The present disclosure provides an emergency braking system, an emergency braking method and a semitrailer, capable of improving the braking effect of the vehicle, thereby achieving improved safety for the vehicle. The system includes: a sensor component configured to collect sensed information on an environment where a semitrailer is located; and a braking controller configured to determine whether there is a risk of collision for the semitrailer based on the sensed information, and if so, calculate a maximum adhesive force that can be provided by a road surface the semitrailer is currently on, determine a first braking pressure corresponding to each wheel based on the maximum adhesive force and axle load information, and transmit to a braking system a first braking instruction carrying the first braking pressure for each wheel.

An aircraft or other vehicle includes a system and method for selectively allocating which friction brakes of a plurality of friction brakes are utilized in response to a braking demand. Said differently, the present disclosure provides a system and method that includes dynamically switching which friction brakes of a plurality of friction brakes are active (e.g., in use) at a given time in response to a braking demand. This dynamic switching may not only be based on the received braking demand (e.g., from a pilot or auto-braking module), but may also be based on one or more of the following: respective measured brake parameters of the plurality of friction brakes (e.g., temperature, extent-of-wear), aircraft parameters, external parameters, and respective calculated brake conditions.

A vehicle control apparatus executes a wheel speed change control to control speeds of first road wheels and a second road wheel to a lower limit wheel speed or more when braking forces are applied to the first and second road wheels, and at least one of the speeds of the first and second road wheels becomes lower than the lower limit wheel speed. A vehicle speed change control executes a first increase-decrease control which alternately executes a first increase control to increase braking forces applied to the first road wheels together and a first decrease control to decrease the braking forces applied to the first road wheels together and (ii) a second increase-decrease control which increases and decreases the braking force applied to the second road wheel.

A motor vehicle brake system is specified. The brake system comprises a driving dynamics regulation system, which is designed to carry out a wheel-specific regulating intervention on each of a plurality of vehicle wheels, and an electrically controllable actuator, which is designed to generate or boost a service brake force. The brake system further comprises a control, which is designed, in the event of an identified loss of function of the driving dynamics regulation system, to select one of at least two vehicle wheels on which a regulating intervention by the driving dynamics regulation system would be required and to electrically control the actuator on the basis of a regulating intervention determined for the selected vehicle 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.

The invention relates to a signal-processing device (402) for a vehicle having an ABS unit (404) and multiple wheels, each of which is assigned a sensor (S1, S2, S3, S4) for wheel signal generation. The signal-processing device (402) is designed to detect (602) a failure of a wheel signal, to form (604) a substitute signal for the failed wheel signal using the wheel signal of at least one sensor assigned to a wheel that is not affected by the failure, and to supply (606) the substitute signal to the ABS unit (404). The invention also relates to an ABS system (400) having the signal-processing device (402) and an ABS unit (404), a vehicle having the ABS system (400), a signal-processing method for a vehicle having an ABS unit (404), a computer programme having computer code for carrying out the signal-processing method, as well as a control unit containing the computer programme.

A method for estimating a value representing the frictional behavior of a vehicle being driven on a road segment, including receiving operating parameters of a vehicle including at least, a driving wheel angular velocity, an angular velocity of a free wheel of the vehicle, and vehicle a dynamic characteristic; computing a first ratio between the driving wheel angular velocity and the angular velocity of a free wheel of the vehicle, which are acquired when the vehicle is moving substantially in a straight line at a velocity greater than or equal to a first preset threshold; determining, from the received operating parameters, a second ratio between the driving wheel radius and the free wheel radius; determining a slip rate from a product of the first and second determined ratios; and obtaining a value representing the vehicle's frictional behavior by normalizing the determined slip rate using at least the vehicle's dynamic characteristic.

A method for controlling longitudinal dynamics in a motor vehicle during an autonomous driving operation, where the presence of a front vehicle traveling ahead of the vehicle is ascertained with the aid of a surround sensor system; ascertaining at least one longitudinal dynamics variable of the front vehicle, which describes the longitudinal vehicle dynamics of the front vehicle, with the aid of the surround sensor system; and ascertaining at least one variable, which is used in a brake control system of the motor vehicle, as a function of the longitudinal dynamics variable of the front vehicle.

The invention obtains a controller and a control method capable of appropriately assisting with an operation by a driver while preventing a motorcycle from falling over.

In the controller and the control method according to the invention, in a control mode to make the motorcycle perform an automatic cruise deceleration operation, automatic deceleration that is deceleration of the motorcycle generated by the automatic cruise deceleration operation is controlled in accordance with a lean angle of the motorcycle.

A service and emergency braking control system for at least one railway vehicle, including a plurality of braking control modules is provided. Each braking control module is equipped for: if, when achieving a determined braking torque value from an applied braking torque, an instantaneous deceleration value is lower than the target deceleration value, increasing the applied braking torque until the instantaneous deceleration value reaches the target deceleration value, or until the maximum available adhesion from an axle controlled by said braking control module is indicated.