85results about How to "High driving power" patented technology

To provide, in FINFET whose threshold voltage is determined essentially by the work function of a gate electrode, a technology capable of adjusting the threshold voltage of FINFET without changing the material of the gate electrode. FINFET is formed over an SOI substrate comprised of a substrate layer, a buried insulating layer formed over the substrate layer, and a silicon layer formed over the buried insulating layer. The substrate layer has therein a first semiconductor region contiguous to the buried insulating layer. The silicon layer of the SOI substrate is processed into a fin. A ratio of the height of the fin to the width of the fin is adjusted to fall within a range of from 1 or greater but not greater than 2. In addition, a voltage can be applied to the first semiconductor region.

A semiconductor device including: a semiconductor region having a first semiconductor face and a second semiconductor face connected to the first semiconductor face and having an inclination with respect to the first semiconductor face; a gate insulating film formed on the first and on the second semiconductor faces; a gate electrode formed on the gate insulating film including a part on a boundary between the first semiconductor face and the second semiconductor face; a source impurity region formed in the semiconductor region so as to overlap the gate electrode within the first semiconductor face with the gate insulating film interposed between the source impurity region and the gate electrode; and a drain impurity region formed in the semiconductor region directly under the second semiconductor face at least.

The invention relates to the coal mine roadway drivage machinery, in particular to a heavy hard rock tunneling machine which can cut a semi-rock roadway and a whole-rock roadway with high hardness. The tunneling machine solves the problem that the prior mole is not suitable for rock roadway drivage, can greatly improve the drivage working efficiency of the whole-rock roadway, and dramatically reduce working intensity of operators. The tunneling machine has an integral structure with high strength, a complete machine with heavy weight, a horizontal side support arranged on the back of the machine, and a device with high stability; the machine is provided with a mighty dust absorption system and an inside and outside spray dust suppression system, which effectively improves working environment of the operators; a traction of the tunneling machine adopts a full-sealed structure to increase traction driving force and improve propulsive force of the cutting; the tunneling machine has a small assembly, a large diameter and an inertia cutting head, adopts a reliable and highly-efficient hydraulic system matched with a high-strength point-attack pick, which greatly improves unidentate cutting force, thereby the tunneling machine has the ability of cutting the semi-rock roadway and the whole-rock roadway with high-hardness (f8).

The invention provides an all-wheel-drive hybrid electric vehicle and a control method thereof. The all-wheel-drive hybrid electric vehicle comprises front wheels, rear wheels, a hub motor, an engine, an ISG (integrated starter generator) motor, a clutch, an inverter and a power battery, the hub motor is connected with the front wheels and used for driving the same, the engine is connected with the rear wheels through a speed changer and used for driving the rear wheels, the ISG motor is connected between the engine and the speed changer and used for driving the rear wheels, the clutch is connected between the engine and the ISG motor, the inverter is connected with the hub motor and the ISG motor respectively, and the power battery is connected with the inverter and used for powering the hub motor and the ISG motor. According to the all-wheel-drive hybrid electric vehicle, performance in climbing, starting, accelerating and the like of the vehicle is improved, pure electric drive of four wheels is realized, a front driving device is simplified, oil consumption and emission are lowered, and fuel economy of the vehicle is improved.

The automatic voltage stabilizing regulation power source with variable far end load includes current feedback module, voltage feedback module and regulating power source module, and is connected via long distance power cable to the far end variable load terminal. The voltage sensor is connected parallelly to the output of output protecting circuit in the regulating power source module for sampling voltage, and the current sensor is connected serially to the output protecting circuit in the regulating power source module to detect real-time current in long distance power cable. The output is connected serially to matching circuit, full wave rectifier circuit, filter, A / D converter and microprocessor successively and connected to the I / O interface module of the regulating power source module and provide current feedback for the regulating power source module. The present invention has fast response, high precision sinusoid wave output and high driving power.

The invention discloses an inertial stabilization controller. The inertial stabilization controller comprises a main control module, an orientation motor driving module, a pitching motor driving module, a roll motor driving module, a rate gyro acquisition module, an angular position acquisition module, a data storage module, a serial port expansion module, a management control module, an inertial navigation module and a secondary power source module. The inertial stabilization controller integrates functions of driving, acquisition, storage, communication and synchronization into one body and greatly ameliorates a problem of single function of an inertial stabilization controller in the prior art. The inertial stabilization controller can eliminate influence of high carrier aircraft and low frequency disturbance on pendular or tracking imaging systems, is applicable to a single-axis, two-axis or three-axis inertial stabilization platform, has a wide application scope and is successfully applied to multiple models of aviation optical remote sensors.

