1590results about How to "Smooth start" patented technology

The invention discloses an intelligent parking braking and auxiliary starting control method, which includes steps of firstly, initializing an intelligent parking braking controller and reading control parameters stored in a single-chip microcomputer, secondly, reading a vehicular speed signal V, a brake pedal travelling signal Db, an accelerator pedal travelling signal Da, a transmission gear signal Js, an ignition key door switch signal Key, an enable switch signal Button, a front wheel speed signal wf, a rear wheel speed signal wr and a gradient signal Sa, thirdly, invoking and performing an intelligent parking control procedure, an auxiliary starting control procedure, a parking brake automatic retracting control procedure, a long-term parking control procedure, an emergency braking control procedure or manual reset cutting-off control procedure according to the read signals and fulfilled response conditions, fourthly, converting the target torque of a motor according to the motor target braking force calculated from the control procedures, fifthly, calculating the target rotor current of the motor according to the obtained target torque of the motor, and sixthly, controlling the duty ratio of a motor PWM (pulse width modulation) driving control circuit according to the target rotor current of the motor.

A drive control system for an automotive vehicle includes an engine, an automatic transmission, a torque converter, a start clutch, an oil pump, a hydraulic pressure control unit, an engine control unit, an automatic engine stop/restart control unit and a torque transmission control unit configured to calculate target start clutch engagement time and torque based on an accelerator opening of the vehicle, calculate a target engine torque based on the target clutch engagement torque and cause the hydraulic control unit and the engine control unit to control the engagement state of the start clutch and the output torque of the engine according to the target clutch engagement time and torque and the target engine torque at a restart of the engine.

There is provided a parking assist apparatus capable of allowing an automatic steering control to be started smoothly, without requiring any special operation after confirmation of a parking target location. The parking assist apparatus includes a parking target position setting section for setting a parking target position, a guiding path calculating section for calculating a guiding path to the parking target position, a reporting information outputting section for reporting to the driver upon successful establishment of a guiding path that an automatic steering is now possible, a non-holding state determining section for determining whether there is established a non-holding state of the driver not holding a steering device, and a guiding start determining section configured to allow guiding by the automatic steering to be started, provided the guiding path has been established AND the non-holding state has been realized.

An electric vehicle employs an oil commonly used as a lubricating oil for gears and a coolant for a motor and is propelled by transmitting the rotational torque of the motor to wheels through the gears, the motor being partly immersed in the oil. It is determined whether the motor is in a state prior to being started or not. If it is judged that the motor is in the state prior to being started, coils of the motor are energized alternately with a first current supplied to the motor at an advanced angle for no torque to generate a magnetic flux, and a second current supplied to the motor at another advanced angle for no torque to generate a magnetic flux in a direction opposite to the magnetic flux generated by the first current, thereby heating the oil.

The present invention provides an information-processing apparatus including disclosure-information sender means for transmitting user-disclosure information to an other apparatus, disclosure-information receiver means for receiving other user-disclosure information from the other apparatus, display control means for controlling a process to display information received by the disclosure-information receiver means, connection request means for making a request for a connection to an other apparatus in accordance with a user operation, connection-permission determination means for producing a determination result as to whether or not a connection requested by the connection request means as a connection to an other apparatus has been permitted by the other apparatus on the basis of a response received from the other apparatus, and communication means for transmitting an image and voice of the user to an other apparatus and receiving an image and voice of an other user from the other apparatus in case a determination result produced by the connection-permission determination means indicates that a connection with the other apparatus has been permitted by the other apparatus.

A drive system for a refrigeration compressor such as is used in a natural gas liquefaction plant, allowing the desired compressor speed and maximum turbine efficiency to be maintained throughout varying ambient temperature conditions. A gas turbine is used with an electric starter motor with drive-through capability located on a common drive shaft between the turbine and the compressor. A variable frequency drive (VFD) is connected between the electrical power grid and the electric motor for smooth startups, but also to allow excess turbine mechanical power to be converted to electrical power by the motor operating as a generator, and delivered to the grid at the grid frequency. Pulse width modulation technology may be used to reduce harmonic distortion in the VFD's output. The starter motor also functions as a helper motor when the turbine output is insufficient to drive the compressor at the rotational speed needed to meet throughput requirements.

