Abstract: A method for manufacturing a seat for measuring a standard driving posture of a human body includes: performing three-dimensional scanning on an auxiliary device to acquire a first point cloud data set; constructing N seat curves according to the plurality of groups of displacement data sets; correspondingly processing the N seat curves and the first point cloud data set to delete the point cloud data above the seat curves so as to obtain a second point cloud data set; and performing inverse modeling on the second point cloud data set to obtain a rigid seat model for manufacturing a rigid seat. The rigid seat manufactured through the method facilitates putting a dummy in a standard driving posture and also can avoid the problem that key sizes of the dummy are not correctly measured due to deformation of the seat surface.

Abstract: A charger, comprising a controller, an alternating-current-side capacitor assembly, a power factor correction circuit, a bus capacitor assembly, and a DC-DC converter. The bus capacitor assembly comprises a first capacitor and a second capacitor. The alternating-current-side capacitor assembly is connected to both the first capacitor and the second capacitor. When the charger is in a single-phase alternating-current charging mode, the controller is used to dynamically adjust an on-duty ratio of a high-frequency bridge arm of the power factor correction circuit according to the voltage of an alternating current, so as to discharge the voltage of the alternating-current-side capacitor assembly, perform power factor correction on the alternating current, and input a direct current outputted from the power factor correction circuit to the DC-DC converter. Also provided are a charger control method and a vehicle.

Abstract: A method for controlling a charger is provided. The charger is an on-board charger or a charging pile charger, and includes an LLC circuit that is connected to a battery. The method includes: determining a target working mode of an LLC circuit according to a first voltage of a battery, the target working mode being a full-bridge mode or a half-bridge mode; and controlling the LLC circuit to work according to the target working mode.

Abstract: A method for controlling a charger, includes: determining a target current value on an alternating-current side, according to a present voltage and a steady-state target current on the alternating-current side of the charger; calibrating the target current value by a current calibration amount on the alternating-current side to obtain a calibrated target current value; and controlling a current on the alternating-current side, according to the calibrated target current value, the present voltage, a present current on the alternating-current side, and a voltage of a bus capacitor, to follow the calibrated target current value. The charger comprises an on-board charger or a charging pile charger.

Abstract: A skin manufacturing post-treatment method for an automobile collision dummy includes: forming a first pouring portion on a skin layer to be treated, and forming a patching recess by grinding the first pouring portion; obtaining an epidermis layer to be treated, and arranging a heating assembly above the patching recess, where the heating assembly is attached to an interior of the patching recess, and the epidermis layer; and simultaneously heating, by the heating assembly, the patching recess and the epidermis layer to be treated. In this way, the epidermis layer to be treated and an inner wall of the patching recess can be simultaneously heated at the first preset temperature, the epidermis layer to be treated and the inner wall of the patching recess are consistent in temperature, and a connection strength between the epidermis layer to be treated and the inner wall of the patching recess is enhanced.

Abstract: A skin manufacturing post-treatment device for an automobile collision dummy device includes a post-treatment mechanism, where the post-treatment mechanism includes a rotary operation table that is provided with a cutting station, a grinding station, a skin patching station and a removal station in a circumferential direction; the cutting station is configured to cut an injection molding residual material on a surface of a dummy skin, and the grinding station is configured to grind a cut position to form a frustum-shaped patching recess; and the skin patching station is configured to fill the patching recess with a welding skin patching material, and the removal station is configured to clean a skin patching position.

Abstract: A method for predicting dummy head injury during an automobile collision includes: enabling a dummy head to collide with a rigid flat plate; obtaining a first data set in a collision process; calculating the maximum contact force of the dummy head and the rigid flat plate in the collision process according to the first data set; dividing a duration of the collision process into a plurality of time intervals; and calculating an injury value of the dummy head in each time interval according to the maximum contact force, and selecting the maximum injury value as a target injury value. The method provided by the present application may realize prediction for the head injury under different scene working conditions, and has the advantages of being simple in test flow, and high in prediction precision.

Abstract: A one-time injection molding preparation method to imitate human bone samples is proposed, and a material database and a bone simulation model library are established that can effectively determine materials and the design process through the finite element method. In the polymer thermoplastic material, the filler with a higher density than the polymer material is first added, After granulation, it is mixed with a foaming agent or a filler with a lower density than the polymer thermoplastic materials. A human bone-like sample is obtained through one-time injection molding technology. This method saves experimental and labor costs and can be produced with traditional processing equipment. The sample is close to the density, hardness, and strength of real human bones, and is more consistent with the morphology and properties of real human bones than samples composed of multiple materials.

Abstract: Provided are a cleaning device and a control method, a cleaning device and a detection apparatus. The cleaning device includes a device body, which includes a cleaning module acting on an object to be cleaned (M); a humidity detection mechanism provided in the device body and in contact with the object to be cleaned (M), to detect a humidity of the object to be cleaned (M); and a control module provided in the device body and connected to the humidity detection mechanism to perform control processing according to humidity data detected and obtained by the humidity detection mechanism. The humidity detection for the object to be cleaned (M) is realized.

