43results about How to "Improve generalization rate" patented technology

A longitudinal coaxial gear-shiftable electrically driven bridge reduction gearbox assembly comprises a motor, a first shaft assembly (1), an intermediate shaft assembly (2), a main conical shaft assembly (3) and a differential mechanism assembly (4), wherein the intermediate shaft assembly (2) comprises an intermediate shaft (15), an intermediate shaft normally engaged gear (12) and an intermediate shaft low-speed gear (13); the main conical shaft assembly (3) comprises a driving bevel gear (10), a main conical shaft low-speed gear (14) and a fixing gear holder (9); the motor is connected with the first shaft assembly (1); the first shaft assembly (1) is engaged with the intermediate shaft normally engaged gear (12); the intermediate shaft low-speed gear (13) is engaged with the main conical shaft low-speed gear (14); the main conical shaft assembly (3) is connected with the first shaft assembly (1) through a sliding engaging sleeve (8); and the driving bevel gear (10) is engaged witha driven bevel gear (11) of the differential mechanism assembly (4). Small gears of AMT are realized, and the system cost is reduced while dynamic performance is considered.

The invention discloses a platformization vehicle body floor structure. The platformization vehicle body floor structure comprises a front floor assembly and a rear floor assembly, wherein the front floor assembly is connected with the rear floor assembly through a connecting part of which the length is greater than the changing quantity of wheelbase of a lower vehicle body. According to the platformization vehicle body floor structure disclosed by the invention, the change of the wheelbase of the lower vehicle body is realized through changing the length dimension of a part at a joint of the rear floor assembly and the front floor assembly in the first length direction; the connecting position of the front floor assembly and the rear floor assembly can be adjusted to meet the adjusting requirement of the wheelbase of the lower vehicle body, so that the matching requirement of the vehicle body floor for the lower vehicle body with different wheelbases is met; the use rate of generalization parts and components can be increased, the change of the wheelbase of a platformization vehicle can be realized through the minimum change of parts, and the development period and the cost are reduced.

The invention discloses an identification method of sleep stage events. The identification method of the sleep stage events is used for interpreting sleep electroencephalogram and electro-oculogram mixed signals and includes the steps that the sleep electroencephalogram and electro-oculogram mixed signals are divided at preset time intervals to obtain a preset number of mixed signal fragments; allthe mixed signal fragments are adopted to obtain time domain waveforms corresponding to the mixed signal fragments respectively; preset rules in a rule library are adopted to process all the time domain waveforms to obtain processing results; if the processing results meet screening requirements corresponding to the preset rules, the mixed signal fragments corresponding to the processing resultsare marked as sleep stage event types corresponding to the preset rules. By the adoption of the identification method of the sleep stage events, huge differences caused by pure frequency band parameters on different users are effectively avoided, and the accuracy of interpreting the sleep electroencephalogram and electro-oculogram mixed signals is further improved. The invention further disclosesan identification device and equipment of the sleep stage events and a computer readable storage medium. The identification device and equipment of the sleep stage events and the computer readable storage medium all have the beneficial effects.

The invention relates to a vehicle communication control system and a vehicle communication control method. The vehicle communication control system comprises an operating plate, a signal transmitter, a signal receiver and a control unit, wherein a plurality of control members are arranged on the operating plate; the operating plate is used for sending corresponding control instructions controlling a plurality of pieces of controlled equipment according to the selected control members; the signal transmitter is electrically connected with the operating plate, and used for receiving the control instructions, converting the control instructions into corresponding radio signals and sending out the radio signals; the signal receiver receives the radio signals, and converts the radio signals into the control instructions controlling the corresponding controlled equipment; and the control unit is electrically connected with the signal receiver and the controlled equipment, and controls the corresponding controlled equipment to execute corresponding action according to the control instructions converted by the signal receiver. The system and the method can optimize a vehicle harness, reduce the assembling difficulty of the vehicle harness, increase a universalization rate of the vehicle harness, and lower the development cost of parts of the vehicle harness.

