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590results about How to "Improve driving comfort" patented technology

Method and system for controlling low-speed worming

The invention provides a method and a system for controlling low-speed worming. The method includes that a vehicle control unit (VCU) collects current vehicle state signal and sends the same to a motor control unit (MCU); the MCU determines current working mode by controlling target rotating speed of a motor according to the current vehicle state signal; the VCU controls rotating speed and working mode of the motor by detecting braking pedal signal, acceleration pedal signal, gear position signal and actual motor rotating speed signal fed back by the motor of a vehicle, and the MCU controls the motor to realize control on low-speed worming of the vehicle.
Owner:BEIJING ELECTRIC VEHICLE

A vehicle intelligent driving control method

The invention relates to the field of automobile driving safety, in particular to a vehicle intelligent driving control method, which comprises the following steps: in the vehicle driving process, using a laser radar to obtain the reflection point information of the road environment in front of the vehicle; determining a road boundary according to the reflection point information; determining a lane line according to the reflection point information or a road boundary; obtaining the curvature of the lane centerline according to the road boundary and the lane line fitting the lane centerline; calculating a steering wheel rotation angle to be adjusted for driving the vehicle along the lane centerline according to the curvature of the lane centerline. Laser radar is used to collect data and calculate the curvature of the road ahead, and the curvature is used to control the lateral motion of the vehicle. It has the advantages of high reliability and can improve the driving comfort, especially suitable for the automatic driving of the expressway, and can also enhance the existing adaptive cruise system.
Owner:SHENZHEN BUGUNIAO TECH CO LTD

Dynamic coordinated control method for bidirectional different requirements of trunk road

The invention relates to the field of traffic control and particularly discloses a dynamic coordinated control method for the bidirectional different requirements of a trunk road. The method comprises the following steps of (1) calculating a key intersection largest in traffic flow according to the historical data of a detection coil; (2) determining a plurality of different coordination strategies according to the different traffic requirements in the up and down directions of the key intersection, and calculating a coordinated timing plan in different coordination strategies through constructing a model; (3) finally, according to the traffic flow monitored in real time, voting and determining an optimal coordination strategy. According to the invention, the method can meet different traffic requirements in the two ways of a trunk road. By adopting the method, the traffic efficiency of the trunk road can be effectively improved, and the traffic jam of the trunk road can be relieved. Therefore, the travel time of citizens can be saved. Meanwhile, the energy consumption of vehicles can be saved, and the pollution of the traffic environment can be reduced.
Owner:广州市交通规划研究院有限公司

Concrete pavement material for heavy traffic roads and preparation method thereof

The invention relates to a concrete pavement material for heavy traffic roads and a preparation method thereof. The material is composed of a component A, a component B and a component C in a mass ratio of 1:(0.2-0.6):(4-8). The component A comprises the following components in parts by mass: 40-80 parts of epoxy resin, 0-20 parts of epoxy reactive diluent, 10-50 parts of elastic modifier, 0.2 part of defoaming agent and 0.2 part of dispersing agent. The component B comprises the following components in parts by mass: 100 parts of curing agent, 0-10 parts of curing accelerator and 1 part of coupling agent. The component C comprises the following components in parts by volume: 100 parts of fine stone, 30-300 parts of fine sand, 130-800 parts of waste rubber particle, 50-100 parts of waste rubber powder and 10-20 parts of crystal whisker. Compared with the prior art, the concrete pavement material for heavy traffic roads has the advantages of high strength, favorable durability, favorable roadability, energy saving, environment friendliness and the like, and is convenient for construction.
Owner:SHANXI PROVINCIAL RES INST OF COMM +1

Method and device for assisting a vehicle operator

The invention relates to methods for assisting an operator of a vehicle (101) approaching a set of traffic lights (201) which allows a stop line (203) to be crossed in at least one first mode of operation while not allowing the stop line (203) to be crossed in a second mode of operation. According to said method, (i) the vehicle (101) receives a signal describing the current mode of operation of the set of traffic lights and the time left until the mode of operation changes, (ii) verification is made in the vehicle (101) on the basis of the received signal whether the vehicle (101) can reach the stop line (203) at a speed selected within a predefined speed range while the set of traffic lights (201) is in the first mode of operation, and (iii) a speed of the vehicle (101) is influenced and / or a recommendation to influence the speed is issued in accordance with the result of the verification process.
Owner:CONTINENTAL TEVES AG & CO OHG

