A method of controlling braking of a vehicle is provided. When a disconnector is disconnected and an auxiliary drive wheel is separated from a driving system, vehicle braking is performed with regenerative braking by a primary drive wheel motor during braking. Subsequently, the disconnector is connected based on a vehicle stability state, and then, braking is performed simultaneously on the auxiliary drive wheel and a primary drive wheel.

A braking control method according to friction of road surface includes computing a real-time wheel speed according to a signal received from a wheel speed sensor; storing the real-time wheel speed as a wheel initial velocity when a braking event occurs; determining a relative-peak value according to the real-time wheel speed; estimating a vehicle deceleration according to the relative-peak value and the wheel initial velocity; computing an adjustment parameter according to the vehicle deceleration and a tire slip threshold, wherein the adjustment parameter reflects friction coefficient of road surface; and adjusting time length of an enhancement stage in an enhance-pressure control period of a stepped pressure-increasing phase according to the adjustment parameter; or adjusting time length of a reduction stage in a reduce-pressure control period of a stepped pressure-decreasing phase according to the adjustment parameter.

A brake system for a vehicle comprises a braking control unit comprising a first electronic control unit (ECU), a second ECU, and an actuator in communication with the first ECU and the second ECU. The ECUs each receive identical braking signals. On receiving a braking signal, the first ECU causes an actuator to activate a plunger to apply pressure to brake fluid in a hydraulic braking system, causing friction brakes to decelerate road wheels. The second ECU is configured to determine whether the first ECU is in a failure state. If the first ECU is in a failure state, the second ECU causes the actuator to activate a plunger to apply pressure to brake fluid in a hydraulic braking system, causing friction brakes to decelerate road wheels. The actuator and ECUs are disposed within a single unit.

An embodiment provides an electric brake system including a hydraulic pressure supplier configured to produce hydraulic pressure of oil using rotation force of a motor; a hydraulic circuit configured to convey hydraulic pressure discharged from the hydraulic pressure supplier to a wheel cylinder; a motor position sensor configured to measure a position of the motor; a motor current sensor configured to measure a current of the motor; and a controller configured to determine whether there is a leak in the hydraulic circuit based on the measured position and current of the motor, and determine a circuit that has a leak based on the measured position and current of the motor when it is determined to have a leak in the hydraulic circuit.

A control method for bicycle anti-lock brake device includes determining whether a wheel deceleration of the bicycle is larger than or equal to a deceleration threshold. When the wheel deceleration of the bicycle is determined to be smaller than the deceleration threshold, the anti-lock brake device of the bicycle is inactivated. When the wheel deceleration of the bicycle is determined to be larger than or equal to the deceleration threshold, determining whether a wheel speed of the bicycle is larger than or equal to a wheel speed threshold. When the wheel speed of the bicycle is determined to be larger than or equal to the wheel speed threshold, the anti-lock brake device of the bicycle is activated. when the wheel speed of the bicycle is determined to be smaller than the wheel speed threshold, the anti-lock brake device of the bicycle is inactivated.

An electronic parking brake control system and method for controlling a parking brake of a vehicle. The system includes an electronic parking brake variable switch configured to produce an application signal based on an amount or an amount of time the switch is pulled upward or pushed downward. The system also includes an indicator configured to indicate an amount of application of the parking brake based on the application signal. The system also includes an electronic brake unit coupled to the electronic parking brake variable switch. The electronic brake unit is configured to receive the application signal, and transmit a rear brake signal to a plurality of rear brake actuators to apply a plurality of rear brakes based on the application signal when a speed of the vehicle is below a threshold speed or the vehicle is in a low gear.

A light weight, low cost, failsafe aircraft hydraulic brake control system featuring a park-on-return function that enables antiskid and differential brake control when selecting the parking brake for emergency braking, a paired wheel shuttle function that provides backup to a failed brake control channel without the addition of a backup brake control system, configurable as a system of identical autonomous brake control pods, each containing all the valves and sensors for controlling a subset of brakes thus limiting a worst case failure to affecting just those brakes, simplifying the hydraulic system installation and creating a complete reusable standard hydraulic brake control module.

In an embodiment, a brake control system determines a brake pedal travel value and a brake actuation position based on a brake pedal travel sensor and a motor actuation sensor of an autonomous driving vehicle (ADV). The brake control system determines a first threshold value based on the brake actuation position. The brake control system determines a deviation of the observed brake pedal travel value from the brake actuation position or the raw brake pedal sensor value are above the first threshold value and detects an intention of an operator to apply a brake control in response to determining that the deviation is above the first threshold value. This way, brake intervention can be detected prior to steady state and detection of an operator intervention is robust and reliable.

A deceleration turning assistance device, includes: braking devices respectively provided at each of a left wheel and a right wheel of a towed vehicle that is configured to be pivotably coupled to a towing vehicle via a coupling portion; and a braking force difference generating portion that, in a case of decelerated turning in a state in which the towed vehicle is coupled to the towing vehicle, is configured to generate a left-right braking force difference between the braking devices in accordance with a hitch angle between the towing vehicle and the towed vehicle so as to decrease the hitch angle.

To obtain a brake fluid pressure control device for a saddle-type vehicle capable of improving airtightness between a main body portion and a lid of a housing, suppressing a sealing material from leaking to the outside of the brake fluid pressure control device, and having a smaller size than the conventional one.

A brake fluid pressure control device according to the invention includes a housing which covers a coil driving a hydraulic pressure adjusting valve for opening and closing a flow path for a brake fluid and a circuit board controlling energization of the coil, the housing includes a main body portion which is provided with an opening portion and a lid which covers the opening portion and is attached to the main body portion, the main body portion includes a groove portion which is formed on the outer peripheral side of the opening portion, the lid includes an insertion wall which is inserted into the groove portion, a space for storing a sealing material is formed between the insertion wall and an outer peripheral wall of the groove portion and between the insertion wall and an inner peripheral wall of the groove portion, and a length of the outer peripheral wall extending toward the lid is longer than a length of the inner peripheral wall extending toward the lid.