A transmission system for a vehicle having a belt drive transmission. The belt drive has an adjustable input:output ratio, where the output of the belt drive is provided as a first input to a differential coupling. A further rotating connection is provided as a second input to the differential coupling, so that the output of the differential coupling is arranged as the output of the transmission system. Accordingly, the transmission output is based on the aggregate sum of the rotation of the first and second inputs to the differential coupling, wherein adjustment of the input:output ratio of the belt drive allows for a continuously variable transmission system.

Methods and systems are provided for an actuation system for a driveline shifting member in a transmission system of a vehicle. In one example, a system may include an actuator coupled to a lever arm via one or more parallel axis gears, and a shaft connecting the lever arm to a driveline shifting member, the lever arm driven via a rolling element housed within a slot in the lever arm aligned with a center of a parallel axis gear of the one or more parallel axis gears.

A shift device for an outboard motor includes a forward gear and a reverse gear; a clutch gear; a shift actuator configured to move between a neutral reference position where the clutch gear is disengaged from the forward gear and the reverse gear and an engagement reference position where the clutch gear is engaged with the forward gear or the reverse gear; and a control device configured to control a movement of the shift actuator. The control device is configured to set an intermediate target position, and to set a speed at which the shift actuator moves from the intermediate target position to the engagement reference position slower than a speed at which the shift actuator moves from the neutral reference position to the intermediate target position.

A transmission system for a work vehicle includes a transmission. The transmission includes one or more input shafts, one or more output shafts, and shafts disposed in-between. The transmission includes gear sets disposed on the shafts, wherein the gear sets include intermediate gear sets. The transmission includes clutches disposed along the shafts, wherein each of the clutches is configured to selectively couple a respective gear set of the gear sets corresponding to a respective power flow path of the transmission. The transmission also includes a forward coupler and a reverse coupler each disposed on one of the shafts. The transmission system also includes a controller configured to receive a signal indicative of a shuttle shift, and in response to receiving the signal, instruct the clutches to stop rotation of the intermediate gear sets and subsequently shuttle shift between forward and reverse directions.

A control device supplies electric power to a shift-by-wire system to a sub power supply until starting of an engine by automatic start control is completed after the engine has been stopped by automatic stop control. The control device performs a stopped range switching process in response to outputting of a signal for requiring switching of a shift range from a selection device when electric power is supplied from the sub power supply to the shift-by-wire system. In the stopped range switching process, the shift range is switched to a selected shift range when a voltage of the sub power supply is equal to or greater than a threshold value. On the other hand, the shift range is switched to a neutral range when the voltage of the sub power supply is less than the threshold value.

A manual mode training system for a vehicle having a manual transmission or a “manual mode” transmission controlled by a paddle shifter. The system includes a sensor to obtain force and position information from a foot pedal of the vehicle, and a processor to receive the information. Based on the information, the processor may predict an intended vehicle response, determine an appropriate gear to achieve the intended vehicle response, and notify a driver, through a haptic feedback mechanism, how to shift the transmission of the vehicle to reach the appropriate gear. A corresponding method is also disclosed and claimed herein.

A method for transmitting a shift signal of an electronic shift system, may include transmitting the shift signal generated at the time of operating a shift operation device, wherein the shift operation device is configured so that one shift stage and one shift signal are matched one to one and transmits shift signals which are each individually separated according to the shift stage.

A method to control a road vehicle for the execution of a multiple downshift in a drivetrain provided with a servo-assisted transmission; the control method comprises the steps of: detecting a condition of slowing down of the road vehicle and, simultaneously, detecting a driver's request for a multiple downshift; carrying out, in succession, a plurality of downshifts while the road vehicle is slowing down and in an autonomous manner regardless of further interventions of the driver; determining a duration of a shift time interval; and carrying out each downshift following a first downshift when said shift time interval has exactly elapsed since the previous downshift.

A method of controlling an automated manual transmission system having a transmission and a shifter is provided. The shifter includes a Drive Mode, a Low Mode and at least one of a Manual Mode and a Hold Mold. The Drive Mode automatically selects a default gear of the transmission and automatically performs all upshifts and downshifts. The Manual Mode permits an operator to manually select an upshift and a downshift of the transmission. The Hold Mode permits an operator to maintain a current operating gear. Control determines whether the shifter is in one of the Manual Mode and the Hold Mode. Control determines whether a vehicle operating condition is outside of a predetermined threshold. Control operates the transmission in Drive Mode based on the vehicle operating condition being outside of the predetermined threshold irrespective of the shifter being in one of the Low Mode, Manual Mode or Hold Modes.

A controller includes: an automatic shifting control section that carries out automatic shifting control in which a shifting actuator is driven in response to a predetermined automatic shifting command; and an interference prevention control section that controls the automatic shifting control section so as to prohibit simultaneous occurrence of a manual shifting process induced by operation of a shifting operation member and an automatic shifting process induced by the shifting actuator.