An actuator module for a vehicle includes an actuator control device configured to output an actuator activation signal and at least one actuator configured to receive the actuator activation signal and perform, based on the actuator activation signal, an actuator operation. The actuator control device includes a driving dynamics sensor device configured to measure at least one driving dynamics measurement variable of the vehicle and to generate a driving dynamics measurement signal. The actuator control device also includes a signal compensation device configured to receive the driving dynamics measurement signal and an actuator information signal indicating the actuator operation of the actuator control device, to filter the driving dynamics measurement signal in a manner dependent on the actuator information signal, and to output a compensated driving dynamics measurement signal. The actuator, actuator control device, driving dynamics sensor device, and signal compensation device are provided in one structural unit.

A step determination device includes an operation amount sensor that detects an operation amount of a braking operation member, and a controller that determines a step by using the wheel speed and the operation amount. In the step determination device, the controller calculates an actual variable amount by using the wheel speed, calculates an estimated variable amount corresponding to the actual variable amount by using the operation amount, and executes the determination of the step by using the actual variable amount and the estimated variable amount. For example, the controller determines the presence of the step when the deviation between the actual variable amount and the estimated variable amount is not less than a predetermined value, and determines the absence of the step when the deviation is less than the predetermined value.

A step determination device includes an operation amount sensor that detects an operation amount of a braking operation member, and a controller that determines a step by using the wheel speed and the operation amount. In the step determination device, the controller calculates an actual variable amount by using the wheel speed, calculates an estimated variable amount corresponding to the actual variable amount by using the operation amount, and executes the determination of the step by using the actual variable amount and the estimated variable amount. For example, the controller determines the presence of the step when the deviation between the actual variable amount and the estimated variable amount is not less than a predetermined value, and determines the absence of the step when the deviation is less than the predetermined value.

An actuator module for a vehicle includes an actuator control device configured to output an actuator activation signal and at least one actuator configured to receive the actuator activation signal and perform, based on the actuator activation signal, an actuator operation. The actuator control device includes a driving dynamics sensor device configured to measure at least one driving dynamics measurement variable of the vehicle and to generate a driving dynamics measurement signal. The actuator control device also includes a signal compensation device configured to receive the driving dynamics measurement signal and an actuator information signal indicating the actuator operation of the actuator control device, to filter the driving dynamics measurement signal in a manner dependent on the actuator information signal, and to output a compensated driving dynamics measurement signal. The actuator, actuator control device, driving dynamics sensor device, and signal compensation device are provided in one structural unit.

An actuator module for a vehicle includes an actuator control device configured to output an actuator activation signal and at least one actuator configured to receive the actuator activation signal and perform, based on the actuator activation signal, an actuator operation. The actuator control device includes a driving dynamics sensor device configured to measure at least one driving dynamics measurement variable of the vehicle and to generate a driving dynamics measurement signal. The actuator control device also includes a signal compensation device configured to receive the driving dynamics measurement signal and an actuator information signal indicating the actuator operation of the actuator control device, to filter the driving dynamics measurement signal in a manner dependent on the actuator information signal, and to output a compensated driving dynamics measurement signal. The actuator, actuator control device, driving dynamics sensor device, and signal compensation device are provided in one structural unit.

The present disclosure provides an electro-mechanical brake including a piston configured to push a brake pad towards a wheel disc by driving a motor, the electro-mechanical brake comprising: a position detection unit that detects the position of the piston; a current detection unit that detects the value of current applied to the motor; and a contact point calculation unit that calculates a contact point, which is where the piston is located when the brake pad starts to come into contact with the wheel disc, based on the position of the piston and the value of current applied to the motor, wherein the contact point calculation unit calculates the contact point based on the position of the piston detected by the position detection unit with respect to a plurality of specified current values and the position of the piston measured with respect to the plurality of specified current values.

The present disclosure provides an electro-mechanical brake including a piston configured to push a brake pad towards a wheel disc by driving a motor, the electro-mechanical brake comprising: a position detection unit that detects the position of the piston; a current detection unit that detects the value of current applied to the motor; and a contact point calculation unit that calculates a contact point, which is where the piston is located when the brake pad starts to come into contact with the wheel disc, based on the position of the piston and the value of current applied to the motor, wherein the contact point calculation unit calculates the contact point based on the position of the piston detected by the position detection unit with respect to a plurality of specified current values and the position of the piston measured with respect to the plurality of specified current values.

A vehicle braking system includes: a master cylinder; a slave cylinder communicated with the master cylinder; a vehicle behavior stabilizer communicated with the slave cylinder; first and second master cut valves, each being a normally closed valve for opening and closing a fluid flow path between the master cylinder and the slave cylinder, for making hydraulic pressures in the slave cylinder and the vehicle behavior stabilizer work in a valve closing direction; a pressure sensor for detecting the hydraulic pressure in the vehicle behavior stabilizer; and a piston controller for advancing first and second slave pistons in the slave cylinder when the hydraulic pressure on the vehicle behavior stabilizer side, detected by the pressure sensor, exceeds a predetermined value, and returning the pistons at a predetermined timing.

A method for operating a vehicle, the vehicle including at least one friction brake unit, including a brake body and at least one brake element, the brake body being rotatably fixedly connected to a wheel of the vehicle and the brake element being situated on the chassis side and being displaceable in the direction of the brake body. The brake element is pressed against the brake body for generating a friction braking action, and an actual vehicle parameter resulting from the friction brake action being monitored for vibrations with the aid of at least one sensor unit. When detecting a vibration, the frequency of the vibrations is compared with the rotational speed of the wheel, and at least one safety measure is carried out in a third step if the comparison indicates that the frequency is equal to or greater than the rotational speed of the wheel.

A braking system includes brake rotors, wheel speed sensors, and an electronic control unit. The brake rotors are couplable to wheels. The brake rotors have rotor thickness variations that cause a vibration while braking. The wheel speed sensors are couplable to the wheels and configured to generate rotation signals for the wheels. The electronic control unit coupled to the wheel speed sensors and configured to generate an absolute phase offset signal that conveys an absolute phase offset angle between the rotor thickness variations in response to the rotation signals, generate a brake torque adjustment signal in response to the absolute phase offset signal and the rotation signals, and adjust a first braking control signal for a first brake rotor relative to a second braking control signal for a second brake rotor based on the brake torque adjustment signal to minimize an amplitude of the vibration during a braking event.