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46 results about "Accelerograph" patented technology

An accelerograph can be referred to as a strong-motion instrument or seismograph, or simply an earthquake accelerometer. They are usually constructed as a self-contained box, which previously included a paper or film recorder (an analogue instrument) but now they often record directly on digital media and then the data is transmitted via the Internet.

Method and device for controlling gas supply of dual-fuel engine

The invention discloses a method and a device for controlling gas supply of dual-fuel engine, which can effectively solve the problems of starting difficulty in northeast region, and applies closed-loop control to achieve a reasonable air-fuel ratio between air and fuel; when the temperature of coolant is increased, the supply of natural gas is cut off and liquefied gas is supplied for combustion, thus under the premise of ensuring the dynamic performance of the engine, gas is reasonably used; meanwhile, an electronic gas-saving gate device is used, which can overcome the drawbacks of engine accelerograph and guarantee securer and more efficient operation. The method for controlling gas supply of dual-fuel engine comprises the following steps: a softness controlling method for quickly cutting off natural gas and liquefied gas, a closed-loop controlling method for excess air ratio of the natural gas and the liquefied gas, an automatic repairing function for failure, and a bad condition self-learning controlling method. The device for controlling gas supply of dual-fuel engine comprises a supply system for natural gas and liquefied gas, a closed-loop actuator, a supply controlling module and a micro controller, a CAN communication module and a serial-port communication module.
Owner:BAZHOU HUAWEI ENGINE TECH +2

Control method for manual control accelerograph for automobile and system thereof

The invention relates to a control method for a manual control accelerator for a vehicle and a system thereof. The method comprises manual control of the accelerator, foot control of a brake, united control between the brake and the accelerator, independent work of the accelerator, and independent work of the brake; and the system comprises a manual control accelerator system, a foot control brake system, a united control system of the foot control brake system and the manual control accelerator system, wherein the manual control accelerator system comprises the manual control accelerator, a sensor, a microcomputer and an actuator which are arranged on a steering wheel and a shifting handle in parallel, and the microcomputer is connected with a manual control accelerator device, the sensor and the actuator respectively. The system changes the foot control accelerator of an automobile into the manual control accelerator, to make the foot have only one brake pedal, so as to solve the phenomenon of mistakenly treading the accelerator caused in the prior automobile with the brake and the accelerator treaded by one foot, and improve driving safety. The manual control accelerator technique is suitable for manual shift and automatic shift; and for a left rudder vehicle and a right rudder vehicle as well as single or hybrid energy vehicles.
Owner:王佑夫

Writing behavior characteristic authentication method based on wrist wearing electronic equipment

The invention discloses a writing behavior characteristic authentication method based on wrist wearing electronic equipment. The writing behavior of a user is analyzed, the characteristics of writing are extracted and the characteristics with obvious distinction degree are found according to accelerated speed data and angular speed data obtained by an accelerograph and a gyroscope, and a single classifier is utilized for carrying out classification judgment. Besides, dynamic time series distance (DTW) between training data is calculated, and the dynamic time series distance is contrasted with an input sample, and the two judgments are synthesized, so that that whether the user is legal or not is determined. According to the method disclosed by the invention, the collection for behavior data is extremely convenient, and the collection for behavior data can be completed after writing when the user wears equipment such as a smart bracelet or a smart watch; and moreover, the stability of an authorization model can be guaranteed by adopting two different methods for modeling and authorization respectively, the writing behavior of the user can be preferably reflected, and the robustness and fault tolerance of identity authentication are obviously improved; and the authentication method is difficult to attack through an attack test.
Owner:RES INST OF XIAN JIAOTONG UNIV & SUZHOU

On-line recognition device and method of diesel engine power performance

The invention discloses an on-line recognition device and method of diesel engine power performance. The on-line recognition device comprises a vehicle speed sensor, an engine speed sensor, a diesel engine accelerograph rack position sensor, an ECU and an alarm device. The vehicle speed sensor, the engine speed sensor and the diesel engine accelerograph rack position sensor are connected with the ECU respectively. The circumstance revising Map and the standard torque Map are stored in the ECU. The ECU compares the revised torque with the standard torque Map, and if revised torque does not meet the requirement of the standard torque Map, the alarm device is notified to conduct alarm prompt. The on-line recognition device is simple in structure, the vehicle driving force is worked out by collecting the revolving speed, the accelerograph position and the speed of a vehicle, the diesel engine output torque is further obtained, the diesel engine power performance can be recognized in a quantitative mode through the comparison with the standard torque in the ECU, the diesel engine output torque can be measured directly under the condition of vehicle loading, the diesel engine state can be monitored, and reliability of diesel engine operation is improved.
Owner:CHINA NORTH ENGINE INST TIANJIN

