Hydraulic park actuator position signal acquisition device

Abstract

The application discloses a kind of hydraulic parking actuator position signal acquisition device, including magnet assembly, sensor, piston cylinder, electromagnetic valve, electromagnet and piston rod, the piston cylinder is connected with piston rod, the magnet assembly is positioned at the top position of piston rod, and magnet assembly is accessed to electric control system, the magnet assembly is electrically connected between electromagnet valve, electromagnet, and magnet assembly controls the position of electromagnetic valve, the electromagnetic valve controls oil passage opening and closing, and the electromagnet controls locking and unlocking.The hydraulic parking actuator position signal acquisition device disclosed in the application integrates the sensor on the piston cylinder of hydraulic parking mechanism assembly, has compact structure, requires small space, saves the design space of hydraulic parking mechanism assembly, ensures that hydraulic parking mechanism data acquisition is stable, integrated design reduces the number of parts, reduces cost, lightweight design, the total weight of component is reduced, and the torsional mass ratio of gearbox is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of new energy reduction machine, especially to a hydraulic parking actuator position signal acquisition device. BACKGROUND

[0002] The hydraulic parking actuator position signal acquisition device is an information collector applied to a new energy reduction machine, a magnet assembly is placed in a slot in the side wall of a piston cylinder, and an opening is used to install and fix a sensor, which not only solves the magnet assembly arrangement problem, but also increases the integration of the actuator, while reducing the weight of the piston cylinder. This design not only breaks the thinking mode of always installing magnets at both ends of the piston rod, but also does not increase the difficulty of product structure, and has advanced significance. With the continuous development of science and technology, people's requirements for the manufacturing process of the hydraulic parking actuator position signal acquisition device are also getting higher and higher.

[0003] The existing hydraulic parking actuator position signal acquisition device has certain disadvantages when in use. At present, the signal acquisition device in the parking mechanism of the automobile transmission is installed on the transmission housing due to insufficient space arrangement, and the sensor and the magnet assembly of the piston rod form a matching to realize the signal acquisition function. This implementation occupies a lot of arrangement space, and the sensor arrangement position is limited. In the limited space of the new energy reduction machine, this structure cannot meet the sensor space arrangement requirement, and a new scheme needs to be designed to arrange the device in the limited space to meet the functional requirement. Therefore, we propose a hydraulic parking actuator position signal acquisition device. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies in the prior art, the present application provides a hydraulic parking actuator position signal acquisition device, which integrates the sensor on the piston cylinder of the hydraulic parking mechanism assembly, has a compact structure, requires small space, saves the design space of the hydraulic parking mechanism assembly, ensures stable data acquisition of the hydraulic parking mechanism, integrates the design, reduces the number of parts, reduces the cost, realizes lightweight design, reduces the total weight of the components, increases the torsional mass ratio of the transmission, and can effectively solve the problems in the background art.

[0006] (II) Technical solutions

[0007] In order to achieve the above object, the technical scheme adopted by the present application is: a hydraulic parking actuator position signal acquisition device, comprising a magnet assembly, a sensor, a piston cylinder, a solenoid valve, an electromagnet and a piston rod, the piston cylinder is connected with the piston rod, the magnet assembly is positioned at the top of the piston rod, and the magnet assembly is connected to an electric control system, the magnet assembly is electrically connected with the solenoid valve and the electromagnet, and the magnet assembly controls the position of the solenoid valve, the solenoid valve controls the opening and closing of the oil passage, the electromagnet controls the locking and unlocking, the position of the magnet assembly and the piston rod moves back and forth, the sensor is electrically connected with the magnet assembly, and the sensor acquires the magnetic flux data of the magnet assembly.

[0008] As a preferred technical scheme of the present application, a cylinder seat is positioned and installed on the piston cylinder, a valve seat is positioned and installed on the cylinder seat, a rod seat is positioned and installed at the bottom of the cylinder seat, a hydraulic actuator is positioned on the outer side of the piston cylinder, an actuator seat is positioned on the cylinder seat, a positioning angle code is positioned on the actuator seat, a positioning groove is formed in the positioning angle code, and a valve port is positioned on the valve seat.

[0009] As a preferred technical scheme of the present application, a magnet limiting seat is installed on the outer side of the electromagnet, a guide seat is installed on the outer side of the magnet limiting seat, a rod sleeve, a mounting portion and a mounting support are provided on the piston rod, a cylinder top is connected to the top end of the piston rod, and a rod groove is formed in the bottom of the piston rod.

