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757results about How to "Smooth shifting" patented technology

Vehicle operation assisting system

A vehicle operation assisting system includes an assist yaw rate calculator which calculates an assist yaw rate necessary to avoid an obstacle based on a detection result of the obstacle by a radar device, an actual vehicle moving amount calculator which calculates an actual vehicle moving amount from a yaw rate and a lateral acceleration of a vehicle. When an avoiding operation detector determines an avoiding operation of a driver, a target vehicle moving amount setting device replaces a standard moving amount based on an avoiding operation of a driver with the assist yaw rate, and a vehicle movement controller controls lateral movement of the vehicle so that the actual vehicle moving amount agrees with the assist yaw rate. At this time, in addition to the yaw rate, the lateral acceleration is also used for calculating the actual vehicle moving amount, and therefore an upset of the vehicle behavior can be avoided by properly controlling the lateral movement of the vehicle on a road having a low friction coefficient on which the tires easily skid. A vehicle operation assisting system capable of properly performing an obstacle avoiding operation and a restoring operation even on a road having a low friction coefficient is thereby provided.
Owner:HONDA MOTOR CO LTD

Power transmitting apparatus for vehicle

A power transmitting apparatus for a vehicle includes: an electric supplementary drive unit; a torque converting device including a planetary gear set having a first rotation element connected to the electric supplementary drive unit, a second rotation element connected to an engine, and a third rotation element operated as an output element; an input device including a first input shaft connected to the third rotation element through one clutch and provided with an input gear thereon, and a second input shaft coaxial with the first input shaft without rotational interference, connected to the second rotation element through the other clutch, and provided with an input gear thereon; a direct coupling device selectively connecting two rotation elements among the first, second, and third rotation elements of the torque converting device so as to cause the torque converting device to become a direct-coupling state; and a speed output device.
Owner:HYUNDAI MOTOR CO LTD

Long-distance control wellhead operation device for workover operation

InactiveCN102191923AHigh level of mechanization and automationIncrease mechanization and automationDrilling rodsDrilling casingsWellheadManipulator
The invention relates to a long-distance control wellhead operation device for workover operation. The long-distance control wellhead operation device mainly solves the problems that the labor intensity of workers is high, the safety is poor and the operation efficiency is low as the wellhead operation can not be mechanized and automated during the traditional workover operation. The long-distance control wellhead operation device is characterized in that a centering manipulator is arranged at the upper end of an operation appliance; a pair of hydraulic pliers is arranged inside a framework of the operation appliance; a buffering and locating block is arranged at the front end of the operation appliance; a moving mechanism is arranged at the lower end of the operation appliance; the operation appliance is positioned on a base of the operation appliance; the base of the operation appliance can be adjusted in the vertical direction and is used for locating the operation appliance in thevertical direction; a power slip is arranged inside the base of the operation appliance; the slip is connected with a flange at a wellhead; the installation position of the base of the operation appliance is determined by the power slip; and a control cabinet is welded at the side of the framework of the base of the operation appliance and is used for controlling a hydraulic system of the whole device. The long-distance control wellhead operation device has the advantages of increasing the mechanization and automation degree of assembly and disassembly of tubular columns, reducing the labor intensity of workover workers, realizing the unmanned operation of the wellhead and achieving the actual application value.
Owner:NORTHEAST GASOLINEEUM UNIV

Four-driven strong-hybrid automobile AMT (automated mechanical transmission) coordinated control method and system thereof

The invention discloses a four-driven strong-hybrid automobile AMT (automated mechanical transmission) coordinated control method and a system thereof, belonging to the field of hybrid automobile control. Driving information is acquired by a whole automobile controller which is also responsible for managing and distributing the torque needed by the whole automobile. The method comprises the following steps of: determining the whole automobile driving mode, and selecting the whole automobile driving mode adaptive to the driving information; sending instruction information to an AMT controller according to the whole automobile driving mode, and executing the instruction control of the whole automobile controller by the AMT controller; and carrying out coordinated control on all driving motor controllers by the whole automobile controller according to the execution condition of the AMT controller so as to meet the requirement for smooth shifting of a driver for driving. In the AMT coordinated control method, by coordinated control of the whole automobile controller to the AMT controller, the shifting smoothness of an AMT is effectively improved, so that the shifting becomes faster and more comfortable; and simultaneously a rear-driven pure-electric driving mode is utilized for preventing an AMT system from working at the stages of starting and low speed, so that the automobile driving is more economic.
Owner:CHERY AUTOMOBILE CO LTD

Screw-nut gear-shifting mechanism for automatic two-gear transmission of electric car

The invention relates to a screw-nut gear-shifting mechanism for an automatic two-gear transmission of an electric car. The mechanism comprises an input shaft, an intermediate shaft and a fork gear-shifting mechanism, wherein the input shaft and the intermediate shaft are parallel to each other; a first-gear driving gear and a second-gear driving gear are fixedly arranged on the input shaft respectively; a second-gear driven gear, a first-gear driven gear, a main reduction driving gear and a synchronizer are sequentially arranged on the intermediate shaft respectively; the first-gear driving gear and the first-gear driven gear are normally engaged, and the second-gear driving gear and the second-gear driven gear are normally engaged; a main reduction driven gear is arranged to be matched with the main reduction driving gear, and during installation for usage, the main reduction driven gear is fixed on a differential mechanism flange plate through bolts; and a fork of the fork gear-shifting mechanism is sleeved with a joint sleeve of the synchronizer. According to the mechanism, a screw and screw-nut mechanism is adopted, so that the accuracy and the reliability of gear shifting are improved; and the mechanism is simple in structure, convenient to install and small in size, has a self-locking function and can prevent gears from loosening.
Owner:HEFEI UNIV OF TECH
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