11results about How to "Safe driving" patented technology

This utility model discloses a nighttime driving safety enhancement device at the nose of a highway, belonging to the field of highway traffic safety technology. This utility model uses nighttime vision guidance components deployed on the mainline and ramp guardrails in a designated area to continuously guide drivers in anticipating changes in traffic flow, preventing sudden accidents. Illuminated warning components behind the small nose point alert drivers to entering critical areas, while reflective guide components in front help predict road direction. Warm yellow and pure white guidance lights are respectively installed on the left and right sides to help determine road boundaries, with continuous lighting guiding the driver's line of sight along the road. A segmented guidance system is adopted: constant illumination at long distances provides stable guidance, flashing at medium distances enhances warnings, and constant illumination at close distances reduces visual fatigue. This effectively solves the problem of unstable visibility and warning effects of existing devices in the nose area at night and in low-visibility environments, and ensures guidance effectiveness under adverse conditions through a combination of active and passive illumination.

The application discloses a minimum risk control method of an automatic driving vehicle and the automatic driving vehicle, relates to the field of automatic driving vehicle control, and acquires distance information detected by a ranging module; determines a second coordinate of a target obstacle according to the distance information, a first coordinate of the ranging module in a preset reference coordinate system, so as to determine a second moving speed of the target obstacle in combination with a first moving speed of the automatic driving vehicle; determines a predicted collision time according to the second coordinate, the second moving speed and a preset collision prediction strategy, finally determines a risk level of the target obstacle to the automatic driving vehicle, and controls the automatic driving vehicle to perform an operation corresponding to the risk level. According to the scheme, the risk level of the target obstacle to the automatic driving vehicle is more accurately determined from three dimensions of the predicted collision time, the coordinate and the moving speed of the target obstacle, so that the automatic driving vehicle performs the operation corresponding to the risk level, and the effectiveness and reliability of the minimum risk control scheme are improved.

The invention discloses a road recognition method and device, equipment and a storage medium, and belongs to the field of intelligent driving. The problem that a vehicle cannot effectively recognize a road boundary can be solved. The method comprises the following steps: acquiring a first point cloud and a second point cloud of a road within a preset range around a vehicle through a first point cloud acquisition device and a second point cloud acquisition device; performing point pair matching on the data of each frame of the first point cloud and the second point cloud to obtain a distance deviation value of the first point cloud and the second point cloud; determining a reflecting surface normal vector angle of the first point cloud; and determining the pavement condition of the road according to the normal vector angle of the reflecting surface and the change characteristics of the distance deviation value.

This invention provides a vehicle field of view expansion display method, device, vehicle, and storage medium. The method is applicable to the vehicle control center in a vehicle vision assistance system. The vehicle vision assistance system also includes a field of view acquisition device and a field of view display device connected to the vehicle control center. The field of view acquisition device is installed on the vehicle and located in the vehicle's blind spot. The method includes: real-time acquisition of the vehicle's speed, system resource information, the field of view display resolution of the field of view display device, and the field of view image sent by the field of view acquisition device; determining the display frame rate of the field of view image based on the vehicle speed, system resource information, and field of view display resolution; and sending the field of view image to the field of view display device for display at the specified frame rate. This method of expanding the driver's field of view by installing a field of view acquisition device in the vehicle effectively eliminates the driver's blind spot, thereby ensuring safe driving.

The utility model discloses an automobile footrest, which relates to the technical field of automobile accessories and comprises a fixing plate, the fixing plate is obliquely arranged on the side wall of an automobile interior trim panel, a rotating rod is mounted at the lower end of the side wall, close to the automobile interior trim panel, of the fixing plate, and the rotating rod is rotatably connected to the automobile interior trim panel. A driving mechanism used for driving the rotating rod and the fixing plate to swing is arranged on the vehicle body interior trimming plate at the end, away from the fixing plate, of the rotating rod. The rotating rod used for driving the fixed plate to swing is arranged at the lower end of the fixed plate, and the driving part of the rotating rod is arranged on the inner side of the vehicle body interior trim panel and the inner side of the vehicle body, so that the whole device is very simple, and the influence on vehicle driving of a user is avoided; the motor is controlled to drive the fixing plate and the bearing plate to swing by a certain angle at set intervals, and the situation that the fixing plate and the bearing plate are fixed at an angle for a long time, and consequently feet of a user feel uncomfortable is avoided.

