摘要:
A method for controlling the pressure of hydraulic fluid supplied within a transmission (24) of a work vehicle (10). The method may generally include receiving a signal associated with a load condition of the work vehicle (10), determining a desired pressure for the hydraulic fluid supplied within the transmission (24) based on the load condition and controlling a valve (108) such that hydraulic fluid is supplied within the transmission (24) at the desired pressure, wherein the transmission (24) includes an input shaft (30), a counter shaft (32) and at least two driven shafts (34, 36, 38) extending parallel to the input (30) and counter shafts (32).
摘要:
When the driver requests to start the vehicle with the brake OFF and depressing on the accelerator pedal APO, and thereby a target drive torque exceeds a gradient load, prior to exceeding, in order to avoid excess current being supplied to the motor, the upper limit of motor speed tNm, which is the input speed of a second clutch is set to a value less than a slip detectable limit value ωLLIM at which it becomes possible to detect slip rotation, i.e. the difference over the output side rotation speed. When the target drive torque exceeds the gradient load, the lower limit of the input speed of the second clutch (the motor speed tNm) is set to a value equal to or greater than ωLLIM so that the required driving force can be achieved by the gradient load corresponding driving force control.
摘要:
L'invention a pour objet un procédé de surveillance d'un embrayage (2) dans une chaîne de transmission de puissance comportant une source de couple acyclique (1) et un embrayage (2) ne filtrant qu'une partie des acyclismes, caractérisé par l'observation d'un taux d'acyclisme après filtration et l'estimation du glissement à partir des variations dudit taux d'acyclisme. Elle s'applique notamment au contrôle et à la détection du glissement dans des embrayages de véhicules automobiles.
摘要:
The invention relates to a method and device for operating a clutch between an internal combustion engine and at least one driven wheel of a vehicle. A torque is transmitted between the internal combustion engine and the driven wheel on pressing the clutch together, by means of a compression force or compression pressure. Said compression force or compression pressure is regulated depending on a clutch slip in the clutch on transferral of torque between the internal combustion engine and the driven wheel and a set clutch slip value.
摘要:
A clutch engagement control device capable of engaging a clutch without shock and quickly even when a clutch engagement starting point changes. A clutch engagement control device (100) engaging a friction clutch (1) using an actuator (3), wherein a magnetostrictive sensor (71) detects the power transmission condition of the friction clutch (1), and the speed of the engagement of the friction clutch (1) is made a first engagement speed until the magnetostrictive sensor (71) detects the start of transmission of the power and changed to a second engagement speed slower than the first one when the magnetostrictive sensor (71) detects the start of transmission of the power so as to gradually increase the power transmission rate by starting the power transmission of the friction clutch (1) from the power non-transmission state of the friction clutch (1).
摘要:
A clutch characteristic learning apparatus of a hybrid vehicle (100) includes: an engine (1); a clutch (2) transmitting an engine torque from the engine (1) as a clutch transmission torque according to a stroke amount of an operation member (215) with respect to an input shaft (31) of a transmission (3); a motor generator (6) capable of outputting a motor torque to the input shaft (31) or an output shaft (32) of the transmission (3); and a controller (9) varying the stroke amount, in a state in which the motor torque is output to the input shaft side by the motor generator (6) and the input shaft (31) is controlled at a constant number of rotations by the motor generator (6), and generating a torque map of the clutch transmission torque and the stroke amount, based on a relationship between the stroke amount when being varied and an amount of change of the motor torque.
摘要:
A control system (60) including a calibration routine is provided for a vehicle drive line having an automated master friction clutch (14). The control system (60) utilizes engine torque data supplied by a serial communication data link to identify a clutch control parameter value corresponding to an urge-to-move position of the clutch (14). The clutch control parameter value identified by the calibration routine is stored and utilized by the control system (60) to control the engagement position of the automated clutch (14) in an "urge to move" mode of operation. The inventive calibration method can be utilized across multiple vehicle platforms having different engine, clutch and transmission system components.
摘要:
A control system (60) and calibration method are provided for a vehicle drive line having an automated master friction clutch (14). The control system (60) utilizes engine torque data supplied by a serial communication data link to identify a clutch control parameter value corresponding to an urge-to-move position of the clutch (14). The clutch control parameter value identified by the calibration method is stored and utilized by the control system (60) to control the engagement position of the automated clutch (14) in an "urge to move" mode of operation. The inventive calibration method can be utilized across multiple vehicle platforms having different engine, clutch and transmission system components.