Fixed caliper disc type electronic parking brake and car

Abstract

The invention discloses a fixed caliper disc type electronic parking brake. The electronic parking brake comprises a drive motor, a first speed reducing mechanism, a second speed reducing mechanism and a third speed reducing mechanism which are sequentially connected. Output torque of the drive motor is amplified through three-stage speed reduction. Motion converting mechanisms are connected behind the three-stage speed reducing mechanisms, and convert circular motion output by the third speed reducing mechanism into linear motion. The two motion converting mechanisms are arranged. Each motion converting mechanism is connected with one friction plate. The friction plates can do linear motion under driving of the motion converting mechanisms so as to clamp a brake disc. The fixed caliper disc type electronic parking brake is simple in structure, small in occupied space and size, easy to arrange, short in brake response time and high in safety, physical output of a driver is small, and hill starting operation is easy. The invention further discloses a car, a motorcycle, a refitted vehicle and a racing bicycle with an internal combustion engine as a power source.

Description

technical field [0001] The invention relates to an electronic parking brake applied to a passenger car, more precisely, the invention relates to an electronic parking brake applied to a fixed caliper disc brake. Background technique [0002] At present, ordinary passenger cars mostly use floating caliper disc brakes, while sports cars or racing cars mostly use multi-cylinder fixed caliper disc brakes. The existing car manual parking brake device mainly controls mechanical cables to drag brake levers and other mechanisms through the parking brake handle to make the brake shoes press the brake drum to realize the parking brake (drum brake), or tow The ball wedge mechanism (BIR) makes the brake pads on both sides of the brake disc clamp the brake disc to realize parking brake (floating caliper disc brake). With the improvement of the electronic level of automobiles, there are more and more comfort and convenience equipments in automobiles. Traditional manual parking brakes ar...

AI Technical Summary

Problems solved by technology

However, the multi-cylinder fixed-caliper disc brakes that are applied to sports cars and sports cars with faster response, greater braking force and more uniformity are difficult to upgrade to electronic parking brakes due to structural reasons, so such models are still common Use traditional human braking device, which cannot match its high car price and luxury configuration

The current solution generally uses an additional floating caliper disc electronic parking brake on the rear wheel to achieve automatic parking and assisted start. This solution has a low degree of integration, takes up a lot of space, and is difficult to arrange.

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