The invention relates to a three-axis servo feed transmission structure of a machining center, which comprises a ball screw, a nut seat, a motor seat, a bearing seat, a lock nut, two groups of precision bearings supporting two ends of the ball screw, a coupling and a servo motor; an outer side seal and an inner side seal are respectively placed on two sides of each precision bearing, and a limit buffer collision block is placed on the ball screw which is near to the precision bearings; a gap is preserved in the position of an internal shoulder of a back-end lead screw of the ball screw; and the pre-stretched lock nut is placed at the tail end of the ball screw. The three-axis servo feed transmission structure has the benefits of improving the precision and the stability of servo transmission, having high universalization rate of parts, controlling the production cost, reducing the failure rate and facilitating the repair and the maintenance.

The invention discloses a mounting structure of a threshold decoration part. The threshold decoration part comprises end plates at the two ends of the threshold decoration part, a side plate and a bottom plate, wherein the side plate and the bottom plate are connected with the end plates. The end plates at the two ends are provided with snap fastener assemblies which are connected with a front fender and a side surrounding outer plate respectively, the two ends of the side plate are respectively provided with a first buckle assembly which is in clamping connection with the front fender and the side surrounding outer plate, and the side plate is further provided with a plurality of second buckle assemblies which are in clamping connection with a threshold reinforcing cross beam. The bottom plate is provided with a nut assembly which is fixedly connected with the threshold reinforcing cross beam. Fasteners which are high in market generalization rate, simple in structure, and reliable in assembling are mounted on an automobile body, the mounting positions are reasonably arranged, and the fasteners are matched and assembled according to the assembling characteristics and the assembling requirements of different positions for use. The mounting structure of the threshold decoration part improves the reliability, and is low in possibility of mistakenly arrangement and missing arrangement and high in assembling operation, thereby achieving the purpose of simple and efficient assembling.

The invention provides a mounting device of a rotary speed reducer of a crane, which comprises a mounting platform and an eccentric flange connecting support, wherein the mounting platform is fixed on the crane, and the eccentric flange support is fixed on the mounting platform. Therefore, the mounting device of the rotary speed reducer of the crane and the using method thereof can lead the craneto load the rotary speed reducers with different configurations by using different eccentric flange connecting supports on the mounting platform. The mounting device of the rotary speed reducer of the crane has simple structure and can regulate the rotation center distance on site without using an eccentric speed reducer, greatly improve the universalization rate of the mounting platform and reduce the production and maintenance cost of the crane; and the corresponding mounting method is convenient to operate, and simple and easy to operate and can greatly improve the working efficiency of the crane.

The invention discloses a hanging type three-pedal arrangement method, and belongs to the technical field of vehicles. The hanging type three-pedal arrangement method comprises the steps that: the height difference Ha between an accelerator pedal point and a heel point is calculated according to the sitting posture height H30 range of a platform driver; the initial angle [theta]a of an accelerator pedal is calculated according to the range of the sitting posture height H30 of the platform driver; according to the foot position of the platform driver, the height difference Ha between the accelerator pedal point and the heel point, the initial angle [theta]a of the accelerator pedal and the shape and size of the accelerator pedal, the initial arrangement position of the accelerator pedal in the XZ direction is determined; and the height difference Hb of the brake pedal point and the heel point is obtained, and the initial angle [theta]b of the brake pedal is obtained. According to the hanging type three-pedal arrangement method, preliminary arrangement of the three pedals can be rapidly completed through quantized arrangement gap requirements among the three pedals and the corresponding position relation of different driver sitting posture heights in the platform, the generalization rate and arrangement efficiency of the platform are improved, and the development cost is reduced.

The invention discloses a power battery installing structure for a novel electric vehicle. The power battery installing structure comprises an expanded support body, a battery fixing support and a vehicle body beam. The power battery installing structure is characterized in that the expanded support body comprises reinforcing ribs, the two ends of each reinforcing rib are symmetrically provided with connecting tables respectively, the connecting tables are each of a groove structure, a plurality of through holes are formed in each connecting table, a turned edge is arranged on each connectingtable, the battery fixing support comprises a first connecting plate, a second connecting plate, a third connecting plate, a fourth connecting plate and a reinforcing plate, the first connecting plateand the end face of one side of a power battery are attached and fixedly connected through welding, first threaded holes are formed in the second connecting plate, corresponding second threaded holesare formed in the vehicle body beam, and the first threaded holes, the through holes and the second threaded holes are matched. Power batteries of different sizes can be assembled for the same vehicle type, the structure of a lower vehicle body does not need to be adjusted, the universality of the vehicle body is increased, and the research and development cost and manufacturing cost are saved.

