2080 results about "Emergency brake" patented technology

The invention discloses an active safety type assistant driving method based on stereoscopic vision. An active safety type assistant driving system comprehensively utilizes an OME information technology, consists of a stereoscopic vision subsystem, an image immediate processing subsystem and a safety assistant driving subsystem and comprises two sets of high resolution CCD (charge-coupled device) cameras, an ambient light sensor, a two-channel video collecting card, a synchronous controller, a data transmission circuit, a power supply circuit, an image immediate processing algorithms library, a voice reminding module, a screen display module and an active safety type driving control module. According to the active safety type assistant driving method, separation lines and parameters such as relative distance, relative speed, the relative acceleration and the like of dangerous objects such as front vehicles, front bicycles, front pedestrians and the like can be accurately identified in real time in sunny days, cloudy days, at nigh and under the severe weather conditions such as rain with snow, dense fog and the like, so that the system can prompt a driver to adopt countermeasure through voice and can realize automatic deceleration and emergency brake at emergency situation, thereby ensuring safe travel in a whole day.

The invention provides an active-lane-changing collision-avoidance control method and device based on vehicle-vehicle coordination and belongs to the technical field of intelligent traffic / automobile active safety control. The active-lane-changing collision-avoidance control device comprises a vehicle-vehicle communication unit, a distance measuring sensor, a three-axis acceleration sensor, a vehicle speed sensor, an electronic control unit, an ESP control unit, a driver auxiliary operation unit, a tail lamp control unit and a vehicle inner warning unit. According to the active-lane-changing collision-avoidance control method, surrounding vehicle information is obtained through the vehicle-vehicle communication unit, the safety distance between a vehicle and a front vehicle on the same lane and the safety distance between the vehicle and a front vehicle on the side lane are determined; then, whether the vehicle meets the coordinated lane-changing collision-avoidance requirement is judged, if yes, the expectant lateral and the longitudinal acceleration of the vehicle is calculated, and control over the direction and the speed of the vehicle are conducted, and if not, lane-changing danger warning is conducted. By the adoption of the active-lane-changing collision-avoidance control method and device based on vehicle-vehicle coordination, active-lane-changing collision-avoidance control is achieved, driver safety accidents caused by emergency brake and rear-end collision accidents caused by emergency brake can be avoided, manual operation errors are avoided, and the safety of driving the vehicle is guaranteed.

To determine whether an emergency braking situation exists for a vehicle, the vehicle determines at least the following state variables: its own velocity, its own longitudinal acceleration, its relative distance from an object in front, and the speed and acceleration of the object in front. A suitable evaluation method to assess whether an emergency braking situation is present is determined as a function of these state variables from a plurality of evaluation method options, including at least a movement equation evaluation method in which a movement equation system of the vehicle and of the object in front is determined, and an evaluation method in which a braking distance of the vehicle is determined.

A brake system control unit controls one of first and second portions of a wheel brakes electric brake actuators to activate one of the first and second portions of the actuators and deactivate the other during an inhibited braking mode. The control unit controls the activated portion of the brake actuators to generate a braking force greater than the commanded braking force of the brake pedal command, such as twice the commanded braking force, to compensate for the deactivated portion of the brake actuators. The inhibited braking mode is discontinued during emergency braking when the commanded braking force is greater than or equal to a predetermined braking force. The inhibited braking mode is also discontinued when failure of one or more brake actuators is detected.

A self-propelled stroller apparatus comprising a motor, a drive train, a braking mechanism, and a set of hand controls, is herein disclosed. Two (2) rear wheels of the stroller are driven by a battery-powered motor utilizing a chain-driven drive train. The motor is controlled by a handlebar-mounted control lever, which when pushed motivates the stroller in a forward direction. During times when the motor and drive train are deactivated, the stroller may be pushed in a normal manner. The apparatus is additionally provided with an emergency braking system to stop or securely park the stroller. The battery is recharged by a normal household outlet and an electrical cord when the stroller is not in use.

A method of controlling inter-vehicle gap(s) in a platoon that includes a lead vehicle and one or more following vehicles includes the steps of: obtaining an indicator of a potential collision threat identified by an autonomous emergency braking system of the lead vehicle, wherein the autonomous emergency braking system of the lead vehicle includes pre-defined control phases, and wherein the indicator at least partly determines a current control phase of the autonomous emergency braking system; and sending the obtained indicator to the one or more following vehicles.

