摘要:
Even when a vehicle engine is started after replacement of a throttle actuator or the like without learning a magnetic pole position of a rotor of a brushless motor for driving a throttle valve, engine power can be controlled in a proper manner so that the vehicle can be driven to travel in a safety mode. An air intake amount control apparatus for an engine is equipped with a throttle valve mounted on a rotation shaft in an air intake passage of the engine, a motor having a rotor coupled to the rotation shaft, and a throttle sensor for sensing an opening degree of the throttle valve, so that the throttle valve is controlled by the motor based upon various sorts of engine operating information. The apparatus further includes a rotor magnetic pole position learning unit for driving the motor in a stepwise manner so as to learn a magnetic pole position of the rotor detected by the throttle sensor, a rotor magnetic pole position learned value storing unit for storing therein the rotor magnetic pole position learned value, and a magnetic pole position identifying unit for driving the motor to a predetermined stepwise position so as to identify the magnetic pole position learned value stored in the rotor magnetic pole position learned value storing unit with the magnetic pole position of the motor detected by the throttle sensor.
摘要:
In a semiconductor chip mounting apparatus including a mounting section for mounting a semiconductor chip on a substrate, a loader which supplies the substrate to the mounting section, an unloader which contains the substrate having the semiconductor chip mounted thereon into a magazine, the substrate having the semiconductor chip is heated by a heater to be kept at high temperature after the mounting process and until a sealing process for sealing the substrate having the mounted semiconductor chip with a resin.
摘要:
In a vehicle drive power control apparatus of the present invention, an output of a first throttle valve opening detection means 61 and an output of a first accelerator opening detector 51 are inputted into a first control unit 2. Further, an output of a second throttle valve opening detection means 62 and an output of a second accelerator opening detector 52 are inputted into a second control unit 3. In addition, the vehicle drive power control apparatus comprises first and second throttle opening detection failure decision units deciding a failure of the first and second throttle opening detection means 34, 35, and communication failure decision means 33 deciding a failure of communication means between the first and second control units 2, 3. Furthermore, the vehicle drive power control apparatus switches each failure decision method of the first and second throttle opening detection failure decision means 34, 35 according to the decision results of respective failure decision means.
摘要:
To improve the controllability of an energization current for a motor, when electricity is applied to each stator coil for a predetermined energization time in accordance with a plurality of energization patterns to drive a brushless motor stepwise, an energization time for a first step is made long to carry out learning of the magnetic pole position of the rotor. A current to be applied to each stator coil is controlled based on the output of a throttle opening sensor and a learned value of the magnetic pole position of the rotor obtained by the learning of the magnetic pole position of the rotor.
摘要:
An actuator controller capable of preventing various inconveniences that stem when the operation positions of the actuator have not been learned. The actuator controller comprises a sensor 6 for detecting the operation position of an actuator 1, an actuator control means 17 for so executing the feedback control operation that the operation position comes to a target position, a means 18 for driving the actuator based upon a control quantity from the actuator control means, a battery 9 for feeding an electric power to the actuator control means, a means 11 for determining the attached/detached state of the battery, and a means 12 for storing a relationship between the operation position and the voltage signal as a learned value, wherein in said learned value storage means has been written, in advance at the time of shipping, a predetermined initial value outside a range of said learned values, and, when it is determined that the battery has been detached, said actuator control means determines said learned value storage means to be in an unlearned state when said data value exhibits said predetermined initial value.
摘要:
A power control apparatus for controlling power supplied to an electric motor rotating a rotor employed in a centrifuge is provided. The power control apparatus includes first and second inverters and a smoothing capacitor disposed between the first and second inverters. In a motor power mode, the first inverter charges the smoothing capacitor with power supplied by an AC power supply, while the second inverter charges, in a motor braking mode, the smoothing capacitor with power regenerated by the motor during a braking operation for returning the regenerated power back to the AC power supply through the first inverter. An reactor is arranged between the AC power supply and the first inverter for reducing harmonic components contained in the current supplied from or back to the AC power supply.
摘要:
A headlamp for motor vehicles in which an inner lens formed with distribution beam control steps can easily be fastened to the front opening of the reflector. Holes, which receive respective protrusions protruding from the lower edge of the inner lens, are formed in the lower surface of the reflector, and cutout portions provided on the front end of the upper surface of the reflector are located further rearward than the protrusions, whereby the inner lens maintains engagement with the front opening of the reflector lens contact faces by its own weight. The upper edge of the inner lens can easily be fastened to the front end of the upper surface.
摘要:
A microprogram control system has first and second microprogram control units and first and second arithmetic circuits corresponding to the first and second microprogram control units, respectively. The first unit has a first control memory holding microinstructions for controlling the first arithmetic circuit and a first condition register for storing status information given as a branch condition from the first arithmetic circuit. The second unit is made up of corresponding structure. In response to a start microinstruction read out from the first control memory, the first unit stores a start command and a start address in the start microinstruction into a command register and a start address register therein, respectively, and sends the start command, the start address and the status information to the second control unit. In response to the start command, the second unit stores the status information given from the first condition register into its condition register and reads out a microinstruction from its control memory based on the start address given from the start address register.
摘要:
A corrugated cardboard producing machine has a preheater for heating a corrugated cardboard sheet of original paper or single face type corrugatd cardboard sheet in each of various processing stages for producing a corrugated cardboard by bonding a liner paper onto a corrugated central core paper. The preheater is provided with a lap amount adjusting tool whose insertion amount between a circumference of a roll of the preheater and the original paper or the single face type corrugated cardboard is adjustable. The lap amount adjusting tool is movable along the circumference of the roll of the preheater.
摘要:
The invention provides a vaccine comprising an effective amount of an isolated recombinant influenza virus comprising a mutant M gene segment that is mutated so that upon viral replication the mutant M gene expresses a functional M1 protein and a mutant M2 protein with a deletion of the cytoplasmic tail and either lacking a transmembrane domain or having a mutated transmembrane domain.