36results about How to "Avoid stalled situations" patented technology

The invention provides a vehicle-based control system and a vehicle, which relate to the field of traffic. The system comprises a controller, a supercharger, an air inlet heating grid and a cavity structure, wherein the air inlet heating grid is arranged in the cavity structure, one end of the cavity structure is connected with the first end of the supercharger turbine rear exhaust pipeline through a cavity air inlet pipeline, a first valve is arranged on the cavity air inlet pipeline, the second end of the supercharger turbine rear exhaust pipeline is connected with the supercharger, and theother end of the cavity structure is connected with the cavity exhaust pipeline; the supercharger is used for discharging the waste gas after the turbine is pushed to do work into the supercharger turbine rear exhaust pipeline; and the controller is used for obtaining an external environment temperature value and controlling the first valve to be opened when the environment temperature value is determined to be smaller than the environment temperature critical threshold value, so that waste gas in the supercharger turbine rear exhaust pipeline enters the cavity structure. The problems that theair inflow of the engine is affected and the power of the engine is insufficient due to the fact that the air inlet heating grid is frozen can be solved.

The invention discloses a water quantity control method, a device and a computer-readable storage medium for a drawer type dish-washing machine. The water quantity control method for the drawer type dish-washing machine comprises the following steps of: opening the water inlet valve of the target drawer; acquiring a current water quantity of the target drawer through the water level sensor, and judging whether the current water quantity is lower than a first threshold value or higher than a second threshold value; if the current water amount is lower than the first threshold value, keeping theopening state of the water inlet valve of the target drawer; if the current amount of water is higher than the second threshold, opening the drain valve of the target drawer to control the amount ofwater of the target drawer between the first threshold and the second threshold. The method can accurately detect the water level of the dish-washing machine in real time by the water level sensor, not only avoids the excessive water intake due to the failure of the flow meter, but also avoids the condition that the motor is stopped when the amount of water in the dishwasher is too small.

The invention relates to a control method, a control device and control equipment of a fan head. The method comprises the steps of controlling the fan head to swing towards a first side; receiving position information, which is obtained by a laser sensor through a signal slot formed in a swing gear of a fan, of the fan head in the process that the fan head swings; and controlling the fan head to swing by using a corresponding swing strategy according to the position information of the fan head. According to the embodiment, even if the center position of the fan head is changed when the fan head is pushed by external force in the process that the fan head swings, the position information of the fan head can be obtained in time by the control equipment, and therefore, the corresponding swing strategy of the fan head can be adjusted in time according to the position information, so that the fan head is controlled to symmetrically swing according to the swing strategy, the condition that the fan head and a head structure are stuck is avoided, the service life of the fan is prolonged, noise of the fan due to a locked rotor of a motor is reduced, and the user experience is increased.

The invention relates to a speed reduction method for a jet engine of a motorcycle, comprising the steps of speed reducing, high rotating speed detecting, first controlling, low rotating speed detecting, second controlling and idle speed controlling. The reduction amplitude of the rotating speed of the engine is judged in the first controlling step, and then the fuel oil injection strategy for an electronic control unit is determined, so that when the motorcycle slows down, no excessive fuel oil is injected into the engine, the fuel oil waste is effectively reduced, the exhaust pollution is lowered, and the oil sediment on an exhaust pipe is avoided; in addition, in the second controlling step and the idle speed controlling step, the amount of fuel oil injected to the engine is controlled, the case that engine flameout caused by lack of fuel oil in the process of speed reducing and speed idling is prevented, thus to effectively improve the ride marketability of the motorcycle.

An engine stall preventive method is applicable to a vehicle comprising a belt motor generator and an engine; the belt motor generator is in dynamic connection with the engine; the belt motor generator has a power generating mode where the generator is driven by power of the engine to generate electricity and a motor mode where the generator drives the engine to run. The method includes: during running of the engine, determining that the engine is in a non-idle stall mode; if the speed of the engine is less than a low threshold, allowing the engine to enter in a staff preventive mode including switching the belt motor generator to the motor mode; increasing a torque output value of the belt motor generator till the speed of the engine being greater than a high threshold.

The invention provides a cold start control method and device and an electronic control unit. The method comprises the following steps that when the cold start of an engine is detected, an engine parameter and an air inlet heating relay parameter are acquired; whether the engine parameter meets a first preset overheating protection condition or not is judged, and whether the air inlet heating relay parameter meets a second preset overheating protection condition or not is judged; if the engine parameter meets the first preset overheating protection condition and the air inlet heating relay parameter meets the second preset overheating protection condition, a preset overheating protection coefficient is set to be a preset protection value, so that an overheating protection device stops performing overheating protection operation according to the preset overheating protection coefficient set to be the preset protection value. According to the method and device and the unit, the situationthat the intake air temperature is too high due to heating of an air inlet heating grid, so that the overheating protection operation is performed, and then the engine flameout is generated is effectively avoided.

