Method for controlling of at least two electric motors (230A, 230B) of an electric lift truck (200), each of the at least two electric motors (230A, 230B) controlled with a respective electrical drive (244A, 244B) and arranged to generate a torque to a respective drive wheel (210), the method comprising: generating a respective control signal to each of the respective electrical drive (244A, 244B) in response to a detection that a speed of the lift truck (200) is below a reference value and that a steering angle is within a reference range, the respective control signal carrying an speed orders (01, 02) for the each respective electrical drive (244A, 244B) for generating torques to the drive wheels (210). Aspects relating to a method, a control unit a computer program product and a lift truck are provided.

A brake pedal emulator for a brake-by-wire system of a vehicle extends and connects between a support structure and a brake pedal operatively engaged to the support structure. The brake pedal emulator includes a hydraulic cylinder having a magneto-rheological hydraulic fluid and an electrical element configured to carry an electrical current for controlling a viscosity of the magneto-rheological hydraulic fluid and thereby controlling a first force exerted by the hydraulic cylinder when actuated by the brake pedal.

A method for output of haptic information to a driver of a motor vehicle via a brake pedal includes ascertaining, based on signals of an environment-sensor system, imminence of a traffic situation that poses a potential risk to the motor vehicle, and modifying, during a driving of the motor vehicle, independent of a driver input, and in response to the ascertained imminence of the traffic situation, a characteristic of the brake pedal of the motor vehicle.

An electric brake device has at least three control units: a first diagonal wheel control unit that controls a front-left wheel brake mechanism and a rear-right wheel brake mechanism which are positioned diagonally; a second diagonal wheel control unit that controls a front-right wheel brake mechanism and a rear-left wheel brake mechanism which are positioned diagonally; and a front wheel control unit that controls a front-left wheel brake mechanism and a front-right wheel brake mechanism. Each of the brake mechanisms has a friction-receiving member that rotates together with the wheel; and a friction-applying member that moves while being powered by an electric actuator, and obtains the braking force by pressing the friction-applying member against the friction-receiving member.

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 braking device for a vehicle includes a plurality of braking force generators; a steering assist device; a yaw rate detecting unit; and a control device. The control device is configured to perform control such that, in a case where the plurality of braking force generators perform a braking operation and there is a malfunctioning braking force generator, braking forces of the plurality of braking force generators other than the malfunctioning braking force generator are maintained or increased when an acquired value of an actual yaw rate acquired from the yaw rate detecting unit is equal to or less than a reference value, and a steering torque is applied to a steering system in a direction in which the actual yaw rate decreases when the acquired value of the actual yaw rate is larger than the reference value.

Provided is an apparatus for sensing a displacement of a brake pedal, the apparatus including: a shaft extending parallel to a movement direction of a piston of a master cylinder displaced by an operation of the brake pedal; a magnet supported by the shaft; a mounting member configured to couple the piston and the shaft; and a sensor configured to detect a change in magnetic force by the magnet, wherein the shaft and the magnet are accommodated in a shaft bore formed through or formed to be recessed in a hydraulic block including a plurality of passages and valves which control flow of a pressing medium, and the shaft bore communicates with a cylinder bore formed in the hydraulic block and receiving the piston.

According to an embodiment, a braking apparatus for a vehicle is advantageous in that this secures the reliability and backup brake performance of a pedal stroke sensor, so that it is possible to prevent a problem in which the brake performance of the vehicle has an error while the vehicle is driving.

Provided is an electronic brake system including: a reservoir in which a pressurizing medium is stored; a master cylinder configured to discharge the pressurizing medium according to a pedal effort of a brake pedal; a hydraulic pressure supply device configured to operate a hydraulic piston according to an electrical signal output in response to a displacement of the brake pedal to generate a hydraulic pressure; a hydraulic control unit connected to the hydraulic pressure supply device and configured to control a flow of the hydraulic pressure transferred to a wheel cylinder; a pedal simulator connected to the master cylinder and configured to provide a reaction force for the brake pedal; a simulator valve configured to open and close a flow path connecting the master cylinder and the pedal simulator; a cut valve configured to open and close a flow path connecting the master cylinder and the hydraulic control unit; a pedal displacement sensor configured to detect displacement information of the brake pedal; a pressure sensor configured to detect pressure information of the pedal simulator; and a controller configured to compensate for a target pressure according to the displacement of the brake pedal based on the displacement information of the brake pedal detected through the pedal displacement sensor and the pressure information of the pedal simulator detected through the pressure sensor when the cut valve is closed and the simulator valve is opened, and drive the hydraulic pressure supply device according to the compensated target pressure.

A displacement sensor includes a resistive element and a wiper element. The wiper element is separated from the resistive element in a parked mode the wiper element is in sliding electrical contact with the resistive element in a sensing mode. A user input interface may be coupled to at least one of the resistive element and the wiper element, wherein whether the displacement sensor is in the parked mode or the sensing mode is dependent on actuation of the user input interface.