Kawasaki Motors, Ltd.

Katsuya Sano

Satoaki Ichi

Masaki Nishiyabu

Yuji Hida

Kyohei Izumi

Shohei Terai

A controller of a vehicle is a controller of a vehicle including: a driving source; a driving wheel; a first transmitting structure; a second transmitting structure which is connected to the first transmitting structure so as to be movable relative to the first transmitting structure in a power transmitting direction within a range of a play; a clutch located on the power transmitting path and between the driving source and the first transmitting structure; and a clutch actuator. The controller determines whether or not a relative position of the first transmitting structure relative to the second transmitting structure changes. When it is determined that the relative position changes, the controller controls the clutch actuator to change a power transmission rate such that collision force of one of the first transmitting structure and the second transmitting structure with respect to the other by the change in the relative position is reduced.

Controller of vehicle and method of controlling vehicle

There is provided a transmission control device that controls a first prime mover and a second prime mover of which output responsiveness is different from each other. A processing circuitry of the transmission control device executes a process including: in response to a shift command, calculating each target rotational speed of the first prime mover and the second prime mover for a synchronous control that brings one of rotational speeds of a dog and a transmission gear at the second transmission gear position close to the other; and determining a first timing or a second timing such that the second timing is later than the first timing, the first timing being a time at which the synchronous control of the first prime mover is started, and the second timing being a time at which the synchronous control of the second prime mover is started.

Transmission control device

There are provided a transmission control device and a transmission control method that controls a prime mover in a system including the prime mover and a gear transmission. A processing circuitry of the transmission control device executes a process including: determining whether to fall into a predetermined situation at a time of acquiring a shift command; when it is determined as being the predetermined situation, starting a separation control that adjusts an output of the prime mover such that a dog is separated from an abutment surface against which the dog abuts at the time of acquiring the shift command; and after the separation control is completed and before the dog at the first transmission gear position moves out of an accommodation space at the first transmission gear position, starting a synchronous control relating to the dog and transmission gears.

Transmission control device and transmission control method

A hybrid vehicle includes: a crankcase having a main chamber formed in a case body and accommodating at least a crankshaft, an input shaft, an output shaft, and a gear train, the crankcase further having a subsidiary chamber formed between the case body and a cover and accommodating at least a main clutch; a rotary member disposed in the subsidiary chamber so as to be capable of power transmission to the input shaft; and a power transmission member that transmits drive power from a drive motor to the rotary member.

Hybrid vehicle

A straddle vehicle includes: a shift drum that makes a shift change of a transmission including a plurality of gear trains; a transmission case enclosing the shift drum, the transmission case including a side wall portion provided with an insertion hole into which an end portion of the shift drum is inserted; and an actuator unit secured to an outer surface of the side wall portion, the actuator unit including a drive shaft that outputs drive power to rotate the shift drum, the drive shaft having the same rotational axis as the shift drum and being connected to the shift drum on the rotational axis.

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Kakogawa, Japan

Katsuya Sano