[0010] As a preferred technical scheme of the present application, a magnet groove is formed in the position of the magnet assembly on the piston cylinder, a valve body is provided at the position of the solenoid valve, a driving assembly is installed on the outer side of the solenoid valve, and a cylinder body is positioned on the inner wall of the piston cylinder.

[0011] As a preferred technical scheme of the present application, the magnet assembly is fixed on the piston rod by bolts, and the initial state of the magnet assembly is non-P state, a Hall element is provided in the sensor to acquire the surface magnetic flux data of the electromagnet at different positions and feed back to the electric control system to issue on-off command.

[0012] As a preferred technical scheme of the present application, the piston cylinder and the cylinder seat are integrally positioned, the cylinder seat and the valve seat are integrally positioned, the piston cylinder and the hydraulic actuator are electrically installed, and the hydraulic actuator is fixed on the actuator seat, and the actuator seat and the positioning angle code are fixedly installed.

[0013] As a preferred technical scheme of the present application, the electromagnet and the magnet limiting seat are positioned and installed, the magnet limiting seat and the guide seat are positioned and installed, the piston rod and the mounting portion and the mounting support are movable, and the piston rod and the rod groove are integrally formed.

[0014] As a preferred technical scheme of the present application, the magnet assembly is movable on the magnet slot, and the electromagnetic valve is electrically connected with the driving assembly.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the hydraulic parking actuator position signal acquisition device has the following beneficial effects: the sensor is integrated on the piston cylinder of the hydraulic parking mechanism assembly, the structure is compact, the required space is small, the design space of the hydraulic parking mechanism assembly is saved, the stability of the hydraulic parking mechanism data acquisition is ensured, the integrated design reduces the number of parts and the cost, the lightweight design reduces the total weight of the components, increases the torsional mass ratio of the gearbox, and the opening is used for mounting and fixing the sensor, which not only solves the problem of magnet assembly arrangement, but also increases the integration of the actuator, and reduces the weight of the piston cylinder. This design not only breaks the thinking mode of always installing magnets on both ends of the piston rod, but also does not increase the difficulty of product structure, and has advanced significance; 1. Multifunctionality of the device:

[0017] 1) integrate the sensor into the hydraulic actuator;

[0018] 2) the hydraulic cylinder side is provided with an opening for arranging the magnet assembly;

[0019] 3) realize the signal acquisition function in the same component;

[0020] 2. Stability of data acquisition:

[0021] 1) the sensor is installed on the actuator, and the position accuracy of the magnet assembly is more accurate, avoiding the risk of poor position accuracy of the sensor in the gearbox shell manufacturing and assembly;

[0022] 2) the magnet assembly has a guide and a limit, which avoids the risk of poor position accuracy of the magnet assembly caused by the movement of the piston rod, and is beneficial to the stability of data acquisition;

[0023] 3) the distance between the sensor and the magnet assembly is easier to ensure, and the mutual matching design brings accurate signal.

[0024] 3. Integrated design of the product: through the integrated design of the hydraulic parking actuator, the number of parts

[0025] 4. Lightweight design of the product: the piston cylinder cavity is made of engineering plastic by injection molding, which reduces the weight of the piston cylinder, and the entire hydraulic parking actuator position signal acquisition device has simple structure and convenient operation, and the use effect is better than that of the traditional way. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1It is the overall structure schematic view of the hydraulic parking actuator position signal acquisition device.

[0027] Figure 2 It is the structure schematic view of the piston rod in the hydraulic parking actuator position signal acquisition device.

[0028] Figure 3 It is the structure schematic view of the magnet assembly non-P state position in the hydraulic parking actuator position signal acquisition device.

[0029] Figure 4 It is the structure schematic view of the magnet assembly P gear state position in the hydraulic parking actuator position signal acquisition device.

[0030] Figure 5 It is the structure schematic view of the piston cylinder in the hydraulic parking actuator position signal acquisition device.

