1240 results about "Speed reduction" patented technology

The invention discloses a double-closed-loop cooperative control method of a direct-drive electric chassis and a power system, relates to the technical field of power control of electric special vehicles, and provides a rotating speed and torque double-closed-loop cooperative control architecture, and realizes double-core real-time cooperative operation and dynamic optimization of motor output characteristics through a 32-bit processor. A direct-drive transmission structure is combined, a traditional speed reduction device is omitted, a flat wire motor directly drives a rear axle through a transmission shaft, and a four-in-one controller is matched, so that the system loss is reduced by 33%, and the power density is improved by 15%; on the basis of real-time temperature / electric quantity data of a lithium iron phosphate battery management system, control parameters are adaptively adjusted, and the bottleneck of performance attenuation in a low-temperature environment of-35 DEG C is broken through; and a high-voltage interlocking and insulation monitoring module is integrated, and an emergency hydraulic system is automatically switched when an electrical fault occurs, so that multi-stage safety guarantee is formed. According to the technology, the energy recovery efficiency is remarkably improved by 20%, and the wind resistance stability and the extreme environment reliability are effectively enhanced.

The invention discloses a gravity center self-adjustment control system and method based on an electric balance car, and relates to the technical field of electric balance car control, and the gravity center self-adjustment control system comprises a multi-source sensing module, a control decision module, a multi-mode execution module and a safety control module. According to the invention, attitude, pressure, motion and environment data are fused in real time through the multi-source sensing module, three types of instability risks of sudden lateral offset, continuous slope offset and load distribution abnormity are accurately identified, and the control decision module intelligently starts differential compensation, wheel track adjustment or counterweight adjustment according to risk types. The multi-mode executing mechanism can cope with composite unbalance in a cooperative mode, the safety control module adopts a dynamic threshold value to adjust intervention sensitivity, multiple guarantees are formed in combination with a fault diagnosis and speed reduction parking mechanism, and finally the control burden of a user is relieved while the trafficability of complex road conditions is improved.

The invention belongs to the field of wind power generation, and particularly relates to a separated self-adaptive wind driven generator which comprises a base, a resistance rotating shaft and a lift rotating shaft are sequentially sleeved with a fixed shaft, an upper bevel gear and a lower bevel gear which are meshed with each other are arranged at the top end of the lift rotating shaft, and a sliding block is arranged on the outer side of the lower bevel gear. A protection device is arranged on the lifting force rotating shaft, a plurality of speed reduction blocks are arranged on the protection plate in a coupling mode, and the other ends of the speed reduction blocks are connected with the protection sleeve through speed reduction springs; a sliding groove is formed in the resistance rotating shaft, the sliding block moves in the sliding groove, and a limiting groove is formed in the sliding groove; the bottom of the lower bevel gear is connected with the supporting ring through a limiting spring, and a speed reduction groove is formed in the inner wall of the resistance rotating shaft and corresponds to the speed reduction block in position. According to the wind driven generator, the lifting force type fan blades and the resistance type fan blades can be automatically separated or combined according to the rotating speed condition, the hysteresis quality of the resistance type fan blades during high-speed operation is avoided, and the situation that the rotating speed of the fan blades is too high, and equipment damage is caused can be prevented.

The invention is suitable for the field of cycloidal speed reducers, and provides a cycloidal speed reducer which comprises a shell, an input mechanism, an output mechanism, a speed reduction mechanism and a limiting assembly, and is characterized in that the shell comprises a speed reduction supporting front shell and a speed reduction supporting rear shell, and threaded holes are formed in the speed reduction supporting front shell and the speed reduction supporting rear shell; threaded holes are formed in the speed reduction supporting front shell and the speed reduction supporting rear shell in an annular mode, the speed reduction supporting front shell and the speed reduction supporting rear shell are installed in a matched mode through screws, the machining cost of the cycloid speed reducer is reduced, the service life is prolonged, the loss of parts is smaller, meanwhile, the service life can be prolonged by replacing a quick-wear shaft sleeve, and the service life of the cycloid speed reducer is prolonged. And the use cost of the cycloidal-pin wheel speed reducer is further reduced.

