Disclosed are systems and methods for regulating application of an emergency brake configured to minimize jerk for riders' comfort while assuring safe application of the emergency brake. An emergency brake optimization module may be provided and positioned in fluid communication with a standard hydraulic brake system to regulate the application of the emergency brake through (i) providing an initial inflow of hydraulic fluid through a dead time caliper fill circuit to the brake supply line during a dead time period of fluid supply through the emergency brake valve to reduce dead time in emergency brake application, (ii) providing an oversized choke, or optionally no choke, in the emergency brake circuit with jerk being controlled through consumption of excess hydraulic fluid by a secondary volume consumption circuit, and (iii) providing both a dead time caliper fill circuit and a secondary volume consumption circuit to more precisely control reduction in dead time and minimization of jerk during application of the emergency brake.

An electronically controllable pneumatic brake system includes a brake circuit, wherein a control valve is associated with the brake circuit for the purpose of adjusting braking pressures at service brakes independently of each other, wherein the control valve comprises an electronic control input for receiving an electrical control signal and a pneumatic control input for receiving a control pressure. The pneumatic brake system additionally includes a first control unit for outputting the electronic control signal depending on a target vehicle deceleration for the electrical actuation of the control valve, a first brake valve configured to specify a first brake valve control pressure, and a second brake valve configured to output a second brake valve control pressure. The second brake valve is disposed such that the first brake valve control pressure and/or the second brake valve control pressure is output as the control pressure to the control valve.

An information presentation device, mounted on a vehicle for which automatic evacuation control functions when it is difficult for a driver to continue driving the vehicle, and presenting information to an occupant of the vehicle except the driver by a display in a display area that is visually recognizable by the occupant, includes: an operation information acquisition unit that acquires operation information of the automatic evacuation control; and a display generation unit that generates an occupant notification display that is displayed in the display area to notify information relating to the automatic evacuation control when the automatic evacuation control is in operation. The occupant notification display includes: an explanatory image that shows an explanation of a process executed currently; and a progress image that indicates a degree of progress in the automatic evacuation control.

An information presentation device, mounted on a vehicle for which automatic evacuation control functions when it is difficult for a driver to continue driving the vehicle, and presenting information to an occupant of the vehicle except the driver by a display in a display area that is visually recognizable by the occupant, includes: an operation information acquisition unit that acquires operation information of the automatic evacuation control; and a display generation unit that generates an occupant notification display that is displayed in the display area to notify information relating to the automatic evacuation control when the automatic evacuation control is in operation. The occupant notification display includes: an explanatory image that shows an explanation of a process executed currently; and a progress image that indicates a degree of progress in the automatic evacuation control.

A brake control system (BCS) may comprise a first controller, a second controller in electronic communication with the first controller, and a valve comprising a first coil and a second coil. The first controller may be configured to actuate the valve via the first coil. The second controller may be configured to actuate the valve via the second coil. The first controller may be configured to disable the second controller to take over control of the valve.

Disclosed is a method for controlling brakes in a trailer vehicle comprising a pneumatic brake system, service brakes and an electronic brake system with anti-lock control, wherein at least one axle of the trailer vehicle is fitted with spring-loaded brakes and revolution rate sensors. The method comprises: monitoring with the electronic brake system whether there is a braking demand, monitoring with the electronic brake system whether at least one wheel of at least one axle is locking up, and if there is no braking demand and at least one wheel of the at least one axle is locked while traveling, controlling the pneumatic braking system with the electronic brake system to pressurize the spring-loaded brakes and to brake the trailer vehicle by the service brakes automatically and with anti-lock control. A valve arrangement is also disclosed.

Disclosed is a method for controlling brakes in a trailer vehicle comprising a pneumatic brake system, service brakes and an electronic brake system with anti-lock control, wherein at least one axle of the trailer vehicle is fitted with spring-loaded brakes and revolution rate sensors. The method comprises: monitoring with the electronic brake system whether there is a braking demand, monitoring with the electronic brake system whether at least one wheel of at least one axle is locking up, and if there is no braking demand and at least one wheel of the at least one axle is locked while traveling, controlling the pneumatic braking system with the electronic brake system to pressurize the spring-loaded brakes and to brake the trailer vehicle by the service brakes automatically and with anti-lock control. A valve arrangement is also disclosed.

Provided is a vehicle brake system equipped with an electric brake and which has high reliability and enables redundancy at low cost. This vehicle brake system 1 is equipped with a mutually connected master controller 30 and first and second sub-controllers 40, 41, and an output cut-off control unit 200. Each of the controllers includes: a braking force calculation section for calculating the braking force of the electric brake; a self-determination section for determining whether or not the controller itself is normal; and an other-determination section for comparing the braking force calculation results of the controllers to determine whether the other two are normal. Upon determining that the master controller is not normal, the output cut-off control unit cuts off the output of the master controller, the determination being made on the basis of the self-determination result made by the master controller, the self-determination result and determination result regarding the master controller made by the first sub-controller, and the self-determination result and determination result regarding the master controller made by the second sub-controller.

Provided is a vehicle brake system equipped with an electric brake and which has high reliability and enables redundancy at low cost. This vehicle brake system 1 is equipped with a mutually connected master controller 30 and first and second sub-controllers 40, 41, and an output cut-off control unit 200. Each of the controllers includes: a braking force calculation section for calculating the braking force of the electric brake; a self-determination section for determining whether or not the controller itself is normal; and an other-determination section for comparing the braking force calculation results of the controllers to determine whether the other two are normal. Upon determining that the master controller is not normal, the output cut-off control unit cuts off the output of the master controller, the determination being made on the basis of the self-determination result made by the master controller, the self-determination result and determination result regarding the master controller made by the first sub-controller, and the self-determination result and determination result regarding the master controller made by the second sub-controller.

A method for operating a brake installation of a vehicle. A first electrically controllable pressure provision device provides brake pressure for actuating hydraulically actuatable brakes. A first electronic open-loop and closed-loop control unit, and a first pressure detection device, measures brake pressure provided by a primary brake system. A secondary brake system between the primary system and a part of the wheel brakes has a second electrically controllable pressure provision device provides brake pressure for actuating at least the part of the brakes. A second electronic open-loop and closed-loop control unit, and at least one second pressure detection device, the signals of which are processed in the second electronic open-loop and closed-loop control unit. The secondary system monitors the primary system based on signals from the second pressure detection device and on a predefined brake pressure demand to build up a brake pressure corresponding to the predefined brake pressure demand.