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88results about How to "Reduce collision energy" patented technology

Automobile collision protection device

The invention discloses an automobile collision protection device. The automobile collision protection device comprises a base, a support plate, a telescoping mechanism and an energy absorption panel, wherein the base is fixedly arranged on a vehicle body; the support plate is connected with the base by the telescoping mechanism; the telescoping mechanism comprises two sliding plates, two first connecting rods and driving mechanisms; the two sliding plates are respectively arranged on the left side and the right side of a back plate surface of the support plate in a left-right sliding manner; the back ends of the two first connecting rods are respectively hinged to the left side and the right side of the base, and the front ends of the two first connecting rods are respectively hinged to the two sliding plates; the driving mechanisms are used for driving the two first connecting rods to swing so as to control the support plate to move back and forth; the energy absorption panel is connected with the front plate surface of the support plate by a plurality of energy absorption springs. According to the automobile collision protection device, the support plate and the energy absorption panel can actively extend forwards by virtue of the telescopic mechanism to expand a collision buffering area of an automobile, and collision energy can be absorbed by shrinkage of the whole device, so that the collision safety of the automobile is improved.
Owner:GUANGXI UNIV

Robot arm control method and control device

When either a command value or an actually measured value is appropriately selected as an angular velocity used for the frictional torque calculation, the frictional compensation can be made valid at all times in both the case in which a robot is actively operated according to an angular velocity command and the case in which the robot is passively operated being pushed by an external force. In the case where a motor rotating direction and a collision direction are reverse to each other after a collision has been detected, the control mode is switched from the positional control to the electric current control and a torque, the direction of which is reverse to the direction of the motor rotation is generated by the motor, so that the motor rotating speed can be reduced and the collision energy can be alleviated. After that, when the motor rotating speed is reduced to a value not more than the setting value, the control mode is switched to the compliance control and the distortion caused in a reduction gear is dissolved. On the other hand, in the case where the motor rotating direction and the collision direction are the same, the control mode is directly switched from the positional control to the compliance control without passing through the electric current control. When the robot is operated whole following a collision force, the collision force can be alleviated.
Owner:PANASONIC CORP

Safe protecting method and device for rollover of coach

The invention relates to the technical field of safety protection of coaches and particularly relates to a safe protecting method and a device for the rollover of a coach. The inclination angle of a coach body is sensed by an inclination sensor arranged at the gravity center of the coach body; when the inclination angle of the coach body of the coach exceeds a set clinical angle during driving, an instruction is transmitted to a compartment door ejecting mechanism arranged between a luggage compartment door and the coach body by the controller to open the luggage compartment door; the luggagecompartment door grounded ahead of the coach body absorbs a part of impact energy through a triangular structure consisting of a lower upright post of a coach body waist beam, a compartment door upright post hinged with the lower upright post of the coach body waist beam and a folding pull rod of which two ends are respectively hinged to the lower upright post of the coach body waist beam and thecompartment door upright post, so that the grounded deformation of a coach body structure is buffered and reduced and the function of protecting the living space of passengers is achieved. According to the safe protecting method and the device disclosed by the invention, a traditional structure of the coach body can be better utilized and the rollover resistance of the coach is improved by adopting an active mode.
Owner:JILIN UNIV

Robot arm control method and control device

When either a command value or an actually measured value is appropriately selected as an angular velocity used for the frictional torque calculation, the frictional compensation can be made valid at all times in both the case in which a robot is actively operated according to an angular velocity command and the case in which the robot is passively operated being pushed by an external force. In the case where a motor rotating direction and a collision direction are reverse to each other after a collision has been detected, the control mode is switched from the positional control to the electric current control and a torque, the direction of which is reverse to the direction of the motor rotation is generated by the motor, so that the motor rotating speed can be reduced and the collision energy can be alleviated. After that, when the motor rotating speed is reduced to a value not more than the setting value, the control mode is switched to the compliance control and the distortion caused in a reduction gear is dissolved. On the other hand, in the case where the motor rotating direction and the collision direction are the same, the control mode is directly switched from the positional control to the compliance control without passing through the electric current control. When the robot is operated whole following a collision force, the collision force can be alleviated.
Owner:PANASONIC CORP

