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90 results about "Turning action" patented technology

Cooperative steering control method considering man-machine mutual reliability

The invention discloses a cooperative steering control method considering man-machine mutual reliability, and aims to solve the problem of man-machine conflict in an existing man-machine co-driving system. The invention relates to the field of intelligent driving. The system specifically comprises an expected path module, a man-machine steering conflict evaluation module, a driver experience evaluation module, a weight distribution module, a non-cooperative game module and a man-machine co-driving vehicle. The expected path module generates an expected path between the driver and the controller; the man-machine steering conflict evaluation module outputs the trust degree of the driver to the controller based on the steering action of the driver, the vehicle state and the expected path of the driver and the controller; the driver experience evaluation module outputs the driver trust degree of the controller based on the vehicle state; the weight distribution module is used for outputting a driver control weight; and the non-cooperative game module outputs an optimal turning angle in combination with the expected path of the driver and the controller and the control weight of the driver, and controls the man-machine co-driving vehicle to complete the cooperative steering action.
Owner:CHANGCHUN UNIV OF TECH

A cooperative steering control method considering human-machine trust degree

The application discloses a cooperative steering control method considering human-machine trust degree, and aims at solving the human-machine conflict problem in the existing human-machine co-driving system. The application relates to the field of intelligent driving. Specifically, the application comprises an expected path module, a human-machine steering conflict evaluation module, a driver experience evaluation module, a weight distribution module, a non-cooperative game module and a human-machine co-driving vehicle. The expected path module generates the expected paths of the driver and the controller; the human-machine steering conflict evaluation module outputs the trust degree of the driver to the controller based on the steering action of the driver, the vehicle state and the expected paths of the driver and the controller; the driver experience evaluation module outputs the trust degree of the controller to the driver based on the vehicle state; the weight distribution module is used for outputting the driver control weight; and the non-cooperative game module combines the expected paths of the driver and the controller and the driver control weight to output the optimal steering angle, so as to control the human-machine co-driving vehicle to complete the cooperative steering action.
Owner:CHANGCHUN UNIV OF TECH

Self-balancing control method applied to heteroaxial two-wheel vehicle

The invention discloses a self-balancing control method applied to a heteroaxial two-wheeled vehicle, the vehicle carries a scissor-type double CMG module, the module comprises two CMG units, and the method comprises hardware decoupling: using the scissor-type double CMG to counteract course disturbance torque generated when the CMG works on a physical level; role separation: redefining a CMG system and a steering system; feedforward coordination: during turning, not depending on the CMG always generating a restoring moment to maintain a 0-degree inclination angle, calculating a steady-state inclination angle (phi lean) required at the speed and the steering angle through a dynamic model feedforward; and track planning: by coordinating track planning, it is ensured that the inclination action of the CMG and the steering action of the steering are perfectly synchronized in time, and balance is dynamically maintained. The problem of CMG saturation is solved, high-precision decoupling control is achieved, turning is smooth and safe, full-speed-domain coverage is achieved, and efficiency and energy saving are achieved.
Owner:ZHEJIANG UNIV +1

An axle steering mechanism testing device and testing method

The application relates to a vehicle axle steering mechanism test device, which comprises a vertical loading module of a to-be-tested vehicle axle, a steering driving module, and a torque loading module. The vertical loading module is arranged on the to-be-tested vehicle axle and is used for applying a vertical load to the to-be-tested vehicle axle. The output end of the steering driving module is connected with a steering knuckle arm of the to-be-tested vehicle axle and is used for driving the to-be-tested vehicle axle to perform a steering action. The torque loading module is respectively connected with two wheel edge output ends of the to-be-tested vehicle axle and comprises a universal connecting unit and a torque loading unit. The universal connecting unit is used for providing multi-degree-of-freedom constraint. The torque loading unit is used for loading torque. The application innovatively constructs a highly integrated, multi-axis linkage comprehensive test bench. The modules can effectively simulate the actual stress of the vehicle axle when the vehicle turns or goes uphill during testing through mutual cooperation, effectively solve the problem that the existing test bench has single function and cannot simulate a composite working condition, improve the efficiency and convenience of performance and durability testing, and fill the industry gap.
Owner:XIANGYANG DAAN AUTOMOBILE TEST CENT

