166results about How to "Reduce driving fatigue" patented technology

The invention belongs to the field of vehicle intelligence design, and in particular relates to a driving assistance system based on artificial intelligence. The system comprises a driving environment sensing unit and a wireless communication unit, wherein the driving environment sensing unit is used for identifying the ambient environment of a vehicle; the wire communication unit is used for communicating between the vehicle and surrounding vehicles and a server terminal; information acquired by the driving environment sensing unit and the wireless communication unit is output to an artificial intelligence unit for processing; and a driving assistance unit realizes the functions of vehicle speed adjustment, vehicle distance adjustment, lane change, overtaking and parking according to processed output control signals. The system can realize the functions of self-adaptive cruise control and automatic parking to relieve the driving fatigue of drivers, and can monitor the ambient environment of the vehicle to actively evade dangers so as to improve the driving safety.

The invention discloses an automobile driving assistance system and a control method. The automobile driving assistance system comprises an information acquisition module and an information fusion processor, wherein the information acquisition module comprises a front camera, a front radar and an ultrasonic radar; the information fusion processor is electrically connected with the information acquisition module; and the information fusion processor reads the information of the information acquisition module, performs information fusion processing and outputs a vehicle brake control signal, a speed and distance control signal and a driving track control signal. The front camera comprises an image recognition algorithm module, a light source recognition algorithm module and a lane line recognition algorithm module. The front radar comprises a front obstacle detection module and a front medium-long vehicle distance detection module. The ultrasonic radar comprises a surrounding vehicle distance detection module and a front near vehicle distance detection module.

The invention discloses a fuzzy control based automotive intelligent cruise assisted driving system control method. The method includes the steps: firstly, acquiring speed VF of a front key target vehicle, relative distance Sr and real-time speed Vh of a cruiser; judging whether the front vehicle exists or not, and entering an intelligent following mode if yes; otherwise, entering a constant-speed cruise mode; for the intelligent following mode, taking relative distance deviation RD and relative speed deviation RV as input parameters, and taking an output linguistic variable as pedal increment u of an accelerator pedal or brake pedal at one movement; according to the fuzzy rule, determining a fuzzy value of an output variable u; adopting a centroid method to perform defuzzification computation to obtain an accurate controlled variable so as to control throttle percentage or brake pedal travel. By the control method, automatic regulation and trigger control of the throttle percentage and brake pedal travel can be realized at the same time, an integrated control function integrating ACC(active cruise control) and run-stop control can be realized, running safety of an automobile is improved, and driving fatigue of a driver is alleviated.

The invention provides an auto cruise control system, which belongs to the technical field of cruise control and solves the problem that the traditional auto cruise control function is required to be started manually. The auto cruise control system disclosed by the invention comprises a central processing unit, an interrupting device and a feedback device, wherein the feedback device can reflect the speed state of an automobile; the central processing unit is connected with the feedback device and an engine throttle and can control the opening size of the throttle; the feedback device feeds the feedback information indicating the speed of the automobile back to the central processing unit; after detecting that the speed of the automobile is in a stable state according to the feedback information, the central processing unit enters a cruise control state and controls the throttle to keep the opening size; and the automobile can be interrupted by the interrupting device after entering the cruise control state. The auto cruise control system provided by the invention has the advantages of automatically entering a cruise control state according to the stability of the speed of the automobile, thereby simplifying the operation of a driver, reduce driving fatigue, reducing unnecessary speed change, and saving fuel.

The invention discloses an intelligent vehicle assistant system.The intelligent vehicle assistant system comprises an intelligent assistant controller, an intelligent navigation system, an intelligent speed control system, an intelligent service system, an intelligent rearview system and an intelligent driving model system, wherein the intelligent navigation system, the intelligent speed control system, the intelligent service system, the intelligent rearview system and the intelligent driving model system are connected with the intelligent assistant controller; the intelligent navigation system comprises an input device, a positioning device, a processor and a vehicle manipulating controller; the intelligent speed control system comprises a vehicle speed information transmission system and an engine control system; the intelligent driving model system comprises a road environment detection module, a driver operation detection module, a whole vehicle system module and a driver model module.According to the intelligent vehicle assistant system, road environment detection, driver operation detection, whole vehicle system detection and driving habit judgment can be carried out through the intelligent driving model system; navigation is completed by the intelligent navigation system; speed control is performed by the intelligent speed control system; driving fatigue is relieved, driving safety is ensured, and intelligent driving is realized.

