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Electronic parking actuator capable of assisting and replacing hydraulic braking and parking device

An electronic parking and hydraulic braking technology, applied in the direction of brake actuators, electromechanical devices, electrical components, etc., can solve problems such as limiting the imagination space of electronic parking actuators, and achieve a compact overall structure and strong versatility. and adaptability, the effect of large reduction ratio

Pending Publication Date: 2021-08-10
OECHSLER PLASTIC PROD TAICANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This arrangement is only suitable for small-sized and low-power motors, and the size adjustment or functional expansion of the motor will easily conflict with the position of the brake disc, which also greatly limits the imagination of the electronic parking actuator for further expansion of functions

Method used

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  • Electronic parking actuator capable of assisting and replacing hydraulic braking and parking device
  • Electronic parking actuator capable of assisting and replacing hydraulic braking and parking device
  • Electronic parking actuator capable of assisting and replacing hydraulic braking and parking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] An electronic parking actuator that complements and replaces hydraulic braking, such as Figures 1 to 7 As shown, it includes a casing 1, a motor 2, a reduction transmission assembly 3, and a threaded shaft 4; the motor 2 is arranged in the casing 1 to provide a source of driving force; the reduction transmission assembly 3 is arranged in the casing 1, and the motor 2 After decelerating and increasing torque, the rotation is transmitted to the threaded shaft 4; the direction of the threaded shaft 4 is perpendicular to the direction of the rotating shaft of the motor 2, and the threaded shaft 4 rotates and acts externally.

[0034] In this embodiment, the reduction transmission assembly 3 includes a worm 31, a double gear 32, an inner ring gear 33, a planet carrier 34, and a set of planetary gears 35; the worm 31 is fixed on the rotating shaft of the motor 2; the outer ring of the double gear 32 A helical gear 321 cooperating with the worm 31 is fixed, and a sun gear 322...

Embodiment 2

[0041] An electronic parking device, such as Figures 1 to 10 As shown, it includes the electronic parking actuator provided in Embodiment 1, and also includes a caliper 9 with a bayonet 91 and a piston 92 slidably arranged in the caliper 9; the threaded shaft 4 is threadedly connected with the piston 92, and the threaded shaft 4 Rotation moves the piston 92 closer to or farther away from the bayonet 91 .

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Abstract

The invention belongs to the technical field of motor vehicle parking systems, and particularly relates to an electronic parking actuator capable of assisting and replacing hydraulic braking and a parking device. The electronic parking actuator comprises a shell, a motor, a speed reduction transmission assembly and a threaded shaft; the motor is arranged in the shell and provides a source of driving force; the speed reduction transmission assembly is arranged in the shell and transmits the rotation action of the motor to the threaded shaft after speed reduction and torque increase; and the direction of the threaded shaft is perpendicular to the direction of a rotating shaft of the motor, and the threaded shaft rotates and acts outwards. According to the electronic parking actuator provided by the invention, a brand new layout mode and a brand new transmission mode are adopted, the arrangement requirement of a high-power motor can be met, a large reduction ratio can be achieved at the front section of transmission, and therefore vibration and noise are reduced; a coded disc and a detection device are matched, so that the braking force can be accurately controlled; and the basic condition that one set of electronic parking actuator is used for replacing the combination of two sets of traditional hydraulic braking and electronic braking execution driving mechanisms is met.

Description

technical field [0001] The invention belongs to the technical field of motor vehicle parking systems, and in particular relates to an electronic parking actuator and a parking device that can assist and replace hydraulic braking. Background technique [0002] Most of the current electronic parking systems (EPB) of motor vehicles use integrated rear calipers. The integrated rear caliper consists of one set of caliper brake mechanism and two sets of executive drive mechanism. The caliper braking mechanism includes a caliper with a bayonet and a cylinder piston slidably arranged in the caliper. By driving the cylinder piston to push out toward the bayonet, the brake pads located in the bayonet can be squeezed to achieve braking. The executive driving mechanism is a hydraulic actuator and an electronic actuator that can work independently. Among them, the working principle of the hydraulic actuator is to pump hydraulic oil into the cylinder piston to push the cylinder piston t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/14H02K5/24F16D121/24F16D121/04F16D121/14F16D125/52F16D125/50F16D127/06
CPCF16D65/14F16D2121/04F16D2121/14F16D2121/24F16D2125/50F16D2125/52F16D2127/06H02K5/24
Inventor 史海坤黄建昌芮正国罗经纬
Owner OECHSLER PLASTIC PROD TAICANG
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