The invention relates to a mechanical loosening device, in particular to a self-adjusting loosening device which comprises a loosening cabin, a loosening drum, an air inlet pipe, and a rotating power element which drives the loosening drum to rotate, wherein the loosening cabin of a truncated cone shape, includes a feed hopper arranged at the top end of the loosening cabin and a discharge port installed on the right wall of the loosening cabin; the air inlet pipe is communicated with the left wall of the loosening cabin, and the loosening drum is rotatably connected in the loosening cabin; the loosening drum includes a fast cutting mechanism, a loosening mechanism, a rotating shaft and an inner blocking cylinder which is arranged in the loosening drum; a drum wall of the loosening drum and the inner blocking cylinder are both fixed on the rotating shaft which is rotatably connected on the loosening cabin and connected with the rotating power element, and the drum wall is divided into a feed part of a coniform shape and a discharge part of a truncated cone shape. In order to solve the problem of winding fibers on the loosening drum, the self-adjusting loosening device aims to provide the self-adjusting loosening device capable of avoiding fiber winding.

The invention belongs to the field of control of commercial vehicles, and particularly relates to a hill starting control method for a pure electric commercial vehicle based on real-time mass identification. The hill starting control method comprises the following steps: judging whether the vehicle enters a hill starting mode or not; calculating hill gradient and vehicle mass after the vehicle enters the hill starting mode; and before an accelerator pedal is stepped on, keeping the vehicle static under the action of hydraulic braking force. After the accelerator pedal is stepped on, the sum ofdriving torque and braking torque is equal to hill equivalent torque; when motor torque is greater than motor stalling torque, the vehicle does not start, a motor controller controls the motor torquenot to increase along with the increase of the opening degree of the accelerator pedal until the opening degree of the accelerator pedal is increased to the state that the torque is greater than thehill equivalent torque, and braking torque is quickly removed. According to the method disclosed by the invention, after the accelerator pedal is stepped on, the motor driving torque, the braking torque and the hill equivalent torque are balanced, and thus, the circumstances that the motor is blocked and the vehicle moves suddenly and slips during starting are avoided.

The invention discloses a full-automatic double-motor intelligent lock and relates to the technical field of security and anti-theft intelligent locks. The full-automatic double-motor intelligent lockcomprises a driving mechanism, an oblique tongue transmission mechanism, a main tongue pushing mechanism, an auxiliary tongue transmission mechanism, controllers, sensors, a lock body upper shell, aspeed reducing mechanism and a trigger tongue mechanism, wherein the driving mechanism, the oblique tongue transmission mechanism, the main tongue pushing mechanism, the auxiliary tongue transmissionmechanism, the controllers, the sensors, the lock body upper shell, the speed reducing mechanism and the trigger tongue mechanism are arranged on a lock body lower shell; the speed reducing mechanismis meshed with the driving mechanism and used for reducing the rotating speed of the driving mechanism and improving output torque; the speed reducing mechanism shifts the oblique tongue transmissionmechanism to make an oblique tongue do telescopic action; the speed reducing mechanism sleeves the main tongue pushing mechanism and drives a main tongue to do telescopic action; the main tongue pushing mechanism is connected with the auxiliary tongue transmission mechanism through blade arms to make an auxiliary tongue do telescopic action; and the trigger tongue mechanism triggers the oblique tongue transmission mechanism and is capable of controlling a locking oblique tongue not to pop out after retracting. According to the full-automatic double-motor intelligent lock in the invention, thelocking oblique tongue transmission mechanism can be controlled not to stretch out via the trigger tongue mechanism; even unlocking is delayed, secondary reverse rotation of the motors is not caused;and the two sets of controllers control the two sets of motors and the two sets of sensors to be mutually standby when the two sets of motors and the two sets of sensors have faults.

The invention discloses a clutch mechanism of an electric pipette. The clutch mechanism comprises a screw rod nut, a screw rod and a piston rod, the piston rod is arranged in a piston cylinder, the screw rod nut is driven by a driving motor to rotate in a forward and reverse direction, the upper end of the screw rod is connected with an inner thread of the screw rod nut, the lower end of the screwrod is connected with the upper end of the piston rod, a limiting groove is formed in the end part of the lower end of the screw rod nut, the limiting groove is coaxial with the inner thread of the screw rod nut, and the axial length of the screw rod connected with the piston rod is less than or equal to the distance between the bottom of the limiting groove and the bottom of the piston cylinder.According to the clutch mechanism of the electric pipette, when a motor is out of control or a piston is continuously driven to move downward, the situation that the piston rod abuts against the bottom of the piston cylinder and cause the motor stalling can be effectively avoided, and thus the safe and stable operation of the pipette is ensured.

