A vehicle braking system may include a first EMB assembly associated with a first wheel, a second EMB assembly associated with a second wheel, a third EMB assembly associated with a third wheel, a fourth EMB assembly associated with a fourth wheel, a control module to control application of signaling and power for operation of the first, second, third and fourth EMB assemblies where the power is provided from a first power network and a second power network, a first temporary power supply to backup the first power network, and a second temporary power supply to backup the second power network.

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.

This disclosure provides systems and methods for deceleration control during emergency braking using control algorithm override. An embodiment of the present disclosure provides a computer-implemented method for deceleration by a controlling device of an autonomous driving vehicle (ADV). The method includes engaging a braking system of the ADV to decelerate the ADV using a first deceleration algorithm. When an onset of discrepancy between a velocity of the ADV and a corresponding wheel speed of the ADV is detected, a processing device, based on the discrepancy, overrides an output of the first deceleration algorithm using a second deceleration algorithm that prioritizes in reducing the discrepancy between the velocity of the ADV and the corresponding wheel speed of the ADV over a target rate of deceleration computed by the first deceleration algorithm.

A brake system with control redundancy includes a central controller and four wheel end brake apparatuses. The central controller receives one channel of brake pedal travel signal and one channel of brake pedal force signal. A wheel end controller is configured to receive the other channel of brake pedal travel signal and the other channel of brake pedal force signal. One of the sensors fails, and the other sensor can still detect a motion state of a brake pedal, to improve operational reliability of the brake system with control redundancy. In addition, even when the central controller fails, the four wheel end brake apparatuses can be controlled, based on the other channel of brake pedal travel signal and the other channel of brake pedal force signal, to output brake forces.

A method for emergency engagement of a holding brake of a vehicle having an electropneumatic brake system. The electropneumatic brake system includes a service brake system with a service brake and a holding brake system with the holding brake. The holding brake system has spring brake cylinders. The service brake system includes a service brake control unit. The electropneumatic braking system includes at least one brake circuit for the service brake and the holding brake. The service and holding brakes may be in separate brake circuits. The spring brake cylinders can be vented when a supply pressure in at least one brake circuit for the service brake decreases. The method includes reducing, via the service brake control unit, the supply pressure in at least one brake circuit for the service brake under a program control in defined conditions.

A method for actuating a mechanism in a brake booster unit. The method includes: ascertaining, using a control unit of a vehicle system, whether a driver's braking request has ended or whether there is no driver's braking request; detecting, using the control unit, an operational disruption of the brake booster unit; detecting, using the control unit, an operational disruption of a pressure controller, which is connected to the brake booster unit and configured to generate a braking pressure and/or a resetting pressure at a master brake cylinder unit of the brake booster unit; generating, using the vehicle system, a predetermined minimum pressure in the master brake cylinder unit and thereby resetting the mechanism and, by the mechanism, resetting a master brake cylinder into a neutral position.

A control device for a vehicle configured to travel in a one-pedal mode in which driving and braking are controlled in response to operations on only an accelerator pedal is configured to control a braking force of the vehicle by using deceleration maps in which decelerations in a plurality of traveling directions are set for any points based on traveling history data, and calculate, during traveling in the one-pedal mode, a deceleration level based on deceleration information associated with a current traveling direction and a current position of the vehicle among pieces of deceleration information included in the deceleration maps.

A method for updating a configuration of a braking arrangement in a vehicle is provided. The method comprises obtaining sensor data indicative of a status of the vehicle and/or of the braking arrangement during at least a part of a braking operation performed by the braking arrangement. The method further comprises predicting, based on the obtained sensor data, at least one component that are part of the braking arrangement. The method further comprises in response to detecting that the configuration of the braking arrangement does not comply with the at least one component, updating the configuration to be based on the at least one component.

A rotation sensor for a vehicular pedal includes a sensor housing, a sensor circuit secured to the sensor housing, and a target rotatable with the pedal about an axis. The target has an assembly position proximal to the sensor circuit such that the sensor circuit detects a rotational position of the target and the pedal through a range of positions. A key is selectively engageable with one or both of the target and the sensor housing. The rotation sensor has a first configuration in which the key is retained by the target and disengaged from the sensor housing. The rotation sensor has a second configuration in which the key engages both the target and the sensor housing to impede movement of the target relative to the sensor housing. The rotation sensor has a third configuration in which the key is disengaged from the target and retained by the sensor housing.

A method for operating a power brake system, which includes a braking device to which a primary and a secondary actuation device for generating a hydraulic brake pressure are assigned, which are designed to receive a braking request signal that is representative of a braking request by electronics. The method includes: collecting information on the functionality of the primary actuation device by the secondary actuation device in a first collection mode using electronic communication between the primary and the secondary actuation device and collecting the information on the functionality of the primary actuation device in a second collection mode by ascertaining a hydraulic brake pressure generated by the primary actuation device by the secondary actuation device if no information on the functionality of the primary actuation device can be collected by the secondary actuation device in the first collection mode.