Electronic control pressure-maintaining mechanism of electronic mechanical brake and implementation method thereof

A braking motor and electronic control technology, applied in the direction of braking actuators, brakes, mechanical equipment, etc., can solve problems such as affecting the life of the motor, and achieve the effects of saving maintenance, fast timeliness, and increasing service life.

Active Publication Date: 2013-04-10
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the structure of EMB is similar to that of ordinary disc brakes currently used in automobiles, except that the actuating force of the brake caliper is not generated by hydraulic pressure, but is directly driven by the motor through the transmission device to generate braking force. The brake motor needs Non-stop forward and reverse, directly affect the life of the motor

Method used

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  • Electronic control pressure-maintaining mechanism of electronic mechanical brake and implementation method thereof
  • Electronic control pressure-maintaining mechanism of electronic mechanical brake and implementation method thereof
  • Electronic control pressure-maintaining mechanism of electronic mechanical brake and implementation method thereof

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Embodiment Construction

[0029] An electronically controlled pressure maintaining mechanism for an electromechanical brake proposed by the present invention and its implementation method will be described in detail below with reference to the accompanying drawings.

[0030] During the service braking process, when the ECU detects that the pedal displacement has changed within a certain range for a period of time, the system can determine that it needs to enter the pressure holding stage. At this time, the small motor rotates forward, and the threaded brushed motor mandrel rotates, pushing the self-locking nut and the hobbing slider to move forward in a straight line, so that the hobbing slider and the hobbing gear are occluded and locked. After the electronically controlled pressure holding is completed, the brake motor stops working, so that the brake will be braked with a constant braking force during the entire braking process. When it is necessary to end the constant braking force, as long as the ...

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Abstract

The invention relates to an electronic mechanical brake, an electronic control pressure-maintaining mechanism thereof and a pressure-maintaining method. The electronic control pressure-maintaining mechanism comprises a motor, a self-locking nut and a gear hobbing sliding block, wherein the motor is connected with the self-locking nut; the self-locking nut is driven to move forward and backward respectively through forward rotation and reverse rotation of the motor; the gear hobbing sliding block is fixed on the self-locking nut and moves along with the movement of the nut; and the gear hobbing sliding block is provided with an occlusion device which is used for being mutually occluded and locked with an occlusion device of a brake motor.

Description

technical field [0001] The invention relates to the field of automotive brake-by-wire, in particular to an electronically controlled pressure-maintaining mechanism for an electromechanical brake and a realization method. Background technique [0002] Since the 1990s, some well-known manufacturers of automotive electronic components, such as Germany's Bosh, Siemens and Centinental Teves, have successively started research on EMB, and have done some corresponding system simulation and loading tests. In addition, Eaton, Allied, Signal, Delphi, Varity Lucas, and Hayes also participated in the R&D competition of EMB. However, domestic research on this project is basically blank. Only Tsinghua University has studied the EMB test bed, and Tongji University has trial-produced a prototype; other universities have only carried out some related preliminary research, and some core technologies have not yet been broken through. However, the present invention proposes the design of the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/74F16D65/18F16D121/24
Inventor 高国兴王国业李元
Owner CHERY AUTOMOBILE CO LTD
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