The invention discloses a small RV speed reducer for humanoid robot joints. The small RV speed reducer comprises an input assembly, a speed reduction assembly and an output flange. The input assembly drives the transmission sun gear through the input shaft and is meshed with the crank planetary gear set to form first-stage speed reduction. The crank planetary gear set drives the small-tooth-difference gear pair assembly (including the upper / lower winding wheel and the pin wheel housing) to perform planetary motion with a certain angle phase difference, and second-stage speed reduction is achieved. And the output flange is in threaded connection with the input end cover to finish power output. Through compact integration of the planetary gear and the cycloidal gear mechanism, the outer diameter of the speed reducer is controlled within 80 mm, the thickness of the speed reducer is smaller than 30 mm, the high reduction ratio is guaranteed, meanwhile, the size and weight are remarkably reduced, the transmission efficiency is greatly improved, and the speed reducer is suitable for humanoid robot joint scenes with limited space.

The utility model discloses an automatic window opening machine, and relates to the field of window opening equipment. The automatic window opening machine comprises a box body, a driving assembly, a speed reduction chain assembly, a transmission chain assembly, an electromagnetic clutch component and a fluid damping component, the speed reduction chain assembly is jointly driven by the first driving part and the second driving part, so that the power and the cruising ability of the window opening machine are improved; during window opening work, the electromagnetic clutch component is switched to be in the state that the input end of the transmission chain assembly and the speed reduction end of the speed reduction chain assembly are connected and combined so as to implement window opening work. The acting force of transmission of the transmission chain assembly is damped by the fluid damping part, so that the force transmission effect of the transmission chain assembly is relieved, and the risk that the speed reduction chain assembly and the transmission chain assembly are damaged is reduced. According to the automatic window opening machine, buffering damping is provided for power attenuation or power reverse change through the fluid damping component, damage to a transmission structure can be reduced, the service life of the window opening machine can be prolonged, and operation stability of the window opening machine can be improved.

The invention discloses a balanced two-wheeled vehicle trajectory tracking optimization control method based on an SCMG, and solves the trajectory tracking deviation problem under the SCMG physical boundary condition. The method comprises the following steps: adaptively adjusting a preview distance, calculating the preview distance according to a vehicle speed, a curvature and a transverse deviation value, and limiting a range; the maximum turning angle and the rotating speed of the handlebar are coupled with the vehicle speed, and large turning is preferentially decelerated. The method further comprises the steps of designing a reconnaissance distance on the basis of a pure tracking method, and limiting the speed in advance by calculating the reconnaissance distance, finding a reconnaissance point, calculating the reconnaissance curvature and solving Wherein the preview distance, the reconnaissance distance, the reconnaissance curvature, the speed limit value and the like have corresponding calculation modes, the deceleration, the constant value and the like of the vehicle are set according to actual situations, coupling of the handlebar and the vehicle speed is achieved through a mapping table or a function, and an empirical value is obtained through a real vehicle critical state test. According to the method, the trajectory tracking effect is optimized, and the driving control performance is improved.

The invention discloses a rollover risk pre-judgment and speed closed-loop control system and method integrating an IMU and an encoder, and relates to the technical field of vehicle active safety control. The system comprises an inertial measurement unit, an encoder, a controller, an execution mechanism and an alarm, the inertial measurement unit provides vehicle attitude data, and the encoder provides vehicle speed information. And the controller fuses the data in real time to calculate a vehicle rollover risk index, and sets a double-threshold criterion: when the risk is close to a threshold, an early warning is given, and when the risk exceeds the threshold, a deceleration control instruction is sent to the execution mechanism. The executing mechanism adjusts vehicle power output or braking accordingly, and automatic speed reduction is achieved. The controller forms a closed-loop control loop through feedback of the encoder, the speed reduction force is dynamically adjusted, and the speed of the vehicle is stably reduced to a safe range. Through the method, the rollover risk of the vehicle can be sensed in advance and actively intervened, rollover accidents are avoided, and the rollover-resistant safety of the vehicle is remarkably improved.