Coaxial coupling driving system of double planetary gear systems and double motors

The invention provides a coaxial coupling driving system of double planetary gear systems and double motors. The coaxial coupling driving system comprises the double motors, the double planetary gear systems and the like. Each planetary gear system comprises a gear ring, a planetary carrier and a sun wheel. A rotor of the first motor is connected with the gear ring of the first planetary gear system. A rotor of the second motor is connected with the sun wheel of the first planetary gear system and the sun wheel of the second planetary gear system through synchronizers correspondingly. The planetary carriers of the two planetary gear systems are connected with an output shaft. The gear ring of the second planetary gear system is connected with a shell. The output shaft is connected with the input end of a deceleration differential. The output end of the deceleration differential is connected with two wheels through two half shafts. A motor control device is connected with an energy storage device and conducts electric power transmission. The motor control device is further connected with the first motor and the second motor and outputs a control command. The coaxial coupling driving system has the characteristic that the vehicle dynamic property, the energy consumption economical efficiency, the geographical adaptability and the application adaptability are better.
Owner:SHANGHAI JIAO TONG UNIV +1

Planetary intelligent self-adaptive two-gear multi-cam automatic speed change driver

The invention discloses a planetary intelligent self-adaptive two-gear multi-cam automatic speed change driver which comprises a power device, a box body, a transmission shaft, a planetary transmission mechanism, a circular ring body axial outer conical sleeve and a circular ring body axial inner conical sleeve, wherein the transmission shaft is sleeved by the circular ring body axial outer conical sleeve which is transmitted by a helical cam pair; and the planetary transmission mechanism adopts a slow gear transmission mode and has a multi-end-face-cam transmission structure. The planetary intelligent self-adaptive two-gear multi-cam automatic speed change driver has all the advantages of existing cam self-adaptive automatic speed change devices and outputs slow gear power through the planetary transmission mechanism; by adopting the multi-end-face-cam slow gear transmission structure, the transmission efficiency is improved, the sensitivity during gear shifting can be guaranteed, sudden jerk and clamping stagnation which are caused by gear shifting can be eliminated, and the driving and riding comfortableness is improved; and furthermore, energy is saved, consumption is reduced, and the dynamic property, the economical property, the driving safety and the comfortableness of vehicles are greatly improved.
Owner:SOUTHWEST UNIV

Fabricated prestressed heat-resistant cement concrete pavement and construction process thereof

The invention discloses a fabricated prestressed heat-resistant cement concrete pavement and a construction process thereof. The pavement is formed by splicing a plurality of fabricated prestressed heat-resistant pavement plates which are parallelly paved and connected into a whole through transverse prestressed steel stranded wires, wherein each fabricated prestressed heat-resistant pavement plate comprises a fabricated prestressed pavement plate which consists of a plurality of pavement plate blocks connected through connecting plates, and a vermiculite concrete heat-resistant paving layer which is paved on the fabricated prestressed pavement plate; each pavement plate block comprises a plurality of common plates which are connected into a whole through longitudinal prestressed steel stranded wires; and the connecting plates and the common plates are cement concrete prefabricated plate blocks. The construction process comprises the following steps of: 1, prefabricating the cement concrete prefabricated plate blocks; 2, transporting the cement concrete prefabricated plate blocks; and 3, paving the pavement. The pavement is reasonable in structural design, convenient to construct, low in input cost and short in construction period, and has heat resistance, construction quality is easy to ensure, and various practical problems of the traditional fabricated cement concrete pavement can be solved.
Owner:CHANGAN UNIV

Driving comfort based two-lane highway traffic safety evaluation method

The present invention relates to a driving comfort based two-lane highway traffic safety evaluation method. In the method, a cooperative oscillation model of driver comfort in the prior art is used as a basis, and the cooperative oscillation model is further optimized according to comprehensive effects of four factors, i.e., a person, a vehicle, a road and an environment, on a heart rate variation rate of a driver to obtain a two-lane cooperative oscillation model. The model uses the heart rate variation rate of the driver as a reference, the heart rate variation rates of different drivers driving under different environmental conditions are analyzed by using a driving simulation chamber; the effects of the environmental factors on the heart rate variation rate of the driver are fully taken into consideration; and therefore a quantitative relationship between the environment factors and the heart rate variation rate of the driver is obtained, achieving higher accuracy.
Owner:HEBEI UNIV OF TECH

