Power-split hybrid drivetrain with overrunning clutch
A hybrid vehicle, clutch technology, applied in hybrid vehicles, clutches, one-way clutches, etc., can solve problems such as affecting the forward propulsion of vehicles
Active Publication Date: 2020-10-16
FORD GLOBAL TECH LLC
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
Because there is no reverse gear, the first power source can only affect the forward propulsion of the vehicle
Method used
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[0036] As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which may be embodied in various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention.
[0037] Now refer to figure 1 , showing a hybrid electric vehicle with a power-split drivetrain. The powertrain includes two power sources connected to the driveline: (1) the engine 16 and the electric machine 50 (which may be referred to as a generator) connected together via a planetary gear transmission 20; (2) an electric drive system, including a battery 12. Electric machine 46 ...
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The invention discloses a power split hybrid power transmission system with an overrunning clutch. A hybrid vehicle powertrain includes an internal combustion engine, first and second electric machines, traction wheels, and an output shaft having meshing gears configured to establish a final reduction ratio between the output shaft and the traction wheels. Additionally, the powertrain includes a first mechanical linkage and a second mechanical linkage. The first mechanical linkage is configured to selectively transmit engine torque to the traction wheels and selectively transmit electric machine torque to the traction wheels. The second mechanical linkage is configured to selectively transmit engine torque to the traction wheels. The second mechanical linkage defines a fixed overspeed relationship between the engine and the traction wheels when transmitting engine torque to the wheels.
Description
technical field [0001] The present disclosure relates to a powertrain for a hybrid electric vehicle. Background technique [0002] A type of hybrid electric vehicle drivetrain, commonly referred to as a power-split drivetrain, has two power sources. The first power source includes an internal combustion engine, while the second power source includes a combination of an electric motor, generator, and battery. The engine and generator, along with the planetary gear sets, intermediate shafts and motors, establish mechanical and electromechanical torque flow paths to the traction wheels of the vehicle. Batteries are energy storage devices used in generators and motors. At any alternator rpm and vehicle speed, engine power is split into two power flow paths. The engine speed is controlled by the generator, which means that the engine speed can be decoupled from the vehicle speed within the allowable generator speed range. When the generator produces electricity using the mech...
Claims
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IPC IPC(8): B60K6/383B60K6/365B60K6/387
CPCB60K6/36B60K6/383B60K6/387B60K6/445B60W10/02B60W10/06B60W10/08B60W20/20B60W2520/10B60W2540/10B60W2540/103B60W2540/106B60W2540/12B60W2710/021B60W2710/081B60W20/13B60W2556/10F16D48/06F16D2500/1022F16D2500/10462F16D2500/10493F16D2500/1066F16D2500/30401F16D2500/3101F16D2500/3108F16D2500/3109F16D2500/50858F16D41/14Y02T10/62Y10S903/93B60W20/40B60W2510/06B60W2510/18B60W2510/242B60W2520/105B60W2710/08B60W20/14
Inventor 沃尔特·约瑟夫·欧特曼伯纳德·D·内佛西丹尼尔·斯科特·科尔文
Owner FORD GLOBAL TECH LLC