3323results about "Automatic initiations" patented technology

The invention discloses a vehicle braking torque adjusting method and system based on multiple input signals. The vehicle braking torque adjusting method and system aim at improving the safety, driving experience and braking efficiency of a vehicle in a complex environment. The system collects the vehicle driving state, the intention of a driver and the road friction condition in real time through a plurality of sensor modules, and accurate data support is provided for brake control. According to the diversified input, the system can intelligently recognize the road surface state and dynamically adjust the braking torque gradient, the braking response is optimized, and the stability of the vehicle in various driving environments is ensured. The sudden change and step phenomena in the braking process are smoothed through a feedforward control algorithm, the driving experience is improved, instability caused by system switching control strategies is avoided, and based on motor back electromotive force spectrum analysis, the system can accurately adjust energy recovery and improve the energy utilization efficiency of the vehicle. And powerful support is provided for improving the braking performance, the safety and the automatic driving technology of modern vehicles.

One variation of a system includes a modular kit. The modular kit includes: a driven axle configured to install on a bogie chassis supporting a trailer chassis of a trailer; a motor coupled to the driven axle; a battery assembly; a set of electrical cables; and a cable carrier. The battery assembly includes a set of retention features configured to transiently engage a set of engagement features on the trailer chassis to couple the battery assembly to the trailer chassis and is configured to: supply electrical energy to the motor to drive the driven axle; and receive electrical energy from the motor to regeneratively brake the driven axle. The set of electrical cables are configured to electrically couple the motor and the battery assembly. The cable carrier is configured to: locate between the bogie chassis and the battery assembly; and support the set of electrical cables over a range of longitudinal positions.

The invention discloses a collision early warning method and device based on a fusion sensor and a medium, and relates to the technical field of data processing.The method comprises the steps that radar point cloud information in front of a vehicle is collected through a millimeter-wave radar, and image information in front of the vehicle is collected through a camera device; the radar point cloud information in front of the vehicle and the image information in front of the vehicle are fused through a three-dimensional environment analysis model to obtain a three-dimensional environment in front of the vehicle, and the three-dimensional environment in front of the vehicle comprises obstacle distribution coordinates; traversing the obstacle distribution coordinates to perform collision risk assessment to obtain a collision risk level; when the collision risk level is larger than or equal to a first risk level threshold value, emergency braking is executed; and when the collision risk level is greater than a second risk level threshold, generating a collision early warning signal for early warning, thereby achieving the technical effects of initially identifying a target contour through the image, executing analysis modeling of part of point cloud data in a targeted manner through the radar point cloud, reducing the calculation amount and further improving the early warning timeliness.

An all-terrain vehicle may include a frame and a plurality of ground-engaging members supporting the frame. The all-terrain vehicle may further include a powertrain assembly supported by the frame and shiftable transmission supported by the frame and operably coupled to the powertrain assembly. The all-terrain vehicle may also include a display, a back-up camera, and a controller supported by the frame. The controller may be configured to receive a signal from the shiftable transmission corresponding to the shiftable transmission being in a gear of the plurality of gears other than a reverse gear. Further, the controller may be configured to determine the all-terrain vehicle is moving backwards and send an activation signal to the back-up camera to display images of the back-up camera on the display.

The invention discloses a vehicle driving assistance system and method based on AR glasses. The system comprises an environment sensing module, a driver state monitoring module, a danger early warning and avoiding module, an automatic driving and auxiliary driving module, a driving simulation and training module, an abnormal behavior recognition module, a road information and navigation module and a health and emergency response module. The environment perception module is used for solving the problem of poor sight in extreme weather and road perception in a complex environment; by means of sensors such as the laser radar and the camera, road obstacles, pedestrians and vehicles can be accurately recognized, highlighted marking in the AR visual field is achieved, accidents caused by sight blind areas or distraction are reduced, indexes such as the blinking frequency and the head posture of a driver can be monitored, immediate reminding is conducted when fatigue or distraction is found, and parking and resting are forcibly suggested when necessary; and when the driver does not respond in time, the system can automatically brake or adjust the direction to avoid collision.

