CN118254918A - Electric control brake master cylinder - Google Patents

Abstract

An electric control brake master cylinder is arranged on a vehicle with an oil pressure brake system and is positioned at least one grip and provided with a brake master cylinder group and a power group, the brake master cylinder group is provided with a main shell, an oil-way piston group and a brake handle, the main shell is fixedly combined with the grip, the oil-way piston group is arranged on the main shell and is provided with a piston, the brake handle is rotationally combined with the main shell and is positioned at one side of the grip, the power group is combined with the brake master cylinder group and is fixedly arranged on the main shell, the power group generates a rotary power after being driven by electric power, so that the piston generates linear motion, and the piston can be pushed to brake by pressing the brake handle or by the rotary motion of the power group.

Description

Electric control brake master cylinder

Technical Field

The invention relates to a braking device applied to a small-sized vehicle with an oil pressure braking system, in particular to an electric control brake master cylinder which saves cost, has simple electric control braking system architecture, is easy to install and saves space.

Background

With the development of technology and the importance and requirements of vehicle driving safety, four-wheel vehicles on the market are mostly equipped with electric control brake systems for assisting or assisting in braking, and the electric control brake systems for four-wheel vehicles are gradually applied to heavy locomotives, such as advanced rider-assisted driving systems (ADVANCED RIDER ASSISTANCE SYSTEMS; ARAS), active distance-adjusting cruise systems (Adaptive Cruise Control; ACC), blind spot detection (Blind Spot Detection; BSD), front collision early warning systems (Forward Collision Warning; FCW), and the like, and meanwhile, the grade of active safety protection such as slope assistance (HILL START ASSIST; HSA) and emergency brake warning is adopted, so that various locomotive factories at present want to develop electric control brake systems, and most of the advanced rider-assisted driving systems for BOSCH are carried, thereby improving the safety of heavy locomotives in driving; and from 2015 to 2025, heavy locomotives with Advanced Rider Assistance Systems (ARAS) worldwide, whether in number or in yield, have been shown to be multi-headed upwards through market adjustment statistics and prediction, and the ARAS of heavy locomotives also comprises an electric control brake system; it is known that the present electrically controlled braking system has been developed from four-wheeled vehicles to heavy locomotives, and the future trend is likely to be popular in other vehicles, such as vehicles with grips and hydraulic braking systems, e.g. electric locomotives, electric bicycles, fuel locomotives, heavy vehicles, electric tricycles, fuel tricycles, beach vehicles, agricultural vehicles, electric scooter, self-propelled delivery vehicles or mobile robots (if classified by the number of wheels, two-wheeled vehicles, tricycles and four-wheeled vehicles), and the vehicles used in the following are simply referred to as small vehicles.

Further, electric control elements which are commercially available at present and can be used for controlling an electric control brake system of a small vehicle, such as an electro-hydraulic automatic actuator of China patent No. 111295315 and an electric hydraulic power vehicle brake device of China patent No. 109760655 which applies the automatic actuator, are a brake system which can be fully self-driven and can be applied to four-wheel vehicles and locomotives, the automatic actuator is provided with a motor, a speed reducer, a screw and two brake master cylinder pistons, when in use, the screw is linked to move linearly through the rotation power of the motor and the speed reducer, and one of the brake master cylinder pistons is pushed to move relatively, and meanwhile hydraulic oil is linked to the other brake master cylinder piston, so that hydraulic oil flows in a pipeline to further provide a braking effect, however, the automatic actuator can generate pressure rapidly, and two brake master cylinder pistons are required to be configured for use, the operation mode of the mechanism needs to convert rotary motion into linear motion and then sequentially push the two brake master cylinders, further explaining that the motor (power source) drives the speed reducer to move, namely rotary motion, then the rotary screw drives one brake master cylinder piston to move forward, namely linear motion, and the linear motion needs to be applied to the screw or the ball screw, and the cost of using the elements (the design of rotary motion plus linear motion) is higher than that of using only rotary motion, and the mechanical efficiency is poor because more components of rotary motion plus linear motion are used, and the energy consumption is better than that of using only rotary motion mechanism, and furthermore, the volume required by setting the components of rotary motion plus linear motion is larger than that required by using only rotary motion, therefore, there is a need for a sufficient space for installing the required rotary and linear motion components, however, if installed on a locomotive, the problem of limitation of the internal space of the locomotive is considered; in addition, most of the electric control brake elements used in automobiles, such as i-boost, push the master cylinder in a manner of rotating and linear motion.

Disclosure of Invention

In order to lay out and develop the electric control brake system market of future small vehicles, a necessary electric control element for realizing brake electric control is needed to control the change of the oil pressure value output by the master cylinder, thus the invention is conceived, therefore, the invention aims to produce an electric control element which accords with the requirement of the development and the addition of the electric control brake system of the current small vehicles, improve the operation mode of the current commercial electric control element (the rotation motion plus the linear motion to push the master cylinder) in a mode of directly rotating and pushing the master cylinder, and keep the function of the traditional manual brake.

