176 results about "Active safety systems" patented technology

According to one embodiment, an active safety control system for a driver of a vehicle is provided when the vehicle is in a first perturbed state. The system generally includes a plurality of sensors, an actuation system and a controller. The plurality of sensors are operable to generate signals which indicate that the vehicle is in the first perturbed state. The actuation system is adapted to change driving conditions of the vehicle. The controller is configured to selectively control the actuation system in response to the signals without driver intervention to change the driving conditions of the vehicle to regain control of the vehicle after the vehicle has entered the first perturbed state.

A method for prioritizing potential threats identified by vehicle active safety systems. The method includes providing context information including map information, vehicle position information, traffic assessment information, road condition information, weather condition information, and vehicle state information. The method calculates a system context value for each active safety system using the context information. Each active safety system provides a system threat level value, a system braking value, a system steering value, and a system throttle value. The method calculates an overall threat level value using all of the system context values and all of the system threat level values. The method then provides a braking request value to vehicle brakes based on all of the system braking values, a throttle request value to a vehicle throttle based on all of the system throttle values, and a steering request value to vehicle steering based on all of the system steering values.

In an on-vehicle information providing device including an input device 1 for inputting information corresponding to operation, on-vehicle information equipment 2 for executing processing corresponding to the information input, an active safety system 3 for monitoring surrounding conditions of the vehicle and generating caution information, a liquid crystal display device 4 for displaying a processing result of the on-vehicle information equipment, and a head-up display (HUD) 5 for displaying the information delivered from the on-vehicle information equipment or from active safety system, the on-vehicle information equipment sends, if any display interrupt request is made from the active safety system during execution of the display processing onto the HUD, a display switching control request to the HUD by suspending the display processing, and the HUD switches from a state of displaying the information from the on-vehicle information equipment to a state of displaying the information from the active safety system in response to the display switching control request from the on-vehicle information equipment.

A vehicle warning system includes a vehicle having first and second outer zones and a passenger compartment. A first active safety system monitors the first outer zone and generates first warning signals. A second active safety system monitors the second outer zone and generates second warning signals. A vehicle audio output device includes a plurality of speakers that are located in the vehicle passenger compartment. The first warning signals are output to a one or more of said speakers of the vehicle audio output device at a first frequency. The second warning signals are output one or more of said speakers of the vehicle output audio device at a second frequency.

The invention relates to an automotive safety system, in particular to an omni-directional automotive active safety system with an integrated five-channel video detection function. The omni-directional automotive active safety system comprises a sensing subsystem, an analysis and decision subsystem and an early warning subsystem; the sensing subsystem comprises a video acquisition module, a body information acquisition module and a system setting input module; the analysis and decision subsystem comprises a lane departure module, a front automobile detection module, a pedestrian detection module, a blind zone detection module, a rear automobile detection module and a driver monitoring module; and the early warning subsystem comprises a video early warning unit and an audible alarm unit. The omni-directional automotive active safety system has the advantages that a lane departure condition of an automobile with the omni-directional automotive active safety system, distances from the automobile to automobiles in front of the automobile, distances from the automobile to pedestrians, a blind zone condition, distances from the automobile to automobiles at the rear of the automobile and a driving state of a driver are monitored in real time by realizing the integrated five-channel video detection function for the automobile, the driver is timely reminded when risks are sensed, and shortcomings of a simple single-channel video function and incomprehensive detection environments are overcome.

The invention relates to a vehicle-mounted navigation and active safety system based on a mobile equipment camera. The vehicle-mounted navigation and active safety system comprises mobile equipment with a camera, a remote server, a processor, a display screen, a vehicle-mounted global position system (GPS), wireless communication equipment and alarm equipment, wherein the mobile equipment, the vehicle-mounted GPS, the display screen and the alarm equipment are connected with the processor; the processor is connected with the remote server through the wireless communication equipment or is directly connected with the remote server through the mobile equipment; the mobile equipment is arranged on a front windshield of the vehicle through a bracket; and the camera of the mobile equipment is arranged towards the front of the vehicle. Compared with the prior art, the vehicle-mounted navigation and active safety system is convenient to use, and the running safety can be effectively improved.