[0031] In the figure: 1, magnet assembly; 2, sensor; 3, piston cylinder; 4, electromagnetic valve; 5, electromagnet; 6, piston rod; 7, cylinder base; 8, rod base; 9, magnet limiting seat; 10, guide seat; 11, valve seat; 12, driving assembly; 13, valve body; 14, cylinder body; 15, positioning angle code; 16, positioning groove; 17, actuator base; 18, magnet groove; 19, cylinder top; 20, valve port; 21, hydraulic actuator; 22, rod groove; 23, mounting part; 24, rod sleeve; 25, mounting support. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be described clearly and completely in combination with the drawings and specific embodiments, but those skilled in the art will understand that the following described embodiments are part of the embodiments of the present application, not all the embodiments, and are only used to illustrate the present application, and should not be regarded as limiting the scope of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application. The specific conditions are not specified in the embodiments, and are carried out according to the conventional conditions or the conditions recommended by the manufacturer. The reagents or instruments used are not specified by the manufacturer, and are conventional products that can be purchased on the market.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] As shown in Figures 1-5 A kind of hydraulic parking actuator position signal acquisition device, including magnet assembly 1, sensor 2, piston cylinder 3, electromagnetic valve 4, electromagnet 5 and piston rod 6, piston cylinder 3 is connected between piston rod 6, magnet assembly 1 is positioned at the top position of piston rod 6, and magnet assembly 1 is accessed to electric control system, magnet assembly 1 is electrically connected between electromagnetic valve 4, electromagnet 5, and magnet assembly 1 controls the position of electromagnetic valve 4, electromagnetic valve 4 controls oil passage opening and closing, electromagnet 5 controls locking and unlocking, magnet assembly 1, piston rod 6 position makes to and fro piston movement, sensor 2 is electrically connected between magnet assembly 1, and sensor 2 collects the magnetic flux data of magnet assembly 1, sensor 2 is integrated on the piston cylinder 3 of hydraulic parking mechanism assembly, compact structure, small space requirement, saves the design space of hydraulic parking mechanism assembly, ensures that hydraulic parking mechanism data acquisition is stable, integrated design, reduces the number of parts, reduces cost, lightweight design, the total weight of component is reduced, increases the torsion quality ratio of gearbox.

[0036] Further, cylinder seat 7 is positioned and mounted on piston cylinder 3, valve seat 11 is positioned and mounted on cylinder seat 7, rod seat 8 is positioned and mounted on the bottom of cylinder seat 7, hydraulic actuator 21 is positioned on the outer side of piston cylinder 3, actuator seat 17 is positioned on cylinder seat 7, positioning angle code 15 is positioned on actuator seat 17, positioning groove 16 is formed on positioning angle code 15, and valve port 20 is positioned on the position of electromagnetic valve 4 installed on valve seat 11.

[0037] Further, the outer side of the electromagnet 5 is provided with a magnet limiting seat 9, the outer side of the magnet limiting seat 9 is provided with a guide seat 10, the piston rod 6 is provided with a rod sleeve 24, a mounting portion 23 and a mounting support 25, the top end of the piston rod 6 is connected with a cylinder top 19, and the bottom of the piston rod 6 is provided with a rod groove 22.

[0038] Further, the piston cylinder 3 is provided with a magnet groove 18 at the position of the magnet assembly 1, the position of the electromagnetic valve 4 is provided with a valve body 13, the outer side of the electromagnetic valve 4 is provided with a driving assembly 12, and the inner wall of the piston cylinder 3 is positioned with a cylinder body 14.

[0039] Further, the magnet assembly 1 is fixed on the piston rod 6 through bolts, the initial state of the magnet assembly 1 is a non-P state, the sensor 2 is provided with a Hall element to collect the electromagnet 5 at different positions and obtain the surface magnetic flux data, and feedback to the electric control system to issue on-off power command.

[0040] Further, the piston cylinder 3 and the cylinder seat 7 are integrally positioned, the cylinder seat 7 and the valve seat 11 are integrally positioned, the piston cylinder 3 and the hydraulic actuator 21 are electrically installed, the hydraulic actuator 21 is fixed on the actuator seat 17, and the actuator seat 17 and the positioning angle code 15 are fixedly installed.

[0041] Further, the electromagnet 5 and the magnet limiting seat 9 are positioned and installed, the magnet limiting seat 9 and the guide seat 10 are positioned and installed, the piston rod 6 and the mounting portion 23 and the mounting support 25 are movable, and the piston rod 6 and the rod groove 22 are integrally formed.

[0042] Further, the magnet assembly 1 moves on the magnet groove 18, and the electromagnetic valve 4 and the driving assembly 12 are electrically installed.