The invention discloses an integrated hybrid power electric car drive unit, which comprises an engine, a power generator and a motor that are coaxially arranged in sequence; the rotor of the power generator is fixed to a suspension arm section; the shaft of the motor is provided with an extension section extended to the direction close to the power generator; a clutch is arranged between the extension section and the suspension arm section; the shell of the motor is provided with an extension section extended to the direction close to the engine; the stator of the power generator is fixed to the extension section; and the shell of the motor is fixedly connected with the engine. The integrated hybrid power electric car drive unit is compact in structure, convenient to mount, light in weight and low in cost, saves mounting space and can be directly mounted on the front cabin engine. For a drive mode, the integrated hybrid power electric car drive unit can realize independent drive of the motor, combined drive of the motor and the engine and combined drive of two motors and the power generator as the engine under the motor working condition, and provide higher drive power for a vehicle.

An aircraft, comprising an internal combustion engine by whose drive power a propeller can be driven, wherein the internal combustion engine cooperates with an electric machine which in a first operating mode is operable as electric motor and in a second operating mode as electric generator.

A driving system for an electric vehicle comprises a first driving unit, a second driving unit, a third driving unit and a vehicle control unit, wherein the first driving unit comprises a first motor controller, which is used for controlling a permanent magnet motor to start up or shut down, and the permanent magnet motor, which is used for driving two wheels to rotate; the second driving unit comprises a second motor controller, which is used for controlling a first hub motor to start up or shut down, and the first hub motor, which is used for driving the wheels to rotate; the third driving unit comprises a third motor controller, which is used for controlling the second hub motor to start up or shut down, and the second hub motor, which is used for driving the wheels to rotate; the vehicle control unit is used for calculating slip rates; and when the slip rates of the two wheels is not less than a preset value, the vehicle control unit transmits a control signal, which is used for controlling the permanent magnet motor to shut down and controlling the hub motors to start up, so as to shut down the permanent magnet motor and start up the first hub motor and the second hub motor. Large amounts of electric power can be prevented from being consumed. The invention further relates to a driving method for the electric vehicle.

The invention discloses a hydraulic hybrid power system for a road sweeper to solve problems of poor fuel economy and emission performance, large noise, bad working environment, difficult chassis layout and high cost of manufacture and use. The hydraulic hybrid power system for the road sweeper comprises a mechanical drive part and a hydraulic drive part. A hydraulic pump, a fan and a high pressure water pump obtain power from an engine through a suction device; a valve group is controlled to switch to different working positions through a hydraulic pressure, and the transfer between a freewheel mode, a creeping driving mode, an accumulator driving power mode and a braking energy recovery mode of the hydraulic system is realized. The hydraulic hybrid power system for the road sweeper can not only meets various functional requirements of a sweeper, but also greatly improves fuel economy and emission of a traditional road sweeper. Noise is small, working environment is good, structures of hydraulic components are compact and price is moderate, thus difficulty of chassis layout is reduced and cost of use is reduced.

The invention discloses a line controller power carrier communication structure which comprises a main controller and a line controller as well as a power carrier line used for connecting the main controller with the line controller. The line controller power carrier communication structure is characterized in that a driving circuit butted with the line controller is arranged on the main controller and comprises a transmitted signal processing circuit and a received signal conversion circuit; a sampling circuit and a rectifying voltage-stabilizing circuit are arranged on the line controller; the sampling circuit is used for converting and then outputting a control signal transmitted by the main controller to a line controller chip and encoding a command of the line controller chip to an electric signal and then transmitting the electric signal to the main controller; the rectifying voltage-stabilizing circuit is used for powering up the line controller. According to the invention, serial communication (four-line) of an original line controller is broken through, and according to a power carrier principle, two non-polar connecting lines are used as both a data transmission channel and a power supply channel, so that the functions of water heater running and water heater running state displaying of the line controller are realized.

The invention discloses a combined drive bionic elbow joint. The elbow joint comprises a combined power source, a joint casing and a drive portion for driving the joint to move. The combined power source comprises a memory alloy wire and a motor. The drive portion comprises a lead screw and a sliding block. The lead screw is driven by the motor to rotate, and the memory alloy wire is connected between the sliding block and the joint casing to be used for providing force for the sliding block along the axial direction of the lead screw. According to the elbow joint, the memory alloy and motor combined drive mode is used, large stress produced during deformation of the memory alloy wire is used ingeniously for offsetting most drive force of the joint moving, the joint is driven by the motor to rotate for the required angle accurately, the memory alloy wire and motor perfect combination is achieved, the drive power can be improved, and space is saved.

