A brake-by-wire braking system for a vehicle having at least two wheels which are able to be braked is described. The braking system comprises at least two brake actuator units, each of which can be associated with one of the wheels of the vehicle which are able to be braked. The braking system further comprises a brake actuation unit for actuation by the driver for braking, having at least one sensor for detecting an activation of the brake actuation unit by the driver, an acceleration actuation unit having at least one sensor for detecting the activation of the acceleration actuation unit by the driver, and at least one electronic control unit which is adapted to operate one or both of the brake actuator units in order to bring about a braking force at an associated wheel. The control unit is adapted to operate the brake actuator units on the basis of an activation of the acceleration activation unit in the event of a fault or failure of the brake actuation unit.

A control system for a motor vehicle comprising an electronic control unit and a sensory system adapted to detect an obstacle is disclosed. The sensory system generates a first informative datum related to a distance of the vehicle from the obstacle at a first time instant and a second informative datum related to the height of the obstacle. The electronic control unit verifies that the obstacle height complies with a safety criterion as a function of the second informative datum, determines the space travelled by the vehicle between the first time instant and a second time instant as a function of the first informative datum when the obstacle height does not comply with the safety criterion, and controls a braking system and/or signalling system of the vehicle on the basis of the first informative datum and of the determined space to limit the risk of collision with the obstacle.

A braking control method and a braking control system of an electric mobility are provided, and the braking control method of the electric mobility according to an embodiment of the present disclosure comprises: activating a parking brake function; detecting a speed of the electric mobility when activating the parking brake function; if the speed of the electric mobility when activating the parking brake function is 0, short-circuiting a motor; detecting the speed of the electric mobility after short-circuiting the motor; and controlling the motor based on the speed of the electric mobility after short-circuiting the motor.

A method for operating a vehicle brake system, wherein the brake system has at least one friction brake and at least one regenerative brake. A defined switching pattern is specified for switching between a self-cleaning operating mode for cleaning the friction brake and a normal operating mode of the brake system. The method includes determining information describing the state of the at least one friction brake, determining the state of the at least one friction brake from the information, determining whether the state satisfies a specific switching criterion, and, if the self-cleaning operating mode is to be activated according to the switching pattern and the state of the friction brake does not satisfy the switching criterion, suppressing activation of the self-cleaning operating mode and maintaining the normal operating mode.

The invention relates to a slope brake pressure determining method and system. The method includes: a pre-braking slope estimated value is determined according to a specified cycle, where a current pre-braking slope estimated value is determined and is used as a first slope estimated value a.sub.estimate1, and a pre-braking slope estimated value of a previous cycle that is latched prior to the establishment of brake pressure is used as a second slope estimated value a.sub.estimate2; an instantaneous vehicle speed v.sub.brake prior to the establishment of the brake pressure is latched, a vehicle traveling distance l.sub.brake and time t.sub.brake are accumulated, and an in-braking slope estimated value a.sub.slop is determined based on the instantaneous vehicle speed v.sub.brake, the vehicle traveling distance l.sub.brake, and the time t.sub.brake; and pre-braking pressure p1 and in-braking pressure p2 are determined based on the second slope estimated value a.sub.estimate2 and a third slope estimated value a.sub.estimate3, respectively, initial brake pressure p3 is determined based on the pre-braking pressure p1 and the in-braking pressure p2, and final brake pressure p4 is determined based on the initial brake pressure p3. According to the invention, the brake pressure can be accurately determined.

A vehicle travel control device includes a plurality of wheel speed detection devices and a control unit. A plurality of wheel speed detection devices detects the wheel speed of each of the plurality of wheels. The control unit performs vehicle travel control (anti-skid control) based on the wheel speed detected by the wheel speed detection device. The control unit determines whether the wheel speed of the first wheel is abnormal based on the relationship between the wheel speed of the first wheel with the highest wheel speed and the wheel speed of the second wheel with the second highest wheel speed. Abnormality determination is performed to determine whether there is. When the vehicle is braking, the control unit does not make an abnormality determination when the wheel speed increase rate of the first wheel is less than the increase rate reference value.

When it is determined that there is a possibility that an object collides with the vehicle from behind while the vehicle is stopped, collision-corresponding braking control is performed to apply a braking force necessary for suppressing the forward movement of the vehicle due to the collision of the object to the vehicle. During the collision response braking control, it is determined whether or not a backward acceleration caused in the vehicle by the collision of the object has occurred, and in the collision response braking control, when the depression operation of the accelerator pedal is performed while the backward acceleration is occurring, the collision response braking control is continued and the depression operation of the accelerator pedal is not performed.

A method for a brake control of a vehicle is provided. This method includes: obtaining a collision type of a current vehicle after the current vehicle is collided; obtaining driving information of the current vehicle according to the collision type; determining whether the current vehicle is in a safe state according to the driving information; obtaining driving parameter information of the current vehicle, and determining a consciousness state of a driver according to the driving parameter information when the current vehicle is determined as being in the safe state; and controlling the current vehicle to perform a brake operation when the consciousness state is determined as the non-rational driving state. According to this method, a problem of disabling of the driver's beneficial subjective risk-avoidance operations can be avoided, the secondary collision can be effectively avoided, and the damage to the vehicle due to the collision is alleviated.

Methods and systems for estimating autonomous brake wear in a vehicle. A brake table includes a correspondence between a desired brake request and an applied brake force. Vehicle deceleration data is generated during several braking events of the vehicle. The vehicle deceleration data includes (i) desired brake requests issued during the braking events, and (ii) vehicle speeds during the brake request. A learning model is executed on the deceleration data. The learning model is configured to estimate a brake wear based on changes in differences between (a) the desired brake requests issued during the braking events and (b) the vehicle speeds during the brake requests. Based on the estimated brake wear, the brake table is modified in order to yield a modified brake table. A new desired brake request is generated using the modified brake table.

The present disclosure relates to an electrified vehicle capable of handling a situation where there may be an insufficient brake force during long-time braking by applying regenerative braking and to a braking compensation control method of the electric vehicle. The braking compensation control method includes determining whether a preset compensation control entry condition may be satisfied, determining a compensation brake torque for assisting in following a speed of a leading vehicle traveling ahead, and outputting the compensation brake torque through a motor when the compensation control entry condition may be satisfied.