1154 results about "Automatic braking" patented technology

A method for collision avoidance using automated braking and steering comprising: determining an actual distance to an obstacle in a path of a vehicle; determining a relative velocity between the obstacle and the vehicle; determining a first distance sufficient to avoid collision by braking only; determining a second distance sufficient to avoid collision by combined braking and steering around the obstacle. The method also includes: applying braking if at least one of, the first distance exceeds the actual distance and the first distance is within a selected threshold of the actual distance. If the actual distance exceeds the second distance and a lane change is permitted, steering control to affect a lane change is applied.

The invention provides a full-automatic parking system. The full-automatic parking system comprises a processing module, a parking button, an automobile taking button, a steering subsystem, a braking subsystem, an engine subsystem and an automobile combined detection sensor. When a processing chip detects that the parking button or the automobile taking button is pressed, an automobile is controlled to enter a garage or exit from the garage according to a garage entering path or a path of coming out of the garage. Automobile parking place automatic detection, automatic steering, automatic driving and automatic braking parking are integrated, the function of automatically entering the garage or coming out of the garage for the automobile can be achieved as long as a driver presses an automobile key nearby the automobile or the parking button or the automobile taking button on a mobile phone APP, manual control is not needed for the driver, and therefore operation is convenient. In addition, according to a parking method of the full-automatic parking system, for different target parking places, corresponding paths of entering the garage or coming out of the garage can be selected so that the automobile can enter or come out of the garage, using is convenient, the paths of entering or coming out of the garage are planned based on coordinates, automobile parking is set right, and accuracy is better.

A vehicle on-board unit of a host vehicle is configured to activate its brake lights upon determining a vehicle traveling condition exists that is indicative of a potentially inadequate safety zone between the host vehicle and a following vehicle. The vehicle on-board unit has a vehicle traveling condition detecting section, an automatic brake light triggering section and a brake light activating section. The vehicle traveling condition detecting section detects the vehicle traveling condition indicative of a potentially inadequate safety zone. The automatic brake light triggering section outputs a brake light activation signal upon determining a predetermined condition has been satisfied based upon the detected vehicle traveling condition. The brake light activating section activates the brake lights without a braking operation being performed upon receiving the brake light activation signal from the automatic brake light triggering section.

A wind turbine rotor is decelerated and locked in a target rotational position in relation to rotation of the rotor about the rotor axis. The rotational position of the rotor in relation to the rotational axis is detected relative to at least one target rotational position. Once the rotor reaches one of the target rotational positions, the rotor is halted and automatically locked in the target rotational position.

In a method for assisting a driver of a vehicle in a driving maneuver, at least the surrounding area in front of the vehicle in the direction of travel is monitored, in order to detect objects with which the vehicle would collide if the vehicle maintained its direction of travel; in the event of an imminent collision with an object, a necessary steering action and/or a necessary braking action being indicated to the driver, and/or an automatic steering action and/or an automatic braking action being taken, in order to prevent a collision with the object. The contour of the body of the vehicle is taken into account for ascertaining if a collision with the object is imminent.

A method and system are disclosed for tracking objects which are crossing behind a host vehicle. Target data from a vision system and two radar sensors are provided to an object detection fusion system. Salient points on the target object are identified and tracked using the vision system data. The salient vision points are associated with corresponding radar points, where the radar points provide Doppler radial velocity data. A fusion calculation is performed on the salient vision points and the radar points, yielding an accurate estimate of the velocity of the target object, including its lateral component which is difficult to obtain using radar points only or traditional vision system methods. The position and velocity of the target object are used to trigger warnings or automatic braking in a Rear Cross Traffic Avoidance (RCTA) system.

An electrostatic comb drive suitable for micro-electro-mechanical systems ("MEMS") application uses shaped fingers to achieve bi-directional actuation from a uni-polar actuation pulse. The finger shape also provides auto-braking of the movable member of the drive using a simple actuating pulse. In a further embodiment, an end stop inhibits overshoot and a back spring pushes the movable portion of the device back toward an operating position. In yet a further embodiment, a Vernier scale is provided on the movable portion of the drive relative to the fixed portion of the drive to indicate relative shift of these portions after the device is fabricated.

A collision mitigation controller drives a target brake to be controlled for assisting driver's collision-avoidance operation when a calculated collision time is less than an automatic brake a1 judgment line which is determined in advance. The controller drives the automatic brake a1 in order to mitigate damage generated by a collision with an obstacle or another vehicle when the collision time is less than an automatic brake a2 judgment line which is also less than the automatic brake a1 judgment line. The controller decreases the braking force for the automatic brake a2 when judged that the automatic brake a1 is not driven, as compared with the judgment where the automatic brake a1 is driven. When the automatic brake a2 drives the target brake, it is possible to avoid a collision where own vehicle is struck from behind by the rear vehicle which runs on a same traffic lane.

Hand-propelled vehicle (10) such as a pram or stroller has electrically-operated brake apparatus (13) which is applied automatically on a user releasing their grip from handle (12). Braking does not occur immediately grip or touch sensors (17) on handle (12) register that the user has released handle (12). Programmable controller (19) is provided which only applies brake (13) if sensors (16) detect movement of vehicle (10) and/or that vehicle (10) has moved more than a set distance subsequent to release of handle (12). Therefore braking apparatus (13) acts as a safety feature that only applies if, say, a vehicle is released on a slope and movement due to the slope is detected.

