Abstract: In a two-way solenoid vale, a small diameter portion of a nozzle portion is fitted in a small diameter portion receiving part communicating with an output pressure oil passage and a large diameter portion is fitted in a large diameter portion receiving part communicating with a supply pressure oil passage. An opening of a through-hole formed in the nozzle portion faces the output pressure oil passage by way of the small diameter portion receiving part, and an inner end of the through-hole is opened and closed by a plunger and communicates with a drain port. An orifice port communicating with the through-hole is opened to the large diameter portion receiving part and communicates with the supply pressure oil passage. Since the orifice port is disposed in the solenoid valve, a separate plate for an orifice is not required, oil passage is simplified and the solenoid valve can be installed in an optional position.

Abstract: A transmission mechanism of continuously variable transmission in a vehicle comprises a primary pulley and a secondary pulley provided with a first cylinder chamber and a second cylinder chamber, with groove widths being changed by supply of hydraulic pressure, and a belt provided between the pulleys. A hydraulic pressure to the first cylinder chamber is controlled by CVT control unit through a shift control valve according to a driving state of the vehicle, and the second cylinder chamber is continuously supplied with a line pressure. CVT control unit includes an internal memory to retain a heavy-current system fail flag according to the failure information inputted from a motor control unit.

Abstract: A CVT has a torque convener (T/C) speed ratio calculation section that determines the speed ratio from the engine speed and the primary pulley speed. The calculation section then calculates the torque ratio from the speed ratio. An input torque estimation section then estimates the input torque input into CVT from the torque ratio and the determined engine output torque. The T/C speed ratio calculation section, having a correction amount calculation section, reduces the speed ratio when the accelerator pedal is depressed to less than Np/Ne. Because the disparity with real value of the speed ratio occurring in the dead time of the respective revolution sensors can be decreased and the input torque properly estimated, slippage between the V belt and the variable pulley is prevented.

Abstract: When a transmission selector lever is operated from P or N range to D range, an input clutch to be engaged at the fifth gear position is temporally engaged to reduce shift shock when the engaging element for the first gear position is engaged. An oil pressure command value for actuating the input clutch is increased with a constant inclination from a start point oil pressure value, and the start point oil pressure value is lowered when the engine speed is low or when an oil temperature is high. Even if a timing of completion of filling of working fluid to the input clutch is fluctuated, the difference between the actual oil pressure and the oil pressure command value is suppressed to a small level and the occurrence of shock due to surge at the time of the filling completion is prevented.

Abstract: A transmission apparatus (3) outputs drive power of a motor, from a speed changing mechanism (5, 7), via a sub-shaft (25), a power distribution apparatus (4) transmits rotation of an input end member (67) linked to the sub-shaft (25), via output shafts (83, 85), to the front-wheel end and the rear-wheel end, and the sub-shaft (25) and the power distribution apparatus (4) are disposed in an axially overlapping relationship.

Abstract: A standby phase target time is determined with reference to a table according to a read engine load and vehicle speed. A standby phase real time is then measured, and a learning correction value is calculated and stored. In a next shifting operation, a value that is found by adding the learning correction value to a hydraulic pressure command value in the previous shifting operation is used as a new hydraulic pressure command value. This learning correction is performed in small regions where the vehicle speed increases with the throttle opening being substantially constant. This accurately compensates a change in characteristics of a hydraulic system without being affected by a rapid change in torque or the like.

Abstract: Disclosed herein is a game system equipped with a single referee machine, and a single parent machine and a single flag machine provided in each team. The referee machine collects needed information from all the parent machines and also transmits necessary game information to the parent machine of each team. Also, the parent machine generates information to command movement of a player of the self-team by employing both information acquired from the flag machine of the self-team and the information transmitted from the referee machine and then transmits the generated information to the player, and also transmits the information acquired from the flag machine of the self-team, to the referee machine. The flag machine specifies spot coordinate information from the movement of the player and also transmits the spot coordinate information to the parent machine of the self-team.

Abstract: In a process wherein a before-shifting gear ratio Gx changes to a gear ratio of the target gear position, an actual shift time is measured by regarding as a shift starting point an earlier one between a time point when the present gear ratio G has repeated decreasing by a value equal to or larger than a predetermined unit gear ratio &Dgr;G a predetermined number of times N and a time point when the present gear ratio reaches a first gear ratio G1 that is set to a value smaller than the gear ratio Gx by a predetermined value. If the gear ratio changes rapidly, the start of shifting can be detected at a time tsl when the present gear ratio G reaches the gear ratio G1, and if the gear ratio changes slowly, the start of shifting can be detected at a time ts4 when the gear ratio has repeated decreasing by a value equal to or larger than a predetermined unit gear ratio a predetermined number of times N.

Abstract: A parallel hybrid vehicle can achieve regeneration efficiency in a regenerating operation by employing an electromagnetic two-way clutch which is superior in engaging and disengaging, can shorten a length in axial direction and can provide great freedom in layout. The parallel hybrid vehicle includes an engine, a motor generator having both functions of a generator and a motor, a transmission, a torque combining mechanism combining an output torque of the engine and an output torque of the motor generator by a planetary gear mechanism for outputting torque, control means for controlling output torque of the motor generator and rotating condition, and an electromagnetic two-way clutch mechanism selectively controlling engaging and disengaging between respective elements of the planetary gear mechanism.

Abstract: Drive system torsional vibration resonance while an engine is idling is prevented. An input clutch pack is connected to a rotating drive plate connected to the engine. The input clutch pack is formed from a drive side comprising an input drum, metal plates, and a retaining plate and from a driven side comprising an input clutch hub and facing plates. When the input clutch pack is disengaged, the inertial mass on the engine side with the engine serving as the vibration source, the coil spring, and the inertial mass on the drive side form a single-degree-of-freedom drive system torsional vibration model. By increasing the thickness in the axial direction of the metal plates, the drive side inertial mass is made to be 50% to 100% of the engine side inertial mass. As a result, drive system torsional vibration resonance during idling is prevented while the weight increase is kept to a minimum.

