A comfort brake control system and control method for a vehicle are disclosed. The vehicle has multiple optional comfort brake levels, and each comfort brake level includes one or more brake parameters corresponding to the comfort brake level. The comfort brake control system includes: a human-machine interaction interface, configured to provide an interface for modifying the one or more brake parameters and receive a modification to at least one of the one or more brake parameters; and a comfort brake module, configured to determine whether the modification satisfies a safety requirement, allow the modification when it is determined that the modification satisfies the safety requirement, and prohibit the modification when it is determined that the modification does not satisfy the safety requirement; wherein the comfort brake module is further configured to assess a comfort degree of vehicle braking after the modification if it is determined that the modification satisfies the safety requirement.

A system for dynamically calculating collision avoidance metric thresholds for a vehicle includes a vehicle sensor, a passenger position tracking device, and a controller. The controller is in electrical communication with the vehicle sensor and the passenger position tracking device. The controller is programmed to determine a collision avoidance metric using the vehicle sensor, determine an offset to a collision avoidance metric threshold using the passenger position tracking device, and adjust the collision avoidance metric threshold based on the offset. The controller is also programed to compare the collision avoidance metric to the collision avoidance metric threshold and perform an action in response to determining that the collision avoidance metric is less than or equal to the collision avoidance metric threshold.

A work vehicle brake energy management system includes an axle speed sensor for monitoring a rotational speed of a work vehicle axle, a friction brake mechanism controllable to slow rotation of the work vehicle axle, a brake pressure sensor for measuring a brake apply pressure of the friction brake mechanism, and computer-readable memory. A processing subsystem is coupled to the axle speed sensor, to the brake pressure sensor, and to the computer-readable memory. The processing subsystem is configured to: (i) utilize data from the axle speed sensor and from the brake pressure sensor to detect brake overtemperature events during which an internal brake temperature of the friction brake mechanism exceeds at least a first critical temperature threshold stored in the computer-readable memory; and (ii) perform at least one predetermined brake overtemperature action in response to detection of a brake overtemperature event.

A comfort brake control system and a brake method for a vehicle is disclosed. The comfort brake control system includes: a human-machine interaction interface, configured to provide an interface of multiple optional comfort brake levels of the vehicle, and receive selection of one of the multiple comfort brake levels to switch a current comfort brake level of the vehicle, wherein each comfort brake level comprises a brake parameter corresponding to the comfort brake level, and the brake parameter comprises at least brake pressure and a brake pressure change rate of at least one brake cylinder of the vehicle; and a comfort brake module, configured to determine whether a current state of the vehicle meets a predetermined switching condition; and when it is determined that the switching condition is met, obtain a brake parameter corresponding to a selected comfort brake level, and transmit the obtained brake parameter to a brake system of the vehicle by using a vehicle bus of the vehicle.

Provided is a vehicle body behavior control device and a method of controlling behavior of a vehicle body which can reduce unstable behavior of the vehicle body. A vehicle body behavior control device incorporated into a vehicle body having a plurality of wheels includes: a brake mechanism which controls behavior of the wheels; and a control part which controls an interlocking brake operation in which a braking force is applied to the plurality of wheels using the brake mechanism when an operation for applying braking to any one of the wheels is performed based on a gradient value of a road surface on which the vehicle body travels.

A method for controlling a differential braking arrangement of a vehicle, said vehicle comprising at least one auxiliary braking arrangement and at least one differential braking arrangement, said auxiliary braking arrangement and said differential braking arrangement being connected to a pair of propelled wheels of said vehicle, wherein the differential braking arrangement is arranged to control a relative rotational speed between the pair of propelled wheels, wherein the method comprises the steps of receiving a signal indicative of a downhill slope for a road ahead of said vehicle; determining an inclination of said downhill slope; determining a braking power needed for the at least one auxiliary braking arrangement for preventing the vehicle speed of the vehicle from exceeding a predetermined speed limit when driving at the downhill slope; and engaging the at least one differential braking arrangement for reducing the relative rotational speed between the propelled wheels if the determined braking power of the at least one auxiliary braking arrangement is higher than a predetermined threshold.

