A vehicle includes a fault-tolerant braking system that controls a brake assembly which is configured to adjust a braking force applied to one or more wheels. The fault-tolerant braking system further includes a brake-by-wire (BBW) system and a vehicle control module (VCM). The BBW system is configured to control the brake assembly in response to a braking request. The VCM is configured to detect a fault of at least one of the brake assembly and the BBW system. In response to detecting the fault, the VCM selectively operates the vehicle between a normal operating mode and at least one degraded driving mode that limits operation of at least one of the vehicle engine and the vehicle transmission compared to the normal operating mode.

A braking controller and method in a towing vehicle towing one or more towed vehicles as a combination vehicle provides brake control of the one or more towed vehicles based on a level of braking force applied to the towing vehicle. A non-enhanced braking mode applies a first level of braking force to the towed vehicles in a predetermined reduced proportion relative to the level of braking force applied to the towing vehicle, and an enhanced braking mode applies a second level of braking force to the towed vehicles greater than the first level of braking force. A controller deceleration command input receives a deceleration command signal which is compared against predetermined threshold deceleration rate value or against a current deceleration value being executed by the combination vehicle and, based on a result of the comparisons, either the enhanced or the non-enhanced braking modes are implemented by the controller.

A braking controller and method in a towing vehicle towing one or more towed vehicles as a combination vehicle provides brake control of the one or more towed vehicles based on a level of braking force applied to the towing vehicle. A non-enhanced braking mode applies a first level of braking force to the towed vehicles in a predetermined reduced proportion relative to the level of braking force applied to the towing vehicle, and an enhanced braking mode applies a second level of braking force to the towed vehicles greater than the first level of braking force. A controller deceleration command input receives a deceleration command signal which is compared against predetermined threshold deceleration rate value or against a current deceleration value being executed by the combination vehicle and, based on a result of the comparisons, either the enhanced or the non-enhanced braking modes are implemented by the controller.

An apparatus for updating a pre-stored setting value for controlling boost power of an electric booster, includes: a control unit including a processor; and a storage medium recording one or more programs configured to be executable by the processor, the one or more programs including instructions; and a measuring unit of measuring braking characteristics including pedal stroke, deceleration, and hydraulic pressure applied from the electric booster to a braking unit during braking through a braking test of a vehicle, wherein the control unit is configured for updating the pre-stored setting value so that the deceleration includes desired target deceleration based on the measured braking characteristics, and wherein the pre-stored setting value may be proportional to the pedal stroke, and may be a value for setting a magnitude of the hydraulic pressure.

A brake device includes: a brake pedal including a pedal and a lever that rotates about a rotation axis when the pedal is operated; a housing that rotatably supports the lever; a reaction force generator that generates a reaction force to the lever in accordance with a stroke amount of the brake pedal by receiving a force from the lever when the brake pedal is operated; a deformation member including a deformation portion that is deformed by a force received from the lever when the brake pedal is operated in a state where the reaction force generated by the reaction force generator is generated; and a stroke sensor that outputs a signal corresponding to the stroke amount and outputs a value indicating that operation of the brake pedal is abnormal and instructing execution of control for stopping a vehicle when the deformation portion is deformed.

Disclosed is an apparatus for moving a brake pedal. The apparatus for moving a brake pedal according to the disclosure includes a push rod connecting the brake pedal and a piston of a master cylinder to displace the piston according to a pedal effort of the brake pedal, actuator generating power, a screw configured to displace the piston by receiving a rotational force from the actuator and performing a translational motion, and an anti-rotation portion preventing rotation of the screw, wherein the push rod passes through the screw and is connected to the piston to generate displacement of the piston independently with respect to the translational motion of the screw, and the screw is connected to the actuator to receive the rotational force, and by converting the rotational force into the translational motion by the anti-rotation portion, generates the translational motion of the piston, the push rod, and the brake pedal connected to the screw.

The present disclosure provides an electric booster comprising: a motor piston configured to be moved by a motor; an operating rod configured to be moved in a direction parallel to a moving direction of the motor piston; a reaction disc configured to be pressed and moved by at least one of the motor piston and the operating rod; a master cylinder configured to generate a hydraulic pressure as the reaction disc moves; and a control unit controlling the operation of the motor, wherein the control unit receives the stroke of the brake pedal, calculates a required hydraulic braking force and a required stepping force based on the pedal stroke, and determines a required displacement of the motor piston for generating the required hydraulic braking force and the required stepping force using a contact area between the operating rod and the reaction disc.

An automatic braking system for a vehicle includes a sensor system configured to detect the previous speed of the vehicle, occupancy of a driver's seat of the vehicle, and an input to at least one of an accelerator pedal of the vehicle and a brake pedal of the vehicle. The automatic braking system also includes a control module communicatively connected to the sensor system and configured to automatically brake the vehicle when the vehicle was previously stopped, the driver's seat is occupied, and there is no input to the accelerator pedal or the brake pedal.

The present disclosure relates to a system and method of detecting a brake fluid leakage for detecting whether a brake fluid of a vehicle is leaking and a position of the leakage. The method of detecting a brake fluid leakage according to an embodiment of the present disclosure includes detecting a level of the brake fluid stored, detecting whether the vehicle is braking, and diagnosing whether the brake fluid is leaking and the position of the leakage when the level of the brake fluid falls below a reference level and a state of the vehicle is detected as a non-braking state.

A vehicle stop holding device for holding a stop of a vehicle includes a ECU for starting execution of a backup control for holding a stop state of the vehicle by a brake holding device when an operation of getting off the driver of the vehicle is detected while the vehicle is stopped by the brake device, and ECU outputs a brake operation request for requesting an operation of the brake device to the driver and releases the brake of the brake device when both a release operation of the seat belt by the driver of the vehicle and an opening operation which is an operation for opening the door are detected during a period from the start of the execution of the backup control until the completion of the completion.