1068results about How to "Ensure driving safety" patented technology

The invention discloses a method for determining the driving state of a vehicle based on an acceleration sensor. The method comprises the following steps of: A, acquiring the longitudinal acceleration, the transverse acceleration and the vertical acceleration of an automobile by using a three-axial acceleration sensor; B, calculating a conversion matrix of an automobile coordinate system and an acceleration sensor coordinate system, acquiring the initial attitude of the acceleration sensor, namely the initial angle between the acceleration sensor and the automobile, and performing zero bias filtering processing on the acquired accelerations so as to acquire the acceleration value of the automobile coordinate system; and C, determining the driving state of the vehicle according to the acceleration values of a plurality of continuous automobile coordinate systems. In the method for determining the driving state of the vehicle based on the acceleration sensor, the original data is acquired by the acceleration sensor, and the driving state of the vehicle is determined by analyzing and processing three axial accelerations, so that the driving behaviors and the driving state of a driver are known, vehicle managers are assisted in normalizing the driving behaviors, dangerous driving behaviors are prevented, and driving safety is ensured.

A pure electric automatic driving system provided by the present invention comprises an environmental information acquisition system, a perception fusion unit, an intelligent decision unit, a vehiclemotion coordination controller and a vehicle execution system which are connected orderly, wherein the intelligent decision unit outputs the local paths that a vehicle can drive and the correspondingdriving behavior instructions to the vehicle motion coordination controller, and the vehicle motion coordination controller realizes the transverse motion control and the longitudinal motion control of the vehicle, so that the automatic driving system is modular in function division and normalized in information interfaces, the application scenes of the automatic driving functions are helpful to be expanded, and the riding safety experiences of the automatic driving vehicles, for example, the safe and comfortable automatic driving at a faster vehicle speed and on a faulted working condition, are improved. In addition, the vehicle motion coordination controller monitors the real-time state of the whole automatic driving system, so that the fault states can be identified timely, the reasonable countermeasures can be made, and the driving safety of the automatic driving under various states is guaranteed.

A universal Automatic Train Protection ATP vehicle mounted system and mode control method. The invention mainly uses digital signal processing and safe redundant control technology, designs a safe Protection Automatic control system which can receive many varieties of ground vehicles information transmission modus, realize the combination of the train speed steps control and the first-order speed-distance model curve and realize the generalization of vehicle automatic protection system vehicle mounted equipments. And the ground vehicles information transmission modus consists of analog and digital track circuit, responder, GSM-R transmission, 2.4GHz wireless transmission, etc. the safe protect control is the safe braking model control using the combination of speed steps and first-order speed-distance model curve. The system mainly consists of power module, ground vehicles information transmission reception module, central processing module, recording module and man-machine interface MMI module, etc. The beneficial result is getting a solving program for users on the base of reducing construction costs and intercommunicating transport operation.

The invention discloses a vehicle monitoring system based on Beidou system. The invention is characterized in that the system is composed of a Beidou ground monitoring centre, a Beidou navigating and locating satellite and a Beidou vehicle-mounted system, wherein the Beidou navigating and locating satellite is dependent on current satellite system built by Beidou network system. The Beidou vehicle-mounted system comprises a Beidou terminal and a train network. The train network is a current TCMS system, wherein the TCMS system comprises a vehicle dragging sub-system, a vehicle braking sub-system, a vehicle signal sub-system and a vehicle broadcasting sub-system. The TCMS system is communicated with a Beidou terminal via an RS232 interface to provide vehicle state information to the Beidou terminal on one hand, and to receive Beidou navigating and locating information, time service information and control instruction from the ground monitoring centre on the other hand so as to control the operation of the vehicle. The Beidou terminal is communicated with the locating satellite. The locating satellite is used for transmitting the locating information and vehicle state information to the ground monitoring centre. The centre is used for transmitting the information to all ground monitoring terminals so that the operated vehicle can be monitored and all operated vehicles can be monitored and controlled.

