Patent classifications
B60T8/4086
Vehicle brake pedal with pedal resistance assembly and force/position sensor
A brake pedal assembly comprising a pedal and a pedal resistance force member operably coupled to the pedal. A damper pedal resistance force module defines an interior fluid-filled cavity. A shaft extends through the damper module and includes a piston mounted thereon and moveable through the fluid-filled cavity to generate a damper resistance force. A spring pedal resistance force module is adapted to generate a spring pedal resistance force. A pedal force sensing module is mounted to the pedal resistance force member. A pedal position sensor is mounted to the pedal resistance force member. A pedal force sensor is mounted to the pedal resistance force member.
ELECTRIC BRAKE SYSTEM AND CONTROL METHOD THEREOF
Disclosed herein is an electronic brake system and a method for controlling the same are disclosed. The electronic brake system includes a master cylinder for discharging oil according to displacement of a brake pedal, a pedal displacement sensor sensing brake pedal displacement, a simulation apparatus providing pedal pressure responsive to the sensed pedal displacement, a hydraulic pressure supply unit for generating hydraulic pressure using a motor that operates based on the sensed pedal displacement, a hydraulic circuit for supplying the hydraulic pressure generated from the hydraulic pressure supply unit to the caliper, a cut valve positioned between the master cylinder and the hydraulic circuit for transmitting or blocking the hydraulic pressure discharged from the master cylinder, and a controller for blocking at least one of the cut valve and braking control with a target pressure according to a pressure in the simulation apparatus when the simulation apparatus fails.
Electrohydraulic Braking Method for Mobile Working Machines and a Brake Function Arrangement
An electrohydraulic braking method for mobile working machines, in particular agricultural machines, is disclosed. The method is designed to detect external signals and to transmit them to a control unit, in which the signals are processed and based on which at least one target braking pressure is determined. In a next step, a valve flow is calculated on the basis of the target brake pressures, which valve flow is transmitted to a control valve of a brake actuation pedal, resulting in a braking pressure in a hydraulic circuit of the agricultural machine and the adjustment of brake steering. The disclosure further relates to a brake function arrangement designed to perform the electrohydraulic braking method.
Electronic brake system and operation method thereof
The present disclosure relates to an electronic brake system. The electronic brake system includes a reservoir in which a pressurized medium is stored, an integrated master cylinder including a master chamber and a simulation chamber, a reservoir flow path communicating the integrated master cylinder with the reservoir, a hydraulic pressure supply device provided to generate a hydraulic pressure by operating the hydraulic piston according to an electrical signal output in response to a displacement of the brake pedal, a hydraulic control unit including a first hydraulic circuit provided to control the hydraulic pressure transferred to two wheel cylinders and a second hydraulic circuit provided to control the hydraulic pressure transferred to the other two wheel cylinders, and an electronic control unit provided to control valves based on hydraulic pressure information and displacement information of the brake pedal.
PARKING BRAKE EMULATOR
A parking brake emulator assembly for a vehicle is provided. The emulator assembly includes a mounting bracket. The mounting bracket includes a front spring mounting flange with a spring mounting hole. The emulator assembly further includes a brake lever, a spring guiding rod, a spring, and a rear spring holder. The brake lever is rotatable relative to the mounting bracket into a neutral position and a brake application position. The spring guiding rod is coupled to the brake lever via a pinned connection, and extends through the spring and the rear spring holder. Rotation of the brake lever from the neutral position to the brake application position moves the pinned connection to thereby move the spring guiding rod and the rear spring holder towards the front spring mounting flange, thereby compressing the spring.
Electrohydraulic vehicle brake system having an electromechanical actuator and method for operating the brake system
An electrohydraulic vehicle brake system includes an electromechanical actuator for actuating at least one hydraulic piston to build hydraulic pressure at wheel brakes. The brake system provides a set of electrically activatable valve arrangements having a first valve arrangement between a cylinder accommodating the at least one hydraulic piston and each of the wheel brakes, and at least one second valve arrangement between a receptacle device for hydraulic fluid and at least one of the wheel brakes. The second valve arrangement is provided in parallel with the first valve arrangement which is associated with the same wheel brake as the second valve arrangement. A control device or system activates the first valve arrangements and the electromechanical actuator, in order to build up a hydraulic pressure at at least one of the wheel brakes and via the opened first valve arrangement associated with that wheel brake and to reduce a built-up hydraulic pressure via the opened first valve arrangement. The activation of the first valve arrangements can take place in a time multiplex operation.
BRAKING SYSTEM FOR A MOTOR VEHICLE
A braking system for a motor vehicle comprises a first and second electrically controllable pressure source for providing a brake pressure for actuating the wheel brakes. An electrically controllable pressure modulation device sets brake pressures that are individual to each of the wheel brakes, said device having electrically actuatable inlet valves and outlet valves for each wheel brake. The second pressure source comprises a motor-pump unit and at least one low-pressure accumulator. The low-pressure accumulator is connected to an output connection of at least one outlet valve. A first and a second energy supply unit for the braking system are independent from one another. The first energy supply unit supplies the first pressure source with energy. The second energy supply unit supplies the second pressure source with energy. The pressure modulation device is supplied with energy by the first energy supply unit and by the second energy supply unit.
BRAKE SYSTEM WITH TWO PRESSURE SOURCES, AND TWO METHODS FOR OPERATING A BRAKE SYSTEM
A brake system, including four hydraulically actuatable wheel brakes. Each wheel brake is assigned in each case one outlet valve which is closed when electrically deenergized. Each wheel brake is assigned in each case one inlet valve which is open when electrically deenergized. The brake system furthermore includes a simulator which is actuatable by a brake pedal, wherein two pressure provision devices are provided for actively building up pressure in the wheel brakes, two brake circuits are hydraulically formed, wherein, in each brake circuit, in each case one pressure provision device is hydraulically connected to two wheel brakes, and wherein two separate on-board electrical systems are provided, and wherein each pressure provision device is fed in each case by one of the two on-board electrical systems.
BRAKE SYSTEM FOR VEHICLE
A brake system for a vehicle is provided to independently adjust a braking pressure of each wheel. The system includes a hydraulic pressure brake driven by two actuators and a sub-cylinder and valve configurations that are disposed in the peripheral flow path thereof to eliminate the pressure unbalance generated in the hydraulic pressure brake.
BRAKING DEVICE HAVING A SIMULATOR UNIT
The invention relates to a brake device (100) for a hydraulic vehicle brake system, comprising at least one simulator unit (1) for generating a counterforce (G) which acts counter to an actuating force (B) and which is fed back to an actuating member (2) of the brake device (100), having at least one hydraulically actuated simulator piston (4), which is axially displaceable in a piston bore (3), and having at least one sealing element (5) for sealing off the simulator piston (4) in the piston bore (3). In order to be able to produce brake devices with different simulator characteristics at lower cost and more efficiently, it is proposed according to the invention that the sealing element (5) is fastened to the simulator piston (4), and slides on a lateral surface (6) of the piston bore (3) when the simulator piston (4) is actuated.