32results about How to "Improve the controllable range" patented technology

It is an object of this invention to provide a gas fuel supply system in which a controllable range in the fuel injection quantity control by an injector is enlarged. According to one preferable aspect of this invention, the gas fuel supply system comprises an injector provided in an intake pipe of an internal combustion engine, a fuel supply passage for supplying the gas fuel to the injector, and means for controlling pressure of the gas fuel supplied to the injector through the fuel supply passage by using negative pressure in the intake pipe such that the pressure of the gas fuel increases if the negative pressure in the intake pipe decreases, and the pressure of the gas fuel decreases if the negative pressure in the intake pipe increases.

A controller for an axial gap-type motor (3) comprises a rotor (11) having a permanent magnet and a first stator (12a) and a second stator (12b) opposed to each other with the rotor (11) interposed therebetween in the axial direction of revolution of the rotor (11). The controller further includes an electrification control portion which supplies a torque current (Iq) for generating a magnetic field to revolve the rotor (11) to an armature winding (13a) of the first stator (12a) and supplies a field current (+Id) for reinforcing the magnetic flux by the permanent magnet of the rotor (11) or a field current (−Id) for weakening the magnetic flux to an armature winding (13b) of the second stator (12b). Consequently, the controllable range of the motor is increased and the axial gap-type motor can be operated at higher velocity and higher torque.

The invention discloses an injection current control device of a hybrid active third harmonic injection matrix converter, and relates to the field of a hybrid active third harmonic injection matrix converter. In the injection current control device, a reactive component control bridge arm is connected across Between the x terminal and the z terminal of the voltage selector and connected to the y bridge arm terminal of the voltage selector through a path selection circuit, when the H3IMC operates with a non-unity power factor, it controls the reactive power according to the absolute value of the reactive component of the injected current The component controls the bridge arm, and controls the path selection circuit to form the corresponding flow path of the reactive component according to the positive and negative conditions of the reactive component; the injection current control device can solve the injection current out of control when the H3IMC is running in the forward non-unity power factor The problem is to enhance the reactive power control capability of its input side, broaden the actual controllable range of its input side power factor, and realize full input power factor control during forward operation.

The invention relates to the technical field of information, in particular to a range hood controller and control method based on a microwave radar gesture recognition technique. The range hood controller comprises a signal transceiver module, a gesture recognition module and a control module, wherein the signal transceiver module is used for periodically transmitting a microwave radar signal to apreset range and receiving a radar echo signal reflected by a hand part; the gesture recognition module is connected with the signal transceiver module and used for recognizing gesture actions of thehand part according to the radar echo signal and generating a recognition signal corresponding to the gesture actions; and the control module is connected with the gesture recognition module and usedfor forming a control signal corresponding to the recognition signal and being used for controlling a range hood to be started or stopped according to the recognition signal generated by the gesturerecognition module. According to the range hood and the control method thereof, the anti-interference property and the sensitivity are high, the control distance is long, and the more convenient and intelligent experience is brought for a user.

The invention provides a sucker type magnetorheological damping system and method, and belongs to the field of dampers. The damping system comprises a sucker module, a magnetorheological damping module, a support module, a controller and a connecting module; the sucker module, the magnetorheological damping module and the support module are coaxially mounted in sequence, and are connected with thecontroller through the connecting module; the controller is used for driving each part of the damping system and acquiring signals acquired by the sucker module; the connecting module comprises a motor driving wire, a coil driving wire, a negative-pressure pump driving wire, a sensor wire and a negative-pressure hose; and through design of a magnetorheological fluid bypass and combination with the atmospheric pressure and a force sensing function of a piezoelectric sensor, the relative movement between a sealing piece of a traditional magnetorheological damper and a shaft or a hole is prevented, so that uncontrollable friction force always existing in the magnetorheological damper is reduced, the lower limit of controllable damping force of the magnetorheological damper is reduced, and the controllable range of the magnetorheological damper is widened.

The embodiment of the present invention provides a train speed control method and device. When the target train is connected to the collided train, the traction cutting method is adopted to cut off the traction of the target train in advance, and the emergency braking of the target train can be triggered before the traction is cut off. The protection speed of the curve is increased to a speed close to the emergency braking curve, thereby increasing the controllable range of ATO control speed, which can shorten the gap between the running speed of the target train and the unbreakable speed, so as to meet the maximum allowable collision speed of the coupler. .

Embodiments of the present invention provide a control method, device, electronic device, and storage medium for an Internet of Things device. The method is applied to the first controller, including: listening to the first control instruction of the Internet of Things gateway; listening to the control state information sent by the second controller; according to the first control instruction and the control state information, determine the When the first state of the controlled object controlled by the second controller does not match the second state indicated by the first control instruction, broadcast the first control instruction.

A semiconductor device includes: a semiconductor substrate; a first semiconductor region formed in the reverse surface region of the semiconductor substrate and including a first conductivity type impurity; a second semiconductor region formed on the first semiconductor region in the semiconductor substrate and including a second conductivity type impurity; a third semiconductor region formed on the second semiconductor region in the semiconductor substrate and including a first conductivity type impurity; a trench passing through the second and third semiconductor regions and reaching the first semiconductor region; and a gate insulating film formed along the wall face of the trench; a gate electrode formed on the gate insulating film in the trench. Further, a pocket region including a second conductivity type impurity of which peak concentration is higher than that of the second semiconductor region is formed by a side of the trench between the second semiconductor region and the third semiconductor region.

The invention relates to a control method of a heat capillary flow in a liquid drop in the field of an MEMS (Micro Electro Mechanical System) technique. The method provided by the invention comprises the following steps: machining a miniature heater on a substrate by utilizing the MEMS technique, wherein the dimension of the miniature heater is in a micrometer level and the area partially covered by a heating filament is less than that of the contact surface of the liquid drop with the substrate; then placing the liquid drop at the upper part of the miniature heater and applying voltages at the two ends of the miniature heater; enabling the heating filament of the miniature heater to generate heat and partially heats the bottom of the liquid drop; and generating a temperature gradient in the liquid drop, thereby causing the heat capillary flow flowing of the fluid in the liquid drop and controlling the heat capillary flow in the liquid drop. The method provided by the invention can be used for rapidly and effectively adjusting the temperature of the miniature heater to control the temperature distribution of the liquid drop, thereby controlling the heat capillary flow in the liquid drop and enhancing the controllable range of the heat capillary flow.

The invention relates to a deflection correction method for a clay conveying pump of a heading machine. The method comprises the following steps of (1) determination of a pumping hole, wherein according to the deflection direction of the heading machine, a preformed hole in the direction identical to the deflection direction is selected to be formed in a heading machine shell or a hole is formed again and used as a pumping hole; (2) clay pumping for correction, wherein through the conveying pump, the clay is pumped to the soil from the determined pumping hole, and the reverse application forceduring clay pumping is used for correcting the heading machine; (3) gesture monitoring and ending standards, wherein in the process of clay pumping, the gesture of the heading machine is monitored intime, and after the gesture meets the deflection correction requirement, pumping is stopped instantly. According to the method, the conveying pump is adopted for pumping clay to the soil, pressurization filling is conducted constantly, the bearing capacity of the soil is improved, the reverse application force is provided for the heading machine shell, and the aim of gesture deflection correctionfor the heading machine is achieved. According to the method, deflection correction of the heading machine shell in the rolling, horizontal and vertical directions and the like can be achieved, and the method has the advantages that the deflection correction distance is short, the deflection correction effect is good, and the controllable range of the pumping pressure is wide.