Methods and apparatus to determine brake pad wear are disclosed herein. An example vehicle disclosed herein includes a brake, memory, and a processor to execute instructions to detect the vehicle is in operation on a road, determine a deceleration capability of the brake in response to a first brake check event, compare the deceleration capability of the vehicle to a first threshold, and in response to determining the deceleration capability of the vehicle does not satisfy the first threshold, cause the vehicle to navigate to an exit of the road prior to a portion of the road with a grade higher than a threshold grade.

A method is for operating a brake system of a motor vehicle. The brake system includes at least one service brake and a transmission device having an output rod, by way of which a braking force is transmitted to the at least one service brake. The brake system further includes at least one parking brake having a trigger device for activating the at least one parking brake. The method provides increased safety and simplified implementation by (i) using an adjustment travel of the output rod to ascertain a deceleration acting on the motor vehicle due to the at least one service brake, and (ii) activating the at least one parking brake, when the trigger device is actuated, when the motor vehicle is ascertained as being stationary, taking into consideration the deceleration.

A braking control device includes: a wheel deceleration deriving section that derives decrease rates of wheel speed detection values as wheel deceleration calculation values; an average value deriving section that derives an average value of the wheel deceleration calculation values of wheels FL, FR, RL, and RR as a wheel deceleration average value; a determination section that determines, based on the wheel deceleration average value and an anteroposterior deceleration detection value, whether or not a slip increase state has been occurring for a determination time or longer; and a detection section that detects occurrence of cascade lock when it is determined that the slip increase state has been occurring for the determination time or longer during vehicle braking.

In some examples, a cooling system defines a first flow path for a first gas stream and a second flow path for a second gas stream. The cooling system is configured to merge the first gas stream and the second gas stream to produce a mixed gas stream and provide the mixed gas stream to cool a brake assembly of a wheel. Control circuitry is configured to adjust a flow rate of the second gas stream based on a pressure and/or other flow parameter of the first gas stream. In examples, the control circuitry is configured to initiate and/or substantially cease cooling to the brake assembly based on a temperature signal indicative of a temperature of the brake assembly.

In the case of a method for operating a brake system of an at least double-tracked motor vehicle (10) which comprises 2 breakable wheels (12.sub.L, 12.sub.R), which are arranged at opposite ends of an axle (14.sub.V), and a rollover protection system, which can cause braking of the wheels (12.sub.L, 12.sub.R) in order to prevent a rollover situation, automatic braking of that wheel of the axle (14.sub.V), which is loaded more greatly when cornering is brought about by way of the rollover protection system. Subsequently, a counter-steering movement is detected by way of a predefined steering angle change being exceeded in a predefined time period in the direction counter to the cornering direction, and, thereupon, a brake force is caused to be built up at the opposite wheel, which is loaded less greatly by way of the rollover protection system.

A vehicle control device includes a vehicle control ECU configured to start deceleration control of controlling a braking device when a probability of collision between an own vehicle and a crossing target is high, and to finish the deceleration control when a predetermined control finish condition is satisfied. The control finish condition includes an avoidance condition satisfaction or dissatisfaction of which is determined when the crossing target is before crossing a predicted travel region of the own vehicle and the own vehicle and the crossing target are moving. The avoidance condition is satisfied when a predetermined condition is satisfied. The predetermined condition is set based on an own vehicle passage predicted time that is a predicted time taken by the own vehicle to pass through an intersecting region and a crossing target reaching predicted time that is a predicted time taken by the crossing target to reach the intersecting region.

A vehicle control apparatus may include at least a brake, at least a sensor, a memory, and a processor. The vehicle control apparatus may identify, based on the at least a sensor, braking information including at least one of host vehicle driving speed, host vehicle acceleration, required acceleration, other-vehicle acceleration, whether to use the first brake, or braking pressure by the second brake, or any combination thereof if a braking trigger signal for a host vehicle is identified, and may perform, by selectively using the first brake and the second brake, braking control for the host vehicle based on the braking information.

A relationship between a torque of a motor and a braking force generated in the electric brakes has a hysteresis characteristic. When the torque increases, the braking force increases along a positive efficiency line, and when the torque decreases, the braking force decreases along an inverse efficiency line. A prediction unit predicts a change in the required braking force from the present onwards. An operating point adjuster stores a maximum torque on the positive efficiency line and a minimum torque on the inverse efficiency line corresponding to the maintained braking force. The operating point adjuster adjusts an operating point that maintains the braking force in an adjustment zone between the minimum torque and the maximum torque, based on a prediction information from the prediction unit. The torque command calculation unit calculates a torque command value for the motor at the operating point adjusted by the operating point adjuster.

An apparatus for a vehicle to manage different braking modes is introduced. The apparatus may use a control device, along with sensors and memory, to monitor acceleration error and a real-time driving mode. Based on information about the acceleration error and the real-time driving mode and predefined reference values, the control device may switch between driving mode, auxiliary braking mode, simultaneous braking mode, or main braking reduction mode. This may enable the vehicle to optimize braking based on real-time conditions.

A motor control device includes a torque command calculation unit that calculates a torque command value, a current command calculation unit that calculates a current command value, a power converter, and a stop position adjuster. The stop position adjuster executes a stop position adjustment process that adjusts the rotation stop position within a specified position adjustment range when a lock current is applied while the rotation of the multiphase motor is stopped, except in cases where specified exemption requirement is met. In a stop position adjustment process, the stop position adjuster adjusts the rotation stop position so as to reduce a current absolute value of a maximum current phase having a maximum current absolute value among the phases. The torque command calculation unit or the current command calculation unit calculates a torque command value or a current command value reflecting an adjusted rotation stop position.