The invention discloses a coordination control method for a crossroad left-turning pre-signal and a straight-going successive signal, which comprises the steps that: a main signal lamp is arranged at first in the middle of a crossroad, left-turning pre-signal lamps are respectively arranged at first stop lines of four left-turning entrance lanes for left turning vehicles, straight-going successive signal lamps are respectively arranged in front of second stop lines of four exit lanes for straight-going vehicles; a main signal phase, a phase difference between the left-turning pre-signals and the straight-going successive signals, and a phase difference between the straight-going successive signals and the main signal are then configured, time allocation is prepared, the sum of key flow ratios of the phases is calculated, and the time for green light is finally allocated; according to the method disclosed by the invention, the contradiction in the aspect of time between the left-turning vehicles and the straight-going vehicles is thoroughly settled by means of the coordination control for the main signal, the pre-signals and the successive signals, thereby guaranteeing drive safety; the entire cycle for the coordination control only needs to be calculated once, which is fast and convenient, and the method effectively avoids that the adoption of traditional time allocation method is likely to lead to the jam of left-turning vehicles.

The invention discloses a torque monitoring method and system thereof for electric automobiles, and belongs to the technical field of the control of electric automobiles. The torque monitoring method comprises the following steps: detecting vehicle control signals and vehicle state signals, and calculating the actual torque of a motor according to the detected signals; judging whether the control system of the whole vehicle is failed or not, if yes, generating fault adjusting torque according to the type of the fault; when the control system of the whole vehicle is normal, using the actual output torque of the motor as demanded torque, else, using the fault adjusting torque as demanded torque; calculating a torque threshold according to the vehicle control signals, the vehicle state signals and the capabilities of components and parts; making a comparison between the demanded torque and the torque threshold, and limiting the demanded torque within the range of torque threshold so as to obtain output torque. The technical problem that the vehicle is out of control because of the fault of the controller of the whole vehicle is solved, particularly, the output demanded torque can be monitored, so that the sudden change of the demanded torque or the phenomenon that the demanded torque exceeds the seasonal threshold range can be avoided.

The invention discloses a frost damage prevention drainage system for a tunnel. A heat-insulating buried water trench (6) is arranged below a primary support layer (1); multi-section draining pipes (7) are arranged in the heat-insulating buried water trench (6); an inspection shaft (8) is arranged between two adjacent draining pipes (7); the lower end of the inspection shaft (8) is communicated with the draining pipe (7); waterproof plates (11) are fully paved between the primary support layer (1) and a secondary lining concrete layer (2); annular punching bellows (12) and longitudinal punching bellows (13) are arranged on the outer sides of the waterproof plates (11); and openings at the lower ends of the annular punching bellows (12) are positioned in a gravel water seepage layer (10). According to the frost damage prevention drainage system disclosed by the invention, the phenomenon that the draining pipeline of a tunnel drainage system is blocked in severe cold regions due to freezing can be effectively prevented, the damage to a tunnel lining structure is avoided, the driving safety is ensured and the cleaning and maintaining expenses during operation are greatly reduced. The frost damage prevention drainage system has the characteristics of simple structure, easiness in implementation, favorable reliability, easiness in popularization and the like.

The invention discloses an automobile anti-collision safe protecting method based on image processing. The automobile anti-collision safe protecting method based on image processing comprises an automobile safe automatic protector image identifying system, the automobile safe automatic protector image identifying system comprises a multi-core processor, an automobile-speed collecting module, a plurality of cameras, a displaying module, an alarming device and a positioning device, the automobile-speed collecting module, the cameras, the displaying module, the alarming device and the positioning device are all connected with the multi-core processor, and the multi-core processor is connected with a braking motor for an automobile safe automobile protector. The automobile anti-collision safe protecting method based on image processing is simple and easy to achieve, small in operand and capable of effectively avoiding occurrence of collision accidents, and ensures traveling safety of an automobile. The automobile anti-collision safe protecting method based on image processing can further be applied to transportation tools like airplanes, ships and high-speed trains.

