A brake system for a motor vehicle, particularly a commercial vehicle, includes at least one electronic control unit, at least one parking brake device, and at least one wheel-blocking detection device. The wheel-blocking detection device is configured to: detect at least one blocking condition of one or more wheels of the motor vehicle, generate at least one blocking condition signal in response to the detected blocking condition, and transmit the blocking condition signal to the electronic control unit. The electronic control unit is configured to control the parking brake device such that, in a moving condition of the motor vehicle, at least one gradual actuation of the parking brake device is reduced or stopped if the blocking condition signal is generated.

A control system includes one or more processing circuits comprising one or more memory devices coupled to one or more processors. The one or more memory devices are configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to acquire speed data regarding current speeds of tractive elements of the vehicle from tractive element speed sensors of the vehicle, determine speed references for the tractive elements to perform autonomous driving operations where the speed references indicate speeds at which each of the tractive elements should rotate to accommodate the autonomous driving operations, and control at least one of a driveline or a brake system of the vehicle to selectively alter the current speeds of the tractive elements of the vehicle based on the current speeds and the speed references to accommodate the autonomous driving operations.

A control system includes one or more processing circuits comprising one or more memory devices coupled to one or more processors. The one or more memory devices are configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to acquire speed data regarding current speeds of tractive elements of the vehicle from tractive element speed sensors of the vehicle, determine speed references for the tractive elements to perform autonomous driving operations where the speed references indicate speeds at which each of the tractive elements should rotate to accommodate the autonomous driving operations, and control at least one of a driveline or a brake system of the vehicle to selectively alter the current speeds of the tractive elements of the vehicle based on the current speeds and the speed references to accommodate the autonomous driving operations.

A brake system includes a first and a second hydraulic brake assembly, a first and a second switch and a first electronic brake assembly. The first hydraulic brake assembly includes a first brake caliper and a first brake lever connected to each other. The second hydraulic brake assembly includes a second brake caliper and a second brake lever connected to each other. The first switch is activated by the first brake lever when the first brake lever is operated. The second switch is activated by the second brake lever when the second brake lever is operated. The first electronic brake assembly is connected to the second hydraulic brake assembly. The first electronic brake assembly controls an oil pressure applied to the second brake caliper according to whether the first switch and the second switch are activated.

An electric brake apparatus of the present invention relates to an electronic brake apparatus that includes a pump unit driven based on driving of a motor and a plurality of wheel cylinders each of which receives a fluid pressure generated by the pump unit. The electric brake apparatus includes: a hydraulic circuit disposed between the pump unit and the wheel cylinders; a plurality of wheel valves that regulate a fluid flow between the hydraulic circuit and the wheel cylinders; and an electronic control unit that controls the wheel valves and the motor, wherein the electronic control unit controls the wheel valves and the motor on the basis of an input of a driver's pedaling of a brake pedal and a need for electronic stability control.

An electric brake apparatus of the present invention relates to an electronic brake apparatus that includes a pump unit driven based on driving of a motor and a plurality of wheel cylinders each of which receives a fluid pressure generated by the pump unit. The electric brake apparatus includes: a hydraulic circuit disposed between the pump unit and the wheel cylinders; a plurality of wheel valves that regulate a fluid flow between the hydraulic circuit and the wheel cylinders; and an electronic control unit that controls the wheel valves and the motor, wherein the electronic control unit controls the wheel valves and the motor on the basis of an input of a driver's pedaling of a brake pedal and a need for electronic stability control.

A brake system for hydraulically actuating a pair of front wheel brakes and a pair of rear wheel brakes includes a reservoir and a master cylinder fluidly connected to the reservoir and operable to provide a brake signal. A first power transmission unit is in fluid communication with the reservoir, a selected one of the rear wheel brakes, and a first fluid separator corresponding to a selected one of the front wheel brakes. A first electronic control unit is configured to control the first power transmission unit. A second power transmission unit is in fluid communication with the reservoir, the other one of the front wheel brakes, and a second fluid separator corresponding to an other one of the front wheel brakes. A second electronic control unit is configured to control the second power transmission unit.

A service brake device for vehicles is provided which permits rapid venting of a service brake pressure chamber. The service brake device includes at least one pneumatic service brake device with at least one piston and/or a diaphragm. The piston and/or diaphragm delimits the service brake pressure chamber on one side which can be supplied with compressed air from a brake line for applying the service brake and can be purged of compressed air for releasing the service brake, delimits a spring chamber on the other side which receives a spring that prestresses the piston and/or the diaphragm in the release position of the service brake. The pressure chamber includes a pressure connection communicating with the brake line. A quick air release valve between the brake line and the pressure chamber is arranged to connect the brake line to the pressure chamber when the pressure in the brake chamber is greater than in the pressure chamber, and to connect the pressure chamber to the spring chamber when the pressure in the pressure chamber is greater than the brake line pressure.

A service brake device for vehicles is provided which permits rapid venting of a service brake pressure chamber. The service brake device includes at least one pneumatic service brake device with at least one piston and/or a diaphragm. The piston and/or diaphragm delimits the service brake pressure chamber on one side which can be supplied with compressed air from a brake line for applying the service brake and can be purged of compressed air for releasing the service brake, delimits a spring chamber on the other side which receives a spring that prestresses the piston and/or the diaphragm in the release position of the service brake. The pressure chamber includes a pressure connection communicating with the brake line. A quick air release valve between the brake line and the pressure chamber is arranged to connect the brake line to the pressure chamber when the pressure in the brake chamber is greater than in the pressure chamber, and to connect the pressure chamber to the spring chamber when the pressure in the pressure chamber is greater than the brake line pressure.

A method for braking a vehicle includes at least reducing a hydraulic brake pressure in at least one wheel brake device disposed on a vehicle axle in response to an at least partial failure of a brake boosting of a hydraulic brake with at least one first brake circuit and at least one second brake circuit. The method further includes operating an electric brake motor of an electromechanical braking device to produce a braking force on the at least one wheel brake device.