The invention discloses a combined lifting type pipe fitting welding device which comprises a chassis positioning mechanism assembly. A plurality of lifting supporting assemblies for adjustable horizontal linear displacement and pipe fitting welding and positioning tools installed on the lifting supporting assemblies are installed at the bottom of the chassis positioning mechanism assembly. Afterto-be-welded pipe fitting parts are placed on the pipe fitting welding and positioning tool, the directions of the horizontal movement along the Y-axis and the Z-axis and the rotation around the Z-axis of the pipe fittings are adjusted by horizontally moving and rotating the pipe fitting welding and positioning tools, the horizontal movement along the X-axis of the pipe fittings relative to the chassis positioning mechanism is realized by sliding the sliding lifting supporting assemblies, and therefore the four freedom degree directions of the pipe fitting parts are adjusted and positioned incooperation. Through the combined lifting, displacement adjusting and angle positioning, rapid height setting, positioning and welding are conducted on all the pipe fittings, it is ensured that all parameter indexes of the pipe fittings meet the requirements after forming, multi-station welding is realized, the welding efficiency and welding quality are improved, and universality is improved.

The invention relates to a modularized steel-aluminum mixed auxiliary automobile frame structure and belongs to the technical field of automobile design and manufacture. The modularized steel-aluminummixed auxiliary automobile frame structure comprises a left edge beam module, a right edge beam module, a cross beam module and a reinforcing support module. In order to meet the requirements for theleft and right installation spans of different auxiliary automobile frames, a main module is universal, only the length of a middle cross beam is changed, the middle cross beam can be of a sectionalmaterial or metal plate stamping and welding structure, a main mold is not changed, a reinforcing support can be spliced and welded through steel profiles and aluminum profiles or steel pipes and aluminum pipes according to strength requirements, only the size of a welding fixture is adjusted, the change cost is quite low, the above auxiliary automobile frames are modularized through a bolt connection thought, the universality rate of parts between platform automobile models is increased, and development cost is reduced.

The invention provides an automobile drive disc assembly, which includes a drive disc body, a starting ring gear, a signal tooth, a flange and a pressure plate. The starting ring gear is fixedly connected with the drive disc body, and the signal teeth are directly stamped on the outer peripheral wall of the drive disc body, and are integrated with the drive disc body, and the signal teeth are formed on the outer peripheral wall of the drive disc body. Evenly distributed on the top and perpendicular to the plane of the disc body, and two teeth are continuously removed from all the teeth, as a benchmark for judging the crankshaft timing phase. The flange plate and the pressure plate clamp the drive disc body in the middle, and the present invention directly stamps out the signal teeth on the drive disc body, and the integrated design of the signal teeth and the disc body avoids the trouble of secondary positioning. The matching accuracy of the sensors is higher, the accuracy and reliability of signal collection are improved, and the manufacturing cost is reduced. The introduction of the flange greatly improves the generalization rate of the key component crankshaft, and the central positioning hole is easier to process and the cost is lower.

The invention discloses an electric vehicle platform expansion structure without a battery pack shell. The electric vehicle platform expansion structure comprises a front anti-collision beam, a rear longitudinal beam, a rear floor cross beam, a rear anti-collision beam, two front longitudinal beams, two front variable longitudinal beam connecting modules, a middle vehicle body battery frame and two rear variable longitudinal beam connecting modules. The rear floor cross beam is connected with a rear longitudinal beam, and the rear longitudinal beam is connected with a rear anti-collision beam; the plurality of front longitudinal beams are connected with the front anti-collision beam, and each front longitudinal beam is connected with one end of each front variable longitudinal beam connecting module; the other end of each variable longitudinal beam connecting module is connected with the middle vehicle body battery frame; one end of each rear variable longitudinal beam connecting module is connected with the middle vehicle body battery frame, and the other end of each rear variable longitudinal beam connecting module is connected with a rear longitudinal beam; the middle vehicle body battery frame serves as a vehicle body framework and is also used for containing the battery module, the weight of a vehicle body is reduced, the driving range of the electric vehicle is increased, and the length of the vehicle body framework and the ground clearance of a vehicle chassis are expanded.