This utility model belongs to the field of intelligent connected vehicle safety alarm technology, and particularly relates to an intelligent connected vehicle safety alarm device, including a fixing plate. In this intelligent connected vehicle safety alarm device, limit blocks are fixedly connected to both sides of the fixing plate, a protective frame is provided on the top of the fixing plate, and a dustproof and heat dissipation component is provided on the side of the protective frame. By setting the dustproof and heat dissipation component, a slider first slides inside a groove, thereby driving the dustproof net inside the mounting plate to move up and down. Then, a second movable block moves up and down on top of the first movable block. When the dustproof net is closed, a locking block is engaged in a rectangular groove, and under the action of a spring, a limiting rod is engaged inside the groove, thus fixing it. Conversely, it can be disassembled and cleaned regularly, which can reduce the occurrence of such problems from the source and provide strong protection for the safe driving of intelligent connected vehicles.

The utility model discloses a height difference torque vector distribution device which comprises a differential mechanism, a left half shaft is connected to one end of the differential mechanism, and a right half shaft is connected to the other end of the differential mechanism; a motor is arranged on one side of the left half shaft, a first-stage speed reduction assembly is arranged on the motor, a third-stage speed reduction assembly is arranged on the left half shaft, and the third-stage speed reduction assembly is in transmission connection with the first-stage speed reduction assembly through a second-stage speed reduction assembly; the three-stage speed reduction assembly transmits received power to the planetary gear assembly, and a first gear ring and a second gear ring on the planetary gear assembly transmit the power to a shell and a left half shaft of the differential mechanism respectively. The beneficial effects of the utility model are mainly reflected in that the arrangement has a torque distribution function, and gives consideration to the energy consumption problem and driving experience in yaw dynamics control; and the energy consumption problem and the driving experience in yaw dynamics control are considered.

A vehicle control method and apparatus, belonging to the field of vehicle technology, are disclosed. During the travel of a first vehicle in a first lane, a second vehicle traveling in a second lane is determined based on the position of the first vehicle at a first moment. The positions of the second vehicle at multiple moments are predicted based on the position of the second vehicle at the first moment. Based on the center line of the second lane and the positions of the second vehicle at these multiple moments, the potential lane-changing behavior of the second vehicle is predicted. If a potential lane-changing behavior of the second vehicle is determined, the first vehicle is controlled to steer away from the second vehicle. This application can predict in advance whether the second vehicle may change lanes, thereby controlling the first vehicle to steer and avoid obstacles in advance, thus improving the effectiveness of obstacle avoidance.

This invention discloses a method, apparatus, device, and vehicle for handling battery temperature sampling disconnection faults. When a battery temperature sampling disconnection fault is detected in the power battery system, the number of disconnected temperature sampling lines is obtained. When the number of disconnected lines is less than or equal to a preset number, the current highest temperature of a single cell in the power battery is detected. When the difference between a first temperature fault threshold and the current highest temperature of a single cell is greater than or equal to a first preset temperature, the current lowest temperature of a single cell in the power battery is detected. When the difference between the current lowest temperature of a single cell and a second temperature fault threshold is greater than or equal to a second preset temperature, it is determined whether the current highest and lowest temperatures of a single cell are within a preset temperature range. When it is determined that both the current highest and lowest temperatures of a single cell are outside the preset temperature range, the charging and discharging current is limited to a first preset current value. This method can ensure the normal and safe operation of the vehicle and balance system safety and operational efficiency.

The application discloses a kind of full redundancy electric power steering system internal communication fail-safe degradation method, the full redundancy electric power steering system includes main road system, auxiliary road system and 6-phase motor, and 3-phase of 6-phase motor is controlled by main road system and auxiliary road system respectively;The main road system and auxiliary road system carry out real-time information interaction by six communication channels, and communication channel includes UART serial communication channel, private CAN communication channel and PWM communication channel, and UART serial communication channel, private CAN communication channel and PWM communication channel are divided into TX channel and RX channel respectively, TX channel is transmission channel, and RX channel is receiving channel;The full redundancy electric power steering system changes the working mode of full redundancy electric power steering system according to the fault of six different communication channels;The level of the working mode includes mode 0, mode 1, mode 2, mode 3, mode 4 and mode 5 in turn from high to low.

This application discloses a control system and control method for a trailer towing device. During the coupling process, the system first confirms that the central mechanism is open OR activates the drive mechanism to open the towing seat, and then the coupling operation is carried out. When the coupling is completed, the central mechanism automatically resets, and the control system automatically controls the reverse drive to lock and reinforce the central mechanism, preventing abnormal opening of the central mechanism due to vibration during vehicle transportation. This also eliminates the need for the locking mechanism of conventional manual towing devices. During the uncoupling operation, because the locking structure is eliminated, the control system can be directly activated, and the drive mechanism can be used to open the towing device's central mechanism in a forward direction, allowing the tractor to be driven away for uncoupling. This eliminates the need for laborious manual operation, avoiding situations where the operation is difficult due to high operating height and narrow space, requiring the operator to enter the space between the trailer and tractor sideways. It also eliminates the need to manually open the safety lock.