Furthermore, the electric control brake master cylinder can be integrated on small vehicles such as electric locomotives, electric bicycles, fuel locomotives, heavy machines, electric tricycles, fuel tricycles, beach vehicles, agricultural vehicles, electric scooter, self-driven delivery small vehicles or movable robots and the like for use, so that functions of slope assistance (HSA), braking force assistance, an active vehicle distance adjusting cruise system (ACC), active braking (Autonomous Emergency Braking; AEB), self-driving electric control braking and the like are realized, and a linkage type brake system (Combination Braking System; CBS) can be matched, so that the electric control brake master cylinder can be used for controlling the front wheel and the rear wheel of the small vehicles in proportion (namely, the electric control brake master cylinder replaces the left master cylinder of the small vehicles) and can retain the original brake system design of the small vehicles without redevelopment, the development cost and time are greatly reduced, and the practicability of the electric control brake master cylinder is effectively improved.

Furthermore, the electric control brake master cylinder can retain the manual brake function of the small-sized vehicle when in use, and can cooperate with active braking and slope starting to have the electric control brake function, so that the small-sized vehicle has the functions of manual braking and electric control braking, the defect of manual braking can be effectively compensated, the function of manual braking can not be influenced when the electric control braking fails, and the electric control brake master cylinder can be used only by replacing one of the master cylinders of the existing small-sized vehicle with the electric control brake master cylinder of the invention when in assembly, thereby providing the electric control brake master cylinder which saves cost, has simple electric control brake system structure and is easy to install and saves space.

The present invention provides an electric control brake master cylinder, which is disposed on a vehicle with an oil pressure brake system and at least one grip of the vehicle, the electric control brake master cylinder comprising:

The brake master pump set is provided with a main shell, an oil way piston set and a brake handle, wherein the main shell is fixedly combined with the at least one grip, the oil way piston set is arranged on the main shell and is provided with a piston, and the brake handle is rotatably combined with the main shell and is positioned at one side of the at least one grip; and

The power set is combined with the brake master pump set, is fixedly arranged on the main shell and can be driven by electric power, and can generate rotary power after being driven by electric power, and the rotary power can enable the piston to generate linear motion to generate braking;

the piston can be pushed to brake by pressing the brake handle, and can be pushed to brake by the rotary motion of the power set.

Further, as described above, the electric control brake master cylinder is provided with a main valve, a piston cylinder and an oil tank, wherein the main valve is disposed on the main housing, the piston cylinder is communicated with the main valve, the piston is disposed in the piston cylinder in a linearly movable manner, the oil tank is combined with the piston cylinder and is communicated with the piston cylinder and stores hydraulic oil, and when the piston moves in the piston cylinder in a linearly movable manner, the hydraulic oil in the oil tank is pushed to flow.

Still further, in the above-mentioned electronically controlled brake master cylinder, the power unit is electrically driven to generate a rotational motion, and directly pushes the piston to generate a brake.

Preferably, the electric control brake master cylinder as described above, wherein the power unit is electrically driven to generate a rotary motion, and pushes the brake handle to rotate towards the at least one grip, and indirectly pushes the piston through the brake handle to generate a brake.

Preferably, as in the above-mentioned electrically controlled brake master cylinder, the power unit is provided with a rotatable shifting piece which abuts against the brake handle, the shifting piece is a shifting lever which extends downwards out of the main shell and abuts against the brake handle, and the brake handle is concavely provided with an abutting groove which is combined with the shifting lever.

Preferably, as described above, the main housing is provided with a chamber, and the power unit is provided with a toggle member and a driving assembly, wherein the toggle member is rotatable and abuts against the brake handle, the driving assembly is arranged on the main housing and is provided with a driving rod extending into the chamber, and the driving rod is in driving connection with the toggle member, so that the toggle member is driven by the driving rod to rotate.

Preferably, as described above, the power unit is provided with a linkage assembly, the linkage assembly is disposed in the chamber of the main housing and is provided with a driving wheel and a linkage wheel, the driving wheel is combined with a driving rod of the driving assembly, and the linkage wheel is disposed in the chamber and is linked with the driving wheel, so that the driving assembly can drive the linkage wheel to rotate relative to the main housing via the driving rod and the driving wheel, and the toggle member is combined with the linkage wheel to rotate relative to the main housing along with the linkage wheel.

Preferably, in the above electric control brake master cylinder, the stirring member is eccentrically arranged on the linkage wheel and extends out of the accommodating chamber to abut against the brake handle, and when the linkage wheel rotates, the stirring member eccentrically rotates.