The invention provides a vehicle driving control method and device for a backlight scene, equipment and a medium. The method comprises the steps that multi-source information of a target vehicle is acquired in real time; performing fusion calculation on the multi-source information to obtain a current backlight risk index of the target vehicle; determining a driving assistance strategy or an automatic emergency braking strategy based on the backlight risk index; and controlling the target vehicle according to the driving assistance strategy or the automatic emergency braking strategy. According to the vehicle driving control scheme for the backlight scene, the backlight risk index is generated by fusing the multi-source information, the backlight scene is accurately judged, the corresponding driving assistance or automatic emergency braking strategy is formulated, the driving safety and reliability of the vehicle in the complex backlight environment are improved, and the driving safety of the vehicle in the complex backlight environment is improved. The problems that in the prior art, due to dependence on a single sensor in a backlight scene, the target recognition precision is low, a dynamic adaptation mechanism is lacked, and a braking strategy is difficult to pre-judge and adjust in advance are solved.

The invention relates to an automatic emergency braking control method and device, computer equipment and a vehicle. The method comprises the following steps: acquiring own vehicle state information, and determining whether an own vehicle meets a preset effective condition or not according to the own vehicle state information; under the condition that the own vehicle state information meets a preset effective condition, target vehicle state information is obtained, and the longitudinal collision time between the own vehicle and the target vehicle is calculated according to the target vehicle state information and the own vehicle state information; under the condition that the longitudinal collision time meets a preset collision condition, determining that the target vehicle is a short-distance early warning target, and giving an alarm; and detecting the definition of the current lane line, and controlling the vehicle to brake and decelerate according to the current road curvature under the condition that the current lane line is not clear and the vehicle is in a stable straight moving state. The method can adapt to vehicle requirements, reduces the false triggering probability, avoids vehicle instability, and improves the vehicle driving safety and reliability.

A vehicle control device of an embodiment includes a recognizer configured to recognize a surrounding situation of a host vehicle, a driving state detector configured to detect a driving state of an occupant of the host vehicle, and a braking controller configured to execute deceleration control based on a target deceleration of the host vehicle when determination is made that an obstacle is present in front of the host vehicle, based on a detection result of the driving state detector, in which the braking controller stops the deceleration control when an accelerator operation of a prescribed value or more of the occupant is detected by the driving state detector, and changes the prescribed value based on an operation speed of the accelerator operation.

A control system (202) can directly or indirectly measure force applied between a trailer (112) and a prime mover vehicle (102) coupled to the trailer. Based on the measured force, the control system can determine an operational state of one or more features of the trailer. For example, static resistance, rolling resistance, and / or acceleration rate of the trailer can be measured while applying a specific braking actuation level to the service air brakes of the trailer. Based at least in part on the measured static resistance, rolling resistance, and / or acceleration rate, an operational model (206) for actuation of the service air brakes can be applied. In some examples, the control system can be part of the prime mover vehicle, for example, an autonomous vehicle.

A system is operable for controlling a force applied on a trailer being towed by a vehicle is described to a desired force Fd. The trailer has brakes and an optional motor for providing a propelling force to the trailer. A force sensor senses fore-aft forces between the vehicle and trailer at all times while the trailer is being towed. A controller receives signals from the force sensor and is operatively connected to the trailer brakes and the motor. The system controls the force between a towing vehicle and a trailer to the desired force Fd, by any one of: (a) operating the brakes to apply a braking force to the trailer; (b) activating the motor to apply a propelling force to the trailer; and (c) operating the brakes and activating the motor to apply both a braking and a propelling force to the trailer.

The embodiments presented herein relate to a system and method for integrating electronic parking brake and service brakes to improve performance of spring brake requests at road speed. In one embodiment, a vehicle is provided comprising: a park brake; a service brake, a controller, and a valve. The controller is configured to: receive a request to apply the park brake while the vehicle is moving above a threshold speed; and in response to receiving the request, simultaneously attempt to apply both the parking brake and the service brake. The valve is configured to prevent simultaneous application of both the park brake and the service brake and allow only the service brake to be applied in response to the valve receiving sufficient pneumatic output to apply the service brake. Other embodiments are provided.

Provided are a method and system for auxiliary emergency braking after a braking failure, and an electronic device, a computer-readable storage medium, a computer program product and a computer program. The method comprises: obtaining a braking system failure factor parameter numerical value on the basis of a braking system health state observer or a fault diagnosis module of a current vehicle; constructing a braking risk decision function on the basis of a braking system failure factor and related data of the current vehicle to calculate a current braking risk value, and obtaining a desired lateral displacement of the current vehicle on the basis of the current braking risk value and steering system data; constructing an integral heuristic barrier Lyapunov function on the basis of the desired lateral displacement of the vehicle and vehicle state information after decision making, and obtaining a desired vehicle traveling yaw angle on the basis of a calculation result of the function; and converting the desired vehicle traveling yaw angle into an input front wheel steering angle value of the current vehicle, and converting the input front wheel steering angle value of the current vehicle into steering-assist electric motor output data, so that a steering system intervenes in and controls safe braking after a braking process fails.

