Fatigue endurance test measuring method for automobile automatic gearbox P-gear parking mechanism

• Main Authors: SHI XIAOHUI, ZHANG ZHIGANG, SHI QUAN, LI SHANG, HAO JIANJUN, YU YONG, ZOU XIHONG, CHEN YANYUN
• Format: Patent
• Language: English
• Published: 10.06.2015
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a fatigue endurance test measuring method for an automobile automatic gearbox P-gear parking mechanism. According to the method, a computer starts a driving motor through a motor controller so as to control the parking mechanism to park at the P gear; the computer collects torque signals output by a torque sensor through a data collector in real time, and whether P-gear parking is successful or not is judged according to collected torque of an axle shaft of the automatic gearbox to be measured; the computer automatically accumulates the number of recording tests until a stipulated number of tests are completed or the P-gear parking mechanism is ineffective, and the computer automatically ends testing. Test measuring is performed on the fatigue life of the P-gear parking mechanism through simulating test working conditions, on an ascending road and a descending road, of the automatic gearbox, so that the reliability and accuracy of the fatigue endurance tests performed on the automobile gearbox P-gear parking mechanism are improved.