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30results about How to "Avoid insufficient responsiveness" patented technology

Electric Brake

ActiveUS20090218179A1Secure sufficient braking forceSecure responsivenessAnalogue computers for trafficBraking action transmissionActuatorControl theory
Provided is an electric brake capable of accurately estimating the brake pad temperature and securing a sufficient braking force and response. An electric brake has a disc rotor rotating with a wheel, an actuator for rectilinearly actuating a piston in the axial direction of the disc rotor by using an electric motor, a drive controller for controlling the drive of the actuator, a brake pad pressed by the piston to give a frictional resistance to the disc rotor in the direction of rotation, and a braking start position detector for detecting a braking start position of the piston where the disc rotor is brought into contact with the brake pad. The drive controller stores the braking start position detected by the braking start position detector as the maximum braking start position. When the braking start position shifts in the pressing force-increasing direction, the drive controller updates the value stored as the maximum braking-start position.
Owner:HITACHI LTD

Gas intake and distribution system based on electric hydraulic control mode

The invention provides a gas intake and distribution system based on an electric hydraulic control mode and belongs to the technical field of internal combustion engines. An outlet and an inlet of a high pressure oil pipe are communicated with an oil inlet I and a high pressure oil outlet respectively, an outlet and an inlet of an oil return pipe I are communicated with a valve casing hole and an oil return hole I respectively, an outlet and an inlet of an oil return pipe II are communicated with an inlet of an oil return pipe III and an oil drain duct respectively, an inlet of an engine oil valve oil return pipe II is communicated with an engine oil valve oil return hole II, an inlet of an engine oil valve oil return pipe I is communicated with an engine oil valve oil return hole I, an outlet and an inlet of a low pressure oil pipe are communicated with a low pressure oil inlet and a low pressure oil pipe I respectively, and an inlet of the low pressure oil pipe I and an outlet of the oil return pipe III are arranged in an oil tank; a low pressure oil pipe II is connected with an inlet of an engine oil valve oil intake pipe and a one-way valve II in series, an outlet of the engine oil valve oil intake pipe is communicated with an engine oil valve oil inlet, and a stepping motor, a rotation outer valve cylinder position sensor and a camshaft position sensor are controlled by an electronic control unit. Valve seating impact is small, valve closing moment and lift control is flexible, throttle-valve-free control and a miller cycle can be achieved, reliability is high and manufacturing cost is low.
Owner:JILIN UNIV

Electrophotographic photoreceptor and image forming apparatus provided with the same

An electrophotographic photoreceptor of excellent durability having high sensitivity and light responsiveness, not suffering from lowering of the electric characteristics by exposure to light, change of circumstance, or repetitive use, and excellent in the cleaning property and not suffering from lowering of the picture quality of formed images for a long times, in which an enamine compound represented by the general formula (1), for example, an enamine compound represented by the following structural formula (1-1) is incorporated in a photosensitive layer 14, and the surface energy (γ) on the surface of the photosensitive layer 14 is set to 20.0 mN / m or more and 35.0 mN / m or less, the electrophotographic photoreceptor 1:
Owner:SHARP KK

Engine device

An engine device includes a main throttle valve disposed at a portion where an outlet of a supercharger and an inlet of an intercooler are coupled to each other, an exhaust bypass flow path configured to couple an outlet of an exhaust manifold to an exhaust outlet of the supercharger, an exhaust bypass valve disposed in the exhaust bypass flow path, an air supply bypass flow path configured to bypass a compressor of the supercharger, and an air supply bypass valve disposed in the air supply bypass flow path. Within a low load range of a load on the engine device, when the load is lower than a predetermined load, feedback control is performed on the main throttle valve, and when the load is higher than the predetermined load, map control based on a data table is performed on the main throttle valve.
Owner:YANMAR POWER TECHNOLOGY CO LTD

Dynamic alignment monitoring system for on-vehicle disk brake lathe

A dynamic alignment monitoring system allows an operator to monitor the misalignment of an on-vehicle disk brake lathe with respect to a vehicle axis about which the disk to be machined rotates, and can allow the operator to discontinue further alignment when appropriate in order to speed the overall time of the alignment process. The system processes signals from an angular rate sensor and a tachometer, using a scaling routine to derive a LRO value corresponding to the LRO of the disk which would result from machining in the current alignment condition. A representation of the derived LRO value is displayed to the operator. An operator override can allow the operator to discontinue further alignment adjustments when an acceptable alignment condition is indicated. The system can aid the operator by also presenting a representation of an acceptable LRO value for the particular vehicle being serviced.
Owner:BONITA IP