The invention discloses an active safety system and an active safety method of a vehicle and belongs to the field of vehicle safety. The system comprises a detection module, an analysis module and an execution module, wherein the detection module is used for detecting a distance between the vehicle and a surrounding object, and a relative speed; the analysis module is used for comparing a detected value of the detection module with a preset safety distance value and analyzing to obtain a traveling policy; the traveling policy comprises a pre-determined traveling speed and pre-determined traveling direction; and the execution module is used for controlling a plurality of control devices on the vehicle to operate according to the traveling policy. The method comprises the following steps of: detecting the distance between the vehicle and the surrounding object, and the relative speed; comparing the detected value with the preset value and analyzing to obtain the traveling policy, wherein the traveling policy comprises the pre-determined traveling speed and the pre-determined traveling direction; and controlling the plurality of control devices on the vehicle to operate according to the traveling policy. The invention has the advantage that: by guiding a user to a safe traveling road, the driving safety of the user is improved.

The invention discloses an automobile active safety system based on video recognition and a vehicle ad-hoc network. The automobile active safety system mainly comprises a video acquisition module, a processing module, a short distance communication module, a master control module and an output module. By installing the modules on an automobile, automobiles in front of or behind the automobile can be connected to form a mobile ad-hoc network so as to transmit automobile positions, plate numbers, speed and other information in the network, and active and safe protection of automobiles can be achieved.

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.

An apparatus for controlling safety and preventing accidents at the workplace comprising: a plurality of RF transceivers (11), each associated with either a garment or an accessory or an instrument to be used by an operator when engaged in an area of concern, a plurality of illuminating actuators (12, 14, 16) and receivers (13, 15, 17), each of which associated with either the apparatuses or the structures or parts thereof arranged in said area of concern, said RF transceivers (11) being configured to form a network of PAN or BAN type, and comprising at least one RF transceiver (10) configured as a MASTER of said PAN or BAN network, characterized in that at least one of said RF transceivers comprises a dual-frequency controlled RFID transmitter device (10).

The invention discloses an automobile power lithium battery box with an active safety system and a matched control method, and belongs to the field of automobile safety. The automobile power lithium battery box comprises a first CAN bus, a second CAN bus, a third CAN bus, a plurality of lithium battery packs, a plurality of BMU collection terminals, a BMS controller, a fire extinguisher host, a fire extinguisher, a VCU controller, a display screen, a manual fire extinguishing operation panel and a motor control module. According to the box and the method, an early warning of fire alarm security risks is realized; and an automatic fire extinguishing function after an early warning of the battery box is invalid or a fire breaks out suddenly is realized.

The invention relates to a vehicle environment perceiving and controlling method based on cloud machine learning. The method comprises the steps that A1, image data of dead zones of the front portion, the rear portion and behind the left side and the right side of a vehicle, and millimeter wave radar data of a barrier in the area in front of the vehicle are collected; A2, character vector sets of the image data are extracted, and the distance between the barrier in front of the vehicle and the vehicle is obtained by processing the millimeter wave radar data of the barrier; A3, machine learning is conducted on all the character vector sets, and barriers on the front side, the rear side, the left side and the right side are recognized; A4, target tracking is conducted, and environment perceiving data of a target and current state data of the vehicle are obtained; A5, the safe distance is worked out, and active vehicle safety control is executed correspondingly; and A6, the environment perceiving data of the target are uploaded to a cloud service system for learning, and finally target recognition parameter sets and algorithm control parameter sets are upgraded. By the adoption of the vehicle environment perceiving and controlling method, the accuracy of environment perceiving, the vehicle control precision and measurement distance are effectively improved, and the performance of an active vehicle safety system is improved integrally.