A system including a computer having a processor and a memory. The memory includes instructions executable by the processor to, upon actuating movement of a steering element of a vehicle, measure a torque applied to the steering element in a direction opposite the actuated movement. In response to a determination that the torque is less than a predetermined threshold, the processor actuates a component of the vehicle.

An enhanced lifeform transmission system to locate a lifeform (e.g., human, animal, etc.) wanting to be identified as a lifeform for collision avoidance. The lifeform transceiver is worn on a limb or neck of the lifeform. The collision avoidance system is housed inside the vehicle and receives communications from the lifeform transceiver. The lifeform is automatically detected and the lifeform transmitter is automatically turned on and off when a lifeform enters and exits a vehicle. The lifeform transceiver also tracks and protects the lifeform in a manufacturing facility or at an outdoor location.

The invention relates to a vehicle braking system, a vehicle chassis system, a vehicle and a vehicle braking method.The vehicle braking system comprises a steering device used for achieving steering of wheels; the control device is used for controlling the steering device so that the steering device at least has a braking steering mode and a parking steering mode; wherein when the steering device is in the brake steering mode, the steering angle of at least one wheel exceeds the target steering angle of the wheel; when the steering device is in the parking steering mode, the steering angle of at least one wheel is a preset parking steering angle. The vehicle braking system, the vehicle chassis system, the vehicle and the vehicle braking method have the beneficial effects that the vehicle braking system, the vehicle chassis system, the vehicle and the vehicle braking method which can adapt to various states of the vehicle to obtain adaptive braking force are provided.

An electrified vehicle includes a human-machine interface to enable a towed vehicle mode to enable electric pumps to lubricate and / or cool vehicle components and to disable driver assistance features while the electrified vehicle is being towed by another vehicle. The electrified vehicle includes a drivetrain having an electric machine configured to provide propulsive torque to vehicle wheels, a high-voltage traction battery selectively connected to the electric machine, a battery powered fluid pump configured to pump fluid to the drivetrain, and a controller programmed to, after receiving a signal enabling towed vehicle operation of the electrified vehicle, control operation of the battery powered fluid pump while the electrified vehicle is being towed. The controller may disable one or more driver assistance features and alerts such as automatic emergency braking, automatic shifting of the drivetrain, automatic parking brake operation, automatic headlights, automatic steering, cruise control, parking assistance, and external object distance detection.

A method and system are provided for characterizing a vehicle motion of an autonomous mobile robot in response to a triggering event. The method and system involve an autonomous mobile robot and a vehicle processor operable to navigate the autonomous mobile robot. The system further includes a motion characterization system coupled to the autonomous mobile robot, the motion characterization system comprising an odometry system operable to collect vehicle motion data associated with the vehicle motion; a triggering component; a storage component for storing an event start time, an event end time and the vehicle motion data between the event start time and the event end time; and a motion characterization processor operable to: receive an initialization input to initiate the triggering event; generate a trigger signal to cause the triggering component to cause the triggering event; and identify the event start time and an event end time.

The invention discloses a rack rail trapped rail vehicle and a driving part and a driving assembly thereof. The rack rail trapped rail vehicle comprises a driving disc support; the driving disc assembly is installed on the driving disc support and used for being in meshing transmission with a rack on the rack rail; the driving part is connected with the driving disc assembly and used for driving the pin shaft wheel on the driving disc assembly to rotate; the wheel swing frame assemblies are arranged on the two sides of the lower portion of the driving disc support, and rolling wheels used for being matched with the special-shaped rails on the two sides of the rack rail are arranged on the wheel swing frame assemblies; the first braking device is arranged on the driving disc support and used for clamping the driving disc assembly to achieve working braking of the locomotive; the second braking device is arranged on the wheel swing frame assembly and used for clamping the special-shaped rail to achieve emergency braking of the locomotive; and the speed limiting device is mounted on the driving disc bracket, triggers the first braking device to act when the speed of the locomotive reaches a first preset speed threshold value, and triggers the second braking device to act when the speed detected by the speed limiting device is still greater than zero after the first braking device brakes.

