A power train component such as a gearbox includes driving and driven, coaxially arranged cooperating gears which engage each other via teeth. The engaging end surfaces of the teeth are provided with a first chamfer and a second chamfer, in which the chamfer edge is offset from bisecting the tooth. Preferably the offset chamfer edges are provided on both a driving gear (shifter), axially positionable using a shifting fork on a shift drum, and a driven low gear. In one preferred driving gear (shifter) design, the offset chamfer edges are only provided for the side engaged when the shifting fork moves against a spring force. The invention facilitates smoother and less binding movement between the non-engaged and the engaged axial positions, such that the gear can be more easily shifted by the shifting fork in at least one direction.

An operating device for a vehicle comprises an outer unit that can be rotated manually, a detection device configured to detect the movement of the outer unit and generate a control signal using a value that characterizes the movement to control a vehicle function, and an actuator unit that contains a magnetorheological medium, which can be or is coupled to the outer unit and is configured to exert a retaining force on the outer unit based on the viscosity of the magnetorheological medium. The operating device also comprises a sensor unit located in the outer unit and configured to generate a hand signal indicating the absence of a user's hand on the outer unit, and a manipulating device for manipulating the control signal on the basis of the hand signal.

The present invention is to obtain a control device and a control method capable of appropriately assisting driving of a straddle-type vehicle by a rider.

In a control device (12) and a control method of the present invention, an acquisition section of the control device (12) configured to control an operation of a straddle-type vehicle (10) acquires prediction information about a future lane change by a preceding vehicle that travels ahead of the straddle-type vehicle (10), and a control section of the control device (12) causes the straddle-type vehicle (10) to execute a safety operation (for example, causes a notification device (15) to issue a warning of the lane change to the rider), when the prediction information satisfies a determination criterion during a slipping-through traveling of the straddle-type vehicle (10).

A gearshift lock for a gearbox includes a gearshift cylinder and a pawl wheel with a toothing. The gearshift lock includes a rotatably positioned pawl, and the pawl engages in the toothing of the pawl wheel in a locked position, and is disengaged from the pawl wheel in a freewheeling position. The pawl is pretensioned by a spring element in the direction of the locked position, and an engagement element is connected to the pawl. The engagement element holds the pawl in the freewheeling position by directly interacting with the gearshift cylinder against the effect of the spring element when the gearshift cylinder takes up a rotational position in a freewheeling rotational range, and the pawl can be released from the gearshift cylinder into a locked position by the engagement element when the gearshift cylinder takes up a rotational position in a locked rotational range.

A method for providing a prediction of a radius of a motorcycle turn, the method may include determining that the motorcycle is about to turn; predicting values of multiple radius of turn impacting (RTI) parameters; wherein the multiple RTI parameters are selected out of a group of parameters, wherein the selection was made during a machine learning training process, and the group of parameters comprises motorcycle kinematic parameters; determining, based on the determined values of the multiple RTI parameters, the estimated radius of the motorcycle turn; and performing a driving related operation based on the estimated radius of the motorcycle turn.

The present invention relates to saddle-ride type vehicle, motorcycle or motorbike, comprising a frame (2), at least a steering wheel (3) rotatably connected to the frame and a single driving wheel (4). The vehicle further comprises a motor assembly (10) and a transmission unit (T) that mechanically connects the motor assembly (10) to the driving wheel. The motor assembly comprises a thermal engine (MT) including a crankshaft (11), an electric machine (E) including a stator(S) and a rotor (R), and a clutch (C) including a driving shaft (C1) and a driven shaft (C2). The motor assembly (10) further comprises a gearbox (G) provided with an input shaft (111) and an output shaft (112). According to the present invention the crankshaft (11) of the thermal engine (MT), the rotor (R) of the electric machine (E) and the two shafts (C1, C2) of the clutch are coaxial so as to rotate around a common rotation axis (101) which is parallel to a longitudinal direction (Y) of the vehicle and parallel to the rotation axis of the output shaft (112) of said gearbox (G).

To obtain a rider-assistance system capable of providing a rider of a straddle-type vehicle with a sense of comfort and safety during a turn, and a control method for such a rider-assistance system.

The present invention provides the rider-assistance system that assists with driving by the rider of the straddle-type vehicle and includes a controller. The controller includes: an object identification section that identifies an object approaching a side of the straddle-type vehicle on the basis of output of a communication device that wirelessly receives information output from infrastructure equipment or another vehicle; a body position information acquisition section that acquires position information of at least a part of a body of the rider on the turning straddle-type vehicle; a collision possibility determination section that determines a collision possibility of the rider with the object identified by the object identification section on the basis of the position information acquired by the body position information acquisition section; and a safety operation performing section that causes the rider-assistance system to perform safety operation in the case where the collision possibility determination section determines that the collision possibility is high.

Provided is a vehicle control device capable of preventing a delay in driver's bank angle operation during traveling of a straddle type vehicle on a curve and enhancing safety of the vehicle. The vehicle control device 100 is a device that is mounted on a two-wheeled motor vehicle and controls the vehicle to travel while following a preceding vehicle. The vehicle control device 100 includes a curvature acquisition unit 110 that acquires a curvature of a road in front of the vehicle and a driving force control unit 120 that limits a change amount of driving force of the vehicle per unit time based on the curvature acquired by the curvature acquisition unit 110.

An engine output control device controls engine output at a time of a downshift speed change of a transmission. The engine output control device includes: engine speed detecting means for detecting an actual engine speed NeJ of a crankshaft; and engine output adjusting means capable of adjusting the engine output according to an operation of a rider. The smaller of a requested engine output PA calculated on a basis of the actual engine speed NeJ and a rider requested engine output PB adjusted by the engine output adjusting means is output as the engine output.

An air-intake device comprises a vehicle body frame including a head box; and a pair of right and left main frames, wherein the head box includes: a casing section which extends between a front opening and a rear opening of the head box and is formed with a main air passage; and a pair of right and left extending sections coupled to the pair of main frames, respectively, wherein at least one extending section is provided with a branch air passage which branches from the main air passage, and wherein a separating wall is provided between the main air passage and the branch air passage and has a communication hole, and wherein when a vehicle body is viewed from a side, at least one extending section is extended rearward to a location at which at least a front region of the communication hole is covered by the extending section.