The invention discloses a synchronous control circuit for rail-vehicle-rescue emergency braking. Normally-closed contact coupling a relay and emergency braking relays are parallelly connected into emergency-braking train-line loops of lead vehicles of rescue vehicles and failed vehicles, and are used for rebuilding the emergency-braking train-line loops after rescue trains and failed trains are coupled; meanwhile, braking isolating switches are arranged on the lead vehicles of the rescue vehicles and the failed vehicles, rescue head-and-tail relays and braking isolating relays are parallelly connected, emergency-braking-button normally-closed contact of a driver table is connected into the emergency-braking train-line loops in a series mode, braking isolating electromagnetic valves of all the vehicles are parallelly connected into an emergency train-line loop, power is supplied through the emergency train-line loop, the emergency train-line loop is controlled to control the braking isolating electromagnetic valves, and under the working condition that rescue is achieved, emergency-braking synchronous control is achieved. A control method is safe and reliable, the synchronism is accurate, the purchasing expense of a whole project is saved more than 3-million yuan, device installation space is saved, and installation space and maintaining space are guaranteed for full power vehicles and unmanned driving vehicles.

The invention discloses a vehicle parking braking system, which comprises a signal acquisition unit for acquiring a vehicle state signal and a signal input unit for inputting a driver operation instruction, wherein the signal acquisition unit and the signal input unit output signals to a control unit; the control unit analyzes and processes the signals, and controls an execution unit to enable a vehicle brake caliper to clamp or release a brake disc. According to the system, required optimal braking force can be provided for parking, and the mechanical abrasion of the brake caliper is effectively reduced; in addition, the system can function in emergency braking after a travel braking system fails, so that a vehicle can be safety parked, and the safety of the vehicle is ensured.

Disclosed is a driver assistance method and system for avoiding violation of traffic lights. The method includes: 1, searching for and determining location of a road traffic light where a vehicle locates, and performing a step 2; 2, calculating change time gap t_g of the road traffic light where the vehicle locates, and performing a step 3; 3, comparing the time time-gap required for the vehicle to reach a warning line and the change time gap t_g, and judging whether the current vehicle is about to violate the traffic signal light or not; if yes, executing automatic emergency braking; if not, determining that the current vehicle does not violate the traffic light. The system comprises an automatic emergency bake controller, a vehicular camera, a vehicle electronic stability control system, and a wireless communication transceiving device, wherein the vehicular camera and the vehicle electronic stability control system are connected with the automatic emergency brake controller respectively through buses. The method and system has the advantages that the defects of the existing automatic emergency brake system are made up, the traffic lights can be recognized, corresponding brake judgments are made then, and violations of traffic lights, such as a bicycle running the red light or yellow light, can be avoided effectively.

The invention discloses an electronic parking controlling system with a redundant parking function. The electronic parking controlling system comprises an EPB electronic controlling unit and a caliperactuator. The EPB electronic controlling unit comprises an electronic parking controlling module and a power supply management circuit. The parking controlling system is internally provided with a redundant parking controlling unit. The redundant parking controlling unit comprises an EPB switch, a gradient sensor module and a motor driving module which are in the EPB electronic controlling unit,and is further provided with a redundant parking controlling module and a redundant module power supply management circuit. The redundant parking controlling module is connected with the electronic parking controlling module through a plurality of signal lines. By means of the technical scheme, not only can the normal parking function and the emergency braking function be met, but also the P-gearlocking mechanism function of an automatic gearbox can be replaced, the safety of parking is improved, and the electronic parking controlling system has the advantages of low cost, convenient arrangement and the like.

An emergency braking system for a machine tool for abruptly braking a revolving shaft includes at least one brake drum and at least one brake shoe which are engaged with one another in order to brake the shaft. The braking intervention between the brake drum and the brake shoe takes place under the influence of a centrifugal force resulting from the rotation of a shaft as soon as a locking device is released. Also provided in the braking system is a diagnostic system which allows the functionality of the locking device to be checked.

The invention provides an automatic emergency braking method and an automatic emergency braking device. The method comprises the steps that a corresponding relationship of road adhesion coefficient and target deceleration is set, and the target deceleration obtained through the corresponding relationship can avoid the intervention of a deadlock prevention braking system under the condition of the road adhesion coefficient; the current road adhesion coefficient is obtained via the deadlock prevention braking system; the corresponding relationship is searched according to the current road adhesion coefficient, so that the current target deceleration is obtained; the collision time is calculated according to the speed of the vehicle, the speed of a front vehicle, the distance between the two vehicles and the current target deceleration; when the collision time is less than a threshold value, the automatic emergency braking is carried out according to the current target deceleration. The automatic emergency braking method and the automatic emergency braking device aim to ensure the performance of the automatic emergency braking system and prevent the occurrence of collision accidents when the vehicle runs under lower road adhesion coefficient.