The invention relates to the technical field of automobile safety, and provides an electric tail gate anti-pinch control method and system, which introduces a prediction + self-adaption intelligent decision normal form, on one hand, the motion information of a tail gate is obtained, and the time sequence data of an obstacle is combined to be input into an LSTM model to predict the track of the obstacle; a collision prediction conclusion is output to be matched with a graded speed reduction strategy to execute tail gate control, and through prediction in advance, the system response efficiency is effectively improved, and the clamping damage probability is reduced; and on the other hand, when a contact signal of the tail gate is detected, real-time contact force and real-time vehicle working condition information are obtained in real time, a dynamic anti-pinch threshold value is calculated and compared with the real-time contact force for analysis so as to execute tail gate control, the dynamic anti-pinch threshold value is dynamically adjusted according to the vehicle working condition and the tail gate state, scene adaptation is carried out, the anti-pinch recognition accuracy can be improved, and the safety of the vehicle is improved. The false triggering probability is reduced; therefore, the electric tail gate anti-pinch system which is faster in response, more intelligent and more reliable is obtained.

The invention relates to the technical field of deceleration motor monitoring and diagnosis, in particular to a deceleration motor health state on-line monitoring and fault diagnosis system, which comprises an operation signal acquisition module for acquiring and processing a signal to generate a trend set, and a vibration and current difference spectrum identification module for establishing a mapping to generate a coupling set, the rotating speed response correlation analysis module analyzes fluctuation and generates a relation graph, the component state diagnosis module identifies abnormal nodes and generates a state set, and the health and fault confirmation module accurately locates fault source points and generates fault identification results through multi-dimensional cross comparison. Through same-period multi-dimensional signal alignment and response identification, dynamic mapping and difference association are established, a quantitative trend and an electromechanical track are formed, coupling analysis integrity is improved, an electromechanical change rule is synchronously extracted, feature response is quantitatively expressed, abnormal node identification precision is enhanced, early fault capture sensitivity and identification are improved, data isolation is reduced, and the method is suitable for large-scale popularization and application. And a logic consistent health judgment basis is constructed.

The invention discloses an overspeed protection device for a metallurgical electric hoist, and relates to the technical field of cranes. The overspeed protection device for the metallurgical electric hoist comprises the electric hoist, a walking device is fixedly connected to the top of the electric hoist, a connecting shaft is fixedly connected to the right side of a reel of the electric hoist, an overspeed detection mechanism is fixedly connected to the right side of the reel of the electric hoist, and a speed reduction mechanism is fixedly connected to the outer wall of the connecting shaft. The outer wall of the connecting shaft is fixedly connected with a brake mechanism on the right side of the speed reduction mechanism. According to the overspeed protection device for the metallurgical electric hoist, a locking telescopic rod extends and is clamped into a corresponding groove in a locking disc, so that a connecting wheel rolls up a pulling wire, a pulling-up block is lifted upwards from the bottom of a guide pipe, part of energy is converted into potential energy of the pulling-up block, and the speed of a lifting hook of the electric hoist is slowed down; and the disc brake disc is prevented from losing the braking capacity due to overheating.

The invention provides a cooling and lubricating system, a vehicle and a control method of the cooling and lubricating system. The system comprises an oil pan and a conveying pipeline, and the inlet end of the conveying pipeline communicates with the oil pan; the power element, the filtering element, the driving element, the heat exchange element and the speed reduction element are sequentially arranged on the conveying pipeline in the conveying direction of lubricating oil. The outlet end of the conveying pipeline communicates with the oil pan. The temperature detection part is arranged between the filtering element and the driving element so as to detect the real-time temperature of the lubricating oil filtered by the filtering element; and the controller is connected with the temperature detection part so as to control at least one of the rotating speed of the power element, the rotating speed of the driving element, the rotating speed of the speed reduction element and the heat exchange efficiency of the driving element according to the real-time temperature. And the size is huge.