The invention discloses an automobile and a driver fatigue early warning detecting method and system for the automobile. The driver fatigue early warning detecting system comprises a video collecting module, a facial recognition module, an eye detecting module and a judging module, wherein the video collecting module is used for collecting image information of passengers inside the automobile, the facial recognition module is used for processing the image information of the passengers inside the automobile to obtain facial characteristic parameters of a driver and obtaining facial position information of the driver according to the facial characteristic parameters of the driver, the eye detecting module is used for obtaining eye area information of the driver according to the facial position information of the driver and obtaining eye characteristic parameters of the driver according to the eye area information of the driver to detect eye characteristic information of the driver, and the judging module is used for judging whether the driver is in the fatigue state or not according to the eye characteristic information of the driver. According to the driver fatigue early warning detecting system, the driver inside the automobile can be automatically recognized, fatigue processes and movements of different drivers can be studied, the fatigued characteristics of the driver are memorized, and whether the driver is in the fatigue state or not is judged.

The invention relates to a vehicle pavement identification system and a suspension mode switching method and belongs to the field of automobile safety and comfort. A suspension mainly comprises sprung mass, an elastic element, a damper, a linear motor, unsprung mass, an acceleration sensor A, an acceleration sensor B, a displacement sensor A, a displacement sensor B, a current amplifier, an A/D converter, a signal storage unit, an ECU, a power amplifier and a D/A converter. The ECU (14) comprises a signal processing module, an analysis module, a judgment module and a control module, receives displacement signals and acceleration signals, measured by the vehicle sensors, of the sprung mass and the unsprung mass, grades road conditions by combining the vehicle speed and the damping coefficient and meanwhile controls the suspension by combining vehicle working conditions and switching different modes to meet the requirements of safety and comfort. According to the vehicle pavement identification system and the suspension mode switching method, the linear motor is adopted as an actuator, brake energy of the suspension can be recovered under good road conditions for supplying to other systems for using, and energy feedback performance is achieved.

The invention discloses a vehicle distance control method and device for an electric vehicle and an electric vehicle. The method comprises the following steps of obtaining a distance between the electric vehicle and a preceding vehicle or a barrier; obtaining relative vehicle speed and relative acceleration between the electric vehicle and the preceding vehicle or the barrier according to the distance between the electric vehicle and the preceding vehicle or the barrier; calculating a collision avoidance time according to the distance and relative vehicle speed between the electric vehicle and the preceding vehicle or the barrier; judging a safety state grade of the electric vehicle according to the collision avoidance time and the relative acceleration; and controlling the electric vehicle according to the safety state grade so as to realize an active vehicle distance control function. The vehicle distance control method disclosed by the embodiment of the invention can intelligently and actively control the vehicle distance without being additionally provided with a control system and an executing mechanism so that the driving safety is ensured and user experience is greatly improved.

The invention provides a signal lamp state terminal display method and a system based on a cooperative vehicle infrastructure technology. The system comprises a traffic signal machine, a roadside module, a vehicle infrastructure communication module and a terminal device, wherein the traffic signal machine is used for generating signal lamp phase timing information and transmitting the information to the roadside module; the roadside module is used for publishing intersection position information, local MAP information and a real-time SPAT information; the vehicle infrastructure communication module is used for information data interaction between the terminal device and the roadside module; and the terminal device is used for acquiring, processing and displaying the vehicle motion state data and terminal information. The cooperative vehicle-infrastructure technology is used for realizing real-time displaying of the signal lamp state on the terminal device, a driver can conveniently judge the vehicle passing time and the queue time, the road traffic safety is enhanced, the road traffic pressure is reduced, influences from the environment, the vehicle and the driver do not exist, and the system use efficiency is high; and red lamp early warning or automatic control can also be realized, the intersection driving safety is ensured, and a behavior of running the red lamp to break the law can be avoided.

The invention discloses a macromolecular synthesized memory sizing material which comprises the following raw materials by weight percentage: 41-48% of elastomer, 38-41% of tackifier, 4-6% of softener, 1.5-3.2% of anti-aging agent and 4.5-9% of filler. A pricked part of a tyre sprayed with the macromolecular synthesized memory sizing material under various daily environments can heal automatically; accidents such as air leakage or tyre burst caused by prick of a sharp object can be effectively avoided; especially, the driving safety in a high speed driving state can be ensured to the greatest extent; the service life of the tyre is prolonged under the condition that the original performance of the tyre is not influenced; and various unnecessary troubles such as tyre repairing are reduced.

