165results about How to "Reduce driving fatigue" patented technology

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 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 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 invention belongs to the technical field of mobile phones, and in particular relates to a mobile terminal for preventing fatigue driving and realization method thereof. The realization method comprises the following steps: A, judging a fatigue level of a driver through a set mode; and B, starting the warning if the fatigue level exceeds the set threshold value. Compared with the prior art, the mobile terminal disclosed by the invention has the advantages of being reasonable in design, convenient for use and capable of lowering accident rate.

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 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 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.