A drive force control device for a vehicle having a continuously variable transmission that varies an output rotation of a motive force source and transmits a rotation after variation to a drive wheel includes an accelerator pedal opening sensor that detects an accelerator opening of an accelerator pedal with which the vehicle is provided, and a programmable controller programmed to calculate a target drive force on the basis of the accelerator opening, calculate a target transmission input rotation speed on the basis of the target drive force, calculate a target transmission input torque on the basis of the target drive force, control a speed ratio of the continuously variable transmission to realize the target transmission input rotation speed, and control an output torque of the motive force source to realize the target transmission input torque.

A slip control method and arrangement for a drivetrain including a continuously variable transmission, forward-reverse clutch arrangement and an optional three-speed gearbox is described herein. The forward-reverse clutch arrangement includes a clutch that is so controlled as to slip when a torque higher than the usable torque attempts to pass through. Accordingly, the clutch prevents the prime mover from stalling.

A slip control method and arrangement for a drivetrain including a continuously variable transmission, forward-reverse clutch arrangement and an optional three-speed gearbox is described herein. The forward-reverse clutch arrangement includes a clutch that is so controlled as to slip when a torque higher than the usable torque attempts to pass through. Accordingly, the clutch prevents the prime mover from stalling.

A control apparatus for a linear solenoid valve configured to regulate a hydraulic pressure in a vehicle transmission. The control apparatus includes a hydraulic control portion configured to output a control command signal that is applied to a solenoid of the linear solenoid valve. The hydraulic control portion outputs, as the control command signal, a regulating control command signal by which the hydraulic pressure is to be regulated to a regulated pressure value that is dependent on a vehicle driving state. When the regulated pressure value is in a certain pressure range in which vibration-based noise is likely to be generated by vibration of the linear solenoid valve that is operated with the regulating control command signal being applied to the solenoid, the hydraulic control portion outputs, as the control command signal, a noise-restraining command signal by which generation of the vibration-based noise is restrained.

A control apparatus for a linear solenoid valve configured to regulate a hydraulic pressure in a vehicle transmission. The control apparatus includes a hydraulic control portion configured to output a control command signal that is applied to a solenoid of the linear solenoid valve. The hydraulic control portion outputs, as the control command signal, a regulating control command signal by which the hydraulic pressure is to be regulated to a regulated pressure value that is dependent on a vehicle driving state. When the regulated pressure value is in a certain pressure range in which vibration-based noise is likely to be generated by vibration of the linear solenoid valve that is operated with the regulating control command signal being applied to the solenoid, the hydraulic control portion outputs, as the control command signal, a noise-restraining command signal by which generation of the vibration-based noise is restrained.

A control device and a transmission system are provided that allow for comfortable traveling with a human-powered vehicle. The control device includes an electronic controller configured to control a transmission to shift a transmission ratio of a human-powered vehicle in accordance with a first shifting condition set based on a first reference value. The electronic controller is configured to shift the transmission ratio of the human-powered vehicle regardless of the first shifting condition upon determining a second shifting condition set based on travel information related to traveling of the human-powered vehicle is satisfied.

A control device and a transmission system are provided that allow for comfortable traveling with a human-powered vehicle. The control device includes an electronic controller configured to control a transmission to shift a transmission ratio of a human-powered vehicle in accordance with a first shifting condition set based on a first reference value. The electronic controller is configured to shift the transmission ratio of the human-powered vehicle regardless of the first shifting condition upon determining a second shifting condition set based on travel information related to traveling of the human-powered vehicle is satisfied.

An example power delivery device includes a drive shaft to connect with a load, a first motor connected with the drive shaft through a first reducer, and at least one second motor connected with the drive shaft through a second reducer, wherein a first final driven gear of the first reducer is directly connected with the drive shaft, and a second final driven gear of the second reducer is connected with the drive shaft through a one-direction connector.

An example power delivery device includes a drive shaft to connect with a load, a first motor connected with the drive shaft through a first reducer, and at least one second motor connected with the drive shaft through a second reducer, wherein a first final driven gear of the first reducer is directly connected with the drive shaft, and a second final driven gear of the second reducer is connected with the drive shaft through a one-direction connector.

An apparatus for controlling shifting of a vehicle and a method therefor are provided, where the apparatus includes a storage storing a power map in which a demand power corresponding to a vehicle speed and an accelerator position sensor (APS) value is recorded and storing an energy consumption map of a power source for each gear stage. The apparatus includes a controller that detects a current demand power based on the power map, generates a power graph representing the detected demand power as the number of revolution and a torque of the power source for each gear stage, and matches the generated power graph with the energy consumption map of the power source to control a shift to a gear stage which consumes minimum energy.