The invention relates to a special gearbox for a compact modular plastic extruder. The special gearbox comprises a gearbox shell, a high-speed transmission module, a low-speed transmission module andan output shaft. The high-speed transmission module is formed by a various-speed-ratio input gear shaft and a small gear. The low-speed transmission module is formed by a fixed-speed-ratio intermediate gear shaft and a large gear. The input gear shaft, the intermediate gear shaft and the output shaft are parallelly mounted in the gearbox shell. The small gear and the intermediate gear shaft are mounted coaxially, the large gear is mounted on the output shaft and in meshed connection with the intermediate gear shaft, and the small gear is in meshed connection with the input gear shaft. The twotransmission modules are adopted for gear transmission, part universality is improved, and a product manufacturing period is shortened while the minimum inventory requirement is met. A regulating thrust bearing is mounted between the large gear and a neutral position of the shell, a space utilization rate is optimized optimally, and the integral product manufacturing cost is reduced. By adoption of a lock nut and a thrust ball bearing structure, output shaft pre-tightening quantity can be accurately adjusted, and product operating reliability is improved.

The invention relates to a passenger car rear-row seat rotating shaft fixing structure. The structure comprises a seat rotating shaft fixing hinge plate assembly and a car body rear wheel cover. The vehicle body rear wheel cover provides a welding plane and is connected with the seat rotating shaft fixing hinge plate assembly in a spot welding mode, and a seat rotating shaft is fixed to a vehicle body. The seat rotating shaft fixing hinge plate assembly comprises a fixing hinge plate assembly and a hinge reinforcing plate connected with the fixing hinge plate assembly in a spot welding mode. The fixing hinge plate assembly comprises a mounting shell and a lock hook; a U-shaped opening is formed in the mounting shell and is used for mounting and fixing a seat rotating shaft; and the lock hook can rotate and is matched with the mounting shell. The passenger car rear seat rotating shaft fixing structure has the advantages that the structure is simple, seat installation is more convenient and more efficient, the strength is high, and seat fixing is firmer. Requirements on a vehicle body rear wheel cover in an installation environment are low, the generalization rate is high, and a more positive effect on cost optimization is achieved.

The invention belongs to the technical field of commercial vehicle suspension systems, and relates to a cavity-type ventral wing connecting balanced suspension bracket. According to the cavity-type ventral wing connecting balanced suspension bracket, a main body stress part of the balanced suspension bracket is designed into a ventral wing connecting cavity-type structure, the utilization rate of materials is improved, and the cost is reduced. The balanced suspension bracket is connected with a vehicle frame longitudinal beam and a vehicle frame transverse beam by reasonably arranging hole positions, a connecting way structure makes the distance between the tension face and the compression face of the bracket be large, so parts obtain high inertia moment and bending rigidity, and the action of enhancing the rigidity of a vehicle frame is played. The function of being connected with the small end of a V-shaped reaction rod is canceled, the function is subdivided, the generalized rate is improved, the repairing and maintenance cost is reduced, and the expensive maintenance cost of replacing a large bracket due to bolt holes connected with the small end of the V-shaped reaction rod are damaged is avoided.

The invention discloses a front-end wheel train driving power generation system and method and a vehicle. The system comprises an engine, a gearbox, an engine controller, a high-voltage generator, a transfer case, a high-voltage generator controller, a distribution box, a power battery and a power battery controller, wherein the gearbox, the engine controller and the high-voltage generator are arranged on the engine; the transfer case is arranged on the gearbox; the high-voltage generator controller is connected with the high-voltage generator; the distribution box is installed on the high-voltage generator controller, the power battery and the power battery controller are installed on the distribution box; the high-voltage generator is arranged at the front end of the engine, the high-voltage generator is driven by a belt pulley system at the front end of the engine to generate electricity, stable high-voltage direct current is output to the distribution box after rectification and voltage stabilization are carried out through the high-voltage generator controller, and the distribution box allocates different power outputs according to the actual electricity demand of each upper load connected to the distribution box. Therefore, stable high-power generation output can be realized during driving and parking of the vehicle; meanwhile, the power generation controller coordinates and controls the power generation system to work through a CAN bus and detects system faults, and high-voltage power utilization safety of the vehicle is guaranteed.

