The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 2012
Filed:
Nov. 02, 2007
Jongsung Kim, Seoul, KR;
Jongsung Kim, Seoul, KR;
Hyundai Mobis Co., Ltd., Seoul, KR;
Abstract
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.