Preferably, in the above electric control brake master cylinder, a guiding groove is formed in the bottom of the main casing and is communicated with the chamber, and the toggle member extends out of the main casing through the guiding groove, so that the toggle member can move along the guiding groove when rotating relative to the main casing.

Preferably, as in the above-mentioned electric control brake master cylinder, the power unit is provided with a fixed axle center, and the fixed axle center is disposed in the accommodating chamber of the main casing and combined with the linking wheel, so that the linking wheel can be linked with the driving wheel in the accommodating chamber of the main casing.

Preferably, in the above electric control brake master cylinder, at least one bearing is sleeved on the fixed axle center, so that the connecting wheel can rotate stably relative to the fixed axle center.

Preferably, the electric control brake master cylinder as described above, wherein the driving component is a motor and planetary reducer disposed above the main casing.

Preferably, the electrically controlled brake master cylinder as described above, wherein the driving wheel and the linking wheel are two gears meshed with each other or are configured to be linked via a belt or other members.

Preferably, in the above electric control brake master cylinder, a piston return spring is disposed in the piston cylinder and abuts against the piston, so that the piston can return to an initial position through the piston return spring after moving linearly relative to the piston cylinder, and a brake handle return spring is disposed between the main housing and the brake handle, so that the brake handle can return to the initial position through the brake handle return spring after rotating relative to the grip, and a brake signal sensor is disposed on the brake handle.

Preferably, the electric control brake master cylinder as described above, wherein the main casing is provided with a support frame for the mobile phone to erect.

By virtue of the technical characteristics, the electric control brake master cylinder has at least the following advantages and effects:

1. The invention provides an electric control valve with low cost, which pushes the master pump in a direct rotary motion mode, can greatly simplify the number of required components and the structural complexity, does not need expensive parts such as a screw rod or a ball lead screw, and the like, and the electric control brake master pump is arranged on the left master pump without adding an assembly, thus greatly reducing the cost.

2. The invention provides a single purification scheme of an electric control braking system, which is matched with a linkage type braking system (CBS), only the left master cylinder is replaced by the electric control braking master cylinder, the front wheel and the rear wheel can be controlled to brake proportionally by the single electric control braking master cylinder, the design of the braking system of the original vehicle can be fully reserved, the braking system does not need to be redeveloped, and the development cost and the time are greatly reduced.

3. The invention provides a scheme with easy installation, and the installation work can be completed only by replacing the left master cylinder with the electric control brake master cylinder.

4. The invention provides a space-saving scheme, and takes the limit of the additional installation space of the vehicle into consideration, the invention is only constructed on the original position of the left master pump and has no more component space.

Furthermore, the electric control brake master cylinder can be integrated on small vehicles (including two-wheelers, tricycles and four-wheelers classified by the number of wheels) such as electric locomotives, electric bicycles, fuel locomotives, heavy trucks, electric tricycles, fuel tricycles, beach vehicles, agricultural vehicles, electric scooter, self-driven goods delivery small vehicles or movable robots, so as to realize functions of slope assistance (HSA), braking force assistance, active vehicle distance adjusting cruise system (ACC), active brake (AEB), self-driven electric control brake and the like, and can be matched with a linkage brake system (CBS), so that the single electric control brake master cylinder can control the front wheel and rear wheel proportional brake of the small vehicles simultaneously, the original brake system design of the small vehicles can be reserved, re-development is not needed, and the practicability of the electric control brake master cylinder is effectively improved.

Furthermore, the electric control brake master cylinder can retain the manual brake function of the small-sized vehicle when in use, and can cooperate with active braking and slope starting to have the electric control brake function, so that the small-sized vehicle has the functions of manual braking and electric control braking, the defect of manual braking can be effectively compensated, the function of manual braking can not be influenced when the electric control braking fails, and the electric control brake master cylinder can be used only by replacing one of the master cylinders of the existing small-sized vehicle with the electric control brake master cylinder of the invention when in assembly, thereby providing the electric control brake master cylinder which saves cost, has simple electric control brake system structure and is easy to install and saves space.

Drawings

FIG. 1 is a perspective view of an electrically controlled brake master cylinder according to a preferred embodiment of the present invention.

FIG. 2 is another perspective view of the electric brake master cylinder according to the preferred embodiment of the present invention.

FIG. 3 is a schematic diagram illustrating the operation of the electric brake master cylinder according to the preferred embodiment of the present invention in combination with a linkage brake system.

FIG. 4 is an exploded perspective view of a preferred embodiment of the electronically controlled brake master cylinder of the present invention.

FIG. 5 is another exploded perspective view of the preferred embodiment of the electronically controlled brake master cylinder of the present invention.

FIG. 6 is a cross-sectional side view of a preferred embodiment of the electronically controlled brake master cylinder of the present invention.

FIG. 7 is a schematic side view of a preferred embodiment of an electrically controlled brake master cylinder of the present invention in cross-section during braking.