The invention relates to an electric drive semitrailer grading AEB control decision-making method considering road surface factors, and the method comprises the following steps: S1, enabling a vehicle to obtain front vehicle information and road surface information through a sensor, a high-precision map and other ways, calculating a correction adhesion coefficient through combining with the state of the vehicle, and determining the maximum gradient limit; s2, outputting a maximum braking deceleration correction factor through fuzzy control by taking the correction adhesion coefficient and the gradient as input; s3, according to the advantages and disadvantages of the road surface working conditions and the maximum braking deceleration correction factor, the maximum braking deceleration is calculated according to the working conditions; s4, calculating a safe braking distance and collision time according to the current state of the vehicle and the speed and distance of the front vehicle; and S5, the collision time is used for early warning decision making, the safety braking distance is used for emergency braking decision making, the corrected maximum braking deceleration serves as a full-force braking target value, and graded AEB control is achieved. According to the method, road surface factors are fully considered, vehicle safety can be guaranteed under different attachment conditions and slope road surfaces, and the braking stability is remarkably improved.

A vehicle operation system, including: a steering member to be gripped by a hand of a driver of a vehicle for a steering operation; an operation member for at least one of a brake operation and an accelerator operation, the operation member being provided on the steering member so as to be operable by the driver's hand; a detection device configured to detect an operation amount of the operation member; and a computer configured to receive a detection result of the detection device; wherein the computer is configured to calculate a control characteristic that represents a relationship between the operation amount of the operation member and target deceleration or target acceleration, which is a control target value, based on the detection result of the detection device acquired in a situation in which a predetermined condition including a condition that a stop state of the vehicle is maintained is satisfied.

A vehicle control apparatus comprises: a first control system that executes a first operation for reducing a possibility of collision between a host vehicle and an obstacle; and a second control system that execute a second control for automatically stopping the host vehicle when a driver of the host vehicle has fallen into an anomaly state where the driver cannot drive the host vehicle properly is obtained. In the apparatus, a second control in-execution period first operation start condition necessary to be satisfied in order for the first system to start executing the first operation while the second control system is not being executed the second control and a second control execution period first operation start condition necessary to be satisfied in order for the first system to start executing the first operation while the second control system is being executing the second control are different from each other.

The invention relates to the technical field of rail transit automatic driving, and particularly discloses a rail transit train automatic driving control method, which is characterized in that a vehicle-mounted control center cooperates with a signal system, a traction unit and a braking system, and centimeter-level real-time positioning is realized by adopting extended Kalman filtering and fusing satellite positioning, an odometer and trackside beacon data; the parking precision of the platform is controlled based on a graded braking strategy (coasting-common-precise braking) and pulse type terminal point fine adjustment; the method dynamically adapts to line condition changes in combination with feedforward-feedback composite speed control, and establishes a multi-level safety monitoring network (obstacle detection / overspeed protection / vehicle door linkage) to realize full-process closed-loop control, and finally, high-precision, high-safety and high-coordination operation under unmanned driving is achieved.

The invention discloses an in-vehicle hidden driver emergency call method, and relates to the technical field of vehicle-mounted safety, and the method comprises the steps: installing a pressure sensor group, and generating a trigger signal when a combined trigger mode of a hand pressure value and a pedal pressure value is detected; analyzing the daily driving behavior data of the driver, and comparing the trigger signal with a pre-stored normal driving behavior mode; when the trigger signal deviates from the normal driving behavior mode and meets a preset emergency trigger threshold value, acquiring passenger information in the vehicle and vehicle driving data, and packaging the passenger information and the vehicle driving data into an emergency information packet; and transmitting the emergency information packet to a background rescue system, and sending an emergency call instruction with the in-vehicle condition after determining whether there is a dangerous person. According to the invention, the agility and safety of emergency response can be improved, the overall emergency response and decision-making capability can be enhanced, and the response timeliness and safety prevention and control level of the in-vehicle emergency call system can be improved.

A travel assistance method sets a target slip angle, estimates or detects an actual slip angle, sets a target braking / driving force by, when a sign of the vehicle body slip angle rotating in a turning direction of the vehicle is defined as positive and a sign of the vehicle body slip angle rotating in an opposite direction to the turning direction is defined as negative, correcting a required braking / driving force in such a manner as to increase a braking / driving force for a rear wheel or reduce a braking / driving force generated on a front wheel when the actual slip angle is larger than the target slip angle and correcting the required braking / driving force in such a manner as to reduce a braking / driving force for the rear wheel or increase a braking / driving force generated on the front wheel when the actual slip angle is smaller than the target slip angle.

A system for controlling a vehicle combination comprising a tractor unit and at least one trailing unit is disclosed. The system has a target generator to determine a virtual control input for the vehicle combination based on a reference input for the vehicle combination. A power manager determines a power allocation input for the vehicle combination based on the reference input and a power capability of one or more units of the vehicle combination. A combination control allocator determines a control input for the vehicle combination based on the power allocation input and the virtual control input.