Seamless bridge deck expansion joint structure for road engineering and construction process of seamless bridge deck expansion joint structure

The invention discloses a seamless bridge deck expansion joint structure for road engineering and a construction process of the seamless bridge deck expansion joint structure. The seamless bridge deck expansion joint structure for the road engineering comprises a bridge body and an expansion join, wherein concrete paving layers are arranged on the bridge body; a preserved notch is formed between two adjacent concrete paving layers; a clearance is reserved between two adjacent bridge bodies or between the bridge body and a bridge abutment; the seamless bridge deck expansion joint structure further comprises an elastic-plastic body and a backing plate; the backing plate is positioned on the bottom surface of the preserved notch for closing the clearance; the backing plate is arranged below the elastic-plastic body; the elastic-plastic body is positioned in the preserved notch for forming an elastic-plastic body expansion joint; and asphalt concrete layers are paved on the concrete paving layers and the elastic-plastic body expansion joint in a penetrating way. According to the seamless bridge deck expansion joint structure disclosed by the invention, a real seamless bridge deck can be formed; and the seamless bridge deck expansion joint structure has the advantages of higher structural safety, greater convenience in construction and convenience in replacement.
Owner:SICHUAN EXPRESSWAY COMPANY

Auxiliary vehicle speed control method and system during vehicle lane changing and vehicle

The invention relates to an auxiliary vehicle speed control method and system during lane changing of a vehicle and a vehicle, thereby realizing auxiliary vehicle speed control during lane changing ofthe vehicle and realizing rapid lane changing and safe lane changing of the vehicle. The auxiliary vehicle speed control method comprises the steps that: whether a vehicle that is provided with a cruise control function and enables the cruise control function to be activated meets a condition of activating the auxiliary lane changing vehicle speed control function or not is determined; if so, whether the current environment meets the lane changing condition or not is judged; if so, situation evaluation is conducted on the vehicle and a moving target possibly colliding with the vehicle duringlane changing of the vehicle so as to determine whether the vehicle meets the condition of entering auxiliary vehicle speed control or not; and if so, auxiliary vehicle speed control is conducted on the vehicle according to relative motion parameters between the vehicle and a first moving target in front of the track.
Owner:CHONGQING CHANGAN AUTOMOBILE CO LTD

Electric four-wheel drive hybrid power system

The invention discloses an electric four-wheel drive hybrid power system which comprises a power battery, a front driving unit and a rear driving unit, wherein the front driving unit comprises an engine and an ISG motor, and further comprises a CVT transmission; the ISG motor is connected with the engine through a clutch C1; the ISG motor is connected with the CVT transmission through a clutch C2; the clutch C1 is used for controlling the separation and combination of the ISG motor and the engine; the clutch C2 is used for controlling the separation and combination of the ISG motor and CVT transmission. The hybrid power system adopting the front driving unit, the double clutches and the CVT transmission to form power coupling has the advantages that the working modes such as independent working of the ISG motor, and parallel connection work of the engine and the ISG motor are realized by controlling the clutches; the working modes of pure electric mode, parallel connection driving mode, running power generation mode, series connection power generation mode and four-wheel driving mode can be realized by controlling the work of a rear driving motor; the fuel economy and emission performance are higher.
Owner:奇瑞新能源汽车股份有限公司

Head up display system, vehicle control system and vehicle

The invention discloses a head up display system applied to a vehicle. The head up display system comprises a display device which is used for obtaining and projecting an instrument information image, a reflection device which is used for reflecting a projection image projected by the display device, an imaging device which is used for scaling a reflection image reflected by the reflection device and projecting the reflection image at a preset position in front of a driving position, and a control device which is used for controlling the angle of the reflection device and the imaging scale of the imaging device. The control device is connected with the display device, the reflection device and the imaging device. The head up display system can project information of an instrument panel in form of an image to the front of a driver, and the driver can adjust scaling of the image through the control device, so that the driver does not need to lower his head to check the instrument panel in the drive, convenience is provided for the driver, and the driving safety is ensured further. The invention also provides a vehicle control system including the abovementioned head up display system, and a vehicle including the abovementioned head up display system.
Owner:KOSTAL SHANGHAI MANAGEMENT +1

