Automatic transmission oil supply unit for automatic start-stop system of engine
An automatic transmission and automatic start-stop technology, which is applied in the field of automobile transmission system, can solve problems such as short service life, failure of key components to be lubricated, wear and tear of transmission parts, and achieve the effect of saving fuel consumption
Inactive Publication Date: 2010-11-24
ZF TRANSMISSIONS SHANGHAI
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Problems solved by technology
But at this stage, the automatic transmission is still insufficient in matching the automatic start-stop engine. When the engine is turned off and the vehicle is still moving forward, key components such as the clutch and planetary row cannot be lubricated, causing wear and damage to the components of the transmission. phenomenon, and short-lived
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[0017] Now in conjunction with accompanying drawing, invention is described further.
[0018] Such as figure 1 As shown, the general working process of the existing automatic transmission is: the torque converter housing 3 receives the power input by the engine flywheel, and transmits the torque to the transmission input shaft 2 through the hydraulic action of the oil; the transmission input shaft 2 then drives the front stage planet Mechanism 7 and clutch E 9; front-stage planetary mechanism 7 transmits torque to clutch A 6 and clutch B 8; Depending on the combination of opening and closing states, different transmission components of the rear planetary mechanism 12 will be driven or locked respectively, so that the engine torque can be output through the transmission output shaft flange 13 at different speed ratios. At the same time, the torque converter housing drive sleeve 4 integrated with the torque converter housing 3 is directly fixedly connected with the oil pump int...
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The invention relates to the technical field of automotive transmissions, in particular to an automatic transmission oil supply unit for an automatic start-stop system of an engine. The automatic transmission oil supply unit comprises a transmission input shaft, an inside transition gear, an outside transition gear, an overrunning coupler, a torque converter shell drive sleeve, an oil pump inner gear and a stator sleeve, and is characterized in that: the transmission input shaft is provided with an input shaft gear ring at an axial position close to an oil pump; the input shaft gear ring is meshed with the inside transition gear; the inside transition gear is meshed with the outside transition gear, and the inside transition gear and the outside transition gear are fixed in transition gear mounting holes of the stator sleeve; an inner ring of the overrunning coupler is provided with a gear ring which is meshed with the outside transition gear; an outer ring of the overrunning coupler is connected with the oil pump inner gear; the oil pump inner gear is connected with an outer ring of the other overrunning coupler; and an inner ring of the other overrunning coupler is connected with the torque converter shell drive sleeve. Compared with the prior art, the automatic transmission oil supply unit ensures that lubrication is constantly provided for the transmission no matter the engine is started or shut down when a vehicle moves forwards.
Description
[technical field] [0001] The invention relates to the technical field of automobile drive trains, in particular to an automatic transmission oil supply device for an engine automatic start-stop system. [Background technique] [0002] The automatic start-stop system means that when the vehicle is in a state that does not require power, such as braking or coasting, the engine energy-saving start-stop function will automatically shut down the engine to save fuel; once the accelerator is stepped on, the engine will be restarted immediately. For example, when the vehicle reaches a red light at an intersection or coasts at an idling speed, as long as the driver brakes, the control system will stop the engine. Therefore, an engine with an automatic start-stop system can effectively help reduce fuel consumption and emissions. At the same time, the automatic start and stop of the engine does not need to change any existing driving habits, and will not affect driving comfort and safe...
Claims
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Login to View More IPC IPC(8): F16H57/04F16N7/38F16H1/28
Inventor 蔡磊潘笑宇
Owner ZF TRANSMISSIONS SHANGHAI