The invention discloses a vehicle emergency acceleration self-protection system which comprises a forward and backward environment sensing module, an information fusion module, a decision making and control module and an execution module. By the adoption of the system, the intelligence of a vehicle is improved, the forward and backward environment sensing module can obtain environment informationaround the vehicle, in combination with prediction of the current and future operation attitudes of the own vehicle, sensing of the current and future environment information around the vehicle is completed, the rear vehicle rear-end collision preventing early warning accuracy is effectively improved, the reliability of vehicle self-protection decision making and decision control is improved, traffic accidents are avoided or the occurrence rate of the traffic accidents is reduced, the personal safety and property safety of a driver are guaranteed, and meanwhile, an AEA system is an important supplement to an AEB system in the rear-end collision accident prevention process and is a novel active safety system.

The invention relates to the technical field of automotive active safety, in particular to an intelligent automobile barrier avoiding system. The intelligent automobile barrier avoiding system comprises a front ultrasonic wave detector, front alarm lamps, a left front ultrasonic wave detector, a right front ultrasonic wave detector, a left infrared detector, a right infrared detector, a left horn, a right horn, a left back ultrasonic wave detector, a right back ultrasonic wave detector, back alarm lamps, a back ultrasonic wave detector, an ECU unit, an EPS unit, ESP units, a steering motor, an emergency steering system, an emergency braking system, a braking motor and an ABS unit. By means of the intelligent automobile barrier avoiding system, the periphery of an automobile can be subjected to omnibearing detection when the automobile is started or backed up or steered, and corresponding feedback is permitted for preventing occurrence of collisions and pedestrian rolling matter; meanwhile, in the automobile driving process, for pedestrian jaywalking and front-automobile barrier falling, accidents are prevented from occurring through emergency braking or turning, safe driving distances of vehicles of a same lane are identified and warned, and therefore intelligent safety driving is really achieved.

The invention relates to a control method and device for an automatic emergency braking system, and belongs to the technical field of vehicle braking system. The method comprises the steps that whether or not a pedestrian and a target vehicle are on a driveway of a host vehicle, the speed of the pedestrian, the relative distance between the host vehicle and the pedestrian, the speed of the host vehicle, deceleration of the host vehicle, the speed of the target vehicle and the relative distance between the host vehicle and the target vehicle are detected, and the relative speed of the host vehicle and the pedestrian and the relative speed of the host vehicle and the target vehicle are determined. According to the method and the device, the pedestrian and the target vehicle can be distinguished, according to the host vehicle and target objects including the state of a driver, emergency circumstances are comprehensively and accurately judged, and braking is conducted; fuzzy braking for simulating manned driving can be achieved, and then effective and stable collision avoidance or collision damage lowering is achieved.

Disclosed are an apparatus and a method for controlling vehicle collision avoidance. The apparatus includes: a warning signal receiver configured to receive an emergency braking warning signal for a forward collision of a host vehicle; a traveling environment detector configured to detect object information, road information, and space information pertaining to areas in front of, to the side of, and in back of the host vehicle when the warning signal is received; an emergency braking determiner configured to determine whether a risk of a forward collision of the host vehicle is larger than or equal to a first threshold value when the warning signal is received; an avoidance area determiner configured to search for drivable lanes of the host vehicle and one or more candidate areas in the space according to the determined risk of the forward collision, calculate a score of each of the candidate areas, determine an avoidance area, and set an avoidance path for the avoidance area; and a control signal output unit configured to output steering and speed control signals for moving the host vehicle to the avoidance area along the avoidance path.

The invention discloses an automatic valet parking method and a system, and the automatic valet parking method comprises the steps that a server receives an automatic parking request of a user, buildsthe communication connection with an OBU of a current to-be-parked vehicle, and informs the vehicle of building a unique communication channel between the OBU and an RSU of a field side based on the5G-V2X technology; the server obtains the field end environment information collected by a road side sensing device and a vehicle-mounted sensing device of the vehicle in real time through the RSU soas to plan the driving track of the current vehicle to be parked, wherein the field end environment information comprises the position information of the current vehicle to be parked; and the server sends the driving track to a vehicle body controller through the RSU and the OBU so as to control the vehicle to park automatically according to the driving track, and meanwhile, updates the driving track in real time or notifies the vehicle of emergency braking based on the field end environment information acquired in real time until parking is completed. The system adopts the method to solve theproblems that in the prior art, accidents are easily caused by visual blind spots at the vehicle end and the path cannot be adjusted in time in the implementation scheme of automatic valet parking.

