35results about How to "Meet Torque Demands" patented technology

The invention discloses an electrically-aided turbocharging system, and belongs to the technical field of turbocharging. The invention aims at providing an optimized electrically-aided turbocharging system adequately utilizing a turbine body structure, and a control method thereof. One end of the electrically-aided turbocharger disclosed by the invention is installed at an inlet end of an intake channel, and the other end of the electrically-aided turbocharger is installed at an outlet end of an exhaust channel; the electrically-aided turbocharger is composed of an aiding high-speed motor, a compressor, a turbocharger rotary shaft, a turbine and a waste gas bypass valve device; an intercooler is installed on the intake channel; an intake branch pipe is connected to a tail end of the intake channel; an exhaust branch pipe is connected to an inlet end of the exhaust channel; a gasoline engine cylinder is directly connected between the intake branch pipe and the exhaust branch pipe; the exhaust channel behind the exhaust branch pipe is divided into a first passage and a second passage which are connected in parallel; and tail ends of the first passage and the second passage both communicate with an outlet pipeline. According to the electrically-aided turbocharging system disclosed by the invention, the high-speed motor is combined with the turbocharger with the waste gas bypass valve, thus the influence of waste gas turbocharging for the performance of a gasoline engine is furthest utilized.

The invention discloses an adjustable water nozzle for oilfield water injection and a water distributor with the same, and belongs to the technical field of oilfield separate zone water injection. The adjustable water nozzle comprises a valve sleeve and a valve core, wherein the valve sleeve has a cavity structure and is provided with a water outlet hole; the valve sleeve is in threaded fit with the valve core; the valve core is in seal fit with the conical surface of the water outlet hole of the valve sleeve; the head of the valve core is provided with a side hole; a cavity is formed betweenthe valve sleeve and the valve core outside the side hole; a water inlet hole is formed in the valve core; and the tail part of the valve core is provided with a claw. The water distributor has a tube-shaped structure; the adjustable water nozzle is vertically arranged on the side of the water distributor and is communicated with the inner wall and the outer side of the water distributor; a bridge channel for water injection is formed in the wall of the water distributor; and a water nozzle adjuster for controlling the adjustable water nozzle is arranged in the water distributor. The adjustable water nozzle and the water distributor can accurately control water injection rate and are suitable to be popularized in the technical field of the oilfield separate zone water injection.

An electric motor arrangement comprising an electric motor having a rotor, a stator, a first coil set and a second coil set. The first coil set is arranged to form a first sub motor with a control device being arranged to control current in the first coil set to generate a first torque on the rotor. The second coil set is arranged to form a second sub motor with the control device being arranged to control current in the second coil set to generate a second torque on the rotor. The first sub motor is arranged to have a first torque efficiency profile and the second sub motor is arranged to have a second torque efficiency profile. A controller is provided to determine a first torque value generated by the first sub motor and a second torque value generated by the second sub motor in response to a requested torque demand based on a required torque efficiency profile for the electric motor.

The invention provides a hill starting control method of a double-model HEV (Hybrid Electric Vehicle). The method comprises the steps of acquiring a demand torque of a vehicle; comparing a demand torque with a peak value output torque of a main drive motor; if the demand torque is less than or equal to the peak value output torque of the main drive motor, providing the demand torque by the main drive motor; if the demand torque is more than the peak value output torque of the main drive motor, attracting a clutch, and further judging whether the existing travel speed is less than the preset vehicle speed; if the existing vehicle speed is less than the preset vehicle speed, providing the demand torque by an auxiliary motor and the main drive motor; if the existing vehicle speed is greater than or equal to the preset vehicle speed, providing the demand torque by an engine, the auxiliary motor and the main drive motor. According to the hill starting control method of the double-model HEV provided by the invention, the stability of the vehicle can be ensured when the demand torque is larger (for example, the hill starting is carried out), and the power demand can be maximally met. The invention further provides a hill starting control system of the double-model HEV and an HEV.

