Power-assisted braking device and vehicle

• Main Authors: LIU DONG, LI JINGE, ZHANG YAZHOU, SU PENGYUAN, MA NING, TIAN YIRUN, ZHAO FUCHENG, WANG RUIPING
• Format: Patent
• Language: Chinese; English
• Published: 30.08.2022
• Subjects: ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; PERFORMING OPERATIONS; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES; TRANSPORTING; VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES; VEHICLES IN GENERAL

The invention provides a power-assisted braking device and a vehicle. The power-assisted braking device comprises a booster, a speed reducing mechanism and a cam mechanism, wherein the speed reducing mechanism is connected between the booster and the cam mechanism; the cam mechanism comprises a cam and a push rod abutting against the profile of the cam, the profile molded line of the cam comprises a base circle involute, and the base circle center of the base circle involute coincides with the rotation center of the cam. The push rod is offset relative to the rotation center of the cam, and the offset distance between the central axis of the push rod and the rotation center of the cam is equal to the base circle radius of the cam. In the power-assisted braking device, the contour molded line of the cam comprises a base circle involute, and the offset distance between the central axis of the push rod and the rotation center of the cam is equal to the radius of a base circle, so that the displacement of the pus