Power-split hybrid power system mode switching method

The invention relates to a power-split hybrid power system mode switching method used for realizing smooth switching from a pure electric mode to a hybrid power mode. The power-split hybrid power system mode switching method comprises the following steps of: 1) in an off-line manner, by adopting an discrete dynamic programming method, respectively obtaining a plurality of engine starting curves corresponding to different set conditions by taking vehicle comfort as an optimization objective in the process of power mode switching; 2) according to actual operating conditions and off-line engine starting curves, performing interpolation solution, and obtaining the optimal engine starting curve corresponding to actual operation, and the torque of a motor MG1, the torque of a motor MG2 and a torque control value of a brake B2 corresponding to the curve at each moment; and 3) compensating the optimal engine starting curve corresponding to actual operation according to the minimum torque ripple at an output end, and finally obtaining a corresponding torque control value in the process of power mode switching. Compared with the prior art, the power-split hybrid power system mode switching method disclosed by the invention has the advantages of improving driving comfort and simultaneously taking account of switching time and energy consumption.
Owner:TONGJI UNIV

Pavement method for anti-movement composite structure of large-span steel box beam bridge deck

The invention relates to a method for paving combined anti-push structures on the surface of a large-span steel box girder bridge, including the following steps: 1) pretreating the armor plates of the large-span steel box girder bridge; 2), welding shear studs: welding shear studs on the armor plates of the large-span steel box girder bridge, with an interval at area of (35-45)cm X (35-45)cm between two shear studs; 3) colligating the reinforcement mats: fixing the reinforcement mats at specification of (95-105)cm X (95-105)cm on the shear studs; 4) mineral aggregate grading; 5)preparing and paving cast-type asphalt concrete; 6) paving a waterproof bond coat; and 7)paving anti-skid denoising wearing layer: paving a anti-skid denoising wearing layer at thickness of 3-5cm on the waterproof bond coat. The method has the advantages that cohesiveness at the interfaces is good, the paved layer and the armor plates are strong in coordinated deformability, and construction process is simple and convenient.
Owner:WUHAN MUNICIPAL CONSTR GROUP +1

High-efficiency LED (Light-Emitting Diode) dual chip high-low beam integrated automobile headlamp module

The invention relates to a high-efficiency LED (Light-Emitting Diode) dual chip high-low beam integrated automobile headlamp module. The high-efficiency LED dual chip high-low beam integrated automobile headlamp module comprises an LED light source, a reflection cup, a heat sink, a lens and a sleeve, wherein a locating platform for arranging the LED light source is arranged on the heat sink; the LED light source is of an upper LED light source and lower LED light source combined dual light source structure; the reflection cup is of an upper reflection cup and lower reflection cup combined dual reflection cup structure; an upper reflection cup locating platform and a lower reflection cup locating platform are respectively arranged at the upper side and the lower side of the locating platform; and a plurality of parallel fin-shaped cooling plates are arranged at the outer sides of the upper reflection cup locating platform and the lower reflection cup locating platform on the heat sink; and gaps are formed between the adjacent cooling plates. The high-efficiency LED dual chip high-low beam integrated automobile headlamp module is good in illumination effect and heat dissipation effect, high in illumination level and clear in visual field, and ensures that an automobile headlamp is in a safe and stable working environment, thus greatly improving the driving safety and prolonging the service life of the automobile headlamp.
Owner:东莞市荣海光电科技有限公司

Intelligent magneto-rheological vibration damping system

The invention relates to an intelligent magneto-rheological vibration damping system, which comprises a magneto-rheological vibration damper, a plurality of transducers, signal conditioning units, a signal processor, a master processor and a controllable current controller module, wherein the plurality of transducers acquire vibration information of the magneto-rheological vibration damper; each signal conditioning unit is connected with one transducer; the signal conditioning units carry out amplification, filtration and level switch in sequence on the vibration information of the magneto-rheological vibration damper; the signal processor analyzes spectrums of information of the signal conditioning units; the master processor processes and combines a control model and a control strategy of the magneto-rheological vibration damper stored in the master processor to process information of a processing unit; and the controllable current controller module changes current values input to the magneto-rheological vibration damper according to a processing result of the master processor. The intelligent magneto-rheological vibration damping system has strong digital processing capacity, and can be well connected with hardware platforms and software platforms.
Owner:JIAXING UNIV