The invention discloses a man-machine co-driving lane departure auxiliary system and method. The lane departure auxiliary system comprises an auxiliary decision making module used for judging whethera vehicle departs from a lane and coordinating the control right of a driver and the lane departure auxiliary system to the vehicle when it is judged that the vehicle departs from the lane, a controller module used for actively correcting the attitude of the vehicle when the vehicle departs from the lane, guaranteeing that the vehicle travels near the center line of the lane all the time and guaranteeing traveling safety, and an execution module used for executing control information of the controller module and finishing lane departure assistance. By the adoption of the man-machine co-drivinglane departure auxiliary system, the attitude of the vehicle is actively corrected when the vehicle departs from the lane, it is guaranteed that the vehicle travels near the center line of the lane all the time, and traveling safety is guaranteed.

The invention discloses a local flexible virtual stem turning control system suitable appropriate for independent automatic tracking. The system comprises a laser distance meter, a GPS (global position system) navigation device, a three-axis gyro, a coded disc, a camera, a first motion state detection unit, a second motion state detection unit and a local flexible virtual stem autonomous trackingsystem. The system is characterized in that firstly, a target robot is detected by a laser radar so as to obtain the distance, pose and position of the target robot relative to an autonomous following robot; then, the position coordinate of the target robot in a world coordinate system is obtained by using the self-positioning information of the autonomous following robot; and finally, according to the current and historical points of the target robot, the motion curve of the target robot can be obtained just through a local flexible virtual-stem model, and then the inflection point of a rigid section and a flexible section is learned. By using the system disclosed by the invention, the motion locus of the target robot can be reiterated more accurately by using the autonomous following robot.

The invention provides a running speed control method of a combined train. The method comprises following steps: A, the present distance between the train and an object is confirmed; B. the present safe braking distance between the train and the object is calculated; C, when the present distance between the train and the object is judged to be smaller than the safe stopping distance, a braking mode curve is generated to perform braking. By adopting the method, the speed of the combined train can be controlled in real time on a whole rail way, and the signaling security of the transportation of the train can be improved.

The embodiment of the invention discloses a bend passing control method and device for an automatic driving vehicle, equipment and a medium, and relates to the technical field of automatic driving. Atleast one implementation mode of the bend passing control method comprises the steps that the bend boundary in a perception area located in the current driving direction of the automatic driving vehicle is determined on the basis of the current position of the automatic driving vehicle in a bend; the current safe stopping distance of the automatic driving vehicle in the bend is determined throughcurrent driving parameters of the automatic driving vehicle and the bend boundary; a speed threshold value of the automatic driving vehicle is determined according to the current safe stopping distance, braking parameters of the automatic driving vehicle and the bend curvature corresponding to the current position; and the speed of the automatic driving vehicle is controlled to not exceed the speed threshold value. According to the embodiment of the bend passing control method and device for the automatic driving vehicle, the equipment and the medium, the passing success rate of the automaticdriving vehicle in the narrow bend can be increased, and the driving safety is guaranteed.

The invention discloses a mechanical, electronic and hydraulic brake system which is used for a vehicle and comprises a brake pedal, sensors, a brake master cylinder, an electronic-control linear driving module, a pedal force simulation module and two linear motors. The sensors are used for acquiring the speed and displacement when the brake pedal is treaded; the brake master cylinder is connected with four wheel cylinders by wheel cylinder hydraulic pressure control valves; the electronic-control linear driving module is directly connected with the brake master cylinder and drives a piston of the brake master cylinder to linearly move according to signals from the sensors; the pedal force simulation module provides brake feel for a driver by the aid of motors and corresponding transmission mechanisms; the two linear motors are serially connected with each other, a shaft of one of the two linear motors is connected with the brake pedal, a shaft of the other motor is connected with a shell of the first motor and directly pushes the master cylinder to generate pressure, and a shell of the other motor is fixedly connected with a vehicle body. The mechanical, electronic and hydraulic brake system has the advantages that an integration level of the brake system can be obviously upgraded, functions of the brake system can be obviously increased, the pedal feel can be guaranteed, and the reliability of the system can be guaranteed owing to a mechanical connection mode.