The invention relates to an ultrathin hub electric wheel with a speed reducer integrated in a low-speed drum brake, which comprises a cooling water channel, a motor, a drum brake, a planetary gear speed reducer, a hub, a hub bearing and an axle which are sequentially arranged from outside to inside in the radial direction and are positioned at the same axial position, the two ends of the cooling water channel are connected with an electric wheel outer shell and an electric wheel inner shell correspondingly, and the transmission path of driving force in the electric wheel is from the motor to the planetary gear reducer to the hub to the rim. Compared with the prior art, the axial space of the electric wheel assembly can be compressed to the maximum degree, layout of the speed reduction hub electric wheel assembly at the wheel end of a vehicle is facilitated, and the electric wheel assembly has the advantages of being highly integrated in space and compressed in the axial space limit.

The invention discloses a highway service area safety prevention and control method and system based on artificial intelligence, and relates to the technical field of highway service area safety prevention and control. Through an environment adaptive dynamic compensation mechanism, the problems of poor image quality, detail loss, high noise and the like under different light conditions are effectively solved, the details of the image are supplemented, and the image quality is improved; an image recognition detection algorithm is utilized to accurately record information such as pedestrian flow and vehicle types, and a reliable basis is provided for safety risk prevention and control; the vehicle circulation rate, the population circulation rate and the dangerous chemical risk degree are integrated to calculate the actual risk degree of the danger, and the potential risk of the service area can be comprehensively reflected, so that a scientific, reasonable and targeted safety risk prevention and control scheme is formulated. The speed reduction condition of the vehicle is monitored and reported in real time, the safety management efficiency of the service area is effectively improved, the accident rate is reduced, and safe operation of the expressway service area is guaranteed.

The present invention provides a flapping-wing mechanism based on incomplete gear transmission, including a skeleton support structure, a reduction gear structure, a flapping-wing rod structure, a transmission gear structure, a transmission main shaft structure and a motor structure; the motor structure, the reduction gear structure, the transmission main shaft structure, the transmission gear structure and the flapping-wing rod structure are sequentially connected in transmission. A motor output shaft gear is arranged on the output shaft of the motor. The reduction gear structure includes a first reduction gear and a double-layer gear; the transmission gear structure includes a first incomplete gear, a second incomplete gear and a third incomplete gear; in the present invention, the transmission gear structure is used to cooperate with the flapping-wing rod structure to convert the rotational motion of the main shaft structure driven by the motor into the flapping motion of the flapping-wing rod structure through a plurality of incomplete gears, without a quick return characteristic and with uniform speed changes. And through the mutual meshing between the gears, the technical effects of high flapping synchronization and stable and consistent transmission ratio can be achieved.

The utility model relates to the technical field of motors, and particularly discloses a speed reduction motor, which comprises a speed reducer shell, a motor shell, a fan cover shell and a fan, a speed reducer air duct is formed in the speed reducer shell, a motor air duct is formed in the motor shell, the fan cover shell is positioned between the speed reducer shell and the motor shell, and the fan cover shell is positioned between the speed reducer shell and the motor shell. The fan cover shell is provided with an exhaust outlet and two air inlets which are communicated with each other, the two air inlets are communicated with the speed reducer air duct and the motor air duct respectively, and the fan is located in the fan cover shell so that airflow can flow from the air inlets to the exhaust outlet. The fan in the fan cover shell enables airflow to flow towards the exhaust outlet, so that the speed reducer air duct and the motor air duct simultaneously extract external air to cool the speed reducer assembly and the motor assembly, and a good heat dissipation effect on the speed reducer assembly and the motor assembly is guaranteed; the speed reducer assembly and the motor assembly provide reliable support for the two sides of the fan respectively so as to reduce vibration and noise in the operation process of the fan.

A wheel driving mechanism (1) and a vehicle having same. The wheel driving mechanism (1) comprises: a rotating support (10), the rotating support (10) being internally provided with a matching cavity (11); a speed reduction assembly, the speed reduction assembly cooperating with the rotating support (10) and driving the rotating support (10) to rotate; a first fixing shaft (31), which passes through the rotating support (10) and is fixed to the rotating support (10) by means of a first fixing member (33); and a plurality of differential gears (32), the differential gears (32) being rotatably mounted on the first fixing shaft (31) and located in the matching cavity (11).

