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32results about How to "Reduced ride comfort" patented technology

Radar and video information fusing method applied to advanced emergency brake system

The invention discloses a radar and video information fusing method applied to an advanced emergency brake system. A mode of combining confidence level evaluation and matching is adopted to determine a true barrier target; confidence level evaluation is used for enabling targets obtained through radars and videos to be scientifically and effectively screened out; a matching link is added, and the accuracy of the targets is further determined; for the targets which cannot be matched and are above trust values, early warning is still carried out, and rationality of the targets is reserved; the false alarm is effectively reduced; compared with an existing fusion method, rationality of signals detected by the radars and the videos can be completely, scientifically and effectively reserved, different measures are adopted in signals with different confidence levels, and therefore the performance of the advanced emergency brake system is importantly improved. Rationality of radar and video information is effectively reserved, and therefore real complementation of the radar and video information is achieved.
Owner:ZHENGZHOU YUTONG BUS CO LTD

Driving-and-braking-optimal-switching electric-automobile adaptive cruise control method

The invention discloses a driving-and-braking-optimal-switching electric-automobile adaptive cruise control method. The driving-and-braking-optimal-switching electric-automobile adaptive cruise control method includes the following steps that ideal driving-and-braking torque and the driving-and-braking switching rule are calculated through an upper controller; the ideal driving-and-braking torque is distributed on four wheels through a lower controller. According to the driving-and-braking-optimal-switching electric-automobile adaptive cruise control method, the driving-and-braking-optimal-switching adaptive cruise control strategy is designed and converted into a real-time mixed-integer nonlinear programming proposition through the upper controller according to the current road environment and the driving requirements, the proposition is solved through the double-nesting solving algorithm based on the modified genetic algorithm, and the driving-and-braking switching rule and the corresponding driving / braking controlling torque are obtained. The torque is distributed by the lower controller to hub motors through vertical loads according to the ideal driving-and-braking torque calculated by the upper controller to allow wheels to harmoniously run. The number of actions of a driving actuator and a braking actuator is reduced, and the wheels tend to be in the best working state accordingly.
Owner:DALIAN UNIV OF TECH

Remotely-controllable automobile cooling seat

InactiveCN104108332ASolve the problem of hot car seatsImprove the environment in the carSeat heating/ventillating devicesElectric/fluid circuitHeat sinkSupply energy
The invention discloses a remotely-controllable automobile cooling seat which is composed of an automobile seat body, a refrigeration device, an energy supply device and a control device. A cushion with air holes is arranged on the surface of the automobile seat body. The automobile seat body is internally provided with a ventilation pipeline and a ventilation opening. According to the refrigeration device, the semiconductor refrigeration technology is adopted, a radiation system composed of a bendable heat pipe, a fin-type radiating fin and an axial flow fan is arranged at the hot end of a semiconductor refrigeration chip, and the radiation strength is enhanced. The energy supply device is composed of a solar photovoltaic panel, a battery manager, a storage battery and a driving module, and absorbed solar energy is converted into electric energy to the maximum extent. Meanwhile, a temperature sensor is adopted to conduct real-time temperature sampling, a GSM module is adopted to be communicated with a core processor, and the functions of rapid remote control over the automobile seat temperature and short message reminding through mobile phone short messages are achieved. The remotely-controllable automobile cooling seat is simple in structure, efficient in operation and environmentally friendly and saves energy, the problem that the automobile seat is burning due to parking for a long time when it is hot is solved, and the riding comfort is improved.
Owner:HOHAI UNIV CHANGZHOU

Pneumatic tire

The aim of the invention is to provide an inflating tyre which increases driving stability through maintaining high water drainage capability and increases the silence through restricting the occurrence of noise. Two sides of equatorial line (O1) of the tread (12) are provided with a first main groove (21) and a second main groove (22) which extend along a direction of the circumference of tyre. A plurality of first riffled grooves (25) and second riffled grooves (26) which extend along the direction of the width of tyre are alternately provided on the direction of the circumference of the tyre. One end (25a) of one first riffled groove (25) is communicated with the second main trough (22) at the outmost outer side at the width direction of the tyre, and the other end (25b) is not communicated with a grounding end (13) of the tyre. One end (26a) of one second riffled groove (26) is not communicated with the second main riffled groove (22), and the other end (26b) is communicated with the grounding end (13) of the tyre. A prescribed superposition amount of the ends of the first riffled groove (25) and the second riffled groove (26) in the direction of the width of the tyre is set.
Owner:THE YOKOHAMA RUBBER CO LTD

