Honda Giken Kogyo Kabushiki Kaisha

Honda Giken Kogyo K.k.

Nagase Co., Ltd.

Other

Yoichi Sato

Masao Nishikawa

Takashi Aoki

Yukihiro Fukuda

Toshihiko Aoyama

Yoshihiko Toshimitsu

Tokuro Takaoka

Yutaka Akiyama

Yoshimi Sakurai

Shigeji Nakano

Kanji Otsuka

Hiroshi Yoshizawa

Junji Urano

Minoru Uwai

Toshiyuki Kouchi

Hideo Furukawa

Shinzo Sakai

Fumiaki Fujii

Noboru Kondo

Shigeru Yamamoto

Masamitsu Hirano

Kaoru Kobayashi

Tsuneo Ito

Yuko Tanba

Takeshi Koyama

Masato Nishizawa

Tatsuya Nagasawa

Tatsuya Yamakita

Masahiro Yoshida

A semiconductor device that writes, into respective memory spaces of a plurality of separate memories constituting a search memory mat, an entry address corresponding to key data to be written. In this semiconductor device, pieces of divided data are assigned respectively to the separate memories, and, by employing each divided data as an address, entry addresses corresponding to the divided data are written sequentially into memory spaces specified by memory addresses of the separate memories (first writing process). In this first writing process, if another entry address is already written in an accessed memory space, no entry address is written into that memory space. If an entry address corresponding to a single one of the plurality of pieces of divided data is successfully written into a memory space, the first writing process is ended. Second write processing to a verification memory may also be performed. Key data may be written to a backup memory when a whole collision occurs. The semiconductor device may also include multiple encoding circuits using different algorithms, and a narrowing unit to narrow down entry address candidates.

Writing method and semiconductor device including a search memory mat with write processing terminated when one piece of divided key data is successfully written

The semiconductor device of the present invention includes a search memory mat having a configuration in which a location with which an entry address is registered is allocated in a y-axis direction, and key data is allocated in an x-axis direction and a control circuit connected to the search memory mat. In the search memory mat, a plurality of separate memories is formed such that a region to which the key data is allocated is separated into a plurality of regions along the y-axis direction. The control circuit includes an input unit to which the key data is input, a division unit which divides the key data input to the input unit into a plurality of pieces of key data, and a writing unit which allocates each piece of divided key data by the division unit into the separate memory using the divided key data as an address.

Semiconductor device and method of writing/reading entry address into/from semiconductor device

A bandwidth bottleneck occurs because a crossbar switch is used to cope with an increase in scale. A memory/logic conjugate system according to the present invention, a plurality of cluster memory chips each including a plurality of cluster memoriesincluding basic cellsarranged in a cluster, the basic cellincluding a memory circuit, and a controller chip that controls the plurality of cluster memories are three-dimensionally stacked, the plurality of cluster memorieslocated along the stacking direction of the plurality of cluster memory chips and the controller chip are electrically coupled to the controller chip via a multibusincluding a through-via, an arbitrary one of the basic cellsis directly accessed through the multibusfrom the controller chip so that truth value data is written therein, and whereby the arbitrary basic cellis switched to a logic circuit as conjugate.

Memory/logic conjugate system

An apparatus for controlling a power transmission device, having a lockup shift valve that changes the operating state and non-operating state of the lockup mechanism, and a regulator valve that is capable of changing the pressure (line pressure) of working oil used to operate a speed changer CVT between a low pressure and a high pressure, wherein changeover between a mode, where the lockup mechanism is operated and the line pressure is set to a low pressure, and a mode, where the lockup mechanism is not operated and the line pressure is set to a high pressure, is carried out by changing the output of ON and OFF signals from the first solenoid valve.

Apparatus for controlling a power transmission device

A first side-pressure, that is supplied to cylinder of the drive pulley or to cylinder of the driven pulley as pressure determining the transmission torque capacity of continuously variable transmission mechanism , is supplied to a frictional engagement element, where it is used as the working hydraulic fluid pressure. The transmission torque capacity of the frictional engagement element is set to be somewhat lower than the transmission torque capacity of the continuously variable transmission mechanism.