FIG. 8 is another cross-sectional side view of a preferred embodiment of the electronically controlled brake master cylinder of the present invention.

FIG. 9 is a cross-sectional top view (hydraulic oil omitted) of a preferred embodiment of the electric brake master cylinder of the present invention.

FIG. 10 is a circuit block diagram of an electrically controlled brake master cylinder according to a preferred embodiment of the present invention.

FIG. 11 is a schematic perspective view of an electrically controlled brake master cylinder according to a preferred embodiment of the present invention (manual brake).

FIG. 12 is a schematic diagram of the operation of the master cylinder according to the preferred embodiment of the invention (indirect electric brake).

FIG. 13 is a schematic diagram of a cross-sectional top view of a preferred embodiment of the electrically controlled brake master cylinder (indirect electrically controlled brake) (hydraulic oil omitted) of the present invention.

FIG. 14 is a perspective view of still another embodiment of an electrically controlled brake master cylinder according to the present invention.

FIG. 15 is a side view of still another section of the preferred embodiment of the electronically controlled brake master cylinder of the present invention.

FIG. 16 is a schematic diagram illustrating a top view of a further cross-section of a preferred embodiment of the electric brake master cylinder (direct electric brake) according to the present invention.

FIG. 17 is a schematic diagram illustrating the operation of the electrically controlled brake master cylinder according to the preferred embodiment of the present invention with a support frame.

Detailed Description

So that the manner in which the above recited features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the preferred embodiments, some of which are illustrated in the appended drawings, wherein:

Referring to fig. 1 and 2, the present invention is an electric brake master pump, which can be installed and applied to a vehicle having an oil pressure brake system and at least one grip 30, such as an electric locomotive, an electric bicycle, a fuel locomotive, a heavy machine, an electric tricycle, a fuel tricycle, a beach vehicle, an agricultural vehicle, an electric scooter, a self-driving small-sized vehicle or a movable robot, wherein the electric brake master pump can replace a left master pump or a right master pump of the small-sized vehicle or can replace the left master pump and the right master pump on the small-sized vehicle at the same time, so that the small-sized vehicle can brake by the electric brake master pump of the present invention; further, the electrically controlled brake master cylinder of the present invention can be used with a small vehicle having a interlock brake system 40 (Combination Braking System; CBS), wherein the interlock brake system 40 is shown in fig. 3 (refer also to the related content of the locomotive interlock brake system of the dual disc brake of publication No. 470719 of taiwan of china), which is provided with a CBS valve body 41, a left master cylinder 42 and a right master cylinder 43, the left master cylinder 42 is connected with a rear brake caliper 44 of the small vehicle via the CBS valve body 41, the right master cylinder 43 is connected with a front brake caliper 45 of the small vehicle via the CBS valve body 41, because the interlock brake system 40 can brake the front wheel and the rear wheel of the small vehicle at the same time according to the brake ratio, the basic functions of the interlock brake system 40 are described below, wherein when the right brake handle 47 is manually pressed, the front wheel is actuated, the CBS 41 is balanced by the pressure when the left brake handle 46 is manually pressed, the front wheel is actuated, the front brake is controlled by the brake handle is controlled according to the ratio of the invention, and the electrically controlled by the small vehicle is the electrically controlled by the small vehicle, and the electrically controlled ratio of the small vehicle is the small vehicle, the front brake system is controlled by the small vehicle, the electrically controlled by the front brake system of the small vehicle is 4; the preferred embodiment of the electric control brake master cylinder of the present invention is arranged on a vehicle with an oil pressure brake system and at least one grip 30 of the vehicle, and is provided with a brake master pump set 10 and a power set 20, wherein:

As shown in fig. 4, 5 and 6, the brake master pump 10 is provided with a main shell 12, an oil-way piston set 14 and a brake handle 16, the main shell 12 is fixedly combined with the at least one grip 30, the oil-way piston set 14 is arranged on the main shell 12 and is provided with a piston 141, the brake handle 16 is rotatably combined with the main shell 12 and is arranged on one side of the at least one grip 30, one end of the brake handle 16 can abut against the piston 141, when the brake handle 16 rotates to be close to the at least one grip 30, the piston 141 can be pushed by the brake handle 16 to move, so that the oil-way piston set 14 can be operated to provide a braking effect, wherein as shown in fig. 3 and 7, the brake handle 16 pushes the piston 141, the piston 141 pushes hydraulic oil through an oil pipe to actuate the CBS valve body 41, the front and rear wheel caliper pistons are pushed by a braking proportion, the front brake caliper 45 and the rear brake caliper 44 can abut against the piston, when the brake handle 16 rotates to be pushed by the piston, the brake handle 20 can be pushed by the piston set 20, and the brake handle can be rotatably combined with the brake master pump set 20, and the brake master pump set 20 can be rotatably driven by the same as the brake handle 20, and the brake master pump set 20 can be rotatably and can be rotatably combined with the brake handle set 20.

