CN214450873U

CN214450873U - Electronic parking control system

Info

Publication number: CN214450873U
Application number: CN202120651142.XU
Authority: CN
Inventors: 叶扬波; 丁勇; 刘姿玚
Original assignee: Shanghai Huizhong Automotive Manufacturing Co Ltd
Current assignee: Shanghai Huizhong Automotive Manufacturing Co Ltd
Priority date: 2021-03-30
Filing date: 2021-03-30
Publication date: 2021-10-22
Anticipated expiration: 2031-03-30

Abstract

The utility model relates to an electron parking control system. The electronic parking control system is suitable for automobiles, and the automobiles comprise a complete automobile VCU, a storage battery, brake calipers and an EPB/EPBi/ESC relevant controller. The electronic parking control system mainly comprises a main control MCU module, a relay module, a pre-drive module and an H-bridge module, wherein the main control MCU module is used for receiving instructions sent by a VCU of the whole vehicle. The utility model provides an electron parking control system, whole circuit is compact, plays the purpose of backup parking, can effectively promote the parking performance.

Description

Electronic parking control system

Technical Field

The utility model relates to a motor vehicle braking system control technical field especially relates to an electron parking control system.

Background

The national standard GB21670 states that a parking brake system equipped with an electronic control transmission device can still perform parking braking from a driving position and keep a fully loaded vehicle stationary on 8% of up and down ramps when the electronic control transmission is internal or external (except for the power supply line) or the control device fails. For this reason, conventional automobiles are equipped with a P-range lock mechanism to park by locking a transmission, and as automobiles develop, more and more automobiles are developed in a direction of canceling the P-range lock from the viewpoint of practical application and cost, so that a new technology or system for backing up the P-range lock has practical application value and significance.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem of prior art, the utility model provides an electron parking control system, whole circuit is compact, plays the purpose of backup parking, can effectively promote the parking performance.

Specifically, the utility model provides an electron parking control system is applicable to the car, the car includes whole car VCU, battery, brake caliper and EPB EPBi ESC relevant controller, electron parking control system includes:

the main control MCU module is used for receiving an instruction sent by the VCU of the whole vehicle;

the relay module is electrically connected with the brake calipers and is connected with the master control MCU module, and the EPB/EPBi/ESC related controller controls the brake calipers to act through the relay module;

the pre-driving module is connected with the relay module through the H bridge module and electrically connected with the main control MCU module, and the pre-driving module receives an instruction of the main control MCU module to control the H bridge module so as to control the brake caliper to act through the relay module.

According to the utility model discloses an embodiment still includes CAN communication module, the master control MCU module passes through CAN communication module with the whole car VCU of car keeps communicating.

According to the utility model discloses an embodiment, still include power module, with the battery is connected, power module to master control MCU module, relay module, drive module and H bridge module power supply in advance.

According to the utility model discloses an embodiment, power module to master control MCU module provides 3.3V's mains voltage.

According to an embodiment of the invention, the MGU motors of the EPB/EPBi/ESC related controller and the brake calipers are connected to the normally closed contacts of the relay module.

According to an embodiment of the present invention, the output contact of the relay module is electrically connected to the MGU motor of the brake caliper.

According to an embodiment of the present invention, the H-bridge module is electrically connected to the normally open contact of the relay module.

According to an embodiment of the utility model, whole car VCU and EPB/EPBi/ESC relevant controller keep communicating for transmit parking signal.

The utility model provides a pair of electron parking control system plays backup parking control through setting up master control MCU module, relay module, driving module and H bridge module in advance, and whole circuit is compact, can effectively promote the parking performance.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

fig. 1 shows a schematic structural diagram of an electronic parking control system according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

electronic parking control system 100 main control MCU module 101

Relay module 102 pre-driver module 103

H-bridge module 104 whole vehicle VCU105

Battery 106 brake caliper 107

EPB/EPBi/ESC correlation controller 108CAN communication module 109

Power supply module 110

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may also be oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

Fig. 1 shows a schematic structural diagram of an electronic parking control system according to an embodiment of the present invention. As shown in the figure, an electronic parking control system 100 for an automobile mainly includes a main control MCU module 101, a relay module 102, a pre-driver module 103, and an H-bridge module 104. The automobile comprises a whole VCU105, a storage battery 106, a brake caliper 107 and an EPB/EPBi/ESC related controller 108.

Further, the main control MCU module 101 is configured to receive an instruction sent by the complete vehicle VCU 105. The main control MCU module 101 plays a role in logic judgment and control in the electronic parking control system 100

The relay module 102 is electrically connected to the brake caliper 107. The relay module 102 is also connected with the main control MCU module 101. The EPB/EPBi/ESC related controller 108 is used to control the brake caliper 107 action through the relay module 102. The brake caliper 107 embraces the wheel hub of the vehicle to generate brake control.