Paddy field light chassis space six-connecting-rod steering trapezoid control system and method based on kingpin inclination angle

The invention relates to a paddy field light chassis space six-connecting-rod steering trapezoidal control system and method based on a kingpin inclination angle. The system comprises a paddy field light chassis, a steering trapezoidal control system and a steering trapezoidal control system, wherein the paddy field light chassis is used for mounting a paddy field agricultural implement; the space six-connecting-rod steering trapezoid is arranged below the front end of the paddy field light chassis and used for steering the paddy field light chassis; the electronic gyroscope is arranged in front of the space six-connecting-rod steering trapezoid and used for measuring main pin inclination angle data and inner and outer steering wheel rotation angle data; the vehicle-mounted embedded microcontroller is arranged on the light chassis of the paddy field, is respectively connected with a steering wheel and an electronic gyroscope which are arranged on the light chassis of the paddy field, and is used for turning the electronic gyroscope after receiving a steering command of the steering wheel; according to the main pin inclination angle data and the steering wheel steering input data collected in real time, the steering angle is calculated according to the steering trapezoid two-dimensional kinematics control model, and then the steering angle is sent to the space six-connecting-rod steering trapezoid to conduct steering action, the sideslip phenomenon in paddy field operation is effectively restrained, and the operation precision of agricultural implements is guaranteed.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY

A mechanical steering system designed to prevent abnormal noise.

This utility model discloses a mechanical steering gear for preventing abnormal noise. This utility model relates to the field of automotive parts technology. The mechanical steering gear for preventing abnormal noise includes a housing mechanism. The main body of the housing mechanism is a box structure with a one-way opening at the top. A positioning rod is fixedly connected inside the housing mechanism. The positioning rod is arranged longitudinally. This utility model effectively prevents dust from entering the interior through multiple sealing protections of components such as the housing mechanism, cover mechanism, insert plate assembly, plunger, and its sealing ring. This reduces wear caused by dust friction between the rack assembly and gear assembly, thereby reducing the possibility of abnormal noise. The reasonable design of components such as the positioning rod, connecting plate, and positioning pin ensures stable power transmission from the input shaft to the output rod, making tire steering reliable. On the other hand, the good sealing structure reduces component wear and extends the service life of the steering gear.
Owner:HUNAN BOSHUO TECHNOLOGY CO LTD

Vehicles and their steering control methods and devices

This invention provides a vehicle and its steering control method and apparatus, relating to the field of vehicle steering system technology. When detecting the steering intention represented by the steering control signal, this invention simultaneously collects real-time vehicle operating data and the operating status data of each steering system. It comprehensively calculates the total steering demand parameters of the vehicle in the corresponding driving scenario and the steering allocation parameters of each steering system based on its actual working capacity, enabling multiple steering systems to collaboratively execute steering actions according to their own true capabilities. When any steering system malfunctions, the system capable of performing steering can be quickly determined based on the real-time operating status, ensuring that there is always a steering system to perform the steering action, making steering continuous and uninterrupted, and maintaining stable and uninterrupted function. While ensuring vehicle steering smoothness and control precision, this invention also possesses reliable steering fault redundancy capabilities, effectively improving the reliability of vehicle steering control and driving safety.
Owner:CHERY AUTOMOBILE CO LTD

millimeter wave radar

1. The name of the design product: millimeter wave radar. 2. The use of the design product: for automatic driving vehicles to detect obstacles in front to make corresponding braking, deceleration or turning actions. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.
Owner:WUHAN FUTURE MIRAGE TECH CO LTD

Steering control method and device of drive-by-wire chassis, vehicle and storage medium

The invention relates to the technical field of vehicle steering control, in particular to a steering control method and device for a drive-by-wire chassis, a vehicle and a storage medium. The method comprises the steps that vehicle information, road condition information and user information of a driver and passengers are collected, and then a corresponding driving scene is matched; and judging whether the current steering of the vehicle meets the safety condition corresponding to the driving scene or not, so that when the safety condition is not met, safety warning is performed, and the safe steering angle of the vehicle is generated, and when the current steering is larger than the safe steering angle, the vehicle is limited to execute the current steering action while pacifying reminding is generated, so that the current steering is adjusted. Therefore, the problems that in the prior art, due to the fact that a related technology depends on direct control over a vehicle driving component, forcibly switches a driving mode or intervenes manual steering operation and only focuses on vehicle and road condition information, manual driving dominance and continuity are damaged, non-technical over-steering cannot be pre-judged, human risks are difficult to avoid, and personnel safety is difficult to guarantee are solved.
Owner:CHINA FAW CO LTD