Referring to fig. 4 to 6, the main housing 12 is provided with a fixed housing 13, the fixed housing 13 is detachably combined with the main housing 12, a containing chamber 15 is provided in the fixed housing 13, the containing chamber 15 can be located above or below the brake handle 16, the oil-way piston group 14 is arranged on the main housing 12 and is provided with a main valve 142, a piston cylinder 143 and an oil tank 144, the main valve 142 is arranged on the main housing 12, the main valve 142 is connected with the CBS valve body 41 through an oil pipe at a joint P11, the piston cylinder 143 is communicated with the main valve 142, the piston 141 can be arranged in the piston cylinder 143 in a linear movement manner, a piston return spring 145 which abuts against the piston 141 is further arranged in the piston cylinder 143, after the piston 141 moves in a linear movement manner relative to the piston cylinder 143, the piston cylinder 143 can return to an initial position, the oil tank 144 is combined with the piston cylinder 143 and is communicated with the piston cylinder 143 and stores a hydraulic oil, when the piston 141 moves in the piston cylinder 143 in a linear movement manner, the main valve 142 pushes the oil tank to move in the main housing 12, the piston cylinder 142 is further provided with a hydraulic oil return spring 146 which abuts against the brake handle 16, and a brake handle 16 is arranged in a linear movement manner, and a return spring 146 which abuts against the brake handle 16 is arranged in the end of the main handle 16, and a brake handle is arranged opposite to the end of the brake handle 16, and a brake handle is provided opposite to the brake handle, and the brake handle is provided with a handle 16, and a brake device is provided with a handle, which is opposite to the handle, and a handle, which is attached to the handle, and a device is attached to a device 16.

As shown in fig. 4 and 8, in the preferred embodiment of the electric control brake master cylinder of the present invention, the toggle member 21 of the power unit 20 is a toggle rod extending downward from the main housing 12 and abutting against the brake handle 16, and the brake handle 16 is concavely provided with an abutting groove 161 combined with the toggle rod; further, the striking member 21 is a link, a cable, a screw, or a cam, which can be driven by the power unit 20 to rotate and push the brake handle 16 to rotate, and is not limited herein; in addition, referring to fig. 6, after the toggle member 21 extends out of the main housing 12, the toggle member can move toward the piston 141 and push the piston 141 to brake without being abutted by the brake handle 16.

Referring to fig. 4,5, 8 and 9, the power unit 20 is provided with a driving component 22, the driving component 22 is disposed on the main housing 12 and is provided with a driving rod 221 extending into the chamber 15, the driving rod 221 is in driving connection with the stirring member 21, so that the stirring member 21 is driven by the driving rod 221 to rotate; preferably, the driving component 22 is a motor and planetary reducer disposed above the main housing 12; further, the power unit 20 is provided with a linkage assembly 23, the linkage assembly 23 is disposed in the chamber 15 of the main housing 12 and is provided with a driving wheel 24 and a linkage wheel 25, the driving wheel 24 is combined with a driving rod 221 of the driving assembly 22, so that the driving wheel 24 can rotate relative to the main housing 12 along with the driving rod 221, the linkage wheel 25 is disposed in the chamber 15 and is linked with the driving wheel 24, so that the driving assembly 22 can drive the linkage wheel 25 to rotate relative to the main housing 12 through the driving rod 221 and the driving wheel 24, the toggle member 21 is combined with the linkage wheel 25 to rotate relative to the main housing 12 along with the linkage wheel 25, so that the toggle member 21 can push the brake handle 16 to approach the grip 30 after rotating, preferably, the driving wheel 24 and the linkage wheel 25 can be in a structure form of two gears meshed with each other or a structure form of being capable of being linked through a belt or other, so that the toggle member 21 can rotate relative to the main housing 12 through the driving wheel 24 and the linkage wheel 25, namely, the technical scheme of the invention is not limited; in addition, referring to fig. 10, the driving assembly 22 is provided with a control unit 27, the control unit 27 is connected with the brake signal sensor 18, an angle sensor (not shown) is disposed above the linkage wheel 25 of the linkage assembly 23, wherein the control unit 27 is used for controlling the torque and the angle of the motor, and the angle sensor can be used for detecting and recording the rotation angle of the linkage wheel 25, so as to accurately control the rotation torque and the angle of the toggle member 21.

Further, when the toggle member 21 is a toggle lever as shown in fig. 4 and 5, the toggle lever is eccentrically disposed on the driving wheel 25 and extends out of the accommodating chamber 15 to abut against the brake handle 16, and when the driving wheel 25 rotates, the toggle lever eccentrically rotates; still further, referring to fig. 16, when the toggle member 21 does not need to abut against the brake lever 16, the linkage wheel 25 can directly push the piston 141 to move linearly when rotating.