The invention provides an emergency braking control method, which is realized by using an emergency braking loop structure, and the emergency braking loop structure comprises a control loop connected with an occupied end and an action loop for connecting emergency braking electromagnetic valves of vehicles in parallel; a positive electrode power supply and a negative electrode power supply are provided for the control loop through the occupied end, and the control loop enables the two ends of an emergency braking loop relay to be powered on by connecting monitoring conditions and train lines in series; the action loop is used for connecting the emergency braking electromagnetic valves of all the vehicles in parallel, and when the relay of the emergency braking loop loses power, the normally open contact is disconnected, the emergency braking electromagnetic valves of all the vehicles lose power, and emergency braking is generated; according to the method, the problems and defects of an emergency braking loop of an existing motor train unit project can be solved, a specific monitoring function is executed through the emergency braking loop independent of a train control system, and the emergency braking loop adopts a control mode of a hardware relay control circuit, so that safe stopping of a motor train under the fault condition is guaranteed.

The invention relates to the technical field of vehicle safety, in particular to a vehicle autonomous emergency braking-oriented road surface attachment sensing method, which comprises the following steps of: acquiring all initial point cloud data in a preset sensing area in front of a vehicle by using a laser radar at the top of the vehicle, and segmenting the initial point cloud data to obtain a road surface point cloud data set in the preset sensing area; acquiring a reflected light intensity value of each piece of road surface point cloud data in a preset sensing area, and taking the road surface point cloud data of which the reflection intensity value is not in a high reflection intensity threshold range but is in a road surface reflection intensity threshold range as target point cloud data; based on the reflection intensity values of all the target point cloud data, generating a grayscale image, inputting the grayscale image into a classification model, outputting a pavement type prediction result, determining a pavement adhesion coefficient, and calculating brake pressure; and if the distance between the current vehicle and the front vehicle is smaller than the safe distance, the vehicle performs autonomous emergency braking based on the braking pressure. The safety and comfort of emergency braking are improved.

The invention relates to the field of vehicle intelligent control, in particular to a brake control method, device and equipment based on driver behaviors and a medium. By detecting the driving emotion data and the operation data of the driver, the state of the driver can be known comprehensively. The extracted key emotional characteristics, such as anxiety or exhaustion perceived from sightedness and intonation change of a driver, are combined with driving operation characteristics and tension control reflected by fine shaking of a steering wheel, a driving scene is determined, an automatic braking decision is made to fit reality, misjudgment is reduced, and driving safety is improved. In order to solve the traditional problems, the mode that braking is triggered by sensing the environment purely through a sensor outside a vehicle is abandoned, and the defect that the sensor loses efficacy or misjudgment is caused by rain, snow, strong light and the like is overcome. Meanwhile, the recognition result is not interfered by noisy and accent in the vehicle, but focuses on the performance of the driver. The automatic braking function is accurately triggered, and driving stability and safety are practically guaranteed.

The invention provides a parking control method, device and system, electronic equipment and a vehicle, and relates to the technical field of mine car control, and the parking control method comprises the steps that vehicle monitoring data of a target vehicle is obtained, and the vehicle monitoring data at least comprises a power supply monitoring signal, an electronic control unit communication state, a sensor monitoring signal and a braking system component feedback signal; analyzing a vehicle running state based on the vehicle monitoring data, wherein the vehicle running state is any one of a vehicle power-off state, a vehicle power-on state and a braking system abnormal state; a parking control mode matched with the vehicle running state is determined; and controlling to execute a parking operation on the target vehicle based on the parking control mode. According to the invention, intelligent parking control of the vehicle can be realized, and the safety of a driver and the vehicle is effectively improved.

The invention relates to the technical field of vehicle braking control, in particular to a self-adaptive error tolerance automatic emergency braking system and method, and provides a self-adaptive error tolerance automatic emergency braking system and a forward collision early warning system. The method aims at solving the accuracy problem caused by sensor errors in an existing system. The method specifically comprises the following steps: introducing a first-order error propagation model to quantify a key safety index error; comprising the steps of collision time real-time estimation based on a forward sensor, error propagation and tolerance analysis and FCW / AEB trigger logic design introducing a fault-tolerant band. In the design, the maximum tolerance error is set, and the sensor index requirement is reversely deduced, so that the robustness and safety of the system are improved, a quantifiable fault-tolerant boundary is provided for the AEB system, the application effect of the system in a complex road environment is improved, and the method is particularly suitable for high-risk scenes such as expressways and urban expressways and has wide application prospects. And the fault-tolerant capability and the practical application effect of the system are enhanced.