[0043] Working principle: the application includes magnet assembly 1, sensor 2, piston cylinder 3, electromagnetic valve 4, electromagnet 5, piston rod 6, cylinder base 7, rod base 8, magnet limiting seat 9, guide seat 10, valve seat 11, driving assembly 12, valve body 13, cylinder body 14, positioning angle code 15, positioning groove 16, actuator seat 17, magnet groove 18, cylinder top 19, valve port 20, hydraulic actuator 21, rod groove 22, mounting part 23, rod sleeve 24, mounting support 25, when in use, the sensor 2 is integrated on the piston cylinder 3 of the hydraulic parking mechanism assembly, the compact structure requires small space, saves the design space of the hydraulic parking mechanism assembly, ensures stable data acquisition of the hydraulic parking mechanism, integrated design reduces the number of parts and the cost, lightweight design, the total weight of the components is reduced, the torsional quality ratio of the gearbox is increased, the magnet assembly is fixed on the piston rod by bolts, connected to the electric control system, the initial state is non-P, the Hall element built-in the sensor collects the magnetic flux data of the magnet passing through the surface at different positions, feeds back to the system to issue on-off power command, the electromagnetic valve executes the command to control the opening and closing of the oil way, the electromagnet executes the command to control locking and unlocking, at the same time, the hydraulic oil pushes the piston rod and the magnet assembly to make reciprocating piston movement through the internal oil way, the stroke is 16mm, the distance between the magnet assembly and the side surface of the sensor is constant 1.5mm, so as to stably collect data; when non-P, the magnetic flux collection is 0, power on, the electromagnet is unlocked, the electromagnetic valve closes the oil outlet, the oil flows into the inner cavity and pushes the assembly to displace 16mm to the P gear position; when P, the magnetic flux reaches a certain value B at this time, power off, the electromagnetic valve opens the oil outlet, the oil is discharged, the spring pushes the assembly to displace to the non-P position, and the electromagnet is locked.

[0044] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0045] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A hydraulic park brake actuator position signal acquisition device comprising a magnet assembly (1), a sensor (2), a piston cylinder (3), a solenoid valve (4), a solenoid (5) and a piston rod (6), characterized in that: The piston cylinder (3) is connected with the piston rod (6), the magnet assembly (1) is positioned at the top of the piston rod (6), and the magnet assembly (1) is connected to the electric control system, the magnet assembly (1) is electrically connected with the electromagnetic valve (4) and the electromagnet (5), and the magnet assembly (1) controls the position of the electromagnetic valve (4), the electromagnetic valve (4) controls the opening and closing of the oil channel, the electromagnet (5) controls the locking and unlocking, the position of the magnet assembly (1) and the piston rod (6) reciprocating piston movement, the sensor (2) is electrically connected with the magnet assembly (1), and the sensor (2) collects the magnetic flux data of the magnet assembly (1); The cylinder seat (7) is positioned and installed on the piston cylinder (3), the valve seat (11) is positioned and installed on the cylinder seat (7), the rod seat (8) is positioned and installed at the bottom of the cylinder seat (7), the outer side of the piston cylinder (3) is positioned with the hydraulic actuator (21), the actuator seat (17) is positioned on the cylinder seat (7), the positioning angle code (15) is positioned on the actuator seat (17), the positioning groove (16) is formed on the positioning angle code (15), and the valve port (20) is positioned on the position of the electromagnetic valve (4) installed on the valve seat (11). The electromagnet (5) is installed with a magnet limiting seat (9) on the outside, the magnet limiting seat (9) is installed with a guide seat (10) on the outside, the piston rod (6) is provided with a rod sleeve (24), an installation part (23) and an installation support (25), and the top end of the piston rod (6) is connected with a cylinder top (19), and the bottom of the piston rod (6) is provided with a rod groove (22). The magnet slot (18) is formed on the piston cylinder (3) at the position of the magnet assembly (1), the valve body (13) is arranged at the position of the electromagnetic valve (4), the driving assembly (12) is installed on the outside of the electromagnetic valve (4), and the cylinder body (14) is positioned on the inner wall of the piston cylinder (3). The magnet assembly (1) is fixed on the piston rod (6) by bolts, and the initial state of the magnet assembly (1) is non-P state, the Hall element in the sensor (2) collects the electromagnetic iron (5) at different positions and obtains the surface magnetic flux data, and feeds back to the electric control system to issue on-off command.

2. A hydraulic park rod actuator position signal acquisition device according to claim 1, characterized in that: The piston cylinder (3) and the cylinder seat (7) are integrally positioned, the cylinder seat (7) and the valve seat (11) are integrally positioned, the piston cylinder (3) and the hydraulic actuator (21) are electrically installed, and the hydraulic actuator (21) is fixed on the actuator seat (17), and the actuator seat (17) and the positioning angle code (15) are fixedly installed.

3. A hydraulic park rod actuator position signal acquisition device according to claim 2, characterized in that: The electromagnet (5) and the magnet limiting seat (9) are positioned and installed, the magnet limiting seat (9) and the guide seat (10) are positioned and installed, the piston rod (6) and the installation part (23) and the installation support (25) are movable, and the piston rod (6) and the rod groove (22) are integrally formed.

4. A hydraulic park rod actuator position signal acquisition device according to claim 3, characterized in that: The magnet assembly (1) moves on the magnet slot (18), and the electromagnetic valve (4) and the driving assembly (12) are electrically installed.

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