A method for determining a braking distance of a vehicle, wherein a coefficient of friction (COF)actual between a brake lining and a brake disc is calculated as a function of a tensioning force Fd, a vehicle velocity V and a temperature of the frictional layer Tdisc, wherein the temperature of the frictional layer Tdisc is updated dynamically on the basis of the coefficient of friction COFactual in order to calculate a braking distance which approaches reality.

An automatic deceleration control device includes an electronic control unit including a central processing unit, the electronic control unit configured to: acquire road-type information that is information about a type of a road on which a vehicle is traveling; set a maximum deceleration based on the road-type information; and output a signal to decelerate the vehicle at a first deceleration that is equal to or lower than the maximum deceleration, when an actual vehicle speed of the vehicle exceeds a target vehicle speed of the vehicle.

An automatic deceleration control device includes an electronic control unit including a central processing unit, the electronic control unit configured to: acquire road-type information that is information about a type of a road on which a vehicle is traveling; set a maximum deceleration based on the road-type information; and output a signal to decelerate the vehicle at a first deceleration that is equal to or lower than the maximum deceleration, when an actual vehicle speed of the vehicle exceeds a target vehicle speed of the vehicle.

A vehicle hill descent control system and method for controlling a vehicle during a hill descent receives inputs from an accelerator pedal position sensor and a brake pedal sensor. The method controls the engine drivetrain system to engine idling and controls the braking control system to maintain vehicle speed by increasing braking torque to minimize or offset a vehicle speed increase due to gravity. In vehicle hill descent mode, when a vehicle user actuates the accelerator pedal, the engine idling does not change. Instead, the electronic control unit operates to decrease braking torque so the vehicle speed is increased.

A vehicle hill descent control system and method for controlling a vehicle during a hill descent receives inputs from an accelerator pedal position sensor and a brake pedal sensor. The method controls the engine drivetrain system to engine idling and controls the braking control system to maintain vehicle speed by increasing braking torque to minimize or offset a vehicle speed increase due to gravity. In vehicle hill descent mode, when a vehicle user actuates the accelerator pedal, the engine idling does not change. Instead, the electronic control unit operates to decrease braking torque so the vehicle speed is increased.

The present invention refers to a brake assist system (1) for cyclist on a bicycle (100) including a braking system (101) having a braking member (105) capable of exerting a braking force (F.sub.B) on a front wheel (101) of the bicycle (100) by the effect of a force (F.sub.c) applied by the cyclist on a lever (103). The system (1) includes a sensor (2) for measuring the angular speed (ω.sub.1) of the front wheel (101) of the bicycle (100); an actuator (3) capable of exerting an actuator force (F.sub.A), connectable to said braking system of the bicycle so that the actuator force (F.sub.A) opposes the force (F.sub.c) applied by the cyclist on the lever (103), in order to reduce the braking force (F.sub.B); and a control module (4) configured for receiving, as an input, the signal representative of the angular speed (ω.sub.1) of the front wheel (101) and for determining from this a deceleration (η) of the front wheel (101).

The present invention refers to a brake assist system (1) for cyclist on a bicycle (100) including a braking system (101) having a braking member (105) capable of exerting a braking force (F.sub.B) on a front wheel (101) of the bicycle (100) by the effect of a force (F.sub.c) applied by the cyclist on a lever (103). The system (1) includes a sensor (2) for measuring the angular speed (ω.sub.1) of the front wheel (101) of the bicycle (100); an actuator (3) capable of exerting an actuator force (F.sub.A), connectable to said braking system of the bicycle so that the actuator force (F.sub.A) opposes the force (F.sub.c) applied by the cyclist on the lever (103), in order to reduce the braking force (F.sub.B); and a control module (4) configured for receiving, as an input, the signal representative of the angular speed (ω.sub.1) of the front wheel (101) and for determining from this a deceleration (η) of the front wheel (101).

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 brake system includes an electromechanical brake having a friction surface, a lining support, an electric motor for moving the lining support, a spring acting on the lining support, and a control and monitoring unit. A control and monitoring unit ascertains from at least one first value ascertained during a first movement of the lining support by the electric motor, an operating behavior value for a real operating behavior of an operating parameter of the relevant brake, and ascertains, by a comparison of the at least one real operating behavior value to at least one stored operating behavior expectation, a correction factor. The brake control system corrects by the one correction factor and activates a regulator of the electric motor using the corrected brake control signal. The control and monitoring unit is performs a calibration by a spring force of the at least one spring during the first movement.