Belt-type continuously variable transmission

A control system for a vehicle with an automatic transmission adapted to prohibit the upshifting from a second shift stage to a third shift stage upon generation of a slipping of driven wheels. When an accelerator pedal is depressed to increase the throttle opening degree TH in order to permit the vehicle to be started to travel on an icy surface and the like having a lower road surface friction coefficient, the vehicle speed V detected based on the number of rotations of an output shaft of an automatic transmission is rapidly increased due to the generation of a slipping, whereby the upshifting from the second shift stage to the third shift stage is prohibited. A vehicle speed generated on a usual flat road is previously stored, and a presumed vehicle speed VYS is calculated from such vehicle speed and a time elapsed after the generation of the slipping. When the detected vehicle speed V becomes equal to or less than the presumed vehicle speed VYS, it is determined that the gripping between the driven wheels and a road surface has been restored, and the prohibition of the upshifting is canceled. Thus, it is possible to properly perform the canceling of the prohibition of the upshifting.

Control system for automatic transmission for vehicle

A slip detecting device detects slipping of a selected hydraulically engaged element of an automatic transmission during non-shifting, and a determining device determines a hydraulically engaged element larger in driving-force transmitting capacity than the hydraulically engaged element which is in its engaged state. A transmission control element then brings the hydraulically engaged element having the larger driving force transmitting capacity, into its engaged state, in place of the hydraulically engaged element which was in its engaged state. Thus, the slipping of the hydraulically engaged element during non-shifting is prevented.

Control system for automtic transmission for vehicle

A method for controlling an automatic transmission by carrying out speed changes in a vehicle in accordance with predetermined characteristics, said characteristics including engine load and vehicle speed, and said method comprising the step of carrying out a non-creeping control. The non-creeping control is carried out by stopping a power transmission to, or decreasing a transmitting torque to, an output side of the transmission when braking apparatus is operated under an idling operating condition in which the vehicle is substantially stopped. The non-creeping control is continued once the non-creeping control has been started even if thereafter the braking apparatus ceases to be operating.

Method for controlling vehicular automatic transmissions

An automatic shift transmission for vehicles of the type in which the shifting of speed is automatically effected with a changeover valve having an orifice installed upstream thereof and a pilot type solenoid valve installed downstream thereof. A pressure reducing valve is provided upstream of the orifice. The amount of hydraulic oil consumed through the solenoid valve is possibly reduced.

Automatic shift transmission for vehicles

In an automatic transmission for a vehicle, a lock-up device is provided for a direct coupling clutch. The automatic transmission includes a fluid type torque converter having a hydraulic direct coupling clutch, and an auxiliary transmission having plural stages of gear trains. The lock-up control device has a valve for controlling the supply of oil pressure from a common oil pressure source to the direct coupling clutch, the valve having a body movable between opposite end positions and adapted to take a first switch position at one of the end positions when applied with a single signal pressure and a second switch position at the other end position, after release of the signal pressure, due to resilient force of a spring. The valve allows flow of the actuating oil pressure to the direct coupling clutch when the valve body is at both the first and second switch positions and interrupts the flow during shifting movement of the valve body from the first to second positions or vice versa. Thus, the direct coupling clutch is instantaneously disconnected during gear shifting operation over adjacent three gear ratios with use of the single signal pressure.

Lock-up control device for torque converter in automatic transmission

A control system for an accessory of an automobile includes an engine output detector for detecting the output of the engine of the automobile, a gear transmissioon coupled to the engine and responsive to detection of an idling condition of the automboile for selecting a neutral gear position, an accessory such as an air conditioner compressor drivable by the engine, a clutch disposed between the accessory and the engine for applying and cutting off the output of the engine to the accessory, a speed sensor for detecting the speed of travel of the automobile, a control circuit for comparing an actual running condition of the automobile with a prescribed running condition in which the output of the engine and the speed of the automobile are lower than respective prescribed levels, and for inhibiting operation of the accessory by disconnecting the clutch when the automobile is under the prescribed running condition.

