Patent classifications
B60T2210/24
BRAKE FORCE CONTROL SYSTEM FOR VEHICLE
A brake force control system configured to allow a driver to control brake force finely only by operating an accelerator pedal, and to decelerate a vehicle to a target speed only by operating the accelerator pedal. The control system calculates a target deceleration to travel through a target site at a target speed in accordance with a decelerating factor. If a reference deceleration generated by returning the accelerator pedal to an initial position is equal to or less than the target deceleration, the control system increases the reference deceleration.
Deflection control apparatus
A deflection control apparatus is configured to perform a deflection control in which a subject vehicle is deflected by a braking force difference between left and right wheels. The vehicle control apparatus is provided with: a calculator configured, in the deflection control, (i) to calculate a target yaw rate so that the subject vehicle drives on a target track by the deflection control, and (ii) to calculate a target yaw moment by dividing the calculated target yaw rate by a coefficient based on a velocity of the subject vehicle; and a controller configured to control a braking force of each wheel so that the target yaw moment is applied to the subject vehicle.
Apparatus for warning a driver of a vehicle about a stationary object and vehicle having such an apparatus
An apparatus/vehicle for warning a driver of a vehicle or vehicle/trailer (V-VT) about a stationary object (SO): a) a sensor device having a detection area (DA) including a side DA arranged laterally from a vehicle side (VS) and extending front to rear, in the direction of a longitudinal centerline of the (V-VT), and detecting the SO within the DA; b) a control device to evaluate the sensor signals as to the SO detected within the DA and define a dynamically alterable warning area (WA) that is no more than the side DA; c) a warning device to generate a warning signal if the sensor device detects the object(s) in the WA; d) the control device, on detection of the SO within the side DA and on detection of the (V-VT) turning toward the VS on which the side DA is situated, to assign a triangular cross-section to the WA.
Vehicle travel control device
Provided is a vehicle travel control device which simultaneously achieves the behavioral stability of a vehicle and the continuity of travel assistance during vehicle travel assistance. The setting range of controlled variable to an actuator in travel assistance control is limited on the basis of the information having higher priority among road type information and road shape information. Thus, compared to when the setting range of the control variable is determined on the basis of only the road type information or the road shape information, it is possible to suppress excessive limitations on the applicable range/duration time of travel assistance.
APPARATUS FOR WARNING A DRIVER OF A VEHICLE ABOUT A STATIONARY OBJECT AND VEHICLE HAVING SUCH AN APPARATUS
An apparatus/vehicle for warning a driver of a vehicle or vehicle/trailer (V-VT) about a stationary object (SO): a) a sensor device having a detection area (DA) including a side DA arranged laterally from a vehicle side (VS) and extending front to rear, in the direction of a longitudinal centerline of the (V-VT), and detecting the SO within the DA; b) a control device to evaluate the sensor signals as to the SO detected within the DA and define a dynamically alterable warning area (WA) that is no more than the side DA; c) a warning device to generate a warning signal if the sensor device detects the object(s) in the WA; d) the control device, on detection of the SO within the side DA and on detection of the (V-VT) turning toward the VS on which the side DA is situated, to assign a triangular cross-section to the WA.
Method for setting a slip threshold and vehicle movement dynamics control device
A method for setting a slip threshold for a vehicle movement dynamics control device of a motor vehicle is provided. The method includes defining a slip threshold starting from which the vehicle movement dynamics control device is activated in order to reduce slip, and determining wheel-specific minimum slip values for the wheels of the motor vehicle, which slip values are derived from the respective wheel-specific slip signals. The method also includes detecting a geometric slip by correlating all the determined wheel-specific minimum slip values with one another, and evaluating the wheel-specific minimum slip values that are correlated with one another. The method also includes raising the slip threshold in the event of geometric slip being detected. The present disclosure also relates to a vehicle movement dynamics control device.
Road shape recognition apparatus
A road shape recognition apparatus is mounted in a vehicle. The road shape recognition apparatus acquires a road image, determines a road shape using the road image, recognizes the road shape based on the road image within a predetermined recognition range, and estimates the road shape outside of the recognition range based on the road shape within the recognition range. The road shape recognition apparatus estimates the road shape outside of the recognition range and within a first distance as a curved line of which a curvature change rate is constant, and the road shape farther than the first distance as a curved line of which a curvature is constant.
METHOD FOR DETERMINING AN ACTIVATION CRITERION FOR A BRAKE APPLICATION AND EMERGENCY BRAKE SYSTEM FOR PERFORMING THE METHOD
A method for automatically activating a brake application in a vehicle includes using at least one detection device, detecting at least one object in the environment of the vehicle and, using at least one processor, determining that a vehicle is on a collision course with the at least one object, determining an S-shaped avoidance trajectory of the vehicle and at least one avoidance criterion based at least in part on the S-shaped avoidance trajectory, determining two extreme values of a transverse acceleration of the vehicle from the S-shaped avoidance trajectory, determining whether the at least one avoidance criteria is fulfilled by comparing the two extreme values with a threshold value, wherein the avoidance criteria is fulfilled when the two extreme values fall below the threshold value, and activating an automatic brake application in the vehicle when an activation criterion for the automatic brake application is fulfilled.
Vehicle acceleration and deceleration control device
A target acceleration/deceleration setting unit (28) of a vehicle acceleration/deceleration controller (16) sets a target acceleration or deceleration at a location at which a curve starts to be a predetermined maximum deceleration, sets a target acceleration or deceleration at a location at which the curve ends to be a predetermined maximum acceleration, sets a target acceleration or deceleration at a predetermined intermediate location between the location at which the curve starts and the location at which the curve ends to be zero, and sets a target deceleration D (Ld) at a location to which the travelling distance from the location at which the curve starts is Ld and a target acceleration A (La) at a location to which the travelling distance from the predetermined intermediate location is La to satisfy respective predetermined relations.
A CONTROL SYSTEM AND METHOD FOR A VEHICLE COMPRISING AN AUTONOMOUS EMERGENCY BRAKING SYSTEM
A control system is provided for a vehicle including an autonomous emergency braking system, characterized in that the control system includes: a brake control arrangement adapted to apply a friction-estimating braking when the autonomous emergency braking system has initiated a possible intervention; a brake force capacity estimation arrangement adapted to estimate the brake force capacity of the vehicle as a function of longitudinal wheel slip based on the applied friction-estimating braking; a road information arrangement adapted to obtain information about road curvature ahead of the vehicle; a lateral tyre force prediction arrangement adapted to predict lateral tyre force needed during autonomous emergency braking based on the obtained information about road curvature; and a brake strategy adaptation arrangement configured to adapt the brake strategy of the autonomous emergency braking system based on the estimated brake force capacity and the predicted lateral tyre force needed.