The present disclosure relates to a pedal simulator of a vehicle, and the pedal simulator of the vehicle includes a housing unit, a piston unit slidably mounted on the housing unit, a rotation unit rotatably coupled to the housing unit, and a first damper unit disposed in a plurality of rotation units and compressed by a pressure of the piston unit inside the housing unit.

A vehicle pedal sensor assembly for use in a vehicle brake pedal including a base and a pedal arm pivotally mounted to the pedal base. A sensor housing includes a non-contacting pedal position sensor and a contacting pedal force sensor. The sensor housing is mounted to the base of the vehicle brake pedal. A magnet is mounted to the pedal arm. The pedal position sensor senses a change in the magnitude and/or direction of the magnetic field generated by the magnet in response to a change in the position of the pedal arm for determining the position of the pedal arm. A pedal force application member exerts a force against the pedal force sensor in response to the change in the position of the pedal arm for determining the position of the pedal arm. The force sensor may be a piezoelectric element, a load cell, or a strain gauge.

A pressure control valve for a vehicle is provided. The pressure control valve for a vehicle includes: a valve body having an oil inlet part into which oil discharged from a wheel cylinder flows; a driving part installed in the valve body; a plunger connected to the driving part and movably installed inside the valve body; a valve seat disposed inside the valve body and having an oil passage part formed such that the oil flowing into the oil inlet part is supplied to an accumulator; a first elastic member installed to apply an elastic force to the plunger such that the plunger returns to an original position; an opening and closing member installed in the oil passage part to open the oil passage part when the opening and closing member is pressed by the plunger; and a second elastic member applying an elastic force to the opening and closing member such that the opening and closing member closes the oil passage part.

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.

A method for haptic feedback on a brake pedal of a motor vehicle. A current stability index describing the current driving situation is compared to a stored critical stability index. A haptic feedback is imprinted on the brake pedal of the motor vehicle when the ratio between the current stability index and the critical stability index exceeds a previously defined limit value.

A system includes a computer including a processor and a memory, the memory storing instructions executable by the processor to actuate a brake valve to drain a brake cylinder and then actuate the brake valve to isolate the brake cylinder and hold a brake pedal in a retracted position.

A fuel cell system mounted on a vehicle comprises a fuel cell; a secondary battery; a drive motor configured to serve as a motor to generate a driving force and as a generator to generate regenerative power; an auxiliary machine configured to consume the regenerative power; an accelerator pedal sensor; a shift position sensor; a vehicle speed sensor; and a controller. The controller determines that the vehicle is in a first state when the vehicle has a negative vehicle speed, a move forward request is given to the vehicle and an accelerator pedal is depressed or when the vehicle has a positive vehicle speed, the move backward request is given to the vehicle and the accelerator pedal is depressed. When a predetermined first condition including a condition that the vehicle is in the first state is satisfied, the controller performs an auxiliary machine consumption process that causes the auxiliary machine to consume the regenerative power that includes a required power for the drive motor calculated by using a depression amount of the accelerator pedal.

One embodiment provides a hydraulic pressure generating apparatus including: a base body; a master cylinder; and a stroke sensor, wherein a rear surface of the base body faces a brake operator, a bottomed-cylindrical-shaped first cylinder bore accommodating a first piston of the master cylinder is opened to the rear surface of the base body, and an input member connected to the brake operator is inserted in the first cylinder bore. The stroke sensor, plural solenoid valves and a control unit are attached to one surface of the base body, such that the stroke sensor and the solenoid valves are accommodated within a housing of the control unit. On the one surface, the stroke sensor is disposed adjacent to the rear surface of the base body, and the solenoid valves are disposed adjacent to a front surface of the base body.

Even when downstream stiffness in a brake hydraulic circuit changes due to variation in a caliper forming a part of a wheel cylinder, temperature, wear degree, and deterioration of a frictional pad, and/or the like, a brake control apparatus performs calculation processing for calculating a switching reference operation amount, switching operation amount deviation calculation processing for calculating a deviation from the switching reference operation amount, operation amount offset processing for offsetting a pedal operation amount detected by an operation amount detection unit, target hydraulic pressure calculation processing for calculating the target hydraulic pressure with use of the offset operation amount and a reference hydraulic characteristic, and control of the electric motor (21) according to the target hydraulic pressure. By this configuration, the brake control apparatus limits an excessive movement amount of a primary piston by changing the reference hydraulic characteristic according to the change in the downstream stiffness.

A method for operating a speed control system of a vehicle is provided. The method comprises identifying a torque required to achieve a desired operating parameter of the vehicle. The method further assessing whether the required torque exceeds a predetermined torque limit, and when it does, determining if it is appropriate to increase the torque limit. When it is determined that it is appropriate to do so, the method further comprises increasing the predetermined torque limit. A speed control system of a vehicle comprising an electronic control unit configured to: determine a torque required to achieve a desired operating parameter of the vehicle, assess whether the required torque exceeds a predetermined torque limit; when the torque exceeds the torque limit, determine if it is appropriate to increase the torque limit; and when it is determined that it is appropriate to do so, increase the torque limit, is also provided.