Aisan Kogyo Kabushiki Kaisha

Aisin Ai Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Aisin Al Co., Ltd.

Yoshiki Ito

Takeshige Miyazaki

Shiro Ogami

Atsushi Takeuchi

Kazutaka Kobayashi

Hiroki Hatori

Hiroki Inoue

Kiyoshi Nagami

Hiroshi Toyoda

Katsuhiro Asami

Mitsuhiro Tabata

Sunao Kitamura

Hiroyasu Kariya

Shingo Nakanishi

Yukio Ueda

Shinya Yamaguchi

Toshihide Kokubu

Kiyoshi Tsukiji

The throttle deviceincludes a throttle bodyhaving an intake passage, a throttle valvearranged to rotate within the intake passagefor opening and closing the intake passage, and a throttle shaftrotatably arranged with respect to the throttle bodywhich is integrally formed with and concomitantly rotatable with the throttle valve. A throttle gearis fixed to the throttle shaftand rotated by the actuator. A springbiases the throttle gearin a predetermined initial opening angle. A full-close stopperis provided in the throttle body. The full-close stopperrestricts the throttle gear, which rotates in the opening and closing directions, from rotating past the fully closed angle position. A stopper memberis formed at the spring. An initial-open stopperis provided in the throttle bodyto restrict the stopper memberfrom rotating past the initial opening angle. A fully closed opening angle restricting memberis fixed to the throttle shaftin a position where the fully closed opening angle restricting membercontacts the full-close stopper

Throttle device and method for manufacturing the same

A power transmission control device, which is applied to a hybrid-vehicle provided with an internal combustion engine (E/G) and a motor (M/G) as power sources, includes a manual transmission and a friction clutch. When the shift position is in 'neutral', the friction clutch is in an engaged state, an accelerator opening is '0', and a battery remaining amount SOC is less than a threshold TH, a charge condition is satisfied. When the charge condition is satisfied, charge of a battery by using an E/G torque is carried out. Specifically, the M/G is driven, by using the E/G torque, as an electrical power generator, and electric energy acquired by electric power generation by the M/G is used to charge the battery. As a result, for the HV-MT vehicle, by using the internal-combustion-engine torque, the battery for supplying the electric motor with the electric energy can be efficiently charged.

Power transmission control device for vehicle

A power transmission control device is used for a hybrid vehicle including an internal combustion engine and a motor (MG) as power sources, and includes a manual transmission and a friction clutch. A torque of the motor (MG torque) is generally adjusted to the smaller one (=MG torque final reference value) of an MG torque reference value determined based on an accelerator opening and an MG torque limit value determined based on a clutch return stroke. Based on satisfaction of a predetermined condition relating to a clutch pedal operation performed by a driver, the MG torque is intentionally adjusted to a value shifted from the MG torque final reference value in place of the MG torque final reference value. As a result, a driving force which is more appropriate or better meets a driver's intention can be obtained.

A transmission includes a controller being provided with a change-speed stage anticipator. The controller adopts a time, which one of the transmission's gear-mechanism selectors requires in shifting a current change-speed stage to another change-speed stage, as a pre-shift time for selecting the latter change-speed stage. The change-speed stage anticipator operates the one of the gear-mechanism selectors while adopting a temporary change-speed stage as a subsequent change-speed stage when the temporary change-speed stage, which is estimated from a state of vehicle after the pre-shift time, the state of vehicle being relevant to each element of an anticipated change-speed stage group that is made up of one or more of the change-speed stages that can be selected by the one of the gear-mechanism selectors being set on one of the transmission's input shafts that is disconnected from a power source, coincides with an anticipated change-speed stage that corresponds to the pre-shift time.