The invention discloses an automatic vehicle-following device and a method and belongs to the technical field of a vehicle. The device comprises an acquiring device and a control module, wherein the acquiring device is used for acquiring driving states of surrounding vehicles and confirming operations executed by the surrounding vehicles according to the driving states; the surrounding vehicles are arranged as the vehicles in a preset scope surrounding a first vehicle; the running state of each vehicle comprises one or more of driving speed, gear, brake use condition, engine running condition, steering of a steering wheel, distance away from the first vehicle, and a driving track; the operations of each vehicle comprise one or more of shifting D-gear, shifting P-gear, braking, starting an engine and stopping the engine; the control module is used for controlling the first vehicle to execute a first operation after the automatic vehicle-following is started and the first operation is executed by the surrounding vehicles which are greater than or equal to the preset proportion in all the surrounding vehicles; the first operation is one of the operations. According to the invention, the vehicle-following reliability under a traffic jam condition is ensured and the driving fatigue is effectively relieved.

The invention provides an automobile starting / stopping system with a traffic light identifying function and a control method thereof, belonging to the technical field of automobiles. Through the system and method thereof, the problem that the vehicle does not have an automatic starting / stopping function in the traffic light condition in the prior art is solved. The system comprises a traffic light detection device, an electronic control unit, a vehicle electronic stability control system and an electronic accelerator pedal, wherein the traffic light detection device is connected with a signal input end of the electronic control unit; and the electronic stability control system (ESC) and the electronic accelerator pedal are connected with a signal output end of the electronic control unit respectively. The control method comprises: A, a step of image signal acquisition; B, a step of image signal pretreatment; C, a step of image analysis treatment; and D, a step of starting / stopping control. The system reduces the driving fatigue of the driver and realizes easier and safer driving.

The invention discloses a pedestrian early warning system based on a vehicle-mounted infrared image and a working method thereof. The system comprises an image acquiring unit, an image processing unit, a decision output unit, a driver early warning unit and a driver alarming unit, wherein the image acquiring unit, the image processing unit and the decision output unit are sequentially connected in parallel; the image acquiring unit is connected with a vehicle-mounted infrared camera to acquire infrared image information and transmits the information to the image processing unit to be processed; and the decision output unit transmits a signal to the driver early warning unit or the driver alarming unit according to the current vehicle speed information of a vehicle. On the pedestrian cutting technology, k-means Cluster Analysis algorithm is adopted to acquire a relatively accurate pedestrian interest area, so that the next step of identifying pedestrians is simple, and a part of non-pedestrian interference is avoided. A pedestrian identifying method of a serial combination way is adopted in a pedestrian identifying process, so that the accuracy of pedestrian detection is improved.

The invention provides a multimode drive control method for a pure electric vehicle. The method comprises the steps that an overall vehicle controller judges the state of a driving mode of the vehicle, a torque parameter value is obtained by searching a function table through an input value in accordance with that different driving modes correspond to different function tables and input values of the function tables are current vehicle speed and openness of an accelerator pedal, and finally, a torque output value is determined by a product of the obtained torque parameter value and a peak torque value, which can be reached at a current revolving speed, of a motor. According to the method, through introducing a camber control strategy formulated through vehicle speed signals in various modes, the disadvantages resulting from the deficiency of torque of a rear segment of the driving motor are effectively avoided, the working interval of the driving motor is optimized, and the economical efficiency of the whole vehicle is increased.

The invention relates to an active electric power-assisting circulation ball type steering system, comprising a steering column tube assembly, a screw rod moving device, a circulation ball type steering device, an electric power-assisting device and an automatic control module. A steering column tube is connected with the upper part of a screw rod of the circulation ball type steering device through a sliding spline, and the electric power-assisting device is connected with the lower part of the screw rod through a sliding spline; the screw rod moving device is sleeved on the screw rod; the screw rod has two motion freedoms; a freedom of rotating around the axis is controlled by a steering wheel; and the other freedom of moving along the axis is controlled by a screw rod moving control motor; a steering nut is moved by overlapping the effects of rotation and axial movement of the screw rod, so that a transmission ratio of the steering system is changed in real time, and the active steering is intervened. The steering system not only can meet the requirements on lightness and high sensitivity at a low-speed steering process and on stable operation at a high-speed steering process, but also has the characteristics of security, compact structure, low cost and the like. The active electric power-assisting circulation ball type steering system is applicable to a medium / light passenger bus and a lorry.