The invention discloses a dynamic variable speed optimization control method considering efficiency of an HMT (hydraulic mechanical transmission). The dynamic variable speed optimization control method considering the efficiency of the HMT includes: by calculating a hydraulic power split ratio rho<h> of an HMT drive system and efficiency of the HMT in mechanical-hydraulic double current driving, confirming a discharge ratio of a pump in the HMT drive system when the mechanical-hydraulic double current driving efficiency is maximum. By regulating the discharge ratio of the pump in the HMT drivesystem, the dynamic variable speed optimization control method considering the efficiency of the HMT enables the HMT drive system to keep working at the maximum driving efficiency moment all the timewhen the HMT drive system is in the mechanical-hydraulic double current driving, thereby improving dynamic performance of the HMT drive system.

The invention provides a driving source for a hydrogen thyratron control grid. The power of the driving source is supplied by a single-phase 220V power source. The driving source comprises a pulse transformer, wherein a pulse formation circuit is arranged at the primary level of the pulse transformer, and a negative bias generation circuit, a magnetic pulse compression circuit and an L-C low-pass matching circuit are arranged at the secondary level of the pulse transformer. According to the hydrogen thyratron control grid, the weight is reduced, the size is also reduced, and therefore integration of the driving source is facilitated; a hydrogen thyratron switch can be restrained from causing high frequency electromagnetic interference, connection of a hydrogen thyratron is avoided, the hydrogen thyratron is protected, and the service life of the hydrogen thyratron is prolonged; it can be ensured that the hydrogen thyratron works in an optimal state with low latency, low jitter, low drifting and high repetition frequency.

The invention provides an active control drive power supply for a shape memory alloy. The drive power supply uses a closed loop control system consisting of a current stabilized regulating controller, a gate turn-off thyristor and a current sensor; the current which is output to the shape memory alloy is controlled via continuously sampling weak voltage signals which are output by a digital-modulus converting card at a computer end so that the voltage signals at the computer end are in one-to-one correspondence with the output current intensity. Each case of the drive power supply is provided with three passages which can simultaneously and independently drive three shape memory alloy wires; in order to enable the power supply to adapt to an inductive load, each passage is provided with a capacitance and resistance absorbing module to prevent the gate turn-off thyristor from being punctured by the high voltage generated by the inductive load. The shape memory alloy active control drive power supply is simple in structure, convenient and fast in use, high in drive power, convenient in operation and wide in regulating range.

In a hybrid vehicle including a front motor (3) for driving front wheels, a rear motor (5) for driving rear wheels, a generator (7) for generating power by being driven by an internal combustion engine, and a step-up converter (15) for stepping up the voltage from a battery (8) and supplying power to the front motor (3), while stepping-down the generated power of the generator (7) and supplying the power to the rear motor (5), a hybrid control unit (20) decreases the power supplied from the generator (7) to the rear motor (5), and increases the power supplied from the battery (8) to the rear motor (5) when input power of the step-up converter (15) is limited based on a temperature condition of the step-up converter (15).

The present invention pertains to the field of firefighting equipment, concretely relates to an automatic foam proportional mixing digital display controlling module and consists of microcomputer control unit, sensor unit and driver unit. The microcomputer control unit consists of circuit board component, electric signal connector, display and operating mechanism, and housing. They are overlapped in the housing. The circuit board component consists of microprocessor, electric signal input interface, electric signal output interface and digital communication interface. The electric signal connector and the display and operating mechanism are inside the housing; the sensor unit includes water flowmeter, foam flowmeter, and one or several types of level sensor or pressure sensor; the driver unit includes one or several types of DC brushless motor driver and electric valve driver; the electric signal input interface, electric signal output interface and digital communication interface of the electric circuit component are connected to the sensing component of the sensor unit and the driving component of the driver unit with electric signal connector. The present invention may greatly raise the automation degree of proportional foam mixing, and realize accurate control and adjustment of less than 1% mixing proportion.

The outdated design idea of a closed direct current brushless motor controller driven by a high power MOS tube single module is reformed. Incomplete symmetry and PWM moment drive state and circuit layout irrationality of a direct current brushless motor controller load are discarded. According to the high power direct current brushless motor controller, a chopper function is realized; a single module which is composed of six high power MOS tubes is a unit; according to an actual need, free matching can be carried out, and an open direct current brushless motor controller is formed; separation of a drive module and a control module is realized; and the modules are combined with a control bottom plate through an open structure. Through the control bottom plate, the work mode of each single module and a peripheral circuit is coordinated. The construction of the direct current brushless motor controller is flexible. A module and the bottom plate can be used together. A number of modules and the control bottom plate can be combined for use. The controller can be used by a small power direct current brushless motor, such as the direct current brushless motor controllers of an electric bicycle and an electric tricycle. The controller can be used by a high power direct current brushless motor, such as the direct current brushless motor controller of an electric vehicle.

