94results about How to "Avoid response delays" patented technology

An object of the present invention is to provide a damping force adjustable hydraulic shock absorber, in which response delay of a pressure control valve and self-excited vibration of a valve body can be prevented. A damping force is generated by controlling an oil flow between an annular oil passage 21 and a reservoir 4 generated by a sliding movement of a piston in a cylinder with use of a back-pressure type main valve 27 and a pressure control valve 28. The damping force is directly generated by the pressure control valve 28, and a valve-opening pressure of the main valve 27 is adjusted by adjusting an inner pressure of a back-pressure chamber 53. In the pressure control valve 28, a valve spring 57 is disposed between a valve body 56 and a plunger 34. A mass of the valve body 56 is sufficiently less than that of a plunger 34, and a spring stiffness of the valve spring 57 is higher than that of a plunger spring 36. As a result, it is possible to improve the responsiveness of the valve body 56 to prevent response delay in a damping force control. In addition, since the natural frequency of the valve body 56 is high, it is possible to prevent self-excited vibration of the valve body 56.

The invention relates to a damping force adjustment type buffer, capable of preventing the response delay of a pressure control valve and the self-excited vibration of the valve. The buffer controls the flow of the oil liquor between a ring oil line (21) and an oil storage chamber (4) generated by the slide of an inner piston of a hydraulic cylinder by a back pressure main valve (27) and a pressure control valve (28) to generate damping force. The direct damping force is generated by the pressure control valve (28) and the inner pressure of a back pressure chamber (53) is adjusted to control the valve opening pressure of the main valve 927). A valve spring (57) is mounted between a valve (56) and a plunger (34) in the pressure control valve (28) and the weight of the valve (56) is fully less than the weight of the plunger (34) and the spring rigid of the valve spring (57) is higher than the spring rigid of the plunger spring (36). Thus the response of the valve (56) is increased and the response delay of the damping force control is prevented. In addition, the natural frequency of the valve (56) is increased therefore the generation of the self-excited vibration is prevented.

A device and method that suppresses delay in response to gear-shifting in upshifting during control for preventing over-rotation. An engine torque control part controls the torque of the engine based on a driver request (APO) for driving force, a rotation velocity sensor detects the rotation velocity of the engine, and an over-rotation preventing part suppresses the controlled torque based on thevelocity and prevents over-rotation of the engine. An over-rotation prevention releasing part releases suppression of the torque based on the rotation velocity lowered due to upshifting of the automatic transmission, and an engine torque increasing rate regulating part regulates the increasing rate of the torque when said suppression of the torque is released and the torque is increased. Thus, a sudden increase in engine torque is avoided.

A shift control apparatus for an automated twin clutch transmission includes a shifting movement detecting device operable to detect start of shifting movement of a shift instructing device and output a shift starting instruction, and a shift controller configured to perform, in response to the shift starting instruction, a pre-shift control by releasing one of the first and second engine clutches from a power transmission route of a pre-shift gear ratio and engaging one of the shift clutches corresponding to a post-shift gear ratio, and perform, in response to a shift instruction form a shift instruction outputting device, a gearshift by releasing the other of the first and second engine clutches from the power transmission route of the pre-shift gear ratio and engaging the above-mentioned one of the first and second engine clutches. A shift control method is also provided.

A control apparatus for an internal combustion engine is provided. The control apparatus includes an ECU. The ECU is configured to change, in a stepped manner, an air-fuel ratio of the internal combustion engine so as to change over a combustion mode of the internal combustion engine between lean combustion and stoichiometric combustion, when an operating point of the internal combustion engine satisfies a first changeover condition that is defined by a rotational speed and a torque of the internal combustion engine. The first changeover condition is defined by the rotational speed and the torque that correspond to a predetermined intake air amount at which a thermal efficiency of the internal combustion engine is maintained before and after changeover of the combustion mode.

An index renewing system includes an temporary accumulation area (112) for storing registration target data and an identifier for the data, and an index storage area (110) for storing an index, wherein an operation unit (102) of the index renewing system stores received registration target data and the identifier for the data into the temporary accumulation area (112), creates an index entry by extracting a data item matching any of predetermined data items from the registration target data stored in the temporary accumulation data, and creating index information (index data) containing the identifier corresponding to the index entry, and stores the created index entry and the corresponding index information as an index into an index storage area (110) on an index entry by index entry basis.