The invention discloses a novel intelligent carrier and a control method thereof and belongs to the technical field of the industrial automatic control. The novel intelligent carrier is characterized by comprising a material mover and a mainframe control unit. The material mover comprises a mechanical gripper module and a transfer module which are used for realizing the functions of loading and moving parts, an obstacle avoidance module for automatically avoiding an obstacle and for emergency braking, a driving module for driving an advancing mechanism and the motors of the mechanical gripper module and the transfer module, and a limiting module, a monitoring module, a first wireless receiving module and a second wireless receiving module which are all matched with a first wireless transmission module, a second wireless transmission module, a central processing unit, a human-machine interface module and a hand-held intelligent device of the mainframe control unit to realize automatic control of the material mover. The novel intelligent carrier is capable of realizing the functions of intelligent control and obstacle avoidance, as well as moving of parts different in size and applicable to factory environments of unfixed route carrying random object placement positions, and further is capable of meeting the requirements of field material transportations in factories and convenient to popularize and utilize.

The invention relates to an automatic emergency braking system based on an AEB system, which is characterized in that the system comprises an environment sensing mechanism, a control strategy and an actuating mechanism. The environment sensing mechanism collects the driving state of the automobile in real time and processes the corresponding data through the control strategy; The control strategydiscriminates the data processing result collected by the environment sensing mechanism through the control strategy, and the execution mechanism executes the operation according to the discriminationinformation of the control strategy. When the system detects a potentially dangerous target object in front of the vehicle, it will alert the driver of the risk and take pre-braking measures if necessary; If the driver's instructions are not received within the reaction time, the system partially brakes to slow the vehicle and then stops the vehicle with a full brake to help the driver avoid a collision or mitigate post-collision damage.

An anti-collision emergency braking system enables emergency information transferring from leading vehicle to trailing vehicle and enables emergency automatic braking. It comprises a central commanding element which takes input from a number of sensing elements and gives commands to other acting elements: a receiver which receives emergency signals from the leading vehicle, a transmitter which sends out emergency signals toward the trailing vehicle, an accelerometer which senses the acceleration extents of the present vehicle, an automatic braking element which applies certain amount of braking power after receiving the commands from the central commanding element, and one or more warning elements.

The embodiment of the invention relates to a decision-making method of autonomous emergency brake, vehicle-mounted equipment and storage media. The decision-making method comprises the following stepsthat an obstacle in front of a vehicle is sensed; a minimum collision distance between the vehicle and the obstacle is determined based on the state of an autonomous emergency brake system, wherein the minimum collision distance is related to the state of the autonomous emergency brake system; and decision information of the autonomous emergency brake is generated based on the minimum collision distance. According to the embodiment of the invention, the minimum collision distance is associated with the state of the autonomous emergency brake system, so that the minimum collision distance between the vehicle and the obstacle is determined based on the state of the autonomous emergency brake system, premature or late intervention of the autonomous emergency brake and premature or late release are avoided, and the subjective and objective feeling of a driver is considered; and the decision information of the autonomous emergency brake is generated on the basis of the minimum collision distance, the possible collision events are distinguished, autonomous emergency brake is taken in time, so that the possibility and the severity of collision occurrence are reduced.

An autonomous emergency braking system for performing emergency braking when a potential collision object is recognized during traveling of a vehicle, comprises a camera, a radar sensor and an electronic control unit. The camera is installed in the vehicle to acquire an image signal of a proximity of the vehicle. The radar sensor is configured to detect an object located in a preset detection region from the vehicle. The electronic control unit is configured to, when a counterpart vehicle is located adjacent to a pedestrian, generate a pedestrian detection signal that is not included in a detection signal acquired by the radar sensor, and recognize the pedestrian by fusing the generated pedestrian detection signal and a pedestrian detection signal detected by the camera.

