Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Nobuo Kijima

Toshiaki Tateno

Shigeki Fukushima

Yukio Hasegawa

Tomoyuki Iwamoto

Tomoytuki Iwamoto

An automatic transmission apparatus of the invention includes a friction clutch connected to the output shaft of an engine, a clutch actuator for driving the friction clutch, a parallel shaft type gear transmission whose input shaft is connected to the friction clutch, a wheel brake device, and a start control means, which operates the friction clutch to a target rack stroke and adjusts rotation of the engine to a target engine rotational speed when an accelerator pedal depression amount is below a first preset value, and operates the wheel brake device until the engine rotational speed reaches its peak value when the accelerator pedal depression amount is between the first preset value and a second preset value smaller than the first preset value. With this start control means, a vehicle can be smoothly started.

Automatic transmission apparatus for vehicle

Control mechanism for automatic transmissions

An operating device in which a speed change operation performed by a manual operating member is boosted by electric energy or hydraulic pressure or the like and transmitted to the transmission, wherein if an operator moves the manual operating member to perform the speed-change operation, a high reaction force is applied against the movement of the manual operating member by an interference device until the speed change condition of the transmission has reached the one desired and in turn when the speed-change condition of the transmission reaches the one desired, operation of the interference means is controlled by a control means, resulting in applying a low or no reaction force in respect to the movement of said manual operating member, thereby the operator can be apprised of the completion of the speed-change operation of the transmission through a rapid decrease in resistance to operation of the manual operating member, and upon completion of the speed-change operation, the operator may direct his efforts to other operating functions without being concerned with the speed change operation. Since a tactual sense of the operator is applied to detect a completion of the speed-change operation of the transmission, his sense of sight and hearing can be applied to assuring safety in running operation of the vehicle or the like and thereby a quite safe operation of the vehicle can be assured.

Operating device for transmission

A positioning device capable of positioning a rod with a first piston fixed thereto into one of four positions selectively by means of a second piston disposed within a chamber A formed in a large-diameter cylinder portion and first, third and fourth pistons disposed within chambers B and C formed in a small-diameter cylinder portion. It is convenient to apply this positioning device to a select mechanism of a transmission or the like having four select positions.

Growing community of inventors

Tokyo, Japan

Nobuo Kijima