The invention provides a method for controlling vehicle machine application operating authorization, a vehicle-mounted device and a terminal. The vehicle-mounted device comprises a first acquisition module, a second acquisition module and a sending module. The first acquisition module is used for acquiring the running states of the vehicle, and the running states comprise a vibration state, a turning state and an acceleration-deceleration state; the second acquisition module is used for acquiring the control data of the vehicle, and the control data comprises the speed, the engine rotating speed, the steering wheel turning direction, and the accelerator/brake pedal state; and the sending module is used for sending the running states and the control data to a terminal, and the terminal automatically adjust the operating authorization of the vehicle machine application on the terminal according to the running states and the control data; and the terminal is connected with the vehicle-mounted device in a communication manner. According to the above scheme, the operating authorization of the vehicle machine application is controlled and adjusted according to the monitored running state and the running data of the vehicle, and therefore when a driver needs to pay attention to driving the vehicle, the driver cannot carry out some operations of the vehicle machine application, and the driving safety of the driver is guaranteed.

The invention discloses a cleaning device for municipal road guardrails. The right end of a hydraulic cylinder is rotationally connected with a lantern ring; the lantern ring is connected to the lowerend of a cleaning roll in a sleeving mode; a supporting rod is arranged on the upper portion of the hydraulic cylinder; the left end of the supporting rod is slidably connected with a guide groove; the right end of an upper lantern ring is rotationally connected with another upper lantern ring, and the upper end of the cleaning roll is sleeved with the upper lantern ring; a drive motor is arranged inside the left end of a device body; the upper end of the drive motor is rotationally connected with a driving shaft; the upper end of the driving shaft is rotationally connected with a crankshaft;the upper portion of the crankshaft is rotationally connected with the device body through a bearing; and a first bevel gear is fixedly connected to the middle of the driving shaft. According to thecleaning device for the municipal road guardrails, the angle of inclination of the cleaning roll is adjusted through the hydraulic cylinder so that the road guardrails of different degrees of inclination can be cleaned, and the cleaning effect is good; a water suction roll is arranged at the lower end of the device body and used for preventing sewage generated during cleaning from flowing around,roads can be clean and attractive, and driving safety is ensured. The cleaning device for the municipal road guardrails is simple, reasonable and practical in structural design, the effect of cleaningof the road guardrails is greatly improved, and the problem that sewage generated during cleaning flows around is effectively solved.

The invention discloses driver attention state monitoring method and device. An output port of a camera is connected with an input port of a video decoder, and a digital signal processor is externally connected with the video decoder, a storage, a power supply and an alarm buzzer respectively. The method comprises the following steps of: acquiring a face video detection image of a driver by the camera, using the transverse width between two eyes of the driver and the longitudinal distance from the mouth to the middle point of a connecting line of the two eyes, which are detected under the normal state, as standard distances for locating the face, and resetting the standard distances whenever the face is located; comparing the distances actually detected in the driving process with the standard distances; and judging whether the driver is distracted according to the change obtained by comparing the actually detected distances and the standard distances. The invention can monitor the whole forming process of tiredness and distraction of the driver, judge whether the drive is tired and distracted, capture the distraction state of the driver in time, warn dangerous driving behavior such as distraction, and guarantee the safe driving of the driver.

The embodiment of the invention provides a train positioning method combining image matching and a two-dimensional code, equipment and a storage medium. The train positioning method comprises the steps that an environment image of a train in operation is collected; first position information corresponding to a standard image matched with the environment image and second position information corresponding to a two-dimensional code graph in the environment image are acquired; and current position information of the train is determined according to the first position information and the second position information. Through the method, the accuracy of train positioning information can be effectively improved, investment of operation and maintenance cost is effectively reduced, and high applicability is achieved.

