摘要:
An outer circumference of a shift drum of a vehicle transmission is provided with at least one particular lead groove among multiple lead grooves which continuously extends beyond one circle of the shift drum. Two ends of the particular lead groove are arranged so as to be out of alignment with each other in the axial direction of the shift drum. A common shift position adapted to establish gear trains with two shift stages different from each other is set at one position corresponding to the two ends of the particular lead groove along the circumferential direction of the shift drum. The resulting configuration prevents an increase in the diameter of a shift drum and eliminates the significant change of the shape of a lead groove, even as the number of shift positions set on the shift drum is increased.
摘要:
An outer circumference of a shift drum of a vehicle transmission is provided with at least one particular lead groove among multiple lead grooves which continuously extends beyond one circle of the shift drum. Two ends of the particular lead groove are arranged so as to be out of alignment with each other in the axial direction of the shift drum. A common shift position adapted to establish gear trains with two shift stages different from each other is set at one position corresponding to the two ends of the particular lead groove along the circumferential direction of the shift drum. The resulting configuration prevents an increase in the diameter of a shift drum and eliminates the significant change of the shape of a lead groove, even as the number of shift positions set on the shift drum is increased.
摘要:
An automatic transmission assembly having a transmission unit including a plurality of gear pairs, a shift drum, a pair of clutches; and a controller. The controller performs a preliminary upshifting action in advance for angularly moving the shift drum depending on a next gear position in an upshifting direction while rotary drive power is being maintained at a given gear position, and when an upshifting command is output, the controller engages one of the clutches simultaneously with the command. When a downshifting command is output, the controller performs a preliminary downshifting action in advance based on the downshifting command. The partially neutral positions are provided between predetermined angular positions on the shift drum for temporarily reducing the angular speed of the shift drum when the shift drum is being angularly rotated.
摘要:
An automatic transmission assembly having a transmission unit including a plurality of gear pairs, a shift drum, a pair of clutches; and a controller. The controller performs a preliminary upshifting action in advance for angularly moving the shift drum depending on a next gear position in an upshifting direction while rotary drive power is being maintained at a given gear position, and when an upshifting command is output, the controller engages one of the clutches simultaneously with the command. When a downshifting command is output, the controller performs a preliminary downshifting action in advance based on the downshifting command. The partially neutral positions are provided between predetermined angular positions on the shift drum for temporarily reducing the angular speed of the shift drum when the shift drum is being angularly rotated.
摘要:
A shift controller with a first clutch CL1 that connects/disconnects the torque to a first main shaft and a second clutch CL2 connects/disconnects the torque to a second main shaft. A transmission is configured so that dog clutches DC1, DC2 for first speed and for second speed are engaged in a predetermined turned position P1-2 of a shift drum. A linear solenoid valve that supplies clutch oil pressure, a shift solenoid that switches a destination of the supply oil pressure between both clutches and a controller that controls the supply oil pressure and the turning of the shift drum are provided. The controller supplies predetermined oil pressure P1 to the CL2 in neutral, switches the destination of supply oil pressure to the CL1 when the shift drum is turned to P1-2 according to a shift instruction to engage gears and supplies maximum oil pressure P3 to the CL1 in predetermined time ta.
摘要:
A shift controller for a motor vehicle includes an electric motor configured to rotate a shift drum associated with a transmission. An oil temperature sensor is configured to detect temperature of lubricating oil for the transmission. A controller is configured to control the electric motor. The controller controls the electric motor to operate in a preset first motor duty until a first predetermined time elapses after operation of the electric motor is started when the shift drum is turned from a first predetermined position to a second predetermined position. The controller is also configured to operate the electric motor in a second motor duty calculated based upon oil temperature after the first predetermined time elapses.
摘要:
A shift controller for a motor vehicle includes an electric motor configured to rotate a shift drum associated with a transmission. An oil temperature sensor is configured to detect temperature of lubricating oil for the transmission. A controller is configured to control the electric motor. The controller controls the electric motor to operate in a preset first motor duty until a first predetermined time elapses after operation of the electric motor is started when the shift drum is turned from a first predetermined position to a second predetermined position. The controller is also configured to operate the electric motor in a second motor duty calculated based upon oil temperature after the first predetermined time elapses.
摘要:
An inverter terminal board and packing capable of performing a packing function even when variations due to assembly tolerances of a motor and an inverter are great and large relative movement occurs between the inverter and the motor are provided. In an inverter terminal board 10 including an electric conductor 20 which has an inverter side connecting terminal 20T attached to a case of a motor and a connector terminal 20C for supplying power to a power receiving terminal of the motor and is made by connecting the connecting terminal 20T to the connector terminal 20C, the inverter terminal board in which the connector terminal 20C has a flat plate shape and packing 30 is attached over the entire periphery of the connector terminal 20C, a wall thickness of a portion abutting on a flat plate side of the flat plate-shaped terminal in the entire periphery of the packing 30 is made thicker than a wall thickness of the other portion.
摘要:
A terminal includes an elastic contact piece. The elastic contact piece comes into elastic contact with a counterpart terminal in a terminal container. The elastic contact piece includes a bent portion bent and extending from a portion of a side wall of the terminal container in the terminal container, and a clamping portion extending from a front end of the bent portion in the terminal container along an extending direction of the side wall. A dimension of the clamping portion is longer than a dimension of the bent portion in the extending direction, so as to prevent a foreign substance from entering between an inner wall of the terminal container and the clamping portion.
摘要:
A valve timing adjusting system includes a displacement mechanism unit that displaces a camshaft rotational phase relative to a crankshaft, a locking mechanism unit that locks the rotational phase, and a control unit that controls operations of a hydraulic control valve. The control unit includes a property obtainment unit that obtains property information regarding hydraulic properties, and a lock release process completes locking release by supplying oil pressure to the locking mechanism unit for moving the rotational phase from an intermediate locked phase toward one of a retard/advance position, and then supplying oil pressure to the locking mechanism unit for moving the rotational phase toward the other of the retard/advance position; the rotational phase stands by at a predetermined position of the one of the retard/advance position past the intermediate locked phase during the lock release process, until a standby time has elapsed.