Method for detecting idle objects in elevator car based on image semantic segmentation

The invention discloses a method for detecting idle objects in an elevator car based on image semantic segmentation. The method comprises the following steps that when a camera in the elevator car is installed for the first time or the angle of the camera at the later stage is adjusted, the floor area of the elevator car is marked through a tool; when an elevator door is completely closed, a picture is grabbed through the camera at the top of the elevator car so as to obtain the floor area of the elevator car; when the door continues to be kept closed, a time interval is set, one-time picture grabbing and analysis are carried out every other period of time, the area of the floor area of the elevator car is continuously measured, and the result is stored; according to the stored multiple measurement results, the floor area of the elevator car, which is obtained by image semantic segmentation, is compared with the floor area calibrated by a maintenance personnel, if the average value of the floor area of the elevator car is larger than a set threshold value, it is indicated that the idle objects exist in the elevator car, and if the average value of the floor area of the elevator car is smaller than the set threshold value, it is indicated that no object exists; and according to the detection result and the door opening and closing situation, the time length of the existence of the objects during the continuous door closing period is obtained.
Owner:ZHEJIANG NEW ZAILING TECH CO LTD

Collaborative optimization method and system for damping nonlinear commercial vehicle suspension dynamics

The invention discloses a damping nonlinear commercial vehicle suspension dynamics collaborative optimization method and system. The method comprises the steps: respectively building a target commercial vehicle vibration model and a suspension assembly nonlinear model; sequentially setting a collaborative optimization target, a collaborative design variable and a collaborative optimization constraint condition; writing and calling a multi-objective algorithm program and associating an optimization objective, a design variable and a constraint condition; driving the target commercial vehicle vibration model to perform simulation calculation to obtain numerical indexes of smoothness and suspension dynamic stroke, and obtaining and comparing multiple groups of feasible solutions meeting constraint conditions; selecting an optimal solution simultaneously meeting smoothness and suspension dynamic travel performance indexes as an optimization result; and completing collaborative optimizationby utilizing an optimization result. According to the method, a more accurate vibration calculation model is established on the basis of the nonlinear relationship of the suspension damping dynamics,the smoothness of the seat guide rail is improved by utilizing a multi-objective optimization strategy, the dynamic stroke of the cab suspension and the chassis suspension is reduced, and the purposeof optimizing the suspension dynamics is achieved.
Owner:GUILIN UNIV OF ELECTRONIC TECH +1

Optimal traction torque online search based locomotive adhesion control method

The invention discloses an optimal traction torque online search based locomotive adhesion control method, comprising the following steps: S1, performing idling detection on locomotive axles, recognizing the axle with idling operation first of a locomotive as a search axle, and the rest axles as receiving axles; S2, obtaining the optimal traction torque, suitable for operating under a current railsurface working condition, of the search axle through an optical traction torque online search algorithm; and S3, quickly responding to changes, caused by an axle weight transfer phenomenon, of adhesion weight to regulate the optimal traction torque of each receiving axle based on the optimal traction torque of the search axle. According to the optimal traction torque online search based locomotive adhesion control method disclosed by the invention, an adhesion control strategy of the whole locomotive is designed, integrity of the locomotive is taken into consideration, and influences, on adhesion weight of each axle, by the axle weight transfer phenomenon of the vehicle body, are analyzed; and the axles are cooperatively matched by virtue of the advantage of independently regulating thetorque by an the axle-control type traction system, so that integral traction force of the locomotive can be effectively improved, and integral traction performance of the locomotive is improved.
Owner:CHENGDU YUNDA TECH CO LTD

Saddle pad of motorcycle

InactiveCN1778619AIncrease the applicable height rangeIncreased minimum storage capacityCycle saddlesCycle containersEngineeringRocker arm
A saddle cushion of motorcycle is arranged on the top of baggage case to define a baggage containing space and is composed of a bottom plate unit with two arc rocker-arms pivoted to its bottom end, and a main body of saddle cushion laying on said bottom plate unit. Its advantages are comfortable riding and large volume of baggage case.
Owner:KYMCO

