Integrated control parking locking mechanism

Abstract

The utility model discloses an integrated control parking locking mechanism, which belongs to the technical field of passenger car parking, and comprises a brake case, a driving component, a middle component and a driven component are arranged in the brake case, a locking component is arranged on the middle component, the locking component comprises a shifting fork and a pin roller, and the shifting fork is connected with the driven component. And the shifting fork pushes the pin roller to move in the contraction curved surface. According to the integrated control parking locking mechanism, related technologies are provided for upcoming L3 and L4 intelligent driving, and meanwhile the integrated control parking locking mechanism is beneficial for improving the integration degree of an automobile overall control system, simplifying a parking structure, reducing parking use cost and improving safety guarantee.

Description

Technical Field

[0001] The utility model relates to the technical field of passenger car parking, in particular to an integrated control parking locking mechanism. Background Art

[0002] Parking is an indispensable function for all cars. Currently, there is a separate control module for parking in the car. There are two forms of parking: pull rod parking system and electronic parking system. Traditional parking is mainly achieved by ratchet pawl to achieve parking lock. The steps are that when the parking brake signal is received and the braking force required for parking is provided, the pawl and ratchet tooth groove are engaged to reach the parking state, and the parking state is unlocked after the pawl is disengaged from the ratchet. Electronic parking cancels the traditional pull wire and uses electric signals to control the motor locking. The use cost and maintenance cost of using the module alone are high, the structure is complex, and it occupies a large space. At present, the wire control technology is developing rapidly, and it is an inevitable trend to improve the integration of vehicles. The traditional ratchet pawl structure has the problems of high noise, high friction, easy wear and cannot be integrated into the electronic mechanical braking system. Utility Model Content

[0003] The purpose of the utility model is to provide an integrated control parking lock mechanism to provide relevant technologies for the upcoming L3 and L4 intelligent driving, while helping to improve the integration of the overall control system of the vehicle, simplify the parking structure, reduce the cost of parking use, and improve safety.

[0004] To achieve the above-mentioned purpose, the utility model provides an integrated control parking lock mechanism, including a brake housing, wherein an active component, an intermediate component and a driven component are arranged in the brake housing, a locking component is arranged on the intermediate component, and the locking component includes a shift fork and a roller, and the shift fork pushes the roller to move in the contraction surface.

[0005] Preferably, the active component comprises a first gear, and the first gear is key-connected to the motor shaft.

[0006] Preferably, the intermediate component comprises a second gear and a fourth gear, the second gear and the fourth gear are coaxially arranged, the shift fork is integrally connected to the second gear, and the fourth gear is provided with a contraction curved surface on the inner side close to the second gear.

[0007] Preferably, a channel is provided in the contraction curved surface, the channel matches the rollers, and the number of the rollers is six.

[0008] Preferably, the second gear and the fourth gear transmit braking force through self-locking of rollers and channels when moving.

[0009] Preferably, the driven assembly comprises a third gear, and the third gear is key-connected to the output shaft.

[0010] Preferably, the driving component and the intermediate component are driven by gear meshing, and the intermediate component and the driven component are driven by gear meshing.

[0011] Therefore, the utility model adopts the above-mentioned integrated control parking lock mechanism, and adds a self-locking structure to play the parking lock function without affecting normal braking. It provides relevant technologies for the upcoming L3 and L4 intelligent driving, and at the same time helps to improve the integration of the overall control system of the car, simplify the parking structure, reduce the cost of parking, and improve safety.

[0012] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an exploded view of an embodiment of an integrated control parking lock mechanism of the utility model;

[0014] Figure 2 It is a structural schematic diagram of an embodiment of an integrated control parking lock mechanism of the utility model under a certain viewing angle;

[0015] Figure 3 It is a structural schematic diagram of an embodiment of an integrated control parking lock mechanism of the utility model from another perspective;

[0016] Figure 4 yes Figure 3 An enlarged schematic diagram of the fourth gear.

[0017] Reference numerals

[0018] 1. First gear; 2. Second gear; 3. Third gear; 4. Fourth gear; 5. Brake housing; 6. Roller; 7. Channel; 8. Shift fork. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Embodiment 1

[0022] like Figure 1-4 As shown, the utility model provides an integrated control parking lock mechanism, including a brake case 5, wherein an active component, an intermediate component and a driven component are arranged in the brake case 5, and the active component and the intermediate component are driven by gear meshing transmission, and the intermediate component and the driven component are driven by gear meshing transmission. The active component includes a first gear 1, and the first gear 1 is key-connected to the motor shaft. The motor shaft can drive the first gear 1 to rotate.