New energy automobile charging pile capable of automatically taking up cables

The invention relates to the technical field of new energy, and discloses a new energy automobile charging pile capable of automatically taking up cables, which comprises an equipment main body; buffer pads are arranged on the two sides of the equipment main body; guide rods are fixedly connected to the ends, close to the equipment main body, of the buffer pads, and first spring rods are fixedly connected to the ends, away from the buffer pads, of the guide rods. According to the new energy automobile charging pile capable of automatically taking up wires, after charging is completed, a charging gun is placed in a clamping groove again; at the moment, the charging gun extrudes a contact block downwards, a switch assembly in a second spring rod abuts against the contact block, a circuit isclosed, an electromagnet is powered on, magnetism is enhanced, and a metal sliding block is attracted to slide upwards and abut against the electromagnet; a pawl synchronously moves along therewith and gradually gets away from a ratchet wheel, a coil spring gradually resets and drives the ratchet wheel to rotate anticlockwise, the ratchet wheel drives a winding roller to rotate synchronously, thewinding roller winds a cable, and the cable is prevented from being excessively exposed outside and being contaminated and damaged.
Owner:广州碧愿贸易有限公司

A Method for Improving Accident Black Spots on Exit Ramps of Expressway

InactiveCN102912700BFacilitate early decelerationAchieve a reasonable transitionClimate change adaptationTraffic signalsIntermediate frequencyDark spot
The invention relates to an improving method for a dark spot in an accident at an exit ramp of an expressway based on retro-reflection illumination, wherein ramp grading speed-limit signs are arranged at sight through places in front of the starting point and the nose end of a transition section of a deceleration lane of the exit ramp; a main line single-layer linear induction sign and a ramp double-layer linear induction sign are arranged behind the nose end of the exit ramp; a lane edge line of the exit ramp deviates towards the inner side and reduces the width of a traffic lane, an edge line of a lane at the outer side is set to be a vibration edge line; raised road signs are arranged at the outer sides of a main line and a road edge line of the exit ramp from the end point of the deceleration lane, and a single-side anti-collision bucket is arranged at a guardrail next to the outer side of the ramp from the nose end of the exit ramp, so as to form a high-frequency vision information stream commonly; road-surface lateral deceleration marked lines are arranged in the heading direction of the exit ramp at an interval of 8-12m, so as to form an intermediate-frequency vision information stream commonly with road side linear induction signs; and road side vibration marked lines, anti-collision buckets and the guardrail form road side multi-level protection, and all safety facilities are made of high-strength reflecting materials. The improving method is suitable for realizing the speed limit for a downgrade ramp at an exit of the expressway (40-60km / h).
Owner:WUHAN UNIV OF TECH

Method and device for decoupling mass for a motor vehicle

InactiveUS20160318399A1Simple and space save arrangementReduce delayVibration dampersElectric devicesEngineeringKinetic energy
The invention relates to a mass-decoupling device for a motor vehicle, having: a mass-receiving element (10) and a mass object (11) accommodated therein, which mass-receiving element (10) and mass object (11) are point symmetrically formed and mounted opposite a body (36) of the motor vehicle; at least one guide means (13) that moveably mounts the mass-receiving element (10) and the mass object (11) accommodated therein along a longitudinal axis (L) of the vehicle; decoupling means (14) designed to decouple the mass-receiving element (10) and the mass object (11) accommodated therein from the body (36) of the motor vehicle; first energy-receiving means (15) designed to transmit kinetic energy of a movement of the mass-receiving element (10) and the mass object (11) accommodated therein to the body (36) of the motor vehicle in a predetermined time interval, said movement occurring along the longitudinal axis (L) of the vehicle, from a first position (P1) to a second position (P2); and second energy receiving means (16) designed to convert, at least partially, the kinetic energy of the movement of the mass-receiving element (10) and the mass object (11) accommodated therein along the longitudinal axis (L) of the vehicle into kinetic energy of a rotation of the mass object (11). The invention also relates to a corresponding method for decoupling mass for a motor vehicle.
Owner:ROBERT BOSCH GMBH
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