Abstract: A vehicle brake system including a brake pedal and a first actuating module. The first acting module includes a master cylinder, a pedal feel simulator, a primary pedal sensor, a first pressure supplier, a first controller, and a first actuating module port. The system includes a second actuating module having a second pressure supplier, a second controller, and a second actuating module port. The vehicle braking system includes a modulation module having first and second ports coupled, respectively, to the first and second actuating module ports, a secondary pedal sensor, a pump, a third controller, and ports coupled to the wheel cylinders. In a redundant back-up mode of operation, the brake request is configured to be met by operation of the pump of the modulation module according to the secondary pedal sensor and the algorithm of the third controller.

Abstract: A vehicle braking system includes a first wheel cylinder, a second wheel cylinder, a master cylinder including a first master cylinder chamber in fluid communication with the first wheel cylinder via a first circuit and a second master cylinder chamber in fluid communication with the second wheel cylinder via a second circuit, and an electronically controlled pressure generating unit separate from the master cylinder. The vehicle braking system is operable to provide braking in a first configuration in which the electronically controlled pressure generating unit pressurizes fluid, through the master cylinder, in the first circuit, to the first wheel cylinder. In the first configuration, the electronically controlled pressure generating unit pressurizes fluid in the second circuit to the second wheel cylinder, bypassing the master cylinder.

Abstract: A vehicle braking system includes a first wheel cylinder, a second wheel cylinder, a master cylinder including a first master cylinder chamber in fluid communication with the first wheel cylinder via a first circuit and a second master cylinder chamber in fluid communication with the second wheel cylinder via a second circuit, and an electronically controlled pressure generating unit separate from the master cylinder. The vehicle braking system is operable to provide braking in a first configuration in which the electronically controlled pressure generating unit pressurizes fluid, through the master cylinder, in the first circuit, to the first wheel cylinder. In the first configuration, the electronically controlled pressure generating unit pressurizes fluid in the second circuit to the second wheel cylinder, bypassing the master cylinder.

Abstract: A hill-hold control system for a vehicle. The hill-hold control system includes a first wheel brake (120A, 120B), a second wheel brake (120C, 120D), a braking indicator (brake pedal), a drive away indicator (accelerator), and a controller (130). The controller is configured to determine that the vehicle is at standstill, detect from the braking indicator that braking is no longer desired, adjust a braking pressure at the first wheel brake, adjust a braking pressure at the second wheel brake, detect from the drive away indicator an operator's desire to drive away, and when the operator's desire to drive away is detected, removing the braking pressure at the first wheel brake and the braking pressure at the second wheel brake.

Abstract: A hill-hold control system for a vehicle. The hill-hold control system includes a first wheel brake (120A, 120B), a second wheel brake (120C, 120D), a braking indicator (brake pedal), a drive away indicator (accelerator), and a controller (130). The controller is configured to determine that the vehicle is at standstill, detect from the braking indicator that braking is no longer desired, adjust a braking pressure at the first wheel brake, adjust a braking pressure at the second wheel brake, detect from the drive away indicator an operator's desire to drive away, and when the operator's desire to drive away is detected, removing the braking pressure at the first wheel brake and the braking pressure at the second wheel brake.