Referring to fig. 4 and 8, a guiding slot 19 is formed in the bottom of the main housing 12, and is in communication with the chamber 15, and the toggle member 21 extends out of the main housing 12 through the guiding slot 19, such that the toggle member 21 can move along the guiding slot 19 when rotating relative to the main housing 12; referring to fig. 4 and 5, the power unit 20 is provided with a fixed axle center 26, the fixed axle center 26 is disposed in the chamber 15 of the main housing 12 and combined with the linking wheel 25, so that the linking wheel 25 can be linked with the driving wheel 24 in the chamber 15 of the main housing 12, and at least one bearing 261 is sleeved on the fixed axle center 26, so that the linking wheel 25 can rotate stably relative to the fixed axle center 26.

Preferably, in the preferred embodiment of the electric brake master cylinder of the present invention, when the driving assembly 22 is a motor and a planetary reducer disposed on the main housing 12, as shown in fig. 17, a support frame 50 for mounting a mobile phone 60 is disposed on one side of the motor and the planetary reducer.

When the electric control brake master cylinder of the present invention is operated, the operation can be divided into a manual brake mode and an electric control brake mode, wherein the manual brake mode is shown in fig. 3, 6 and 11, when the brake handle 16 rotates towards the grip 30 after being pressed by a user and approaches, the piston 141 is pushed to act relative to the piston cylinder 143 and the two oil return holes 146, so that hydraulic oil in the piston cylinder 143 acts on the CBS valve body 41 through the main valve 142 and the oil pipe, and the front and rear wheel caliper pistons are pushed according to the brake proportion through the pressure balance effect, so that the front brake caliper 45 and the rear brake caliper 44 respectively clamp corresponding brake discs to brake, therefore, the present invention can generate a manual brake effect on the small vehicle through the oil way piston set 14 after the brake handle 16 is pressed manually; when the user releases the brake handle 16, the piston return spring 145 will push the piston 141 to return to the initial position, and the brake handle return spring 17 will also push the brake handle 16 to return to the initial position, so that the oil-way piston set 14 returns to the initial state as shown in fig. 6; during the braking operation, the brake signal sensor 18 feeds back the control unit 27 with a signal of 0V when the brake is actuated, and feeds back the control unit 27 with a signal of 12V when the brake is not actuated.

When the preferred embodiment of the electric control brake master cylinder of the invention is in electric control operation, the electric control brake master cylinder comprises two modes of indirect electric control brake and direct electric control brake, and the indirect electric control brake and the direct electric control brake are respectively described as follows:

1. Indirect electric control brake: when an indirect electric control brake is to be used, please refer to fig. 12 and 13, wherein when the power set 20 receives the signal of the control unit 27, the driving component 22 is driven to act, the driving rod 221 drives the driving wheel 24 of the linkage component 23 to rotate, so that the linkage wheel 25 rotates relative to the main shell 12 along with the driving wheel 24, the stirring piece 21 eccentrically arranged on the linkage wheel 25 rotates relative to the main shell 12 along the guiding groove 19, the brake handle 16 abutted against the stirring piece 21 rotates relative to the main shell 12 to approach the grip 30, and meanwhile, the piston 141 is pushed to act relative to the piston cylinder 143 and the two oil return holes 146, so that the hydraulic oil in the piston cylinder 143 acts on the CBS valve body 41 through the main valve 142 and the oil pipe, and the front and rear wheel calipers 45 and 44 respectively clamp the corresponding brake discs through the pressure balance effect, so that the electric control brake system can indirectly generate an indirect electric control effect on the vehicle through the oil path 14 of the power set 20; after braking, the power unit 20 is reversely actuated to return to the initial position, so that the piston 141 is returned to the initial position by the pushing of the piston return spring 145, and the brake handle 16 is returned to the initial position by the brake handle return spring 17, so that the oil-way piston unit 14 is returned to the initial state as shown in fig. 6; during the braking operation, the brake signal sensor 18 feeds back the control unit 27 with a signal of 0V when the brake is actuated, and feeds back the control unit 27 with a signal of 12V when the brake is not actuated.