Control system for engine-operated automotive accessories

An automatic transmission includes a mechanical transmission mechanism coupled to a fluid coupling. The mechanical transmission mechanism has several power trains and several friction engagement mechanisms. By selective supply of actuating fluid pressure to selective ones of the friction engagement mechanisms, various speed stages are provided. A control system for this transmission includes a mechanism for producing a signal representative of engine output and an anti creep device for varying the actuating hydraulic fluid pressure for one of the friction engagement mechanisms which is engaged for providing the lowest speed stage, according to the signal representative of engine output, from a low value when engine output is low upward as engine output increases. The anti creep device may include a hydraulic fluid chamber whose volume alters during alteration of amount of applying of anti creep action, and a fluid conduit system for connecting this hydraulic fluid chamber to the outside with a flow resistance which is different in the outwards direction and the inwards direction. Alternatively, the anti creep device may vary the actuating hydraulic fluid pressure for that one of the friction engagement mechanisms, according to the signal representative of engine output, upward from a low value when the signal is low, as the signal increases, substantially in proportion to the signal, up to a certain value of the signal; and may then set, for values of the signal greater than the certain value, the actuating hydraulic fluid pressure substantially equal to a certain maximum value.

Automatic transmission with anti creep device

A creep-inhibiting device for use in an automotive vehicle equipped with a transmission mechanism coupled in series to a fluid coupling and having a frictionally engaging element. Control means interposed between the frictionally engaging element and an operating fluid source controls the power transmission capacity of the frictionally engaging element within a range from substantially zero to a predetermined value in dependence on a signal fluid pressure representative of engine load, to inhibit creeping of the vehicle when the vehicle engine is in a no-load state. The control means has a valve body selectively connecting and disconnecting an input fluid line to and from an output fluid line. A first pressure chamber defined by a first end face of the valve body is supplied with an operating fluid pressure in the output fluid line, while a second pressure chamber defined by a second end face of the valve body is supplied with the signal fluid pressure. A third fluid line having a restriction always connects the input and output fluid lines with each other, and a resilient member urges the valve body in a direction of connecting the input fluid line to the output fluid line. The operating fluid pressure in the output fluid line is allowed to escape through a drain line to a lower pressure zone by an amount corresponding to an amount by which the valve body is biased in a direction of disconnecting the input fluid line from the output fluid line.

Creep-inhibiting device for an automotive vehicle equipped with an

A direct-coupling control system for a fluid gear in an automatic vehicular transmission, having a fluid gear provided with input and output members; a direct-coupling mechanism capable of connecting the input and output members of the fluid gear mechanically and directly by a locking force which is determined on the basis of a function of a difference between a working pressure and an internal pressure in the fluid gear; and a control valves provided between a pressure supply source and the direct-coupling mechanism and adapted to control the working pressure. The direct-coupling control system includes a pressure retainer valve for controlling the internal pressure in the fluid gear so as to reduce the same in accordance with an increase in a vehicle speed or an engine output.

Direct-coupling control system for fluid gear in automatic vehicular

A hydraulic shift transmission for a vehicle including a hydraulic torque converter for transmitting the engine torque to a road wheel driving system. The hydraulic shift transmission comprises a first speed gear train interposed between the hydraulic torque converter and the road wheel driving system, a hydraulic clutch installed in the first speed gear train, a hydraulic control system for supplying a hydraulic pressure through an oil supply line to the clutch, a relief valve mechanism, provided for the supply line, for releasing the hydraulic pressure while the vehicle speed is lower than preset reference value with the engine idling, an oil return port open relative to the supply line and releasing the hydraulic pressure while opened, a piston member for, when slided in either axial direction thereof, closing the return port, a resilient member normally biassing the piston member in the axial direction, and a hydraulic circuit for, at least either when the vehicle speed becomes higher than the preset reference value or the engine is accelerated, gradually urging the piston member in the axial direction.

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Wako, Japan

Yoichi Sato