B60T8/17555

METHOD AND CONTROL APPARATUS FOR AVOIDING JOLT MOMENTS DURING A DECELERATION OF A VEHICLE
20220176926 · 2022-06-09 ·

A method for reducing jolt moments during a deceleration of a vehicle by a braking system, the braking system having at least one electrically actuatable pressure supply device, hydraulic wheel brakes and a valve device. The valve device is designed to apply a pressure provided by the pressure supply device to a selectable subset of the wheel brakes. The method includes: determining a braking requirement, determining a vehicle speed, checking whether the vehicle speed is below a defined threshold value, and if the vehicle speed is below the threshold value, selecting the subset of wheel brakes and applying a pressure provided by the pressure supply device to only the subset of wheel brakes, the pressure being determined according to the selected subset of wheel brakes.

Method for operating an control device for a braking system of a motor vehicle, control device and motor vehicle
11345322 · 2022-05-31 · ·

The invention relates to a method for operating a control device for a braking system of a motor vehicle, wherein the control device receives a braking request from a driver assistance system and determines a target value of a braking operation parameter of the braking system and determines an ideal temporal process for the braking operation parameter, which gradually leads to the target value, complying with a predetermined jerk criterion, and a determines a control fault of an actual value of the braking operation parameter in relation to the ideal process and determines a request value for a controller of a brake pressure pump of the braking system from the control fault on the basis of a controller unit. According to the invention, the control device determines a maximum achievable temporal gradient of the braking operation parameter by means of the brake pressure pump and examines whether the gradient fulfills a freezing criterion and, in the case of the freezing criterion being fulfilled, limits at least one control operation parameter of the controller unit and/or a gradient of the brake request.

Braking force controller and vehicle

A braking force controller causes a first actuator unit to generate a target jerk when the target jerk is equal to or larger than a first jerk, causes the first actuator unit to generate the first jerk and a second actuator unit to generate a jerk obtained by subtracting the first jerk from the target jerk as an additional jerk when the target jerk is smaller than the first jerk and equal to or larger than the sum of the first jerk and a second jerk, and causes the first actuator unit to generate the first jerk and the second actuator unit to generate the second jerk as the additional jerk when the target jerk is smaller than the sum of the first jerk and the second jerk.

Vehicle control systems and methods

Methods and system for vehicle control. The methods and systems determining actuator commands data based on a vehicle stability and motion control function. The vehicle stability and motion control function having planned trajectory data, current vehicle position data and current vehicle heading data as inputs, having the actuator commands data as an output and utilizing a model predicting vehicle motion including predicting vehicle heading data and predicting vehicle position data. The actuator commands data includes steering and propulsion commands. The actuator commands data includes differential braking commands for each brake of the vehicle to correct for any differential between the planned vehicle heading and the current vehicle heading data or the predicted vehicle heading data. The methods and systems output the actuator commands data to the actuator system.

METHODS AND APPARATUS TO MITIGATE HARD-BRAKING EVENTS

Methods, apparatus, systems, and articles of manufacture are disclosed herein that mitigate hard-braking events. An example apparatus at least one memory; instructions; and processor circuitry to execute the instructions to: determine a danger level associated with an object, the danger level indicative of a first measure of damage corresponding to a trajectory of the object compared to a trajectory of a vehicle; determine, based on the first danger level, a danger measure based on at least one of a position of the object, a velocity of the object, an acceleration of the object, a direction of travel of the object, a weight or mass of the object; and generate instructions to transmit to a steering system or a braking system of the vehicle based on the determination.

VEHICLE CONTROL SYSTEMS AND METHODS
20220119008 · 2022-04-21 · ·

Methods and system for vehicle control. The methods and systems determining actuator commands data based on a vehicle stability and motion control function. The vehicle stability and motion control function having planned trajectory data, current vehicle position data and current vehicle heading data as inputs, having the actuator commands data as an output and utilizing a model predicting vehicle motion including predicting vehicle heading data and predicting vehicle position data. The actuator commands data includes steering and propulsion commands. The actuator commands data includes differential braking commands for each brake of the vehicle to correct for any differential between the planned vehicle heading and the current vehicle heading data or the predicted vehicle heading data. The methods and systems output the actuator commands data to the actuator system.

VEHICLE TRAVEL CONTROL DEVICE

A vehicle travel control device includes computation circuitry, and a device controller that controls actuation of a traveling device mounted on a vehicle, based on a result from the computation circuitry. The computation circuitry identifies a vehicle outdoor environment based on an output from image circuitry that acquires image information of vehicle outdoor environment, sets a route on which the vehicle is to travel, in accordance with the vehicle outdoor environment previously identified, determines a target motion of the vehicle to follow the route previously set, calculates a target physical quantity to be executed by the traveling device to achieve the target motion previously determined, and calculates a controlled variable of the traveling device such that the target physical quantity calculated is achieved, and the device controller outputs a control signal to the traveling device so as to control the traveling device to control a motion of the vehicle.

Vehicle behavior control device

The vehicle behavior control device comprises a brake control system (18) capable of applying different braking forces, respectively, to right and left road wheels of a vehicle (1). The vehicle behavior control device further comprises: a steering angle sensor (8); a vehicle speed sensor (10); a yaw rate sensor (12); and a yaw moment setting part (22) in PCM (14) configured to decide a target yaw rate of the vehicle based on a steering angle and a vehicle speed, and set, based on a change rate of a difference between an actual yaw rate and the target yaw rate, a yaw moment oriented in a direction opposite to that of the actual yaw rate of the vehicle, as a target yaw moment, whereby the brake control system can regulate the braking forces of the road wheels so as to apply the target yaw moment to the vehicle.

Vehicle control apparatus
11173909 · 2021-11-16 · ·

When having determined that an operation of a brake operator is initiated at a first timing and the operation amount continues to increase until a second specific timing arrives to become constant at a second timing, vehicle control means which a vehicle control apparatus comprises executes braking force control in such a manner that a time-differential value of controlled braking force during a first period from the second timing to a first terminal timing matches with a time-differential value of controlled braking force at the second specific timing as well as executes driving force control in such a manner that a time-differential value of the controlled driving force during the first period becomes a value less than or equal to a sum of a time-differential value of the controlled driving force at the second specific timing and a time-differential value of operation braking force at the second specific timing.

VEHICLE CONTROL DEVICE, VEHICLE CONTROL METHOD, AND VEHICLE CONTROL SYSTEM
20230322195 · 2023-10-12 ·

A vehicle control device, a vehicle control method, and a vehicle control system according to one embodiment of the present invention are configured to acquire 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 and to generate a driving force 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.