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692results about How to "Improve ride comfort" patented technology

Auxiliary spring work load checking method of non end part contact type end part strengthened few-leaf main and auxiliary springs

The invention relates to an auxiliary spring work load checking method of a non end part contact type end part strengthened few-leaf main and auxiliary springs belonging to the suspension steel plate spring technical field. According to the method of the invention, firstly, according to the structure size and the elastic modulus of each end part strengthened few-leaf cross-section variable main spring, the end point deformation coefficient Gx-Ei and the half rigidity KMi of each main spring, and the deformation coefficient Gx-BC at the contact point of the Nth main spring and an auxiliary spring on a parabolic segment can be determined; then, according to the half rigidity KMi of each main spring, the thickness h2 of a root straight section, the Gx-BC of the Nth main spring and a main and auxiliary spring interval Delta design value, the auxiliary spring work load of the non end part contact type end part strengthened few-leaf cross-section variable main and auxiliary springs is checked. Through the emulation proof, in adoption of the method of the invention, the accurate and reliable auxiliary spring work load checking value can be obtained; therefore, the design levels and performances of the few-leaf cross-section variable main and auxiliary springs and the smoothness of a vehicle are improved; moreover, the design and test cost is saved; and the product development speed is accelerated.
Owner:SHANDONG AUTOMOBILE SPRING FACTORY ZIBO CO LTD

Control device and method for AMT vehicle sloping route starting

The invention discloses a control device and method for starting of an AMT vehicle on a ramp, which comprises a signal collecting unit, an electronic control unit and an actuating mechanism. The electronic control unit comprises a signal receiving module, a signal analysis and judgment module and a control signal output module, and the actuating mechanism comprises a clutch motor and a throttle motor. The signal collecting unit at least comprises a brake sensor of first level and a brake sensor of second level, the signal analysis and judgment module determines the engaging extent of a clutch and the opening extent of an air control shutter according to the signals collected by the brake sensors of first and second level and received by the signal receiving module, and the control signal output module respectively controls the actions of the clutch motor and the throttle motor according to the engaging extent of the clutch and the opening extent of the air control shutter. The control method for starting of the AMT vehicle on the ramp provided by the invention enables the engaging extent of the clutch and the opening extent of the air control shutter not to be zero when a brake pedal is released, thereby overcoming the starting spark extinction and back sliding of the vehicle caused by factors like friction force, engine torque, etc. during staring of the vehicle on the ramp.
Owner:BYD CO LTD

Design method for few parabolic type variable cross-section main spring end and auxiliary spring gaps

The invention relates to a design method for few parabolic type variable cross-section main spring end and auxiliary spring gaps, and belongs to the technical field of suspension steel plate springs. The method comprises the steps that according to the structural size and elastic modulus of each parabolic type variable cross-section main spring, an end point deformation coefficient of each main spring and a deformation coefficient Gx-CD of the Nth main spring on the contact point of an auxiliary spring and the end straight section; then, according to the auxiliary spring acting load design requirement value and the end point deformation coefficient of each main spring, the endpoint force FN of the Nth main spring is obtained; then, according to the thickness h2 of the straight section at the root of the Nth main spring, the FN and the Gx-CD, the main and auxiliary gaps between the contact points of the auxiliary springs and the end straight sections of the main springs are designed. According to simulation verification, the accurate and reliable main and auxiliary spring gap design values can be obtained by means of the method, the auxiliary spring acting load design requirement is met, and the product design level and performance and the vehicle ride comfort are improved; meanwhile, the product development speed is increased, and the design and testing expenses are lowered.
Owner:慕贝尔汽车部件(太仓)有限公司

