摘要:
A speaker changeover device has a plurality of audio equipments for outputting ready condition signals when the power source is turned on; a speaker which is used by the audio equipments in common, a changeover control circuit which starts its operation by turning a cycle start switch, cyclically monitors the ready condition signals from the audio equipments simultaneously with the input of clock signals and generates a changeover signal to the audio equipment which first outputs the ready condition signal to stop its operation, and an electromagnetic relay operated by the changeover signal to connect the audio equipment which first outputs the ready condition signal, to the speaker.
摘要:
An apparatus having electric wheels comprises a pair of left and right wheels, rotary electric machines, i.e. motors, for individually driving these wheels, and a control unit for operating the motors. The motors each have a rotation axis offset from that of the wheel, drive the same one wheel of the pair, and are arranged at positions distanced in the radial direction of the axle by the same length, and on the same plane normal to the axial direction of the axle, being apart from each other in the circumferential direction of the axle with a predetermined angle therebetween. In a preferred mode, power is transmitted from the motors to a single wheel through a belt-type transmission mechanism incorporated in the wheel. Responsive and fine driving power control can be performed without sacrificing the cabin space, thereby providing a vehicle having excellent responsiveness, degree of freedom and reliability.
摘要:
An automotive power supply system which has two storage batteries mounted in a vehicle which are charged by the electrical energy produced by an electric generator driven by an engine of the vehicle. The system includes a switching device which works to switch between electric connections of the generator to the batteries as functions of predetermined parameters, thereby ensuring the stability in charging and keeping the batteries within a desired serviceable capacity range.
摘要:
The present invention provides an engine starting method from an idling stop condition wherein a preliminary step pushes a pinion to abut with a ring gear when a vehicle operating condition is in an idling stop condition, a starting step rotates the pinion into mesh with the ring gear by a motor upon receiving an engine start signal and thereafter an engine is started, and a restoring step is carried out after engine startup where the pinion is restored to an original position thereof. Also provided, when the engine is stopped, a pinion is meshed with a ring gear. Upon engine start-up, a pinion actuator disengages the pinion from the ring gear and a cutout portion engages an engaging piece to maintain the pinion disengaged. When the engine stops, a releasing actuator disengages the cutout portion and the engaging piece and the pinion is reset.
摘要:
An Electroluminescent display device is designed not to display residual images due to electric charges stored in electroluminescent pixels or to make them invisible, when the device is turned on again. The stored charges are eliminated at the time a normal display on the panel is turned off at an end of an operation, by scanning pixels at least one time while giving a non-activating data voltage thereto. Alternatively, upon turning on the panel, pixels which were activated in a previous use are all lit at least one time, thereby making the residual images invisible. Thus, the residual images stored in a previous operation are not shown or made invisible when the electroluminescent display device is turned on next time.
摘要:
A thin-film EL display panel which has excellent packageability, high reliability and stable performance characteristics, and which can prevent nonuniformity of brightness and color from occurring and a fabrication method thereof are provided. In the above thin-film EL display panel, two thin-film EL elements 1 and 2 formed by sequentially laminating first electrodes 12 and 22, first insulating layers, luminescent layers, second insulating layers and second electrodes 16 and 26 respectively on glass substrates 11 and 21 are laminated into position and connecting terminal portions 12a, 22a, 16a and 26a for connecting the first electrodes 12 and 22 and second electrodes 16 and 26 are formed on the edge portions of the substrates 11 and 21 of the thin-film EL elements 1 and 2. connecting pad portions 17 and 18 which correspond respectively to the connecting terminal portions 22a and 26a of the thin-film EL element 2 are provided on the edge portions on the substrate of the thin-film EL element 1, the connecting pad portions are connected to the connecting terminal portions of the other thin-film EL element via conductive coupling sections 19 and the connecting pad portions and the connecting terminal portions to which lead wires are connected are provided on the edge portion of one substrate at a position where both substrates will not be laminated.
摘要:
An electric rotating machine includes a multi-phase stator coil that is wound on a stator core in a distributed winding manner. Each of phase windings of the stator coil is formed of an electric wire bundle which includes a plurality of insulation-coated electric wires that are electrically connected to one another. Each of the electric wire bundles forming the phase windings has in-slot portions, which are respectively received in corresponding slots of the stator core, and turn portions that are located outside the slots of the stator core to connect adjacent pairs of the in-slot portions. Each of the electric wire bundles further includes a plurality of insulating layers that are respectively formed at predetermined positions, at which the turn portions of the electric wire bundle overlap those of the other electric wire bundles, so as to surround the electric wires of the electric wire bundle.
摘要:
A motor-generator has a stator including an annular stator core and stator windings wound on the stator core, an annular inner rotor located radially inward of the stator core, and an annular outer rotor located radially outward of the stator core. Each of the inner and outer rotors is made of a soft magnetic material or magnetic steel. The stator core consists of a plurality of stator core segments each being in the form of a tooth. The stator windings are wound on the stator core in a continuous distributed winding manner at a predetermined winding pitch. The outer rotor consists of a plurality of outer rotor segments each of which is magnetically polarized to have opposite polarities on opposite circumferential ends thereof. Each of the outer rotor segments is offset from the inner rotor by a predetermined electrical angle that corresponds to the winding pitch of the stator windings.
摘要:
A motor-generator has a stator including an annular stator core and stator windings wound on the stator core, an annular inner rotor located radially inward of the stator core, and an annular outer rotor located radially outward of the stator core. Each of the inner and outer rotors is made of a soft magnetic material or magnetic steel. The stator core consists of a plurality of stator core segments each being in the form of a tooth. The stator windings are wound on the stator core in a continuous distributed winding manner at a predetermined winding pitch. The outer rotor consists of a plurality of outer rotor segments each of which is magnetically polarized to have opposite polarities on opposite circumferential ends thereof. Each of the outer rotor segments is offset from the inner rotor by a predetermined electrical angle that corresponds to the winding pitch of the stator windings.
摘要:
An engine start-stop control system for an automotive vehicle includes a first step for supplying current to a solenoid of a magnet switch of a starter at 100% duty ratio until a first predetermined time passes, a second step for supplying current to the solenoid at a duty ratio that is less than 100% after the first predetermined period passes until a second predetermined period passes, and a third step for supplying current to the solenoid at 100% duty ratio after the second predetermined period passes until a third predetermined period passes. Therefore, a pinion of the starter reaches a ring gear of the engine in a short time and engages the ring gear with a moderate impacting shock, thereby preventing the pinion and the ring gear from being damaged.