The invention discloses a spraying type steel barrier, which comprises columns, upper cross bars, lower cross bars and vertical bars. The main bodies of the columns, the upper cross bars, the lower cross bars and the vertical bars are all integrated style steel works. The columns are made from the galvanized steel strip, made into steel pipe of a certain shape and sprayed with plastic or paint; the upper cross bars, the lower cross bars and the vertical bars are integrated parts which the upper cross bars, the lower cross bars and the vertical bars are respectively made from the galvanized steel strip, steel pipes of a certain shape are made through extrusion forming of the steel pipe stock mould, seam welding of the high frequency induction welder and extrusion forming of the steel pipe shaping mould and the integrated parts are formed by placing the vertical bars between the upper cross bars and the lower cross bars, welding and fixing, and at last spraying plastic or paint on the exterior surface of the integrated parts. The spraying type steel barrier has the advantages of high structural strength, deformation resistance, beautiful and clean barrier surface, rustiness resistance, easy cleaning, greatly reduced maintenance cost, both the beautiful appearance of the PVC plastic steel barrier and the high strength of the assembly type barrier.

The invention relates to an active electric power-assisting circulation ball type steering system, comprising a steering column tube assembly, a screw rod moving device, a circulation ball type steering device, an electric power-assisting device and an automatic control module. A steering column tube is connected with the upper part of a screw rod of the circulation ball type steering device through a sliding spline, and the electric power-assisting device is connected with the lower part of the screw rod through a sliding spline; the screw rod moving device is sleeved on the screw rod; the screw rod has two motion freedoms; a freedom of rotating around the axis is controlled by a steering wheel; and the other freedom of moving along the axis is controlled by a screw rod moving control motor; a steering nut is moved by overlapping the effects of rotation and axial movement of the screw rod, so that a transmission ratio of the steering system is changed in real time, and the active steering is intervened. The steering system not only can meet the requirements on lightness and high sensitivity at a low-speed steering process and on stable operation at a high-speed steering process, but also has the characteristics of security, compact structure, low cost and the like. The active electric power-assisting circulation ball type steering system is applicable to a medium/light passenger bus and a lorry.

The invention belongs to the field of automobiles, and in particular discloses an automobile diagnostic method, a system, a diagnostic terminal and a backstage server, so that an automobile owner is enabled to master the fault situation of the automobile in real time. The method comprises the step of installing the diagnostic terminal in the automobile to be connected with an electronic control unit (ECU) so as to obtain state data of the automobile in the ECU; detecting whether the automobile has faults according to the obtained state data; when the automobile has faults, generating a fault code and transmitting the fault code in real time; and transmitting the diagnosis result obtained by diagnosing and analyzing the fault code to the automobile owner. The diagnostic terminal comprises an interface, an obtaining module, a detection nodule, a fault code generating module and a transmitting module, wherein the interface is used for being connected with the ECU in the automobile; the obtaining module is used for obtaining the state data of the automobile in the ECU; the detection module is used for detecting whether the automobile has faults according to the obtained state data; the fault code generating module is used for generating a fault code when the automobile has faults; and the transmitting module is used for transmitting the fault code in real time so as to diagnose and analyze the fault code.

The invention relates to a traffic early-warning method, an information transmitter, an information receiver and a traffic early-warning system, belonging to the field of traffic safety. The traffic early-warning method, the information transmitter, the information receiver and the traffic early-warning system are automatically or manually or circularly triggered according to time period. Traffic early-warning information is processed and transmitted by technologies, i.e. the information processing, the radio receiving and transmitting, the directive antenna, the broadcast type communication, the relay retransmission, the alarm display and the like. The propagation path can be widened, the propagation mode can be improved, the propagation distance can be prolonged, and the propagation effectiveness and the information initiative can be improved. The sufficient information sharing among main bodies of the road traffic can be realized. The traffic safety early-warning where the abnormal situation does not form the actual danger, the early-warning distance reaches the furthest kilometer level, and the early-warning time reaches the longest minute level can be provided for vehicle drivers; and a traffic sign facility is used for transmitting the traffic sign information to a receiver on a vehicle through radio wave and transmitting to drivers, and preferably, the receiver transmits an active alarm signal corresponding to the received traffic sign information with the appointed type.

