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381results about How to "Improve driving safety" patented technology

Method for fulfilling slope starting assist control function of electric automobile

The invention relates to a method for fulfilling a slope starting assist control function of an electric automobile. The method comprises the following steps of (1), determining an activating condition; entering a to-be-activated state of the function when a driver steps on a brake pedal, the automobile is in a static state, but a hand brake is not pulled upward and the gear of the automobile is a forward gear; and activating the slope starting assist control function if the automobile begins to slide after the driver releases the brake pedal; and (2), correcting the target value of the torque of a driving motor, rapidly increasing the output torque of the motor after the slope starting function is activated so that the automobile does not slide, and keeping the torque output to enable the automobile to be static in situ. When the driver steps down the accelerating pedal, the slope starting assist control function is withdrawn automatically, and the automobile is stably started on a slope. By accurately controlling the torque output of the motor when the automobile is started on the abrupt slope, sliding of the automobile is avoided under the condition that the hand brake is not pulled upwards, the driver can calmly move a foot from the brake pedal to the accelerating pedal, and slope starting is finished.
Owner:BEIJING ZHIXING HONGYUAN AUTOMOBILE CO LTD

Video monitoring and recording system for carrying tool

The invention discloses a video monitoring and recording system for a carrying tool. The video monitoring and recording system comprises vehicle-mounted equipment and a remote device, wherein the vehicle-mounted equipment comprises a camera, an vehicle-mounted diagnostic system and an intelligent terminal; the remote device is a remote server; the intelligent terminal comprises a geographic information system database, a global positioning system database and a video monitoring and communicating module, wherein the GIS (Geographic Information System) database is used for storing geographic information of a preset position; the GPS (Global Positioning System) database is used for providing vehicle position real-time information; the communication module is used for information transmission among internal devices of the system and information exchange between the system and the remote server; the camera and the vehicle-mounted diagnostic system are connected with the intelligent terminal; when the vehicle-mounted system senses that the vehicle reaches a position near the preset position by the GIS database and the GPS database, video monitoring is triggered, the camera is started to continuously pick up images and intercept continuous video monitoring data flow until the preset time is up or the vehicle leaves the preset position, video monitoring is turned off, and the information is uploaded to the remote server by the communication module.
Owner:SUZHOU QUNKAI INFORMATION SYST

Automobile navigation apparatus and navigation system using the same

The invention provides a vehicle-mounted navigation device, which comprises an input module, a current position detecting module, a memory, a micro controller and an output module, wherein the output module comprises a driver, projection equipment and a universal bracket; the input module is used for inputting commands and requests of a user to the vehicle-mounted navigation device; the current position detecting module is used for detecting the current position and the time of a vehicle; the memory is used for storing a digital map; the micro processor is used for calling the digital map in the memory to generate the road guiding according to the commands and requests inputted by the user and the current position of the vehicle, and outputting the generated result; and the output module is used for receiving road guiding information generated by the micro processor. The vehicle-mounted navigation device directly projects the road guiding information of the navigation system on front wind shield glass of the vehicle by utilizing the projection mode, thereby improving the driving safety of a driver; moreover, the invention also provides a navigation system utilizing the vehicle-mounted navigation device.
Owner:深圳市世纪经纬数据系统有限公司

Road junction driving auxiliary device for motor vehicle

The invention discloses a road junction driving auxiliary device for a motor vehicle. The road junction driving auxiliary device comprises an identification unit, a distance measuring unit, a speed measuring unit, a central processing unit and an early warning prompting unit, wherein the identification unit is used for collecting information of images in front of the motor vehicle in real time and analyzing and identifying the information, as well as sending related information to the central processing unit when a traffic light and a stop line at a road junction are identified; the distance measuring unit and the speed measuring unit are respectively used for sensing real-time speed of the motor vehicle and a distance between the motor vehicle and the stop line, and feeding the measured data back to the central processing unit; the central processing unit is used for calculating so as to judge whether the motor vehicle can safely pass the road junction or not according to the received data and image information, and corresponding voice prompt can be given by the early warning prompting unit. According to the device, the problem that a driver can not accurately judge whether the motor vehicle can safely pass the road junction or not is solved, and a good human-computer interface is provided, so that the burden of the driver is reduced, the driving safety is improved, and the transportation is facilitated.
Owner:HUAZHONG UNIV OF SCI & TECH

