摘要:
A first determining unit configured to determine whether the indicated pressure of a primary pulley pressure has become a line pressure during an up shift, an indicated pressure control unit configured to make the indicated pressure of the primary pulley pressure alone higher than the line pressure when the target shift rate is determined to be equal to or lower than a predetermined shift rate and the speed ratio is determined not to have become the target speed ratio, and an estimated time detecting unit configured to detect a predetermined time it takes until the primary pulley pressure can be regarded as being equal to the line pressure after the target shift rate is determined to be equal to or lower than the predetermined shift rate, and the indicated pressure of the primary pulley pressure is made higher than the line pressure, are provided, and the indicated pressure control unit is configured to calculate the deviation between the indicated pressure of the primary pulley pressure and indicated pressure of the line pressure after the estimated predetermined time is over, and control transmission of a continuously-variable transmission while maintaining the deviation after the predetermined time is over.
摘要:
A continuously-variable transmission, which has a first pulley, which has a first fixed pulley and a first mobile pulley, a second pulley, which has a second fixed pulley and a second mobile pulley, and a drive force transmitting member, which is stretched between the first pulley and the second pulley, is provided, and this continuously-variable transmission has an indicated pressure calculation section, which calculates the indicated pressure of the first pulley, a stroke speed calculation section, which calculates the stroke speed of the first mobile pulley, and an oil pressure calculation section, which, when oil is discharged from an oil chamber, calculates the amount of increase of oil pressure in a first pulley oil chamber that increases compared to the indicated pressure due to the channel resistance of the discharge path, based on the channel resistance and the stroke speed, and a correction section, which, when oil is discharged from the first pulley oil chamber, subtracts the amount of increase of oil pressure from the first pulley pressure based on a target speed ratio and input torque, and corrects the indicated pressure of the first pulley.
摘要:
When a through speed ratio, which is an overall speed ratio of a variator and a subtransmission mechanism, varies from a larger speed ratio than a mode switch speed ratio to a smaller speed ratio than the mode switch speed ratio, a gear position of the subtransmission mechanism is changed from a first gear position to a second gear position. The mode switch speed ratio is set at a through speed ratio obtained when the speed ratio of the variator is a Highest speed ratio and the gear position of the subtransmission mechanism is the first gear position.
摘要:
A first determining unit configured to determine whether the indicated pressure of a primary pulley pressure has become a line pressure during an up shift, an indicated pressure control unit configured to make the indicated pressure of the primary pulley pressure alone higher than the line pressure when the target shift rate is determined to be equal to or lower than a predetermined shift rate and the speed ratio is determined not to have become the target speed ratio, and an estimated time detecting unit configured to detect a predetermined time it takes until the primary pulley pressure can be regarded as being equal to the line pressure after the target shift rate is determined to be equal to or lower than the predetermined shift rate, and the indicated pressure of the primary pulley pressure is made higher than the line pressure, are provided, and the indicated pressure control unit is configured to calculate the deviation between the indicated pressure of the primary pulley pressure and indicated pressure of the line pressure after the estimated predetermined time is over, and control transmission of a continuously-variable transmission while maintaining the deviation after the predetermined time is over.
摘要:
A continuously-variable transmission, which has a first pulley, which has a first fixed pulley and a first mobile pulley, a second pulley, which has a second fixed pulley and a second mobile pulley, and a drive force transmitting member, which is stretched between the first pulley and the second pulley, is provided, and this continuously-variable transmission has an indicated pressure calculation section, which calculates the indicated pressure of the first pulley, a stroke speed calculation section, which calculates the stroke speed of the first mobile pulley, and an oil pressure calculation section, which, when oil is discharged from an oil chamber, calculates the amount of increase of oil pressure in a first pulley oil chamber that increases compared to the indicated pressure due to the channel resistance of the discharge path, based on the channel resistance and the stroke speed, and a correction section, which, when oil is discharged from the first pulley oil chamber, subtracts the amount of increase of oil pressure from the first pulley pressure based on a target speed ratio and input torque, and corrects the indicated pressure of the first pulley.