A brake system for actuating a pair of front wheel brakes and a pair of rear wheel brakes is selectively operable during a manual push-through mode. A primary power transmission unit actuates at least one of wheel brakes in a normal braking mode. A secondary power transmission unit actuates the front wheel brakes in a backup braking mode. A primary electronic control unit controls at least one of the primary power transmission unit and a pair of rear brake motors. A secondary electronic control unit controls at least one of the secondary power transmission unit and the rear brake motors. An ABS modulator arrangement is hydraulically interposed between at least one of first and second three-way valves and at least a selected wheel brake. A multiplex control valve arrangement is hydraulically interposed between the secondary power transmission unit and the front wheel brakes.

A brake system for actuating a pair of front wheel brakes and a pair of rear wheel brakes is selectively operable during a manual push-through mode. A primary power transmission unit actuates at least one of wheel brakes in a normal braking mode. A secondary power transmission unit actuates the front wheel brakes in a backup braking mode. A primary electronic control unit controls at least one of the primary power transmission unit and a pair of rear brake motors. A secondary electronic control unit controls at least one of the secondary power transmission unit and the rear brake motors. An ABS modulator arrangement is hydraulically interposed between at least one of first and second three-way valves and at least a selected wheel brake. A multiplex control valve arrangement is hydraulically interposed between the secondary power transmission unit and the front wheel brakes.

A brake system includes a reservoir and a master cylinder operable to provide a brake signal responsive to actuation of a brake pedal connected thereto. The master cylinder is selectively operable to generate brake actuating pressure at an output for hydraulically actuating a pair of hydraulically actuated wheel brakes in a manual push-through operation. A power transmission unit is configured to selectively generate pressurized hydraulic fluid for actuating the pair of hydraulically actuated wheel brakes. First and second two-position three-way valves are hydraulically connected to respective ones of the pair of hydraulically operated brakes and to both the master cylinder and the power transmission unit. The first and second three-way valves each are configured to selectively switch the respective hydraulically operated brake to receive fluid from a selected one of the master cylinder, in a backup braking mode, and the power transmission unit, in a normal non-failure braking mode.

A brake system includes a reservoir and a master cylinder operable to provide a brake signal responsive to actuation of a brake pedal connected thereto. The master cylinder is selectively operable to generate brake actuating pressure at an output for hydraulically actuating a pair of hydraulically actuated wheel brakes in a manual push-through operation. A power transmission unit is configured to selectively generate pressurized hydraulic fluid for actuating the pair of hydraulically actuated wheel brakes. First and second two-position three-way valves are hydraulically connected to respective ones of the pair of hydraulically operated brakes and to both the master cylinder and the power transmission unit. The first and second three-way valves each are configured to selectively switch the respective hydraulically operated brake to receive fluid from a selected one of the master cylinder, in a backup braking mode, and the power transmission unit, in a normal non-failure braking mode.

Braking systems and methods for an autonomous vehicle are provided. Braking devices are associated with respective wheels of the autonomous vehicle. A hydraulic circuit is connected between a primary braking module (PBM) and the braking devices and connected between a secondary braking module (SBM) and the braking devices. One of a PBM electronic control unit and a SBM electronic control unit is configured to: in response to detecting a communications failure of the other braking module, apply a predetermined hydraulic pressure operation in the hydraulic circuit. The other of the PBM electronic control unit and the SBM electronic control unit is configured to identify, based on output from the at least one sensor, the predetermined hydraulic pressure operation being applied by the one of the PBM electronic control unit and the SBM electronic control unit, and select and execute a braking profile based thereon.

Braking systems and methods for an autonomous vehicle are provided. Braking devices are associated with respective wheels of the autonomous vehicle. A hydraulic circuit is connected between a primary braking module (PBM) and the braking devices and connected between a secondary braking module (SBM) and the braking devices. One of a PBM electronic control unit and a SBM electronic control unit is configured to: in response to detecting a communications failure of the other braking module, apply a predetermined hydraulic pressure operation in the hydraulic circuit. The other of the PBM electronic control unit and the SBM electronic control unit is configured to identify, based on output from the at least one sensor, the predetermined hydraulic pressure operation being applied by the one of the PBM electronic control unit and the SBM electronic control unit, and select and execute a braking profile based thereon.

According to at least one embodiment, the present disclosure provides an electro-hydraulic brake comprising: a main brake unit configured to provide braking hydraulic pressure to a plurality of wheel cylinders by driving a motor; an auxiliary brake unit connected to the main brake unit to be filled with high-pressure braking hydraulic pressure, and configured to provide braking hydraulic pressure to the plurality of wheel cylinders when an operation error of the main brake unit occurs; a main battery configured to supply power to the main brake unit and the auxiliary brake unit; and an auxiliary battery configured to supply power to the auxiliary brake unit when the main battery fails, wherein the auxiliary brake unit comprises an auxiliary brake control unit that controls charging and discharging of the auxiliary battery, and a power module that monitors a state of the main battery and transmits the state to the auxiliary brake control unit, and a battery management module that monitors a state of charge (SOC) of the auxiliary battery and transmits the state of charge to the auxiliary brake control unit.

According to at least one embodiment, the present disclosure provides an electro-hydraulic brake comprising: a main brake unit configured to provide braking hydraulic pressure to a plurality of wheel cylinders by driving a motor; an auxiliary brake unit connected to the main brake unit to be filled with high-pressure braking hydraulic pressure, and configured to provide braking hydraulic pressure to the plurality of wheel cylinders when an operation error of the main brake unit occurs; a main battery configured to supply power to the main brake unit and the auxiliary brake unit; and an auxiliary battery configured to supply power to the auxiliary brake unit when the main battery fails, wherein the auxiliary brake unit comprises an auxiliary brake control unit that controls charging and discharging of the auxiliary battery, and a power module that monitors a state of the main battery and transmits the state to the auxiliary brake control unit, and a battery management module that monitors a state of charge (SOC) of the auxiliary battery and transmits the state of charge to the auxiliary brake control unit.

The present invention provides a braking system (11) for braking a train. The system comprises an electronically controlled pneumatic brake network (ECP) and a brake activation unit (14). The brake activation unit provides status reports regarding the condition of the ECP and comprises at least one sensor for monitoring one or more properties of the ECP, and at least one venting means adapted to vent the pressure from a brake pipe (21). The system also comprises a telecommunication network (15, 17, 19) adapted to communicate with the brake activation unit. The brake activation unit can be activated using the telecommunication network to vent the pressure from the brake pipe, causing the train to brake.

The present invention provides a braking system (11) for braking a train. The system comprises an electronically controlled pneumatic brake network (ECP) and a brake activation unit (14). The brake activation unit provides status reports regarding the condition of the ECP and comprises at least one sensor for monitoring one or more properties of the ECP, and at least one venting means adapted to vent the pressure from a brake pipe (21). The system also comprises a telecommunication network (15, 17, 19) adapted to communicate with the brake activation unit. The brake activation unit can be activated using the telecommunication network to vent the pressure from the brake pipe, causing the train to brake.