2. Direct electric control brake: when a direct electric control brake is to be used, please refer to fig. 14, 15 and 16, wherein when the power unit 20 receives the signal of the control unit 27, the driving assembly 22 is driven to act and drive the driving wheel 24 of the linkage assembly 23 to rotate, so that the linkage wheel 25 rotates relative to the main housing 12 along with the driving wheel 24, the toggle member 21 extending out of the main housing 12 directly rotates in the direction of the piston 141 and pushes the piston 141 to act relative to the piston cylinder 143 and the two oil return holes 146, so that the hydraulic oil in the piston cylinder 143 acts on the CBS valve body 41 through the main valve 142 and the oil pipe as shown in fig. 7, and the front and rear wheel caliper pistons are pushed according to the brake proportion to clamp the corresponding brake discs respectively to act the brake, therefore, the invention can directly act through the actuation of the power unit 20, so that the oil circuit piston set 14 generates a direct electric control brake effect on the small vehicle; after braking, the power unit 20 is reversely actuated to return to the initial position, so that the piston 141 is returned to the initial position by the pushing of the piston return spring 145, and the brake handle 16 is returned to the initial position by the brake handle return spring 17, so that the oil-way piston unit 14 is returned to the initial state as shown in fig. 6; during the braking operation, the brake signal sensor 18 feeds back the control unit 27 with a signal of 0V when the brake is actuated, and feeds back the control unit 27 with a signal of 12V when the brake is not actuated.

By means of the technical characteristics, the electric control brake master pump of the invention directly replaces the left master pump 42 or the right master pump 43 or both of the small-sized vehicle through the brake master pump set 10, and the power set 20 is arranged on the brake master pump set 10, so that the effect of directly controlling the electric control brake can be provided by directly pushing the piston 141 through the toggle piece 21 of the power set 20, or the electric control brake master pump of the invention drives the brake handle 16 to rotate to approach the grip 30 through the toggle piece 21, and an indirect electric control brake effect is produced through the oil-way piston set 14, namely, the operation mode of directly rotating the master pump is improved (rotating motion plus linear motion) without precious parts such as balls or screws, thus greatly reducing the cost, the number of components and the structural complexity of the required electric control brake can be greatly simplified, and the electric control brake master pump of the invention can directly replace one master pump 42, 43 of the small-sized vehicle without assembling space and the need of components, the requirement of greatly reducing the cost of the installation and the maintenance cost of the electric control system, and the installation time is greatly reduced; in addition, the user can also generate a manual braking effect by pressing the brake handle 16, so that the original manual braking effect of the small-sized vehicle is maintained, a new brake system is not required to be developed again, and development cost and time are greatly reduced; the brake system can be combined with an ABS system in application, and the whole original brake structure is unchanged (namely the original ABS system is unchanged), so that the operation and the use are feasible by adding an electric control mechanism (the invention) instead of manual force to push the brake handle 16.

Furthermore, the electric control brake master cylinder of the present invention can be integrated on a vehicle having an oil pressure brake system and at least one grip 30, such as an electric locomotive, an electric bicycle, a fuel locomotive, a heavy engine, an electric tricycle, a fuel tricycle, a beach vehicle, an agricultural vehicle, an electric scooter, a self-driving scooter or a mobile robot, etc., so as to realize functions of slope assistance (HSA), braking force assistance (assistance when manual braking is insufficient), an active vehicle distance adjustment cruise system (ACC), active brake (AEB), self-driving electric control brake, etc., and can cooperate with a linkage brake system 40 (CBS), so that the front and rear wheel ratio brake of the small vehicle can be controlled simultaneously, and the original brake system design of the small vehicle can be maintained without redevelopment, thereby effectively improving the practicability of the electric control brake master cylinder.

Furthermore, the electric control brake master cylinder can retain the manual brake function of the small-sized vehicle when in use, and can cooperate with active braking and slope starting to have the electric control brake function, so that the small-sized vehicle has the functions of manual braking and electric control braking, the deficiency of the manual braking can be effectively compensated, the function of the manual braking can not be influenced when the electric control braking fails, only one master cylinder 42 and 43 of the existing small-sized vehicle is required to be replaced when in assembly, and the electric control brake master cylinder is structured at the position of one master cylinder 42 and 43 for use without providing additional assembly space.

By virtue of the technical characteristics, the electric control brake master cylinder has at least the following advantages and effects:

1. The invention provides an electric control valve with low cost, which pushes the master pump in a direct rotary motion mode, thus greatly simplifying the number of components and the structural complexity, needing no expensive parts such as screw rods or ball lead screws, etc., and the electric control brake master pump is arranged on the left master pump 42, needing no additional components, and greatly reducing the cost.

2. The invention provides a single purification scheme of an electric control brake system, which is matched with a linkage brake system 40 (CBS), only the left master cylinder 42 is replaced by the electric control brake master cylinder of the invention, the front wheel and the rear wheel can be controlled to brake in proportion by a single electric control brake master cylinder, the design of the brake system of the original vehicle can be fully reserved, the brake system does not need to be redeveloped, and the development cost and the time are greatly reduced.

3. The invention provides a scheme with easy installation, and only the left master cylinder 42 is replaced by the electric control brake master cylinder, so that the additional installation work is completed.

4. The present invention provides a space-saving solution, considering the space constraints imposed by the vehicle, which is only built in the home position of the left master pump 42, without more than one component space.