The invention is a multi-end flexible direct current transmission system and a starting method thereof. The multi-end flexible direct current transmission system and the starting method thereof comprise two sending end converter stations and a receiving end converter station. A wind power plant is connected with the two sending end converter stations. The two sending end converter stations convert electric energy into direct current and transmit the direct current to the receiving end converter station though a direct current transmission line. The receiving end converter station converts the direct current into alternating current and is connected with a large power network. A first sending end converter station in the two sending end converter stations is connected with a second sending end converter station and the receiving end converter station through a direct current disconnecting switch (Sdc1). The second sending end converter station is connected with the first sending end converter station and the receiving end converter station through a direct current disconnecting switch (Sdc2). The receiving end converter station is connected with the first sending end converter station and the second sending end converter station through a direct current disconnecting switch (Sdc3). The starting procedure of the multi-end flexible direct current transmission system and the starting method thereof is stable and has a safe and reliable property and a wide range of application. The multi-end flexible direct current transmission system and the starting method thereof is used for multi-end flexible direct current transmission projects with modularization multi-end flat topological structures, and can decrease impact current on alternating current side or direct current side at the moment of deblocking of multi-end converter stations, and can stably generate direct voltage to a rated value.

A waste heat recovery apparatus includes a Rankine cycle (20) which includes a heater (22) for heating an operation fluid by waste heat from a heat-generating device (10), an expansion unit (23) for converting energy of expansion of the operation fluid flowing out from the heater (22) into mechanical energy, and a condenser (24) for condensing and liquefying the expanded operation fluid, a temperature detector (206) for detecting the temperature of the operation fluid on the inlet side of the expansion unit (23), a pressure detector (207) for detecting inlet-side pressure (Pex_in) of the expansion unit (23), a pressure detector (208) for detecting outlet-side pressure (Pex_out) of the expansion unit (23), and control units (30, 32). The control units control a command rotational speed (N_id) of the expansion unit (23) based on superheated degree information (SH) at the inlet of the expansion unit obtained from the operation fluid temperature and the inlet-side pressure, and pressure information (P) in which the outlet-side pressure (Pex_out) is considered.

Disclosed is an ophthalmic lens storage container comprising: a container body including a lens storage portion having a cavity for storing a lens and a preserving solution, and a flange surrounding the cavity; and a cover sheet stripably sealed to the flange in a sealing zone that extends around the cavity to thereby fluid-tightly seal the lens storage portion. The flange of said container body includes an insulating portion located radially outward of an open-end peripheral portion of the cavity, extending circumferentially and includes a shoulder surface that extends in a first direction opposite to a second direction along which the cavity is exposed, and the sealing zone is located radially outward of the insulating portion of the flange.

An input apparatus includes an input unit via which a user can point specific coordinates on a screen, and a display unit for displaying a graphical user interface (GUI). A menu for selecting an arbitrary item from a plurality of items is displayed on the GUI. When the user conducts manipulation to move a location of coordinates pointed by the user on the screen so as to draw a circle, center coordinates of a circle locus of the manipulation are presumed regardless of the location of the coordinates. An item selected in the menu is moved so as to be associated with a rotation angle of the manipulation with respect to the center coordinates. The user can conduct selection manipulation of consecutive menu items without depending upon the location of coordinates pointed by the user on the screen.

In the prior art in which permanent magnets are regularly arranged over the whole circumference of a rotor core, a satisfactory magnetic flux distribution is hard to obtain, and the cogging torque and the distortion factor of the induced electromotive force waveform are large, whereby characteristics of a rotating electric machine are poor. Also, because the permanent magnets are arranged over the whole circumference, a large number of permanent magnets are required and cost reduction is difficult. A permanent magnet rotating electric-machine of the invention comprises a stator provided with a plurality of windings, and a rotor in which magnets are disposed in slots formed in a rotor core along an outer circumference thereof, the rotor core being fixed on a rotary shaft rotating inside the stator, and in which one magnetic pole is constituted by each group of three or more of the magnets. A total angle occupied by the group of magnets constituting one magnetic pole is in the range of 150 to 165 degrees in terms of an electrical angle.

The invention discloses a start-stop method for a unified power flow controller. A start process comprises the steps of placing a parallel-side transformer into a parallel-side converter for charging and then unlocking the parallel-side converter to control the direct current voltage to be stable; unlocking a serial-side converter, and controlling the current of a by-pass switch of the serial-side converter to be close to zero; disconnecting the by-pass switch to connect a serial-side transformer to a line in series, wherein the serial-side converter enters a normal operation mode when the line stably runs; and during stop, switching the control mode of the serial-side converter firstly to enable the by-pass switch to be switched on in vicinity of zero current, controlling the current of the serial-side transformer to be gradually reduced into zero and stop the serial-side transformer, and then locking the serial-side converter and the parallel-side converter and stopping the parallel-side transformer. By the start-stop method for the unified power flow controller, the direct current overvoltage and overcurrent of the converter can be effectively inhibited when the serial-side transformer is switched off, the compact of current oscillation of an alternating current line to the serial-side transformer is reduced, and stable start and stop of the unified power flow controller are realized.