Heavy-load type oil-gas spring independent suspension steering drive axle

The invention relates to a heavy-load type oil-gas spring independent suspension steering drive axle which comprises a central main reducing gear assembly, an upper cross arm, a lower cross arm, a hub reducing gear assembly, a double-rzeppa type constant velocity universal transmission shaft, a steering joint seat, an oil-gas spring and a steering rod system, wherein the central main reducing gear assembly is located in the center of the steering drive axle and fixedly connected to a frame, and structures of the heavy-load type oil-gas spring independent suspension steering drive axle at the left end and the right end of the central main reducing gear assembly are the same and symmetrically distributed. The steering joint seat is adopted, thus stress in the front, back, left and right directions of the whole steering drive axle trends to be more uniform and reasonable, the steering drive axle has higher traveling smoothness and better maneuverability, and the regulation of ground clearance can be realized at the same time of regulating the height of the frame. The upper cross arm and the lower cross arm of the heavy-load type oil-gas spring independent suspension steering drive axle are respectively of an integral structure, thereby improving the structural rigidity. Both ends of the upper cross arm and the lower cross arm are respectively connected with the steering joint seat and a main reducing gear shell through pin shafts, and the reasonable optimization of swing arm connection points ensures that the changes of wheel tracks and wheel inclination angles are the minimum when wheels jump up and down to the limit, thereby improving the controllabitity and the stability of a chassis.
Owner:BEIJING INST OF SPACE LAUNCH TECH

System and method for controlling interconnecting state of transversely interconnected air suspension

InactiveCN104442266AImprove ride comfortSolve the contradiction between ride comfort and handling stabilityResilient suspensionsAir suspensionTransmission line
The invention discloses a system and method for controlling the interconnecting state of a transversely interconnected air suspension with the orientation to stability of vehicle body postures. All unsprung mass acceleration sensors transmit acceleration information to a signal pre-processing system, the output of the information pre-processing system is connected with input of an ECU 5, the output of a CAN bus communication system is connected with the input of the information pre-processing system and the input of the ECU 5, the interconnection state control algorithm is integrated in the ECU, the output of the ECU is connected with an interconnection state control driving module, the output of the interconnection state control driving module is connected with an interconnection solenoid valve through a control line, and the output of a steering wheel angle sensor is connected with the input of the ECU through a signal transmission line. The running smoothness of a vehicle on a poor road face is improved by reasonably controlling the interconnection state of the transversely interconnected air suspension, the control stability of the vehicle during high-speed steering is not influenced, and it is possible for the interconnected air suspension to be applied to a small-sized vehicle.
Owner:JIANGSU UNIV

Structure and method for reducing equivalent unsprung weight of wheel-rim electrically-driven system of single trailing arm type suspension

The invention discloses a structure and method for reducing the equivalent unsprung weight of a wheel electrically-driven system of a single trailing arm type suspension, which is characterized in that an elastic rubber hinge is supported on a frame, one end of a swing arm of the single trailing arm type suspension is connected with the elastic rubber hinge, and the other end of the swing arm is connected with a reducer casing; the reducer casing is connected with a sleeve of a half axle; a motor is fixedly arranged on the reducer casing, the power output end of the motor is connected with a small gear, then the small gear is meshed with the large gear, and the large gear is connected with the sleeve of the half axle; and after the gear reducing is performed, the power is outputted to a rim by the half axle so as to drive wheels. The equivalent unsprung weight is reduced by reducing the distance between the mass centre of non-concentric parts of a wheel and a central swing axis of the single trailing arm type suspension. The structure and method disclosed by the invention have the advantages of increasing the vibration frequencies of wheels, reducing the resonance, reducing the impact and vibration from road surfaces, and improving the running smoothness of vehicles.
Owner:TONGJI UNIV

Unequal double-wishbone suspension wheel side driving device capable of achieving large-angle steering