The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any person skilled in the art will make local changes or modifications by using the technical disclosure of the present invention without departing from the scope of the technical disclosure of the present invention.

Claims (15)

1. An electric control brake master cylinder, characterized in that it is arranged on a vehicle with an oil pressure brake system and is positioned at least one grip of the vehicle, the electric control brake master cylinder comprises:

The brake master pump set is provided with a main shell, an oil way piston set and a brake handle, wherein the main shell is fixedly combined with the at least one grip, the oil way piston set is arranged on the main shell and is provided with a piston, and the brake handle is rotatably combined with the main shell and is positioned at one side of the at least one grip; and

The power set is combined with the brake master pump set, is fixedly arranged on the main shell and can be driven by electric power, and can generate rotary power after being driven by electric power, and the rotary power can enable the piston to generate linear motion to generate braking;

the piston can be pushed to brake by pressing the brake handle, and can be pushed to brake by the rotary motion of the power set.

2. The electric control brake master cylinder as claimed in claim 1, wherein the oil path piston group is provided with a main valve, a piston cylinder and an oil tank, the main valve is arranged on the main shell, the piston cylinder is communicated with the main valve, the piston is arranged in the piston cylinder in a linearly movable manner, the oil tank is combined with the piston cylinder and communicated with the piston cylinder and stores hydraulic oil, and the hydraulic oil in the oil tank is pushed to flow when the piston moves in the piston cylinder in a linearly movable manner.

3. The electric brake master cylinder of claim 2, wherein the power pack is electrically driven to generate rotational motion and directly push the piston to generate braking.

4. The electric brake master cylinder of claim 2, wherein the power pack is electrically driven to generate rotational motion and to push the brake handle to rotate toward the at least one grip, and indirectly via the brake handle to push the piston to generate braking.

5. The electric control brake master cylinder according to claim 2 or 4, wherein the power unit is provided with a toggle member which can rotate and is abutted against the brake handle, the toggle member is a toggle lever which extends downwards from the main shell and is abutted against the brake handle, and the brake handle is concavely provided with an abutting groove which is combined with the toggle lever.

6. The electric brake master cylinder according to any one of claims 1 to 4, wherein the main housing is provided with a chamber, the power unit is provided with a toggle member which can rotate and is abutted against the brake handle, and a driving assembly, the driving assembly is arranged on the main housing and is provided with a driving rod which extends into the chamber, and the driving rod is in driving connection with the toggle member, so that the toggle member rotates under the driving of the driving rod.

7. The electric brake master cylinder as claimed in claim 6, wherein the power unit is provided with a linkage assembly, the linkage assembly is disposed in the chamber of the main housing and is provided with a driving wheel and a linkage wheel, the driving wheel is combined with a driving rod of the driving assembly, the linkage wheel is disposed in the chamber and is linked with the driving wheel, the driving assembly can drive the linkage wheel to rotate relative to the main housing via the driving rod and the driving wheel, and the toggle member is combined with the linkage wheel to rotate relative to the main housing along with the linkage wheel.

8. The electric control brake master cylinder according to claim 7, wherein the toggle member is eccentrically arranged on the linkage wheel and extends out of the accommodating chamber to abut against the brake handle, and the toggle member eccentrically rotates when the linkage wheel rotates.

9. The electric brake master cylinder as claimed in claim 6, wherein the main housing has a guide slot penetrating through the bottom thereof and communicating with the chamber, and the toggle member extends out of the main housing through the guide slot, such that the toggle member moves along the guide slot when rotating relative to the main housing.

10. The electric brake master cylinder of claim 7, wherein the power unit is provided with a fixed axle center which is arranged in the accommodating chamber of the main shell and is combined with the linkage wheel, so that the linkage wheel can be linked with the driving wheel in the accommodating chamber of the main shell.

11. The electric brake master cylinder of claim 10, wherein the fixed axle center is sleeved with at least one bearing to enable the connecting wheel to rotate stably relative to the fixed axle center.

12. The electric brake master cylinder of claim 6, wherein the drive assembly is a motor and planetary reducer disposed above the main housing.

13. The electric brake master cylinder as claimed in claim 7, wherein the driving wheel and the interlocking wheel are of two gears engaged with each other or of a structure type interlocked by a belt or other members.

14. The electric control brake master cylinder according to any one of claims 1 to 4, wherein a piston return spring is disposed in the piston cylinder and is abutted against the piston, so that the piston can return to an initial position through the piston return spring after moving linearly relative to the piston cylinder, and a brake handle return spring is disposed between the main housing and the brake handle, so that the brake handle can return to the initial position through the brake handle return spring after rotating relative to the grip, and a brake signal sensor is disposed on the brake handle.

15. The electric brake master cylinder according to any one of claims 1 to 4, wherein a support frame for mounting a mobile phone is provided on the main housing.