The invention is a movable monitoring system for a wireless broadcast television and a satellite television, which comprises a horizontal polarization monitoring direction finding antenna array, an electrically screwed switch unit, an amplifier, a monitoring and direction finding selector, an all digital monitoring / direction finding receiver, a digital analyzing and processing unit, an industrial control computer, GPS, an industrial control computer, an electrical compass, an industrial control computer , an audio-video switching matrix, an all digital monitoring, direction finding and controlling unit, an east orientation display, a vehicle-borne satellite antenna, a satellite receiver, RF L-BAND, a DVStation monitor, a spectroanalyzer, a fault interference tester, a collecting and encoding workstation, an integrated display system, a network switch and the like. The monitoring system has the advantages of reliable, stable, simple, practical and flexible system with quick response, wide monitoring range , complete monitoring projects, various monitoring means, complete monitoring functions and high cost performance, thereby realizing the complete monitoring in an audio-video frequency layer, a radio frequency physical layer, and a bit rate layer.

The invention relates to a database service switching method and a device, a readable storage medium and computer equipment, and the method comprises the steps: obtaining the priority data of a slavedatabase in a database cluster when a master database of the database cluster cannot provide a service; and obtaining the slave database with the highest priority according to the priority data, taking the slave database with the highest priority as a new master database, and switching the master database of the database cluster into the new master database. And when the data corresponding to theupper-layer business is deployed in multiple sets of database clusters and the main databases of the multiple sets of database clusters cannot provide services, the switching sequence of the databasesis controlled through the priority data, so that the multiple sets of database clusters can be switched to the same slave database. Therefore, striped access of upper-layer services is realized, thatis, the upper-layer services are accessed in the same database, and a delay effect caused by cross-database access is avoided.

The invention relates to an active current extraction method based on orthogonal sine wave integral modulation. The method comprises the following steps: 1) a standard sine wave reference current is generated; 2) the integral modulation of the total power is performed; 3) the modulation power is obtained; and 4) the method for obtaining the active current can be realized by a computer or a hardware circuit and is as follows: the extraction method of active current signal or data is adopted, and the signals of the total current i and voltage u which are input in a load are utilized to obtain the active current signals ip through an algorithm below. The idle current and generalized idle current detected by the method of the invention do not contains any active component, the method does not contain filtering link; when the voltage is non-sine wave, phase-lock loop is not required and single-phase detection is performed directly and not influenced by the imbalance of the three phases in a circuit; and the detection result is not influenced by voltage harmonic and destortion, and the method is suitable for the real-time detection of current.

A level shifter includes: a first buffer amplifier transferring a preset reference voltage to a first output terminal; a second buffer amplifier connected in parallel to the first buffer amplifier and transferring an input voltage to a second output terminal; a positive feedback amplifier connected in parallel to the first buffer amplifier and the second buffer amplifier, and amplifying the input voltage by a preset gain to transfer the amplified input voltage to a third output terminal; and a level regulation unit regulating levels of output signals of the first buffer amplifier, the second buffer amplifier, and the positive feedback amplifier and providing the regulated output signals to a common output node.

The invention discloses an engine cooling method, a device and a computer readable storage medium and belongs to the technical field of vehicle engineering. The method comprises the following steps: detecting the temperature of an engine after detecting that the engine of a vehicle is started; when the temperature of the engine is greater than or equal to a first preset temperature, determining atarget angle based on the temperature of the engine, wherein the target angle is a rotating angle of a valve of a ball valve thermostat in a cooling circulating pipeline of the engine; and controllingthe valve of the ball valve thermostat to rotate to the target angle, wherein a cooling liquid in a water pump of the vehicle circulates in the cooling circulating pipeline, so that the engine is cooled. According to the invention, the valve of the ball valve thermostat is controlled to rotate at the target angle, so that the cooling liquid circulates in the cooling circulating pipeline. As the rotating angle of the valve of the ball valve thermostat can be controlled, so that the flow of the cooling liquid in the cooling circulating pipeline is controlled accurately, and the engine cooling effect is achieved.

In a mobile body, an intermittent operation to temporarily halt a cell operation is performed at a time when a request for power generation with respect to a fuel cell stack is less than a predetermined value, and recovery processing of a cell voltage is performed at a time when a cell voltage recovery processing executing condition is satisfied during the intermittent operation. When the mobile body is moving, a threshold voltage Vth1 is set as the cell voltage recovery processing executing condition. When the mobile body is stopped, a threshold voltage Vth2 is set as the cell voltage recovery processing executing condition. When the voltages are set so as to obtain a relation Vth1>Vth2, the cell voltage recovery processing can be limited during the stop of the mobile body.