Elevator control device

InactiveCN102372202APrevents reduction in ride comfort and breakdownsReduced ride comfortElevatorsEngineeringOperating speed
The present invention relates to an elevator control device, thus when a load detected by a sensor is different with the real load, and a motor has no strength or energy to spare, through a driving control of an elevator or vibration is generated, the reduction of riding comfortable degree and elevator faults will be avoided. Preset torque instruction value of load driving when the elevator is assembled is recorded as an initial value, torque instruction value during the driving process of the elevator is also recorded, and the initial value is compared with the torque instruction value of the driving process. When the load is within a certain area comprising the balance load, when the torque instruction value of the driving process is above the initial value, the driving is judged as abnormal, and the loading scope changing the driving speed of the elevator can be changed. Moreover, within the nearby restricted certain scope comprising loading rate of 50%, the driving is judged as abnormal, the changing of the driving speed of the elevator is prohibited within the whole scope of the load.
Owner:HITACHI BUILDING SYST CO LTD +1

Control method of cooling system and vehicle

The invention provides a control method of a cooling system and a vehicle. The control method of the cooling system comprises the steps that S1, the water temperature of an engine is determined; and S2, flow distribution of coolants in a bypass loop, a large circulation loop and an engine oil cooler loop is controlled according to the water temperature of the engine. According to the control method of the cooling system, oil consumption can be effectively reduced, emissions can be reduced, and taking comfort can be improved.
Owner:GREAT WALL MOTOR CO LTD

Finite element simulation analysis and performance optimization method for non-pneumatic tire

The invention belongs to the technical field of tire performance optimization, and discloses an inflation-free tire finite element simulation and performance optimization method which comprises the following steps: fitting tire rubber uniaxial tensile test data based on ABAQUS professional software, establishing a finite element model of an inflation-free tire, and carrying out finite element analysis on a supporting structure and a tread part of the tire. By increasing the arc radius of the non-pneumatic tire hole and reducing the number of the non-pneumatic tire supporting structures, the stress-strain concentration phenomenon can be effectively weakened, the fatigue damage probability of the supporting structures is reduced, and the performance of the non-pneumatic supporting structuresis improved. The hard elastomer layer with certain width and thickness is added between the supporting structure and the tread, so that the performance of the supporting structure of the non-pneumatic tire can be improved, the ground contact stress is uniformly distributed, and the ground contact performance of the non-pneumatic tire is improved. The optimal combination of the non-pneumatic tireis obtained by designing an orthogonal test, and the supporting structure and the grounding performance of the optimal combination non-pneumatic tire are greatly improved.
Owner:QINGDAO UNIV OF SCI & TECH

Method for controlling static and dynamic liquid composite steering delay of caterpillar

The invention relates to a method for controlling the static and dynamic liquid composite steering delay of a caterpillar. The method comprises the following steps: using a pressure change course curve and the participation and operation quit timing of a coupler of a steering pump motor as a control target; and controlling the oil charging and discharging mass of the coupler through an electro-hydraulic proportional valve to control the output torque of the coupler, thereby reaching the purpose of controlling the pressure fluctuation of the pump motor. The control valve special for the static and dynamic liquid composite steering of the caterpillar enables the performance of a static and dynamic liquid composite steering system to be prompted, can enhance the riding comfortableness of a tank, reduce the labor intensity of a driver, prolong the service life of the pump motor, enhance the steering efficiency of the steering system, fully utilize energy sources and save fuel.
Owner:CHINA NORTH VEHICLE RES INST

Vehicle speed bump generator of traffic light intersection

The invention discloses a vehicle speed bump generator of a traffic light intersection. A speed bump bearing plate is obliquely fixed on a pavement via an electromagnetic brake bearing, a groove hole is arranged below the speed bump bearing plate, a transmission generation cavity is arranged below the groove hole, a transmission mechanism and a generation mechanism are arranged in the transmission generation cavity, the middle of a connecting rod is provided with a spring disc, two ends of the spring disc are fixed on the side wall of the transmission generation cavity respectively, the upper end of a transmission rack is provided with a spring, the upper portion of the spring is hinged to an upper pull plate through a pin shaft, the upper pull plate is fixed at the top of the transmission generation cavity, the upper portion of a connecting bearing and the other side of the connecting bearing relative to the transmission rack are provided with a transmission gear meshed with the transmission rack, and the transmission gear is fixed on a generator rotating shaft. The vehicle speed bump generator is integrally mounted at the traffic light intersection, a plurality of generators are arranged at each traffic intersection according to the traffic rule of driving on the right, and generation is completed while the function of maintaining traffic rules is achieved.
Owner:HENAN NORMAL UNIV