Anti-rollover control method for a stacker, electronic device, storage medium, and program product

The application provides a stacking machine anti-rollover control method, an electronic device, a storage medium and a program product. The method comprises the following steps: acquiring an operating state parameter of a vehicle, and calculating a center of mass position of the vehicle based on the operating state parameter; wherein the state parameter comprises a load weight and a load height; based on the center of mass position, a driving speed and a tire angle, calculating a rollover torque generated when the vehicle turns and a stable torque resisting rollover; when a steering action is detected, comparing the rollover torque with the stable torque; if the rollover torque is greater than or equal to the stable torque, dynamically limiting the hydraulic flow of a steering oil cylinder according to the current driving speed; based on the current tire angle, the center of mass height and the wheelbase of the vehicle, calculating a maximum allowable driving speed, and when the current driving speed is greater than the maximum allowable driving speed, controlling the driving motor to brake so that the vehicle is slowed down to not exceed the maximum allowable driving speed.
Owner:SANY MARINE HEAVY INDUSTRY CO LTD

Offline-capable, AI-supported, all-round monitoring and control system with starter chip card

AI-supported all-round camera system for real-time display of the vehicle's surroundings on a screen, where the vehicle contours, axles, wheels and steering movements are visually represented 1:1.
Owner:HOGL PETER GEORG

Performance test system for nose landing gear

The invention discloses a nose landing gear performance testing system, which relates to the field of aircraft testing and comprises an upper computer, a lower computer PLC (Programmable Logic Controller) and a hydraulic control module, the upper computer is used for sending the take-up and pay-off speed curve and the angle displacement value to the lower computer PLC; the hydraulic control module comprises an oil source module, an angular displacement sensor and a proportional reversing valve; the angular displacement sensor is used for acquiring the rotation angles of the turning actuating cylinder and the retracting and releasing actuating cylinder, determining the variable quantity of the flow of the corresponding actuating cylinder according to the rotation angles, and converting the variable quantity into an angular displacement value; the lower computer PLC is used for converting the winding and unwinding speed curve and the angle displacement value into an angle control signal and adjusting the angle control signal according to the angle displacement value of the angular displacement sensor; the proportional reversing valve is used for adjusting the proportional angle when receiving the angle control signal so as to control the flow of the retracting and releasing actuator cylinder, the left turning actuator cylinder and the right turning actuator cylinder, and the retracting and releasing action, the left turning action or the right turning action of the nose landing gear at different speeds are carried out.
Owner:XIAN AERONAUTICAL POLYTECHNIC INST

Redundant backup steer-by-wire control system, control method and vehicle

The invention relates to the technical field of vehicles, and discloses a redundant backup steer-by-wire control system and method and a vehicle. The system comprises a main road communication assembly and an auxiliary road communication assembly; the main path communication assembly comprises an upper-layer main controller, a middle-layer main controller and a lower-layer main controller, the upper-layer main controller is in communication connection with the middle-layer main controller, the middle-layer main controller is in communication connection with the lower-layer main controller, and the upper-layer main controller is used for determining a target steering angle for a target vehicle; the middle-layer main controller is used for generating a control steering angle for wheels of the target vehicle according to the target steering angle, and the lower-layer main controller is used for controlling the wheels to execute a target steering action according to the control steering angle; the auxiliary road communication assembly comprises an upper-layer auxiliary controller, a middle-layer auxiliary controller and a lower-layer auxiliary controller, the upper-layer auxiliary controller is in communication connection with the middle-layer auxiliary controller, and the middle-layer auxiliary controller is in communication connection with the lower-layer auxiliary controller.
Owner:ZHEJIANG GEELY HLDG GRP CO LTD +1