[0023] The intermediate component includes a second gear 2 and a fourth gear 4. The first gear 1 is meshed with the second gear 2, and the second gear 2 can be driven to rotate by the first gear 1. The second gear 2 and the fourth gear 4 are coaxially arranged, the shift fork 8 is integrally connected with the second gear 2, and the inner side of the fourth gear 4 close to the second gear 2 is provided with a contraction curved surface. The intermediate component is provided with a locking component, which includes a shift fork 8 and a roller 6. The shift fork 8 pushes the roller 6 to move in the contraction curved surface.

[0024] A groove 7 is provided in the contraction surface, and the groove 7 matches the roller 6. There are six rollers 6. The six grooves 7 in the fourth gear 4 correspond to six rollers 6. The rollers 6 can achieve a coaxial interference fit between the second gear 2 and the fourth gear 4. Finally, the rotation of the second gear 2 will drive the fourth gear 4 to rotate. At the same time, a retaining spring is used to limit the second gear 2 and the fourth gear 4 to prevent the gears from moving axially on the shaft.

[0025] The driven assembly includes a third gear 3, and a fourth gear 4 meshes with the third gear 3. When the fourth gear 4 rotates, it drives the third gear 3 to rotate. The third gear 3 is keyed to the output shaft, and the end of the output shaft is connected to a lead screw, which is connected to the brake piston. The lead screw is driven to rotate by the output shaft, and the brake piston is pushed by the lead screw to complete the braking process.

[0026] The specific locking process is: the car stops after braking. When the car tends to move forward or backward, the brake pad squeezes the piston, the piston pushes the lead screw, and the lead screw drives the output shaft in the reverse direction. At this time, the third gear 3 changes from the driven wheel during the previous braking to the driving wheel, and the second gear 2 and the fourth gear 4 change from the driving wheels during the previous braking to the driven wheels. There is a roller 6 in the fourth gear 4, and the shift fork 8 integrated with the second gear 2 will push the roller 6 in the fourth gear 4 to roll in the groove 7. When the roller 6 is shifted to the contraction surface in the fourth gear 4 (that is, the end of the groove 7 in the fourth gear 4 becomes narrower and narrower, and gradually shrinks, which will cause the roller 6 to be stuck in the groove 7), as the roller 6 rolls, the friction between the fourth gear 4 and the roller 6 will increase, thereby locking the clamping force, thereby realizing the parking lock.

[0027] When parking is completed, the control motor drives the second gear 2 to rotate, and the fourth gear 4 rotates with the second gear 2, thus canceling the clamping force lock, and the car can drive normally. This actuator is applied to the electronic mechanical brake system, and its control circuit can be shared, and the controller can judge whether it is a brake signal or a parking signal.

[0028] It is worth noting that some devices and structures not mentioned in the present invention are existing common technologies and are well known to those skilled in the art.

[0029] Therefore, the utility model adopts the above-mentioned integrated control parking lock mechanism to provide relevant technologies for the upcoming L3 and L4 intelligent driving, while helping to improve the integration of the overall control system of the vehicle, simplify the parking structure, reduce the cost of parking, and improve safety.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. An integrated control parking lock mechanism, characterized in that: It comprises a brake case, wherein an active component, an intermediate component and a driven component are arranged in the brake case, wherein a locking component is arranged on the intermediate component, and wherein the locking component comprises a shift fork and a roller, and wherein the shift fork pushes the roller to move in a contraction curved surface.

2. The integrated control parking lock mechanism according to claim 1, characterized in that: The active component comprises a first gear, and the first gear is key-connected to the motor shaft.

3. The integrated control parking lock mechanism according to claim 1, characterized in that: The intermediate component comprises a second gear and a fourth gear, the second gear and the fourth gear are coaxially arranged, the shift fork is integrally connected with the second gear, and a contraction curved surface is arranged on the inner side of the fourth gear close to the second gear.

4. The integrated control parking lock mechanism according to claim 3, characterized in that: A channel is provided in the contraction curved surface, the channel matches the rollers, and the number of the rollers is six.

5. The integrated control parking lock mechanism according to claim 4, characterized in that: The second gear and the fourth gear transmit braking force through the rollers which are self-locking with the channel during movement.

6. The integrated control parking lock mechanism according to claim 1, characterized in that: The driven assembly includes a third gear, and the third gear is keyed to the output shaft.

7. The integrated control parking lock mechanism according to claim 1, characterized in that: The driving component and the intermediate component are driven by gear meshing, and the intermediate component and the driven component are driven by gear meshing.

Images