The pre-driver module 103 is connected to the relay module 102 via the H-bridge module 104. The pre-drive module 103 is electrically connected with the main control MCU module 101. The pre-driver module 103 receives an instruction from the main control MCU module 101 to control the H-bridge module 104. The pre-driver module 103 triggers the relay module 102 via the H-bridge module 104 to actuate the brake caliper 107.

Preferably, the electronic parking control system 100 further includes a CAN communication module 109. The CAN communication module 109 is connected with an external whole VCU105 through a connector, that is, the main control MCU module 101 keeps communicating with the whole VCU105 of the automobile through the CAN communication module 109.

Preferably, the electronic parking control system 100 further includes a power module 110. The power module 110 is connected to the external battery 106 through a connector. The power supply module 110 supplies power to the main control MCU module 101, the relay module 102, the pre-driver module 103, and the H-bridge module 104. Preferably, the power supply module 110 provides a power supply voltage of 3.3V to the master MCU module 101.

Preferably, the EPB/EPBi/ESC related controller 108 and the MGU motor of the brake caliper 107 are connected to the normally closed contacts of the relay module 102. Under the conventional condition, the EPB/EPBi/ESC related controller 108 receives a parking signal and triggers the MGU motor of the brake caliper 107 to act through the normally closed contact of the relay module 102, so that the parking effect is achieved.

Preferably, the output contacts of the relay module 102 are electrically connected to the MGU motor of the brake caliper 107. More preferably, the H-bridge module 104 is electrically connected to the normally open contacts of the relay module 102. After the main control MCU module 101 receives a parking signal sent by the VCU105 of the whole vehicle, the command relay module 102 is switched from a normally closed contact to a normally open contact. The main control MCU module 101 then controls the H-bridge module 104 through the pre-driver module 103, and further controls the brake caliper 107 to operate through the normally open contact of the relay module 102, thereby achieving the parking effect.

Preferably, the entire VCU105 and the EPB/EPBi/ESC associated controller 108 are in communication for communicating a park signal.

In normal mode, the EPB/EPBi/ESC related controller 108 maintains communication with the entire vehicle VCU 105. When the parking signal is received, the brake caliper 107 is controlled to act through the relay module 102. In fact, in this normal mode, the master MCU module 101 is in a sleep state. The EPB/EPBi/ESC related controller 108 triggers the MGU motor of the brake caliper 107 to act through the normally closed contact of the relay module 102, so that the parking effect is achieved.

And when the EPB/EPBi/ESC related controller 108 fails, the parking function is lost. The main control MCU module 101 enters a working state, and the main control MCU module 101 receives a parking signal sent by the VCU105 of the whole vehicle. The master control MCU module 101 instructs the relay module 102 to toggle from a normally closed contact to a normally open contact. The pre-driver module 103 receives an instruction of the main control MCU module 101 to control the H-bridge module 104, and then controls the brake caliper 107 to operate through the relay module 102.

It should be noted that the brake caliper 107 may be a left caliper or a right caliper, because the one-way clamping can satisfy the requirement of making the vehicle stationary on 8% slope, thereby achieving the purpose of P-gear backup parking.

The utility model provides an electron parking control system is under the prerequisite that does not need any change of EPB EPBi ESC relevant controller, when braking parking controller became invalid, and electron parking control system received the signal that whole car VCU sent and carries out parking control, can satisfy and make the vehicle static on 8%'s the slope, provides a new technical scheme for canceling traditional P shelves lock. Compared with other schemes in the prior art, the method has the advantages of low cost, simple circuit structure and the like.

It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims

1. The utility model provides an electron parking control system, is applicable to the car, the car includes whole car VCU, battery, brake caliper and EPB/EPBi/ESC relevant controller, its characterized in that, electron parking control system includes:

2. The electronic parking control system of claim 1, further comprising a CAN communication module, wherein the master MCU module is in communication with the vehicle VCU of the vehicle through the CAN communication module.

3. The electronic parking control system of claim 1, further comprising a power module connected to the battery, the power module supplying power to the main control MCU module, the relay module, the pre-driver module, and the H-bridge module.

4. The electronic parking control system of claim 3, wherein the power supply module provides a supply voltage of 3.3V to the master MCU module.

5. The electronic parking control system of claim 1, wherein the EPB/EPBi/ESC related controller and the MGU motor of the brake caliper are connected to the normally closed contacts of the relay module.

6. The electronic parking control system of claim 5, wherein the output contacts of the relay module are electrically connected with the MGU motor of the brake caliper.

7. The electronic parking control system of claim 1, wherein the H-bridge module is electrically connected with the normally open contacts of the relay module.

8. The electronic parking control system of claim 1 wherein the full vehicle VCU and EPB/EPBi/ESC associated controllers communicate for transmitting a parking signal.