Physiologic signal monitoring system and method of driver

The invention discloses a physiologic signal monitoring system and a method of a driver. The system comprises a sensor module, an amplifying circuit, a filter circuit, a self-learning module, a CPU (Central Processing Unit) and an automobile control system, wherein the sensor module comprises a plurality of sensors for detecting a plurality of physiologic signals of the driver; the amplifying circuit is connected with the sensors of the sensor module and used for amplifying the physiologic signals detected by the sensors; the filter circuit is used for filtering the amplified physiologic signals to remove interfering signals; the self-learning module carries out self-learning to statistically obtain normal values of the physiologic signals of the driver and takes the normal values as reference values for judging whether the driver is in a fatigue driving state; the CPU acquires the physiologic signals of the driver and compare the physiologic signals with the reference values to judge whether the driver is in a drunk driving wait or fatigue driving state, and transmits a control signal to the automobile control system according to a compared result; and the automobile control system is controlled by the control signal transmitted by the CPU. The system and the method realize real-time monitoring of the physiologic signals of the driver.
Owner:SHANGHAI DIANJI UNIV

Brake control method for unmanned vehicle

The embodiment of the invention relates to a brake control method for an unmanned vehicle. The brake control method for the unmanned vehicle comprises the following steps: calculating a safety monitoring and control area of vehicle brake control; obtaining the current running speed of the vehicle, and calculating a safety distance according to vehicle brake parameters and the current running speed; monitoring whether an obstacle having a distance which is less than the safety distance, away from the vehicle, exists in the safety monitoring and control area or not; while detecting that the distance between the obstacle and the vehicle is not less than a preset emergency brake distance in the safety monitoring and control area, outputting a first-stage brake control instruction, and controlling the vehicle to brake by a first brake force; while detecting that the distance between the obstacle and the vehicle is less than the preset emergency brake distance in the safety monitoring and control area, determining the current maximum vehicle wheel rotation angle of the vehicle, outputting a second-stage brake control instruction when the current maximum vehicle wheel rotation angle is greater than a set rotation angle threshold value, and controlling the vehicle to brake by the maximum brake force; and outputting a first-stage brake control instruction when the current maximum vehicle wheel rotation angle is not greater than the set rotation angle threshold value, and controlling the vehicle to brake by the first brake force.
Owner:BEIJING ZHIXINGZHE TECH CO LTD

Passenger vehicle, and system and method for anti-rollover control for passenger vehicle

The invention discloses a system and a method for anti-rollover control for a passenger vehicle. The system comprises two distance measuring sensors which are mounted on two sides of the bottom of the passenger vehicle body symmetrically and are used for measuring the distances H1 and H2 between of either of the two sides of the passenger vehicle body and the road during steering process, an anti-rollover controller which is connected with the two distance measuring sensors and a brake device of the passenger vehicle and is used for calculating the rollover angle m of the passenger vehicle through calculating the ratio of the absolute value of the difference between H1 and H2 and the distance L between the two distance measuring sensors, and is used for sending rollover control signal to the brake device of the passenger vehicle when the rollover angle m is compared with the preset rollover value M and m is higher than M, and the brake device of the passenger vehicle, which is used for performing brake according to the anti-rollover control signal and reducing the steering speed of the passenger vehicle. According to the invention, the anti-rollover control of the passenger vehicle is performed according to the rollover angle of the passenger vehicle; active brake is performed for the passenger vehicle under condition that the passenger vehicle may roll over, so that the probability of rollover of the passenger vehicle is reduced, and the steering safety of the passenger vehicle is increased.
Owner:YANCHENG INST OF TECH

Gear-shifting correction system for automatic transmission and correction method for gear-shifting correction system

The invention discloses a gear-shifting correction system for an automatic transmission and a correction method for the gear-shifting correction system. The gear-shifting correction system is characterized by comprising a signal conditioning module, a signal acquiring and processing module, a processor and a solenoid valve drive module, wherein the processor comprises a travelling working condition identifying module, a driving intension identifying module, a decision-making module and a gear-shifting correction module. The correction method comprises the following steps: carrying out signal conditioning and acquiring on a sensor signal so as to acquire a signal required by the travelling working condition identifying module and the driving intension identifying module; carrying out travelling working condition and driving intension identification and split-flow processing, thereby obtaining a corrected object and an uncorrected object; and setting a response priority sequence and a corresponding gear-shifting correction parameter and a gear-shifting correction value of the of the corrected object, carrying out gear-shifting correction, and storing basic gear-shifting control parameters. According to the gear-shifting correction system and the correction method, gear-shifting control needs for different travelling working conditions and driving intensions can be met, and traveling safety, dynamic property and fuel economy of vehicles are improved.
Owner:HEFEI UNIV OF TECH

