B60T2230/04

Method for Controlling a Braking Torque of a Vehicle During an at Least Partly Automated Traversal of an Incline And/or a Decline, Computing Device, and Assistance System for a Vehicle
20240270220 · 2024-08-15 ·

Systems, methods, and apparatuses are provided for controlling a braking torque of a vehicle while travelling in an at least semiautomated manner. Standstill data is received, while the vehicle is traveling in the at least semiautomated manner on an incline and/or a decline, when a temporary standstill of the vehicle is requested by the assistance system. Speed values are continuously received that describe a speed of the vehicle while the vehicle is decelerating prior to the temporary standstill. Slope data is continuously determined that describes an angle of the incline or decline. An amended speed value is continuously computed that depends on the speed value and the slope data. An electronic control signal is output to control the braking torque to bring the vehicle to the temporary standstill when the amended speed value decreases below a predetermined threshold value and the standstill data are received.

Braking control device
12054133 · 2024-08-06 · ·

A braking control device, when stopping a vehicle in a state where a braking force is being applied to the vehicle, executes a reducing control of reducing the braking force corresponding to a braking request before the vehicle stops and executes an increasing control of increasing the braking force corresponding to the braking request before the reducing control in order to suppress vehicle pitching behavior generated when the braking force is applied to the vehicle. The control device sets braking force increase amount in the increasing control based on a difference distance that is a difference between a first distance correlated with a vehicle traveling distance from a reduction start timing when the reducing control is executed until the stopping of the vehicle and a second distance correlated with a vehicle traveling distance from the reduction start timing when the reducing control is not executed until the stopping of the vehicle.

BRAKING SYSTEM

A computer is programmed to determine a target brake torque that is below a preset holding brake torque and at least high enough to hold a vehicle at standstill; and upon detecting that a brake of the vehicle is applied and a speed of the vehicle is below a threshold, monotonically reduce a brake torque of the brake so that the brake torque reaches the target brake torque when the speed reaches substantially zero.

SLOW SPEED AUTOMATED VEHICLE BRAKE PRESSURE CONTROL SYSTEM

A brake control system for operating brakes of an automated vehicle at slow speed includes a motion-detector and a controller. The motion-detector detects relative-movement of a host-vehicle relative to a stationary-feature located apart from the host-vehicle. The controller is configured to operate brakes of the host-vehicle. The controller determines a vehicle-speed of the host-vehicle based on the relative-movement when the vehicle-speed is less than a speed-threshold, and regulates brake-pressure of the brakes based on the vehicle-speed.

Braking force control device

A braking force control device includes an actuator configured to control a braking force generated in vehicle wheels of a vehicle and a control unit configured to output a braking force command value to the actuator. The control unit is configured to perform at least one of the following processes of generating a braking force command value by performing a filter processing on a required braking force based on a braking operation amount using a filter having a smaller damping ratio than a damping ratio of a pitch motion of the vehicle when the required braking force increases, or generating the braking force command value by performing the filter processing on the required braking force based on the braking operation amount using a filter having a greater damping ratio than the damping ratio of the pitch motion of the vehicle when the required braking force decreases.

Vehicle control apparatus and vehicle control method

A vehicle control apparatus detects an object in a travel direction of a vehicle. The vehicle control apparatus restrains a drive force of the vehicle when an object is detected. The vehicle control apparatus acquires a jerk in a travel direction on the basis of a behavior of the vehicle. When an accelerator of the vehicle is actuated while the vehicle is in a state in which the drive force of the vehicle is restrained, and a speed of the vehicle is lower than a predetermined value. The vehicle control apparatus increases the drive force, and decreases a post-increase drive force on the basis of the acquired jerk.

Use of automatic pitch control to improve braking performance

A flight control law enhances braking efficiency through the operation of aircraft elevators (or another pitch control system) using measured longitudinal acceleration and/or pedal position as references to the control law. Through this solution, it is possible to increase the vertical load in the main landing gear and consequently enhance braking efficiency.

Vehicle control system

The vehicle control system includes a braking force generating device (6, 22) configured to generate a braking force to shift a load of a vehicle to a side of front wheels thereof at an initial stage of a cornering, and a control device (31) configured to control the braking force generated by the braking force generating device. The control device calculates an additional deceleration (Gxadd) according to vehicle state information, calculates a requested fore and aft acceleration (Gxr) according to a requested fore and aft force (Fxr) for the vehicle, calculates a correction coefficient (K) for weakening the additional deceleration according to the requested fore and aft acceleration, corrects the additional deceleration by the correction coefficient, and calculates an additional braking force (Fbadd) to be generated by the braking force generating device according to the corrected additional deceleration.

COMPUTER SYSTEM AND A COMPUTER-IMPLEMENTED METHOD OF INCREASING DRIVER COMFORT DURING A BRAKING EVENT

A computer system including processing circuitry configured to: determine, during a braking event of a vehicle, an oscillation amplitude of a currently oscillating part of the vehicle; perform an amplitude comparison by comparing the determined oscillation amplitude with a predefined reference value; receive a brake request value indicative of a desired total brake torque or total brake force; perform a brake request comparison by comparing the received brake request value with a predefined brake request value; and control a brake distribution between front axle brakes and rear axle brakes of the vehicle based on the amplitude comparison and the brake request comparison, wherein the brake distribution is in the form of a brake torque distribution of said desired total brake torque or a brake force distribution of said desired total brake force. There is also disclosed a computer-implemented method.

VEHICLE CONTROL DEVICE, VEHICLE CONTROL METHOD, AND VEHICLE CONTROL SYSTEM
20240308354 · 2024-09-19 ·

In a vehicle control device, a vehicle control method, and a vehicle control system according to one embodiment of the present invention, a physical quantity relating to a speed of a vehicle and a physical quantity relating to a requested braking force required to decelerate the vehicle are acquired, and a driving force is generated by a driving device under a state in which a friction braking force is being generated when the vehicle is to be decelerated based on the physical quantity relating to the requested braking force.