A heavy truck planet wheel electric drive axle comprises a first speed reduction unit and a planet row speed reducer which are in transmission connection and further comprises a differential mechanism, the differential mechanism is in transmission connection with an output shaft, and a planet carrier of the planet row speed reducer is connected with a differential mechanism shell of the differential mechanism. The output end of the first speed reduction unit is in transmission connection with a sun gear of the planet row speed reducer, the input end of the first speed reduction unit is connected with a driving motor, and a gear shifting mechanism is further connected to the planet carrier and can connect or disconnect power connection between an inner gear ring of the planet row speed reducer and the planet carrier. According to the electric drive axle, first-stage speed reduction is provided through the first speed reduction mechanism, and first-gear large-torque output and first-gear and second-gear high-speed and high-efficiency output are achieved through the gear shifting mechanism. Meanwhile, the transmission system has the requirements for high strength and high rigidity, the planetary gear train is adopted, the size is reduced, the structure is compact, the number of gears is reduced, the assembly weight is effectively reduced, and compared with an existing scheme, the transmission system is more compact and meets the space requirement.

The disclosure provides a water outlet device, including a body, an impeller, a speed reducing member and a switching member. When in use, water enters a water passing chamber, and the impeller begins to rotate around a first axle line due to a hydraulic action, and at the same time drives the speed reducing member to revolve. Since outer gear teeth of the speed reducing member are engaged with inner gear teeth, the speed reducing member further rotates around a second axle line during the revolution, and the number of teeth of the outer gear teeth is less than the number of teeth of the inner gear teeth, thereby achieving a function of speed reduction. During the revolution of the speed reducing member, a driving shaft slides in a driving groove and abuts against a groove wall of the driving groove.

The invention relates to the technical field of scissor fork truck brake control, and discloses a scissor fork type aerial work platform walking brake control system and method.The scissor fork type aerial work platform walking brake control method is characterized in that an operation handle enables a key to reset and triggers a brake request, and initialization and triggering of a brake control sequence are achieved; the state of the shear fork truck is monitored, gradient and load information is collected, and the external environment working condition and the internal load state are synchronously obtained by calling data of a tilt angle sensor and a pressure sensor in real time; according to rapid braking of the shear fork truck, based on data collected in real time, a three-stage cooperative braking strategy of speed reduction, pressure relief and turn-off is adopted, and based on gradient information collected in real time, the switching time sequence between stages is adjusted in a self-adaptive mode, and accurate matching of the braking process, dynamic loads and topographic conditions is achieved; therefore, the effect of considering the braking efficiency and the terminal parking stability on the premise of no mechanical wear is achieved; and the shear fork truck completes braking and tends to stop stably. And different working conditions can be quickly, stably and adaptively adapted.

The invention relates to an electric drill speed reduction structure and an electric drill, and provides the electric drill speed reduction structure which comprises a wheel type continuously variable transmission and a cycloidal pin wheel speed reducer. The invention further provides an electric drill. The electric drill is provided with the electric drill speed reduction structure. The speed reduction structure of the electric drill comprises a wheel type continuously variable transmission and a cycloidal pin gear speed reducer, has the characteristics of wide speed regulation range, stepless speed regulation, balanced operation, low noise and the like, and simultaneously overcomes the problems that lubricating grease of a gear box is easy to flow out of a gear shifting hole and the gear shifting is blocked in the traditional structure; the electric drill provided with the electric drill speed reduction structure is far superior to a traditional gear box type electric hand drill in the aspects of rotating speed, torsion and impact rate in a screw driver mode, and due to the fact that stepless speed regulation can be achieved, no matter how power is needed, a user can always enable a power motor to work under the working condition of the maximum power or the maximum energy efficiency by adjusting the speed ratio of speed reduction all the time.

