A vehicle control system having a plurality of speed control systems, each operable to cause the vehicle to operate in accordance with a respective target speed. The system is operable wherein one of the plurality of speed control systems may be selected to control vehicle speed at a given moment in time, wherein when responsibility for speed control is transferred from a first one of the plurality of speed control systems to a second one of the speed control systems, the second one of the speed control systems is operable to set a value of target speed thereof to a value corresponding to that of the target speed of the first.

An emergency park brake system of an aircraft may include an electrical power interface, an electromechanical actuator, and a hydraulic brake valve. The electrical power interface may be configured to receive electrical power from a power source. The electromechanical actuator may be in selective power receiving communication with the electrical power interface and the electromechanical actuator may be mechanically coupled to and configured to selectively actuate the hydraulic brake valve. The electrical connection between the electromechanical actuator and the electrical power interface may be based on an emergency braking input.

Methods and apparatus to control vehicle braking systems are described herein. An example apparatus a first brake boost unit to control a first brake fluid pressure of a first brake system associated with front wheels of a vehicle, and a second brake boost unit to control a second brake fluid pressure of a second brake system associated with rear wheels of the vehicle.

A brake device for a vehicle includes: braking devices provided corresponding to right/left wheels, respectively, the braking devices being configured to generate braking forces by pressing forces according to a depression amount of a pedal; a wheel speed sensor configured to detect rotational speeds of the wheels; a pressing force sensor configured to detect the pressing forces; and a control device configured to control the braking force generating devices. The control device is configured to acquire the rotational speeds and the pressing forces in a state where the braking device is performing braking, specify deceleration, based on the acquired rotational speeds, and specify the loads that are supported by the wheels, based on the specified deceleration and the acquired pressing forces and controls the pressing forces corresponding to the right/left wheels such that a difference in deceleration between the right and left wheels becomes smaller, based on the loads.

A brake controller of a machine can be configured to determine brake power associated with braking operations, such as operations to slow the machine or maintain a speed of the machine. The brake controller can allocate the brake power among systems such as a battery system, a resistive grid, auxiliary systems, a mechanical brake system, and/or other systems, based on a defined priority order of the systems. For example, the brake controller can prioritize using a regenerative brake system to charge a battery system during a braking operation up to a currently-available capacity of the battery system, and allocating any remaining brake power to a lower-priority system. The mechanical brake system can be the lowest-priority system, such that use of the mechanical brake system can be avoided unless an amount of brake power exceeds capacities of higher-priority systems to consume the brake power.

A vehicle trailer brake system and method with a hydraulic control line and supplementary line arranged between a towing vehicle and a towed trailer, wherein the trailer braking system is actuated from the towing vehicle by controlling the hydraulic pressure in the control line and the supplementary line. The trailer brake system may be operated to actuate a trailer brake using a trailer-based hydraulic accumulator, to provide for relatively fast response time for the trailer brake.

A battery-temperature raising apparatus includes a battery, a transmission, an oil pan, a heat-retaining oil tank, a heat exchanger, a first valve, a temperature sensor, and a control unit. The transmission includes a transmission mechanism that converts torque and a clutch capable of braking a wheel. The oil pan and the oil tank are disposed in the transmission and are in communication with the heat exchanger that exchanges heat between the battery and oil. The first valve opens and closes a path joining the oil tank and the heat exchanger. The control unit generates braking force by controlling engagement force of the clutch depending on an amount of depression of a brake pedal. The control unit supplies the oil stored in the oil tank to the heat exchanger by opening the first valve when a temperature of the battery detected by the temperature sensor is below a predetermined temperature.

A braking system in an at least partially autonomous vehicle, having one vehicle wheel brake per vehicle wheel and having a primary brake regulation system and a redundant secondary brake regulation system. One hydraulic actuator for actuating the vehicle brake is provided per vehicle wheel in a first vehicle axle which actuator is assigned to both the primary brake regulation system and also the secondary brake regulation system. One electromechanical primary actuator per vehicle wheel is assigned to the primary brake regulation system in the second vehicle axle and one electromechanical secondary actuator is assigned to the secondary brake regulation system.

The present disclosure relates to methods, systems, a vehicle and a computer-readable storage medium and a computer program product. The method includes obtaining a near-collision warning signal from a collision warning system of the vehicle, the near-collision warning signal being representative of a collision event determined based on sensor data representative of a surrounding environment of the vehicle. The method further includes obtaining an operational position of an accelerator pedal of the vehicle configured for operating the vehicle by means of a one pedal driving control system. Further, the method includes generating, based on the obtained near-collision warning signal, a corresponding negative torque reinforcement factor to be applied to a normal braking force of the vehicle associated with each obtained operational position of the accelerator pedal.

The present disclosure relates to a zero-drag control device of an EMB system and a zero-drag control method using the same, which effectively control a drag phenomenon. By adjusting a gap between a disk and a pad in consideration of not only a braking intention through a brake pedal but also an accelerating intention through an accelerator pedal, the drag phenomenon can be effectively controlled and the braking response can be improved.