The invention discloses a lane changing assistance early warning system. A right rear radar sensor and a left rear radar sensor used for detecting the two sides of the rear area are arranged on the two sides of a vehicle respectively, the right rear radar sensor and the left rear radar sensor output detection signals to a main control unit through a CAN bus, and the main control unit outputs a warning signal to a warning control unit. The early warning system is realized based on a lane changing assistance control unit of a single-chip microcomputer system and the DSP-based millimeter-wave radar sensors installed on the two sides of the rear area of the vehicle, and communication between the lane changing assistance control unit and the millimeter-wave radar sensors is achieved through the CAN bus; furthermore, the early warning system can be expanded by adding algorithms and radar modules, the expandability of the system is improved, and then an active safe system capable of achieving rear collision prevention, door opening warning and front collision prevention is obtained.

The invention discloses a device and a method for testing automotive active safety systems on a bench. The device comprises a camera bellow, a to-be-tested system, a display, an upper computer and a lower computer. Scene animation required by tests is generated by the upper computer and is displayed via the display; the scene animation is acquired by the to-be-tested system; movement of a to-be-tested automobile is simulated by the lower computer in real time, the lower computer is communicated with the to-be-tested system via a CAN (controller area network) bus, automobile state and driver operation information is transmitted to the to-be-tested system, and bus data transmitted by the to-be-tested system are received; the lower computer is communicated with the upper computer via a network cable, and running data of the automobile are transmitted to the upper computer, so that the scene animation can be updated in real time; the upper computer is further used as a test managing and monitoring platform. The device and the method have the advantages that active safety tests are carried out on the automobile on the bench, so that field tests or field data acquisition can be omitted, test workload can be reduced, test risks and the test cost can be decreased, and the test repeatability can be improved; large test working condition databases can be omitted, and accordingly the test working condition data can be conveniently managed.

The invention belongs to the reactor design technology, and particularly relates to an active and passive combined heat removal device for containment. The active and passive combined heat removal device structurally comprises a containment spraying system and a passive containment heat leading-out system; one end of a pipeline of the containment spraying system is connected with a refueling water tank, and the other end of the pipeline of the containment spraying system is connected to a spraying header on the top of the containment by a spraying pump and a heat exchanger; and the passive containment heat leading-out system comprises a heat exchanger or heat exchanger set, the heat exchanger or heat exchanger set is arranged in the containment and is connected with a heat exchange water tank by a riser pipeline or a downcomer pipeline, and the heat exchange water tank is arranged on the outer portion of the containment, and is higher than the heat exchanger or heat exchanger set. The active and passive combined heat removal device has the advantages that dependence of the traditional nuclear power plant with an active safety system on a safety power source is changed, and intrinsic safety of a heat removal system of the containment of a nuclear power plant is improved.

The invention discloses an automobile active safety system based on monocular machine vision and a control method thereof. The system comprises an input device, an output device and a processor. The input device comprises a speed transducer, an acceleration transducer, a brake signal transducer and a camera. The output device is a brake actuator. The method comprises the following steps: performing internal and external calibrations by the camera; collecting target obstacle information by the camera, and calculating the distance between the automobile and the target obstacle in real time by the processor; calculating the safety distance under the current operating mode; and judging whether the distance between the automobile and the target obstacle is less than the safety distance, and determining whether the brake actuator brakes automatically according to whether a driver brakes. By adopting a method for measuring distance based on single-frame static images and a method for setting the safety distance reflecting the driving characteristics of the driver, the safety system has high precision and strong adaptability.

