摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A control system for an automatic transmission for a vehicle with an electric vehicle speed detector, the automatic transmission including a torque converter with a semi-direct coupling mechanism hydraulically controllable of the degree of coupling.The control system comprises a signal processing circuit for processing an electrical vehicle speed signal to provide an electric control signal, and an electro-magnetic valve mechanism for selectively supplying a multi-staged hydraulic control pressure to the semi-direct coupling mechanism in accordance with the electric control signal.Automatic transmissions of the above type are applied to a vehicle with an electric vehicle speed detector, without any major change of existing production system and at an inexpensive cost.
摘要:
A control apparatus for a torque convertor clutch in a transmission including a circuit for engaging the clutch to mechanically interconnect a pump to a turbine of the torque convertor and a mechanism for disabling the circuit when the engine output increases above a predetermined set output value thereby releasing the clutch from engagement. A release preventing mechanism operatively associated with the release mechanism is provided to prevent operation of the release mechanism when the vehicle speed increases above a predetermined set speed value even though the engine output increases above the predetermined set output value.
摘要:
An electrostatic copying apparatus including means for developing the latent image on the photosensitive member with toner particles which are supplied from a container having a slide plate that reciprocates along the bottom of one wall of the toner container. A detecting device is connected to a feed control system and a warning device to control tones dispensing and warm of imperfect feeding.
摘要:
A power steering system for vehicles includes a four-way valve slidable in response to applied steering torque for selectively connecting a pair of hydraulic oil chambers of a servo cylinder to a hydraulic pressure source and an oil reservoir. A pair of hydraulic rection chambers are disposed one on each side of the four-way valve and each contain a pair of plungers and a spring interposed therebetween. The plungers are held by and between a pair of diametrical pins supported on the valve and spaced axially from each other. When the reaction chambers are pressurized by an increased speed of the vehicle or a change in resistance from the road surface, the plungers are urged against the pins on the valve to prevent the latter from being slid axially, thereby allowing the driver of the vehicle to feel a suitable resistance to turning of the steering wheel without being assisted by auxiliary power from the servo cylinder.
摘要:
A power converter includes: a plurality of heat generators, at least some of which are arranged within a wind tunnel portion; and a housing for enclosing the wind tunnel portion through which a cooling air flows. The wind tunnel portion includes a first and second duct each having a cooling air inlet and outlet port, a cooling air flow path, and a blower fan. Further, the cooling air flow paths overlap with each other in a parallel arrangement relationship; the cooling air inlet ports of the first duct and the second duct, and the cooling air outlet ports of the first duct and the second duct are arranged adjacent to each other; and the heat generators divisionally arranged within the first duct and the second duct.
摘要:
A stereoscopic imaging apparatus comprising a single photographic optical system; an image sensor, on which subject images that have passed through different first and second areas in a predetermined direction, respectively, are formed after being pupil-split, photoelectrically converting the subject images that have passed through the first and second areas, respectively, to output a first image and a second image; a diaphragm restricting a light flux incident on the image sensor; a subject information acquiring device acquiring distance information of a subject within a photographic angle of view or a device acquiring an amount of parallax of the subject; and a diaphragm control device controlling an F-number of the diaphragm so that a parallax between the first image and the second image is in a predetermined range based on the acquired distance information of the subject or the acquired amount of parallax of the subject.
摘要:
An electronic mirror includes a first display section, a second display sections and a half mirror disposed between the display sections. The first display section displays a surrounding image captured by an imaging device in a display region. The second display section displays a frame image that has a shape taken along an outer periphery of the display region. A distance between the first display section and a point of the half mirror is greater than a distance between the second display section and the point the half mirror so that the frame image is offset relative to the outer periphery of the surrounding image when viewed in the half mirror.