Emergency braking device anti-misstep device

InactiveCN101104382AImprove the level of automation technologyImprove securityElectrical controlBraking action transmissionAutomatic controlSolenoid valve
Disclosed is a mis-tread preventing device for emergency stop, belong to autocontrol technical field. The input port of a signal processor is connected to the output port of pressure difference electrical signal of a controllable magnet valve; the output port of the signal processor is connected to the input port of a controller; the two output ports of the controller are connected to the control pole of two electronic switches; the anode and the cathode of the first electronic switch are connected in series in a DC power supply loop for the controllable magnet valve; the controllable magnet valve is disposed at the upper range of the foot pedal accelerograph in a gasoline pipe of the automobile. Gasoline supplied to the automobile first goes through the controllable magnet valve, then passes the foot pedal accelerograph and at last goes to the cylinder of the engine. The anode and the cathode of the second electronic switch are connected in series in a DC power supply loop for an electricity powered handspike; the top of the electricity powered handspike is mechanically connected to the force arm at the lower part of the pedal rod of an arrester in a mode that the handspike and the arrester can rotate in a plane within 90 degree. The invention can prevent accidents and safeguard the safety of people as well as transportation vehicles.
Owner:SHANGHAI JIAO TONG UNIV

Automatic voltage stabilization control and protection method, device and system for vehicle-mounted generator

The invention provides an automatic voltage stabilization control and protection method, device and system for a vehicle-mounted generator. Comparative reference voltage of a voltage sensor is obtained; and according to direct current voltage output by the voltage sensor, the direct current voltage output by the voltage sensor is stabilized at the comparative reference voltage. According to the automatic voltage stabilization control and protection system for the vehicle-mounted generator, the automatic voltage stabilization value is accurate, the voltage stabilization time is short, output voltage of the vehicle-mounted generator can be monitored automatically, and thus a vehicle engine is made to operate in an idling mode and meanwhile the output of the generator to a load is cut off. The output voltage of the vehicle-mounted generator is controlled by changing the rotating speed of the vehicle engine, the voltage sensor is used for controlling the rotating speed of the vehicle engine, and therefore the output voltage of the vehicle-mounted generator is automatically controlled to be at rated voltage and super-undervoltage automatic protection is achieved. Both analog signals and digital accelerograph control signals can be output, nearly all chassis of vehicles with electronic fuel injection engines are covered, operation is simple, and usage is convenient and reliable.
Owner:靳超

Shifting fork control method during DCT (Dual Clutch Transmission) speed changer downshift process

ActiveCN108223784ASolve problems such as poor quality or even failure of pickingOvercoming the problem of over-blockingRoad transportGearing controlHydraulic cylinderEngineering
The invention discloses a shifting fork control method during a DCT (Dual Clutch Transmission) speed changer downshift process. The shifting fork control method during the DCT speed changer downshiftprocess comprises the steps: (1) after a TCU receives signals from the accelerograph opening, the vehicle acceleration and the vehicle speed, the TCU sends a downshift command signal to a hydraulic system, the hydraulic system loads oil pressure on a hydraulic cylinder on the downshift starting side, and a shifting fork moves from the downshift starting side to a neutral position under the actionof the oil pressure; (2) when the shifting fork moves to an optimal oil pressure unloading position, the TCU sends a command signal, so that the hydraulic cylinder on the downshift starting side unloads the oil pressure; and (3) the shifting fork moves to the neutral position under the action of inertia so as to accomplish downshift operation. According to the shifting fork control method during the DCT speed changer downshift process provided by the invention, during the downshift process, the inertia displacement of the shifting fork is compensated through unloading the oil pressure at an advanced position, so that the problems that the downshift quality is poor and even the downshift operation is failed since the shifting fork cannot accurately move to the neutral position through shifting fork inertia during the downshift process are solved.
Owner:JILIN UNIV

Ignition system and ignition control method of motorcycle

The invention provides an ignition system of a motorcycle. The ignition system of the motorcycle comprises an accelerator cable, a magnet, a magnetic switch, a rotating speed sensor, and a digital igniter, wherein the accelerator cable synchronously rotates along with a carburetor; the magnet synchronously rotates along with the accelerator cable; the magnetic switch is closed and a closing signal is closed when the accelerograph opening is smaller than critical accelerograph opening, and the magnetic switch is cut off when the accelerograph opening is not smaller than the critical accelerograph opening; the rotating speed sensor is used for detecting the rotating speed of an engine and transmitting a rotating speed signal; the digital igniter is used for calculating the rotating speed acceleration, controlling an advance angle of ignition according to an economy cruise curve if the closing signal is received, and controlling the advance angle of ignition according to a power cruise curve if the closing signal is not received when the rotating speed acceleration is smaller than the preset acceleration; the digital igniter is used for controlling the advance angle of ignition according to an economy acceleration curve if the closing signal is received, and controlling the advance angle of ignition according to a power acceleration curve if the closing signal is not received when the rotating speed acceleration is not smaller than the preset acceleration. The dynamic performance and the economic performance of the motorcycle are improved by the ignition system. The invention also provides an ignition control method of the motorcycle.
Owner:LONCIN MOTOR