Automobile LED interior trim atmosphere lamp system and control method thereof

The invention discloses an automobile LED interior trim atmosphere lamp system. The automobile LED interior trim atmosphere lamp system comprises atmosphere lamps and an MCU master controller, wherein the output end of the MCU master controller is connected with the atmosphere lamps, and the signal input end of the MCU master controller is connected with a fingerprint recognition and processing system. According to the automobile LED interior trim atmosphere lamp system, switching between different color modes in a color system is achieved because three-primary-color LEDs are control through different currents, and the atmosphere lamps can change between various colors or be displayed in a dynamic full-color mode. A user can achieve switching between different modes just by touching a switch through fingers, and the automobile LED interior trim atmosphere lamp system is convenient to use, easy to control and low in cost. According to the automobile LED interior trim atmosphere lamp system, the colors, changing modes, usage modes and the like of the atmosphere lamps can meet the requirements of clients, and the driving comfort level is improved.
Owner:CHERY AUTOMOBILE CO LTD

Control method for auxiliary starting engine of power split hybrid electric vehicle brake

ActiveCN108556836AReduce the failure rate of startingSimple methodHybrid vehiclesPower splitElectricity
The invention provides a control method for an auxiliary starting engine of a power split hybrid electric vehicle brake. The control method for the auxiliary starting engine of the power split hybridelectric vehicle brake includes the steps that after a whole vehicle is powered on with high voltage and if the engine of the vehicle is determined to need starting, a first brake is controlled to beunlocked, and a hydraulic electric oil pump is simultaneously controlled to pressurize a second brake until the second brake is locked and second brake lock torque is obtained; then first motor demandtorque, second motor demand torque and preset engine demand torque are correspondingly and respectively sent to a first motor controller, a second motor controller and an engine controller through avehicle controller to execute accordingly; at the same time, the vehicle controller controls the second brake to output the second brake lock torque to a small sun gear of a double planetary row; whenengine speed reaches an engine ignition speed threshold A, the engine starts to inject fuel and ignite successfully, and then the starting of the engine is completed. The control method for the auxiliary starting engine of the power split hybrid electric vehicle brake has the advantages of being simple and effectively improving ride comfort and power performance of the hybrid electric vehicle during operation.
Owner:江西鼎盛新材料科技有限公司

Dust collection device for road

The invention discloses a dust collection device for a road. The dust collection device comprises a speed reduction band. A water storage cavity is formed in the position, on the lower side of the speed reduction band, of a roadbed. A u-shaped structure is adopted by the water storage cavity. A containing opening is formed in the upper end of the water storage cavity. Drainage pipelines and dust fall pipelines communicating with the drainage pipelines are symmetrically arranged in the water storage cavity. An overflow opening is formed in one side of each drainage pipeline. The dust collectiondevice has the advantages that when the speed reduction band is automatically stored and restores, a middle piston greatly reduces load gravity through incompressible static fluid, acting force is transmitted to a left piston and a right piston, the left piston drives a dust collection piston through a left piston rod to do the exhaust and suction stroke, the right piston drives a water suction piston through a right piston rod, a synchronous rod and a driven piston rod to do the water suction and drainage stroke, non-raised too high dust on the road is sucked into the dust fall pipelines tobe subjected to dust fall treatment, the dust is prevented from polluting the environment, and the body health of pedestrians is protected.
Owner:HEFEI XIAKANG ELECTRONICS COMMERCE CO LTD

System and control method of engine position management

The invention discloses a system of engine position management. According to the system of the engine position management, an enhancement mode time processing unit (ETPU) is adopted to achieve rapid and synchronic fault-tolerance. According to a crank signal processing module, a jumping edge of a crank position signal detected by an input crank position sensor is collected for several times. According to a cram shaft signal processing module, electrical level and a jumping edge of a cram shaft position signal detected by an input cram shaft position sensor are collected for several times in a mixing mode. According to a synchronous logical processing module, a crank state quantity signal output by the crank signal processing module and a cram shaft state quantity signal output by the cram shaft signal processing module are processed and analyzed and a synchronous state quantity signal is output so that an engine state can be changed in real time and synchronism of a crank and a cram shaft is finally achieved. The invention further discloses a control method for the engine position management. The system and the method are capable of achieving the process of the synchronism of an engine rapidly and steadily.
Owner:LIANCHUANG AUTOMOBILE ELECTRONICS

