Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1436results about How to "Driving safety" patented technology

Four-wheel independently driven electric vehicle torque distribution control method and system

The invention relates to a four-wheel independently driven electric vehicle torque distribution control method and a four-wheel independently driven electric vehicle torque distribution control system. The method comprises the following steps of (1) acquiring a driver operation action signal and vehicle driving parameters in real time, and after pre-processing the acquired data, storing the data; (2) according to the data acquired in the step (1), identifying the current driving intention of a driver; (3) according to the driving intention identifying result, adopting a corresponding control policy to control, and according to the control policy, sending a torque control order to each driving motor. The system comprises a data acquiring module, a driving intention identifying module and a torque distribution control module which are sequentially connected. Compared with the prior art, torque can be reasonably distributed to four wheels according to the driving intentions of the driver, such as ordinary acceleration, fast acceleration and turning driving, the energy utilization of the finished vehicle is improved, meanwhile, the driving stability of the vehicle under a limited condition can also be improved, and the advantage of independent driving is fully played.
Owner:SHANGHAI UNIV OF ENG SCI

Obstacle clustering method and obstacle clustering device

The invention relates to an obstacle clustering method and an obstacle clustering device. The method comprises steps: three-dimensional point cloud data are acquired, and coordinates of a mapping point on a vehicle body coordinate system are determined; the mapping point is projected to a grid map; an obstacle point is recognized according to the mapping point coordinates and the grid map; the obstacle point is clustered to acquire K obstacle clustering clusters and K clustering centers; the similarly between the obstacle point and each clustering center is calculated, and the obstacle point is divided to an obstacle clustering cluster corresponding to a clustering center with the highest similarity; the clustering center is updated; whether each clustering center meets a convergence condition is judged; and when a clustering center not meeting the convergence condition exists, the step of calculating the similarly between the obstacle point and each clustering center and dividing the obstacle point to an obstacle clustering cluster corresponding to a clustering center with the highest similarity is returned until all clustering centers meet the convergence condition. Thus, obstacle clustering can be realized accurately and reliably, and the obstacle recognition rate can be improved.
Owner:BEIJING AUTOMOTIVE IND CORP +1

Fog region driving safety intelligent guiding system and method

ActiveCN103500519AIncrease blinking frequencyFull warningAnti-collision systemsTraffic signalsVisibilityRear-end collision
The invention relates to a fog region driving safety intelligent guiding system and a fog region driving safety intelligent guiding method. The system comprises at least one visibility detector, a plurality of active light emitting induction facilities and a controller; the active light emitting induction facilities are arranged at certain intervals along a road and emit light in different modes under the control of the controller; each visibility detector is used for sending detected visibility information to the controller; and the controller is used for controlling the active light emitting induction facilities to work in the specific modes on the basis of the visibility information. The method comprises the following steps: detecting visibility of a road region; and when the visibility is less than a first threshold value, but more than a second threshold value, starting a first mode to enable the active light emitting induction facilities to flicker under a first frequency, and when the visibility is less than the second threshold value, but more than a third threshold value, starting a second mode to enable the active light emitting induction facilities to flicker under a second frequency. According to the invention, vehicles can be reliably guided to safely run under the condition of low visibility, warning of safety vehicle intervals is provided in real time and serial rear-end collision is effectively prevented.
Owner:北京中交华安科技有限公司 +1

Method for determining deviation of a mobile object in a navigation system from a travel route

A travel route stray discriminating method of a mobile object in navigation system is disclosed in which discrimination of travel route deviation is temporarily withheld even if the mobile object has deviated from the travel route on a busy road such as a cross-road, and a warning that the mobile object has deviated from the travel route is issued if it is accurately discriminated that the mobile object has strayed from the travel route. The method comprises: a controller searching for a travel route of a mobile object, discriminating a current location of the mobile object if the mobile object travels along the searched travel route and displaying on a display unit by matching the discriminated current location of the mobile object to a stored map data, and initially discriminating the deviation of the mobile object from the travel route by a link on which the mobile object travels, a travel angle of the mobile object and whether the mobile object has deviated from the link; the controller secondly and thirdly discriminating absence and presence of a guidance subject point based on the travel distance of the mobile object; and the controller controlling a sound signal generating unit and issuing a warning that the mobile object has deviated from travel route if the mobile object is thirdly discriminated to have deviated from the travel route.
Owner:LG ELECTRONICS INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products