Hybrid or fully electric vehicle comprising: a conventional braking system based on friction bodies to brake the motor vehicle by interaction of the friction bodies in response to the operation of a brake pedal or any other equivalent control member, a reversible electric machine operatively coupled to the wheels of the vehicle and electronically controllable to operate selectively as an electric engine to generate a mechanical power to propel to the vehicle and as an electric generator to convert the kinetic energy of the motor vehicle into electrical energy, and an automotive electronic control system comprising a sensory system to measure automotive quantities, and an electronic control unit to control operation of the conventional braking system and of the electric machine in response to the operation of the brake pedal or any other operationally equivalent control member. The electronic control unit is further configured to control operation of: the electric machine to selectively perform one or more functions including regenerative braking, in which the electric machine is operated as an electric generator to recover the kinetic energy of the motor vehicle during braking and convert it into electrical energy, and the conventional braking system to clean the friction bodies of the conventional braking system based on the number of brakings performed by the conventional braking system and counted starting from the start-up of the motor vehicle.

The invention relates to a method for carrying out a cleaning operation for at least one braking device of a braking system in a motor vehicle, said method having the following steps: setting a braking pressure by components of the braking device in accordance with a predefined braking pressure curve, wherein the braking pressure curve, during the cleaning operation, specifies braking pressures that vary over time for the braking device, correcting a setpoint motor torque that is to be provided by a drive motor of the motor vehicle and that is dependent on a braking effect brought about by the set braking pressure, the predefined braking pressure curve being selected such that a longitudinal deceleration of the motor vehicle, which is brought about by the predefined braking pressure curve, can be compensated for by a corresponding additional motor torque.

A method for determining a state of a brake lining on a wheel brake of a brake system of a motor vehicle is disclosed. The wheel brake has an electromechanical brake actuator which is designed to build up a force, such as a braking force, acting on a brake disc of the brake system by pressing the brake lining against the brake disc, and which is assigned to a first axle of the motor vehicle. The method comprises the steps of: detecting a first wheel rotation rate and/or first wheel speed of the first motor-vehicle axle assigned to the electromechanical brake actuator; detecting a second wheel rotation rate and/or first wheel speed of the second motor-vehicle axle; and determining the state of the brake lining on the basis of the first and second wheel rotation rate and/or wheel speed. A method for operating a brake system of a motor vehicle, a computer program product, a control unit and a vehicle brake system are also disclosed.

A method for performing brake disc cleaning of an at least partially electrically driven vehicle including a brake system with at least one friction brake, the surface of which can be brought into contact with a corresponding brake disc, the method includes: determining an upcoming brake event by using at least vehicle-ahead information, predicting a needed deceleration level of an ego-vehicle by using the vehicle-ahead information, and carrying out a brake disc cleaning of the friction brake only in case the needed deceleration level of the ego-vehicle in the upcoming brake event is predicted as being above a predefined value.

A method for suppressing braking noise in a vehicle by a central server, methods for suppressing braking noise in a vehicle to be carried out in a vehicle, and an associated central server, an associated vehicle control module and an associated data storage medium are disclosed. The data processing is divided between the vehicle and the central server.

Technologies and techniques for operating a brake system of a motor vehicle, including a friction braking device and a regenerative braking device, in which a need for cleaning of respective wheel brakes of the friction braking device of the motor vehicle is determined. A desired deceleration of the motor vehicle is determined based on a position of a brake pedal that is mechanically decoupled from the friction braking device. A braking force that is required for the desired deceleration of the motor vehicle is determined, and a first, predefined portion of this braking force being allocated to the regenerative braking device and the remainder of the required braking force being allocated among the wheel brakes of the friction braking device. The braking force to be provided may be distributed among the wheel brakes as a function of the determined need for cleaning of the respective wheel brakes.

A brake system for controlling the brake performance of a vehicle includes a brake, a control unit connected to one or more external condition sensors, and one or more brake performance sensors. The external condition sensors obtain parameters regarding conditions surrounding the vehicle, which are monitored by a driver assistance unit to estimate a probability value that the brakes should be applied to avoid a collision. The brake performance sensors obtain parameters regarding conditions of the brake. The control unit receives the obtained parameters from the external condition sensors and the estimated probability value and determines a surrounding threat level of the vehicle. The control unit receives the obtained parameters from the brake performance sensors and determines a brake performance level, and heats the at least one brake if the brake performance level is below a first level and the surrounding threat level is above a second level.

A vehicle braking system includes a controller that receives signals from sensors associated with vehicle disc brakes, which allow detection of a parameter indicative of a degree of noise generated from each disc brake. When noise generation is detected, the controller activates a noise attenuation function of a first type if the vehicle is braking, and of a second type if the vehicle is not braking. The first type involves reducing actuating pressure of a fluid actuator associated with the disc brake for which noise generation is detected. The second type involves temporarily activating, while the vehicle is running and not braking, the fluid actuator associated with the disc brake which is generating noise. The controller also receives signals indicative of vehicle operating parameters which allow conditions to be defined in which priority is given to vehicle safety, and in which the noise attenuation function is excluded.

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.

A brake system for controlling the brake performance of a vehicle includes a brake, a control unit connected to one or more external condition sensors, and one or more brake performance sensors. The external condition sensors obtain parameters regarding conditions surrounding the vehicle, which are monitored by a driver assistance unit to estimate a probability value that the brakes should be applied to avoid a collision. The brake performance sensors obtain parameters regarding conditions of the brake. The control unit receives the obtained parameters from the external condition sensors and the estimated probability value and determines a surrounding threat level of the vehicle. The control unit receives the obtained parameters from the brake performance sensors and determines a brake performance level, and heats the at least one brake if the brake performance level is below a first level and the surrounding threat level is above a second level.