The invention relates to an unequal double-wishbone suspension wheel side driving device capable of achieving large-angle steering and belongs to the field of electric automobiles. The unequal double-wishbone suspension wheel side driving device capable of achieving large-angle steering comprises an unequal double-wishbone suspension, a driving motor, a steering motor, a universal transmission shaft, a worm and gear reducer, a bevel pinion, a transmission bevel gear, a bevel gear wheel, a brake caliper, an axle housing and wheels, wherein the driving motor and the steering motor are both fixedly arranged on an automobile frame; the driving motor drives the wheels to rotate through the universal transmission shaft and gear transmission; the bevel gear wheel simultaneously plays the role of a brake disc; and the steering motor achieves steering of automobiles through the universal transmission shaft and the worm and gear reducer; the transmission bevel gear is sleeved on a master pin in empty mode; and a worm gear is connected with the master pin through a flat key. When automobiles steer, mutually independent operation of a driving system and a steering system can be achieved by reasonably controlling the rotate speed of the driving motor. The unequal double-wishbone suspension wheel side driving device capable of achieving large-angle steering not only achieves large-angle steering, but also reduces the unsprung mass of the automobiles, and improves the flexibility of the automobiles and riding comfort.
Owner:六安合众机械制造有限公司

MacPherson air suspension and assembly method thereof

A MacPherson air suspension comprises a cross stabilizer bar, two strut assemblies arranged on the left side and the right side of the cross stabilizer bar, a left steering knuckle, a right steering knuckle, a left lower suspension arm, a right lower suspension arm and a left-right stabilizer bar connection push rod connecting the cross stabilizer bar and the strut assemblies. Each strut assembly comprises a front shock absorber and an air spring assembly integrated on the front shock absorber, and the front shock absorber is fastened with the lower support of the front shock absorber through bolts. The upper ends of the left steering knuckle and right steering knuckle are respectively connected with the upper portion of the lower support of the front shock absorber through ball pin fittings, the lower portions of the left steering knuckle and right steering knuckle are connected with shaft sleeve connection plates of the steering knuckles through shaft pins and are connected with the lower portion of the lower support of the front shock absorber through the shaft sleeve connection plates, and the left steering knuckle and right steering knuckle respectively form an integrated frame structure with the lower support of the front shock absorber. The central connection line of the ball joints of the ball pin fittings and the shaft sleeves of the shaft sleeve connection plates of the steering knuckles is a main pin axis a. The MacPherson air suspension can meet the requirements of an automobile under various loading conditions, and ideal comfortable ride comfort can be obtained.
Owner:柳州孔辉汽车科技有限公司

Design method for limit deflections of end part contact type less-leaf parabola type main and auxiliary springs

InactiveCN106295086AImprove ride comfortAccurate and reliable limit deflection design valueGeometric CADLeaf springsContact typeDesign methods
The invention relates to a design method for the limit deflections of end part contact type less-leaf parabola type main and auxiliary springs, and belongs to the technical field of suspension steel plate springs. According to the method, the limit deflections of the end part contact type less-leaf parabola type main and auxiliary springs can be designed according to the structural parameters, the elastic modulus, the maximum allowable safe stress and the free length of a limiting block of all leaf springs. A prototype loading transformation test shows that the design method for the limit deflections of the end part contact type less-leaf parabola type main and auxiliary springs is correct, an accurate and reliable limit deflection design value can be obtained, and a reliable technological basis is laid for the design of the end part contact type less-leaf parabola type main and auxiliary springs and the development of CAD software. By the use of the method, the design level, the quality and the performance of a product can be improved, and the vehicle running smoothness can be improved; meanwhile, the cost for product design and test is reduced, and the product development speed is increased.
Owner:SHANDONG UNIV OF TECH