Transmission and method of shift control for transmission

A transmission includes a controller that has a rapid-deceleration judge and a rapid-deceleration processor. The rapid-deceleration judge judges whether a vehicle is decelerating rapidly or not. The rapid-deceleration processor includes a torque-fluctuation inhibitor, and an after-rapid-deceleration change-speed stage anticipator. The torque-fluctuation inhibitor shuts off power transmission from a power source, or holds power transmission by way of a current change-speed stage or lower, when the vehicle is decelerating rapidly. The after-rapid-deceleration change-speed stage anticipator anticipates a subsequent change-speed stage being adapted for restarting or reaccelerating the vehicle that has come out of rapid deceleration.

A throttle device for an internal combustion engine includes a throttle body, a transmission mechanism and an opener. A relief spring is interleaved between the throttle body and the opener. A back spring is interleaved between a final stage gear of the transmission mechanism and the opener. Each of the relief spring and the back spring is formed of a torsion coil spring. One or each of the terminal ends of the relief spring or the back spring is bent in a radial direction with respect to an axis of a coil portion. The opener or the final stage gear has at least one spring support portion with an engaging recess. The engaging recess is configured to permit insertion of the radially bent terminal end and to permit movement of the radially bent terminal end relative to the engaging recess in a circumferential direction with respect to an axis of the coil portion. The engaging recess is engageable with the radially bent terminal end as the radially bent terminal end moves in the circumferential direction relative to the engaging recess.

Throttle devices for internal combustion engines

An actuator includes a coil and an IC attached to a core. The coil produces a magnetic field and the core provides a path for the magnetic field. A rotor is rotatably mounted within the core, so that the rotor rotates in response to the magnetic field produced by the coil. The IC is electrically connected to the coil. The distance between the IC and the coil is determined based on a permissible temperature of the IC, so that the IC is not heated substantially in excess of the permissible temperature.

Actuators with integrated circuits

Instrument face

Combination lamp for an automobile

A control device for an automatic transmission for automatically shifting a synchromesh type gear transmission, having a controller in which shifting to another gear is performed after temporary synchronization is effected by use of a synchronizer of an intermediate gear between one gear and the another gear, when shifting from the one gear to the another gear while skipping at least a next gear of the one gear is effected.

Control device and method for automatic transmission for automatically shifting synchromesh type gear transmission

A throttle valve control device provided with a throttle valve 3 formed in an elliptic shape such that a major axis is a center line connecting mounting holes and for fixing the valve to a throttle shaft . A clearance A is provided between an edge of the elliptic valve in a minor axis and an inner wall of a throttle bore configuring an intake passage, while the minimum open area needed for idle engine operation is provided. Even if deposits are accumulated in the bore in the vicinity of the throttle shaft at the idle operation, the throttle valve further rotated in a reverse rotating direction at throttle valve non-control time can scrape off the deposits at a smaller rotational torque as compared with in the vicinity of the edge of the valve

Throttle valve control device

A vehicle transmission includes a speed change mechanism capable of changing the speed-change ratio in a plurality of shifts, an operating mechanism having a plurality of operating routes for changing the speed-change ratio of the speed change mechanism, an actuator mechanism for driving the operating mechanism, a one-shift handling portion operated to one-shift the speed change mechanism, a one-shift handling portion operated to one-shift the speed change mechanism, a skip-shift handle portion operated to skip-shift the speed change mechanism, and an ECU for controlling the actuator mechanism based on the operation of the one-shift handle portion or the skip-shift handle portion.

Vehicle transmission

A throttle valve control apparatus includes a throttle valve, a DC torque motor for driving the throttle valve, the DC torque motor including a stator with coil wound therearound, and a needle including permanent magnets, the needle being rocked within a predetermined working angle range, wherein a magnetic path is formed within the stator, and a magnetic flux quantity is generated within the stator when current flows in the permanent magnets and the coil, wherein a magnetic flux is not saturated while the working angle of the needle is in a repulsion region where the needle repulses the stator and the magnetic flux is saturated while the working angle of the needle is in an attraction region where the needle is attracted to the stator, a throttle opening sensor for outputting information regarding an opening of the throttle valve, and a controller which controls the dc torque motor when receiving signals from the throttle opening sensor.

Growing community of inventors

Aichi-ken, Japan

Yoshiki Ito