Abstract: Provided in the present disclosure are a cleaning apparatus, a cleaning device, and a changeover valve assembly. The cleaning apparatus includes a main body, a vacuum motor and a heating air output assembly, where an axial direction of the vacuum motor is parallel to a forward direction of the main body, an air inlet end of the vacuum motor is arranged on one side of the vacuum motor facing the forward direction, and projections of the air inlet end of the vacuum motor and the heating air outlet assembly on a horizontal plane at least partially coincide, such that the efficiency of sewage recovery can be improved, and sewage residue in an area that is cleaned is thus reduced.

Abstract: Disclosed are a tool and a method for measuring a parallelism and coaxiality of a rotating shaft of shoulder joint of a crash dummy, relating to the technical field of vehicle safety crash testing dummies. The measuring tool and a method can efficiently and accurately measure the coaxiality and parallelism of the rotating shaft of shoulder joint of the crash dummy.

Abstract: Disclosed are a tool and a method for measuring a perpendicularity and an angle of a femur of a vehicle crash dummy. The tool includes: a base, where the base is provided with a guide ring gear; and a clamp assembly, where the clamp assembly is configured to clamp a femur part. A measurement assembly can measure the perpendicularity and the angle of the femur part conveniently.

Abstract: A method for measuring a relationship between crash dummy chest compression and a safety belt load, includes: controlling, when a dummy is fixed in a preset posture on a fixed bed in a test platform via a safety belt in a safety belt restraint apparatus, a chest cover plate in the test platform to move so as to maintain a preset relative position between the chest cover plate and the dummy; controlling an impact apparatus to pull the safety belt in each pulling force to be measured, and determining a target displacement value of each measuring point on the dummy and a target pulling force between the impact apparatus and the safety belt after a first preset duration; and determining a target pulling force-displacement curve corresponding to each measuring point according to each target displacement value and each target pulling force.

Abstract: Disclosed are a tool and a method for measuring a parallelism and an angle of a shank skeleton of a vehicle crash dummy. The tool includes: a fixation seat, where a magnetic fastener is arranged on the fixation seat and configured to mount a shank U-shaped member; and a movement assembly that is configured to drive a measurement assembly to move, so as to change a relative position of a measurement end of the measurement assembly and the shank U-shaped member. The condition that the measurement assembly directly comes into contact with the shank U-shaped member, and damages a surface of the shank U-shaped member is avoided while making an entire measurement process more convenient.

Abstract: The present invention relates to method and apparatus for recommending a charging station, the method includes: determining, based on personal preference information of a user of an electric vehicle, a specific area reachable by the electric vehicle and suitable for charging the electric vehicle, when receiving a request for searching for a charging station for the electric vehicle; recommending a suitable charging station located in the specific area to the electric vehicle for charging. A suitable charging station may be recommended to the electric vehicle for charging with the method and apparatus.

Abstract: A method and system for charging control, and a vehicle. The method includes: when a first end of a switching circuit is connected to external power supply, acquiring a phase voltage and a line voltage of any two-phase first terminals in M phases of first terminals; determining a power supply mode of the external power supply according to the phase voltage and the line voltage; and controlling the switching circuit and a charging circuit to charge a target battery according to the power supply mode.

Abstract: A method for impact test on a lower abdomen of a vehicle crash test dummy includes: controlling an arc-shaped hammer head to impact a lower abdomen of a preset dummy at a preset speed; obtaining displacements from a displacement sensor, wherein the displacements are generated by the lower abdomen of the preset dummy and the arc-shaped hammer head during the impact; obtaining a pressure from a pressure sensor, wherein the pressure is borne by the lower abdomen of the preset dummy during the impact; and determining, based on the displacements and the pressure, whether the preset dummy satisfies a biological simulation standard. The method is capable of testing whether the current dummy satisfies the biological simulation standard, so as to ensure the accuracy of test data in subsequent vehicle crash tests using the dummy.

Abstract: A method for calibrating a chest of a vehicle crash dummy, includes: controlling, under each preset test condition, a pressing apparatus to press down a chest of a target crash dummy with a target pressing speed and a target pressing distance corresponding to the preset test condition, obtaining an actual force-displacement curve under each preset test condition, obtaining a standard force-displacement curve of a chest of a standard crash dummy under each preset test condition, and determining, according to the actual force-displacement curve and the standard force-displacement curve under each preset test condition, whether the chest of the target crash dummy satisfies a biological simulation standard. Through collecting information under various preset test conditions, various complicated conditions of impact on the chest can be more effectively simulated in a crash test by using the method, which improves the accuracy of determining the biological simulation standard.

Abstract: A method for measuring a relationship between crash dummy chest compression and a safety belt load, includes: controlling, when a dummy is fixed in a preset posture on a fixed bed in a test platform via a safety belt in a safety belt restraint apparatus, a chest cover plate in the test platform to move so as to maintain a preset relative position between the chest cover plate and the dummy; controlling an impact apparatus to pull the safety belt in each pulling force to be measured, and determining a target displacement value of each measuring point on the dummy and a target pulling force between the impact apparatus and the safety belt after a first preset duration; and determining a target pulling force-displacement curve corresponding to each measuring point according to each target displacement value and each target pulling force.