Systems and methods for providing vehicle condition indicators are provided. The method for controlling the vehicle includes receiving sensor information from a plurality of sensors associated with the vehicle. The sensor information includes throttle values and lateral acceleration values. The method also includes analyzing the throttle values for a plurality of points in time to determine whether to activate an aggressive throttle flag. The method further includes analyzing the lateral acceleration values for the plurality of points in time to determine whether to activate an aggressive lateral acceleration flag. In addition, the method includes activating a fluid consumption detection enable flag when the aggressive throttle flag and the aggressive lateral acceleration flag are both active.

A hydraulic motor vehicle brake system comprises a vehicle dynamic control system which comprises a first brake circuit which acts on at least one first wheel brake, and a second brake circuit which acts on at least one second wheel brake, the first brake circuit comprising a first hydraulic pressure generator and the second brake circuit comprising a second hydraulic pressure generator, which can be actuated electrically for control interventions. Furthermore, the hydraulic motor vehicle brake system comprises an electrically actuable third hydraulic pressure generator, and a controller which is configured to detect failure of at least one of the two brake circuits and a requirement of a control intervention on the at least one brake circuit, to actuate at least the third hydraulic pressure generator for assisting the control intervention.

Provided herein is an actuation unit for a braking system. The actuation unit for a braking system includes a piston directly or indirectly connected to a brake pedal, an electronic control unit, a hydraulic pressure unit, an electronic memory unit mechanically connected to the hydraulic pressure unit, and a position sensor configured to detect movement of the piston connected to the brake pedal, wherein a signal of the position sensor is corrected, and data for correcting the signal is stored in the electronic memory unit.

A pedal-travel simulator of a hydraulic power vehicle brake system is connected to a brake-fluid reservoir by way of a groove between two piston seals of a power brake-pressure generator. Any air bubbles in the brake fluid get out of the pedal-travel simulator into the brake-fluid reservoir, and the piston seals are lubricated with the brake fluid.

A brake apparatus, for electrically driven motor vehicles, includes a traction motor at an axle of a vehicle, which traction motor is used both as drive motor and as brake system with recuperation of brake energy, a first piston-cylinder unit, which is actuatable by means of an actuating device, in particular brake pedal, a second piston-cylinder unit, which is actuatable by means of an electromotive drive and a non-hydraulic gearing apparatus, in particular spindle drive. The piston-cylinder units are connected via hydraulic connecting lines to wheel brakes of the motor vehicle. A pressure chamber of the first piston-cylinder unit is connected to two wheel brakes of a vehicle axle, and a pressure chamber of the second piston-cylinder unit is connected to a vehicle axle for active brake force feedback control and recuperation control in interaction with the traction motor.

A brake controller determines if an amount of regenerative braking needed to achieve a requested deceleration will exceed a driveline capability of a tractor. If it will, the brake controller redistributes some of the requested deceleration to a braking system of a trailer. That way, the requested deceleration can be achieved by the combination of regenerative braking of the tractor and the braking system of the trailer. Other braking mechanism(s) of the tractor can also be used, if needed.

A brake apparatus, for electrically driven motor vehicles, includes a traction motor at an axle of a vehicle, which traction motor is used both as drive motor and as brake system with recuperation of brake energy, a first piston-cylinder unit, which is actuatable by means of an actuating device, in particular brake pedal, a second piston-cylinder unit, which is actuatable by means of an electromotive drive and a non-hydraulic gearing apparatus, in particular spindle drive. The piston-cylinder units are connected via hydraulic connecting lines to wheel brakes of the motor vehicle. A pressure chamber of the first piston-cylinder unit is connected to two wheel brakes of a vehicle axle, and a pressure chamber of the second piston-cylinder unit is connected to a vehicle axle for active brake force feedback control and recuperation control in interaction with the traction motor.

A motor vehicle brake system includes at least four hydraulically actuatable wheel brakes, a main pressure medium reservoir, at atmospheric pressure, a first electrohydraulic brake control device, which, for each of the four wheel brakes, includes a wheel-specific outlet, and a second electrohydraulic brake control device, which, for each of the four wheel brakes, includes a wheel-specific inlet, connected to the wheel-specific outlet of the first brake control device, a wheel-specific wheel outlet, connected to the wheel brake, and a hydraulic wheel connecting line, connecting the inlet to the wheel outlet. The second brake control device includes a first pump with a first pressure side and first suction side. The first pressure side connected to a first and second wheel connecting line, and a second pump with a second pressure side and second suction side. The second pressure side connected to the third and the fourth wheel connecting line.

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 diagnostic method, in particular to determine the leak tightness of at least one seal and/or one valve, for at least one component of a vehicle, wherein a piston cylinder unit, whose piston is driven by an electromotive drive, forms a pressure supply unit, wherein a control unit identifies the piston position and/or piston movement of the piston by means of at least one sensor and the pressure generated by the pressure supply unit or the motor current flowing through the drive by means of at least one sensor. During the diagnostic method, the control unit may be used to measure quantities relating to piston movement/position, pressure, and/or pressure variation.