The invention relates to an engine system, and a method in an engine system comprising an internal combustion engine having at least two cylinders (C1-C6) at each of which a piston (3), at least one inlet valve (5), at least one exhaust valve (7), and fuel injection means (11), for injection of fuel directly into the cylinder (C1-C6), are provided, the engine system also comprising an engine control unit (9). The engine control unit (9) is adapted to control the engine so as to operate in a homogenous charge compression ignition mode (HCCI) in at least one of the cylinders (C1-C3), and simultaneously operate in another ignition mode (SI) in at least one of the remaining cylinders (C4-C6).

The present invention discloses systems and methods for meeting wheel torque demand in a hybrid vehicle. The hybrid vehicle comprises an engine, a dual clutch transmission coupled to a driveline of the vehicle downstream of the engine, and an electric machine coupled to the driveline downstream of the dual clutch transmission. In one example, a method comprises transferring transmission input torque through a clutch of the dual clutch transmission controlled to a first capacity, and in response to a desired transmission input torque exceeding the capacity, increasing torque output of the electric machine coupled downstream of the dual clutch transmission to assist in meeting a wheel torque demand. In this way, a driver-requested increase in acceleration may be met under conditions where transmission input torque is limited by clutch capacity.

The invention provides a driving device and an injection molding machine provided with the driving device. The driving device comprises a speed reducer and a plurality of servo motors. The speed reducer is provided with a plurality of input shafts, an output shaft and a gear set. The gear set is connected between the input shafts and the output shaft and used for decelerating and synthesizing movement input of the input shafts and transmitting the movement input of the input shafts to the output shaft for single-shaft output. Output shafts of the servo motors are connected with the input shafts of the speed reducer correspondingly, so that movement input to the input shafts of the speed reducer is achieved. The driving device is used for driving a screw in a charge pipe assembly in the injection molding machine. According to the driving device and the injection molding machine provided with the driving device, the effect that input of the relatively-small-torque servo motors forms single large-torque output is achieved, and the torque requirement for screw driving of the large injection molding machine is met.

The invention discloses a high-torque motor for a multi-rotor unmanned aerial vehicle. The high-torque motor comprises a shell, a drive shaft, an electric brush and a commutator, wherein the commutator is in contact connection with the electric brush and is arranged on the drive shaft; a middle segment, located in the shell, of the drive shaft is fixedly sleeved with a rotor main body formed by superposing multiple silicon steel sheets; the rotor main body is provided with a winding group formed by multiple windings; and a corresponding permanent magnet group is arranged at the position, closeto the inner wall of the shell, on the outer circumference, employing the drive shaft as the circle center, of any layer of winding in the winding group. The magnetic field can be strengthened underthe condition of the same voltage supply through correspondingly adding the multiple windings and permanent magnets, thereby increasing the torque; and furthermore, multiple layers of windings are arranged along the direction of the drive shaft in a staggered manner, so that the problem of a dead angle in a gap between magnetic force and driving force can be solved and torque output is more linearand stable.

The invention provides a planetary gear electrically-driven force joining device which can perform large torque power output within a limited space to meet equipment design needs. The planetary gear electrically-driven force joining device comprises a solar wheel, wherein the center shaft of the solar wheel is bulged to form an output shaft; a plurality of planetary gears are annularly distributed on the peripheral gear ring of the solar wheel; the input shaft of each planetary gear is connected to a corresponding drive motor; the output end of each drive motor is fixedly connected to an input shaft of one planetary gear; the drive motor is fixed in position; an outer gear ring is arranged at the periphery of an equivalent gear ring formed by the planetary gears; the teeth on the inner wall of the outer gear ring are in engaged connection to the planetary gears on corresponding positions; the radial inner sides of the planetary gears are in engaged connection to the corresponding positions of the solar wheel; and the outer gear ring is driven by the planetary gears to rotate by taking the output shaft as a center shaft.