A braking force control device includes a target acceleration calculation unit that calculates a first target acceleration based on an acquired operation amount of an accelerator pedal, a powertrain capability acquisition unit that acquires a braking force that is generable by a powertrain, and an instruction unit that instructs generation of braking forces in the powertrain and a brake. The instruction unit is configured to, when a first braking force for achieving the first target acceleration is equal to or less than the braking force that is generable by the powertrain, instruct a controller of the powertrain to generate the first braking force, and when the first braking force is larger than the braking force that is generable by the powertrain, instruct the controller of the powertrain to generate the braking force that is generable by the powertrain.

Various examples are directed to systems and methods for operating a vehicle comprising a tractor and a trailer attached for pulling behind the tractor. A center-of-mass system may determine a mass of the trailer and a tractor understeer. The center-of-mass system may determine the tractor understeer using steering input data describing a steering angle of the tractor and yaw data describing a yaw of the tractor. The center-of-mass system may determine a load center of mass using the tractor understeer and a mass of the trailer. The center-of-mass system may further determine that the load center of mass transgresses a center-of-mass threshold and send an alert message indicating that the load transgresses the load center-of-mass threshold.

A control device, system and method that distribute a braking request to at least one of a powertrain and a brake based on a braking request by driver operation and a braking force that is generable by the power train. When the braking request is larger than the braking force that is generable by the powertrain, the device, system and method instruct a controller of the powertrain to generate the braking force that is generable by the powertrain, and to instruct a controller of the brake to generate a braking force corresponding to a difference between the braking request and the braking force that is generable by the powertrain.

The present disclosure includes a system, method, and device related to controlling brakes of a towed vehicle. A brake controller system includes a brake controller that controls the brakes of a towed vehicle based on acceleration. The brake controller is in communication with a speed sensor. The speed sensor determines the speed of a towing vehicle or a towed vehicle. The brake controller automatically sets a gain or boost based on the speed and acceleration.

A vehicle brake control device including a wheel speed acquisition section, a wheel acceleration calculation section, an anti-lock brake control section, a bad road determination section, and a bad road amount setting section. The wheel acceleration calculation section calculates a first wheel acceleration and a second wheel acceleration. The bad road determination section determines that a running road surface is a bad road when the calculated first wheel acceleration is larger than a first boundary line where the first wheel acceleration increases as the second wheel acceleration is larger in an area where the first wheel acceleration is larger than the second wheel acceleration. The bad road amount setting section increases a bad road amount as the calculated first wheel acceleration is larger when it is determined that a running road surface is a bad road.

A brake force control apparatus allocates all of required brake force to a target front wheel friction brake force when the required brake force is equal to or smaller than a maximum regeneration brake force. The apparatus decreases the target regeneration brake force by a first predetermined amount at a first time point at which a front wheel acceleration varies from a value larger than a first acceleration threshold to a value equal to or smaller than the first acceleration threshold. The apparatus increases the target regeneration brake force in such a manner that the target regeneration brake force coincides with the required brake force, if the front wheel acceleration becomes larger than a second acceleration threshold in a period from the first time point to a second time point at which a predetermined time elapses from the first time point.

A powering pattern representing velocity of a vehicle at each position of a powering interval in a braking delay period between a timing at which the vehicle exceeds allowable velocity and a braking timing at which the vehicle starts to brake, and a coasting pattern representing velocity of the vehicle at each position of a coasting interval subsequent to the powering interval in the braking delay period are calculated after calculating a braking pattern representing velocity of the vehicle in a braking interval, which is a running interval subsequent to the coasting interval and which occurs between a position of the vehicle at the braking timing and a target position for controlling the vehicle to run at predetermined velocity or less, wherein an acceleration characteristic depending on velocity of the vehicle is used to calculate at least the powering pattern.

A driver alert arrangement for a motor vehicle includes a sensor detecting that the motor vehicle is in motion and transmitting a signal indicative of whether the motor vehicle is in motion. A driver monitoring camera captures images of a human driver of the motor vehicle. An electronic processor is communicatively coupled to the sensor, the driver monitoring camera, and to a user interface. The electronic processor receives the signal from the sensor, receives the images captured by the driver monitoring camera, determines from the images where the driver is looking, and alerts the driver via the user interface that the motor vehicle is in motion. The alerting is dependent upon the signal and where the driver is looking.

A braking control system and method of a vehicle are configured to safely stop the vehicle by determining whether a brake line fails via detecting a change in braking pressure and compensating for braking force through an engaging operation of an electric parking brake (EPB) when determining that the brake line fails in association with driver manipulation of the brake pedal. The braking control system includes: a vehicle speed detector; a wheel lock detector; a brake pedal operation detector that determines whether a brake pedal is operated; a brake line failure detector that determines whether the brake line fails when the brake pedal is operated; and a controller configured to engage the EPB when a current vehicle speed is equal to or greater than a predetermined vehicle speed, a current state is a wheel-unlock state, and the brake line fails.

A brake control system and method are arranged to control a brake for preventing slip and ensuring driving force of an outer wheel by adjusting a braking amount of an inner wheel during vehicle turning. The method includes steps of: receiving, by an electronic stability control (ESC) device, a function activation request; determining, by the ESC device, whether execution conditions for brake control of a turning inner wheel of a vehicle are satisfied in response to the function activation request, and when the execution conditions are satisfied, controlling braking pressure by determining and adjusting a braking pressure control amount of an inner wheel during vehicle turning based on a preset factor.