The invention discloses an adjustable wheel speed sensor, which includes a wheel hub and a wheel speed sensor. The wheel speed sensor includes a wire harness end, a head threaded rod, an installation fixing rod and a sensor body. The head threaded rod is a hollow structure, and its interior is There are internal threads, the sensor body is fixed on one end of the head threaded rod; one end of the fixed rod is provided with a telescopic groove, and an adjusting screw is arranged in the telescopic groove, and the other end of the head threaded rod is embedded in the telescopic groove and threadedly connected with the adjusting screw , so that the head threaded rod is telescopically connected with the installation and fixing rod, the interior of the adjusting screw is provided with a through harness hole, and the end of the harness passes through the harness hole and is connected to the sensor body; the bottom plate of the brake is provided with a connecting hole, and the head threaded rod Can be embedded in the connection hole. The invention can be applied to different car models, reduces the types of wheel speed sensors, improves the generalization rate, reduces development costs and shortens the development period.

The invention discloses a method for realizing compatibility between a vehicle navigation storage space and a multimedia player storage space. The method comprises the steps that (1) the storage space of a vehicle-mounted product is divided into a first storage space and a second storage space, the first storage space is configured to be used for storing navigation data, and the second storage space is configured to be used for multimedia playing storage; and (2) responding to the monitoring condition that the function requirement of the vehicle-mounted product is a vehicle-mounted multimedia player, the first storage space and the second storage space are merged, the data in the first storage space is deleted, and the storage space obtained after merging is configured to be used for multimedia playing storage. The invention furthermore discloses the vehicle-mounted product. Through the method and the vehicle-mounted product, the vehicle-mounted product can be configured into different states according to different product function requirements, therefore, the development cost of the vehicle-mounted product is lowered, and the development cycle of the vehicle-mounted product is shortened.

The invention provides an automobile anti-collision beam and an automobile with the same. The automobile anti-collision beam comprises an anti-collision beam body (1), at least one energy absorption buffer block assembly (2) and an anti-collision beam mounting plate (3), wherein at least one energy absorption buffer block assembly (2) is arranged on the anti-collision beam body (1); and at least one energy absorption buffer block assembly (2) is provided with an anti-collision beam mounting plate (3). According to the energy absorption buffer block, a modular assembly structural form can be achieved, and the energy absorption buffer block can be conveniently adopted by different vehicle types, and the universalization rate is increased.

The invention provides an installing structure for an idler wheel. The installing structure comprises the idler wheel for guiding a guide engine front end gear train belt, bearings, an installing table and a bolt. The outer rings of the bearings are sleeved with installing shaft holes of the idler wheel. The installing table is formed on an engine cylinder block and is adjacent to the idler wheel. The bolt sequentially penetrates the inner rings of the bearings, stretches into a bolt hole formed in the installing table and is fastened to the installing table. Stepped column bodies are axially arranged between the installing table and the bearings. The small-head ends of the stepped column bodies with the settable length are fastened and pressed into the inner rings of the bearings to be matched with a bolt cap of the bolt to clamp the inner rings of the bearings, the large-head ends of the stepped column bodies are fixedly connected with the installing table, and therefore the problem of limitation of the length and the size of the installing table is solved; and the axial position can be flexibly adjusted, and the universalization rate of the engine cylinder block is increased.

The invention discloses a modular arrangement structure of the front cabin of a passenger car, which comprises a front cabin baffle and a baffle connecting plate connected with the front cabin baffle, and the front cabin baffle has a plurality of connections for installing the baffle connecting plate board mounting location. The modular layout structure of the passenger car front compartment of the present invention can take into account the platform layout of various vehicle types by setting the installation position of the baffle connecting plate to be adjustable, reducing the investment in research and development funds, reducing development costs and cycle, and greatly reduce the development risk after adding new components.

The invention provides a base-free brake pedal structure. The base-free brake pedal structure comprises a front panel, a pedal arm and a booster. The pedal arm is hinged to the booster at the position of the middle structure, and the booster is fixed to the lower portion of the front panel. A support is further included. The support is fixed on the front panel and is positioned above the booster. The upper end of the pedal arm is hinged to the support. Through structural optimization and innovation, a brake pedal base is omitted, and the pedal arm is directly assembled on the automobile front panel, so that on the premise that functionality is not affected, the part complexity is greatly reduced, the assembly weight is reduced, variables are reduced, the generalization rate is increased, meanwhile, the development period is shortened, and the part cost is reduced.