Vehicle door system and vehicle

The invention discloses a vehicle door system and a vehicle. The vehicle door system comprises a vehicle door, a vehicle door lock, a limiting stopper and a control unit, wherein the vehicle door lockis installed at the vehicle door and comprises a vehicle door lock driving unit; the limiting stopper comprises a limiting stopper housing, a limiting stopper bracket and a limiting stopper driving unit; the limiting stopper housing is connected with the vehicle door; the limiting stopper bracket is connected with a vehicle body; the limiting stopper driving unit is used for driving the limitingstopper housing to move relative to the limiting stopper bracket; the control unit is electrically connected with the vehicle door lock driving unit and the limiting stopper driving unit; the controlunit is set for controlling the vehicle door lock driving unit to drive the vehicle door to be unlocked and then controlling the limiting stopper driving unit to drive the limiting stopper housing tomove toward a direction far away from the vehicle body, and/or controlling the limiting stopper driving unit to drive the limiting stopper driving unit to drive the limiting stopper housing to move toward a direction close to the vehicle body and then controlling the vehicle door lock driving unit to drive the vehicle door to be locked. The vehicle door system disclosed by the invention can be used for intelligently controlling the vehicle door so as to meet the use requirements, on the vehicle door, of passengers.
Owner:BAIC MOTOR CORP LTD

Engineering machine balancing rocker arm chassis travelling device

The invention relates to an engineering machine balancing rocker arm chassis travelling device which consists of a frame, an intermediate main shaft, a rocker arm rack, a rocker arm, a set of ground gap adjusting mechanism, a travelling motor and brake device, a balance mechanism, a steering device and wheels, wherein the frame is arranged on the rocker arm rack by the intermediate main shaft andthe balance mechanism; the rocker arm rack is connected with the rocker arm by the set of ground gap adjusting mechanism; and the front end of the rocker arm is connected with the steering device which is connected with the travelling motor and brake device by a bolt and is simultaneously connected with the wheels. After the engineering machine balancing rocker arm chassis travelling device is adopted, a common chassis is guaranteed to have the functions of adjusting the posture, changing the ground gap and carrying out all-wheel hydraulic driving and hydraulic steering on the precondition that the common chassis is ensured to operate at higher movement speed, so that the obstacle climbing capability and the passing performance of a vehicle can be improved. Therefore, the engineering machine balancing rocker arm chassis travelling device has a better practical value and a wide application prospect in the technical field of engineering machinery.
Owner:BEIHANG UNIV

Method for designing optimal damping characteristics of shock absorber of vehicle steel plate spring suspension system

The invention relates to a method for designing optimal damping characteristics of a shock absorber of a vehicle steel plate spring suspension system, and belongs to the technical field of vehicle steel plate spring suspensions. The method is characterized by including the steps of conducting optimization design on the optimal damping ratio required by the suspension system according to parameters of the vehicle suspension system, calculating and analyzing the damping ratio of the steel plate spring suspension system according to displacement and loads measured through steel plate spring loading and unloading deformation tests, and designing the optimal damping characteristics of the shock absorber of the vehicle steel plate spring suspension system on this basis. It can be known from Matlab/simulink simulation verification that the optimal damping characteristic design value of the shock absorber of the steel plate spring suspension system can be designed according to the method, the optimal damping matching can be achieved for the vehicle steel plate spring suspension system, and vehicle driving smoothness is improved; meanwhile, repeated tests and verification can be avoided, the development speed of products can be increased, and design and test expenses can be reduced.
Owner:SHANDONG UNIV OF TECH

Method for designing limiting deflection of few-leaf two-end-reinforced plate springs with ends of non-equal structures

InactiveCN106246778AImprove ride comfortAccurate and reliable limit deflection design valueLeaf springsInformaticsComputer Aided DesignEngineering
The invention relates to a method for designing limiting deflection of few-leaf two-end-reinforced plate springs with ends of non-equal structures, and belongs to the technical field of suspension steel plate springs. The limiting deflection of the few-leaf two-end-reinforced plate springs with the ends of the non-equal structures can be designed by the aid of the method according to structural parameters, elastic modulus and the maximum allowable safety stress of various leaf springs and the free lengths of limiting stoppers. The method has the advantages that as known from sample machine loading deformation experiments and tests, the method for designing the limiting deflection of the few-leaf two-end-reinforced plate springs with the ends of the non-equal structures is correct, accurate and reliable limiting deflection design values can be obtained by the aid of the method, and a reliable technical foundation can be laid for designing the few-leaf two-end-reinforced plate springs with the ends of the non-equal structures and developing CAD (computer-aided design) software; the design level of products can be upgraded by the aid of the method, the quality and the performance of the products and the riding comfort of vehicles can be improved, the design, experiment and test costs of the products can be reduced, and the product development speeds can be increased.
Owner:SHANDONG UNIV OF TECH