The invention belongs to the technical field of new energy automobile transmission, and particularly discloses a double-gear electric drive axle system and a gear shifting control method.The system mainly comprises a drive motor, a first-stage gear pair, a second-stage gear pair, a synchronizer and a planetary gear mechanism, and high-gear and low-gear switching is achieved through axial movement of the synchronizer. At a high gear, a gear ring of the planetary gear mechanism is jointed with the sun gear, and the transmission ratio is 1; in the low gear, the gear ring is locked, and speed reduction transmission is achieved. The gear shifting control method comprises a gear upshift process and a gear downshift process, and gear shifting without power interruption is achieved through the steps of torque clearing, gear disengagement, rotating speed adjustment, gear engagement, torque recovery and the like. The multi-gear biased electric drive axle has the technical advantages of simple and compact mechanical structure, easiness in control, uninterrupted power and the like, and meanwhile, the drive axle adopts the countershaft to perform coaxial biased arrangement, so that the problem of intensified mass center bias of the multi-gear biased electric drive axle is relieved, direct connection of a high-speed motor and a planetary gear mechanism is avoided, and the problems of uneven load and NVH of planetary gears are solved.

The invention discloses a vehicle speed downshift algorithm for windscreen wiper software. The algorithm comprises the following steps of working condition classification, wherein a red light waiting scene and a low-speed vehicle following scene are divided through a vehicle speed signal v and an acceleration a; safety evaluation: judging the speed reduction feasibility by combining the rainfall sensor signal R and the motor current I; dynamic speed reduction: based on the working condition classification and the safety evaluation result, the wiping frequency of the windscreen wiper is adjusted according to the gradient; quit condition judgment: when a preset quit condition is met, the standard wiping frequency of the windscreen wiper is recovered immediately. By reasonably controlling the wiping frequency of the windscreen wiper, unnecessary high-frequency wiping is reduced, the abrasion of the windscreen wiper blade is reduced, and the service life is prolonged; a rainfall sensor and motor current detection are fused, the whole scene from light rain to heavy rain is covered, and the risk of fuzzy view is avoided.

The invention discloses a safety interlocking system of a formula warehouse stocker and a use method thereof, and belongs to the technical field of warehouse equipment safety, and the safety interlocking system comprises a safety state monitoring module which is used for monitoring safety state information in a stocker roadway in real time; the control module is in communication connection with the safety state monitoring module and is used for receiving and processing the safety state information and generating a control instruction according to preset safety logic; the brake execution module is arranged on the stacking machine, is in signal connection with the control module and is used for receiving the control instruction and executing corresponding speed reduction or brake operation on the stacking machine; and the man-machine interaction and alarm module is in communication connection with the control module and is used for displaying the system state, giving an alarm prompt and receiving a manual instruction. According to the invention, the risk of mechanical injury when personnel enter the roadway is effectively avoided, and the automatic safety level and the overall reliability of the operation of the stacker in the formula warehouse are remarkably improved.

The invention discloses a gear shaft surface changing control method and device. The method comprises the steps that a preset impact target stroke value is obtained, wherein the preset impact target stroke value is a gear shaft stroke value from gear shifting to gear shaft collision; the real-time stroke value of the gear shaft is obtained in real time from the starting moment of gear switching; when it is recognized that the gear shaft stroke value reaches the preset speed reduction point position, reverse torque is applied so that the rotating speed can be reduced to the target rotating speed before the gear shaft stroke value reaches the preset impact target stroke value; and after the gear shaft is subjected to soft face-attaching collision, the torque is increased at a preset slope, and zero-crossing face changing of the gear shaft is completed. In the gear shaft face changing process and before the gear shaft is about to collide, the reverse torque is applied to quickly lower the rotating speed, the rotating speed during collision can be reduced to the target rotating speed, therefore, the situations of vehicle shaking and tooth knocking noise caused by gear shaft face changing are reduced, and motor torque zero-crossing control is optimized.

The present application relates to the technical field of speed reducer, especially to a hollow composite planetary speed reducer, which comprises a machine shell, an input shaft rotatably connected to the machine shell, a sun gear fixedly connected to the input shaft, an outer gear ring installed in the machine shell, three planetary gears meshing between the outer gear ring and the sun gear, a planetary carrier rotatably connected to the three planetary gears, a worm fixedly connected to the planetary carrier, a rotating shaft rotatably connected to the machine shell, a worm wheel meshing with the worm and fixedly connected to the rotating shaft, and an output shaft rotatably connected to the rotating shaft. The present application combines the planetary speed reducer with the worm and worm gear speed reducer to form a composite speed reducer, which solves the self-locking defect of the planetary speed reducer and the low efficiency problem of the worm and worm gear speed reducer, and realizes secondary speed reduction, thereby increasing the transmission ratio and reducing the overall size of the device, improving the working efficiency and safety of the speed reducer.