Method for operating a motor vehicle and motor vehicle

The present invention relates to a method for operating a motor vehicle (1), wherein the motor vehicle (1) has a lighting device (4) comprising at least two headlight devices (5, 6, 15, 16), wherein the headlight devices (5, 6, 15, 16) are arranged horizontally staggered on the front side (7) of the motor vehicle (1) and each has one or more dimmable light-emitting devices (8), wherein each headlight device (5, 6, 15, 16) can illuminate a spatial area (18, 19, 29, 30) in front of the motor vehicle (1) covering a horizontal angle range (20, 21, 32, 33) according to the brightness generated by the corresponding one or more light-emitting devices (8), wherein the illumination is effective before or during the reversing of the motor vehicle (1). The brightness of one or more light-emitting elements (8) of at least one of the headlight devices (5, 6, 15, 16) is adjusted according to the steering action of the motor vehicle (1), wherein, when using the headlight device (5, 6, 15, 16) comprising multiple light-emitting elements (8), the light-emitting elements (8) are adjusted such that at least one sub-region (22-27) of the spatial region (18, 19, 29, 30) opposite to the direction of steering action is illuminated with increased brightness, and / or wherein, when using the headlight device (5, 6, 15, 16) comprising at least one light-emitting element (8), the brightness of at least one light-emitting element (8) of the headlight device (5, 6, 15, 16) arranged in the direction of steering action is dimmed.
Owner:AUDI AG

Sliding table type self-resetting direction detection mechanism and electric riding moving device

The invention discloses a sliding table type self-resetting direction detection mechanism, which comprises a handle, a sliding table type self-resetting mechanism, a front-back sensor, a left-right sensor, a rotating shaft and a second self-resetting mechanism, and is characterized in that the sliding table type self-resetting mechanism is used for detecting forward and backward direction signals, and the second self-resetting mechanism is used for detecting left-right steering signals. According to the sliding table type self-resetting direction detection mechanism, through the cooperation of the sliding table type self-resetting mechanism and the second self-resetting mechanism, the front-back push-pull and left-right steering actions of the handle can be accurately captured.
Owner:DALIAN ZHIXING POWER TECH CO LTD

Three-way crawler-type three-way forklift system

The invention aims to solve the technical problems of poor operation stability, low working efficiency, low environment adaptability and low bearing performance in the prior art, and provides a three-way crawler-type three-way forklift system. Comprising a control module, a crawler walking module, a steering execution module, an operation execution module and a safety detection module. The control module is electrically connected with the crawler walking module, the steering execution module and the safety detection module, is provided with an anti-rollover model, a hydraulic synchronous control model and a differential steering model, and is used for instruction issuing and state coordination; the crawler walking module is used for driving the forklift to move forwards, backwards or steer; the steering execution module is used for controlling the operation execution module to perform steering, transverse moving and lifting actions; the operation execution module is used for bearing, taking and placing goods; the safety detection module is used for monitoring forklift operation state information and operation execution module state information and feeding back the information to the control module for state coordination work.
Owner:XIAN AEROSPACE SAINENG AUTOMATION TECH CO LTD

Soil greenhouse gas emission flux detection experiment system

The invention belongs to the technical field of greenhouse gas detection, and particularly relates to a soil greenhouse gas emission flux detection experiment system, which drives a casing pipe to move up and down along a main shaft through an adjusting assembly, and drives a soil turning assembly to lift synchronously, so as to adjust the soil turning depth; during soil turning operation, the first motor drives the spindle to rotate, on one hand, the spindle drives the sleeve and the soil turning assembly to revolve around the axis of the spindle through the first transmission assembly, on the other hand, the soil turning assembly is driven to rotate through the second transmission assembly, and therefore the soil turning action is achieved. Through a lifting adjusting mechanism of the sleeve, the defect that the depth of a material turning claw is fixed in the prior art is overcome, the soil turning depth can be flexibly and accurately set according to different plant root system depths and experiment requirements, the plant root systems are effectively prevented from being damaged due to too deep soil turning, it is ensured that a soil conditioner can be evenly mixed with soil of the target depth, and the soil turning efficiency is improved. The adaptability of the experiment system and the accuracy and reliability of the detection result are greatly improved.
Owner:LANZHOU UNIV

