摘要:
TORQUE CONVERTER TRANSMISSION HAVING FIRST AND SECOND TURBINES CONNECTED TO ASSOCIATED GEARSETS, HAVING DIFFERENT SPEED RATIOS FOR DRIVING A POWER-COMBINING SHAFT. A FRICTION CLUTCH, CONTROLLED BY A FLUID-OPERATED MOTOR WHICH IS TRIGGERED BY A CHANGE IN TORQUE DIRECTION ON THE FIRST TURBINE, IS CONNECTED BETWEEN THE OUTPUT OF THE FIRST TURBINE GEARSET AND THE SHAFT. THERE IS A FLUID-FLOW CONTROL VALVE FORMED BY THE CLUTCH HUB AND COMBINING SHAFT WHICH DIRECTS AMPLE OIL TO THE MOTOR TO EFFECT CLUTCH ENGAGEMENT WHEN THE FIRST TURBINE AND ITS DRIVEN GEAR TENDS TO OVERRUN THE COMBINING SHAFT. WITH THE CLUTCH ENGAGED, BOTH TURBINES DRIVE THE COMBINING SHAFT TO PROVIDE MAXIMUM INPUT TORQUE. WHEN THE COMBINING SHAFT
SPEED INCREASES UNTIL THE FIRST TURBINE CAN NO LONGER ADD TORQUE, A FURTHER INCREASE OF COMBINING SHAFT SPEED BRINGS ABOUT A TORQUE REVERSAL AND THE VALVE MOVES TO EXHAUST OIL FROM THE CLUTCH MOTOR SO THAT THE CLUTCH DISENGAGES. UNDER THESE CONDITIONS ONLY THE SECOND TURBINE DRIVES THE COMBINING SHAFT TO IMPROVE CONVERTER PERFORMANCE IN THE HIGH SPEED RATIOS.
摘要:
The present invention relates to an automated manual transmission comprising: a first gearshift unit (10) connected to the turbine of a torque converter connected to an engine and driven by the engine; a second gearshift unit (20) that includes an auxiliary input gear unit (30) and is connected to the impeller of the torque converter; and the auxiliary input gear unit (30). The first gearshift unit (10) increases or reduces the RPM of the power from the engine (1) transferred by means of the torque converter by a certain gear ratio and transmits the power to a drive wheel (50). The second gearshift unit (20) is directly coupled to the engine (1) and increases or reduces the RPM of the power from the engine (1) transferred by means of each gear by a certain gear ratio and transmits the power to a drive wheel (41). The auxiliary input gear unit (30) uses a clutch (32) to regulate an auxiliary gear (31) and a first input shaft (11) connected to an output shaft (40), and transmits the rotational force of the engine (1) to the drive wheel (50) by means of the auxiliary gear (31) and the clutch (32) while the first gearshift unit (10) or the second gearshift unit (20) are shifting gears.
摘要:
A vehicle includes an internal combustion engine configured to power a hydraulic pump to pressurize hydraulic fluid, which is used to power the vehicle directly or is stored in an accumulator. A drive module, including a hydraulic pump/motor and a multi-speed mechanical transmission, is operatively coupled to drive wheels of the vehicle to provide motive power to the vehicle. The drive module can also include a second hydraulic motor (or multiple hydraulic motors) configured to provide motive power. The transmission is configured to progress through its gears at ratio shifts of no less than 2:1 between adjacent gear positions. The transmission is configured to place the hydraulic motor in neutral during some portions of vehicle operation, and to engage the motor during other portions of vehicle operation.
摘要:
The present invention broadly comprises a power transmitting assembly for a vehicle, including a transmission power output for a manual transmission in the vehicle and a torque-filling element. The torque-filling element is arranged for connection to an engine in the vehicle, is connected to the transmission power output and is arranged to modify engine torque from the engine and to provide the modified engine torque to the transmission power output during a shift to a gear in the manual transmission. The torque-filling element includes a hydrodynamic torque-transmitting device, a rotation adjustment element to modify rotational speed associated with the engine, and a coupling element to interface the engine torque with torque on the transmission power output. In some aspects, the rotation adjustment element is arranged for connection to the engine. In some aspects, the coupling element is arranged for connection to the engine.
摘要:
A piston actuated synchronizer system for a split torque transmission where the piston is attached directly to the synchronizer shift collar on the synchronizer centerline to provide the required actuation in a small volume of space and resolve fork and rod deflection issues seen on other synchronizers that use such a system. The piston is pressure applied and spring released. This design also uses a displacement sensor to monitor synchronizer engagement.