Saddle pad of motorcycle

InactiveCN1778619BIncrease the applicable height rangeIncreased minimum storage capacityCycle saddlesCycle containersEngineeringRocker arm
A saddle cushion of motorcycle is arranged on the top of baggage case to define a baggage containing space and is composed of a bottom plate unit with two arc rocker-arms pivoted to its bottom end, and a main body of saddle cushion laying on said bottom plate unit. Its advantages are comfortable riding and large volume of baggage case.
Owner:KYMCO

Method for detecting idle items in elevator car based on image semantic segmentation

The invention discloses a method for detecting idle items in an elevator car based on image semantic segmentation, which comprises the following steps: when the camera in the elevator car is installed for the first time or when the angle of the camera is adjusted later, the ground area of ​​the elevator car is marked by a tool ; When the elevator door is completely closed, capture a picture through the camera on the top of the car to obtain the floor area of ​​the elevator car; when the door continues to be closed, set the time interval, and take a picture and analyze it every once in a while. The area of ​​the car floor area is continuously measured and the results are saved; using the saved multiple measurement results, compare the car floor area obtained by image semantic segmentation with the floor area calibrated by the maintenance personnel. If the average value is greater than the set threshold, It means that there are idle items in the elevator car, and if it is less than the set threshold, it means that there is no item; according to the detection result and the opening and closing of the door, the duration of the item's appearance during the continuous closing period is obtained.
Owner:ZHEJIANG NEW ZAILING TECH CO LTD

A remote control car cooling seat

The invention discloses a remotely-controllable automobile cooling seat which is composed of an automobile seat body, a refrigeration device, an energy supply device and a control device. A cushion with air holes is arranged on the surface of the automobile seat body. The automobile seat body is internally provided with a ventilation pipeline and a ventilation opening. According to the refrigeration device, the semiconductor refrigeration technology is adopted, a radiation system composed of a bendable heat pipe, a fin-type radiating fin and an axial flow fan is arranged at the hot end of a semiconductor refrigeration chip, and the radiation strength is enhanced. The energy supply device is composed of a solar photovoltaic panel, a battery manager, a storage battery and a driving module, and absorbed solar energy is converted into electric energy to the maximum extent. Meanwhile, a temperature sensor is adopted to conduct real-time temperature sampling, a GSM module is adopted to be communicated with a core processor, and the functions of rapid remote control over the automobile seat temperature and short message reminding through mobile phone short messages are achieved. The remotely-controllable automobile cooling seat is simple in structure, efficient in operation and environmentally friendly and saves energy, the problem that the automobile seat is burning due to parking for a long time when it is hot is solved, and the riding comfort is improved.
Owner:HOHAI UNIV CHANGZHOU

Front cabin frame assembly adopting forked front girder assembly

The invention discloses a front cabin frame assembly adopting a forked front girder assembly, which comprises a front anti-collision beam, an auxiliary frame assembly and the forked front girder assembly fixed on the rear sides of the left end part and the right end part of the front anti-collision beam, and the forked front girder assembly comprises a front girder assembly, a front carriage outerside longitudinal beam angle plate and a front floor cross beam extension piece, a front carriage outer side longitudinal beam angle plate extends and is fixed from the outer side of the middle-frontportion of the front girder assembly to the inner side of the threshold, a front floor cross beam extending piece extends and is fixed from the inner side of the middle-rear portion of the front girder assembly to the middle channel longitudinal beam, and the end of the auxiliary frame assembly is detachably fixed to the upper side of the middle of the corresponding front girder assembly. The ends of the auxiliary frame assembly are located on the front sides of the corresponding front carriage outer side longitudinal beam angle plates and the corresponding front floor cross beam extending pieces respectively. According to the forecabin frame assembly adopting the forked type front girder assembly, the problem that the force transmission path of a front collision girder area of a vehicleis single is solved, stress concentration of an auxiliary frame assembly during front collision is avoided, and riding comfort is guaranteed.
Owner:SAIC-GM-WULING AUTOMOBILE CO LTD

