engine (E/G), a generator (G), a differential gear mechanism (P) linking the above two, an electric motor (M), and a differential apparatus (D). The power transmission system on the side of the engine that links the differential apparatus (D) with the output element of the differential gear mechanism (P) and the power transmission system on the side of the electric motor that links the differential apparatus (D) with the electric motor (M) are each formed from separate power transmission elements and are each linked to the differential apparatus (D) at the most downstream point of the power transmission system of each. As a result, it is possible to arbitrarily alter the setting of the total gear ratio on the engine side simply by altering the meshing diameter of the power transmission elements without altering the mutual positions between the axes of the engine (E/G), electric motor (M), and differential apparatus (D). Moreover, the implementing of measures against noise is simplified because the upstream side of the power transmission system that has a high probability of being the one generating problem noise is formed separately.
摘要:
In a hybrid transmission a differential unit is constituted by a single pinion planetary gear set (4) and a double pinion planetary gear set (5) holding a carrier (c) in common. The input end from a prime mover is coupled to a ring gear (Rd) of the double pinion planetary gear set (5), an output end to a drive system is coupled to the common carrier (c), a first motor/generator (MG1) is coupled to a sun gear (Sd) of the double pinion planetary gear set, a second motor/generator (MG2) is coupled to a sun gear (Ss) of the single pinion planetary gear set (4), and a brake (FB) is enabled to brake a ring gear (Rs) of the single pinion planetary gear set.
摘要:
There is provided a method of operating a hybrid-vehicle drive system in which an internal combustion engine (1), a first electric motor (8) and a second electric motor (12) are combined to provide a driving source for a hybrid vehicle, wherein an output shaft (2) of the internal combustion engine (1) and the first electric motor (8) are connected via a power distribution mechanism (3) to a wheel drive shaft (11), a transmission (100) having a plurality of gear positions is provided on the wheel drive shaft (11), and the wheel drive shaft (11) is connected via a connecting portion (16) to the second electric motor (12). The method comprises steps of: setting a gear position of the transmission (100) to a first gear position having a predetermined high-speed gear ratio as a first gear ratio, and maintaining the transmission in the first gear position irrespective of changes in a vehicle speed, as long as the hybrid-vehicle drive system is able to provide a required value of a torque at vehicle axles while the internal combustion engine (1) is operated at a high fuel efficiency.