Improved turning-over device for geriatric care

This invention discloses an improved geriatric nursing turning device, belonging to the field of medical device technology. It includes a support frame, with rectangular frames connected to both ends. Each rectangular frame has a support base connected to both sides of its lower end. Through the synchronous linkage design of the turning component and the side-lying support component, the turning action and cushioning support are coordinated. The turning board rotates gradually under the drive of a first drive motor, while the support plate of the side-lying support component rotates synchronously through a rotating component, forming a cushioning support angle that conforms to the patient's body. This effectively alleviates the impact of sudden changes in the center of gravity during turning, avoiding traction pain or fracture risks in elderly patients due to osteoporosis and joint degeneration. Furthermore, the cushioning pad added to the surface of the turning board further reduces skin friction and local pressure concentration. Combined with the limiting effect of the L-shaped guardrail, it prevents the patient from sliding and shifting during turning, significantly improving operational safety.
Owner:GENERAL HOSPITAL OF THE NORTHERN WAR ZONE OF THE CHINESE PEOPLES LIBERATION ARMY

High-efficiency automatic box-turning conveying device for condiments

ActiveCN224298207UPackagingConveyor partsFlexural torsionalStructural engineering
The utility model discloses a high -efficient automatic box -turning conveying device for condiment, include: the box -turning conveying frame, the box -turning conveying frame end portion is equipped with five places angle difference and forms the L type box -turning support of the automatic box -turning action of box in conveying in proper order from left to right, the round steel guide rail turnover part of automatic overturning action of box conveying stroke track between every L type box -turning support, through the coordinated design of double guide round steel bending torsion track and five -stage gradient L type box -turning support (15 degree 75 degree), realized full -automatic gradual box -turning. With physical track guide instead of mechanical arm forced overturning, eliminate the defect of traditional device angle single, rely on artificial regulation, adapt to different box specifications and filling capacity, gradual center of gravity deviation design avoids material leakage, in combination with the guidance restraint of double guide rail, make overturning action coherent accurate, significantly improve production continuity.
Owner:HE SHAN SHI DONG GU DIAO WEI PIN YOU XIAN GONG SI

Special vehicle automatic driving system based on multi-scene intelligent scheduling and control method thereof

The invention discloses a special vehicle automatic driving system based on multi-scene intelligent scheduling and a control method thereof, and relates to the technical field of intelligent driving. The system comprises a scene management module, an execution management module, a state management module, a control module and an operating system layer. The scene management module identifies four driving scenes of manual driving, calling, parking and charging and following and loads a matching component; the state management module collects and feeds back vehicle real-time state data; the execution management module coordinates component interaction, manages task priority and triggers safety interruption; and the control module executes acceleration, deceleration and steering actions. The control method comprises the five steps of scene recognition loading, state synchronous detection, task scheduling decision making, action execution and feedback closed loop. The problems that an existing system is single in scene, complex in control and insufficient in safety are solved, multi-scene intelligent switching and unified management are achieved, the system is suitable for low-speed special vehicles such as scooters for old people, and safety and intelligence are improved.
Owner:上海复运智能科技有限公司

Dual-drive electric differential steering control system, control method and vehicle

The application discloses a double-drive electric differential steering control system, a control method and a vehicle, which comprises a double-drive motor and a double-drive wheel edge unit assembly, the double-drive motor is directly connected with the double-drive wheel edge unit assembly for power transmission, further comprises a steering assembly, a steering bridge assembly, an electric control assembly and a rotation angle potentiometer; the rotation angle potentiometer is installed on the steering assembly and the steering bridge assembly respectively, and is used for monitoring a steering input signal A of the steering assembly and a steering output signal B of the steering bridge assembly; the electric control assembly collects the steering input signal A of the steering assembly and / or the steering output signal B of the steering bridge assembly, analyzes steering demand, outputs a differential demand or a reverse signal to the double-drive motor, and realizes active differential function and reverse driving function of the double-drive motor. The application can avoid or reduce errors of a single steering signal to a steering system, make the steering system more sensitive to steering action, remind a user in an abnormal situation, and improve vehicle maintenance efficiency.
Owner:XUZHOU XUGONG SPECIAL CONSTR MASCH CO LTD