The invention relates to an efficient and environmental friendly AC-DC conversion isolation power supply circuit, which can solve the problem that the prior art has high requirements for resources and is harmful for environmental protection and low in efficiency. Main points of the technical solution are that the efficient and environmental friendly AC-DC conversion isolation power supply circuit comprises an input port and an output port, the input port is connected with an AC power supply, and the output port outputs direct current. The efficient and environmental friendly AC-DC conversion isolation power supply circuit further comprises a positive transforming circuit, a negative transforming circuit, a positive triggering circuit, a negative triggering circuit, a positive conductive switching circuit, a negative conductive switching circuit, a positive filtering circuit and a negative filtering circuit, wherein the positive transforming circuit and the negative transforming circuit transform by adopting a charging and discharging mode. The AC-DC conversion isolation power supply circuit provided by the invention is efficient and environmental friendly. The AC-DC conversion isolation power supply circuit does not need electromagnetic coil transformation, is low in production cost, small in occupied space, has no electromagnetic pollution, and does not have electromagnetic coil loss. Adoption of an optocoupler enables isolation to be effective, and the AC-DC conversion isolation power supply circuit has the substantial effects of low cost, high driving power, high efficiency and environmental protection.

The invention relates to a reversing valve, in particular for opening and shutting off a mixing head. Said valve comprises a housing (12) that is equipped with a fluid supply (14) and a fluid drain (16) and a blocking element (18), which co-operates with a seat (20) in the vicinity of the fluid drain (16) in such a way that when said blocking element (18) is placed against the seat (20), a flow path between the supply (14) and the drain (16) is sealed and when the blocking element (18) is raised from the seat (20), the flow path between the supply (14) and the drain (16) is opened. The blocking element (18) has a plunger (38), either side of which is provided with a first working chamber (24) and a second working chamber (22) that may be filled with the fluid. The aim of the invention is to ensure a functionally reliable reversing process, even when small drives are used. To achieve this, the valve is equipped with a pilot stage (28, 30, 40, 44) comprising a switching element (28) and said pilot stage (28, 30, 40, 44) is configured and connected to the supply (14) and drain (16), in addition to the two working chambers (22, 24), in such a way that in a first switching state of the switching element (28) the pressure from the supply (14) prevails in both working chambers of the plunger (38) and in a second switching state of the switching element (28), the pressure from the supply (14) prevails in the second working chamber (22) of the plunger (18) and the pressure from the drain (16) prevails in the first working chamber (24).

The invention discloses a hydraulic / mechanical hybrid servo press transmission system. The system comprises a motor (1), a hydraulic pump (2), an oil tank (3) and a hydraulic motor (9). The motor (1) drives the hydraulic pump (2), the hydraulic pump (2) and the hydraulic motor (9) form a closed hydraulic circuit, an oil inlet of the hydraulic pump (2) is connected with an oil outlet of the hydraulic motor (9) through a pipeline, the hydraulic pump (2) supplies oil to the hydraulic motor (9) through the pipeline, and the oil tank (3) supplies oil to the system through the pipeline. The hydraulic motor (9) drives a crankshaft (12) to rotate, and the crankshaft (12) drives a slider (13) on a press (11) to move up and down. System safety is guaranteed by additional arrangement of an overflow valve (6). By comprehensive application of mechanical / hydraulic hybrid transmission, the hydraulic / mechanical hybrid servo press transmission system has advantages of high driving power, easiness in pressure and speed control, high stability, energy saving, high flexibility and the like.

The invention relates to a device for controlling a platform to freely lift, translate and overturn, in particular to a platform with six degrees of freedom of motion. The platform is of a frame structure provided with a panel on the upper surface and is at least articulated with six drive parts; three of the six drive parts are lifting drive parts which are triangularly arranged below the platform, and two ends of the lifting drive parts are respectively provided with universal joint type hinges; the other three of the six drive parts are translation drive parts which are provided with jointbearing type hinges at two ends; the lifting drive parts are used for driving the platform to move along a Z-axis direction, and / or swing around an X-axis, and / or swing round a Y-axis; and the translation drive parts are used for driving the platform to move along the X-axis and / or Y-axis direction and / or swing around a Z-axis. The platform can be controlled to randomly move and / or rotate withinsix degrees of freedom and has the characteristics of small size, flexible running, high bearing capacity, easy assembly and disassembly, and the like.