The invention relates to an initiative anticollision self-adapting fuzzy control method for a vehicle. The method comprises the following steps: measuring the relative speed of a self vehicle and a front vehicle and the speed of the self vehicle respectively by a radar speed measurement sensor and a hall vehicle speed sensor on the self vehicle; according to the situations of weather, road surfaces, vehicle types and loads and manual input information, obtaining the largest braking deceleration that the self vehicle and the front vehicle possibly achieve, and at the same time, according to a distance between the two vehicles, dividing the control behavior of the self vehicle into four grades; and comparing the actual distance D between the two vehicles, measured by a radar distance measurement sensor, with a safe vehicle following distance, a warning distance, a fuzzy control automatic brake distance and an emergency braking distance, and determining which section the actual distance between the vehicles falls into, so as to make a corresponding action. According to the method disclosed by the invention, a control system can be adjusted in a self-adapting manner without changing a fuzzy control rule list and a fuzzy control algorithm list, so that the control system can be adaptive to the changes of the situations of individual types of drivers, the weather, the road surfaces, the vehicle types, the loads and the like, and the stability, the reliability and the robustness of automatic brake are maintained.

When it is judged that a possible collision of the own vehicle with a preceding vehicle is avoidable by operation of either one of the brake pedal and steering wheel, a first grade braking force is automatically produced. While, when it is judged that the possible collision is unavoidable by operation of either of the brake pedal and steering wheel, a second grade braking force is automatically produced, which is greater than the first grade braking force.

A vehicle driving assist system is configured to provide a driver with advanced notification regarding changes in the operating states of the controls when several controls are being executed. The vehicle driving assist system has a controller configured to execute an accelerator pedal actuation reaction force control based on a risk potential that indicates a degree of convergence between the host vehicle and a preceding obstacle and an automatic braking control based on the possibility of contact between the host vehicle and the preceding obstacle. When the automatic braking control will change from a low operating state to a high operating state while an actuation reaction force is being generated in the accelerator pedal in accordance with the risk potential, a pulsed supplemental reaction force is generated in the accelerator pedal and an alarm sound is generated.

An improved method and associated system for controlling the brake system of a vehicle train including a tractor vehicle and a trailer vehicle, wherein a control device disposed in the tractor vehicle is adapted to initiate automatic braking of the trailer vehicle, and wherein the conditions of the driving roadway, especially the coefficient of friction, are taken into account in braking of the trailer vehicle. The intensity of braking of the trailer vehicle is reduced by the control device when a coefficient of friction smaller than a predetermined minimum value is detected between the vehicle train or parts thereof and the driving roadway. One application of the invention is in load trains equipped with means for preventing rollover or overturning.

A control system for controlling the ride height of a vehicle, the system including a controller that receives and processes multiple variable inputs to provide enhanced ride height control. The inputs include a brake system signal including an Automatic Braking System (ABS) signal and/or an Electronic Braking System (EBS) signal, a remote setpoint signal and/or a fluid dump signal. The system also provides for measuring the actual ride height, filtering the measured ride height, determining if the filter ride height signal exceeds a threshold level, and adjusting the ride height accordingly.

A cruise control system for motor vehicles is described, having a sensor device for measuring the vehicle's performance characteristics and for measuring the distance to a target object ahead of the vehicle, and a controller which is used to control the vehicle's speed or acceleration as a function of the measured performance characteristics and distance data and has a stop function for automatically braking the vehicle to a standstill as well as at least one standstill state in which the vehicle is held in a stationary position by automatic brake activation, and from which it may only drive off again via an operational command by the driver, the operational command becoming effective only when a confirmation signal is present in addition to the operational command.

In a vehicle control system, when an inter-vehicular distance between a subject vehicle and a preceding vehicle detected by a radar device is less than or equal to a predetermined value, automatic braking is performed or an alarm is activated to alert a driver to prevent a collision. A stationary object detection threshold value of a reception level of a reflected wave for detecting a stationary object is set higher in a predetermined region compared to a moving object detection threshold value of a reception level of a reflected wave emitted from the radar device for detecting a moving object such as a preceding vehicle. Thus, the system prevents a gate or an article in the roadway, which are not obstacles, from being erroneously recognized as obstacles. As such, unnecessary automatic braking and alarm activation for the gate and the article in the roadway can be prevented.

It is checked based on entered information as to whether a vehicle should be decelerated or not (S106). When the vehicle should decelerate, an automatic brake operation is carried out with a braking force being set to be smaller by a predetermined ratio than an estimated maximum braking force estimated based on a road surface friction coefficient μ(S110).

When a host vehicle travels while being decelerated by an intervention of automatic braking, a support ECU calculates a collision prediction speed at a collision prediction position and determines whether or not the collision prediction speed exceeds a collision prediction speed threshold. The support ECU allows an automatic steering for collision avoidance to intervene only in a case where the collision prediction speed is determined to be equal to or less than the collision prediction speed threshold and prohibits the intervention of the automatic steering in a case where the collision prediction speed is determined to exceed the collision prediction speed threshold.