The invention discloses a compatible system for an MT test bench to adapt to an AT transmission and a test method, and belongs to the technical field of transmission test. The system comprises a driving motor base translation mechanism, a driving motor, a simulation crankshaft, a 6-to-8 adapter flange, a tested AT transmission, an oil pressure collection box, an engine oil external circulation device and the like. Mechanical adaptation is achieved through a 6-to-8 adapter flange and an I-shaped telescopic transmission shaft, a gear box can be switched between a constant speed mode and a speed reduction mode to adapt to different gears, a motor base translation mechanism is driven to adjust the coaxiality, and the oil temperature is controlled to be 105 + / -5 DEG C through an engine oil outer circulation device; the test method comprises the steps of preprocessing, assembly connection, initialization setting, test operation, monitoring recording and resetting, tests comprise a running-in test and a fixed gear durability test, oil pressure data are transmitted in two paths, and automatic shutdown is carried out when abnormity occurs. By transforming the idle MT rack, AT transmission test compatibility is achieved, and the advantages of improving the resource utilization rate, reducing the cost, enhancing the test adaptability and reliability and the like are remarkable.

The utility model discloses an aircraft engine on-wing test field flow guide wall with a double-layer structure, which comprises an outer wall body and an inner wall body which are arranged in parallel and obliquely, and a plurality of flow guide units are arranged on the outer wall body and the inner wall body. High-speed wake flow impacted on the inner wall body can be guided downwards and subjected to first-time speed reduction, the outer wall body can continue to guide airflow penetrating through the inner wall body downwards and carry out second-time speed reduction, and the high-speed wake flow generated during full stress application of an aircraft engine is guided downwards and decelerated twice in sequence. It can be ensured that airflow conducted to the outer side of the outer wall body is located in a low-height area and keeps a low flow speed, the safety distance behind the flow guide wall is shortened, and space is saved; by arranging the first sliding grooves and the second sliding grooves, proper adjustment can be conveniently made according to different inclination angles of the wall body, deformation and movement spaces are reserved for the mounting plate, the supporting rods and the reinforcing beams when the mounting plate, the supporting rods and the reinforcing beams are stressed, breakage or damage of all structural parts is avoided and relieved, and the stability of the inner wall body and the outer wall body is ensured.

A lane hazard mitigation algorithm includes a sensor for detecting a first hazard in a host road lane and a second hazard in an adjacent road lane, a processor for determining a host lane mitigation including a host lane speed reduction in response to the first hazard and an adjacent lane mitigation including an adjacent lane speed reduction in response to the second hazard, the processor being further configured to generate a lane change control signal in response to the adjacent lane speed reduction being less than the host lane speed reduction and to generate a vehicle speed reduction control signal in response to the host lane speed reduction being less than the adjacent lane speed reduction, and a vehicle controller for controlling a host vehicle in response to the lane change control signal and the vehicle speed reduction control signal.

The utility model discloses a speed reduction motor with an explosion-proof structure, which comprises a base, an explosion-proof shell, a speed reduction motor body, a sealing sleeve and a shaft sleeve, the explosion-proof shell is fixed at the top end of the base, a round hole is arranged on the outer wall of one side of the explosion-proof shell, a bearing is arranged in the round hole, and the shaft sleeve is arranged in the shaft sleeve. The sealing sleeve is fixed on the outer wall of the explosion-proof shell at the position of the round hole, the shaft sleeve is arranged on one side of the sealing sleeve, the shaft sleeve and the sealing sleeve are tightly nested, a cold water cavity is formed in the side wall of the explosion-proof shell, the gear motor body is installed in the explosion-proof shell, and a rotating shaft is installed at one end of the gear motor body; one end of the rotating shaft sequentially penetrates through the bearing, the sealing sleeve and the shaft sleeve, a water tank is arranged on one side of the base, and a first cavity and a second cavity are formed in the water tank. The explosion-proof LED lamp not only has an explosion-proof function and is good in sealing performance, but also is good in heat dissipation effect.