An electronic control unit (ECU) is disclosed. The ECU may detect an emergency stopping event associated with a vehicle. The ECU may determine, based on detecting the emergency stopping event, that electro-hydraulic brakes of the vehicle are in a disabled mode. The ECU may determine, based on determining that the electro-hydraulic brakes are in the disabled mode, a position of a brake pedal of the vehicle. The ECU may override, based on the position of the brake pedal, the disabled mode to engage the electro-hydraulic brakes during the emergency stopping event.

An electronic control unit (ECU) is disclosed. The ECU may detect an emergency stopping event associated with a vehicle. The ECU may determine, based on detecting the emergency stopping event, that electro-hydraulic brakes of the vehicle are in a disabled mode. The ECU may determine, based on determining that the electro-hydraulic brakes are in the disabled mode, a position of a brake pedal of the vehicle. The ECU may override, based on the position of the brake pedal, the disabled mode to engage the electro-hydraulic brakes during the emergency stopping event.

A controller includes a failure detection unit that detects a failure in a first power supply system, and a power supply system control unit that closes a relay in a case where an execution of an automatic parking function starts and, during the execution of the function, causes the first power supply system to supply power, without causing a second power supply system to supply power, to the electric brake device, by setting a target output voltage of the second power supply system lower than an output voltage of the first power supply system when the failure detection unit does not detect the failure, and operates the electric brake device by setting the target output voltage to a voltage within a range in which the electric brake device is operable when the failure detection unit detects the failure.

A controller includes a failure detection unit that detects a failure in a first power supply system, and a power supply system control unit that closes a relay in a case where an execution of an automatic parking function starts and, during the execution of the function, causes the first power supply system to supply power, without causing a second power supply system to supply power, to the electric brake device, by setting a target output voltage of the second power supply system lower than an output voltage of the first power supply system when the failure detection unit does not detect the failure, and operates the electric brake device by setting the target output voltage to a voltage within a range in which the electric brake device is operable when the failure detection unit detects the failure.

A weight profile determination system includes a sensor and a controller. The sensor is disposed along a route and configured to generate a plurality of force measurements of a vehicle system moving on the route relative to the sensor. The force measurements are obtained at different times and correspond to different locations along a length of the vehicle system. The controller is configured to determine a weight profile for the vehicle system based on the force measurements generated by the sensor. The weight profile represents a distribution of weight along the length of the vehicle system. The controller is configured to communicate the weight profile to one or more of the vehicle system or an offboard device for controlling movement of the vehicle system based on the weight profile.

In a method for controlling a hydraulic brake system in a vehicle, wherein the hydraulic brake system is equipped with a hydraulic pump, the hydraulic pump is activated to hold the vehicle at rest and brake fluid is conveyed via open inlet valves to the wheel braking device of a first vehicle axle. The inlet valves on wheel braking devices of a second vehicle axle are at least partially open in response to a change in the brake pressure requirement in the brake system, and at the same time the outlet valves on said wheel braking devices remain closed while the vehicle is being held at rest.

According to at least one embodiment, the present disclosure provides an electronic braking system comprising: a main master cylinder including a main body, a main piston that is accommodated to be movable in the main body, a main chamber that is defined in the main body and connected with at least one wheel brake, a motor that generates a rotation force, and a power conversion unit that has one side connected with the motor and another side connected with the main piston, and converts a rotational motion of the motor into a straight motion, the main master cylinder being configured to generate hydraulic pressure by movement of the main piston; a motor position sensor disposed to sense a rotation distance of the motor; and a braking controller configured to perform control to move the main piston to a preset initial position by calculating displacement of the main piston based on the rotation distance of the motor and adjusting an amount of a current that is supplied to the motor.

According to at least one embodiment, the present disclosure provides an electronic braking system comprising: a main master cylinder including a main body, a main piston that is accommodated to be movable in the main body, a main chamber that is defined in the main body and connected with at least one wheel brake, a motor that generates a rotation force, and a power conversion unit that has one side connected with the motor and another side connected with the main piston, and converts a rotational motion of the motor into a straight motion, the main master cylinder being configured to generate hydraulic pressure by movement of the main piston; a motor position sensor disposed to sense a rotation distance of the motor; and a braking controller configured to perform control to move the main piston to a preset initial position by calculating displacement of the main piston based on the rotation distance of the motor and adjusting an amount of a current that is supplied to the motor.

An automatic brake control apparatus for a vehicle is configured to control a brake device of the vehicle in a control of a driving assist system of the vehicle. The automatic brake control apparatus includes electronic control units. The electronic control units include a first electronic control unit and are communicably coupled to each other and configured to exchange data with each other. The first electronic control unit is configured to control the driving assist system. The first electronic control unit is configured to send, to one or more of the electronic control units, an instruction that controls the brake device and that includes a first instruction for controlling a behavior of the vehicle and a second instruction that has an instruction content different from an instruction content of the first instruction.

Systems and methods for controlling a vehicle may include receiving sensor data from a plurality of sensors, the sensor data including vehicle parameter information for the vehicle; using the sensor data to determine a vehicle state for a vehicle negotiating a corner, wherein the vehicle state comprises information regarding a magnitude of an effective understeer gradient for the vehicle; computing a yaw moment required to correct the effective understeer gradient based on the magnitude of the effective understeer gradient; and applying a brake torque to a single wheel of the vehicle, wherein an amount of brake torque applied is sufficient to lock up the single wheel to create a yaw moment on the vehicle to achieve the computed yaw moment required to correct the effective understeer gradient.