The invention provides an anti-scratch device and method used during vehicle turning. The anti-scratch device comprises two laser scanning radars installed on the left side and the right side of a front bumper of a vehicle correspondingly, a steering wheel angle sensor installed on a steering shaft of a steering wheel of the vehicle, an intelligent CAN converter, an alarm prompt unit and a processing unit. The anti-scratch device and method used during vehicle turning have the beneficial effects that the laser scanning radars are used for obtaining the road environment information around the vehicle, laser radar detection is not disturbed by ambient light, and the recognition precision is high. Meanwhile, a vehicle track is determined according to the angle of the steering wheel, the next position of the vehicle is further determined, and a system has high predictability; and the method is simple, and the advanced active safety system is obtained.

The present invention relates to an active safety system and a method for operating the same. A method for use in an active safety system installed on a host vehicle is provided. The method comprises acquiring, for each of a plurality of target objects in the path of the host vehicle, a value of a parameter that is representative of a likelihood that the host vehicle will collide with the target object. In an exemplary embodiment, the parameter that is utilized comprises a time-to-collision between the host vehicle and the target object. The method further comprises evaluating one or more of the acquired parameter values to determine if the host vehicle is likely to collide with one or more of the target objects, and triggering one or more collision avoidance measures when it is determined that the host vehicle is likely to collide with one or more of the target objects. An active safety system configured to perform the methodology is also provided.

An active safety system for a machine and a process for operating the active safety system are disclosed. The active safety system an active ultrasonic array having a plurality of ultrasonic transducers. The plurality of ultrasonic transducers can propagate a plurality of sound waves, receive a plurality of echo waves and transform the plurality of echo waves into a plurality of electrical pulses. The plurality of electrical pulses can be transmitted to and received by a three-dimensional imaging circuit. The three-dimensional imaging circuit can generate a 3D image from the plurality of electrical pulses and an electrical control unit can determine a location, size and geometric orientation of the 3D image. The electronic control unit can also provide an occupant safety parameter as a function of the location, size and geometric orientation of the 3D image and transmit the occupant safety parameter or an instruction related to the occupant safety parameter to an occupant safety system and/or an occupant warning system.

The invention discloses a prediction method of automobile active safety system effectiveness on the basis of collision deformation depth. The prediction method comprises the following steps: 1) determining an automobile group with similarity rigidity; 2) determining a relationship between EES (Energy Equivalent Speed) and the deformation depth and the relationship between the deformation depth and an injury risk; and 3) establishing an accident reconstruction database, building a control system to carry out accident simulation, combining the relationship between the EES and the deformation depth with the relationship between the deformation depth and the injury risk, calculating and comparing whether the injury risk of the safety system in an accident scene is in the presence or not, and obtaining whether the safety system is effective in improving automobile safety through a comparison result. The prediction method discusses and looks forwards a way of utilizing a deformation degree to predict the automobile active safety system effectiveness on an aspect of the reduction of passenger injury risks only on the basis of the accurate deformation degree information in the accident database. Compared with a method which utilizes speed information, the prediction method disclosed by the invention can obtain more accident data support and more comprehensively evaluates the automobile active safety system.

The invention discloses a pure drive-by-wire automobile braking system. The system comprises a magnetorheological transmission drive-by-wire brake, a sensor subsystem, an upper-layer controller ECU and lower-layer controllers UC. The system adopts a hierarchical control method for upper and lower layers, and the upper-layer controller ECU acquires the motion posture of a vehicle and the control intention of a driver according to system state information fed back by the sensor subsystem and controls the magnetorheological transmission drive-by-wire brake to achieve braking through the lower-layer controllers UC. The system can solve the problems of complex hardware and short service life of an existing drive-by-wire braking system and achieve various active safety system functions under thecondition of a certain hardware basis.

The present invention relates to an intelligent damping type automobile active safety system. It includes automobile chassis, front-mounted bumper and automatic brake. The described automatic brake is characterized by that in the front portion of automobile an intelligent radar range finder is mounted, besides, along the periphery of automobile chassis and on the top portion of said automobile the radar range finders and damping bars are uniformly mounted. Said invention also provides the working principle of said safety system and its concrete operation method.