Device and method for arranging S-shaped rubber band on napkin for incontinents

The invention relates to a device and a method for arranging an S-shaped rubber band on a napkin for incontinents. By the device and the method, a hipline arc-shaped rubber band can be accurately arranged on a napkin for incontinents in a conveying process of a production line of napkins for the incontinents. A servo motor is arranged on a support through a motor mounting plate; a mounting sleeve is fixed on a servo motor shaft through a flat key; the tail of a rubber band arranging head is fixed on a side of the mounting sleeve; a rubber band penetrating hole is formed in the head of the rubber band arranging head; the lower portion of a fixing block is connected with an end surface of the support; a hole is formed in the upper portion of the fixing block; and a star-shaped handle penetrates in the hole and is in screwed connection with a motor mounting plate. The device and the method for arranging the S-shaped rubber band on the napkin for the incontinents have the advantages that direct connection movement is realized by the servo motor, movement requirements on a high-speed machine of napkins for incontinents can be met, and phenomena that the response speed of guide tracks is insufficient and the guide tracks are easy to wear in the prior art are avoided; a servo motor head is directly connected to the arranging head, and the procedure response speed and the accuracy are greatly improved; and the structure is simplified, the time on machining and assembly of parts is greatly saved, and the cost is saved.
Owner:HANGZHOU CREATOR MACHINERY MFG

Hydraulic control device and hydraulic control method for vehicle

The hydraulic control device includes: a mechanical variable-capacity oil pump; and an electronic control unit configured to calculate a target discharge volume of the mechanical variable-capacity oil pump using a plurality of parameters of the transmission, and control the mechanical variable-capacity oil pump based on the target discharge volume.
Owner:TOYOTA JIDOSHA KK

Synchronous real time dynamometer and control system

A synchronous dynamometer assembly for applying a load to an engine during at least one portion of the combustion cycle of the engine in a synchronised manner so as to be repeatable each cycle of the engine comprises a dynamometer having a non-inductive load which is applied to the engine during operation to vary the speed of the engine. The non-inductive load is variable by varying the current delivered to it. Crankshaft monitoring means monitors the rotational position of the engine crankshaft, and combustion detection means detects a combustion event in a cylinder of the engine. Control means is operatively connected to the dynamometer for applying the load from the dynamometer to the engine for at least one part of the combustion cycle in real time such that the different loads may be applied to the engine for different parts of the combustion cycle.
Owner:COMBUSTION ORDER LTD

Inlet and air distribution system based on electro-hydraulic control

The invention provides a gas intake and distribution system based on an electric hydraulic control mode and belongs to the technical field of internal combustion engines. An outlet and an inlet of a high pressure oil pipe are communicated with an oil inlet I and a high pressure oil outlet respectively, an outlet and an inlet of an oil return pipe I are communicated with a valve casing hole and an oil return hole I respectively, an outlet and an inlet of an oil return pipe II are communicated with an inlet of an oil return pipe III and an oil drain duct respectively, an inlet of an engine oil valve oil return pipe II is communicated with an engine oil valve oil return hole II, an inlet of an engine oil valve oil return pipe I is communicated with an engine oil valve oil return hole I, an outlet and an inlet of a low pressure oil pipe are communicated with a low pressure oil inlet and a low pressure oil pipe I respectively, and an inlet of the low pressure oil pipe I and an outlet of the oil return pipe III are arranged in an oil tank; a low pressure oil pipe II is connected with an inlet of an engine oil valve oil intake pipe and a one-way valve II in series, an outlet of the engine oil valve oil intake pipe is communicated with an engine oil valve oil inlet, and a stepping motor, a rotation outer valve cylinder position sensor and a camshaft position sensor are controlled by an electronic control unit. Valve seating impact is small, valve closing moment and lift control is flexible, throttle-valve-free control and a miller cycle can be achieved, reliability is high and manufacturing cost is low.
Owner:JILIN UNIV

Piston cooling apparatus of engine and method for controlling the same

A piston cooling apparatus of an engine and a method for controlling the same are provided. The piston cooling apparatus includes a piston cooling jet that has a first nozzle configured to spray oil towards an inner wall of a cylinder configured such that a piston reciprocates thereon, and a second nozzle configured to spray the oil towards the lower part of the piston. A jet control valve is installed to adjust a hydraulic pressure that is supplied from an oil pump to the piston cooling jet. A controller is configured to operate the jet control valve and adjust the hydraulic pressure discharged from the oil pump.
Owner:HYUNDAI MOTOR CO LTD +1
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