A rear-wheel drive device (1) provided with: electric motors (2A and 2B) that generate the force that drives a vehicle; hydraulic brakes (60A and 60B) that are provided on a power-transmission path between the electric motors (2A and 2B) and rear wheels (Wr), and by engaging or disengaging, connect or disconnect the motors to or from the wheels; an ECU (45) that controls the electric motors (2A and 2B) and the hydraulic brakes (60A and 60B); and a one-way clutch (50) that is provided on the power-transmission path between the electric motors (2A and 2B) and the wheels (Wr), in parallel with the hydraulic brakes (60A and 60B), and engages when forward rotation from the electric motors is inputted to the wheels, disengages when reverse rotation from the electric motors is inputted to the wheels, disengages when forward rotation from the wheels is inputted to the electric motors, and engages when reverse rotation from the wheels is inputted to the electric motors. When forward rotation from the electric motors is inputted to the wheels, the ECU (45) engages the hydraulic brakes (60A and 60B) so that the electric motors are connected to the wheels.

The invention provides a DHCP service processing method and device. The method comprises the following steps of: obtaining a MAC address of a client side in a DHCP request after receiving the DHCP request of the client side; inquiring whether the MAC address exists or not; and if not, creating a new thread for processing the DHCP request in a multi-thread process. Due to application of the embodiment of the invention, for the DHCP request sent by the client side, a DHCP server is only necessary to create a thread to process in multiple threads by utilizing a multi-thread technology; therefore, the DHCP server can process the DHCP request of the client side in multiple different network segments only by starting one multi-thread process; therefore, the performance of the DHCP server can be improved; and the response time of the DHCP server is reduced.

A hydraulic control unit is provided. A valve is comprised of a piston having a valve element, a cylinder holding the piston while allowing to reciprocate axially, a positive pressure chamber formed on one side of the piston to which pressure to open the valve is applied, a back pressure chamber formed on the other side of the piston to which the pressure to close the valve is applied, and a connection passage for differentiating pressures in the positive pressure chamber and the back pressure chamber. A pilot valve selectively connects the back pressure chamber with a site where the pressure is lower than that of the back pressure chamber. Hydraulic pressure lower than that applied to positive pressure chamber is applied to a low pressure section. The hydraulic control unit comprises a means to deliver the fluid from the low pressure section to the back pressure chamber if an opening motion of the valve is slower than a predetermined reference value, by opening the pilot valve to connect the back pressure chamber with the low pressure section.

An ECU executes a program including the steps of: when there is a downshift instruction of an automatic transmission (YES in S100) and a vehicle is in a driven state (YES in S102), outputting (S104) to a supply pump a control signal corresponding to a common rail instruction pressure; and when a predetermined time has elapsed from the downshift instruction (YES in S106), executing (S108) fuel injection control.

The electric brake device includes a brake rotor, a brake pad, an electric motor (2), a linear motion mechanism, and a controller (9). The controller (9) includes: a motor angular velocity control section (40) to control an angular velocity of the electric motor (2); and a motor angular velocity limiting section (41) to limit the angular velocity of the electric motor through the motor angular velocity control section (40) such that an angular velocity ωb of the electric motor (2) in a no-load state and an angular velocity ωr of the electric motor (2) in a no-load state satisfy |ωb|>|ωr| in which the angular velocity ωb is controlled by the motor angular velocity control section (40) when a state shifts from a non-braking state to a braking state, and the angular velocity ωr is controlled by the motor angular velocity control section (40) when the state shifts from the braking state to the non-braking state.

The invention relates to an automatic driving vehicle testing method and device, a controller and a medium. The method comprises: acquiring the longitudinal distance between an automatic driving vehicle to be tested and a cooperative testing vehicle and the speed of the cooperative testing vehicle; determining a target acceleration of the collaborative test vehicle based on the longitudinal distance, the vehicle speed of the collaborative test vehicle and a preset expected speed and an expected longitudinal distance of the collaborative test vehicle; and adjusting the running state of the collaborative test vehicle according to the target acceleration. According to the invention, a test scene is provided for accurate data test of the automatic driving vehicle, the accuracy of a test resultis improved, and the test cost is reduced.

