| Patent application number | Description | Published |
|---|
| 20080314695 | SINGLE MOTOR ELECTRO WEDGE BRAKE SYSTEM USING SOLENOID MECHANISM FOR IMPLEMENTING ADDITIONAL FUNCTIONS - The present invention provides an electro wedge brake (EWB) system that implements a main braking function by using power generated by one motor. Further, the electro wedge brake system implements various additional functions such as a function for maintaining a set clearance of a pad, a Fail-Safe function, and an EPB function, by using that the forward movement of a push rod shaft screwed using a NSL (Non-Self Locking) type screw is restrained or released on the basis of ON/OFF control of the solenoid mechanism interlocked with the main braking function motor. Accordingly, since only one motor is used to generate power, it is possible to reduce the number of parts and to simplify the structure. | 12-25-2008 |
| 20090065311 | SINGLE MOTOR ELECTRONIC WEDGE BRAKE SYSTEM GENERATING SOLENOID ASSISTING FORCE - While driving one motor, an electronic wedge brake (EWB) system according to an embodiment of the present invention implements a main braking function by self-energizing caused by a wedge operation. Since only one motor is used, it is possible to reduce the number of parts and to simplify the structure. Further, the electronic wedge brake system implements various functions, such as a function for maintaining a set clearance of a pad, a Fail-Safe function, and an EPB function by using a solenoid interlocked with the NSL (Non-Self Locking) type screw that moves in the axial direction. When the electronic wedge brake system is operated, an axial reaction force transmitted from the pad is dispersed using a frictional force caused by a NSL (Non-Self Locking) type push rod shaft, which reduces a load of a solenoid which constrains a push rod shaft. As a result, a low-performance solenoid may be used. | 03-12-2009 |
| 20100147633 | BRAKE SYSTEM - A brake system of the present invention is a dual braking system, which includes an ECU that controls parts for braking when a brake pedal is operated, a main brake that is controlled by ECU by locking a wheel disc for braking in normal braking, and a sub-brake that is mounted on the wheel disc and achieves sub-braking function to achieve emergency braking for safety by locking the wheel disc by control of ECU that has detects failure of main brake. Therefore, it is possible to improve safety by achieving emergency braking while achieving F-S (Fail-Safe), when the motor of main brake fails. Further, it is possible to also achieve stable FR (Failure Rate) in an EWB or an EMB that is practically applied to a vehicle, as in a hydraulic brake system, and to expedite common use of brake systems where a BBW (Brake By Wire) technology, such as EMB and EWB, is applied. | 06-17-2010 |
| 20100147637 | SAFETY BRAKING DEVICE OF VEHICLE - A brake apparatus includes a motor-based braking unit driven by control of an ECU and equipped with a BIR operating unit, that is, a BIR-equipped braking unit having a BIR (Ball In Ramp) function of generating straight movement force using changes in path of balls disposed between ramps rotating, such that it can achieve F-S (Fail-Safe) and generate emergency braking force for safety by operating the BIR operating unit using a pedal-coupled cable only by operating a brake pedal even if a motor of the motor-based braking unit fails. | 06-17-2010 |
| 20100148571 | REGENERATIVE BRAKING ACTUATOR APPARATUS - An actuator apparatus includes a booster creating an infinite boost ratio while a plunger valve does not contact with a reaction disc, and an oil reservoir and a pedal simulator unit forming a hydraulic circuit to follow hydraulic hysteresis characteristics. Therefore, it is possible to achieve insensibility of pedal changes transmitted from a master cylinder, minimize changes in pedal feel according to changes of pedal effort correspondingly generated, while blocking vibration transmitted to the pedal when achieving regenerative braking, and provide pedal feel following or simulating the hydraulic hysteresis characteristics. | 06-17-2010 |
| 20110056776 | ELECTRONIC WEDGE BRAKE APPARATUS - The present invention makes it possible to increase safety of parts and ensure durability and smooth operability in braking by increasing axial stiffness of a motor while keeping the spring effect of connecting springs driving an upper wedge with force from the motor. | 03-10-2011 |
| 20110139554 | BRAKE SYSTEM OF VEHICLE - A brake device includes a brake pad movable toward a brake disc and configured to contact the brake disc, and an EWB device comprising a wedge and an actuator configured to push the wedge. The wedge is configured to push the brake pad when the actuator pushes the wedge. The device has a hydraulic cylinder comprising a piston coupled to and configured to push the EWB device. The wedge is configured to push the brake pad without operation of the actuator when the piston pushes the EWB device such that the brake pad can move toward the brake disc. | 06-16-2011 |