Abstract: In a shift control device for an automatic transmission capable of switching from a normal automatic shift control to a drive-downshift forcible termination control when a time rate of change in transmission input speed is reduced to below a threshold value owing to a drop in transmission input torque during drive downshift from a higher gear position to a lower gear position with an accelerator pedal depressed, a drive-downshift forcible termination control section is provided. The drive-downshift forcible termination section executes the drive-downshift forcible termination control only when the time rate of change in transmission input speed is reduced to below a first predetermined threshold value and a value equivalent to the transmission input torque is reduced to below a second predetermined threshold value, to forcibly terminate the drive downshift.

Abstract: A shift control system for a continuously variable transmission has a target gear ratio corresponding value calculating device for calculating a target gear ratio corresponding value of the continuously variable transmission according to at least a throttle opening, a shift control device for controlling a gear ratio of the continuously variable transmission so that the target gear ratio corresponding value can be obtained. It further has a reactive force applying device disposed on an accelerator pedal and applying a reactive force, which increases according to an increase of the accelerator pedal opening, to a pedal depression force of a driver in a large accelerator pedal opening range.

Abstract: A CVT has primary and secondary pulleys, and a control unit for controlling the transmission ratio by controlling the line pressure applied to the first and secondary pulleys. The control unit calculates a standard step position of a step motor corresponding to the target transmission ratio and provides a command signal representative of the difference between the standard step position and the current position of the step motor. A shift control valve actuated by the step motor controls the pressure to be applied to the primary pulley. The control unit compares the actual transmission ratio with the target transmission ratio, and if the shift is not completed, the control unit commands an additional step number. Unless the shift to the HI side is accomplished when the additional step number reaches the threshold value, the line pressure is increased to achieve the shift.

Abstract: Disclosed herein is a game system having a detection unit for detecting a position of a spot moved from a start spot, a measurement unit for measuring time, and a decision unit for deciding whether or not spots measured by the detection unit have enclosed an area within a set time measured from the start spot by the measurement unit. The game system further has a computation unit for computing a size of a distance between the measured spots, or a size of the area enclosed with the measured spots, when the decision unit decides that there has been enclosure. The victory or defeat of a game player is determined by the size of the length or the size of the area, computed by the computation unit.

Abstract: An automatic transmission controller carries out (a) changing a control for engaging the engaging-side frictional element between in a first condition in which a speed of progression in the shift is managed mainly in accordance with a volume of the hydraulic fluid to be supplied to the engaging-side frictional element itself and in a second condition in which the shift progresses regardless of the volume of hydraulic fluid to be applied to the engaging-side frictional element itself; and (b) accomplishing a volume control for the engaging-side frictional element from a timing immediately after a decision of the shift under a command hydraulic pressure of the hydraulic fluid to be supplied to the engaging-side frictional element in the second condition, the command hydraulic pressure having a lower limit value for securing that a piston stroke of the engaging-side frictional element completes within a predetermined time.

Abstract: An automatic transmission includes a low reverse brake and a reverse clutch that are engaged at different timings to determine a selected gear position, the reverse clutch being engaged immediately before the low reverse brake to be engaged last. It is determined whether or not a piston for actuating the reverse clutch has completed its stroke up to the position where it can start actual engagement. Before determination that the piston of the reverse clutch has completed its stroke up to the position where it can start actual engagement, it is prevented to determine whether or not a piston for actuating the low reverse brake has completed its stroke up to the position where it can start actual engagement.

Abstract: In an automatic transmission performing change-over of a first engaging element and a second engaging element between two gear positions, for example between the fourth gear and the fifth gear, an oil pressure command value A to one of these two engaging elements is retained as a current value “a” and an oil pressure command value B to the other of these two engaging elements is retained as a current value “b” and at the same time the calculation of a calculation value of a downshift form the fifth gear is started when a target gear position changes to the fourth gear or lower during upshift between the two gear positions. When downshift calculation values Ad, Bd reach the retained values “a”, “b”, the oil pressure command values A, B are switched to the downshift calculation values.

Abstract: A unit housing of a transmission unit for a hybrid vehicle is constituted by a first housing (42), a second housing (42), and a third housing (49). The first housing is provided with a first partitioning wall (46) and a third partitioning wall (70). The second housing is provided with a second partitioning wall (45) and a fourth partitioning wall (71). A first seal flange surface (72) formed on an end surface of the third partitioning wall (70) is on the same plane as an end surface of the first housing. A second seal flange surface formed on the end surface of the fourth partitioning wall is on the same plane as an end surface of the second housing. The first housing (42) and the second housing (41) are joined together by the first and second seal flange surfaces. A seal characteristic of each dry chamber against wet chambers can be assured in the unit housing with a wide space assured.

Abstract: A shift control system for an automatic transmission which has a gear ratio control means for controlling gear ratio of the automatic transmission comprises a lower limit setting device provided in said gear ratio control means and setting a lower limit for inhibiting a gear ratio from changing to a gear ratio of an upshift side; and a lower limit variable control means in which a lower limit of said gear ratio can be changed to a downshift side or to an upshift side by an operation of a driver.

Abstract: In an automatic transmission, transient control of the working oil pressures for friction elements whose state is to be switched is normally carried out in accordance with a degree of shift development determined based on at least a vehicle speed. When the vehicle speed is too low to provide determination of the degree of shift development, transient control of the working oil pressures for the friction elements is carried out in accordance with elapsed time from shift instead of normal transient control.