A throttle control device having a quick response and a control stability in the ISC running mode of an internal combustion engine comprises: feedback control means for outputting an amount of activation for activating a drive motor by using a predetermined control gain such that the real opening of a throttle valve detected by a throttle opening sensor for detecting the real opening of the throttle valve may be equalized to either a desired opening based on at least the depression of the accelerator pedal or a desired opening at the ISC time based on at least the speed of the internal combustion engine; and correction coefficient adjusting means for correcting the activation amount outputted from the feedback control means, with a predetermined correction coefficient on the basis of the decision result of a throttle operation mode deciding means for deciding the operation mode of the throttle valve.

A driving device includes a power source that converts input power to output power, first and second capacitors connected to an output of the power source, a load selector, and a capacitor selector. The load selector opens / closes circuits of first and second loads connected to the output of the power source to alternately close these circuits such that the second-load circuit is closed after the opening of the first-load circuit. The capacitor selector opens / closes circuits of the first and second capacitors to alternately close these circuits such that the first-capacitor circuit is closed in synchronization with the closing of the first-load circuit, and such that the second-capacitor circuit is closed in synchronization with the closing of the second-load circuit. The capacitor selector opens the first-capacitor circuit after the opening of the first-load circuit.

The invention provides a control method of an external control type fan clutch able to improve engine performance, fuel cost and cooling performance of a capacitor of an air conditioner (A / C) and restrain fan noises due to associative rotation. Namely, in the external control type fan clutch device constructed so as to control the opening and closing of a supply adjusting hole of oil by a valve member operated by an electromagnet, the opening and closing of the supply adjusting hole of the oil is on-off-controlled with the temperature of a cooling liquid of a radiator, a fan rotating speed, the temperature of transmission oil, a vehicle speed, an engine rotating speed, the pressure of a compressor of the air conditioner, etc. as parameters.

Provided is an output buffer circuit capable of reducing output noise, and increasing a response speed. In a case where an output voltage changes from a ground voltage to an inversion voltage of NOR, and a case where the output voltage changes from a power supply voltage to an inversion voltage of NAND, both of two MOS transistors control the output voltage, and hence, a slew rate of the output voltage becomes steep. Thus, a response speed of the output buffer circuit becomes high. Further, in such a case where the output voltage changes in the vicinity of a voltage (VDD / 2) other than the above-mentioned cases, only one MOS transistor controls the output voltage, and hence, the slew rate of the output voltage becomes gentle. Thus, a response speed of the output buffer circuit becomes low, which reduces output noise.

The invention provides an interactive processing method and device in a virtual scene, electronic equipment and a computer readable storage medium. The method comprises the steps of presenting a virtual scene; in response to a material selection operation, determining a to-be-placed target material in the virtual scene; according to a detection mode associated with the type of the target material,detecting a target position meeting a placement rule when the target material is placed in the virtual scene; and in response to a placement operation for the target material, presenting the target material at the target position in the virtual scene. According to the invention, the performance consumption of material interaction in the virtual scene can be saved, and the real-time performance ofmaterial interaction can be realized.

The invention discloses an intelligent data analysis method which comprises the following steps: setting database configuration information, and establishing a data interface according to the databaseconfiguration information; acquiring original data through a data interface; performing modeling processing on the original data to generate a standard data table; newly establishing a visual programcomponent, and performing data analysis on the standard data table through the visual program component to generate a data chart; carrying out layout processing on the data chart to generate a display chart; and publishing presentation charts. Correspondingly, the invention further discloses an intelligent data analysis system. By adopting the method, the data analysis process is simplified, thedata analysis speed is increased, and the analysis result is published in real time.

A scanning exposure apparatus includes a surface position adjuster for adjusting the surface position of an object with respect to an image plane of a projection optical system, on the basis of a detection by the surface position detector in the projection, a controller for controlling a moving system and the surface position detector to perform a pre-scan measurement of the surface position of the object, prior to the projection, so as to detect an error, related to the detection through the surface position detector, with respect to each of detection points, which error is attributable to a difference in pattern structure at the detection points in the region, the detected error being used for correcting the adjustment by the surface position adjuster in the projection, and an initializing device for initializing the surface position detector in synchronism with the scan motion and the projection, at the position where the surface position detector has started the detection in the pre-scan measurement.