Fuel auxiliary system of electric sedan

The invention discloses a fuel auxiliary system of an electric car in the field of cars, which includes an internal combustion engine; the shaft end of the internal combustion engine is respectively connected with an air conditioning compressor, a generator and a directional-assistance oil pump in a transmission way by a magnetclutch. The generator charges a storage cell of 12V; the device also includes a power cell set supplying power for a main controller; an accelerograph signal from an accelerograph control mechanism and a rotating speed feedback signal from a drive motor are transferred to the main controller which outputs the signal to the drive motor after carrying out comparison operation to the signals so as to drive wheels to rotate; the power cell set is also provided with a route of output to supply power to a brake system after being depressurized by an inverter; the brake force of the brake system is controlled by a brake control signal from a brake pedal. When working, the internal combustion engine can complement electricity energy to the storage cell of 12V and can be used for assisting the work of a steering and air conditioning system; the internal combustion engine runs excellently and pollution to the environment is less; the device can be used for manufacturing cars which are more environment friendly and energy protective.
Owner:YANGZHOU JINFEICHI ELECTRIC VEHICLE

Oil and electricity dual-purpose motorcycle control system

The invention relates to a motorcycle control system for dual function of oil and electricity. The motorcycle control system comprises a carburetor-type engineer and a motor; a carburetor is provided with a throttle valve; and the throttle valve is connected with an accelerograph handle by an accelerograph pull wire. The motorcycle control system is characterized in that the middle section of the accelerograph pull wire is connected with a nonmagnetic block; the nonmagnetic block is provided with an electromagnet which corresponds to a Hall element; and the Hall element is connected with a motor controller by a data wire. In the proposal, the middle section of the accelerograph pull wire is artificially provided with a magnetic field; the change of the magnetic field is used as a detected information carrier; the carrier is induced by the Hall element and is converted into the needed electrical energy; and the electrical energy is transferred to the motor controller so as to achieve the aim of controlling the rotational speed of the motor. In addition, the accelerograph pull wire can also directly control the opening degree of the throttle valve so as to really realize the control system for dual function of oil and electricity; and the motorcycle control system has a simple structure, convenient mounting and small size.
Owner:童国斌

Seismic source rapid determination method and system based on single rectangular model

The invention provides a seismic source rapid determination method and system based on a single rectangular model, seismic data and high-frequency GNSS data are combined to realize rapid determination of a seismic source, and the method comprises the following steps: a strong seismograph and a seismograph collect original motion information of a seismic station, a GNSS receiver collects basic navigation positioning information of a GNSS observation station, and the basic navigation positioning information is sent to a ground computing center; the ground computing center constructs a seismic station characteristic function time sequence, judges whether the seismic station is triggered by an earthquake or not, and accurately picks up the initial movement moment of the seismic station according to the seismic station characteristic function time sequence when the earthquake occurs; the ground computing center determines the epicenter position, and generates GNSS observation station motion information according to the basic navigation positioning information of the GNSS observation station; and the ground computing center estimates the point source magnitude, estimates the initial fault size of the single rectangular model according to the point source magnitude, inverts the parameters of the single rectangular model, and sends earthquake early warning information to an earthquake early warning center.
Owner:WUHAN UNIV

Ignition system and ignition control method of motorcycle

The invention provides an ignition system of a motorcycle. The ignition system of the motorcycle comprises an accelerator cable, a magnet, a magnetic switch, a rotating speed sensor, and a digital igniter, wherein the accelerator cable synchronously rotates along with a carburetor; the magnet synchronously rotates along with the accelerator cable; the magnetic switch is closed and a closing signal is closed when the accelerograph opening is smaller than critical accelerograph opening, and the magnetic switch is cut off when the accelerograph opening is not smaller than the critical accelerograph opening; the rotating speed sensor is used for detecting the rotating speed of an engine and transmitting a rotating speed signal; the digital igniter is used for calculating the rotating speed acceleration, controlling an advance angle of ignition according to an economy cruise curve if the closing signal is received, and controlling the advance angle of ignition according to a power cruise curve if the closing signal is not received when the rotating speed acceleration is smaller than the preset acceleration; the digital igniter is used for controlling the advance angle of ignition according to an economy acceleration curve if the closing signal is received, and controlling the advance angle of ignition according to a power acceleration curve if the closing signal is not received when the rotating speed acceleration is not smaller than the preset acceleration. The dynamic performance and the economic performance of the motorcycle are improved by the ignition system. The invention also provides an ignition control method of the motorcycle.
Owner:LONCIN MOTOR
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