B60T2250/03

Braking control device
12151663 · 2024-11-26 · ·

A control device includes: a first braking unit, that applies a first braking force to a steering wheel of a vehicle; a second braking unit, that applies a second braking force to a non-steering wheel of the vehicle; and a control device that controls the first braking unit, and the second braking unit, according to a target braking force, where the control device includes a steering angle information acquiring unit that acquires a steering angle-related value related to a steering angle of the steering wheel, and a distribution changing unit that executes a distribution change control of changing a braking force distribution between the first braking force and the second braking force based on the steering angle-related value when the target braking force is applied.

APPARATUS AND METHOD FOR ESTIMATING INCLINATION OF VEHICLE
20240375624 · 2024-11-14 · ·

An apparatus for estimating inclination of a vehicle includes a vehicle information receiver configured to collect travel information of the vehicle including a wheel speed, a driving torque, and a longitudinal acceleration sensor value, a vehicle stop determinator configured to determine, based on the travel information received from the vehicle information receiver, whether the vehicle satisfies a vehicle stop condition, a disturbance corrector configured to correct disturbance of the longitudinal acceleration sensor value depending on whether the vehicle stop condition is satisfied, and An inclination estimator configured to estimate the inclination of the vehicle using a longitudinal acceleration input value corrected by the disturbance corrector.

STATE CALCULATION APPARATUS, STATE CALCULATION METHOD, AND RECORDING MEDIUM STORING PROGRAM FOR MOVING OBJECT
20180095103 · 2018-04-05 ·

A state calculation apparatus includes an receiver that receives azimuths of objects around a vehicle and their relative velocities to the vehicle, detected by a first sensor used for the vehicle, as target information, and a velocity and a travel direction of the vehicle, detected by a second sensor installed on the vehicle and having an error variance, as state information, and a controller that calculates velocities and travel directions of the vehicle, using the state information and based on a plurality of the azimuths and a plurality of the relative velocities extracted from the target information and that outputs at least either a velocity or a travel direction of the vehicle by using a specified filter to filter mean values of and error variances in the calculated velocities and travel directions and at least either the velocity or the travel direction detected by the second sensor.

Autonomous emergency braking system and method of controlling the same
09925963 · 2018-03-27 · ·

Disclosed herein are an autonomous emergency braking system and a method of controlling the same, capable of autonomously performing emergency braking using information detected by a radar sensor. The autonomous emergency braking system includes a radar sensor and an ECU. The radar sensor transmits a radio wave and receives a wave reflected from an object in front of a vehicle, so as to detect the object in front of the vehicle. The ECU receives object detection information from the radar sensor, and stops or puts off autonomous emergency braking when the number of times the object is detected within a predetermined distance is equal to or greater than a predetermined number of times, based on the received object detection information.

Operation control system for vehicle, vehicle, and program

The present invention improves emergency evasion performance. An operation control system for a vehicle that is provided with a risk-potential determining unit that determines the risk potential of a vehicle on the basis of external environment information and/or vehicle information, a friction braking unit that applies friction braking force to the vehicle, and a regenerative braking device that applies regenerative braking force to the vehicle, the operation control system being provided with a control value determining unit that determines a first control value that is for determining the size of the friction braking force and determines a second control value that is for determining the size of the regenerative braking force. The control value determining unit determines at least the first control value on the basis of the risk potential determined by the risk-potential determining unit.

METHOD FOR IMPRINTING HAPTIC FEEDBACK ON A BRAKE PEDAL
20180065606 · 2018-03-08 · ·

A method for haptic feedback on a brake pedal of a motor vehicle. A current stability index describing the current driving situation is compared to a stored critical stability index. A haptic feedback is imprinted on the brake pedal of the motor vehicle when the ratio between the current stability index and the critical stability index exceeds a previously defined limit value.

Brake Control Apparatus for Vehicle
20180043873 · 2018-02-15 · ·

A brake control apparatus includes: a master cylinder that outputs a brake fluid at a master pressure; a master pressure changing device that can change the master pressure irrespective of an operation of a brake pedal; a brake actuator; and a control unit that executes antilock control by reducing a brake pressure of a target wheel. Modes of the antilock control include a normal mode and a pseudo mode. In the pseudo mode, the control unit operates the master pressure changing device such that the master pressure obtains a target value of the brake pressure of the target wheel, and changes the brake pressure of the target wheel in an interlocking manner with the master pressure. When the normal mode is unavailable, the control unit executes the antilock control in the pseudo mode.

METHOD AND DEVICE FOR ESTIMATING THE FRICTION VALUES OF A WHEEL OF A VEHICLE AGAINST A SUBSTRATE
20180037234 · 2018-02-08 · ·

A method and a device for estimating coefficients of friction of a wheel of a vehicle with respect to an underlying surface including decomposing a supplied trajectory into individual curve segments, estimating a lateral force and a slip angle for a front axle of the vehicle, assigning respectively estimated lateral forces and slip angles relating to the associated individual curve segments and storing these value pairs in a memory, estimating a tire characteristic curve for each of the curve segments based on the value pairs stored for the respective curve segment in the memory, estimating a coefficient of friction for each curve segment based on the respectively estimated tire characteristic curve, and storing the estimated coefficients of friction relating to the respectively associated curve segments in a coefficient of friction map.

FUZZY-BASED CONTROL SYSTEM IN A MOTOR VEHICLE FOR CONTROLLING A SPEED OF THE MOTOR VEHICLE OR A BRAKE PRESSURE OF A BRAKE OF THE MOTOR VEHICLE
20180029568 · 2018-02-01 · ·

A fuzzy-based control system in a motor vehicle for controlling a speed comprises a brake pressure measurement unit, a signal processing unit and a control unit. The brake pressure measurement unit is adapted as a finite state machine to measure a current brake pressure of a brake of a wheel of the motor vehicle dependent on a trigger. The signal processing unit is adapted to estimate a current adhesion value between a tyre associated with the wheel and the current ground, based on the current brake pressure of the brake and further measurement values. The estimating comprises an inference based on fuzzy rules and a fuzzification, a subsequently a defuzzification of the inference. The control unit is adapted to control a speed of the motor vehicle or the brake pressure of the brake, based on the estimated current adhesion value .

TRAVEL ASSISTANCE DEVICE

A travel assistance device includes an actuator and an electronic control unit. The electronic control unit is configured to predict a future position of a vehicle and an object, set an assistance range around the vehicle, determine whether an avoidance start condition is satisfied and in which of a first roadway area, a second roadway area, and a sidewalk area the object is positioned, set the avoidance start condition and a movement range of the object, so that the avoidance start condition is more easily determined to be satisfied when the object is in the first roadway area than when the object is in the second roadway area, and more easily determined to be satisfied when the object is in the second roadway area than when the object is in the sidewalk area, and perform a collision avoidance operation when the avoidance start condition is satisfied.