Aisin Seiki Kabushiki Kaisha

Minoru Ikeda

Shinichi Ito

Kiyoharu Takagi

Hiroaki Maeda

Satomi Suzuki

Naoya Tanikawa

Shinichiro Iwasaki

Munenori Ota

A clutch control system of a clutch apparatus for a vehicle, includes a regulator valve switchable between a first mode in which a fluid pressure of a hydraulic fluid to a pressurized chamber is regulated to a first predetermined fluid pressure and a second mode in which the fluid pressure to a canceller chamber is regulated to a second predetermined fluid pressure, the regulator valve discharging a portion of the hydraulic fluid as a drain lubricant to the clutch portion, a switching valve switchable between a supply mode in which the hydraulic fluid is supplied to the pressurized chamber and a discharge mode in which the pressurized chamber is connected to a reservoir, and a control valve controlling the regulator valve to be switched between the first mode and the second mode and controlling the switching valve to be switched between the supply mode and the discharge mode.

Clutch control system of clutch apparatus for hybrid vehicle

A drive system for a vehicle includes an engine, a transmission, a clutch mechanism including first and second clutch portions, the clutch mechanism being switchable between connected and disconnected states, and a clutch operation mechanism switching the clutch mechanism between the connected and disconnected states, the clutch operation mechanism including a clutch drum forming a drum chamber, a piston dividing the drum chamber into a spring chamber and a pressurizing chamber, a control valve, a biasing member arranged in the spring chamber and exerting a biasing force in a direction in which the first and second clutch portions are engaged with each other, and a bore formed in the clutch drum, the bore discharging oil of the spring chamber to an outer side of the spring chamber in a state where a counteracting force against a centrifugal force acting in the pressurizing chamber is generated in the spring chamber.

Drive system for vehicle

A power train device is provided with an electric motor including a cylindrical stator wound with electric oils and a cylindrical rotor which is disposed radially inwardly of the stator and rotated by energization of the electric coils. A reduction gear mechanism is provided for reducing the number of rotations of the rotor, and a differential gear mechanism is provided for supplying rotation power from the output of the reduction gear mechanism to a pair of drive shafts connected to each wheel and for absorbing a differential between the wheels. A cover covers the electric motor, the reduction gear mechanism and the differential gear mechanism, and the reduction gear mechanism is mounted radially inwardly of the cylindrical rotor.

Power train device

A hydraulic accumulator for vehicle transmission includes a valve body incorporated into the transmission casing, a piston disposed in a space provided in the valve body and dividing the space into first and second pressure chambers and a cylindrical sleeve member for closing the space. The sleeve member includes a cylindrical portion formed integral with a cover portion for slidable engagement with the piston. The thickness of the cylindrical portion is variable and permits the changing of the effective area difference between the opposite sides of the piston so that desired pressure characteristics can be obtained.

Growing community of inventors

Nagoya, Japan

Minoru Ikeda