The invention belongs to the technical field of motorcycles, and particularly relates to a novel electric motorcycle which comprises a frame, a front wheel and a rear wheel. The power battery is arranged in the frame and located between the front wheel and the rear wheel; the controller is arranged between the front wheel and the rear wheel; the driving system comprises a motor and a power transmission system, the motor is connected with the controller and arranged in front of the rear wheels, and the torque of the motor is transmitted to the rear wheels through the power transmission system; and the power battery, the controller and the motor are electrically connected. The motor is arranged on the rack and located on the front side of the rear wheel, the external motor and the driving system are adopted to drive the rear wheel relative to the rear wheel, the maximum torque of the wheel end is increased through the driving system to obtain the acceleration performance, and the strength is improved; Meanwhile, by adopting the motor arrangement mode, higher driving power can be designed to meet the requirement of the maximum speed of a large motorcycle.

Provided is a continuous trajectory control method for a 3-degree of freedom pneumatic manipulator. The method is characterized in that a proper control strategy is adopted; a pneumatic proportion / servo position system can compensate for defects such as poor rigidity, and poor resistance to external interference and achieves a trajectory tracking feature; the system can also be compared with an expensive motor-servo system; the pneumatic proportion / servo position control system utilizes features such as simple structure, high driving power, high control precision, and high cost performance so that an excellent application prospect in the industrial automation field is obtained.

The invention discloses an acousto-optic deflector with a large scanning angle, which is characterized in that: an off-axis angle of ultrasonic propagation of the acousto-optic deflector is 8-11 DEG; the length of a transducer is 0.5-2mm; and a driving device for enlarging the acousto-optic deflector is a pulse driving circuit, and the average power of the pulse driving circuit is 3-10W. The work time of the pulse driving circuit in a pulse period is less than the thermal relaxation time of a device and the rest time is more than the thermal relaxation time of the device. According to the invention, the problem that the range of the scanning angle is restricted due to the disability of the acousto-optic deflector for bearing high power is overcome, the scanning angle reaches 4-6 DEG which is 2-3 times of the scanning angles of conventional acousto-optic deflectors, and rapid laser scanning in large fields of view can be realized; and the acousto-optic deflector with the large scanning angle is suitable for the occasions requiring large scanning angles and discontinuous scanning and can be applied to the fields of biological microscopy imaging, laser rapid displaying and recoding systems, laser measurement and control, laser micro-processing and the like.

The invention relates to a flexible wire drive device which comprises a gear motor mechanism, a clutch mechanism, flexible wire wheel mechanisms and an elastic pre-tightening device. The flexible wirewheel mechanisms comprise flexible wire wheels. The flexible wire wheels are used for fixing one ends of flexible wires and are fixed to clutch shafts of the clutch mechanism and driven by the clutchshafts to rotate. The clutch mechanism is in engaged connection with the output end of the gear motor mechanism. Whether the clutch mechanism and the gear motor mechanism are engaged or not is controlled through on-off of a clutch of the clutch mechanism, and therefore on-off of torque transmission of the gear motor mechanism and the flexible wire wheels is controlled. The elastic pre-tighteningdevice is a torsion elastic device, the twist center of the elastic pre-tightening device is fixed, and the twist outer portion of the elastic pre-tightening device is fixedly connected with the flexible wire wheels. According to the flexible wire drive device, it can be guaranteed that a driven execution mechanism does not achieve self locking, the flexible wire wheels can be pre-tightened and cannot be wound, and the stroke range of the execution mechanism can be further adjusted.

The invention relates to an efficient water flow power generation device and a water flow inner power generation method and belongs to the field of hydraulic power generation devices. The efficient water flow power generation device comprises a shell. The shell is installed on a main shaft and provided with fan blades. Each fan blade is provided with a rotating shaft. Each rotating shaft is inserted into one corresponding rotating power box in the shell. Each rotating power box drives the corresponding fan blade to rotate through the corresponding rotating shaft. The shell is installed on the rotating shafts. An angle sensor A is arranged at the tail end of each rotating shaft and measures the rotating angle of the shell. A control device is arranged in the shell. The signal output end of each angle sensor A outputs signals to the control device. The control device controls the rotating power boxes to drive the fan blades to rotate according to angle signals fed back by the angle sensors A. A power output shaft is arranged on the side face of the shell. The power generation device can be widely applied to various flowing water areas, and the investment cost is low.