The invention discloses a water tank module capable of selecting water channels and washing machines with the module. The module comprises a waterway plate provided with the water channels, water channel clamping parts are arranged on one or more water channels, and the water channels are blocked through the water channel clamping parts or different water channels are selectively communicated. When the washing machines are produced, different washing machines can share the same water tank module, different water channel clamping parts are selected to be matched with clamping ports in differentpositions, the water channels are blocked or different water channels are selectively communicated, and the functions of different washing machines are achieved. According to the water tank module, the component generalization rate is increased, the cost is lowered, the production efficiency is improved, the water tank module is easy to operate and implement, and the water tank module is unitized.

The invention discloses a water tank module with selectable water channels and a washing machine thereof, comprising a water channel plate provided with water channels, at least one water channel is provided with a water channel clip, and the water channel is blocked by the water channel clip or selected to conduct different water channels. When producing washing machines, different washing machines can share the same water tank module. By selecting different water channel clips to cooperate with bayonet sockets at different positions, the water channel can be blocked or different water channels can be selected to conduct different water channels to realize different washing machine functions. The water tank module improves the generalization rate of parts, reduces the cost, improves the production efficiency, and is simple to operate and easy to realize, and the water tank module is unified.

The invention provides an auxiliary frame connection bushing component, an auxiliary frame and an automobile. The auxiliary frame connection bushing component comprises a plurality of upper mandrels,a lower mandrel and a rubber part, the lower mandrel penetrates the rubber part to be in vulcanized connection with the rubber part, the upper mandrel and the lower mandrel are axially provided with first through holes and a second through hole respectively, each first through hole is communicated with the second through hole to form a shaft hole for connection with a shaft, and one of the upper mandrels different in height is selected to be coaxially connected with the lower mandrel. By replacement of the different upper mandrels, axial size variation of the auxiliary frame connection bushingcomponent is realized, and accordingly limiting stroke adjustability of the auxiliary frame connection bushing component is realized.

The invention discloses a vehicle-mounted CD player interface. The vehicle-mounted CD player interface comprises a single-chip microcomputer, a serial conversion module and an operational amplification module, wherein the single-chip microcomputer is used for converting a communication protocol of a CD player core into a standard communication protocol and converting the standard communication protocol into the communication protocol supported by the CD player core, and the single-chip microcomputer is connected with the CD player core; the serial conversion module is used for converting the standard communication protocol into a serial communication protocol and converting the serial communication protocol into the standard communication protocol, and the serial conversion module is connected with the single-chip microcomputer and a vehicle-mounted MP5; and the operational amplification module is used for amplifying an audio output by the CD player core and transmitting the amplified audio to the vehicle-mounted MP5, and the operational amplification module is connected with the vehicle-mounted MP5 and the CD player core. The invention furthermore discloses a vehicle-mounted CD player, and an electric connection structure and a communication method of the vehicle-mounted MP5 and the vehicle-mounted CD player. According to the vehicle-mounted CD player interface, the vehicle-mounted CD player, and the electric connection structure and the communication method of the vehicle-mounted MP5 and the vehicle-mounted CD player, different types of vehicle-mounted CD players can communicate with the same vehicle-mounted MP5, so that the universality of the vehicle-mounted MP5 is improved.

The invention discloses a method for calibrating configuration parameters of a vehicle instrument, which comprises the following steps: 1: the calibration device sends a request to the vehicle instrument to reply to enter the extended mode; 2: the calibration device sends a seed request to the vehicle instrument, and the vehicle Use the instrument to reply the corresponding seed information to the calibration device according to the seed request; 3: The calibration device assembles the seed information into plaintext and encrypts and calculates it to form ciphertext, and replies to the vehicle instrument; 4: The vehicle instrument decrypts the ciphertext into plaintext, And compare and verify the plaintext with the seed information; 5: If the verification is successful, the calibration device will write the calibration parameters to the vehicle instrument; 6: The calibration device will read the calibration parameters from the vehicle instrument; 7: The vehicle instrument will calibrate The device returns the calibration parameters; 8: the calibration device compares the calibration parameters; 9: if the comparison is successful, the calibration device continues to write the next calibration parameter to the vehicle instrument. The invention can form the instruments required by various instantiated vehicle models.