A vehicle includes a plurality of brake assemblies configured to control braking of a respective wheel of the vehicle. The brake assemblies includes a first brake assembly integrated with a smart actuator unit including a first actuator controller and a first electro-mechanical actuator that is configured to adjust a brake force applied to a first wheel coupled to the first brake assembly. A second brake assembly excludes an actuator controller and has installed therein a second electro-mechanical actuator that is configured to adjust a brake force applied to a second wheel coupled to the second brake assembly. At least one electronic actuator driver unit is remotely located from the first and second brake assemblies, and is configured to output a high-power signal that drives the first and second electro-mechanical actuators in response to receiving a digital command signal from the first actuator controller.

A pedal emulator (20, 100) is provided. The pedal emulator includes an emulator piston (28, 102) coupled to a damper (46, D1) that is contained within a housing (22, 104). The damper is surrounded by first (34, S1) and second (38, S2) springs that are carried by a lower spring seat (114), the lower spring seat being upwardly biased by a third spring (S3), for example a wave spring. The first and second springs and the third spring cooperate to provide a counter-force that is tailored to the desired feel of the pedal. First and second sensors measure travel (72,74) and force in response to downward compression of the emulator piston, and the damper provides hysteresis upon return travel of the emulator piston. A method comprising: providing a brake pedal emulator (100) including an emulator piston (102), the emulator piston (102) being operatively coupled to a brake pedal, wherein the brake pedal emulator (100) is adapted to provide a first force response during a first portion of travel of the emulator piston (102) and a second force response during a second portion of travel of the emulator piston (102); detecting a sequence of actuations of the brake pedal using the brake pedal emulator (100) for conversion into a selected driver input command; and providing vibratory feedback to the brake pedal using a haptic actuator, the vibratory feedback being in response to the selection of a driver input command.

A method for controlling the tightening torque of an electromechanical brake for a motor vehicle, the brake including an electric motor provided with a rotary shaft intended to drive mechanical brake-clamping mechanisms. The method includes steps of acquiring data from a wheel speed sensor that takes a characteristic measurement of the speed of at least one of the wheels of the vehicle, determining, according to the data from the wheel speed sensor, a deceleration indicator characteristic of the acceleration of the vehicle, regulating the tightening torque according to the deceleration indicator.

A vehicle brake system includes a hydraulic service brake system having a service brake circuit and a trailer brake control system. The trailer brake control system includes a trailer brake valve with a service brake demand input port and a trailer brake demand output port connected to a trailer brake control coupling. The output at the trailer brake demand output port is dependent on the pressure applied at the service brake demand input port. An electronic trailer brake control system has a solenoid control valve to connect the service brake demand input port to a source of pressurized hydraulic fluid to trigger an output at the trailer brake demand output port. An ECU is configured to actuate the control valve to apply the trailer brakes if it determines that the vehicle is at risk of jack-knifing. The system may also include a shuttle valve.

A control device is applied to a friction brake device of a vehicle. The friction brake device produces a friction brake force in the vehicle by starting driving of an electric motor. The control device includes a motor control unit configured to control the electric motor. The control device includes an acquisition unit configured to acquire an index value corresponding to a magnitude of a target value of the friction brake force. A value for determining a magnitude of the index value is set as a limit determination value. The motor control unit limits an increase speed of the number of rotations of the electric motor if the index value is equal to or less than the limit determination value, and releases the limit if the index value exceeds the limit determination value.

A vehicle body speed estimation device and a vehicle body speed estimation method are provided for estimating a vehicle body speed of a four-wheel drive vehicle from a wheel speed of each wheel of the four-wheel drive vehicle. In the vehicle body speed estimation device and a vehicle body speed estimation method, a controller determines whether a deviation of at least two of the wheel speeds among the wheel speeds is within a first prescribed range. The controller switches a method for selecting the wheel speed used for estimating the vehicle body speed between a first method and a second method when a sign of a drive torque that is applied to each of the wheels is reversed and the deviation of at least two of the wheel speeds among the wheel speeds is within the first prescribed range.

A brake control system is for a vehicle containing an internal controller for outputting an internal control variable for at least one brake actuator. An interface receives an external control variable for the at least one brake actuator from an external controller. A decision circuit has at least two inputs for receiving the internal control variable and the external control variable and an output for outputting a control signal for the at least one brake actuator. The control signal depends on the received internal control variable and/or the received external control variable.

Described herein are methods and systems for operating a braking system of a commercial electric vehicle. In various embodiments, the braking system may include a plurality of electric brake control modules. The electric brake control modules may be configured to operate the brakes on different axles of the vehicle. One or more of the electric brake control modules may be configured to detect a fault with another electric brake control module and operate the brakes of the vehicle accordingly.

An assembly for an electrohydraulic brake system of a vehicle, including at least one brake control module which has an electronically actuated pressure supply device which, in the installed state of the assembly, is fluidically coupled to at least one wheel brake of the vehicle. The brake control module is connected to a holding device for arrangement on a vehicle body. The brake control module includes a mechanical stop device which, when the assembly is installed, is spaced apart at a distance from an adjacent vehicle component and, by interaction with the vehicle component, emits a warning signal in the event of a loss of support of the brake control module.

A method for controlling deceleration of a vehicle is provided. The vehicle has a braking system having a braking actuation lever, a braking actuator, and at least one braking device. The method involves measuring a current lever position of the braking actuation lever and a current lever speed of the braking actuation lever, dynamically mapping the current lever position and the current lever speed, processing a deceleration curve as a function of the dynamic mapping, and decelerating the vehicle according to the deceleration curve for each current lever position measured in a lever stroke.