Disclosed is an axle modulator for regulation of the brake cylinder pressure on one or both sides of at least one axle of a vehicle, for example a vehicle with a pneumatic brake system. Revolution rate sensors and brake lining wear sensors can be connected for readout. The axle modulator is provided with separate connections for active and passive revolution rate sensors. Also disclosed is a regulating unit for an axle modulator. Further disclosed is a braking system with at least one brake control unit and with at least one regulating unit and/or an axle modulator.

A method for electronically controlling a brake unit having two brake systems in an automatically controllable vehicle combination includes inputting a request signal for automatic electronic activation of service brakes in a tractor vehicle brake system of a tractor vehicle and/or a trailer brake system of a trailer of the vehicle combination, wherein an automatically requested vehicle setpoint acceleration and/or an automatically requested vehicle setpoint velocity to be implemented by the respective service brakes are transmitted via the request signal. The method further includes monitoring and checking plausibility of the request signal to establish whether the automatically requested vehicle setpoint acceleration and/or the automatically requested vehicle setpoint velocity are or can be implemented completely or faultlessly by the respective service brakes. The method additionally includes outputting a trailer redundancy control signal at the trailer brake system under certain conditions.

Electronic control units, vehicles, and methods for controlling trailer brake output circuits based on vehicle wheel ABS statuses are disclosed. An electronic control unit for controlling a trailer brake output circuit based on vehicle wheel ABS statuses is configured to determine a first vehicle wheel ABS status, determine a second vehicle wheel ABS status, and control the trailer brake output circuit based on the first vehicle wheel ABS status and the second vehicle wheel ABS status. The first vehicle wheel ABS status is indicative of whether braking of a first vehicle wheel is being controlled in accordance with a vehicle ABS mode. The second vehicle wheel ABS status is indicative of whether braking of a second vehicle wheel is being controlled in accordance with the vehicle ABS mode.

A deceleration turning assistance device, includes: braking devices respectively provided at each of a left wheel and a right wheel of a towed vehicle that is configured to be pivotably coupled to a towing vehicle via a coupling portion; and a braking force difference generating portion that, in a case of decelerated turning in a state in which the towed vehicle is coupled to the towing vehicle, is configured to generate a left-right braking force difference between the braking devices in accordance with a hitch angle between the towing vehicle and the towed vehicle so as to decrease the hitch angle.

A brake control unit includes a processor, a first high side driver and a second high side driver. The processor sends signals to the first high side driver and the second high side driver. The first and second high side drivers process the signals independent of each other. The processor diagnoses faults and locations of faults based on feedback from the high side drivers. The first high side driver controls the braking of a first trailer brake. The second high side driver controls the braking of a second trailer brake.

A brake control unit includes a processor, a first high side driver and a second high side driver. The processor sends signals to the first high side driver and the second high side driver. The first and second high side drivers process the signals independent of each other. The processor diagnoses faults and locations of faults based on feedback from the high side drivers. The first high side driver controls the braking of a first trailer brake. The second high side driver controls the braking of a second trailer brake.

A device operatively couples a tractor ABS controller with TABS controllers in units towed by the tractor. A PLC interface circuit of the device communicates messages received from a PLC network of the towed units to a CAN network of the tractor via a CAN interface circuit. The device may also rebroadcast messages received from the PLC network back onto the PLC network, and may also wirelessly broadcast messages received from the PLC network back onto a wireless network. The device receives messages from the towed units at a message rate, determines a quantity of towed units from the message rate, and communicates the determined quantity of towed units on the CAN network of the tractor. The device receives messages indicating towed unit identification (ID) information, determines a quantity of towed units from the towed unit ID information, and communicates the determined quantity of towed units on the CAN network.

A method for operating an electropneumatic parking brake system of a vehicle combination, which includes a tractor vehicle and a trailer vehicle, includes activating, after a parking operation and braking of the vehicle combination, a trailer check function in a standstill state. The trailer check function enables a check as to whether, in the case of a decrease in the braking action of the trailer vehicle, the vehicle combination can be held in a stationary manner solely by way of the braking action of a parking brake of the tractor vehicle. The trailer check function is carried out automatically when a vehicle combination has been braked in a stationary manner independently by way of an automatic parking function.

The invention relates to a method and an arrangement for controlling a vehicle (100) during a downhill start. The vehicle comprises a service brake (131a, 131b; 132a, 132b; 33a, 133b), an engine (119) and a transmission (120) being arranged between the engine and at least one driven axle (123), wherein the service brakes, the engine and the transmission are controlled by an electronic control unit (140). The method involves registering that the vehicle is located on a downhill gradient; registering an action from the driver, indicating a request to start the vehicle; controlling the service brake to maintain the vehicle stationary during a predetermined time after the request before initiating a controlled service brake release; controlling a gradual release of the service brake in response to at least one detected first vehicle operating parameter; and releasing the service brake when detecting that a predetermined threshold for at least one second vehicle operating parameter has been attained.

An operating method for an electrified motor vehicle having an electric drive while being coupled to a towing vehicle by a connecting device in such a manner that the pulling forces and pushing forces between the vehicles are transmitted. The towing vehicle may communicate data to the motor vehicle used to control the motor vehicle to provide a controlled force exerted on the towing vehicle by the motor vehicle during towing. The controlled force exerted on the towing vehicle may vary based on the prevailing force direction between the vehicles, acceleration, and battery state of charge (SOC) of the motor vehicle. The controlled force may include a driving force or a braking force. The braking force may be provided by regenerative braking of the motor vehicle and/or by friction braking of the motor vehicle.