Mechanical, intelligent, adaptive, two-speed and multi-cam automatic transmission

The invention discloses a mechanical, intelligent, adaptive, two-speed and multi-cam automatic transmission which comprises a transmission shaft, a low speed transmission mechanism, a circular axial outer taper sleeve and a circular axial inner taper sleeve. The circular axial outer taper sleeve is sleeved outside the transmission shaft and is driven by a spiral cam pair. The slow speed transmission mechanism is provided with multi-end cams. The mechanical, intelligent, adaptive, two-speed and multi-cam automatic transmission has all advantages of the existing adaptive automatic cam transmission. By the slow speed transmission structure with the multi-end cams, flexibility of gear shifting can be guaranteed, jerk and jam in gear shifting are eliminated, driving comfort can be improved, energy is more reduced, consumption is more lowered, and power performance and economy of vehicles and driving safety and comfort can be improved greatly.
Owner:SOUTHWEST UNIV

Continuous rigid frame bridge based on steel truss-concrete slab composite beam

The invention discloses a continuous rigid frame bridge based on a steel truss-concrete slab composite beam. The continuous rigid frame bridge comprises a bridge substructure and the steel truss-concrete slab composite beam supported by the bridge substructure. The steel truss-concrete slab composite beam comprises a steel truss and a concrete bridge deck which is laid over the steel truss. The steel truss comprises one or more steel truss units; each steel truss unit is an inverted-triangle truss girder, wherein the inverted-triangle truss girder is composed of two upper chords, a lower chord, a left line of diagonal web members and a right line of diagonal web members, each upper chord comprises a first horizontal steel plate and a plurality of first vertical perforated steel plates evenly laid on the first horizontal steel plate, an upper chord transverse connecting system connected between the two upper chords comprises a plurality of upper chord transverse connecting pieces, and each upper chord transverse connecting piece comprises a second horizontal steel plate and a plurality of second vertical perforated steel plates evenly laid on the second horizontal steel plate. The continuous rigid frame bridge is simple in structure, reasonable in design, convenient to construct, good in stress performance, good in using effect and capable of effectively solving various problems existing in an existing continuous rigid frame bridge.
Owner:CHANGAN UNIV

Control device and method for braking in advance in vehicle

The invention provides a control method for automatic braking in a vehicle, which comprises the following steps: a. acquiring traveling indication information; b. judging whether braking is needed according to the traveling indication information; and c. if so, sending a braking indication signal. The invention also provides a control device for automatic braking in a vehicle, which comprises a first acquisition device, a first judging device and a first executive device, wherein the first acquisition device is used for acquiring the traveling indication information; the first judging device is used for judging whether braking is needed according to the traveling indication information; and the first executive device is used for sending a braking indication signal when determining that braking is needed. The invention also provides a vehicle with an automatic braking function. The invention judges whether braking is needed by acquiring the traveling indication information, thereby automatically braking or prompting the driver to brake before the driver brakes the vehicle as necessary. Thus, the invention effectively avoids the possibility of the driver's failure to brake in time, thereby reducing the possibility of traffic accidents and saving the energy sources.
Owner:SHANGHAI DIHADA COMP TECH

Modular multidirectional displacement telescopic device and bridge

ActiveCN105256718AExtended service lifeContinuous Traffic Bearing SurfaceBridge structural detailsCross bridgeModularity
The invention relates to building telescopic devices and provides a modular multidirectional displacement telescopic device which comprises a joint crossing beam and one or more comb plate assemblies, wherein the joint crossing beam comprises a supporting panel, two steel ball supports and at least one cambered surface support seat plate; the two steel ball supports and the cambered surface support seat plate are respectively positioned on the two sides of a structural joint; one steel ball support is a fixed support and the other steel ball support is a bi-directional movable support; the comb plate assemblies are arranged on one side of the joint crossing beam in sequence; adjacent comb plate assemblies are connected through rigid body elastic elements; the invention further discloses a bridge; the bridge comprises the telescopic device. The joint crossing beam of the telescopic device provided by the invention mainly eliminates influences generated by the angle rotation and displacement in the vertical direction and the comb plate assemblies and the rigid body elastic elements can eliminate influences of the bridge stretching and retraction change generated in the direction along the bridge and angle rotation in the cross-bridge direction, three-directional displacement, stretching and retraction, and rotation of the bridge caused by temperature, wind force and loads can be met, a continuous traffic bearing surface can be provided for vehicle running and noise reduction and vibration prevention effects are good.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP

Car driver voice assistant

The invention provides a car driver voice assistant. The structure of the car driver voice assistant comprises an intelligent controller, and a pickup unit and an execution unit both connected with the intelligent controller; a voiceprint identification module, a voice command storage module and an instruction generation module are arranged in the intelligent controller; the instruction generation module is used for comparing a voice signal acquired by the pickup unit with voice commands pre-stored in the voice command storage module, and if finding out a voice command matched with the voice signal, controlling the execution unit to execute the operation corresponding to the voice command; the voiceprint identification module is used for performing voiceprint identification on the voice signal output by the pickup unit and controlling the enable end of the instruction generation module, and allowing the instruction generation module to output a signal only after determining that the voice signal is transmitted by the driver. The car driver voice assistant has the advantages that the identity of a speaker is identified by use of the voiceprint identification technology, a person other than the driver can be prevented from controlling the car by use of the voice command, the operation of the driver is simplified while the safety of driving is guaranteed, and the comfort of driving is improved.
Owner:GREAT WALL MOTOR CO LTD

Rotational speed control method, device and electronic device for air conditioning compressor

The invention provides a rotational speed control method, a device and an electronic device of an air conditioning compressor, which relate to the technical field of compressor rotational speed control. The method is applied to a vehicle. Calculating a first temperature difference between a current vehicle interior temperature and a set temperature; The rotational speed of the air conditioning compressor of the vehicle is adjusted according to the first temperature difference. The invention can automatically adjust the rotational speed of the air conditioning compressor of the vehicle by judging the difference between the set temperature of the user and the actual temperature in the vehicle, thereby helping to adjust the refrigeration effect of the air conditioning and improving the driving comfort of the user.
Owner:重庆超力电器有限责任公司

Vehicle power assembly suspension and vehicle comprising same

ActiveCN104074920AMounting stiffness adjustmentReduce stiffnessSpringsJet propulsion mountingVehicle framePowertrain
The invention discloses a power assembly suspension and a vehicle comprising same. The power assembly suspension comprises a rubber body, a sensor, a first magnetic component, a second magnetic component and a controller; the interior of the rubber body is provided with an accommodation chamber; the rubber body is provided with a power assembly connecting structure and a frame connecting structure; the sensor is arranged between the rubber body and the power assembly connecting structure; the sensor comprises a pressure sensor and or an acceleration sensor; the first magnetic component and the second magnetic component are respectively fixed on the wall of the accommodation chamber; at least one of the first magnetic component and the second magnetic component is an electromagnet; the controller is connected with the sensor and the electromagnet. The power assembly suspension is simple in structure and small in size, adaptively adjusts parameters such as the self-stiffness according to the vibration condition of an engine to adapt to the vibrational frequency of the engine and accordingly well attenuates the engine vibration and improves the damping effect.
Owner:GREAT WALL MOTOR CO LTD

Reinforcing construction method in partial failure repairing of rural cement pavement

The invention provides a reinforcing construction method in partial failure repairing of a rural cement pavement. The reinforcing construction method comprises the following steps: excavating an old concrete pavement needing to be repaired to the top surface of a roadbed and cleaning; cutting the excavated old concrete pavement and thus cutting the pavement into an inclined plane along the thickness direction of the road surface; respectively paving one layer of steel wire net on each of the bottom and the middle pat of the inclined section; paving thread steel bars and extending to a road surface region needing to be newly poured; pouring concrete into an excavated region of the old road surface to form a new concrete road surface. The invention aims to solve the road surface crushing problem in old cement road surface diseases of rural highways and useful resources including steel wires, steel bars and the like which are usual in villages can be effectively utilized; the engineering cost is saved and a repairing technology is simple, so as to provide a simple, economical and effective method for repairing the road surfaces of rural roads.
Owner:HUBEI UNIV OF TECH
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