The invention discloses an exclusive customized man-machine interaction interface design system oriented to automobile sharing service. The exclusive customized man-machine interaction interface design system aims at solving the problems that in the automobile sharing service, when facing man-machine interaction interfaces of strange vehicles, drivers are poor in experience and perception, have difficulty in conducting operation and are poor in adaptive capacity. The exclusive customized man-machine interaction interface design system comprises a cloud server, an instrument arrangement area interface display device, an instrument arrangement area interface display device control module, a central control arrangement area interface display device and a central control arrangement area interface display device control module. The central control arrangement area interface display device control module comprises a central control communication module, an operation module, a storage module, a processing module and a central control display module. The instrument arrangement area interface display device control module comprises an instrument communication module and an instrument display module. The invention further provides a method for designing the man-machine interfaces through the exclusive customized man-machine interaction interface design system oriented to the automobile sharing service.

The steering device is constructed by supporting a center portion of a rectangle-plate-shaped operation plate at one end of a supporting shaft projected from the front face of a dashboard so as to freely swing in right and left directions. A steering apparatus for a vehicle having the steering device detects the swing direction and the swing angle of the operation plate with a steering angle sensor provided at a support portion and moves a steering mechanism in the detected direction in accordance with the detected angle so as to steer the vehicle. With this structure, a load in steering can be decreased and tiredness in driving can be reduced. Furthermore, such a steering apparatus can realize a steering device which physically handicapped drivers can operate easily.

The embodiment of the invention discloses a navigation route updating method and device. The navigation route updating method comprises the following steps: calculating multiple drive routes of a vehicle from the current position to a preset position in real time; acquiring road condition information on each drive route; selecting a first route from multiple drive routes according to the road condition information; and updating a navigation route according to the first route. The navigation route updating device accordingly comprises a route calculating module, a road condition acquisition module, a route selecting module and an updating module. By adopting the navigation route updating method and device which are provided by the invention, the drive route is updated in real time, and thedrive route is switched timely when the drive route is jammed or other routes are smooth, so that the driving efficiency is improved, the driving time is shortened, the driving fatigue is reduced, andthe driving security is improved.

The invention provides an intelligent vehicle extension game lane keeping adaptive cruise control system and control method in a congestion environment. The method comprises establishing a lane keeping adaptive cruise control system that comprises a camera, a millimeter-wave radar, a lane keeping controller, and an adaptive cruise controller; enabling the camera to detect a lane line and a front vehicle picture and acquire the position of a front vehicle and the quality of the lane line; when the lane line quality is poor, detecting a feasible region width and a vehicle width in combination with the the millimeter wave radar, and solving the feasible region transverse distance deviation; establishing a vehicle dynamics model and a lane keeping preview deviation model; designing a lane keeping controller which comprises outer ring extension control and inner ring game control to obtain a steering wheel angle and four-wheel torque. The adaptive cruise controller is designed, so that theintelligent vehicle can better perform lane keeping and adaptive cruise control in a congestion environment, and the running stability of the vehicle is improved.

The invention belongs to the technical field of automobiles and particularly provides a suspended parallel hybrid power-driven system with double clutches and double motors. The system comprises an engine, two clutches, two electric-control actuating mechanisms for the clutches, motors, a gearbox, a deceleration differential, two driving half-axles, two wheels, an energy storage unit, a motor control unit and a starting motor, wherein the engine is connected with the rotors of the motors via a first clutch and a transmission shaft; the rotors of the motors are connected with the gearbox, the deceleration differential, the driving half-axles and the wheels via a second clutch and are supported on a shell; and the two clutches are respectively under the automatic control of the two electric-control actuating mechanisms for the clutches. The invention can reduce the gaps between the stators and rotors of the motors and eliminate the adverse effects of vibration of the transmission system on engines and motors, has the operation modes of pure-electricity drive, smart charging and parallel full-hybrid power and has the advantages of high efficiency, easy drive, low cost and high reliability.