Vehicle driving control method and device of pure electric vehicle

The invention provides a vehicle driving control method and device of a pure electric vehicle. The vehicle driving control device comprises a power supply gear connected with a vehicle control unit, an accelerator pedal, a brake and gear detecting circuit, a BMS, an MCU, an ABS and a control circuit. The vehicle control unit obtains the working current, the total voltage, the maximum charging power permitted by a battery management system, the maximum discharge power, the battery electricity, the motor rotating speed, the motor real-time torque, the motor failure state signal, the brake locking prevention signal, the three signals (working state, output current and voltage signals) of a DC converter, the working state, the output current, the voltage signals, the three signals of an air conditioner, a steering pump and a blast pump, the accelerator pedal signal, the brake pedal signal, the gear signal, the downhill auxiliary signal and the power supply gear signal, the actual consumption and required power of a power system are calculated according to the signals, the absolute value of the difference of the actual consumption and the required power is larger than or equal to a preset value, and a zero torque signal is sent to the MCU and/or a cut-off signal is sent to the control circuit when preset time is up, and the pure electric vehicle is high in driving safety.
Owner:JASMIN INT AUTO RES ANDDEV BEIJING CO LTD

Velocity-limiting mark recognizing and vehicle-velocity control method and system based on vehicle traveling recording instrument

The invention discloses a velocity-limiting mark recognizing and vehicle-velocity control method and system based on a vehicle traveling recording instrument. The method includes the steps that the vehicle traveling recording instrument collects an image through a camera in real time and carries out intensification and de-noising processing on the image; the processed image is compared with a pre-stored database template with a road velocity-limiting mark to judge whether the velocity-limiting mark exists in the image or not, and if the velocity-limiting mark exists in the image, the velocity-limiting mark is recognized to obtain the velocity-limiting velocity; the current vehicle velocity is adjusted according to the obtained velocity-limiting velocity. According to the velocity-limiting mark recognizing and vehicle-velocity control method and system, the vehicle-traveling velocity-limiting mark exists in a current road section is automatically recognized through the vehicle traveling recording instrument of a vehicle, a control command is output according to the recognition result, and the vehicle velocity is automatically controlled; meanwhile, a driver learns the velocity-limiting information of a road in real time, the driving safety of the driver is improved, and unnecessary traffic accidents are reduced.
Owner:GUANGDONG COAGENT ELECTRONICS SCI & TECH

Port-environment-oriented man-machine hybrid automatic driving test method and test platform thereof

The invention discloses a port-environment-oriented man-machine hybrid automatic driving test method and a test platform thereof. On the basis of SCANeR, a vehicle driving environment required by a test is created; a vehicle model is established according to vehicle parameters, the detection of a simulation sensor is far away from a virtual vehicle-mounted sensor system, and whether the vehicle model can sense the road environment, plan a driving route automatically, and control the vehicle to reach a predetermined target through the vehicle-mounted sensor system of the vehicle model is detected in a virtual vehicle driving environment, and the boundary of the automatic driving function is verified. The vehicle model and the vehicle-mounted sensing system are virtualized, and virtual testing is firstly carried out; in a virtual test, real-time man-machine switching driving modes can be realized through a driving simulator, so that the vehicle driving safety is improved. Moreover, automatic driving trajectory planning, trajectory tracking and execution controller performance of the vehicle model under different traffic scenes can be virtualized according to test requirements in thevirtual test, so that the test cost is effectively reduced, and test efficiency is improved.
Owner:CHANGJIAFENGXING SUZHOU INTELLIGENT TECH CO LTD

Steering prompting method and device

The invention discloses a steering prompting method and device and belongs to the technical field of vehicle steering prompting. The method comprises the steps as follows: detecting the sight three-dimensional space angle of a driver in real time based on a face recognition technology when the steering intention of the driver is obtained; judging whether the angle is within a preset range, and starting a rearview mirror watching promoting system to prompt the driver to watch a rearview mirror if the angle is not within the preset range. The sight three-dimensional space angle of the driver is detected in real time based on the face recognition technology, whether the angle is within the preset range is judged, the rearview mirror watching promoting system is started to prompt the driver to watch the rearview mirror if the angle is not within the preset range, when the steering or lane changing intention of the driver is obtained, whether the driver watches the rearview mirror and knows about the information of the road behind are monitored in real time, the driver is intelligently prompted to watch the rearview mirror if the fact that the driver does not watch the rearview mirror is discovered, and accordingly, the driving safety is improved, and the user experience is improved at the same time.
Owner:LETV HLDG BEIJING CO LTD +1
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