摘要:
Provided is a control device for an automatic transmission that can quickly respond to a new shift request for connecting an engaging clutch during shifting process to release the engaging clutch. The control device is provided with: an automatic transmission (3) having an engaging clutch (83) as shift element, and a shift controller (21) which controls shifting of the automatic transmission (3), wherein, when a downshift request for engaging the engaging clutch (83) is generated before determination of complete release of the engaging clutch (83) during upshift control for releasing the engaging clutch (83) in response to an upshift request, the downshift control in response to the downshift request is executed.
摘要:
Provided is a control device for an automatic transmission that can prevent deterioration in durability of an engaging clutch even when a new shift request for engaging the engaging clutch is generated during shift control for releasing the engaging clutch. The control device is provided with: an automatic transmission (3) having an engaging clutch (83) as shift element, and a shift controller (21) which controls shifting of the automatic transmission (3), wherein, when a downshift request for engaging the engaging clutch (83) is generated during upshift control for releasing the engaging clutch (83) in response to an upshift request and is generated after the releasing start of the engaging clutch (83) has been determined, the upshift control in response to the upshift request is continued.
摘要:
Provided is an electric vehicle shift control device which may suppress the occurrence of busy shifting. The shift control device is installed in the electric vehicle including a motor generator (MG) as the drive source, and an automatic transmission (3) which is connected to the motor generator (MG); this electric vehicle shift control device is provided with a shift controller (21) which performs shift control of the automatic transmission (3) using a shift line previously prepared, wherein the shift controller (21) has, as shift lines, an electricity consumption prioritized shift line configured with priority place to improve electricity consumption ratio and a driving force prioritized shift line with priority placed on suppression of the shift frequency. Further, the shift control device is configured, after completion of shift control using the electricity consumption prioritized shift line, to use the driving force prioritized shift line for a predetermined time.
摘要:
A crankshaft is normally and reversely rotated at a constant speed, during which the singular points ((a), (b), (c), (d)) of crankshaft driving motor current (i) responding to the drive torque change of the crankshaft are detected. A crankshaft rotational angle reference point is set based on the midpoint between the crankshaft rotational positions obtained when, among these singular points ((a), (b), (c), (d)), singular points having the same type (same symbol) appear during the respective normal and reverse rotations. Therefore, the crankshaft rotational angle reference point can be reliably set regardless of the variations and errors.
摘要:
A control method of a transmission is a control method of a transmission mounted on a vehicle and includes performing of phase advance compensation in a speed ratio control system and making of an advance amount according to a vibration frequency of torsional vibration of an input shaft of the transmission which is the advance amount of phase advance compensation variable in accordance with an operation state of the vehicle.
摘要:
Provided is an electric vehicle shift control device which may suppress the occurrence of busy shifting. The shift control device is installed in the electric vehicle including a motor generator (MG) as the drive source, and an automatic transmission (3) which is connected to the motor generator (MG); this electric vehicle shift control device is provided with a shift controller (21) which performs shift control of the automatic transmission (3) using a shift line previously prepared, wherein the shift controller (21) has, as shift lines, an electricity consumption prioritized shift line configured with priority place to improve electricity consumption ratio and a driving force prioritized shift line with priority placed on suppression of the shift frequency. Further, the shift control device is configured, after completion of shift control using the electricity consumption prioritized shift line, to use the driving force prioritized shift line for a predetermined time.
摘要:
In the case of the backward rotation of the crankshaft in the same direction as the direction of the load torque, the unlocking requires a higher unlocking torque. Here, an explanation is made regarding the case when the rotational angle θ of the crankshaft tracks the crankshaft rotational angle instruction value tθ shown in the figure. During the period from the unlocking control start time t1 to the end time t2, without setting the target motor torque Tm for controlling the rotational position as the motor torque, only the unlocking torque TLoff is set; when t2 is reached, as TLoff equals 0, only the target motor torque Tm for controlling the rotational position is set as the motor torque. When this measure is not used, due to the mutual interference between the Tm and the TLoff, as indicated by the bold dashed line, the unlocking is delayed. However, by setting the motor torque to equal Tm during the period of t1 to t2, it is possible to avoid the problem caused by the delay in the unlocking.