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1061results about How to "Easy ride" patented technology

Double-motor skidproof differential drive axle of electric automobile

The invention provides a double-motor skidproof differential drive axle used in electric automobiles, which comprises two driving motors, a speed reducer and an output axle which is connected with theThe invention provides a double-motor skidproof differential drive axle used in electric automobiles, which comprises two driving motors, a speed reducer and an output axle which is connected with the speed reducer. The two driving motors are arranged face to face in the middle of the driving axle and connected into a whole through the shell of the speed reducer. The power output by the two drivinspeed reducer. The two driving motors are arranged face to face in the middle of the driving axle and connected into a whole through the shell of the speed reducer. The power output by the two driving motors converges together and flows into the speed reducer; and then the power further drives the left and the right wheels of the electric automobile to rotate through the output axle which is conng motors converges together and flows into the speed reducer; and then the power further drives the left and the right wheels of the electric automobile to rotate through the output axle which is connected with the speed reducer. The driving motors and the speed reducer can be arranged in an engine chamber to achieve compact structure and save space. Simultaneously, in order to solve the problem oected with the speed reducer. The driving motors and the speed reducer can be arranged in an engine chamber to achieve compact structure and save space. Simultaneously, in order to solve the problem of skidding, a skidproof differential device is also arranged in the speed reducer.f skidding, a skidproof differential device is also arranged in the speed reducer.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Method and system for gear shifting control of hybrid car in parallel connection mode

ActiveCN104859638AConflict of controlAvoid Control ConflictsHybrid vehiclesHybrid carElectric machine
The invention discloses a method and system for gear shifting control of a hybrid car in a parallel connection mode. The method comprises the following steps: when the detected car speed meets a gear shifting condition, power sources are controlled to be unloaded; a clutch is controlled to be disengaged; the hybrid gear is controlled to be put into an idle gear; after the idle gear is engaged, the rotating speed of a driving motor is controlled to be adjusted to a target rotating speed; the adjusted actual rotating speed of the driving motor is taken as the target rotating speed, and the rotating speeds of an engine and an ISG motor are adjusted; after the adjustment, the hybrid car is put into a target gear; after the target gear is engaged, the clutch is controlled to be engaged, so that a gear shifting process is finished. The method and system have the advantages that the technical problems that in the prior art, the possibility of power source control conflict is high, so that the engine and the ISG motor are not integrated for control, and the conventional control process is complex can be solved; a gearbox controller is utilized for controlling the torque of the clutch and power sources during the gear shifting process, an active rotating speed adjustment process is added, and the engine and the ISG motor are integrated for control, so that the control during the gear shifting process is simple, the gear shifting time is shortened, and smooth gear shifting is realized.
Owner:BEIQI FOTON MOTOR CO LTD

Public transportation service system and method based on electric automobile

The invention discloses a public transportation service system and method based on an electric automobile. The system comprises a travel demand collecting module, a vehicle dispatching module, a vehicle monitoring and management module, an information service module and an auxiliary decision making module, wherein the travel demand collection module realizes the vehicle appointment, and achieves the goals of completing the online payment of the travel cost of a passenger after the calculation on the travel cost of the passenger and generating a corresponding payment completion two-dimensional code, and the two-dimensional code is used as a vehicle taking evidence; a dispatching management module performs demand overall planning analysis according to appointment information obtained by the travel demand collection module, and configures and completes a route operation time table; the auxiliary decision module realizes the basic data management and operation statistic analysis. The public transportation service system and method based on the electric automobile can achieve the goal of providing the convenient and comfortable travel service for the public; meanwhile, integrated monitoring covering the vehicle operation whole process is realized; the resource intensification is realized.
Owner:SOUTHEAST UNIV

Distributed driving electric automobile torque vector control method based on double-layer control

The invention discloses a distributed driving electric automobile torque vector control method based on double-layer control. The control method comprises the following steps: establishing a vehicle dynamic model, and calculating a tire slip rate by utilizing a Dugoff tire model; establishing a torque distribution controller based on the vehicle dynamic model and the Dugoff tire model, wherein thetorque distribution controller comprises an upper controller and a lower controller; calculating the current drive torque of each driving wheel of the vehicle by the upper controller according to body yawing angular velocity; calculating a compensating torque needed for remaining an ideal slip rate of each driving wheel by the lower controller according to the ideal slip rate of each driving wheel serving as a control objective, and further performing compensation distribution on the driving torque, so that an actual torque is output to the driving wheel, and torque vector control is completed. According to the control method disclosed by the invention, the automobile torque can be effectively subjected to vector distribution, the vehicle driving stability and smoothness are improved, theoperating burden of the driver is obviously decreased, and the driving safety is improved.
Owner:ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Variable-diameter wheel hub

ActiveCN105599536AViscous state changeMeet variable diameter requirementsHigh resiliency wheelsMagnetorheological fluidHigh pressure
The invention relates to a variable-diameter wheel hub which comprises a central control cabinet and a plurality of identical retractable hub blocks. The various retractable hub blocks can be driven by retractable spoke assemblies, so that the diameters of the various retractable hub blocks can be radially varied; each retractable spoke assembly comprises a variable-damping retraction actuating mechanism and an extension auxiliary spring, and each extension auxiliary spring sleeves the outer wall of the corresponding variable-damping retraction actuating mechanism; a body of each variable-damping retraction actuating mechanism is a double-piston cylinder barrel, spaces between floating pistons and end walls of barrel walls are filled with high-pressure nitrogen, and a space between each floating piston and another end wall of the corresponding barrel wall is filled with magnetorheological fluid materials; an electromagnetic coil is buried in each working piston, and a circle of throttle holes are formed in each working piston in a buried manner; one end of each wire is communicated with the corresponding electromagnetic coil, and the other end of each wire is communicated with a storage battery. The variable-diameter wheel hub has the advantages that the diameter of the variable-diameter wheel hub can be varied by the aid of the dead weight of an automobile and centrifugal force generated when a wheel runs, extra driving devices can be omitted, the viscosity of magnetorheological fluid can be controlled by the aid of only low currents, and accordingly the variable-diameter wheel hub is low in energy consumption and fast in response; the riding comfort and the obstacle crossing ability are taken into account, and accordingly the variable-diameter wheel hub and non-inflatable tires can be matched with one another to be applied to conventional vehicles, motorcycles, wheelbarrows and the like.
Owner:WUHAN UNIV OF TECH
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