Operating unit for a motor vehicle steer-by-wire system

PendingCN122501441AMagnetoActuator
The present application relates to a kind of operating units for motor vehicle steer-by-wire system, it can be connected with steering device, so that the steering action of steering device is converted into the signal representing the steering action, and is transmitted to wheel executor, to realize the execution of steering action by the wheel of motor vehicle, wherein operating unit has telescopic slide-out mechanism, including telescopic carrier and telescopic slider linearly movable relative to telescopic carrier, wherein steering shaft is rotatably mounted in and / or on telescopic slider, and in telescopic slider is provided with corner limiter and with electrically energizable power feedback executor with electrically energizable motor and electrically energizable brake, wherein brake is designed as magneto-rheological brake, its maximum heating power is at most 1 / 5 of the maximum heating power of motor, and motor is arranged in the area of telescopic slider away from the end of steering device.
Owner:SCHAEFFLER TECHNOLOGIES AG & CO KG

Information display method and device, electronic equipment and readable storage medium

Embodiments of the present application disclose an information display method and device, electronic equipment and readable storage medium. After determining that the road section type of the road section where the vehicle is located is a two-way single lane, the driving action of the vehicle is detected, and after detecting that the vehicle starts to perform a U-turn action, the positioning mark of the vehicle in the map page is bound to the road according to the sequence of arc-shaped point positions until the vehicle ends the U-turn action. Embodiments of the present application can simulate the U-turn process of the vehicle on the two-way single lane based on the sequence of arc-shaped point positions to realize the binding of the positioning mark of the vehicle to the road in the map, thereby avoiding the problem of delay and lag of the positioning mark of the vehicle in the map due to the U-turn, improving the trajectory accuracy of the positioning mark in the map, making the positioning mark close to the actual vehicle motion state, improving the steering fluency of the positioning mark, and further improving the user experience.
Owner:DITU (BEIJING) TECH CO LTD

Pipe bending machine for ship building and repairing and machining method

The invention provides a pipe bending machine for ship repairing and manufacturing and a machining method, relates to the technical field of ship repairing and manufacturing, and aims to solve the technical problems of low efficiency and poor stability of a bent pipe springback compensation mode in the prior art. A pipe bending machine for ship building and repairing comprises a machine body, a feeding rotating module, a bending module, a vision measuring module and a control module, when the current loading angle of a pipeline is close to the target bending angle, a bending assembly of the bending module executes micro force unloading operation, and pipeline stress is locally released; based on bending angle data collected by the vision measurement module before and after micro-unloading, the control module can dynamically generate a springback compensation instruction, finally the bending module is driven to execute an accurate turning action, self-adaptive dynamic compensation can be carried out aiming at a remarkable springback phenomenon in bending of a large-pipe-diameter and high-strength pipeline, and the working efficiency is improved. Therefore, the bending forming precision and the first-pass yield are greatly improved; the invention further relates to a machining method of the pipe bending machine for ship building and repairing.
Owner:ZHOUSHAN NINGXING SHIPBUILDING CO LTD

AGV (Automatic Guided Vehicle) heavy-load chassis structure based on connecting rod

The AGV heavy load chassis structure based on the connecting rods comprises a chassis frame and a driving installation plate, the chassis frame is connected with the driving installation plate through a first connecting assembly, and a connecting bridge and a third connecting assembly used for connecting the connecting bridge are integrated on the inner surface wall of the chassis frame. According to the steering mechanism, the driving motor drives the wheels to rotate by driving the mounting plate, the steering action is achieved through linkage of the connecting rod mechanism, the complexity of a traditional steering mechanism is reduced, and when encountering an obstacle, the connecting rod mechanism allows the wheels to move in the vertical direction, absorb impact force and protect a vehicle body and goods; through mechanical dispersion, integrated design and dynamic balance compensation, the problems that a traditional AGV is insufficient in bearing capacity, complex in maintenance, poor in adaptability and the like in a heavy load scene are solved. The core advantage is that mechanical linkage is used for replacing traditional hydraulic / electrical control, performance is improved, cost and energy consumption are reduced, and the device is especially suitable for high-intensity operation scenes such as industrial automation and warehouse logistics.
Owner:WUXI HUAYUN CHUANGZHI ROBOT CO LTD

