A drive assist apparatus includes a detector and a traveling controller. The detector detects an operation target of automatic emergency braking of a vehicle. The traveling controller includes a calculator and a determiner, and controls the automatic emergency braking on the basis of a result of the detection performed by the detector. The calculator calculates each of a target deceleration rate and a variation rate. The target deceleration rate is a target value of a deceleration rate of the automatic emergency braking. The variation rate is a rate of variation in the deceleration rate required for the deceleration rate of the automatic emergency braking to reach the target deceleration rate. The determiner determines a contact risk of the vehicle with the operation target on the basis of the target deceleration rate. The calculator increases the variation rate when the contact risk is determined by the determiner as being relatively high.

A drive assist apparatus includes a detector and a traveling controller. The detector detects an operation target of automatic emergency braking of a vehicle. The traveling controller includes a calculator and a determiner, and controls the automatic emergency braking on the basis of a result of the detection performed by the detector. The calculator calculates each of a target deceleration rate and a variation rate. The target deceleration rate is a target value of a deceleration rate of the automatic emergency braking. The variation rate is a rate of variation in the deceleration rate required for the deceleration rate of the automatic emergency braking to reach the target deceleration rate. The determiner determines a contact risk of the vehicle with the operation target on the basis of the target deceleration rate. The calculator increases the variation rate when the contact risk is determined by the determiner as being relatively high.

A vehicle includes a rotationally movable actuating element and a sensor arrangement for measuring an actuating angle of the actuating element. The sensor arrangement has a measuring acceleration sensor which is fastened to the actuating element, and a reference acceleration sensor which is fastened immovably to the vehicle. A method for measuring the actuating angle of a rotationally movable actuating element in a vehicle, a measuring arrangement configured to carry out a method for measuring, a computer program product and a provision apparatus for the computer program product, are also provided.

A brake device for a vehicle includes: braking devices provided corresponding to right/left wheels, respectively, the braking devices being configured to generate braking forces by pressing forces according to a depression amount of a pedal; a wheel speed sensor configured to detect rotational speeds of the wheels; a pressing force sensor configured to detect the pressing forces; and a control device configured to control the braking force generating devices. The control device is configured to acquire the rotational speeds and the pressing forces in a state where the braking device is performing braking, specify deceleration, based on the acquired rotational speeds, and specify the loads that are supported by the wheels, based on the specified deceleration and the acquired pressing forces and controls the pressing forces corresponding to the right/left wheels such that a difference in deceleration between the right and left wheels becomes smaller, based on the loads.

A brake device for a vehicle includes: braking devices provided corresponding to right/left wheels, respectively, the braking devices being configured to generate braking forces by pressing forces according to a depression amount of a pedal; a wheel speed sensor configured to detect rotational speeds of the wheels; a pressing force sensor configured to detect the pressing forces; and a control device configured to control the braking force generating devices. The control device is configured to acquire the rotational speeds and the pressing forces in a state where the braking device is performing braking, specify deceleration, based on the acquired rotational speeds, and specify the loads that are supported by the wheels, based on the specified deceleration and the acquired pressing forces and controls the pressing forces corresponding to the right/left wheels such that a difference in deceleration between the right and left wheels becomes smaller, based on the loads.

A method ascertains a deceleration quantity of a brake system of a vehicle, the brake system having at least one brake and at least one additional brake. The method involves the steps of: providing a value of a manipulated variable applied by the brake system, the at least one brake being configured to produce a deceleration quantity in response to the value of the manipulated variable; ascertaining a braking effect that has been applied to the brake system and acts on the vehicle by way of the brake system in response to the manipulated variable; ascertaining a deceleration quantity of the at least one brake, the deceleration quantity corresponding to the value of the manipulated variable and being obtained on the basis of a manipulated variable, in particular taking into account vehicle parameters; and ascertaining a deceleration quantity of the at least one additional brake from the deceleration quantity of the at least one brake and the braking effect on the vehicle, in particular taking into account vehicle parameters.

A method for automatically adapting a traction control of a vehicle. The method includes: receiving current state variables of the vehicle, each of which indicates a current state of the vehicle; determining a control action using a traction controller based on the received current state variables, wherein the control action includes increasing, maintaining, or decreasing a control variable including a torque of a motor and/or a pressure of a brake cylinder; determining a control gradient of the control variable using a value matrix which includes a plurality of parameters each assigned to current value matrix state variables of the vehicle, wherein the control gradient is selected from the plurality of parameters as a function of the current value matrix state variables which include the current value matrix state variables; carrying out the traction control of the vehicle.

The invention relates to a method for performing a braking maneuver using a braking assistant (9) in a motor vehicle (3), wherein the braking assistant (9) initiates an automatic braking maneuver when a distance between the motor vehicle (3) and an object (5) located ahead of the motor vehicle (3) is less than a minimum distance a.sub.min, an acceleration signal of the decelerating vehicle (3) is ascertained, and if the acceleration signal is positive the braking maneuver initiated by the braking assistant (9) is automatically interrupted.

The invention relates to a method for performing a braking maneuver using a braking assistant (9) in a motor vehicle (3), wherein the braking assistant (9) initiates an automatic braking maneuver when a distance between the motor vehicle (3) and an object (5) located ahead of the motor vehicle (3) is less than a minimum distance a.sub.min, an acceleration signal of the decelerating vehicle (3) is ascertained, and if the acceleration signal is positive the braking maneuver initiated by the braking assistant (9) is automatically interrupted.

A system and method for operating a brake system of a vehicle including determining if the vehicle is stopped. Determining a current brake pressure, a braking deceleration and a dynamic brake pressure corresponding to the braking deceleration. Based on the current brake pressure and the dynamic brake pressure determining a differential brake pressure. A holding brake pressure for holding the vehicle is determined based on the differential brake pressure and operating the brake system with the holding brake pressure.