The exhaust valve braking equipment includes one exhaust valve, one rocking arm structure and one power set mounted on the cylinder head, and one cylinder head oil passage. The rocking arm structure provided with one oil passage communicated to the main engine oil passage and one oil sealing block includes one rocking arm seat with oil channel and oil hole, one rocking arm shaft with axial oil hole and radial oil hole communicated each other, one rocking arm with oil holes, and one piston couple mounted to the end of the rocking arm and provided with oil holes. The exhaust valve braking equipment keeps the exhaust valve opened to reduce the work produced by the gas in the combustor to the piston, reduce the rotation speed of the engine and raise the braking efficiency.

The invention discloses a vehicle control method and device based on brain-computer interaction, and the method comprises the steps: S1, sensing the external environment information of a controlled vehicle and the state information of the controlled vehicle in real time in a driving process of the controlled vehicle; S2, judging all driving scenes matched with the current environment according tothe information sensed in real time, and outputting the driving scenes as selectable driving decisions to be provided for a driver to select; S3, collecting a brain wave signal of a driver, and extracting a decision selection instruction of the driver for a driving decision; and S4, when a decision selection instruction is received, calling a corresponding target driving behavior model from a plurality of driving behavior models obtained by pre-training according to the decision selection instruction, and controlling the vehicle driving behavior by using the target driving behavior model. Themethod has the advantages of being simple in implementation method, high in intelligent degree, good in control stability and robustness, safe, reliable and the like.

The invention relates to the field of a cruise control system of automobiles and provides a control switch device of a cruise control system of automobiles, which is similar to the existing similar device, and is characterized in that the starting, releasing and setting of the functions of the cruise control can be realized through the operation on a clipper or a knob, the set speed of an automobile can be discretionarily accelerated, decelerated for flexible control, and has no limit for low speed and roads; when a sole leaves an accelerator pedal, the functions of the cruise control are started and the cruising speed can be reinstated; when the sole treads the accelerator pedal, the functions of the cruise control are released, and the utilization ratio of the cruise control system can be effectively improved; the control switch device also comprises an A / D converter, the clipper is a linear displacement sensor, the knob is an angular displacement sensor which is embedded into and arranged on a steering wheel panel or near a steering wheel, and can also be embedded into and arranged on a shift knob; and the output end of the linear displacement sensor or the angular displacement sensor is connected with the signal input end of the A / D converter of an electronic control unit (ECU) of the cruise control system.

The invention provides a throttle control method and device. The method comprises the steps of acquiring a plurality of target signals in real time, wherein the plurality of target signals include a current throttle opening degree signal, and a plurality of signals representing the current vehicle state; determining whether to enter an automatic throttle control mode through the plurality of target signals and the conditions set for each signal; if so, entering the automatic throttle control mode; and keeping the opening degree of a throttle at the throttle opening degree corresponding to thecurrent throttle opening degree signal. According to the method and the device, the automatic throttle control mode is triggered when the plurality of target signals meet the set conditions, and the current throttle opening degree can be locked, namely, the engine throttle is kept at the current opening degree, thus a driver is prevented from stepping on a throttle pedal all the time, and as a result, the fatigue of the driver in driving is reduced.

The invention provides a system for preventing fatigue driving of motor vehicles. A camera is installed at a pillow part of a driver seat, and is started to shoot a sitting posture image of a driver;a first pressure sensor and a second pressure sensor are arranged in a preset area of the bottom of the driver seat, and pressure values after the driver is seated are collected; an ECU receives the sitting posture image and pressure values collected by the first pressure sensor and the second pressure sensor, it is judged that a sitting posture of a driver fails when the sitting posture image ismismatched with a preset correct sitting-posture image or a pressure difference formed between the first pressure sensor and the second pressure sensor is larger than or equal to a preset threshold value, then an alarm command is issued to a sitting posture reminding module, and the sitting posture reminding module is driven to extract alarming information for voice broadcasting to remind the driver to adjust the sitting posture. According to the system and method for preventing fatigue driving of the motor vehicles, a fatigue driving state of the driver is identified combined with the image identification technology and the pressure sensing technology, the driver can be reminded in time to prevent fatigue driving, fatigue of the driver can be further relieved, and the driving safety is improved.