Locomotive as well as automatic linkage hooking control method and device

The invention discloses an automatic linkage hooking control method used for a locomotive. The method comprises the following steps of obtaining the initial state of a traction locomotive; when the initial state meets a linkage hooking starting condition, detecting a distance between the traction locomotive and a back trailer; comparing a current distance value with at least two preset distance intervals corresponding to different speed ranges respectively, determining a preset distance interval to which the current distance value belongs, and controlling the traction locomotive to run in the car speed range corresponding to the preset distance interval; when the traction locomotive meets a linkage hooking condition, applying braking to and carrying out linkage hooking operation on the traction locomotive. The invention also discloses an automatic linkage hooking control device used for the locomotive. The invention also discloses the locomotive comprising the automatic linkage hooking control device. By using the automatic linkage hooking control method, linkage hooking operation steps can be simplified; the linkage hooking impact is reduced; the riding comfort of a driver is improved; the operation time wasted due to the failure of linkage hooking is saved.
Owner:ZHUZHOU ELECTRIC LOCOMOTIVE CO

External electromagnetic valve type three-stage damping adjustable hydro-pneumatic suspension for electric control

The invention relates to an oil gas suspension system for a means of transport, in particular to an external electromagnetic valve type three-stage damp adjustable oil gas suspension system for electric control, and belongs to the field of engineering element or part. The oil gas suspension system comprises a piston, a cylinder, an oil pipe, a damping valve, an energy accumulator, an electric control unit and a vehicle body acceleration sensor, wherein the piston divides the cylinder into two cavities which are not communicated; the upper cavity of the cylinder is provided with an oil discharge orifice which is connected with the external damping valve and the energy accumulator through the oil pipe; and the lower cavity is communicated with the atmosphere. When oil fluid passes through the external damping valve, damping force is adjusted through adjusting the total throttling area of the oil fluid in the damping valve or through controlling the valve opening pressure of an oil circuit in the damping valve. The vehicle body acceleration sensor is used for detecting acceleration signals of the vehicle body; and the electric control unit controls the on/off of the electromagnetic valve based on the detected acceleration signals of the vehicle body, thereby realizing adjustment of the damping force. The oil gas suspension system has the advantages of simple structure, easy realization, simple control and convenient repair.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Energy recovery braking system for automobile suspension

The invention discloses an energy recovery braking system for an automobile suspension, which is arranged between the automobile suspension and a pneumatic braking system. The invention adopts the following technical scheme that the system comprises an energy accumulator, an energy recovery cylinder, an energy recovery cylinder II and an energy recovery control module, wherein one end of the energy recovery cylinder is connected with the suspension, the other end of the energy recovery cylinder is connected with the energy accumulator, and the other end of the energy accumulator is connected with an air reservoir of the pneumatic braking system; the cylinder body of the energy recovery cylinder is fixedly arranged on an axle, a piston rod end is arranged on the automobile suspension, and a non-return valve is arranged between the energy recovery cylinder and the energy accumulator; the energy recovery control module is connected with the air reservoir; and the cylinder body of the energy recovery cylinder II is fixedly arranged on the axle, the piston rod end is connected with the automobile suspension through a stroke lever, and a non-return valve is arranged between the energy recovery cylinder II and the energy accumulator. The new design is not only an energy saving design of energy feedback but also provides a certain damping characteristic for the original leaf spring suspension system, thereby being favorable for attenuating the vibration energy and improving the running smoothness of automobiles.
Owner:一汽解放青岛汽车有限公司
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