Multifunctional machine tool for machining sheet metal parts

The invention belongs to the technical field of machine tool machining, and discloses a multifunctional machine tool for machining sheet metal parts, which comprises a machining platform, supporting nails are arranged on the front and back surfaces of the machining platform, and the working surfaces of the supporting nails on the two surfaces are switched by turning over the machining platform integrally or partially by 180 degrees; when the use of the supporting nails on one side is affected by slag attachment, abrasion or chip accumulation, the supporting nails on the other side are switched to continue working, and meanwhile the overturning action is used for assisting in dumping of residual waste materials. A traditional fixed nail array is reconstructed to be composed of a plurality of linearly-arranged supporting rows, and each row is installed on a base through a sliding base and driven by a ball screw or a gear rack to achieve independent or synchronous translation. By means of the design, the supporting density can be dynamically adjusted according to the workpiece size, thickness and hole position distribution. For example, a support is densified at the edge of the thin plate to inhibit warpage, and gaps are enlarged in the porous area to facilitate waste falling.
Owner:GUANGZHOU JIUHONG HARDWARE CO LTD

Steering control device

The invention relates to a steering control device. A steering control device (50) controls a motor (21) that drives a steering device (10) that steers steered wheels (12) of a vehicle. A steering control device (50) executes feedback control in which an actual angle ([theta] p) of a shaft (23), which rotates in conjunction with a steering operation of a steered wheel (12), follows a target rotation angle ([theta] pmid *), and controls the steering of the steered wheel (12) on the basis of a state variable ([theta] pmid *) of the vehicle. An estimated value (zeta) of a human motion index indicating a human motion that affects riding comfort or discomfort of an occupant of a vehicle is calculated, whether or not the human motion index (zeta) reaches a degree to be suppressed is determined on the basis of the estimated value (zeta) of the human motion index, and when it is determined that the human motion index reaches the degree to be suppressed, the estimated value (zeta) of the human motion index is calculated. The target rotation angle ([theta] pmid *) is corrected so as to suppress a human motion index.
Owner:JTEKT CORP

Unmanned mining dump truck with electric wheels and four-wheel hydraulic steering system

The utility model discloses a four-wheel hydraulic steering system which comprises a first electro-hydraulic steering gear, a first flow amplifier, a front axle left steering cylinder, a front axle right steering cylinder, a steering valve set, a plunger pump and a hydraulic oil tank. The plunger pump is used for generating pressure oil and providing pressure and flow for hydraulic oil of the system; the steering valve set is used for providing pressure oil for the first flow amplifier, the first flow amplifier is used for controlling the front axle steering cylinder to act, the first electro-hydraulic steering gear is used for providing pilot control oil for the first flow amplifier, and the front axle steering cylinder serves as an execution device and is used for driving a front wheel steering mechanism of a vehicle to complete steering. The hydraulic oil tank is used for storing hydraulic oil. The utility model further discloses the unmanned mining dump truck with the electric wheels. The two flow amplifiers are controlled through the two electro-hydraulic steering gears to achieve steering actions of the front steering cylinder and the rear steering cylinder, and the steering requirement of two-way driving is met.
Owner:INNER MONGOLIA NORTH HAULER

A vehicle and its suspension structure

This invention discloses a vehicle and its suspension structure, including a front axle suspension and a rear axle suspension. At least one of the front and rear axle suspensions includes a steering suspension symmetrically arranged on the left and right sides of the vehicle body. The steering suspension includes a steering column, a steering rod assembly, and an anti-roll bar assembly. The steering rod assembly connects the steering column to the vehicle body to adapt to the steering action of the wheels. The anti-roll bar assembly connects the steering column to the vehicle body and includes a sway bar, an elastic connector, an offset link, and a push-pull rod, used to adaptively tilt the vehicle body towards the inside of the curve when the vehicle is turning. This suspension structure not only reduces the height of the vehicle's center of gravity relative to the wheel's travel reference plane when the vehicle is turning, but also reduces the wheel track distance of the wheel on the side away from the turning center relative to the vehicle's center of gravity, thereby improving the suspension structure's anti-roll capability. Furthermore, it eliminates the need for an active anti-roll suspension such as an anti-roll electronic system, significantly reducing cost and energy consumption.
Owner:JINGWEI HIRAIN (TIANJIN) RES&DEV CO LTD