The invention discloses a cleaning trolley with constant-speed cruising function and an automatic driving constant-speed cruising method. The cleaning trolley comprises an automatic cleaning device and an automatic driving device, a garbage can and a water storage tank are arranged on a body, a roller type broom is connected with a power device, an exhaust opening is formed in the bottom of the garbage can, a fan is arranged at the top of the garbage can, a vertical downward spraying nozzle is arranged at the bottom of the water storage tank and provided with a switch valve, and a central control unit is connected with a power device, the fan and the switch valve one by one and connected with an accelerator pedal position sensor, a brake pedal position sensor, an angle sensor, a clutch position sensor, a transmission sensor, a radar detector, a swing sensor and speed sensor one by one. The automatic driving constant-speed cruising method is implemented by the aid of the cleaning trolley, driving fatigue of a driver of the cleaning trolley can be relieved, and working positivity, trolley using normalization and trolley using efficiency of the driver of the cleaning trolley are improved.

The invention provides a vehicle axle steering system, a control method thereof, and an engineering vehicle. The vehicle axle steering system comprises a front axle lever system, a rear axle lever system and a steering unlocking mechanism, wherein the front axle lever system and the rear axle lever system are fixedly connected onto a frame body; and the steering unlocking mechanism is connected between the front axle lever system and the rear axle lever system, and is provided with a first operating position for enabling the front axle lever system and the rear axle lever system to be locked to form linkage, and a second operating position for enabling the front axle lever system and the rear axle lever system to unlock. The vehicle axle steering system also comprises an alignment oil cylinder, wherein a first end of the alignment oil cylinder is hinged on the frame body; a second end of the alignment oil cylinder is connected with the rear axle lever system; and the alignment oil cylinder is provided with a first operating state for providing a locking force to the rear axle lever system, a second operating state for providing aligning force to the steering mechanism, and an idle state dropping out of steering control. According to the vehicle axle steering system, the problems that in the prior art, the lever system has a single steering mode and poor operation stability can be solved.

The invention provides a braking energy recovery adjustment control method. A whole vehicle controller collects a slope signal of a current road through a slope sensor, when the slope shows downhill and the duration time for which the slope is larger than the first set value is larger than the second set value, it is judged that a vehicle is in the long-distance downhill work condition, braking energy recovery adjustment control is started, and the whole vehicle controller decides whether an instruction for increasing the braking torque is sent to a motor controller or not through the comparison between the current vehicle speed and the target vehicle speed. The recycling rate is obviously increased especially under the rough mountain long-distance downhill driving working condition, and energy losses produced by vehicle potential energy descending are effectively recycled.

The invention discloses a vehicle automatic forced speed limit cruise system applicable to a speed limit section and is mainly oriented to roads of speed limit parks such as campuses and communities.The system comprises speed limit signal transmitters, an onboard signal receiver, a self-adaptive cruise controller, an onboard CAN bus and an actuator. The speed limit signal transmitters are arranged at the beginning end and the terminal end of the speed limit section and used for wirelessly transmitting a speed limit signal to a vehicle; after the onboard signal receiver receives the signal, the signal is transferred to the self-adaptive cruise controller of the vehicle through the onboard CAN bus, the speed of the vehicle is controlled to gently decrease, and the vehicle is forced to passat a speed lower than the speed limit value; and when the receiver receives a speed limit release signal, it indicates that the vehicle leaves the speed limit section, and the forced speed limit driving state is exited. By applying the vehicle automatic forced speed limit cruise system applicable to the speed limit section, the vehicle-road wireless communication is established, vehicles are forced to run at limited speeds through self-adaptive cruise control both in the manual and automatic driving modes, speed bumps are replaced, damage to vehicle components are avoided, the driving noise inparks is reduced, and safety and riding comfort are enhanced.

The invention provides an automobile torque control method and device, control equipment and an automobile. The control method comprises the steps that when a request for entering a low-speed workingcondition mode is received, whether the automobile currently meets the condition for entering the low-speed working condition mode is judged; when the condition of entering the low-speed working condition mode is met, the vehicle is controlled to enter the low-speed working condition mode, and the accelerator pedal opening degree and the vehicle speed are monitored; if the accelerator pedal opening degree is 0 and the current vehicle speed is larger than zero and smaller than or equal to a first preset speed value, the vehicle is controlled to enter PI control with the target rotating speed being 0 r / min, the target torque of a motor is determined according to the PI control, a driving motor is controlled to work according to the target torque, and the accelerator pedal opening degree continues to be monitored; and when the accelerator pedal opening degree is larger than the first preset opening degree value or the vehicle speed is larger than the second preset speed value, the vehicleis controlled to quit PI control. Under the low-speed working condition, the vehicle can be accelerated and decelerated to follow the front vehicle only by stepping on the accelerator pedal, and driving fatigue is reduced.

