Abstract:
Under a normal condition, brake fluid pressure generated by a slave cylinder (23) that operates according to operation of a brake pedal (12) is fed to a wheel cylinder (16, 17; 20, 21) to perform braking, while under a fault condition of the slave cylinder (23), brake fluid pressure generated by a master cylinder (11) for backup that operates by the operation of the brake pedal (12) is fed to the wheel cylinder (16, 17; 20, 21) to perform braking. In the latter case, brake fluid fed by a pump (64) is fed to the wheel cylinder (16, 17; 20, 21), before the brake fluid is fed from the master cylinder (11) to the wheel cylinder (16, 17; 20, 21) by a driver depressing the brake pedal (12). Accordingly, without leading to an increase in the stroke of the brake pedal (12), a required amount of brake fluid can be fed to the wheel cylinder (16, 17; 20, 21) to thus ensure a sufficient braking force.
Abstract:
A method is provided for controlling a vehicle while operating under a cruise control so as to improve response to driver braking operation and shorten the free running distance by applying a preliminary braking force to a braking device when a preceding vehicle can no longer be recognized during preceding vehicle following control. Basically, the method includes: detecting a preceding vehicle and an inter-vehicle distance to the preceding vehicle from a host vehicle equipped with the vehicle driving control device; executing a preceding vehicle following control to control the inter-vehicle distance to the preceding vehicle towards a target inter-vehicle distance when the preceding vehicle has been recognized; and generating a preliminary braking force upon determination that no preceding vehicle can be recognized during the preceding vehicle following control performed in which the preceding vehicle was previously detected.
Abstract:
A system and method for providing mechanical time dilation by pre-braking a vehicle in the event there is a collision threat so as to reduce or eliminate the need for full automatic braking if the collision becomes imminent. The system calculates a time dilation deceleration to either maintain a time to collision at a previous value before the calculation or at a predetermined value. The system also estimates a projected closing speed of the vehicle to the object at a distance that would require full automatic braking to prevent a collision. The system then determines whether the time dilation deceleration is greater than a decelerating threshold and, if so, provides automatic vehicle braking at the threshold until the vehicle comes to a full stop. If the time dilation deceleration is not greater than the threshold, then the system provides automatic braking to decelerate the vehicle at the time dilation deceleration.
Abstract:
A method is provided for controlling a vehicle while operating under a cruise control so as to improve response to driver braking operation and shorten the free running distance by applying a preliminary braking force to a braking device when a preceding vehicle can no longer be recognized during preceding vehicle following control. Basically, the method includes: detecting a preceding vehicle and an inter-vehicle distance to the preceding vehicle from a host vehicle equipped with the vehicle driving control device; executing a preceding vehicle following control to control the inter-vehicle distance to the preceding vehicle towards a target inter-vehicle distance when the preceding vehicle has been recognized; and generating a preliminary braking force upon determination that no preceding vehicle can be recognized during the preceding vehicle following control performed in which the preceding vehicle was previously detected.
Abstract:
A single-track vehicle comprising a brake control unit, wherein the brake control unit includes a means for actively assisting the driver by means of an active variation or limitation of a vehicle speed or of a quantity derived therefrom, in particular vehicle acceleration.
Abstract:
In a method for shortening the stopping distance of a vehicle (2), in which a braking operation is prepared when a predefined event occurs, the braking operation is prepared if a driving situation which is implausible to a driving assistance system occurs. This permits traffic safety to be improved.
Abstract:
A collision prevention method for motor vehicles is provided, in which method obstacles in front of the vehicle are detected by an on-board positioning system, a collision probability is calculated from the position data, and one or more responses to prevent a collision are triggered as a function of the collision probability. At least one of the responses is a preparatory measure accelerating the implementation of a command, which may be output later, to decelerate the vehicle, without the preparatory measure itself having any significant decelerating effect on the vehicle.
Abstract:
A method and a device for automatically triggering a deceleration of a vehicle so as to prevent a collision with another object. Objects in the range of the vehicle's course being detected using signals of an apparatus for sending and receiving radar signals or lidar signals, or of an apparatus for receiving video signals. An endangerment potential is determined as a function of the objects detected, and when a predefined endangerment potential theshold value, which may be less than the triggering threshold value for the deceleration, is exceeded, the deceleration means of the vehicle are reset to a state in preparation for braking. Furthermore, additional vehicle functions may be carried out when the endangerment potential threshold value is exceeded, whereby passenger safety in this travel situation is enhanced.
Abstract:
An apparatus for preventing a vehicle collision by using radio communication includes an accelerator pedal sensor for detecting the manipulation state of an accelerator pedal. A control unit receives a signal detected by the accelerator pedal sensor and determines whether the vehicle is in a dangerous condition for outputting a relevant control signal. A radio communication transmitting/receiving module receives the control signal from the control unit and transmits or receives the information to or from vehicles of its dangerous condition. A Hydraulic Control Unit (HCU) receives the control signal of the control unit and maintains the brake system in a standby operating mode. When the information of a prospective hazardous condition is transmitted from the front vehicle, the brake systems of rear vehicles are pre-pressured and are shifted to a standby operating mode, thereby reducing the braking distance of the vehicles and preventing vehicle accidents.
Abstract:
The present invention relates to a method for carrying out an automatic braking action, wherein at least one quantity representative of the application of the brake pedal is determined and an automatic braking action is triggered when at least one limit value (brake pedal application limit value) of the quantity representative of the application of the brake pedal is exceeded, wherein the brake pedal application limit value is modified or the quantity representative of the brake pedal is weighted according to at least one action of the driver, in particular a detected movement of the driver's foot, prior to an application of the brake pedal of the braking action considered or prior to the considered braking action.