The present invention relates to a saddle-ride type vehicle comprising a clutch assembly (4), interposed between an engine (2) and a gearbox (3), which includes a clutch device (11) in turn comprising two clutch elements (one integral with the shaft of the engine and the other with the input shaft of the gearbox) and return means (12) that keep these elements (11A, 11B) in contact in a closure condition of the clutch. According to the invention, the clutch assembly (4) further comprises an operating device (21) of the clutch device that causes detachment of the elements (11A, 11B) of the clutch device up to an opening condition of the clutch assembly. This latter further comprises a control device (6) to limit the torque peaks during gear change. This device comprises an actuation means (5) that, during gear change, exerts a predetermined force (S) in contrast to the force exerted by said return means (12) of the clutch assembly, wherein said predetermined force (S) is less than the force (F) generated by the return means (12) so as to cause a mutual slip of the elements (11A, 11B) of the clutch device (11) without said opening condition being reached. The operating device (21) is of hydraulic type and comprises a primary pump (22) operated by means of a control lever (23), wherein this primary pump (22) is hydraulically connected, through a primary hydraulic circuit (16), to a primary piston (24) acting on at least one of the elements (11A, 11B) of the clutch device (11) in opposition to the return means (12) so that, following an action on the control lever (23), the primary piston (24) exerts an action the elements (11A, 11B) determining the opening condition. According to the invention, the control device (6) comprises a secondary piston (25) connected to the primary piston (24), wherein the actuation means (5) exerts, directly or indirectly, the predetermined force (S) on the secondary piston (25), said predetermined force (S) being transferred to the primary piston (24) in opposition to the force (F) of the return means (12).

A gear-position learning device for an automatic clutch transmission includes a transmission configured to be shifted by an operation of a driver of a vehicle, a clutch device disposed in a transmission path between the transmission and an engine and configured to be connected and disconnected by actuation of a clutch actuator, a controller configured to control connection and disconnection of the clutch device performed by the clutch actuator, a shift drum configured to rotate according to a shift operation that the driver performs on a shift operator and switch the shift stage of the transmission, and a rotational position defining mechanism configured to define a rotational position of the shift drum, wherein the controller has a learning mode for learning a rotation angle of the shift drum and is configured to control connection and disconnection of the clutch device during the learning mode such that the shift drum is at a rotational position determined by the rotational position defining mechanism.

A gear-position learning device for an automatic clutch transmission includes a transmission configured to be shifted by an operation of a driver of a vehicle, a clutch device disposed in a transmission path between the transmission and an engine and configured to be connected and disconnected by actuation of a clutch actuator, a controller configured to control connection and disconnection of the clutch device performed by the clutch actuator, a shift drum configured to rotate according to a shift operation that the driver performs on a shift operator and switch the shift stage of the transmission, and a rotational position defining mechanism configured to define a rotational position of the shift drum, wherein the controller has a learning mode for learning a rotation angle of the shift drum and is configured to control connection and disconnection of the clutch device during the learning mode such that the shift drum is at a rotational position determined by the rotational position defining mechanism.

A vehicle control device includes a user-depressible portion that in some examples takes the form of a third foot pedal. The user-depressible portion may be depressed to varying degrees and then released to varying degrees. The degree and type of pedal movement is analyzed to determine one of a predetermined plurality of vehicle control functions that the drives wishes to perform.

Methods and systems for automatic braking for vehicles having a manual transmission are disclosed. An exemplary method includes providing a vehicle with at least one vehicle sensor, at least one actuator, and a controller in communication with the at least one vehicle sensor and the at least one actuator, determining a vehicle speed and an engine speed, receiving sensor data from the at least one vehicle sensor, calculating if the vehicle speed should be reduced based on the sensor data from the at least one vehicle sensor, generating a first control signal if the vehicle speed should be reduced, calculating if the engine speed is below a predetermined idle speed, generating a second control signal if the engine speed is below the predetermined idle speed, and automatically controlling the at least one actuator based on the first and second control signals.

The present invention relates to a saddle-ride type vehicle comprising a clutch assembly (4), interposed between an engine (2) and a gearbox (3), which includes a clutch device (11) in turn comprising two clutch elements (one integral with the shaft of the engine and the other with the input shaft of the gearbox) and return means (12) that keep these elements (11A, 11B) in contact in a closure condition of the clutch. According to the invention, the clutch assembly (4) further comprises an operating device (21) of the clutch device that causes detachment of the elements (11A, 11B) of the clutch device up to an opening condition of the clutch assembly. This latter further comprises a control device (6) to limit the torque peaks during gear change. This device comprises an actuation means (5) that, during gear change, exerts a predetermined force (S) in contrast to the force exerted by said return means (12) of the clutch assembly, wherein said predetermined force (S) is less than the force (F) generated by the return means (12) so as to cause a mutual slip of the elements (11A, 11B) of the clutch device (11) without said opening condition being reached. The operating device (21) is of hydraulic type and comprises a primary pump (22) operated by means of a control lever (23), wherein this primary pump (22) is hydraulically connected, through a primary hydraulic circuit (16), to a primary piston (24) acting on at least one of the elements (11A, 11B) of the clutch device (11) in opposition to the return means (12) so that, following an action on the control lever (23), the primary piston (24) exerts an action the elements (11A, 11B) determining the opening condition. According to the invention, the control device (6) comprises a secondary piston (25) connected to the primary piston (24), wherein the actuation means (5) exerts, directly or indirectly, the predetermined force (S) on the secondary piston (25), said predetermined force (S) being transferred to the primary piston (24) in opposition to the force (F) of the return means (12).

A clutch control system for a work vehicle includes a controller comprising a memory and a processor. The controller is configured to receive a first signal indicative of an inching pedal position and to determine a commanded inching torque based on the inching pedal position. The controller is configured to instruct an inching clutch to achieve the commanded inching torque while the commanded inching torque is less than a threshold inching torque. The controller is configured to instruct the inching clutch to achieve the threshold inching torque while the commanded inching torque is equal to or greater than the threshold inching torque. Herein the threshold inching torque is calculated based at least in part on a gear ratio established by engaging one or more clutches between an engine of the work vehicle and the inching clutch.

Methods and systems for automatic braking for vehicles having a manual transmission are disclosed. An exemplary method includes providing a vehicle with at least one vehicle sensor, at least one actuator, and a controller in communication with the at least one vehicle sensor and the at least one actuator, determining a vehicle speed and an engine speed, receiving sensor data from the at least one vehicle sensor, calculating if the vehicle speed should be reduced based on the sensor data from the at least one vehicle sensor, generating a first control signal if the vehicle speed should be reduced, calculating if the engine speed is below a predetermined idle speed, generating a second control signal if the engine speed is below the predetermined idle speed, and automatically controlling the at least one actuator based on the first and second control signals.

Electronic pedal control systems and methods for a vehicle are provided. One electronic pedal control system includes a first sensor configured to produce a first output corresponding to a user applied force and a second sensor configured to produce a second output corresponding to a release of user applied force. A controller is configured to receive the first output and the second output and to control one of a brake system, a clutch system, and a throttle system of the vehicle based on the first and second outputs, and the first and second sensors are positioned relative to one another such that an application of force to the first sensor unloads the second sensor and the removal of force from the first sensor loads the second sensor.