The invention relates to an automatic emergency braking decision-making method based on multisensor fusion data. The automatic emergency braking decision-making method comprises the following steps: sensing an obstacle in front of a vehicle; based on the multisensor fusion data, carrying out secondary screening on the obstacle to obtain an effective obstacle; wherein the effective obstacle is determined by an automatic emergency braking system; determining the minimum collision distance between the vehicle and the effective obstacle; and based on the minimum collision distance, generating thedecision-making information of automatic emergency braking. According to the automatic emergency braking decision-making method, the possibility of a reporting failure is reduced through the multisensor fusion technology, and the minimum collision distance is relevant to the state of the automatic emergency braking system, so that premature or too-late intervention and premature or too-late release of automatic emergency braking are avoided, and the subjective and objective feelings of a driver are taken into consideration; and the automatic emergency braking decision-making information is generated based on the minimum collision distance to reduce collision probability and severity.

The invention relates to a braking system with an electronic braking assisting function, comprising an electronic vacuum booster, an electronic vacuum booster controller, an original automobile ABS (anti-skid braking system) and braking cylinders. The electronic vacuum booster comprises an electromagnet core, an electromagnet coil and an electrical bushing which are arranged in a vacuum valve, wherein atomspheric valves are arranged in the electromagnet core and the electrical bushing and in close contact with a rubber valve seat, and a gap is left between the electrical bushing and the rubber valve seat; the electronic vacuum booster controller is provided with the braking pressure threshold value, the emergent braking assisting mode work time threshold value and the actual braking pressure change rate threshold value in advance and is used for receiving the expectant braking pressure signal, the actual braking pressure signal and the driver braking signal sent out by a driving assisting system from an automobile CAN (controller area network) bus, comparing all the received signals with all the threshold values, judging and outputting current to the electromagnet coil; the original automobile ABS is connected with a braking main cylinder of the electronic vacuum booster through a pipe; and all the braking cylinders are connected with the original automobile ABS through pipes.The invention can be widely applied to the driving assisting system such as the adaptive cruise control system, the stop and go cruise system, the collision avoidance system, the emergent braking assisting system and the like.

The invention discloses a method of prewarning running automobiles and avoiding collision, which comprises the following steps: the distance L between an automobile and an obstacle is collected by utilizing a macrometer; the running speed V information of the automobile is collected by the macrometer; and the controller outputs a control signal to a warner or a forced speed reducer or an emergency brake and an emergency brake and rear warning lamp according to different situations. The invention further provides a system for prewarning running automobiles and avoiding collision, which comprises a hand brake switch, a steering switch, a macrometer, a velometer, a data collecting and processing unit and a controller, wherein the controller is used for receiving signals of the data collecting and processing unit and outputting control signals to the warner or forced speed reducer or emergency brake and the emergency brake and rear warning lamp. By adopting the scheme, during automobile running, not only a driver can be warned to avoid collision accidents, but also the forced speed reducer or the emergency brake and the like can be automatically controlled and started, to help the driver take measures to prevent the occurrence of accidents.

A brake tensioning system and method are described herein for use on vehicles. The system includes a tool, and the method includes the use of the tool to effectuate tensioning of a brake system conveniently, accurately, and repeatably.

The invention discloses a cut-in vehicle monitoring method and system. The cut-in vehicle monitoring method comprises the steps of obtaining a curvature radius of a fixed-curvature running path of a vehicle on the basis of motion information of the vehicle; converting motion information of a cut-in vehicle to be under a coordinate system of the fixed-curvature running path of the vehicle through the curvature radius so as to obtain relative motion information, relative to the fixed-curvature running path, of the cut-in vehicle; when it is determined that the cut-in vehicle is in a preset cut-in vehicle position pre-warning area on the basis of the relative motion information and the cut-in vehicle is a transverse cut-in target vehicle threatening to the vehicle, controlling a longitudinalvelocity of the vehicle so as to realize an antedating response to the cut-in vehicle. Therefore, the collision risk between vehicles is greatly reduced, the running safety is enhanced, the performance of an automatic emergency braking system and the performance of a self-adaptive cruise system are improved, and meanwhile, the cut-in vehicle monitoring method and system are suitable for situationsthat the vehicle is on straightway and curve trajectories.

The invention relates to a driver assistance system for a motor vehicle (10), comprising at least one driving data sensor (20) for sensing driving data that characterizes the driving condition of the motor vehicle (10), and an electrical controller (26) which is designed to initiate autonomous emergency braking of the motor vehicle (10) when predetermined driving data has been sensed. According to the invention, a device is provided which is designed to detect a preceding vehicle (22) located in front of the motor vehicle (10) in the direction of travel of the motor vehicle (10). The electrical controller (26) is designed to maintain a brake of the motor vehicle (10) in a braking position or bring the brake into the braking position following an emergency braking action when the device detecting a preceding vehicle detects the preceding vehicle (22).