A brake system for a vehicle having at least two axles. The brake system includes a hydraulic deceleration unit with a motorized brake pressure buildup device, a first and second wheel brake cylinder which can be mounted on a first and second wheel of a first axle of the vehicle. The first wheel brake cylinder is hydraulically connected to the motorized brake pressure buildup device via a first pressure control valve, and the second wheel brake cylinder is hydraulically connected to the motorized brake pressure buildup device via a second pressure control valve. The brake system includes an electromechanical deceleration unit having a first electromechanical wheel brake cylinder which can be mounted on a first wheel of a second axle of the vehicle and a second electromechanical wheel brake cylinder which can be mounted on a second wheel of the second axle.

A method for identifying a fault in a brake assembly of a motor vehicle, including: ascertaining a first estimated value of a brake temperature based on an applied brake pressure; registering a series of measured temperature values by a temperature sensor spaced from the brake assembly; determining a second estimated value of the brake temperature based on the series of measured temperature values; comparing the first estimated value and the second estimated value; and deciding, based on the comparing of the first and second estimated values, whether there is a fault. Also described is a related motor vehicle braking system.

An electro-mechanical brake includes: first to third pedal sensors detecting a stroke of a brake pedal to generate first to third braking signals, respectively, the third pedal sensor including an auxiliary control unit; wheel control units attached to wheels, respectively; a first central control unit configured to receive the first braking signal to calculate a first desired braking intensity, and to transmit a first desired braking intensity signal signal related to the first desired braking intensity to the wheel control units; a second central control unit configured to receive the second braking signal to calculate a second desired braking intensity, and to transmit the second desired braking intensity signal to the wheel control units; and a first Controller Area Network (CAN) communications unit configured to transmit a signal between the auxiliary control unit, the first central control unit, the second central control unit, and the wheel control units.

Braking systems and methods for an autonomous vehicle are provided. Braking devices are associated with respective wheels of the autonomous vehicle. A hydraulic circuit is connected between a primary braking module (PBM) and the braking devices and connected between a secondary braking module (SBM) and the braking devices. One of a PBM electronic control unit and a SBM electronic control unit is configured to: in response to detecting a communications failure of the other braking module, apply a predetermined hydraulic pressure operation in the hydraulic circuit. The other of the PBM electronic control unit and the SBM electronic control unit is configured to identify, based on output from the at least one sensor, the predetermined hydraulic pressure operation being applied by the one of the PBM electronic control unit and the SBM electronic control unit, and select and execute a braking profile based thereon.

An electrically controlled differential gear is disposed between a right front wheel and a left front wheel of a vehicle. The electrically controlled differential gear includes a clutch mechanism that limits a differential operation of the electrically controlled differential gear. A second ECU (control portion) obtains information as to failure associated with actuation of a right front electric brake mechanism. The second ECU obtains a physical amount relating to a required braking force which is applied to the left front wheel and the right front wheel. The second ECU outputs a differential limiting control command for limiting the differential operation of the electrically controlled differential gear to the clutch mechanism (or more specifically, a differential ECU that controls the clutch mechanism) based on the information as to the failure and the physical amount relating to the required braking force.

The disclosed invention makes use of a wheel speed signal to detect a wheel anomaly such as a loose wheel or a wheel with zero pressure. The wheel speed signal is used as a basis to determine a first and a second detection signal. A further basis for determining the first and second detection signals are a first and second reference signal, respectively. The anomaly of e.g. a loose wheel is detected, according to the teaching of the invention if at least one of the detection signals exceeds a threshold. In particular, the disclosure relates to methods, systems and computer program products to achieve the mentioned objective.

A method for managing a control software of a braking system of a vehicle, the method including downloading, a vehicle-adapted control software from a server via a wireless interface of the vehicle, and flashing a control unit of the braking system with the vehicle-adapted control software.

A method for monitoring an electric motor of a hydraulic brake system for a motor vehicle, wherein a first torque and a second torque are calculated and compared with one another. A fault can be detected on the basis of the comparison. The invention also relates to an associated electronic control module, to an associated hydraulic brake system and to an associated non-volatile computer-readable storage medium.

A control valve (12) for applying a spring-loaded brake pressure (p3b) to spring-loaded parts of a rear-axle wheel brake is provided. The control valve (12) is activatable pneumatically via a second control input (12b) with a parking-brake control pressure (p5). The parking-brake control pressure (p5) can act in such a manner on a control mechanism (14b, 15b, 17c, 22, 23, 24) arranged in a valve housing (12f) of the control valve (12) that a spring-loaded brake pressure (p3b) arises at a control output (12c) of the control valve (12) as a function of the parking-brake control pressure (p5) for bringing about a parking-brake braking specification with the spring-loaded parts of the rear-axle wheel brakes. The control valve (12) has a first control connection (12a) connectable to an adjustable first control chamber (14a), which is operatively connected to the control mechanism (14b, 15b, 17c, 22, 23, 24).

A method for testing a pressure-medium-operated electronic brake system of a vehicle having a valve and sensor device including a control pressure inlet, a control pressure outlet, a plurality of valves selected from electrically activated inlet valves, outlet valves, redundancy valves, and pressure valves, an actual pressure sensor for measuring an actual control pressure, a setpoint pressure sensor for measuring a setpoint control pressure, and an electronic control unit, which has a signal-conducting connection to the electrically activated valves and pressure sensors, for receiving pressure signals and actuating the electrically activated valves, includes testing the setpoint pressure sensor while the control unit is in a passive operating mode, passing the setpoint control pressure directly through to the control pressure outlet, measuring the actual pressure at the control pressure outlet using a sensor, and transmitting the measured value to the control unit for plausibility checking against the setpoint pressure measurement.