The invention discloses a redundant electronic steering system and control method of an autonomous vehicle. Two electronic power steering units are arranged, wherein each electronic power steering unit comprises a processor, a steering angle and torque sensor and a motor, wherein the steering angle and torque sensor and the motor are correspondingly connected with the processor; the steering angleand torque sensor is used for outputting a torque signal and an angle signal; the processor is also used for calculating a current total torque value K, needing to be output, of the whole system according to a current expected steering wheel steering angle signal, a torque signal and an angle signal and calculating a torque value needing to be output by the electronic power steering unit according to a distribution mechanism; and the processor is also used for controlling the motor correspondingly connected with the processor according to the torque value to control the vehicle to realize steering. According to the redundant electronic steering system and control method of the autonomous vehicle, full redundancy of the electronic steering system is realized, and safety requirements of automatic driving can be satisfied.

The invention relates to a method for prompting comprehensive service information of an automobile, which comprises the following steps that: electronic map software and a service information database are arranged in an automobile information prompting system; a GPS positioning software and control software are arranged in the automobile information prompting system; when the automobile runs or stops, a voice prompting system provides road monitoring point information, forward road condition information, driving guidance information, driving direction information, parking information, gas station information or automobile maintenance point information and the like for a driver. The comprehensive service information system of the automobile can be combined with a burglar alarm, a reversing radar system, an automobile navigation system, a driving computer system, a tire pressure detection system or an automobile sound system; the GPS burglar device of the automobile can realize the speed monitoring, safety reminding and positioning navigation through the software upgrading on the basis of the addition of less hardware, further simplify vehicle equipment and reduce the construction cost and the maintenance expense of an automobile owner; and the more important thing is that the method and the GPS burglar alarm ensure the driving safety.

The invention relates to a high-friction coefficient composition brake shoe. The high-friction coefficient composition brake shoe comprises a steel backing and a friction material, the friction material comprises the following raw materials including, by weight, 1-5 parts of aramid fiber, 8-12 parts of butadiene-acrylonitrile rubber, 0.5-1 part of stearic acid, 0.3-1 part of an accelerant, 0.6-1 part of sulphur, 0.5-1 part of zinc oxide, 4-7 parts of phenolic resin, 10-20 parts of inorganic composite fiber, 8-15 parts of iron powder, 10-20 parts of barium sulfate, 7-15 parts of kibdelophane powder, 5-10 parts of steel wool fiber, 1-3 parts of bauxite, 8-15 parts of potassium feldspar powder, 2-5 parts of mica, 2-5 parts of flake graphite, 5-10 parts of sepiolite fiber and 2-5 parts of molybdenum disulfide. By means of the high-friction coefficient composition brake shoe, the change of the speed of the wear rate of the high-friction coefficient composition brake shoe can be basically identical to the change of the adhesion coefficient of a wheel track, the abrasion loss when a vehicle is braked is less, failure can not occur in braking, and the traffic safety is guaranteed. The invention provides a production method of the high-friction coefficient composition brake shoe at the same time.

The invention discloses an intelligent vehicle balancing system which at least comprises a two-wheeled vehicle body, two hand holding parts, two pressure sensors and a control module. The two hand holding parts are installed at two ends of a direction rod of the two-wheeled vehicle body respectively, the two pressure sensors are used for sensing pressure of the two hand holding parts respectively, and the control module is arranged on the two-wheeled vehicle body and used for controlling turning directions of the direction rod on the basis of pressure values sensed by the two pressure sensors. Preferably, the control module comprises a speed detection unit, a first sub control unit and a second sub control unit, wherein the first sub control unit is used for controlling a two-wheeled vehicle to run by using a response module which is based on an inverted pendulum model and combined with human initiative intervention on motion according to relevant information, and the second sub control unit is used for regulating vehicle speeds by enabling the two-wheeled vehicle to speed up and then slow down in a predetermined scope on the basis of relevant parameters of the two-wheeled vehicle when the speed of the two-wheeled vehicle reaches a predetermined maximum value. The intelligent vehicle balancing system is capable of controlling balance running of the two-wheeled vehicle on the basis of pressure and speeds so as to guarantee stability and safety of the running two-wheeled vehicle.