The invention discloses an automobile low-speed following driving assistance system and a decision making method of the automobile low-speed following driving assistance system. The system comprises a distance sensor, a signal processing unit, a control unit and an automobile interface unit, wherein the distance sensor is used for detecting the spacing distance between a current automobile and a preceding automobile; the output end of the distance senor is connected with the signal processing unit; the output end of the signal processing unit is connected with the control unit; the output end of the control unit is connected with an automobile driving unit through the automobile interface unit; a speed sensor used for collecting automobile running speed information is arranged in the automobile driving unit; and the output end of the speed sensor is connected with the signal processing unit through the automobile interface unit. The system can be used for assisting an automobile driver to operate the automobile to advance or to brake in a traffic jam driving state; the driving fatigue degree of the driver can be reduced; the occurrence of traffic accidents is prevented; the distance with the preceding automobile can be monitored and controlled in real time; the occurrence of traffic accidents such as rear-end collision can be effectively avoided; the traffic efficiency of the automobile can also be improved; and the traffic jam is relieved.

The invention discloses a road unevenness early warning and active obstacle avoidance device based on a steering-by-wire system. The device comprises a monitoring module used for monitoring the road conditions, an electronic control unit module, an alarm module and a module steering execution assembly of the steering-by-wire system. A vehicle-mounted camera feeds unevenness information of a road surface ahead back to the electronic control unit module; the electronic unit module judges whether a driver needs to be reminded of the unevenness information of the road surface ahead or not; if not needed, the unevenness of the road surface ahead continues to be monitored; if needed, an alarm instruction is transmitted to the alarm module through the FlexRay network, and at the same time, the module steering execution assembly of the steering-by-wire system is controlled through the FlexRay network to actively turn and bypass the uneven road surface; if the module steering execution assembly of the steering-by-wire system successfully bypasses the uneven road surface, active steering is ended; and if the module steering execution assembly of the steering-by-wire system fails to bypass the uneven road surface, the electronic control unit module controls torque for reflecting the road feeling on a steering wheel and uncomfortable feeling of the driver is not caused. The device ensures stability, safety and driving comfort in the driving process.

An intelligent bicycle comprises a bicycle frame, a steering device and a control system. The steering device comprises a steering rod, a steering driving module, a steering motor bin body and a shell body. The steering driving module is fixed in the bin body. The bin body is connected with the shell body through a connecting structure. The control system comprises a motor driver, a microcontroller module, a gyroscope module, an accelerometer module, a posture induction module and a power module. After the intelligent bicycle enters an automatic riding state, the posture induction module placed on a rider induces posture information of the rider and sends the posture information to a controller, and the controller conducts left turning, right turning, acceleration, deceleration, parking and other corresponding riding operations according to the posture information of the rider. By means of the intelligent bicycle, when the rider rides the bicycle on a road, other parts of the rider can replace the hands to control steering of the bicycle, riding fatigue can be relieved, and the situation that accidents are caused due to panic resulted from mobile phone calls or text messages and other unexpected factors can be prevented.

The invention discloses a running vehicle monitoring method and system. The running vehicle monitoring system comprises a vehicle monitoring center (1), a vehicle data acquisition device (2) and a display device (4); the vehicle monitoring center (1) is used for sending extension transparent transmission information to the vehicle data acquisition device (2); the vehicle data acquisition device (2) is used for receiving the extension transparent transmission information so as to build a CAN data transmission channel with the vehicle monitoring center (1); the vehicle data acquisition device (2) is further used for acquiring vehicle data according to an appointed sampling time interval and uploading the acquired vehicle data to the vehicle monitoring center (1); the vehicle monitoring center (1) is further used for comparing the vehicle data with reference data to obtain the vehicle running situation analysis result and sending the corresponding prompting information to the vehicle data acquisition device (2) according to the vehicle running situation analysis result; the display device (4) is used for receiving and displaying the prompting information.