Double-power-flow gear transmission

InactiveCN107906189ARealize the function of variable speed and torque increaseReduced ride comfortGearing controlGearing detailsPower flowEngineering
The invention relates to a double-power-flow gear transmission. The double-power-flow gear transmission comprises a transmission shell. A first input shaft is borne in the transmission shell and is connected with a second power device. The first input shaft is fixedly connected with a hollow shaft first-gear gear and a hollow shaft third-gear gear. A second input shaft penetrates the first input shaft and is connected with a first power device. The second input shaft is matched with an input shaft second-gear gear in a clearance sleeving manner. An output shaft and the second input shaft are located on the same axis. The output shaft is fixedly connected with an output shaft gear. The second input shaft is provided with a first synchronizer. The middle shaft is sleeved with a middle shaftfirst-gear gear and a middle shaft third-gear gear in a clearance manner. A middle shaft second-gear gear and a middle shaft constant mesh gear are fixedly connected. A second synchronizer is fixed tothe middle shaft. The middle shaft first-gear gear and the hollow shaft first-gear gear are engaged. The middle-shaft second-gear gear and the input shaft second-gear gear are engaged. The middle shaft third-gear gear and the hollow shaft third-gear gear are engaged. The middle shaft constant mesh gear and the output shaft gear are engaged.
Owner:QIJIANG GEAR TRANSMISSION

An adaptive cruise control method for electric vehicles with optimal switching of drive and brake

The invention discloses a driving-and-braking-optimal-switching electric-automobile adaptive cruise control method. The driving-and-braking-optimal-switching electric-automobile adaptive cruise control method includes the following steps that ideal driving-and-braking torque and the driving-and-braking switching rule are calculated through an upper controller; the ideal driving-and-braking torque is distributed on four wheels through a lower controller. According to the driving-and-braking-optimal-switching electric-automobile adaptive cruise control method, the driving-and-braking-optimal-switching adaptive cruise control strategy is designed and converted into a real-time mixed-integer nonlinear programming proposition through the upper controller according to the current road environment and the driving requirements, the proposition is solved through the double-nesting solving algorithm based on the modified genetic algorithm, and the driving-and-braking switching rule and the corresponding driving / braking controlling torque are obtained. The torque is distributed by the lower controller to hub motors through vertical loads according to the ideal driving-and-braking torque calculated by the upper controller to allow wheels to harmoniously run. The number of actions of a driving actuator and a braking actuator is reduced, and the wheels tend to be in the best working state accordingly.
Owner:DALIAN UNIV OF TECH

Locomotive adhesion control method based on online search for optimal traction torque

The invention discloses a locomotive adhesion control method based on online search of optimal traction torque. The method of the invention includes the following steps: Step S1, idling detection is performed on the locomotive axle, and the first idling axle in the locomotive is identified as the locomotive. Search for the axle, and the other axles are used as receiving axles; Step S2, obtain the optimal traction torque suitable for the search axle to run under the current track surface condition through the optimal torque online search algorithm; Step S3, use the optimal traction torque of the search axle According to the change of the sticky weight caused by the axle load transfer phenomenon, the optimal traction torque of each receiving axle is adjusted quickly. The invention designs a sticking control strategy based on the whole vehicle, considers the integrity of the locomotive, and analyzes the influence of the axle load transfer phenomenon of the vehicle body on the sticking weight of each axle; Coordination and cooperation can effectively increase the overall traction force of the locomotive and improve the overall traction performance of the locomotive.
Owner:CHENGDU YUNDA TECH CO LTD

Tyre pressure reporter and felly tyre set with the reporter

The invention discloses a fixed tire internal pressure reporting device with simple structure and excellent reliability, responsiveness and durability, and a wheel rim and tire set using the device. The tire internal pressure notification device is composed of a main body mounted on the rim and an indicator that bears the tire internal pressure. The indicator is used to report the internal pressure of the tire, and a bearing is provided to separate the inner tube around the indicator from the rim. The pressure member notifies the internal pressure of the tire by deformation or movement of the above-mentioned indicator. While the above-mentioned rim and tire group has the internal pressure reporting device of the above-mentioned tire, a main body is also installed on the above-mentioned rim, and a valve main body for sealing air is installed on the above-mentioned main body.
Owner:BRIDGESTONE CYCLE CO
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