A vehicle-electrical-apparatus, including: a) a service-brake-device having an electropneumatic service-brake-device, which is an electronically-brake-pressure-regulated-brake-system, having an electropneumatic-service-brake-valve-device (ESBVD), a first-electronic-brake-control-device (EBCD), electropneumatic-modulators and pneumatic-wheel-brake actuators; b) a sensor-device to deliver sensor-signals, including: at least one wheel-rotational-speed-sensor, a longitudinal-acceleration-sensor, a transverse-acceleration-sensor, a yaw-rate-sensor, and/or a steering-wheel-angle-sensor, wherein: c) the first-EBCD electrically controls the electropneumatic-modulators, which generate pneumatic-brake-pressures or brake-control-pressures for the pneumatic-wheel-brake-actuators, and d) the ESBVD has a service-brake-actuation-member and, within at least one electrical-service-brake-circuit, at least one electrical-channel containing at least one electrical-brake-value-transmitter, actuate-able by the service-brake-actuation-member, for coupling out actuation-signals depending on actuation of the service-brake-actuation-member, and at least one second-EBCD, receiving the actuation-signals and independent of the first-EBCD, which second-ECBD couples brake-request signals into the first-EBCD depending on the actuation-signals, and, within at least one pneumatic-service-brake-circuit, at least one pneumatic-channel in which at least one control-piston of the service-brake-valve-device is loaded with a first-actuation-force by actuating the service-brake-actuation-member based on a driver-brake-request, and the control-piston directly/indirectly controls at least one double-seat valve, containing an inlet-seat/outlet-seat, of the service-brake-valve-device to generate pneumatic-brake-pressures or brake-control-pressures for the pneumatic-wheel-brake-actuators; e) a means to generate a second-actuation-force that acts on the at least one control-piston in the same/opposite direction to the first-actuation-force; wherein: f) brake slip and/or driving-dynamics-regulation-routines are in the second-EBCD, g) the second-EBCD receives sensor-signals, and h) for braking requested depending on driver-braking or requested independently of a driver-brake-request, the means generates the second-actuation-force, such that at least one brake-slip and/or driving-dynamics-regulation operation is performed.

Longitudinal acceleration, intended travel angle, wheel speed, and requested drive torque signals are measured for a vehicle. The longitudinal acceleration, intended travel angle, wheel speed, and requested drive torque signals are then evaluated. A brake torque is calculated as a function of a propulsive torque, wherein the propulsive torque is produced by a power source for the vehicle. The brake torque is applied when the longitudinal acceleration signal exceeds a longitudinal acceleration threshold, the intended travel angle signal is between intended travel angle limits, the wheel speed signal is less than a minimum speed threshold, the requested drive torque signal exceeds a requested drive torque threshold, and a torque threshold is exceeded.

A brake control apparatus for construction machinery, includes first and second brake lines through which a brake oil is supplied to a front brake device and a rear brake device of the construction machinery, first and second proportional flow control valves installed respectively in the first and second brake lines to control a flow rate of the brake oil in proportion to inputted first and second brake control signals, a sensing portion configured to detect work and travel information of the construction machinery, and a controller configured to output the first and second brake control signals in response to a brake manipulation signal of a driver, and configured to control independently the first and second proportional flow control valves based on the work and travel information of the construction machinery detected by the sensing portion.

Aspects of the disclosure provide for generation of trajectories for a vehicle driving in an autonomous driving mode. For instance, information identifying a plurality of objects in the vehicle's environment and a confidence value for each of the objects is received. A set of constraints may be generated. That one or more processors are unable to solve for a trajectory given the set of constraints and an acceptable braking limit may be determined. A first constraint is identified as a constraint for which could not be solved and a first confidence value. That the vehicle should apply a maximum braking level is determined based on the identified first confidence value, a threshold, and the determination that the one or more processors are unable to solve for a trajectory. Based on the determination that the vehicle should apply the maximum braking level, the maximum braking level is applied.