A control apparatus for an electromechanical-brake-booster of a vehicle, having: an electronic-device to control an electric-motor of the electromechanical-brake-booster so that an output piston, connected indirectly to the electric-motor, of the electromechanical-brake-booster is displaceable out of its initial-position by the controlled electric-motor, such that only after a displacement of the output-piston out of its initial-position by at least a predefined limit displacement travel does a frictional engagement exist between the output-piston and an input-piston that is indirectly connected to the brake-pedal and is displaced by the actuation of the brake-pedal, and such that a speed of the output-piston displaced out of its initial-position by less than the limit displacement travel is at first increased from a reference-speed to a maximum-speed and is then reduced from the maximum-speed to the reference-speed. The invention furthermore relates to a method for operating an electromechanical-brake-booster of a vehicle.

A method for operating a motor vehicle, which includes a drive system, including an electric drive machine, a friction braking system and an actuating element. The actuating element is continuously movable between a first end state and a second end state, a position of the actuating element in the first end state corresponding to a percentage value of 0%, and the position of the actuating element in the second end state corresponding to a percentage value of 100%. An acceleration torque for the motor vehicle is predefined if the positon has a percentage value that is greater than a predefined threshold value, and a deceleration torque for the motor vehicle being predefined if the position has a percentage value that is less than the threshold value. The friction braking system is activated in such a way that the friction braking system generates at least partially the predefined deceleration torque.

An operation stabilization system for a foldable pedal apparatus of a vehicle includes: a first battery and a second battery disposed in the vehicle; a first vehicle controller and a second vehicle controller receiving power from the first battery and the second battery, respectively, and transmitting operation signals, respectively; a foldable pedal controller disposed in the foldable pedal apparatus to generate control signals by receiving the signals from the first vehicle controller and the second vehicle controller; and a first motor and a second motor disposed in the foldable pedal apparatus and connected to the first battery and the second battery to receive the power from the first and second batteries, respectively.

An electric brake booster for an autonomous vehicle is provided. The electric brake booster includes a body part that receives a power cylinder generating braking pressure in an autonomous driving/braking mode and a master cylinder generating braking pressure in a manual driver braking mode. A driving shaft is movable in an axial direction in the power cylinder and coupled to a piston. A first motor is connected to a first side of the driving shaft and provides driving power thereto. A second motor is connected to a second side of the driving shaft and provides driving power thereto in a direction equal to that of the driving power provided from the first motor. A controller determines whether the first or second motor normally operates and simultaneously or separately operates the first and second motors based on a magnitude of the pressure in the power cylinder or whether emergency braking occurs.

A control system is used to monitor the brake performance of a machine by detecting a brake engagement for decelerating the machine. If a wheel lock of at least one wheel of the machine is detected during the brake engagement and resulting from the brake engagement whilst the machine is moving, the data collected by the control system for brake engagement is rejected or the generation of brake performance data associated with the brake engagement is prevented. The machine may be an autonomous machine and the brake engagement may be routinely scheduled to provide for brake system monitoring while the machine is in operation.

A control unit determines a final target wheel cylinder hydraulic pressure of a wheel cylinder based on a stroke-target wheel cylinder hydraulic pressure if an acquired simulator stroke position is smaller than a stroke limit, and determines the final target wheel cylinder hydraulic pressure of the wheel cylinder based on the stroke-target wheel cylinder hydraulic pressure and a master cylinder hydraulic pressure-target wheel cylinder hydraulic pressure if the acquired simulator stroke position is equal to or greater than the stroke limit.

When having determined that an operation of a brake operator is initiated at a first timing and the operation amount continues to increase until a second specific timing arrives to become constant at a second timing, vehicle control means which a vehicle control apparatus comprises executes braking force control in such a manner that a time-differential value of controlled braking force during a first period from the second timing to a first terminal timing matches with a time-differential value of controlled braking force at the second specific timing as well as executes driving force control in such a manner that a time-differential value of the controlled driving force during the first period becomes a value less than or equal to a sum of a time-differential value of the controlled driving force at the second specific timing and a time-differential value of operation braking force at the second specific timing.

A vehicle pedal sensor assembly for use in a vehicle brake pedal including a base and a pedal arm pivotally mounted to the pedal base. A sensor housing includes a non-contacting pedal position sensor and a contacting pedal force sensor. The sensor housing is mounted to the base of the vehicle brake pedal. A magnet is mounted to the pedal arm. The pedal position sensor senses a change in the magnitude and/or direction of the magnetic field generated by the magnet in response to a change in the position of the pedal arm for determining the position of the pedal arm. A pedal force application member exerts a force against the pedal force sensor in response to the change in the position of the pedal arm for determining the position of the pedal arm. The force sensor may be a piezoelectric element, a load cell, or a strain gauge.

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 method for operating a brake of a motor vehicle with at least one electronic brake signal generator and with at least one brake control device for actuating the brake based on a brake signal of the brake signal generator includes transmitting the brake signal to the brake control device. The method additionally includes transmitting an actuation of the brake signal generator as a brake signal to the brake control device in addition to a brake pressure value.