The invention discloses an electromagnetic exhaust braking device for an automobile, which comprises an exhaust valve, wherein the exhaust valve comprises an exhaust pipe body with an exhaust port, arotating shaft coaxially arranged in the exhaust pipe body and a disc which is fixed to the rotating shaft and can block the exhaust port of the exhaust pipe body, the exhaust valve is connected withan electromagnetic driving mechanism capable of driving the rotating shaft to rotate to open or close the exhaust port, the electromagnetic driving mechanism comprises an electromagnetic mechanism shell, an electromagnetic coil arranged in the electromagnetic mechanism shell and an iron core which is arranged in the electromagnetic coil and can move forwards and backwards under electromagnetic force, and a push rod mechanism capable of enabling the rotating shaft to rotate is connected between the iron core and the rotating shaft. In the electromagnetic driving device, an auxiliary push rod and a main push rod are flexibly connected, a compensation spring is arranged between the auxiliary push rod and the main push rod, and if there is an error in the attraction position of the iron core,the compensation spring can be compressed by electromagnetic force to compensate the error when the movement stroke of components of the disc is small, and the iron core and a base cannot be completely attracted or the disc cannot be completely closed.

The invention discloses gas equipment, a control method and device of the gas equipment and cooking equipment. The gas equipment comprises a valve body, an ignition device, a flow adjusting unit and aflameout device, and the valve body comprises a gas inlet and a gas outlet communicating with a valve cavity; the ignition device comprises an ignition unit, a first electrode terminal and a first driving unit connected with the valve body; the first electrode terminal is electrically connected with a power supply loop of the ignition unit; when the first driving unit moves to be in contact withthe first electrode terminal, the ignition unit is powered on, and the air outlet is converted into a ventilation state from a closed state; the flow adjusting unit is connected with the valve cavityand used for adjusting the flow of fuel gas flowing through the gas outlet; and the flameout device is connected with the first driving unit and used for controlling the first driving unit to move sothat the air outlet can be converted into the closed state from the ventilation state. According to the gas equipment, the control method and device of the gas equipment and the cooking equipment, theignition device, the flow adjusting unit and the flameout device are separately arranged, so that the problems of flameout and inaccurate firepower adjustment of existing gas equipment are avoided.

The invention relates to a single-ring fire burner and belongs to the technical field of kitchen ranges. The single-ring fire burner comprises a furnace end and a fire cover arranged on the furnace end; the furnace end is provided with a thick injecting pipe and a thin injecting pipe; the thick injecting pipe is communicated to an annular gas channel which is internally and independently providedwith an auxiliary cavity communicated with the thin injecting pipe; and a gas supplying port of the auxiliary cavity is arranged corresponding to an ignition assembly. According to the single-ring fire burner, due to the fact that the two injecting pipes are used for controlling firepower, the burner can accurately adjust a large fire and a small fire; and a same fire ring is used for supplying gas for the large fire and the small fire of the burner, and by expanding the diameter of the fire ring, the pan bottom can also be heated uniformly during a small fire. Besides, according to the single-ring fire burner, by arranging the auxiliary cavity communicated to the thin injecting pipe, gas is continuously supplied for the ignition assembly at constant amount, and it is avoided that the flameout condition happens to the burner in the small fire adjusting process.

The embodiment of the invention discloses a vehicle acceleration control method, a control system and a vehicle. The vehicle acceleration control method is applied to the vehicle acceleration controlsystem, the acceleration control system comprises a vehicle control unit and an engine controller connected with the vehicle control unit, and the method comprises the steps that when a vehicle is inan idling state, the vehicle control unit detects whether a load adjusting signal of the preset type is received; if the vehicle control unit receives the load adjusting signal of the preset type, thevehicle control unit outputs a rotating speed presetting signal to an engine controller; and the engine controller responds to the rotating speed presetting signal to increase the rotating speed of the vehicle to a preset rotating speed. According to the acceleration control method, the vehicle control unit outputs the rotating speed presetting signal after receiving the load adjusting signal ofthe preset type, and controls the engine controller to pre-increase the rotating speed of the engine, so that the engine is controlled to act within the time of waiting for load adjustment, and the rotating speed adjusting time of the engine is shortened; and the acceleration efficiency of the engine is improved.